vega high school addition vega …e. complete data must be furnished showing performance, quality...

BRIDGERS & PAXTON CONSULTING ENGINEERS, INC.

4600C Montgomery Boulevard, NE

Albuquerque, New Mexico 87109

(505) 883-4111 — FAX 888-1436 – www.bpce.com

VEGA HIGH SCHOOL ADDITION

VEGA INDEPENDENT SCHOOL DISTRICT

TABLE OF CONTENTS

ELECTRICAL SPECIFICATIONS

Job No. 7390

November 3, 2015

DIVISION 26 - ELECTRICAL

Section 26 0500 Common Work Results for Electrical

Section 26 0502 Electrical Demolition

Section 26 0519 Low Voltage Electrical Power Conductors and Cables

Section 26 0526 Grounding and Bonding for Electrical Systems

Section 26 0529 Hangers and Supports for Electrical Systems

Section 26 0533 Raceway and Boxes for Electrical Systems

Section 26 0553 Identification for Electrical Systems

Section 26 0573 Overcurrent Protective Device Coordination Study

Section 26 0574 Overcurrent Prot4ective Device Arc-Flash Study

Section 26 0880 Electrical Acceptance Testing

Section 26 2213 Low Voltage Distribution Transformers

Section 26 2413 Switchboards

Section 26 2820 Ground-Fault Protection

Section 26 4313 Surge Protection Devices for Low Voltage Electrical Power Circuits

DIVISION 27 – COMMUNICATIONS

Section 27 0528 Pathways for Communications Systems

Section 27 0543 Underground Ducts and Raceways for Communications Systems

Vega High School Addition

Vega Independent School District

COMMON WORK RESULTS FOR ELECTRICAL 26 0500 - 1

SECTION 26 0500 - COMMON WORK RESULTS FOR ELECTRICAL

PART 1 - GENERAL

1.1 RELATED DOCUMENTS

A. Drawings and general provisions of Contract, including General Conditions, Supplementary Conditions, and

Division 1 Specification Sections apply to all Sections of Division 26.

B. The requirements listed under General Conditions and Supplementary Conditions and the General

Requirements are applicable to this section and all subsequent sections of Division 26 and form a part of the

contract.

C. See Division 1, Coordination for additional requirements.

D. See Division 1, Cutting and Patching for additional requirements.

E. See Division 1, Submittals for additional requirements.

F. See Division 7, Joint Sealants for additional requirements.

G. See Division 9, Painting for additional requirements.

1.2 SUMMARY

A. This Section includes general administrative and procedural requirements of electrical installations. The

following administrative and procedural requirements are included in this Section to expand the requirements

specified in Division 1:

1. Submittals

2. Coordination Drawings

3. Record Documents

4. Maintenance Manuals

5. Rough-Ins

6. Electrical Installations

7. Cutting and Patching

1.3 ELECTRICAL DIVISION INDEX

Section 26 0500 Common Work Results for Electrical

Section 26 0502 Electrical Demolition

Section 26 0519 Low Voltage Electrical Power Conductors and Cables

Section 26 0526 Grounding and Bonding for Electrical Systems

Section 26 0529 Hangers and Supports for Electrical Systems

Section 26 0533 Raceway and Boxes for Electrical Systems

Section 26 0553 Identification for Electrical Systems

Section 26 0573 Overcurrent Protective Device Coordination Study

Section 26 0574 Overcurrent Prot4ective Device Arc-Flash Study

Section 26 0880 Electrical Acceptance Testing

Section 26 2213 Low Voltage Distribution Transformers




Section 26 2413 Switchboards

Section 26 2820 Ground-Fault Protection

Section 26 4313 Surge Protection Devices for Low Voltage Electrical Power Circuits

1.4 CODES AND PERMITS

A. Perform electrical work in strict accordance with the applicable provisions of the National Electrical Code,

Latest Edition; National Electric Safety Code, Latest Edition; the International Building Code, Latest Edition

as adopted and interpreted by the State of New Mexico, City of Albuquerque, and the National Fire Protection

Association (NFPA Regulations), current adopted edition. Provide all materials and labor necessary to

comply with rules, regulations and ordinances. Where the drawings and/or specifications indicate materials or

construction in excess of code requirements, the drawings and/or specifications shall govern. The Contractor

shall hold and save the Engineer free and harmless from liability of any nature or kind arising from his failure

to comply with codes and ordinances.

B. Secure and pay for all permits necessary for performance of the work. Permits and inspections must be

obtained from C.I.D. in order to perform any electrical work at UNM, and should be displayed on the jobsite

for the job duration.

C. The following lists applicable codes and standards that, as a minimum, shall be followed.

Applicable county and state electrical codes, laws and ordinances

UNM PPD E&ES “Electrical Specifications for Contractors and Personnel Doing Work at the University of

New Mexico” (latest edition)

New Mexico Night Sky Protection Act

UNM PPD Utility’s “Electrical Upgrade Guidelines”

National Electrical Manufacturer's Association Standards

National Electrical Code

National Electrical Safety Code

Underwriters Laboratories, Inc. Standards

American National Standards Institute

American Society for Testing Materials Standards

Standards and requirements of local utility companies

National Fire Protection Association Standards

Institute of Electrical and Electronics Engineers Standards

Insulated Cable Engineers Association

Occupational Safety and Health Act




Uniform Fire Code

Americans with Disabilities Act

Commercial and Industrial Insulation Standards (MICA)

1.5 RECORD DRAWINGS

A. Maintain a complete and accurate set of marked up blue-line prints showing information on the installed

location and arrangement of all electrical work, and in particular, where changes were made during

construction. Use red color to indicate additions or corrections to prints, green color to indicate deletions, and

yellow color to indicate items were installed as shown. Keep record drawings accurate and up-to-date

throughout the construction period. Record drawings may be reviewed and checked by the Owner's

Representative during the construction and in conjunction with review and approval of monthly pay requests.

Include copies of all addenda, RFI's, bulletins, and change orders neatly taped or attached to record drawing

set. Transmit drawings to the Owner's Representative at the conclusion of the project for delivery to the

Owner's Representative.

B. Prepare record documents in accordance with the requirements in Division 1, Section "PROJECT

CLOSEOUT." In addition to the requirements specified in Division 1, indicate installed conditions for:

1. Major raceway systems, size and location, for both exterior and interior; locations of control devices;

distribution and branch electrical circuitry; and fuse and circuit breaker size and arrangements.

2. Equipment locations (exposed and concealed), dimensioned from prominent building lines.

3. Approved substitutions, Contract Modifications, and actual equipment and materials installed.

1.6 QUALIFICATIONS

A. All electricians shall be skilled in their respective trade.

B. All persons performing electrical work at UNM must use and adhere to UNM’s Electrical Safety Program,

including their “Lock-out/Tag-out” and “Energized Electrical Work” policies.

C. All personnel shall be licensed for the work they are performing. A licensed Journeyman shall be present for

All electrical work, and in no case will the Journeyman / Apprentice ratio exceed 2 Apprentices to 1

Journeyman. All personnel shall be trained for the hazards present in the tasks they are performing (e.g.

confined spaces).

D. “Hot” electrical work (at greater than 250 volts) shall only be performed with the prior approval of the PPD-

EESD. Any time “Hot” electrical work is performed, 2 competent persons must be present at all times. An

“Energized Electrical Work Permit” must be obtained.

1.7 SUBSTITUTIONS

A. Identification of Division 26 equipment, fixtures, and materials listed within this Specification and in the

Equipment Schedules on the drawings, which are identified by manufacturer's name, trade name, and/or model

numbers are generally not meant to give preference to any manufacturer, but are provided to establish the

design requirements and standards.




B. Equipment submitted for substitution must fit the space conditions leaving adequate room for maintenance

around all equipment. A minimum of 36 inches, or more if required by Code, must be maintained clear in

front of all electrical panels, starters, gutters, or other electrical apparatus. Submit drawings showing the

layout, size and exact method of interconnection of conduit, wiring and controls, which shall conform to the

manufacturer's recommendations and these specifications. The scale of these drawings shall be scale of

Contract Drawings. The Contractor shall bear the excess costs, by any and all crafts, of fitting the equipment

into the space and the system designated. Where additional labor or material is required to permit equipment

submitted for substitution to function in an approved manner, this shall be furnished and installed by the

Contractor without additional cost to the Owner.

C. Equipment submitted for substitution shall be approved in writing by the Owner or his representative and shall

be accompanied by the following:

1. A sample of each item submitted for substitution shall accompany the submittal.

2. Provide a unit price quotation with each item intended for substitution. Include a unit price for the

specified item and a unit price for the intended substitute item. Provide a total (per item) of the

differential payback to the Owner should the intended substitute item be approved as equivalent to that

which is specified.

3. Reimburse the Owner for the Architect/Engineer's additional services required to review and process

substitutions.

D. Substitutions shall be approved in writing by the Owner or his representatives. The determination of the

Owner shall be final.

1.8 HAZARDOUS CONDITIONS

A. Protruding metal (bolts, steel angles, etc.) potentially hazardous to maintenance and operation personnel, shall

be cut back and/or protected to reduce the risk of injury.

1.9 DEFINITIONS

A. Definitions of terms will be found in the National Electrical Code.

B. Whenever a term is used in this Specification which is defined in the Code, the definition given will govern its

meaning in this Specification.

C. Whenever a technical term is used which does not appear in the Code, the definition to govern its meaning in

these Specifications will be found in the Standard Dictionary of Electrical and Electronic Terms, published by

the Institute of Electrical and Electronics Engineers, 445 Hoes Lane, Piscataway, New Jersey 08855-1331.

D. "Provide" means furnish, install, connect and test unless otherwise noted.

1.10 SUBMITTALS

A. The Contractor shall submit submittal brochures of equipment, fixtures and materials to be furnished under

Division 26.

B. Unauthorized Substitutions: If substitute materials, equipment or systems are installed without prior review or

are installed in a manner which is not in conformance with the requirement of this Specification and for which

the Contractor has not received a written review, removal of the unauthorized materials and installation of

those indicated or specified shall be provided at no change in contract amount.




C. Install equipment in accordance with the manufacturer's recommendations. Provide accessories and

components for optimum operation as recommended by the manufacturer.

D. Costs for the preparation, correction, delivery, and return of the submittals shall be borne by the Contractor.

E. Complete data must be furnished showing performance, quality and dimensions. No equipment or materials

shall be purchased prior to receiving written notification from the Architect/Engineer that submittals have

been reviewed and marked either "NO EXCEPTIONS TAKEN" or "EXCEPTIONS AS NOTED."

Submittals returned marked "EXCEPTIONS AS NOTED" do not require resubmittal provided that the

Contractor agrees to comply with all exceptions noted in the submittal, and so states in a letter to the

Architect/Engineer.

F. Review of Submittals: Submittals will be reviewed with reasonable promptness, but only for conformance

with the design concept of the Project and for conformance with the information indicated on the Drawings

and stated in the Specifications. Review of a separate item as such will not indicate review of the assembly in

which the item functions. Review of submittals shall not relieve the Contractor of responsibility for any

deviation from the requirements of the Contract Documents, nor for errors or omissions in the submittals; or

for the accuracy of dimensions and quantities, the adequacy of connections, and the proper and acceptable

fitting, execution, functioning and completion of the work. Review shall not relieve the Contractor of

responsibility for the equipment fitting within the allotted space shown on the drawings with all clearances

required for equipment operation, service and maintenance including a minimum of 3 feet clear in front of all

electrical equipment and panels as defined by the National Electrical Code. Any relocation of mechanical

and/or electrical equipment, materials and systems required to comply with minimum clearances shall be

provided by the Contractor without additional cost under the Contract.

G. Shop Drawings: Unless the following information is included, shop drawings will be returned unchecked:

1. Cover sheet for each submittal, listing equipment, products, and materials, and referencing data and

sections in Specifications and drawings. Clearly reference project name and provide space for a

review stamp.

2. Cover sheet shall clearly identify deviations from specifications, and justification.

3. Include all related equipment in a single submittal to allow complete review. Similar equipment may

be submitted under a common cover sheet.

4. Size, dimensions, and weight of equipment.

5. Equipment performance under specified conditions, not a copy of scheduled data on drawings.

6. Indicate actual equipment proposed, where data sheets indicate more than one (1) device or equipment.

H. Use of substitutions reviewed and checked by the Engineer does not relieve the Contractor from compliance

with the Contract Documents. Contractor shall bear all extra expense resulting from the use of any

substitutions where substitutions affect adjoining or related work required in this Division or other Divisions

of this Specification.

I. If Contractor substitutes equipment for that drawn to scale on the drawings, he shall prepare a 1/4" = 1'-0"

installation drawing for each equipment room where a substitution is made, using dimensions of substituted

equipment, and including piping, and electrical equipment requirements, to verify that equipment will fit space

with adequate clearances for maintenance. This 1/4" = 1'-0" fabrication drawing shall be submitted, for

review by the Owner's Representative, with the shop drawing submittals of the substituted. Failure to comply

with this requirement will result in the shop drawings being returned unchecked.

J. See Division 1 for additional submission requirements.




1.11 MAINTENANCE MANUALS

A. Prepare maintenance manuals in accordance with Division 1, Section "PROJECT CLOSEOUT." In addition

to the requirements specified in Division 1, include the following information for equipment items:

1. Description of function, normal operating characteristics and limitations, performance curves,

engineering data and tests, and complete nomenclature and commercial numbers of replacement parts.

2. Manufacturer’s printed operating procedures to include start-up, break-in, and routine and normal

operating instructions; regulation, control, stopping, shutdown, and emergency instructions; and

summer and winter operating instructions.

3. Maintenance procedures for routine preventative maintenance and troubleshooting; disassembly,

repair, and reassembly; aligning and adjusting instructions.

4. Servicing instructions and lubrication charts and schedules.

1.12 USE OF CADD FILES

A. Under certain conditions, the Contractor will be permitted the use of the Engineer's CADD files for

documentation of as-builts, submittals, or coordination drawings.

B. The Engineer shall be compensated for the time required to format the CADD files for delivery to the

Contractor. Such work may include removal of title blocks, professional seals, calculations, proprietary

information, etc.

C. The Contractor shall complete the enclosed License, Indemnity and Warranty Agreement, complete with

contractor's name, address, and Contractor's Representative signature prior to request for CADD file usage.

1.13 DRAWINGS AND SPECIFICATIONS

A. Electrical drawings are diagrammatic, but shall be followed as closely as actual construction and work of the

other sections shall permit. Size and location of equipment is drawn to scale wherever possible. Do not scale

from electrical drawings.

B. Drawings and specifications are for the assistance and guidance of the Contractor. Exact locations, distances,

and levels will be governed by the building. The Contractor shall make use of data in all the Contract

Documents to verify information at the building site.

C. In any case where there appears to be a conflict between that which is shown on the electrical drawings, and

that shown in any other part of the Contract Documents, the Contractor shall notify and secure directions from

the Architect.

D. Drawings and specifications are intended to complement each other. Where a conflict exists between the

requirements of the drawings and/or the specifications, request clarification. Do not proceed with work

without direction.

E. The Architect shall interpret the drawings and the specifications. The Architect's interpretation as to the true

intent and meaning thereof and the quality, quantity, and sufficiency of the materials and workmanship

furnished there under shall be accepted as final and conclusive.

F. In the case of conflicts not clarified prior to the bidding deadline, use the most costly alternative (better

quality, greater quantity, and larger size) in preparing the bid. A clarification will be issued to the successful

bidder as soon as feasible after the award and, if appropriate, a deductive change order will be issued.




G. Where items are specified in the singular, this division shall provide the quantity as shown on drawings plus

any spares or extras indicated on the drawings or in the specifications.

H. Investigate structural and finish conditions and arrange work accordingly. Provide all fittings, equipment, and

accessories required for actual conditions.

1.14 SIMILAR MATERIALS

A. All items of a similar type shall be products of the same manufacturer.

B. Contractor shall coordinate among suppliers of various equipment to assure that similar equipment type is

product of the same manufacturer.

C. Examples of similar equipment types include but are not limited to:

1. Occupancy / Vacancy Sensors

2. Wiring Devices

3. Photocells

4. Circuit Breakers

1.15 DELIVERY, STORAGE AND HANDLING

A. Deliver products to the project properly identified with names, model numbers, types, grades, compliance

labels, and other information needed for identification.

1.16 GUARANTEE-WARRANTY

A. See Division 1 for warranties.

B. The following guarantee is a part of the specifications and shall be binding on the Contractor:

"The Contractor guarantees that this installation is free from ALL defects. He agrees to replace or

repair any part of the installation which may fail within a period of one (1) year after date established

below, provided that such failure is due to defects in the materials or workmanship or to failure to

follow the specifications and drawings. Warranty of the Contractor-furnished equipment or systems

shall begin on the date the system or equipment is placed in operation for beneficial use of the Owner

or occupancy by the Owner, whichever occurs first; such date to be determined in writing by means of

issuing a 'Certificate of Substantial Completion', AIA Form G704."

C. The extent of guarantees or warranties by Equipment and/or Materials Manufacturers shall not diminish the

requirements of the Contractor's guarantee-warranty to the Owner.

D. All items of electrical equipment furnished and installed under Division 26 shall be provided with a full one

(1) year parts and labor warranty from the date of “Final Acceptance”.




PART 2 - PRODUCTS

2.1 QUALITY OF MATERIALS

A. All equipment and materials shall be new, and shall be the standard product of manufacturers regularly

engaged in the production of electrical equipment, and shall be the manufacturer's latest design. Specific

equipment, shown in schedules on drawings and specified herein, is to set forth a standard of quality and

operation.

2.2 ALTITUDE RATINGS

A. Unless otherwise noted, all specified equipment capacities are for an altitude of 5,500 feet above sea level and

adjustments to manufacturer's ratings must be made accordingly.

2.3 EQUIPMENT REQUIREMENTS

A. The electrical requirements for equipment specified or indicated on the drawings are based on information

available at the time of design. If equipment furnished for installation has electrical requirements other than

those indicated on the electrical drawings, make all adjustments to wire and conduit size, controls, over

current protection and installation as required to accommodate the equipment supplied. Delineate all

adjustments to the drawings reflecting the electrical system in a submittal to the Contract Administrator

immediately upon knowledge of the required adjustment.

PART 3 - EXECUTION

3.1 COOPERATION WITH OTHER TRADES

A. Coordinate all work so that the construction operations can proceed without harm to the Owner from inter-

ference, delay, or absence of coordination. The Contractor shall be responsible for the size and accuracy of

all openings.

3.2 DRAWINGS

A. The electrical drawings show the general arrangement of all lighting, power, special systems, equipment, etc.,

and shall be followed as closely as actual building construction and work of other trades will permit.

Whenever discrepancies occur between plans and specifications, the most stringent shall govern. All Contract

Documents shall be considered as part of the work. Coordinate with architectural, mechanical, and structural

drawings. Because of the small scale of the electrical drawings, it is not possible to indicate all offsets, fittings

and accessories which may be required. Provide all fittings, boxes, and accessories as may be required to

meet actual conditions. Should conditions necessitate a rearrangement of equipment, such departures and the

reasons, therefore, shall be submitted by the Contractor for review in the form of detailed drawings showing

the proposed changes. No changes shall be made without the prior written approval. All changes shall be

marked on record drawings.

B. Should any doubt or question arise in respect to the true meaning of the drawings or specifications, the

question shall be submitted in writing.




C. Installation of all equipment shall be arranged to provide all clearances required for equipment operation,

service, and maintenance, including minimum clearance, as defined by the National Electrical Code (NEC).

D. The installation of all concealed electrical systems shall be carefully arranged to fit within the available space

without interference with adjacent structural and mechanical systems.

3.3 ELECTRICAL INSTALLATIONS

A. General: Sequence, coordinate, and integrate the various elements of electrical system, materials,

and equipment. Comply with the following requirements:

1. Coordinate electrical systems, equipment, and materials installation with all other building

components.

2. Verify all dimensions by field measurements.

3. Arrange for chases, slots, and openings in all other building components during progress of

construction, to allow for electrical installations.

4. Coordinate the installation of required supporting devices and sleeves to be set in poured-in-place

concrete and other structural components as they are constructed.

5. Sequence, coordinate, and integrate installations of electrical materials and equipment for efficient

flow of the Work. Give particular attention to large equipment requiring positioning prior to closing in

the building.

6. Where mounting heights are not detailed or dimensioned, install systems, materials, and equipment to

provide the maximum clearance possible.

7. Branch circuits in offices and computer areas to have an individual neutral for each phase.

8. Install systems, materials, and equipment to conform with approved submittal data, including

coordination drawings, to greatest extent possible. Conform to arrangements indicated by the Contract

Documents, recognizing that portions of the Work are shown only in diagrammatic form. Where

coordination requirements conflict with individual system requirements, refer conflict to the Architect.

9. Install systems, materials, and equipment level and plumb, parallel and perpendicular to other building

systems and components.

10. Install electrical equipment to facilitate servicing, maintenance, and repair or replacement of

equipment components. As much as practical, connect equipment for ease of disconnecting, with

minimum of interference with other installations.

11. Install access panel or doors where units are concealed behind finished surfaces.

12. Install systems, materials, and equipment giving right-of-way priority to systems requiring installation

at a specified slope.

13. Prior to working on any circuits that supply motorized equipment, the contractor shall verify the

(clockwise or counterclockwise) rotation of the equipment, and ensure that when re-energized, the

equipment maintains proper rotation.

B. At no time will a contractor leave any electrical switchgear, panels, or energized devices open or exposed in a

public area without having qualified electrical personnel working on or guarding the exposed electrical

components.

C. The contractor is responsible for supplying the appropriate signs, flagging, and/or fencing to identify the

construction area and to restrict entry. It is the duty of the contractor to ensure a safe environment to its staff,

sub-contractors, and any occupants in the vicinity.

D. All protective devices shall be circuit breaker type. In other words, an enclosed circuit breaker is to be used in

preference to a fused safety switch. Non-fused, heavy duty, safety switches are acceptable for local equipment

maintenance disconnection.




E. Motor-operated equipment (i.e. fan coil units) must be supplied by a minimum of a local manual motor starter

with thermal overloads. It should be mounted on the side of the control enclosure, or within 3 feet maximum

of the unit. Code required working clearances must be maintained in front of disconnects and control

enclosures.

F. All motor operated equipment and its’ associated electrical equipment must maintain the NEC required

working clearances to facilitate safe access and maintenance. The PPD-EESD reserves the right to request

equipment relocation if adequate working clearance is not provided.

G. All service disconnecting switches (fused or non-fused) for rooftop or remote equipment are to be mounted on

the exterior of the equipment and shall be heavy duty, hand operated safety switches. Disconnects requiring

screw in fuses or pull blocks are not acceptable. Equipment disconnect switches should be readily accessible,

and should in no case require the removal of a panel or opening of a door to access the service disconnect.

Furthermore, all service disconnect switches shall have an adequate number of poles to interrupt all current

carrying conductors to the unit.

3.4 FIELD MEASUREMENTS

A. No extra compensation shall be claimed or allowed due to differences between actual dimensions, including

dimensions of equipment, fixtures and materials furnished, and those indicated on the drawings. Contractor

shall examine adjoining work, and shall report any work which must be corrected. Review of submittal data

in accordance with paragraph "Submittals" shall in no manner relieve the Contractor of responsibility for the

proper installation of the electrical work within the available space. Installation of equipment and systems

within the building space shall be carefully coordinated by the Contractor.

3.5 EQUIPMENT SUPPORT

A. Provide support for equipment to the building structure. Provide all necessary structures, inserts, sleeves,

firestops and hanging devices for installation of equipment. Coordinate installation of devices. Verify with

the Architect that the devices and supports are adequate as intended and do not overload the building's

structural components in any way.

3.6 PAINTING

A. All finish painting of electrical systems and equipment will be under "Painting," unless equipment is

hereinafter specified to be painted.

B. All equipment shall be provided with factory applied standard finish, unless otherwise specified.

C. Touch-Up: If the factory finish on any equipment is damaged in shipment or during construction of the

building, the equipment shall be refinished to the satisfaction of the Owner's Representative.

3.7 SEISMIC SUPPORTS

A. The Contractor shall be responsible for all anchors and connections for the electrical work to the building

structure to prevent damage of equipment and systems due to seismic activity.




B. See Section 26 0548 Vibration and Seismic Controls for Electrical Systems for requirements for seismic

supporting of electrical equipment and systems.

C. Provide seismic anchoring and supports to meet IBC Site Design Category C requirements.

3.8 PROTECTION OF MATERIALS AND EQUIPMENT

A. The Contractor shall be responsible for the protection of all work, materials and equipment furnished and

installed under this section of the specifications, whether incorporated in the building or not.

B. All items of electrical equipment shall be stored in a protected weatherproof enclosure prior to installation

within the building, or shall be otherwise protected from the weather in a suitable manner approved by the

Owner's Representative.

C. The Contractor shall provide protection for all work and shall be responsible for all damage done to property,

equipment and materials. Storage of materials within the building shall be approved by the Owner's

Representative prior to such storage.

D. Conduit openings shall be closed with caps or plugs, or covered to prevent lodgment of dirt or trash during the

course of installation. At the completion of the work, fixtures, equipment and materials shall be cleaned and

polished thoroughly and delivered in a condition satisfactory to the Owner's Representative.

3.9 ERECTION OF METAL SUPPORTS AND ANCHORAGE

A. Cut, fit, and place miscellaneous metal fabrications accurately in location, alignment, and elevation to support

and anchor electrical materials and equipment.

B. Field Welding: Comply with AWS "Structural Welding Code."

3.10 ERECTION OF WOOD SUPPORTS AND ANCHORAGE

A. Cut, fit, and place wood grounds, nailers, blocking, and anchorage accurately in location, alignment, and

elevation to support and anchor electrical materials and equipment.

B. Select fastener sizes that will not penetrate members where opposite side will be exposed to view or will

receive finish materials. Make tight connections between members. Install fasteners without splitting wood

members.

C. Attach to substrates as required to support applied loads.

3.11 APPLICATION OF JOINT SEALERS

A. General: Comply with joint sealer manufacturer’s printed application instructions applicable to products and

applications indicated, except where more stringent requirements apply.

1. Comply with recommendations of ASTM C 962 for use of elastomeric joint sealants.

2. Comply with recommendations of ASTM C 790 for use of acrylic-emulsion joint sealants.




B. Immediately after sealant application and prior to time shinning or curing begins, tool sealants to form

smooth, uniform beads; to eliminate air pockets; and to ensure contact and adhesion of sealant with sides of

joint. Remove excess sealants from surfaces adjacent to joint. Do not use tooling agents that discolor sealants

or adjacent surfaces or are not approved by sealant manufacturer.

C. Firestopping Sealant: Provide sealant, including forming, packing, and other accessory materials, to fill

openings around electrical services penetrating floors and walls, to provide fire-stops with fire-resistance

ratings indicated for floor or wall assembly in which penetration occurs. Comply with installation

requirements established by testing and inspecting agency.

3.12 INSTALLATION OF ACCESS DOORS

A. Set frames accurately in position and securely attached to supports, with face panels plumb and level in

relation to adjacent finish surfaces.

B. Adjust hardware and panels after installation for proper operation.

3.13 CUTTING AND PATCHING

A. Perform cutting and patching in accordance with Division 1, Section "CUTTING AND PATCHING." In

addition to the requirements specified in Division 1, the following requirements apply:

1. Perform cutting, fitting, and patching of electrical equipment and materials required to:

a. Remove and replace defective Work.

b. Remove and replace Work not conforming to requirements of the Contract Documents.

c. Remove samples of installed Work as specified for testing.

d. Install equipment and materials in existing structures.

e. Upon written instructions from the Contracting Officer, uncover and restore Work to

provide for Contracting Officer observation of concealed Work.

2. Cut, remove, and legally dispose of selected electrical equipment, components, and materials as

indicated, including but not limited to removal of electrical items indicated to be removed and items

made obsolete by the new Work.

3. Protect the structure, furnishings, finishes, and adjacent materials not indicated or scheduled to be

removed.

4. Provide and maintain temporary partitions or dust barriers adequate to prevent the spread of dust and

dirt to adjacent areas.

5. During cutting and patching operations, protect adjacent installations.

6. Patch existing finished surfaces and building components using new materials matching existing

materials and experienced installers.

3.14 MANUFACTURER'S INSTRUCTIONS

A. All equipment shall be installed in strict accordance with recommendations of the manufacturer. If such

recommendations conflict with plans and specifications, the Contractor shall submit such conflicts to the

Owner's Representative who shall make such compromises as he deems necessary and desirable.




3.15 OWNER FURNISHED EQUIPMENT

A. Some equipment has either been pre-purchased or is in the process of being pre-purchased by the Owner. It

has been necessary to take this approach in order to meet the construction deadlines of the project. The pre-

purchased equipment will be indicated on the drawings.

B. Included in Work Scope:

1. Follow and expedite the delivery of each piece of equipment to assure the equipment delivery stays on

schedule. Notify the Owner of any problems or delays.

2. Receive, unload, uncrate, and install each item of pre-purchased and Owner furnished equipment.

3. Confirm that each item has been received complete and as specified. Notify the Owner and the

manufacturer's representative in writing of any deficiencies or damage.

4. Coordinate with the manufacturer's representative on start-up and provide all necessary personnel to

assist Owner's operating personnel and/or manufacturer's service personnel in start-up and

commissioning.

5. Provide all items not listed as pre-purchased.

C. The Contractor shall not be responsible for the following in regards to pre-purchased and Owner furnished

equipment:

1. Payment

2. Equipment Warranty

3. Submittals

4. Operating and Maintenance Manuals

5. Equipment Performance

D. Submittals, installation instructions, and warranty provisions for pre-purchased equipment will be furnished to

the Contractor by the Owner.

3.16 TESTS

A. All tests shall be conducted in the presence of the designated and authorized Owner's Representative. The

Contractor shall notify the Owner's Representative one week in advance of all tests. The Contractor shall

furnish all necessary equipment, materials, and labor to perform the required tests.

3.17 OPERATION AND MAINTENANCE INSTRUCTIONS

A. The Contractor shall furnish the complete operating and maintenance instructions covering all units of

electrical equipment herein specified together with parts lists. Furnish four (4) copies of all the literature;

each shall be suitably bound in loose leaf book form.

B. Operating and maintenance manuals as required herein shall be submitted for review not less than two (2)

weeks prior to the date scheduled for the Contractor to provide Operating and Maintenance Instructions to the

Owner as specified herein.

C. Upon completion of all work and all tests, Contractor shall furnish the necessary skilled labor and helpers for

operating the electrical systems and equipment for a period of five (5) days of eight (8) hours each. During

this period, the Contractor shall instruct the Owner or his representative in the operations, adjustment and

maintenance of all equipment furnished. Contractor shall provide at least two weeks notice in advance of this




period, with a written schedule of each training session, the subject of the session, the Contractors'

representatives who plan to attend the session, and the time for each session.

D. The Contractor shall video tape the instruction and training sessions using a VHS camcorder, and at the

completion and acceptance (by Owner and Architect) of the training sessions, the Contractor shall submit (2)

copies of the video tape.

3.18 CERTIFICATIONS

A. Before receiving final payment, certify in writing that all equipment furnished and all work done is in

compliance with all applicable codes mentioned in these specifications. Submit certifications and acceptance

certificates to the Owner’s Representative including proof of delivery of O&M manuals, spare parts required,

and equipment warranties which shall be bound with O&M manuals.

3.19 INTERRUPTING SERVICES

A. The Contractor shall coordinate the installation of all work within the building in order to minimize

interference with the operation of existing building electrical telephone, fire alarm, and utility systems during

construction. Connections to existing systems requiring the interruption of service within the building shall be

carefully coordinated and approved by UNM PPD-EESD to minimize system downtimes. Requests for the

interruption of existing services shall be submitted in writing a minimum of two (2) weeks before the

scheduled date. Absolutely no interruption of the existing services will be permitted without the written

review.

3.20 OPERATION PRIOR TO ACCEPTANCE

A. Operation of equipment and systems installed by the Contractor for the benefit of the Owner prior to

substantial completion will be allowed providing a written agreement between the Owner and the Contractor

has established warranty and other responsibilities to the satisfaction of both parties.

B. Operation of equipment and systems installed by the Contractor, for the benefit of the Contractor, except for

the purposes of testing and balancing will not be permitted without a written agreement between the Owner

and the Contractor establishing warranty and other responsibilities.

3.21 SITE VISITS AND OBSERVATION OF CONSTRUCTION

A. The Architect/Engineer will make periodic visits to the project site at various stages of construction in order to

observe the progress and quality of various aspects of the Contractor's work, in order to determine in general

if such work is proceeding in accordance with the Contract Documents. This observation by the

Architect/Engineer however, shall in no way release the Contractor from his complete responsibility to

supervise, direct, and control all construction work and activities, nor shall the Architect/Engineer have

authority over, or a responsibility to means, methods, techniques, sequences, or procedures of construction

provided by the Contractor or for safety precautions and programs, or for failure by the Contractor to comply

with all law, regulations, and codes.

END OF SECTION


DIVISION 26 SUBSTITUTION REQUEST FORM (SRF)

TO: BRIDGERS & PAXTON CONSULTING ENGINEERS, INC.

PROJECT:

We hereby submit for your consideration the following product instead of the specified item for the above project:

Section: Page: Paragraph/Line: Specified Item:

Proposed Substitution:

Attach complete product description, drawings, photographs, performance and test data, and other information

necessary for evaluation. Identify specific Model Numbers, finishes, options, etc.

1. Will changes be required to building design in order to properly install proposed substitutions? YES NO

If YES, explain:

2. Will the undersigned pay for changes to the building design, including engineering and drawing costs, caused by

requested substitutions? YES NO

3. List differences between proposed substitutions and specified item.

Specified Item Proposed Substitution

4. Does substitution affect Drawing dimensions? YES NO

5. What affect does substitution have on other trades?

6. Does the manufacturer's warranty for proposed substitution differ from that specified? YES NO

If YES, explain:

7. Will substitution affect progress schedule? YES NO

If YES, explain:

8. Will maintenance and service parts be locally available for substitution? YES NO

If YES, explain:

9. Is substitution identical in appearance and function to specialized product? YES NO

Submitting Firm: Date:

Address:

Signature: Telephone:

For Engineer's Use Only

Accepted: Not Accepted: Received Too Late:

By: Date:

Remarks:

License, Indemnity & Warranty Agreement Revised 4/19/01

Bridgers & Paxton Consulting Engineers, Inc. Page 16

LICENSE, INDEMNITY AND WARRANTY AGREEMENT

BETWEEN: Bridgers & Paxton Consulting Engineers, Inc.

4600-C Montgomery Blvd NE

Albuquerque, New Mexico 87109

and the Contractor:

For use of CADD Database by the Contractor for:

PROJECT:

LICENSE:

1.1 LICENSE GRANT: The Contractor is granted use of the CADD Database for the specific purpose of preparing

submittal documents for the Project. No other use of the CADD Database is granted. Title to the CADD Database is not

transferred to the Contractor.

1.2 COPYING RESTRICTIONS: The Contractor may copy the CADD Database in whole or in part, only for

backup and archival purposes and for use by the Contractor’s Subcontractors. All of the Contractor’s Subcontractors

who receive a copy of the CADD Database in whole or in part shall be bound by the terms and conditions of this

Agreement.

1.3 TRANSFER OF CADD DATABASE: The Contractor may not transfer the CADD Database to any other party

other than as specified in Section 1.2 of this Agreement.

WARRANTY

2.1 DATABASE WARRANTY: Bridgers & Paxton Consulting Engineers, Inc. disclaims all warranties with

regard to the database supplied hereunder, including all implied warranties of fitness. Bridgers & Paxton Consulting

Engineers, Inc., disclaims all obligations or liabilities for damages, including, but not limited to, consequential damages

rising out of or in connection with the use of performance of the database.

INDEMNITY

3.1 INDEMNITY: The Contractor recognizes that the use of the database will be at the Contractor’s sole risk and

without any liability, risk or legal exposure by Bridgers & Paxton Consulting Engineers, Inc. The Contractor recognizes

that it is impossible for the Engineer to assure the accuracy, completeness and sufficiency of such information, either

because it is impossible to verify, or because of errors or omissions which may have occurred in assembling the

information the Engineer is providing. Furthermore, in that these CADD Database files are considered to be information

furnished to the Contractor by others, it shall be the Contractor’s sole responsibility to verify dimensions in the drawings

prior to using these database files for his intended purpose. Furthermore, the Contractor shall, to the fullest extent

permitted by law, defend, indemnify and hold harmless Bridgers & Paxton Consulting Engineers, Inc., from all claims,

damages, losses, and attorney fees arising out of or resulting from the use of the database.

License, Indemnity & Warranty Agreement Revised 4/19/01

Bridgers & Paxton Consulting Engineers, Inc. Page 17

COMPENSATION

3.2 COMPENSATION: The Contractor shall compensate Bridgers & Paxton for the time required to format the

CADD files for delivery to the Contractor. Such work may include removal of title blocks, professional seals,

calculations, proprietary information, etc. No time shall be expended making any substantive changes to the drawings.

The cost for this time will be billed at the rate of $75.00 / Hour. It is not anticipated that more than four (4) hours will be

required to complete this task. An invoice will be generated and delivered with the drawing files. Payment for the

services shall be made within thirty (30) days of the receipt of the invoice.

ACKNOWLEDGMENT

4.1 ACKNOWLEDGMENT: The Contractor acknowledges that (s)he has read this Agreement, understands it,

and agrees to be bound by its terms and conditions.

CONTRACTOR’S REPRESENTATIVE

Authorized Signature:

Title:

Date:

BRIDGERS & PAXTON CONSULTING ENGINEERS, INC.

Authorized Signature:

Title:

Date:



DEMOLITION FOR ELECTRICAL SYSTEMS 26 0502 - 1

SECTION 26 0502 - DEMOLITION FOR ELECTRICAL SYSTEMS

PART 1 - GENERAL


A. Drawings and general provisions of Contract, including General Conditions, Supplementary Conditions, and

Division 1 Specification Sections apply to this Section.

B. See Section 26 0500 for Common Work Results for Electrical.

1.2 SCOPE OF WORK

A. Provide all material, equipment and labor as required to remove, relocate and/or reconnect all electrical work

identified in these specifications and indicated on the drawings.

1.3 SUMMARY

A. This Section includes limited scope, general construction materials and methods for application with electrical

installations as follows:

1. Selective demolition including:

a. Nondestructive removal of materials and equipment for reuse or salvage as indicated.

b. Dismantling electrical materials and equipment made obsolete by these installations.

2. Miscellaneous metals for support of electrical materials and equipment.

3. Nailers, blocking, fasteners, and anchorage for support of electrical materials and equipment.

4. Joint sealers for sealing around electrical materials and equipment; and for sealing penetrations in

fire and smoke barriers, floors, and foundation walls.

5. Access panels and doors in walls, ceilings, and floors for access to electrical materials and

equipment.

1.4 PROJECT CONDITIONS

A. Conditions affecting selective demolition: The following project conditions apply:

1. Protect adjacent materials indicated to remain. Install and maintain dust and noise barriers to keep

dirt, dust, and noise from being transmitted to adjacent areas. Remove protection and barriers after

demolition operations are complete.

2. Locate, identify, and protect electrical services passing through demolition area and serving other

areas outside the demolition limits. Maintain services to areas outside demolition limits. When

services must be interrupted, install temporary services for affected areas.




PART 2 - PRODUCTS

2.1 MATERIALS AND EQUIPMENT

A. Verify field measurements and circuiting arrangements as shown on drawings.

B. Verify that abandoned wiring and equipment serve only abandoned facilities.

C. Demolition drawings are based on casual field observation and existing record documents. Report

discrepancies to Architect/Engineer before disturbing existing installation.

D. Beginning of demolition means Contractor accepts existing conditions.

PART 3 - EXECUTION

3.1 PREPARATION

A. Coordinate and obtain approval for utility service outages with PPD-EESD a minimum of 14 days prior to

outage.

B. Provide temporary wiring, connections, and portable generators as necessary to maintain existing systems in

service during construction. When work must be performed on energized equipment or circuits, use personnel

experienced in such operations.

C. Existing electrical services: Maintain existing system in service. Disable portions of system only to make

connections. Obtain permission from the Owner's Representative at least 14 days before disabling any portion

of the system. Minimize outage duration. Make temporary connections to maintain service in areas adjacent

to work area.

3.2 DEMOLITION AND EXTENSION OF EXISTING ELECTRICAL WORK

A. Demolish and extend existing electrical work under provisions of this section.

B. Remove, relocate and extend existing installations to accommodate new construction.

C. Remove abandoned wiring to source of supply.

D. Remove exposed abandoned conduit, including abandoned conduit above accessible ceiling finishes. Cut

conduit flush with walls and floors, and patch surfaces.

E. Disconnect abandoned outlets and remove devices. Remove abandoned outlets if conduit serving them is

removed. Provide blank cover for abandoned outlets which are not removed. Provide blank cover for

abandoned outlets which are not removed.

F. Disconnect and remove electrical devices and equipment serving utilization equipment that has been removed.

G. Disconnect and remove abandoned luminaries. Remove brackets, stems, hangers, and other accessories.




H. Repair adjacent construction and finishes damaged during demolition and extension work. Any damage to

building, piping or equipment shall be repaired by skilled mechanics of the trades involved at no additional

cost to the Owner.

I. Maintain access to existing electrical installations which remain active. Modify installation or provide access

panel as appropriate.

J. Extend existing installations using materials and methods compatible with existing electrical installations, or

as specified.

K. Removal and replacement of ceiling tile(s) to perform work operations shall be the responsibility of the

Contractor. The Contractor shall be responsible for replacement of any ceiling tiles or framework that may

become damaged at no cost to the Owner

L. Conduit in Concealed Locations: Remove conductors, cap both ends of conduit, and label conduit as

"Abandoned" at both ends. Where conduit runs below grade, cap both ends of conduit and abandon in place.

Where conduit runs below floor slab, additionally, chip out concrete around conduit, remove conduit to

bottom of slab level, and patch floor to match existing.

3.3 CLEANING AND REPAIR

A. Clean and repair existing materials and equipment which remain or are to be reused.

B. Panelboards: Clean exposed surfaces and check tightness of electrical connections. Replace damaged circuit

breakers and provide closure plates for vacant positions. Provide typed circuit directory showing revised

circuiting arrangement.

C. Luminaries: Remove existing luminaries for cleaning, as indicated on drawings. Use mild detergent to clean

all exterior and interior surfaces; rinse with clean water and wipe dry. Replace lamps, ballasts and broken

electrical parts.

D. Materials and equipment to be salvaged: Remove, demount, and disconnect existing electrical materials and

equipment indicated to be removed and salvaged, and deliver materials and equipment to the location

designated for storage.

E. Disposal and cleanup: All removed equipment and materials are the property of the University. Remove from

the site and legally dispose of demolished materials and equipment that the University has not decided to

retain.

3.4 INSTALLATION

A. Install relocated materials and equipment under the provisions of this section.

3.5 ITEMS SALVAGED TO OWNER

A. Items salvaged to Owner are as indicated on drawings. Move and store in dry location as directed. Refuse

materials and items not salvaged shall be removed from the site and legally disposed of.

END OF SECTION



LOW VOLTAGE ELECTRICAL POWER CONDUCTORS AND CABLES 26 0519 - 1

SECTION 26 0519 - LOW VOLTAGE ELECTRICAL POWER CONDUCTORS AND CABLES

PART 1 - GENERAL


A. Drawings and general provisions of the Contract, including General and Supplementary Conditions and

Division 1 Specification Sections, apply to this Section.

1.2 SUMMARY

A. This Section includes building wires and cables and associated splices, connectors, and terminations for

wiring systems rated 600 volts and less.

B. Related Sections: The following Sections contain requirements that relate to this Section:

1. Division 26, Section 26 0529, Hangers and Supports for Electrical Systems for supports and anchors

for fastening cable directly to building finishes.

2. Division 26, Section 26 0553, Identification for Electrical Systems for insulation color coding and wire

and cable markers.

1.3 SUBMITTALS

A. Field test reports indicating and interpreting test results relative to compliance with performance requirements

of testing standard.

1.4 QUALITY ASSURANCE

A. Testing Agency Qualifications: In addition to the requirements specified in Division 1 Section "Quality

Control Services," an independent testing agency shall meet OSHA criteria for accreditation of testing

laboratories, Title 29, Part 1907, or shall be a full member company of the International Electrical Testing

Association (NETA).

1. Testing Agency's Field Supervisor Qualifications: A person currently certified by the NETA National

Institute for Certification in Engineering Technologies to supervise on-site testing specified in Part 3.

B. Listing and Labeling: Provide products specified in this Section that are listed and labeled.

1. The Terms "Listed and Labeled": As defined in the National Electrical Code, Article 100.

C. Comply with NFPA 70 National Electrical Code for components and installation.

1.5 SEQUENCING AND SCHEDULING

A. Coordination: Coordinate layout and installation of cable with other installations.

B. Revise locations and elevations from those indicated as required to suit field conditions.




1.6 DELIVERY, STORAGE, AND HANDLING

A. Deliver wire and cable according to NEMA WC-26.

PART 2 - PRODUCTS

2.1 MANUFACTURERS

A. Manufacturers: Subject to compliance with requirements, provide products by one of the following:

1. Wires and Cables:

a. American Insulated Wire Corporation, Leviton Manufacturing Co.

b. Brand-Rex Cable Systems, Brintec Corp.

c. Carol Cable Company, Inc.

d. Senator Wire & Cable Co.

e. Southwire Co.

2. Connectors for Wires and Cables:

a. AMP, Inc.

b. Anderson, Square D Co.

c. Electrical Products Division, 3M Co.

d. O-Z/Gedney Unit, General Signal.

2.2 BUILDING WIRES AND CABLES

A. UL listed building wires and cables with conductor material, insulation type, cable construction, and rating as

specified in Part 3 "Applications" Article.

B. Thermoplastic Insulation: Comply with NEMA WC 5.

C. Conductor Material: Copper.

D. Solid conductor for 10 AWG and smaller; stranded conductor for larger than 10 AWG. Stranded conductor

for controls and connections subject to vibration.

2.3 CONNECTORS AND SPLICES

A. UL-listed factory-fabricated wiring connectors of size, ampacity rating, material, and type and class for

application and for service indicated. Select to comply with Project's installation requirements and as

specified in Part 3 "Applications" Article.




PART 3 - EXECUTION

3.1 EXAMINATION

A. Examine raceways and building finishes to receive wires and cables for compliance with installation

tolerances and other conditions. Do not proceed with installation until unsatisfactory conditions have been

corrected.

3.2 APPLICATIONS

A. Branch Circuits: Type THHN/THWN, in raceway.

B. Class 1 Control Circuits: Type THHN/THWN, copper conductor, in raceway.

C. Class 2 Control Circuits: Power-limited cable, concealed in building finishes.

D. Ampacity: Use 60ºC rating only for sizes #14 AWG through #1 AWG unless otherwise noted.

3.3 INSTALLATION

A. Install wires and cables as indicated, according to manufacturer's written instructions and the NECA "Standard

of Installation."

B. Remove existing wire from raceway before pulling in new wire and cable.

C. Pull conductors into raceway simultaneously where more than one is being installed in same raceway.

1. Use pulling compound or lubricant where necessary; compound used must not deteriorate conductor or

insulation.

2. Use pulling means, including fish tape, cable, rope, and basket-weave wire/cable grips that will not

damage cables or raceway.

D. Install exposed cable, parallel and perpendicular to surfaces or exposed structural members, and follow

surface contours where possible.

E. Conductor Splices: In branch circuits and if kept to minimum. No splices in services or feeders.

1. Install splices and tapes that possess equivalent or better mechanical strength and insulation ratings

than conductors being spliced.

2. Use splice and tap connectors that are compatible with conductor material.

3. Conductor splices/taps in gutters shall be made using “Polaris” type connectors. Taped split-bolt

connections are not acceptable.

4. No conductors shall be spliced within panelboards. Under no circumstances will “wire nuts” be

accepted within any panelboard.

F. Wiring at Outlets: Install with at least 12 inches of slack conductor at each outlet.

G. Connect outlets and components to wiring and to ground as indicated and instructed by manufacturer. Tighten

connectors and terminals, including screws and bolts, according to equipment manufacturer's published

torque-tightening values for equipment connectors. Where manufacturer's torquing requirements are not

indicated, tighten connectors and terminals according to tightening torques specified in UL Standard 486A.




H. In NO case should “Push-in Connectors” (e.g., WAGO Wall-Nuts, IDEAL In-Sure, etc.) be used in any

manner on electrical work performed at the University of New Mexico, without the expressed written consent

of PPD-EESD. The splicing (or joining) together of wires, sizes #10 and smaller should be accomplished

with industry standard twist-on Wirenuts, Butt-Splices, or other NEC acceptable methods. The use of

“Push-in Connectors” is specifically prohibited for “pigtailing” wires in junction and device boxes, as well as

in lighting fixtures, or virtually any other application.

3.4 FIELD QUALITY CONTROL

A. Testing: Upon installation of wires and cables and before electrical circuitry has been energized, demonstrate

product capability and compliance with requirements.

1. Procedures: Perform each visual and mechanical inspection and electrical test stated in NETA

Standard ATS, Section 7.3.1. Certify compliance with test parameters.

B. Correct malfunctioning products at site, where possible, and retest to demonstrate compliance; otherwise,

remove and replace with new units, and retest.

END OF SECTION



\GROUNDING AND BONDING FOR ELECTRICAL SYSTEMS 26 0526 - 1

SECTION 26 0526 - GROUNDING AND BONDING FOR ELECTRICAL SYSTEMS

PART 1 - GENERAL



Division 1 Specifications Sections, apply to this section.

1.2 SUMMARY

A. This Section includes grounding of electrical systems and equipment. Grounding requirements specified

in this Section may be supplemented by special requirements of systems described in other Sections.

1.3 SUBMITTALS

A. Product Data: For each type of product indicated.

B. Qualification Data: For firms and persons specified in ‘Quality Assurance’ Article.


A. Electrical Components, Devices, and Accessories: Listed and labeled as defined in NFPA 70, Article

100, by a testing agency acceptable to authorities having jurisdiction, and marked for intended use.

1. Comply with UL 467.

PART 2 - PRODUCTS

2.1 MANUFACTURERS

A. Available Manufacturers: Subject to compliance with requirements, manufacturers offering products that

may be incorporated into the work include, but are not limited to, the following:

1. Grounding Conductors, Cables, and Connectors:

a. Chance/Hubbell

b. Dossert Corporation

c. Framatome Connectors/Burndy Electrical

d. Ideal Industries, Inc.

e. Ilsco

f. Kearney/Cooper Power Systems

g. Korns: C.C. Korns Co., Division of Robroy Industries

h. O-Z/Gedney Company; a business of the EGS Electrical Group

i. Raco, Inc., Division of Hubbell

j. Thomas & Betts, Electrical




2.2 GROUNDING CONDUCTORS

A. For insulated conductors, comply with Division 26, Section 26 0519, Low-Voltage Electrical Power.

B. Equipment Grounding Conductors: Insulated with green colored insulation.

C. Bare Copper Conductors: Comply with the following:

1. Solid Conductors: ASTM B3.

2. Assembly of Stranded Conductors: ASTM B8.

3. Tinned Conductors: ASTM B33.

D. Copper Bonding Conductors: As follows:

1. Bonding Cable: 28 kcmil, 14 strands of No. 17 AWG copper conductor, 1/4 inch in diameter.

2. Bonding Conductor: No. 4 or No. 6 AWG, stranded copper conductor.

3. Bonding Jumper: Bare copper tape, braided bare copper conductors, terminated with copper

ferrules; 1-5/8 inches wide and 1/16 inch thick.

2.3 CONNECTOR PRODUCTS

A. Comply with IEEE 837 and UL 467; listed for use for specific types, sizes, and combinations of

conductors and connected items.

B. Bolted Connectors: Bolted pressure type connectors, or compression type.

C. Irreversible Compression Connectors: In kit form, selected per manufacturer’s written instructions.

PART 3 - EXECUTION

3.1 APPLICATION

A. Use only copper conductors for both insulated and bare grounding conductors.

B. In raceways, use insulated equipment grounding conductors.

C. Equipment Grounding Conductor Terminations: Use bolted pressure clamps.

3.2 EQUIPMENT GROUNDING CONDUCTORS

A. Comply with NFPA 70, Article 250 for types, sizes, and quantities of equipment grounding conductors,

unless specific types, larger sizes, or more conductors than required by NFPA 70 are indicated.

B. Install insulated equipment grounding conductors in all feeders and circuits.




3.3 INSTALLATION

A. Grounding Conductors: Route along shortest and straightest paths possible, unless otherwise indicated.

Avoid obstructing access or placing conductors where they may be subjected to strain, impact, or damage.

1. Where grounding conductors are required in PVC conduit or bare, do not completely encircle

conduit or conductor with steel clamp or other steel devices.

2. Where grounding conductor is routed in steel conduit, bond both ends of conduit to grounding

conductor with full size conductor.

B. Bonding Straps and Jumpers: Install so vibration by equipment mounted on vibration isolation hangers

and supports is not transmitted to rigidly mounted equipment. Bond straps directly to the basic structure

taking care not to penetrate any adjacent parts. Install straps only in locations accessible for maintenance.

3.4 CONNECTIONS

A. General: Make connections so galvanic action or electrolysis possibility is minimized. Select connectors,

connection hardware, conductors, and connection methods so metals in direct contact will be galvanically

compatible.

1. Use electroplated or hot-tin-coated materials to ensure high conductivity and to make contact

points closer to order of galvanic series.

2. Make connections with clean, bare metal at points of contact.

3. Make aluminum-to-steel connections with stainless steel separators and mechanical clamps.

4. Make aluminum-to-galvanized steel connections with tin plated copper jumpers and mechanical

clamps.

5. Coat and seal connections having dissimilar metals with inert material to prevent future penetration

of moisture to contact surfaces.

B. Equipment Grounding Conductor Terminations: For No. 8 AWG and larger, use pressure type grounding

lugs. No. 10 AWG and smaller grounding conductors may be terminated with winged pressure type

connectors.

C. Non-contact Metal Raceway Terminations: If metallic raceways terminate at metal housings without

mechanical and electrical connection to housing, terminate each conduit with grounding bushing.

Connect grounding bushings with a bare grounding conductor to grounding bus or terminal in housing.

Bond electrically non-continuous conduits at entrances and exits with grounding bushings and bare

grounding conductors, unless otherwise indicated.

D. Tighten screws and bolts for grounding and bonding connectors and terminals according to

manufacturer’s published torque tightening values. If manufacturer’s torque values are not indicated, use

those specified in UL 486A.

E. Compression Type Connections: Use hydraulic compression tools to provide correct circumferential

pressure for compression connectors. Use tools and dies recommended by connector manufacturer.

Provide embossing die code or other standard method to make a visible indication that a connector has

been adequately compressed on grounding conductor.

END OF SECTION



HANGERS AND SUPPORTS FOR ELECTRICAL SYSTEMS 26 0529 - 1

SECTION 26 0529 - HANGERS AND SUPPORTS FOR ELECTRICAL SYSTEMS

PART 1 - GENERAL


A. Drawings and general provisions of Contract, including General and Supplementary Conditions and Division

1 Specification Sections, apply to this Section.

1.2 SUMMARY

A. This Section includes secure support from the building structure for electrical items by means of hangers,

supports, anchors, sleeves, inserts, seals, and associated fastenings.

B. Related Sections: The following Sections contains requirements that relate to this Section:

1. Division 26, Section 26 0500, Common Work Results for Electrical.

2. Division 5, Section Metal Fabrications for requirements for miscellaneous metal items involved in

supports and fastenings.

3. Refer to other Division 26 sections for additional specific support requirements that may be applicable

to specific items.

1.3 SUBMITTALS

A. General: Submit the following in accordance with Conditions of Contract and Division 1 Specification

Sections.

B. Product data for each type of product specified.

1. Hanger and support schedule showing manufacturer's figure number, size, spacing, features, and

application for each required type of hanger, support, sleeve, seal, and fastener to be used.

C. Shop drawings indicating details of fabricated products and materials.


A. Electrical Component Standard: Components and installation shall comply with NFPA 70, National Electrical

Code.

B. Electrical components shall be listed and labeled by UL, ETL, CSA, or other approved, nationally recognized

testing and listing agency that provides third-party certification follow-up services.




PART 2 - PRODUCTS

2.1 MANUFACTURERS

A. Available Manufacturers: Subject to compliance with requirements, manufacturers offering products that may

be incorporated in the work, shall include the following:

1. Slotted Metal Angle and U-Channel Systems:

a. Allied Tube & Conduit

b. American Electric

c. B-Line Systems, Inc.

d. Cinch Clamp Co., Inc.

e. GS Metals Corp.

f. Haydon Corp.

g. Kin-Line, Inc.

h. Unistrut Diversified Products

2.2 COATINGS

A. Coating: Supports, support hardware, and fasteners shall be protected with zinc coating or with treatment of

equivalent corrosion resistance using approved alternative treatment, finish, or inherent material characteristic.

Products for use outdoors shall be hot-dip galvanized.

2.3 MANUFACTURED SUPPORTING DEVICES

A. Raceway Supports: Clevis hangers, riser clamps, conduit straps, threaded C-clamps with retainers, ceiling

trapeze hangers, wall brackets, and spring steel clamps.

B. Fasteners: Types, materials, and construction features as follows:

1. Expansion Anchors: Carbon steel wedge or sleeve type.

2. Toggle Bolts: All steel springhead type.

3. Powder-Driven Threaded Studs: Heat-treated steel, designed specifically for the intended service.

C. Cable Supports for Vertical Conduit: Factory-fabricated assembly consisting of threaded body and insulating

wedging plug for non-armored electrical cables in riser conduits. Provide plugs with number and size of

conductor gripping holes as required to suit individual risers. Construct body of malleable-iron casting with

hot-dip galvanized finish.

D. U-Channel Systems: 16-gauge steel channels, with 9/16-inch-diameter holes, at a minimum of 8 inches on

center, in top surface. Provide fittings and accessories that mate and match with U-channel and are of the

same manufacture.

2.4 FABRICATED SUPPORTING DEVICES

A. General: Shop or field fabricated supports or manufactured supports assembled from U-channel components.

B. Steel Brackets: Fabricated of angles, channels, and other standard structural shapes. Connect with welds and

machine bolts to form rigid supports.




PART 3 - EXECUTION

3.1 INSTALLATION

A. Install supporting devices to fasten electrical components securely and permanently in accordance with NEC

requirements and UBC Seismic Zone 4.

B. Coordinate with the building structural system and with other electrical installation.

C. Raceway Supports: Comply with the NEC and the following requirements:

1. Conform to manufacturer's recommendations for selection and installation of supports.

2. Strength of each support shall be adequate to carry present and future load multiplied by a safety factor

of at least four. Where this determination results in a safety allowance of less than 200 lbs, provide

additional strength until there is a minimum of 200 lbs safety allowance in the strength of each support.

3. Install individual and multiple (trapeze) raceway hangers and riser clamps as necessary to support

raceways. Provide U-bolts, clamps, attachments, and other hardware necessary for hanger assembly

and for securing hanger rods and conduits.

4. Support parallel runs of horizontal raceways together on trapeze-type hangers.

5. Support individual horizontal raceways by separate pipe hangers. Spring steel fasteners may be used

in lieu of hangers only for 1-1/2-inch and smaller raceways serving lighting and receptacle branch

circuits above suspended ceilings only. For hanger rods with spring steel fasteners, use

1/4-inch-diameter or larger threaded steel. Use spring steel fasteners that are specifically designed for

supporting single conduits or tubing.

6. Space supports for raceways in accordance with Table I of this section. Space supports for raceway

types not covered by the above in accordance with NEC.

7. Support exposed and concealed raceway within 1 foot of an unsupported box and access fittings. In

horizontal runs, support at the box and access fittings may be omitted where box or access fittings are

independently supported and raceway terminals are not made with chase nipples or threadless box

connectors.

8. In vertical runs, arrange support so the load produced by the weight of the raceway and the enclosed

conductors is carried entirely by the conduit supports with no weight load on raceway terminals.

D. Vertical Conductor Supports: Install simultaneously with installation of conductors.

E. Miscellaneous Supports: Support miscellaneous electrical components as required to produce the same

structural safety factors as specified for raceway supports. Install metal channel racks for mounting cabinets,

panelboards, disconnects, control enclosures, pull boxes, junction boxes, transformers, and other devices.

F. In open overhead spaces, cast boxes threaded to raceways need not be supported separately except where used

for fixture support; support sheetmetal boxes directly from the building structure or by bar hangers. Where

bar hangers are used, attach the bar to raceways on opposite sides of the box and support the raceway with an

approved type of fastener not more than 24 inches from the box.

G. Fastening: Unless otherwise indicated, fasten electrical items and their supporting hardware securely to the

building structure, including but not limited to conduits, raceways, cables, cable trays, busways, cabinets,

panelboards, transformers, boxes, disconnect switches, and control components in accordance with the

following:

1. Fasten by means of wood screws or screw-type nails on wood, toggle bolts on hollow masonry units,

concrete inserts or expansion bolts on concrete or solid masonry, and machine screws, welded

threaded studs, or spring-tension clamps on steel. Threaded studs driven by a powder charge and

provided with lock washers and nuts may be used instead of expansion bolts and machine or wood




screws. Do not weld conduit, pipe straps, or items other than threaded studs to steel structures. In

partitions of light steel construction, use sheetmetal screws.

2. Holes cut to depth of more than 1-1/2 inches in reinforced concrete beams or to depth of more than 3/4

inch in concrete shall not cut the main reinforcing bars. Fill holes that are not used.

3. Ensure that the load applied to any fastener does not exceed 25 percent of the proof test load. Use

vibration- and shock- resistant fasteners for attachments to concrete slabs.

H. Tests: Test pull-out resistance of one of each type, size, and anchorage material for the following fastener

types:

1. Expansion anchors.

2. Toggle bolts.

3. Powder-driven threaded studs.

I. Provide all jacks, jigs, fixtures, and calibrated indicating scales required for reliable testing. Obtain the

Contracting Officer's approval before transmitting loads to the structure. Test to 90 percent of rated proof

load for fastener. If fastening fails test, revise all similar fastener installations and retest until satisfactory

results are achieved.

3.2 TABLE I: SPACING FOR RACEWAY SUPPORTS

Raceway RMC &

Size, In. Location IMC (1) EMT (1)

1/2-1 Any Location 7 7

1 & Larger Any Location 10 10

NOTES:

(1) Maximum spacing of supports (feet).

(2) Maximum spacings for IMC above apply to straight runs only. Otherwise the maximums for EMT

apply.

Abbreviations: EMT Electrical metallic tubing.

IMC Intermediate metallic conduit.

RMC Rigid metallic conduit.

END OF SECTION



RACEWAYS AND BOXES FOR ELECTRICAL SYSTEMS 26 0533 - 1

SECTION 26 0533 - RACEWAY AND BOXES FOR ELECTRICAL SYSTEMS

PART 1 - GENERAL




1.2 SUMMARY

A. This includes raceways, fittings, boxes, enclosures, and cabinets for electrical wiring.

B. Raceways include the following:

1. Rigid metal conduit.

2. Intermediate metal conduit.

3. Electrical metallic tubing (EMT).

4. Flexible metal conduit.

5. Liquidtight flexible conduit.

C. Boxes, enclosures, and cabinets include the following:

1. Device boxes.

2. Outlet boxes.

3. Pull and junction boxes.

4. Cabinets and hinged cover enclosures.

D. Related Sections: The following Sections contain requirements that relate to this Section:

1. See Division 7, Section Firestopping.

2. See Division 26, Section 26 0529, Hangers and Supports for Electrical Systems.

3. See Division 26, Section 26 2726, Wiring Devices.

1.3 SUBMITTALS

A. General: Submit the following according to the Conditions of the Contract and Division 1 Specification

Sections.

B. Product data for surface raceway, wireway and fittings, hinged cover enclosures, and cabinets.

C. Shop drawings for nonstandard boxes, enclosures, and cabinets. Include layout drawings showing

components and wiring.


A. Comply with NFPA 70, National Electrical Code, for components and installation.




B. Listing and Labeling: Provide products specified in this Section that are listed and labeled.

1. The Terms "Listed and Labeled": As defined in the National Electrical Code, Article 100.

C. Comply with NECA "Standard of Installation."

D. Coordinate layout and installation of raceway and boxes with other construction elements to ensure adequate

headroom, working clearance, and access.

PART 2 - PRODUCTS

2.1 MANUFACTURERS

A. Manufacturers: Subject to compliance with requirements, provide Products by of one of the following:

1. Metal Conduit and Tubing:

a. Monogram Co., AFC.

b. Alflex Corp.

c. Allied Tube and Conduit, Grinnell Co.

d. Anamet, Inc., Anaconda Metal Hose.

e. Carol Cable Co., Inc.

f. Cole-Flex Corp.

g. Flexcon, Inc., Coleman Cable Systems, Inc.

h. Triangle PWC, Inc.

i. Wheatland Tube Co.

2. Conduit Bodies and Fittings:

a. Scott Fetzer Company, Adalet-PLM.

b. American Electric, Construction Materials Group.

c. Emerson Electric Co., Appleton Electric Co.

d. Hubbell, Inc., Killark Electric Manufacturing Co.

e. General Signal, O-Z/Gedney Unit.

f. Spring City Electrical Manufacturing Co.

3. Boxes, Enclosures, and Cabinets:

a. Scott Fetzer Company, Adalet-PLM.

b. Cooper Industries, Midwest Electric.

c. American Electric, FL Industries.

d. Hoffman Engineering Co., Federal-Hoffman, Inc.

e. Hubbell Inc., Killark Electric Manufacturing Co.

f. General Signal, O-Z/Gedney.

g. Raco, Inc., Hubbell Inc.

h. Robroy Industries, Inc., Electrical Division.

i. Spring City Electrical Manufacturing Co.

j. Square D Co.

k. Thomas & Betts Corp.




2.2 METAL CONDUIT AND TUBING

A. Rigid Steel Conduit: ANSI C80.1.

B. Intermediate Metal Conduit: ANSI C80.6.

C. Plastic-Coated Steel Conduit and Fittings: NEMA RN 1.

D. Plastic-Coated Intermediate Metal Conduit and Fittings: NEMA RN 1.

E. Electrical Metallic Tubing and Fittings: ANSI C80.3 with set-screw or compression-type fittings.

F. Flexible Metal Conduit: Zinc-coated steel.

G. Liquidtight Flexible Metal Conduit: Flexible steel conduit with PVC jacket.

H. Fittings: NEMA FB 1, compatible with conduit/tubing materials.

2.3 OUTLET AND DEVICE BOXES

A. Sheet Metal Boxes: NEMA OS 1.

B. Cast Metal Boxes: NEMA FB 1, type FD, cast feralloy box with gasketed cover.

2.4 PULL AND JUNCTION BOXES

A. Small Sheet Metal Boxes: NEMA OS 1.

B. Cast Metal Boxes: NEMA FB 1, cast aluminum with gasketed cover.

2.5 CABINETS AND ENCLOSURES

A. Hinged Cover Enclosures: NEMA 250, steel enclosure with continuous hinge cover and flush latch. Finish

inside and out with manufacturer's standard enamel.

B. Cabinets: NEMA 250, type 1, galvanized steel box with removable interior panel and removable front,

finished inside and out with manufacturer's standard enamel. Hinged door in front cover with flush latch and

concealed hinge. Key latch to match panelboards. Include metal barriers to separate wiring of different

systems and voltage, and include accessory feet where required for freestanding equipment.

PART 3 - EXECUTION

3.1 EXAMINATION

A. Examine surfaces to receive raceways, boxes, enclosures, and cabinets for compliance with installation

tolerances and other conditions affecting performance of the raceway system. Do not proceed with

installation until unsatisfactory conditions have been corrected.




3.2 WIRING METHODS

A. Outdoors: Use the following wiring methods, 3/4” minimum trade size:

1. Exposed: Rigid or intermediate metal conduit.

2. Concealed: Rigid or intermediate metal conduit.

3. Connection to Vibrating Equipment (including transformers and hydraulic, pneumatic, or electric

solenoid or motor-driven equipment): Liquidtight flexible metal conduit.

4. Boxes and Enclosures: NEMA Type 3R or Type 4.

B. Indoors: Use the following wiring methods, 3/4" minimum trade size except as noted below:

1. Connection to Vibrating Equipment and Light Fixtures: (including transformers and hydraulic,

pneumatic, or electric solenoid or motor-driven equipment): Flexible metal conduit, except in wet or

damp locations use Liquidtight flexible metal conduit, 1/2" trade size minimum. Six foot maximum

length.

2. Connection to Light Fixtures: 1/2” trade size minimum, 6’ maximum length, flexible metal conduit,

except in wet or damp locations use Liquidtight flexible metal conduit, or solid connection using

material conforming to requirements for materials specified in this Paragraph B.

3. Damp or Wet Locations: Rigid steel conduit.

4. Exposed: Electrical metallic tubing.

5. Locations Subject to Physical Damage: Rigid or intermediate steel conduit.

6. Concealed: Electrical metallic tubing.

7. Boxes and Enclosures: NEMA Type 1, except in damp or wet locations use NEMA Type 4, stainless

steel.

3.3 INSTALLATION

A. Install raceways, boxes, enclosures, and cabinets as indicated, according to manufacturer's written instructions.

B. Conceal conduit and EMT, unless otherwise indicated, within finished walls, ceilings, and floors.

C. Keep raceways at least 6 inches away from parallel runs of flues and steam or hot water pipes. Install

horizontal raceway runs above water and steam piping.

D. Install raceways level and square and at proper elevations. Provide adequate headroom.

E. Complete raceway installation before starting conductor installation. The ends of all conduits containing

wires of any type, shall be bushed.

F. Support raceway as specified in Division 26, Section 26 0529, Hangers and Supports for Electrical Systems.

G. Use temporary closures to prevent foreign matter from entering raceway.

H. Make bends and offsets so the inside diameter is not reduced. Unless otherwise indicated, keep the legs of a

bend in the same plane and the straight legs of offsets parallel.

I. Use raceway fittings compatible with raceway and suitable for use and location. For intermediate steel

conduit, use threaded rigid steel conduit fittings, except as otherwise indicated. For EMT, use only steel

compression type (gland & ring) fittings.

J. Run concealed raceways with a minimum of bends in the shortest practical distance considering the type of

building construction and obstructions, except as otherwise indicated.




K. Install exposed raceways parallel to or at right angles to nearby surfaces or structural members, and follow the

surface contours as much as practical.

1. Run parallel or banked raceways together, on common supports where practical.

2. Make bends in parallel or banked runs from same center line to make bends parallel. Use factory

elbows only where they can be installed parallel; otherwise, provide field bends for parallel raceways.

L. Join raceways with fittings designed and approved for the purpose and make joints tight.

1. Make raceway terminations tight. Use bonding bushings or wedges at connections subject to

vibration. Use bonding jumpers where joints cannot be made tight.

2. Use insulating bushings to protect conductors.

M. Terminations: Where raceways are terminated with locknuts and bushings, align the raceway to enter

squarely, and install the locknuts with dished part against the box. Where terminations cannot be made secure

with one locknut, use two locknuts, one inside and one outside the box.

N. Where terminating in threaded hubs, screw the raceway or fitting tight into the hub so the end bears against the

wire protection shoulder. Where chase nipples are used, align the raceway so the coupling is square to the

box, and tighten the chase nipple so no threads are exposed.

O. Install pull wires in empty raceways. Use No. 14 AWG zinc-coated steel or monofilament plastic line having

not less than 200-lb tensile strength. Leave not less than 12 inches of slack at each end of the pull wire.

P. Signal System Raceways 2-Inch Trade Size and Smaller: In addition to the above requirements, install in

maximum lengths of 150 feet and with a maximum of two 90-deg bends or equivalent. Install pull or junction

boxes where necessary to comply with these requirements.

Q. Install raceway sealing fittings according to the manufacturer's written instructions. Locate fittings at suitable,

approved, accessible locations and fill them with UL-listed sealing compound. For concealed raceways,

install each fitting in a flush steel box with a blank cover plate having a finish similar to that of adjacent plates

or surfaces. Install raceway sealing fittings at the following points and elsewhere as indicated:

1. Where conduits pass from warm locations to cold locations, such as the boundaries of refrigerated

spaces and air-conditioned spaces.

2. Where otherwise required by the NEC.

R. Flexible Connections: Use maximum of 6 feet of flexible conduit for recessed and semi-recessed lighting

fixtures; for equipment subject to vibration, noise transmission, or movement; and for all motors. Use

Liquidtight flexible conduit in wet or damp locations. Install separate ground conductor across flexible

connections.

S. Provide grounding connections for raceway, boxes, and components as indicated and instructed by

manufacturer. Tighten connectors and terminals, including screws and bolts, according to equipment

manufacturer's published torque-tightening values for equipment connectors. Where manufacturer's torquing

requirements are not indicated, tighten connectors and terminals according to tightening torques specified in

UL Standard 486A.

T. On all feeder and branch circuit conduits, 2-inches and larger, install grounding-type insulated bushings on

each conduit entering all boxes, enclosures, and equipment. Bond conduit grounding bushing to a grounding

bus in box, enclosure, or equipment with conductor sized per NEC 250-95. Do not use grounding conductor

to bond bushing to grounding bus.




U. All exposed conduit, fittings, boxes, hangers, clips, supports, etc., in finished areas to be painted per the

Architect's/Engineer's instructions.

3.4 PROTECTION

A. Provide final protection and maintain conditions, in a manner acceptable to manufacturer and Installer, to

ensure that coatings, finishes, and cabinets are without damage or deterioration at Substantial Completion.

1. Repair damage to galvanized finishes with zinc-rich paint recommended by manufacturer.

2. Repair damage to PVC or paint finishes with matching touch-up coating recommended by the

manufacturer.

3.5 CLEANING

A. Upon completion of installation of system, including outlet fittings and devices, inspect exposed finish.

Remove burrs, dirt, and construction debris and repair damaged finish, including chips, scratches, and

abrasions.

END OF SECTION



IDENTIFICATION FOR ELECTRICAL SYSTEMS 26 0553 - 1

SECTION 26 0553 - IDENTIFICATION FOR ELECTRICAL SYSTEMS

PART 1 - GENERAL




1.2 SUMMARY

A. This Section includes identification of electrical materials, equipment, and installations.

1.3 SUBMITTALS

A. General: Submit each item in this Article according to the Conditions of the Contract and Division 1

Specification Sections.

B. Product Data for each type of product specified.

C. Schedule of identification nomenclature to be used for identification signs and labels.

D. Samples for each color, lettering style, and other graphic representation required for identification materials;

samples of labels and signs.

E. Details of EIA/TIA 606 compliance for labeling.


A. Comply with NFPA 70.

B. Comply with EIA/TIA 606 for telephone, data, and fiber optic systems.

1.5 SEQUENCING AND SCHEDULING

A. Coordinate installing electrical identification after completion of finishing where identification is applied to

field-finished surfaces.

B. Coordinate installing electrical identifying devices and markings prior to installing acoustical ceilings and

similar finishes that conceal such items.




PART 2 - PRODUCTS

2.1 MANUFACTURERS

A. Manufacturers: Subject to compliance with requirements, provide products by one of the following:

1. American Labelmark Co.; Labelmaster Subsidiary

2. Brady USA, Inc.; Industrial Products Div.

3. Ideal Industries, Inc.

4. Markal Corp.

5. National Band & Tag Co.

6. Panduit Corp.

7. Seton Name Plate Co.

8. Standard Signs, Inc.

2.2 RACEWAY AND CABLE LABELS

A. Manufacturer's Standard Products: Where more than one type is listed for a specified application, selection is

Installer's option, but provide single type for each application category. Use colors prescribed by

ANSI A13.1, NFPA 70, and these Specifications.

B. Conform to ANSI A13.1, Table 3, for minimum size of letters for legend and minimum length of color field

for each raceway or cable size.

1. Color: Black legend on orange field.

2. Legend: Indicates voltage and service.

C. Adhesive Labels: Preprinted, flexible, self-adhesive vinyl. Legend is over-laminated with a clear, weather-

and chemical-resistant coating.

D. Pre-tensioned, Wraparound Plastic Sleeves: Flexible, preprinted, color-coded, acrylic bands sized to suit the

diameter of the line it identifies and arranged to stay in place by pre-tensioned gripping action when placed in

position.

E. Colored Adhesive Tape: Self-adhesive vinyl tape not less than 3 mils thick by 1 to 2 inches wide.

F. Tape Markers: Vinyl or vinyl-cloth, self-adhesive, wraparound type with preprinted numbers and letters.

G. Aluminum, Wraparound Marker Bands: Bands cut from 0.014-inch thick aluminum sheet, with stamped or

embossed legend, and fitted with slots or ears for permanently securing around wire or cable jacket or around

groups of conductors.

H. Plasticized Card-Stock Tags: Vinyl cloth with preprinted and field-printed legends. Orange background,

except as otherwise indicated, with eyelet for fastener.

I. Aluminum-Faced Card-Stock Tags: Weather-resistant, 18-point minimum card stock faced on both sides with

embossable aluminum sheet, 0.002 inch thick, laminated with moisture-resistant acrylic adhesive, and

punched for the fastener. Preprinted legends suit each application.

J. Brass or Aluminum Tags: Metal tags with stamped legend, punched for fastener. Dimensions: 2 by 2 inches

by 0.05 inch.




K. Non-detectable Underground Line Warning Tape: Permanent, bright-colored, continuous-printed, vinyl tape

with the following features:

1. Size: Not less than 6 inches wide by 4-6 mils thick.

2. Compounded for permanent direct-burial service.

3. Color Background: Conforming to APWA color code standards.

4. Black Printed Legend: Indicates type of underground line.

L. Detectable Underground Line Warning Tape: Permanent, bright-colored, continuous-printed, vinyl tape with

the following features:

1. Size: Not less than 6 inches wide by 4-6 mils thick.

2. Compounded for permanent direct-burial service.

3. Aluminum foil core or stainless steel tracer wires laminated between multiple layers of polyethylene

tape.

4. Color Background: Conforming to APWA color code standards.

5. Black Printed Legend: Indicates type of underground line

2.3 ENGRAVED NAMEPLATES AND SIGNS

A. Manufacturer's Standard Products: Where more than one type is listed for a specified application, selection is

Installer's option, but provide single type for each application category. Use colors prescribed by

ANSI A13.1, NFPA 70, and these Specifications.

B. Engraving stock, melamine plastic laminate, 1/16-inch minimum thick for signs up to 20 sq. in., 1/8 inch thick

for larger sizes.

1. Engraved Legend:

a. Normal Power – White letters on black face, unless noted otherwise on drawings.

2. Punched for mechanical fasteners.

C. Baked-Enamel Signs for Interior Use: Preprinted aluminum signs, punched for fasteners, with colors, legend,

and size as indicated or as otherwise required for the application. 1/4-inch grommets in corners for mounting.

D. Fasteners for Plastic-Laminated and Metal Signs: Self-tapping stainless-steel screws or No. 10/32 stainless-

steel machine screws with nuts and flat and lock washers.

2.4 MISCELLANEOUS IDENTIFICATION PRODUCTS

A. Cable Ties: Fungus-inert, self-extinguishing, 1-piece, self-locking, Type 6/6 nylon cable ties with the

following features:

1. Minimum Width: 3/16 inch.

2. Tensile Strength: 50 lb minimum.

3. Temperature Range: Minus 40 to 185 deg F (Minus 4 to 85 deg C).

4. Color: As indicated where used for color coding.

B. Paint: Alkyd-urethane enamel over primer as recommended by enamel manufacturer.




PART 3 - EXECUTION

3.1 INSTALLATION

A. Install identification devices according to manufacturer's written instructions.

B. Install labels where indicated and at locations for best convenience of viewing without interference with

operation and maintenance of equipment.

C. Lettering, Colors, and Graphics: Coordinate names, abbreviations, colors, and other designations used for

electrical identification with corresponding designations used in the Contract Documents or required by codes

and standards. Use consistent designations throughout the Project.

D. Sequence of Work: Where identification is to be applied to surfaces that require finish, install identification

after completion of finish work.

E. Self-Adhesive Identification Products: Clean surfaces of dust, loose material, and oily films before applying.

F. Install painted identification as follows:

1. Clean surfaces of dust, loose material, and oily films before painting.

2. Prime Surfaces: For galvanized metal, use single-component, acrylic vehicle coating formulated for

galvanized surfaces. For concrete masonry units, use heavy-duty, acrylic-resin block filler. For

concrete surfaces, use clear, alkali-resistant, alkyd binder-type sealer.

3. Apply one intermediate and one finish coat of silicone alkyd enamel.

4. Apply primer and finish materials according to manufacturer's instructions.

G. Identify Raceways and Exposed Cables with Color Banding: Band exposed and accessible raceways of the

systems listed below for identification.

1. Bands: Pre-tensioned, snap-around, colored plastic sleeves; colored adhesive tape; or a combination

of both. Make each color band 2 inches wide, completely encircling conduit, and place adjacent bands

of 2-color markings in contact, side by side.

2. Locate bands at changes in direction, at penetrations of walls and floors, at 20-foot maximum intervals

in straight runs, and at 10 feet in congested areas.

3. Colors: As follows:

a. 120/208 Volt – Black.

b. 277/480 Volt – Blue.

c. Telecommunications System: Green and yellow.

H. Install Circuit Identification Labels on Boxes: Label externally as follows:

1. Exposed Boxes: Pressure-sensitive, self-adhesive plastic label on cover.

2. Concealed Boxes: Plasticized card-stock tags.

3. Labeling Legend: Permanent, waterproof listing of panel and circuit number or equivalent.




I. Color-Code Conductors: Secondary service, feeder, and branch circuit conductors throughout the secondary

electrical system.

1. 208/120-V System: As follows:

a. Phase A: Black

b. Phase B: Red

c. Phase C: Blue

d. Neutral: White

e. Ground: Green

2. 480/277-V System: As follows:

a. Phase A: Brown

b. Phase B: Orange

c. Phase C: Yellow

d. Neutral: Grey

e. Ground: Green

3. Factory-apply color the entire length of the conductors, except the following field-applied, color-

coding methods may be used in lieu of factory-coded wire for phase conductor's sizes larger than

No. 10 AWG and grounded conductors and grounding conductors larger than No. 6 AWG.

a. Colored, pressure-sensitive plastic tape in half-lapped turns for a distance of 6 inches from

terminal points and in boxes where splices or taps are made. Apply the last 2 turns of tape with

no tension to prevent possible unwinding. Use 1-inch wide tape in colors as specified. Adjust

tape bands to avoid obscuring cable identification markings.

b. Colored cable ties applied in groups of 3 ties of specified color to each wire at each terminal or

splice point starting 3 inches from the terminal and spaced 3 inches apart. Apply with a special

tool or pliers, tighten to a snug fit, and cut off excess length.

J. Power Circuit Identification: Use metal tags or aluminum wraparound marker bands for cables, feeders, and

power circuits in vaults, pull boxes, junction boxes, manholes, and switchboard rooms.

1. Legend: 1/4-inch steel letter and number stamping or embossing with legend corresponding to

indicated circuit designations.

2. Fasten tags with nylon cable ties; fasten bands using integral ears.

K. Apply identification to conductors as follows:

1. Conductors to Be Extended in the Future: Indicate source and circuit numbers.

2. Multiple Power or Lighting Circuits in the Same Enclosure: Identify each conductor with source,

voltage, circuit number, and phase. Use color coding for voltage and phase indication of secondary

circuit.

3. Multiple Control and Communications Circuits in the Same Enclosure: Identify each conductor by its

system and circuit designation. Use a consistent system of tags, color coding, or cable marking tape.

L. Apply warning, caution, and instruction signs and stencils as follows:

1. Install warning, caution, and instruction signs where indicated or required to ensure safe operation and

maintenance of electrical systems and of items to which they connect. Install engraved, plastic-

laminated instruction signs with approved legend where instructions or explanations are needed for

system or equipment operation. Install butyrate signs with metal backing for outdoor items.




M. Install identification as follows:

1. Apply equipment identification labels of engraved plastic laminate on each major unit of equipment,

including central or master unit of each system. This includes communication, signal, and alarm

systems, unless units are specified with their own self-explanatory identification. Except as otherwise

indicated, provide a single line of text with 1/2-inch high lettering on 1-1/2-inch high label; where 2

lines of text are required, use lettering 2 inches high. Use white lettering on black field. Apply labels

for each unit of the following categories of equipment.

Example: Panel 1H1 120/208V, 3-PH, 4-wire fed from panel MDR-CCT#4.

a. Panelboards, electrical cabinets, and enclosures.

b. Access doors and panels for concealed electrical items.

c. Contactors.

d. Control devices.

e. Switches and receptacles.

2. Circuits: Apply identification labels of engraved plastic laminate on each switch and receptacle

indicating panelboard and circuit number supplying switch or receptacle.

3. Apply designation labels of engraved plastic laminate for disconnect switches, breakers, push buttons,

pilot lights, motor control centers, and similar items for power distribution and control components

above, except panelboards and alarm/signal components where labeling is specified elsewhere. For

panelboards, provide framed, typed circuit schedules with explicit description and identification of

items controlled by each individual breaker.

N. In NO case should the wire designation in an existing circuit be changed without the expressed written consent

of PPD-EESD. Remodel work that requires converting an existing circuit from one voltage to another, should

have the existing wires removed and correctly color coded wires re-installed. In the very rare instance where

the existing wires are to be reused, wires that have had their designation changed (i.e. an existing “hot”

converted to a “neutral”) will have their entire exposed length taped with the new appropriate color.

Additionally, the altered conductor will be taped with the new color not only at its source and end device, but

at every accessible point along the circuit. This includes but it not limited to; pull boxes, conduits, device

boxes, gutters, panels, and anywhere else that the altered circuit can be accessed.

END OF SECTION



OVERCURRENT PROTECTIVE DEVICE COORDINATION STUDY 26 0573 - 1

SECTION 26 0573 - OVERCURRENT PROTECTIVE DEVICE COORDINATION STUDY

PART 1 - GENERAL




1.2 SUMMARY

A. This Section includes computer-based, fault-current and overcurrent protective device coordination

studies. Protective devices shall be set based on results of the protective device coordination study.

1. Coordination of series-rated devices is permitted where indicated on Drawings.

1.3 ACTION SUBMITTALS

A. Product Data: For computer software program to be used for studies.

B. Other Action Submittals: The following submittals shall be made after the approval process for system

protective devices has been completed. Submittals shall be in digital form.

1. Coordination-study input data, including completed computer program input data sheets.

2. Study and Equipment Evaluation Reports.

3. Coordination-Study Report.

1.4 INFORMATIONAL SUBMITTALS

A. Qualification Data: For coordination-study specialist.

B. Product Certificates: For coordination-study and fault-current-study computer software programs,

certifying compliance with IEEE 399.


A. Studies shall use computer programs that are distributed nationally and are in wide use. Software

algorithms shall comply with requirements of standards and guides specified in this Section. Manual

calculations are not acceptable.

B. Coordination-Study Specialist Qualifications: An entity experienced in the application of computer

software used for studies, having performed successful studies of similar magnitude on electrical

distribution systems using similar devices.

1. Professional engineer, licensed in the state where Project is located, shall be responsible for the

study. All elements of the study shall be performed under the direct supervision and control of

engineer.




C. Comply with IEEE 242 for short-circuit currents and coordination time intervals.

D. Comply with IEEE 399 for general study procedures.

PART 2 - PRODUCTS

2.1 COMPUTER SOFTWARE DEVELOPERS

A. Available Computer Software Developers: Subject to compliance with requirements, companies offering

computer software programs that may be used in the Work include, but are not limited to, the following:

B. Computer Software Developers: Subject to compliance with requirements, provide products by one of the

following:

C. Basis-of-Design Product: Subject to compliance with requirements, available software developers

offering software that may be used for the Work include, but are not limited to, the following:

1. CGI CYME.

2. EDSA Micro Corporation.

3. ESA Inc.

4. Operation Technology, Inc.

5. SKM Systems Analysis, Inc.

2.2 COMPUTER SOFTWARE PROGRAM REQUIREMENTS

A. Comply with IEEE 399.

B. Analytical features of fault-current-study computer software program shall include "mandatory," "very

desirable," and "desirable" features as listed in IEEE 399.

C. Computer software program shall be capable of plotting and diagramming time-current-characteristic

curves as part of its output. Computer software program shall report device settings and ratings of all

overcurrent protective devices and shall demonstrate selective coordination by computer-generated, time-

current coordination plots.

1. Optional Features:

a. Arcing faults.

b. Simultaneous faults.

c. Explicit negative sequence.

d. Mutual coupling in zero sequence.

PART 3 - EXECUTION

3.1 EXAMINATION

A. Examine Project overcurrent protective device submittals for compliance with electrical distribution

system coordination requirements and other conditions affecting performance. Devices to be coordinated

are indicated on Drawings.




1. Proceed with coordination study only after relevant equipment submittals have been assembled.

Overcurrent protective devices that have not been submitted and approved prior to coordination

study may not be used in study.

3.2 POWER SYSTEM DATA

A. Gather and tabulate the following input data to support coordination study:

1. Product Data for overcurrent protective devices specified in other electrical Sections and involved

in overcurrent protective device coordination studies. Use equipment designation tags that are

consistent with electrical distribution system diagrams, overcurrent protective device submittals,

input and output data, and recommended device settings.

2. Impedance of utility service entrance.

3. Electrical Distribution System Diagram: In hard-copy and electronic-copy formats, showing the

following:

a. Circuit-breaker and fuse-current ratings and types.

b. Relays and associated power and current transformer ratings and ratios.

c. Transformer kilovolt amperes, primary and secondary voltages, connection type,

impedance, and X/R ratios.

d. Generator kilovolt amperes, size, voltage, and source impedance.

e. Cables: Indicate conduit material, sizes of conductors, conductor material, insulation, and

length.

f. Busway ampacity and impedance.

g. Motor horsepower and code letter designation according to NEMA MG 1.

4. Data sheets to supplement electrical distribution system diagram, cross-referenced with tag

numbers on diagram, showing the following:

a. Special load considerations, including starting inrush currents and frequent starting and

stopping.

b. Transformer characteristics, including primary protective device, magnetic inrush current,

and overload capability.

c. Motor full-load current, locked rotor current, service factor, starting time, type of start, and

thermal-damage curve.

d. Generator thermal-damage curve.

e. Ratings, types, and settings of utility company's overcurrent protective devices.

f. Special overcurrent protective device settings or types stipulated by utility company.

g. Time-current-characteristic curves of devices indicated to be coordinated.

h. Manufacturer, frame size, interrupting rating in amperes rms symmetrical, ampere or

current sensor rating, long-time adjustment range, short-time adjustment range, and

instantaneous adjustment range for circuit breakers.

i. Manufacturer and type, ampere-tap adjustment range, time-delay adjustment range,

instantaneous attachment adjustment range, and current transformer ratio for overcurrent

relays.

j. Panelboards, switchboards, motor-control center ampacity, and interrupting rating in

amperes rms symmetrical.




3.3 FAULT-CURRENT STUDY

A. Calculate the maximum available short-circuit current in amperes rms symmetrical at circuit-breaker

positions of the electrical power distribution system. The calculation shall be for a current immediately

after initiation and for a three-phase bolted short circuit at each of the following:

1. Switchgear and switchboard bus.

2. Medium-voltage controller.

3. Motor-control center.

4. Distribution panelboard.

5. Branch circuit panelboard.

B. Study electrical distribution system from normal and alternate power sources throughout electrical

distribution system for Project. Include studies of system-switching configurations and alternate

operations that could result in maximum fault conditions.

C. Calculate momentary and interrupting duties on the basis of maximum available fault current.

D. Calculations to verify interrupting ratings of overcurrent protective devices shall comply with IEEE 241

and IEEE 242.

1. Transformers:

a. ANSI C57.12.10.

b. ANSI C57.12.22.

c. ANSI C57.12.40.

d. IEEE C57.12.00.

e. IEEE C57.96.

2. Medium-Voltage Circuit Breakers: IEEE C37.010.

3. Low-Voltage Circuit Breakers: IEEE 1015 and IEEE C37.20.1.

4. Low-Voltage Fuses: IEEE C37.46.

E. Study Report:

1. Show calculated X/R ratios and equipment interrupting rating (1/2-cycle) fault currents on

electrical distribution system diagram.

2. Show interrupting (5-cycle) and time-delayed currents (6 cycles and above) on medium- voltage

breakers as needed to set relays and assess the sensitivity of overcurrent relays.

F. Equipment Evaluation Report:

1. For 600-V overcurrent protective devices, ensure that interrupting ratings are equal to or higher

than calculated 1/2-cycle symmetrical fault current.

2. For devices and equipment rated for asymmetrical fault current, apply multiplication factors listed

in the standards to 1/2-cycle symmetrical fault current.

3. Verify adequacy of phase conductors at maximum three-phase bolted fault currents; verify

adequacy of equipment grounding conductors and grounding electrode conductors at maximum

ground-fault currents. Ensure that short-circuit withstand ratings are equal to or higher than

calculated 1/2-cycle symmetrical fault current.




3.4 COORDINATION STUDY

A. Perform coordination study using approved computer software program. Prepare a written report using

results of fault-current study. Comply with IEEE 399.

1. Calculate the maximum and minimum 1/2-cycle short-circuit currents.

2. Calculate the maximum and minimum interrupting duty (5 cycles to 2 seconds) short-circuit

currents.

3. Calculate the maximum and minimum ground-fault currents.

B. Comply with IEEE 242 recommendations for fault currents and time intervals.

C. Transformer Primary Overcurrent Protective Devices:

1. Device shall not operate in response to the following:

a. Inrush current when first energized.

b. Self-cooled, full-load current or forced-air-cooled, full-load current, whichever is specified

for that transformer.

c. Permissible transformer overloads according to IEEE C57.96 if required by unusual

loading or emergency conditions.

2. Device settings shall protect transformers according to IEEE C57.12.00, for fault currents.

D. Motors served by voltages more than 600 V shall be protected according to IEEE 620.

E. Conductor Protection: Protect cables against damage from fault currents according to ICEA P-32-382,

ICEA P-45-482, and conductor melting curves in IEEE 242. Demonstrate that equipment withstands the

maximum short-circuit current for a time equivalent to the tripping time of the primary relay protection or

total clearing time of the fuse. To determine temperatures that damage insulation, use curves from cable

manufacturers or from listed standards indicating conductor size and short-circuit current.

F. Coordination-Study Report: Prepare a written report indicating the following results of coordination

study:

1. Tabular Format of Settings Selected for Overcurrent Protective Devices:

a. Device tag.

b. Relay-current transformer ratios; and tap, time-dial, and instantaneous-pickup values.

c. Circuit-breaker sensor rating; and long-time, short-time, and instantaneous settings.

d. Fuse-current rating and type.

e. Ground-fault relay-pickup and time-delay settings.

2. Coordination Curves: Prepared to determine settings of overcurrent protective devices to achieve

selective coordination. Graphically illustrate that adequate time separation exists between devices

installed in series, including power utility company's upstream devices. Prepare separate sets of

curves for the switching schemes and for emergency periods where the power source is local

generation. Show the following information:

a. Device tag.

b. Voltage and current ratio for curves.

c. Three-phase and single-phase damage points for each transformer.

d. No damage, melting, and clearing curves for fuses.




e. Cable damage curves.

f. Transformer inrush points.

g. Maximum fault-current cutoff point.

G. Completed data sheets for setting of overcurrent protective devices.

END OF SECTION



OVERCURRENT PROTECTIVE DEVICE ARC-FLASH STUDY 26 0574 - 1

SECTION 26 0574 - OVERCURRENT PROTECTIVE DEVICE ARC-FLASH STUDY

PART 1 - GENERAL

1.1 SUMMARY

A. Section includes a computer-based, arc-flash study to determine the arc-flash hazard distance and the

incident energy to which personnel could be exposed during work on or near electrical equipment.

1.2 ACTION SUBMITTALS

A. Product Data: For computer software program to be used for studies.

B. Other Action Submittals: Submit the following submittals after the approval of system protective devices

submittals. Submittals shall be in digital form.

1. Arc-flash study input data, including completed computer program input data sheets.

2. Arc-flash study report; signed, dated, and sealed by a qualified professional engineer.

a. Submit study report for action prior to receiving final approval of the distribution

equipment submittals. If formal completion of studies will cause delay in equipment

manufacturing, obtain approval from Architect for preliminary submittal of sufficient study

data to ensure that the selection of devices and associated characteristics is satisfactory.

1.3 INFORMATIONAL SUBMITTALS

A. Qualification Data: For Arc-Flash Study Specialist.

B. Product Certificates: For arc-flash hazard analysis software, certifying compliance with IEEE 1584 and

NFPA 70E.

1.4 CLOSEOUT SUBMITTALS

A. Maintenance procedures according to requirements in NFPA 70E shall be provided in the equipment

manuals.

B. Operation and Maintenance Procedures: In addition to items specified in Section 017823 "Operation and

Maintenance Data," provide maintenance procedures for use by Owner's personnel that comply with

requirements in NFPA 70E.


A. Studies shall use computer programs that are distributed nationally and are in wide use. Software

algorithms shall comply with requirements of standards and guides specified in this Section. Manual

calculations are unacceptable.




B. Arc-Flash Study Software Developer Qualifications: An entity that owns and markets computer software

used for studies, having performed successful studies of similar magnitude on electrical distribution

systems using similar devices.

1. The computer program shall be developed under the charge of a licensed professional engineer

who holds IEEE Computer Society's Certified Software Development Professional certification.

C. Arc-Flash Study Specialist Qualifications: Professional engineer in charge of performing the study,

analyzing the arc flash, and documenting recommendations, licensed in the state where Project is located.

All elements of the study shall be performed under the direct supervision and control of this professional

engineer.

D. Field Adjusting Agency Qualifications: An independent agency, with the experience and capability to

adjust overcurrent devices and to conduct the testing indicated, that is a member company of the

InterNational Electrical Testing Association or is a nationally recognized testing laboratory (NRTL) as

defined by OSHA in 29 CFR 1910.7, and that is acceptable to authorities having jurisdiction.

PART 2 - PRODUCTS

2.1 COMPUTER SOFTWARE DEVELOPERS

A. Software Developers: available software developers offering software that may be used for the Work

include, but are not limited to, the following:

1. ESA Inc.

2. Operation Technology, Inc.

3. Power Analytics, Corporation.

4. SKM Systems Analysis, Inc.

B. Comply with IEEE 1584 and NFPA 70E.

C. Analytical features of device coordination study computer software program shall have the capability to

calculate mandatory features as listed in IEEE 399.

2.2 SHORT-CIRCUIT STUDY REPORT CONTENT

A. Executive summary.

B. Study descriptions, purpose, basis and scope.

C. One-line diagram, showing the following:

1. Protective device designations and ampere ratings.

2. Cable size and lengths.

3. Transformer kilovolt ampere (kVA) and voltage ratings.

4. Motor and generator designations and kVA ratings.

5. Switchgear, switchboard, motor-control center and panelboard designations.

D. Study Input Data: As described in "Power System Data" Article.




E. Short-Circuit Study Output:

1. Interrupting Duty Report: Three-phase and unbalanced fault calculations, showing the following

for each overcurrent device location:

a. Voltage.

b. Calculated symmetrical fault-current magnitude and angle.

c. Fault-point X/R ratio.

d. No AC Decrement (NACD) ratio.

e. Equivalent impedance.

f. Multiplying factors for 2-, 3-, 5-, and 8-cycle circuit breakers rated on a symmetrical basis.

g. Multiplying factors for 2-, 3-, 5-, and 8-cycle circuit breakers rated on a total basis.

F. Incident Energy and Flash Protection Boundary Calculations:

1. Arcing fault magnitude.

2. Protective device clearing time.

3. Duration of arc.

4. Arc-flash boundary.

5. Working distance.

6. Incident energy.

7. Hazard risk category.

8. Recommendations for arc-flash energy reduction.

G. Fault study input data, case descriptions, and fault-current calculations including a definition of terms and

guide for interpretation of the computer printout.

PART 3 - EXECUTION

3.1 EXAMINATION

A. Examine Project overcurrent protective device submittals. Proceed with arc-flash study only after

relevant equipment submittals have been assembled. Overcurrent protective devices that have not been

submitted and approved prior to arc-flash study may not be used in study.

3.2 SHORT-CIRCUIT STUDY

A. Perform study following the general study procedures contained in IEEE 399.

B. Calculate short-circuit currents according to IEEE 551.

C. Base study on the device characteristics supplied by device manufacturer.

D. The extent of the electrical power system to be studied is indicated on Drawings.

E. Begin analysis at the service, extending down to the system overcurrent protective devices as follows:

1. To normal system low-voltage load buses where fault current is 10 kA or less.

2. Exclude equipment rated 240-V ac or less when supplied by a single transformer rated less than 75

kVA.




F. Study electrical distribution system from normal and alternate power sources throughout electrical

distribution system for Project. Include studies of system-switching configurations and alternate

operations that could result in maximum fault conditions.

G. The calculations shall include the ac fault-current decay from induction motors and shall apply to low-

voltage, three-phase ac systems.

H. Calculate short-circuit momentary and interrupting duties for a three-phase bolted fault and single line-to-

ground fault at each of the following:

1. Electric utility's supply termination point.

2. Switchgear.

3. Low-voltage switchgear.

4. Motor-control centers.

5. Standby generators and automatic transfer switches.

6. Branch circuit panelboards.

3.3 ARC-FLASH HAZARD ANALYSIS

A. Comply with NFPA 70E and its Annex D for hazard analysis study.

B. Use the short-circuit study output and the field-verified settings of the overcurrent devices.

C. Calculate maximum and minimum contributions of fault-current size.

1. The minimum calculation shall assume that the utility contribution is at a minimum and shall

assume no motor load.

2. The maximum calculation shall assume a maximum contribution from the utility and shall assume

motors to be operating under full-load conditions.

D. Calculate the arc-flash protection boundary and incident energy at locations in the electrical distribution

system where personnel could perform work on energized parts.

E. Include low-voltage equipment locations, except 240-V ac and 208-V ac systems fed from transformers

less than 125 kVA.

F. Safe working distances shall be specified for calculated fault locations based on the calculated arc-flash

boundary, considering incident energy of 1.2 cal/sq.cm.

G. Incident energy calculations shall consider the accumulation of energy over time when performing arc-

flash calculations on buses with multiple sources. Iterative calculations shall take into account the

changing current contributions, as the sources are interrupted or decremented with time. Fault

contribution from motors shall be decremented as follows:

1. Fault contribution from induction motors should not be considered beyond three to five cycles.

H. Arc-flash computation shall include both line and load side of a circuit breaker as follows:

1. When the circuit breaker is in a separate enclosure.

2. When the line terminals of the circuit breaker are separate from the work location.

I. Base arc-flash calculations on actual overcurrent protective device clearing time. Cap maximum clearing

time at two seconds based on IEEE 1584, Section B.1.2.




3.4 POWER SYSTEM DATA

A. Obtain all data necessary for the conduct of the arc-flash hazard analysis.

1. Verify completeness of data supplied on the one-line diagram on Drawings. Call discrepancies to

the attention of Architect.

2. For new equipment, use characteristics submitted under the provisions of action submittals and

information submittals for this Project.

B. Gather and tabulate the following input data to support coordination study.

1. Product Data for overcurrent protective devices specified in other Sections and involved in

overcurrent protective device coordination studies. Use equipment designation tags that are

consistent with electrical distribution system diagrams, overcurrent protective device submittals,

input and output data, and recommended device settings.

2. Obtain electrical power utility impedance at the service.

3. Power sources and ties.

4. For circuit breakers and fuses, provide manufacturer and model designation. List type of breaker,

type of trip and available range of settings, SCCR, current rating, and breaker settings.

5. Busway manufacturer and model designation, current rating, impedance, lengths, and conductor

material.

6. Motor horsepower and NEMA MG 1 code letter designation.

7. Low-voltage cable sizes, lengths, number, conductor material and conduit material (magnetic or

nonmagnetic).

3.5 DEMONSTRATION

A. Engage the Arc-Flash Study Specialist to train Owner's maintenance personnel in the potential arc-flash

hazards associated with working on energized equipment and the significance of the arc-flash warning

labels.

END OF SECTION



ELECTRICAL ACCEPTANCE TESTING 26 0880 - 1

SECTION 26 0880 - ELECTRICAL ACCEPTANCE TESTING

PART 1 - GENERAL




B. Refer to individual specification sections indicated below for tests to be performed and other

requirements.


A. Engage and pay for the services of a recognized independent Electrical Testing Agency for the purpose of

performing the independent inspections, tests, adjustments and settings as specified herein and in other

sections.

B. The Electrical Testing Agency shall provide all material, equipment, labor, and technical supervision to

perform such tests and inspections.

C. The Electrical Testing Agency shall submit appropriate documentation to demonstrate that it

satisfactorily complies with the following. An organization having a “Full Membership” classification

issued by the InterNational Electrical Testing Association.

1. The Electrical Testing Agency shall be an independent, third party, testing organization which can

function as an unbiased testing authority, professionally independent of the manufacturers,

suppliers, and installers of equipment or systems evaluated by the testing organization.

2. The Electrical Testing Agency shall be regularly engaged in the testing of electrical equipment

devices, installations, and systems.

D. The Electrical Testing Agency shall utilize technicians who are regularly employed for testing services.

E. Technicians performing these electrical tests and inspections shall be trained and experienced concerning

the apparatus and systems being evaluated. These individuals shall be capable of conducting the tests in a

safe manner and with complete knowledge of the hazards involved. They must evaluate the test data and

make an informed judgment on the continued serviceability or nonserviceability of the specific

equipment. Technicians shall be certified in accordance with ANSI/NETA ETT–2000, Standard for

Certification of Electrical Testing Technicians. Each on-site crew leader shall hold a current certification,

Level III or higher, in electrical testing.

1.3 PERFORMANCE CRITERIA

A. Perform acceptance testing, inspection, and calibration to assure that installed electrical systems and

equipment, either Owner or Subcontractor supplied are:

1. Installed in accordance with design Specifications and manufacturer’s instructions,

2. Ready to be energized,

3. Operational and within industry and manufacturer’s tolerances.




B. The following is a list of equipment and systems to be inspected, tested and calibrated by the Electrical

Testing Agency. Refer to specification sections for testing requirements.

1.4 REGULATORY REQUIREMENTS

A. Make Inspections and tests in accordance with the applicable codes and standards of the following

agencies except as provided otherwise herein:

1. InterNational Electrical Testing Association – NETA ATS latest Edition: Acceptance Testing

Specifications.

2. ANSI/NETA ETT – 2000, Standard for the Certification of Electrical Testing Technicians

3. National Fire Protection Association – NFPA.

a. ANSI/NFPA 70: National Electrical Code.

b. ANSI/NFP A 70B: Recommended Practice for Electrical Equipment Maintenance.

c. NFPA 70E: Electrical Safety Requirements for Employee Workplaces.

d. NFPA 99 & 101.

B. Use the following references:

1. Project design Specifications.

2. Project OVERCURRENT PROTECTIVE DEVICE STUDY – refer to Section 26 0573.

3. Manufacturer’s instruction manuals applicable to each particular apparatus.

4. Project list of equipment to be inspected and tested.

1.5 GENERAL REQUIREMENTS

A. Safety and Precautions

1. Safety practices shall include, but are not limited to, the following requirements:

a. Occupational Safety and Health Act.

b. Accident Prevention Manual for Industrial Operations, National Safety Council.

c. Applicable state and local safety operating procedures.

d. Owner’s safety practices.

e. ANSI/NFPA 70E, Electrical Safety Requirements for Employee Workplaces.

2. All tests shall be performed with apparatus de-energized except where otherwise specifically

required.

3. The Electrical Testing Agency shall have a designated safety representative on the project to

supervise operations with respect to safety.

B. Suitability of Test Equipment

1. All test equipment shall be in good mechanical and electrical condition.

2. Split-core current transformers and clamp-on or tong-type ammeters require consideration of the

following in regard to accuracy:

a. Position of the conductor within the core

b. Clean, tight fit of the core pole faces

c. Presence of external magnetic fields

d. Accuracy of the current transformer ratio in addition to the accuracy of the secondary

meter.




3. Selection of metering equipment shall be based on a knowledge of the waveform of the variable

being measured. Digital multimeters may be average or RMS sensing and may include or exclude

the dc component. When the variable contains harmonics or dc offset and, in general, any

deviation from a pure sine wave, average sensing, RMS scaled meters may be misleading.

4. Field test metering used to check power system meter calibration must have accuracy higher than

that of the instrument being checked.

5. Accuracy of metering in test equipment shall be appropriate for the test being performed but not in

excess of two percent of the scale used.

6. Waveshape and frequency of test equipment output waveforms shall be appropriate for the test and

tested equipment.

C. Test Instrument Calibration

1. The Electrical Testing Agency shall have a calibration program which assures that all applicable

test instruments are maintained within rated accuracy.

2. The accuracy shall be directly traceable to the National Institute of Standards and Technology

(NIST).

3. Instruments shall be calibrated in accordance with the following frequency schedule:

a. Field instruments: Analog, 6 months maximum; Digital, 12 months maximum

b. Laboratory instruments: 12 months

c. Leased specialty equipment: 12 months where accuracy is guaranteed by lessor.

4. Dated calibration labels shall be visible on all test equipment.

5. Records, which show date and results of instruments calibrated or tested, shall be kept up-to-date.

6. Up-to-date instrument calibration instructions and procedures shall be maintained for each test

instrument.

7. Calibrating standard shall be of higher accuracy than that of the instrument tested.

D. Test Report

1. The test report shall include the following:

a. Summary of project.

b. Description of equipment tested.

c. Description of test.

d. Test data.

e. Analysis and recommendations.

2. Test data records shall include the following minimum requirements:

a. Identification of the testing organization.

b. Equipment identification.

c. Humidity, temperature, and other atmospheric conditions that may affect the results of the

tests/calibrations.

d. Date of inspections, tests, maintenance, and/or calibrations.

e. Identification of the testing technician.

f. Indication of inspections, tests, maintenance, and/or calibrations to be performed and

recorded.

g. Indication of expected results when calibrations are to be performed.

h. Indication of “as-found” and “as-left” results.

i. Sufficient spaces to allow all results and comments to be indicated.

3. The Electrical Testing Agency shall furnish a copy or copies of the complete report to the owner

and Commissioning Authority as required in the acceptance contract.




1.6 SUBMITTALS

A. Qualifications of the Electrical Testing Agency shall be submitted to the COMMISSIONING

AUTHORITY for review with the electrical equipment submittals in accordance with Section 26 0500,

"COMMON WORK RESULTS FOR ELECTRICAL, Submittals."

PART 2 - PRODUCTS

Not Used.

PART 3 - EXECUTION

3.1 GENERAL

A. Set all adjustable circuit breaker trip settings in accordance with the trip setting report from the

ELECTRICAL SYSTEM PROTECTIVE DEVICE STUDY.

B. Test, inspect and calibrate the following electrical equipment in strict accordance with applicable sections

of NETA ATS-2003.

1. Electrical equipment shown on the electrical Drawings.

2. Electrical equipment specified in all Division 26 Specifications for the Site.

3. Electrical equipment furnished under other Divisions of the Specifications and connected under

Division 26.

C. Perform acceptance tests and inspections prior to energizing equipment, unless where energization is

required to perform specified tests.

D. Final acceptance will not occur before completion of the electrical acceptance tests, inspections and

calibrations specified in this Section.


A. Standards: Comply with applicable standards of the InterNational Electrical Testing Association (NETA),

including standard ATS.

B. Acceptance Testing: After installing equipment and BEFORE electrical circuitry has been energized.

Demonstrate product capability and compliance with requirements.

3.3 DIVISION OF RESPONSIBILITY

A. The Electrical Testing Agency shall provide all material, equipment, labor and technical supervision to

perform such tests and inspections as specified herein.

B. The Electrical Testing Agency is responsible for programming all protective and alarming devices with

the proper settings provided by the ELECTRICAL SYSTEM PROTECTIVE DEVICE STUDY. Settings

shall not be changed or applied to any device without written authorization from the Owner.




C. The Electrical Testing Agency shall notify the Commissioning Authority and Owner immediately upon

the discovery of any defective equipment or incorrect system design or installation.

D. The Electrical Testing Agency shall provide an experienced person on-site during energizing, with

appropriate test equipment to provide assistance in the event of a malfunction during the system start-up

process.

3.4 ACCEPTANCE TESTING PROCEDURES

A. Testing and acceptance procedures for the equipment and systems listed in Part 1 shall be as described in

the individual equipment specification sections listed above.

END OF SECTION



LOW VOLTAGE DISTRIBUTION TRANSFORMERS 26 2213 - 1

SECTION 26 2213 - LOW VOLTAGE DISTRIBUTION TRANSFORMERS

PART 1 - GENERAL




1.2 SUMMARY

A. This Section includes general-purpose and specialty dry-type transformers and voltage regulators with

windings rated 600 V or less.

1.3 SUBMITTALS

A. General: Submit the following according to the Conditions of the Contract and Division 1 Specification

Sections.

B. Product data for each product specified, including dimensioned plans, sections, and elevations. Show

minimum clearances and installed features and devices. Include rated KVA, primary and secondary

voltage, and all taps.

C. Wiring diagrams of products differentiating between manufacturer-installed and field-installed wiring.

D. Product certificates signed by manufacturers certifying that their products comply with the specified

requirements.

E. Qualification data for firms and persons specified in the "Quality Assurance" Article to demonstrate their

capabilities and experience. Include a list of relevant completed projects with project names and

addresses, and names and addresses of the respective Architects and Owners.

F. Certified Test Reports, including: No load losses, full load losses, Sound level, average temperature rise

above 40o ambient, attenuation and field strength for K-rated transformers.

G. Product Test Reports: Certified copies of manufacturer's routine factory tests required by the referenced

standards.

H. Sound Level Test Reports: Certified copies of manufacturer's sound level tests applicable to equipment

for this Project.

I. Operation and maintenance data for materials and products to include in the "Operating and Maintenance

Manual" specified in Division 1.

J. Field test reports of tests and inspections conducted according to Part 3 of this Section.





A. Manufacturer Qualifications: A firm experienced in manufacturing components that comply with the

requirements of these Specifications and that have a record of successful in-service performance.

B. Field-Testing Agency Qualifications: To qualify for acceptance, an independent testing agency must

demonstrate, based on evaluation of agency-submitted criteria conforming to ASTM E 699, that it has the

experience and capability to satisfactorily conduct the testing indicated.

C. Comply with NFPA 70, National Electrical Code.

D. Comply with IEEE C2, National Electrical Safety Code.

E. Listing and Labeling: Products are listed and labeled.

1. The Terms "Listed" and "Labeled": As defined in the National Electrical Code, Article 100.


A. Temporary Heating: Apply temporary heat according to manufacturer's recommendations within the

enclosure of each ventilated type unit throughout periods during which equipment is not energized and is

not in a space that is continuously under normal control of temperature and humidity.

B. Protection: Cover transformer ventilating openings to keep out dust.

PART 2 - PRODUCTS

2.1 MANUFACTURERS

A. Manufacturers: Subject to compliance with requirements, provide products by the following:

1. Transformers:

a. Bryant Electric

b. Cutler Hammer

c. Current Systems Technologies

d. Federal Pacific Transformer Co.

e. Hevi-Duty Electric

f. Line Power Mfg. Corp.

g. MagneTek, Jefferson

h. Master Electronic Controls

i. Siemens Energy & Automation, Inc.

j. Square D Co.

k. Hammond Power Solutions




2. Voltage Regulators:

a. Acme Electric Corp.

b. Cyberex, Inc.

c. Deltron, Inc.

d. Hevi-Duty Electric

e. Hipotronics, Inc.

f. IEPS, Inc.

g. ITT Power Systems Corp.

h. MagneTek, Jefferson

i. Marelco Power Systems, Inc.

j. Master Electronic Controls

k. Matra Electric, Inc.

l. Micron Industries Corp.

m. NLW Transformers

n. Parker Electrical Mfg. Co.

o. Rapid Power Technologies

p. ROMAC Supply Co.

q. Shape Electronics, Inc.

r. Seimens Energy and Automation, Inc.

s. Sola Electric

t. Square D. Co.

u. The Superior Electric Co.

v. Westinghouse Electric Corp.

2.2 TRANSFORMERS, GENERAL

A. Transformers: Factory-assembled and -tested, air-cooled units of types specified, designed for 60-Hz

service.

B. Cores: Grain-oriented, nonaging silicon steel.

C. Coils: Continuous windings without splices except for taps.

D. Internal Coil Connections: Brazed or welded type. Enclosure temperature not to exceed 50

o C rise above

40o C ambient.

2.3 GENERAL-PURPOSE, DRY-TYPE TRANSFORMERS

A. Comply with NEMA Standard ST 20, Dry-Type Transformers for General Applications.

B. Transformers: Two-winding type, 3-phase units using 1 coil per phase in primary and secondary.

C. Windings: Copper or Aluminum.

D. Low Sound Level Units: Minimum of 3 dBA less than NEMA ST 20 standard sound levels when factory

tested according to IEEE Standard C57.12.91, Test Code for Dry-Type Distribution and Power

Transformers.




E. Features and Ratings: As follows:

1. Enclosure: Indoor, ventilated.

2. Enclosure: Outdoor, ventilated, raintight, NEMA 3R.

F. Insulation Class: 220 deg C, UL-component-recognized insulation system with a maximum of 115 deg C

rise above 40 deg C ambient temperature.

G. Taps: For transformers 3 kVA and larger, full capacity taps in high-voltage winding are as follows:

1. 3 kVA through 10 kVA: Two 5-percent taps below rated high voltage.

2. 15 kVA through 500 kVA: Six 2.5-percent taps, 2 above and 4 below rated high voltage.

3. 750 kVA and Above: Four 2.5-percent taps, 2 above and 2 below rated high voltage.

H. Accessories: The following accessory items are required where indicated:

1. Surge Arresters: NEMA Standard LA 1, low-voltage type, factory installed and connected to high-

voltage terminals.

2. Surge Arresters: NEMA Standard LA 1, low-voltage type, factory installed and connected to low-

voltage terminals.

3. Electrostatic Shielding: Insulated metallic shield between primary and secondary windings.

a. Connect shield to terminal marked "Shield" for grounding connection.

b. Capacitance: Arrange shield to provide a maximum of 33 picofarads primary-to-secondary

capacitance over a frequency range of 20 Hz to 1 MHz.

4. Wall-Mounting Brackets: Manufacturer's standard brackets for transformers up to 75 kVA.

2.4 TRANSFORMERS, NON-LINEAR LOADS

A. Meet all requirements of General-Purpose, Dry Type Transformers.

B. K-Rating as shown on drawings and UL listed for k-factor rating.

C. Neutral terminal rated 200% of phase current.

2.5 CONTROL AND SIGNAL TRANSFORMERS

A. Comply with NEMA Standard ST 1, Specialty Transformers, and UL Standard 506, Specialty

Transformers.

B. Ratings: Continuous duty. Where ratings is not indicated, provide capacity exceeding peak load by 50

percent minimum.

C. Type: Self-cooled, 2-winding, dry type.

D. Enclosure: Suitable for the location where installed.




2.6 FINISHES

A. Indoor Units: Manufacturer's standard paint over corrosion-resistant pretreatment and primer.

B. Outdoor Units: Comply with Enclosure Coating System Article of IEEE Standard C57.12.28 Pad-

Mounted Equipment Enclosure Integrity.

2.7 SOURCE QUALITY CONTROL

A. Factory Tests: Design and routine tests conform to referenced standards.

B. Factory Sound-Level Tests: Conduct sound-level tests on equipment for this Project where specified

sound levels are below standard ratings.

PART 3 - EXECUTION

3.1 INSTALLATION

A. Arrange equipment to provide adequate spacing for access and for cooling air circulation. Not less than 3

inches behind transformers less than 45 kVA, and not less than 12 inches behind transformers larger than

45 kVA.

B. Identify transformers and install warning signs according to Division 26, Section 26 0553, Identification

for Electrical Systems.

C. Tighten electrical connectors and terminals according to manufacturer's published torque-tightening

values. Where manufacturer's torque values are not furnished, use those specified in UL 486A and UL

486B.

D. Provide concrete housekeeping pads for all floor mounted transformers.

3.2 GROUNDING

A. Ground transformers and systems served by transformers according to Division 26, Section 26 0526,

Grounding and Bonding for Electrical Systems.

B. Core visibly grounded to enclosure by a flexible grounding conductor.


A. Test Objectives: To ensure transformer installation is operational within industry and manufacturer's

tolerances, install according to Contract Documents, and suitable for energizing.

B. Test Labeling: Upon satisfactory completion of tests for each unit, attach a dated and signed "Satisfactory

Test" label to the tested component.




C. Schedule tests and provide notification at least one week in advance of test commencement.

D. Report: Submit a written report of observations and tests. Report defective materials and workmanship.

E. Tests: Include the following minimum inspections and tests according to the manufacturer's instructions.

Conform to IEEE Standard Test Code C57.12.91 for dry-type units, test method, and data correction

factors.

1. Inspect accessible components for cleanliness, mechanical, and electrical integrity, for presence of

damage or deterioration, and to ensure removal of temporary shipping bracing. Do not proceed

with tests until deficiencies are corrected.

a. Include internal inspection through access panels and covers.

b. Inspect bolted electrical connections for tightness according to manufacturer's published

torque values or, where not available, those of UL Standards 486A and 486B.

2. Insulation Resistance: Perform megohmmeter test of primary and secondary winding-to-winding

and winding-to-ground. Use a minimum test voltage of 1,000 V d.c. Minimum insulation

resistance is 500 megohms.

3. Duration of Each Test: 10 minutes.

4. Temperature Correction: Correct results for test temperature deviation from 20oC standard.

5. Testing for Voltage Regulators: Perform same tests and inspections specified above for

transformers. Include functional test throughout operating range of device. Check voltage

tolerance, correction speed, and harmonic content of output for stepped changes in source voltage

at 35 percent, 70 percent, and 100 percent of rated load.

F. Test Failures: Correct deficiencies identified by tests and retest. Verify that equipment meets the

specified requirements.

3.4 ADJUSTING

A. After completing installation, cleaning, and testing, touch up scratches and mars on finish to match

original finish.

B. Adjust transformer taps to provide optimum voltage conditions at utilization equipment throughout the

normal operating cycle of the facility. Record voltages and tap settings to submit with test results.

C. Adjust buck-boost transformer connections to provide optimum voltage conditions at utilization

equipment throughout the normal operating cycle of the facility.

D. Adjust voltage regulators to provide optimum voltage at equipment served throughout the normal

operating cycle of the facility. Record adjustment settings to submit with test results.

3.5 DEMONSTRATION

A. Adjustment and Training: Arrange and pay for factory-authorized service representatives to adjust and

demonstrate voltage regulators and to conduct related training for Owner's maintenance personnel.

Provide a minimum of four (4) hours of training that include the following:

1. Safety precautions.




2. Features and construction of project equipment.

3. Voltage adjustment procedures.

4. Routine inspection and test procedures.

5. Routine cleaning.

6. Interpretation of readings of indicating and alarm devices.

B. Schedule training with at least seven (7) days advance notice.

END OF SECTION



SWITCHBOARDS 26 2413 - 1

SECTION 26 2413 - SWITCHBOARDS

PART 1 - GENERAL




1.2 SUMMARY

A. This Section includes service and distribution switchboards rated 600 V and less.

B. Related Sections include the following:

1. Division 26, Section 26 0500, Common Work Results for Electrical for general and installation

materials and methods.

2. Division 26, Section 26 0553, Identification for Electrical Systems for identification materials.

3. Division 26, Section 26 2813, Fuses.

4. Division 26, Section 26 4313 Surge Protection Devices for Low-Voltage Electrical Power Circuits.

1.3 SUBMITTALS

A. Product Data: For each product and component specified.

B. Shop Drawings: For each switchboard. Show dimensioned plans and elevations, including required

clearances and service space, component and device lists, and a single-line diagram showing main- and

branch-bus current ratings and short-time and short-circuit ratings of switchboard. Include the following:

1. Descriptive documentation of optional barriers specified for electrical insulation and isolation.

2. Utility company metering provisions with indication of approval by utility company.

3. Bus configuration, current rating, voltage rating, and short circuit rating of overcurrent devices.

4. Schedule of features, characteristics, ratings, and factory settings of individual protective devices.

5. Wiring Diagrams: Details of wiring for power and control and differentiating between manufacturer-

installed and field-installed wiring.

6. Nameplate Schedule.

7. Cable terminal sizes.

8. Key interlock scheme drawing and sequence of operation.

9. Seismic Certification.

C. Qualification Data: For firms and persons specified in "Quality Assurance" Article.

D. Reports of Field Tests and Observations: Certified by testing agency.

E. Manufacturer field service report.

F. Certificates for field testing agency, signed by Contractor, certifying that agency complies with requirements

specified in "Quality Assurance" Article below.




G. Maintenance Data: For switchboards to include in the maintenance manuals specified in Division 1. Include

detailed manufacturer's written instructions on adjusting overcurrent protective devices.

1. Routine maintenance requirements.

2. Time current curves, including selectable range, for each type of overcurrent protective device.


A. Testing Agency Qualifications: In addition to the requirements specified in Division 1 Section Quality

Control, an independent testing agency shall meet OSHA criteria for accreditation of testing laboratories,

Title 29, Part 1907, or shall be a full-member company of the InterNational Electrical Testing Association.

1. Testing Agency's Field Supervisor: Person currently certified by the InterNational Electrical Testing

Association or National Institute for Certification in Engineering Technologies, to supervise on-site

testing specified in Part 3.

B. Listing and Labeling: Provide switchboard assemblies specified in this Section that are listed and labeled.


C. Comply with NFPA 70.

D. Comply with NEMA PB 2.

E. Product Selection for Restricted Space: Drawings indicate maximum dimensions for switchboard equipment,

including clearances between switchboard and adjacent surfaces and items. Switchboards having equal

performance characteristics and complying with indicated maximum dimensions may be considered.


A. Deliver in shipping splits of lengths that can be moved past obstructions in delivery path.

B. Store so condensation will not occur on or in switchboards. Provide temporary heaters as required to avoid

condensation.

C. Handle switchboards according to NEMA PB 2.1. Use only factory-installed lifting provisions.

1.6 PROJECT CONDITIONS

A. Verify dimensions by field measurements.

B. Determine suitable path for moving switchboard into place considering Project conditions.

C. Verify clearance requirements. Locate switchboard to meet installation tolerances.

D. Revise locations and elevations from those indicated as required to suit Project conditions.




1.7 EXTRA MATERIALS

A. Spare Fuses: 6 spares of each type and rating of fuse and fusible devices used. Include spares for the

following:

1. Potential transformer fuses.

2. Control power fuses.

3. Fuses and fusible devices for fused circuit breakers.

4. Fuses for fusible switches.

5. Fuses for fused power-circuit devices.

B. Spare Indicating Lights: 6 of each type installed.

PART 2 - PRODUCTS

2.1 MANUFACTURERS

A. Manufacturers: Subject to compliance with requirements, provide products by the following:

1. Eaton Corp.; Westinghouse & Cutler-Hammer Products.

2. Siemens Energy & Automation, Inc.

3. Square D Co.

2.2 MANUFACTURED UNITS

A. Front-Connected, Front-Accessible Switchboard: Fixed, individually mounted main device, panel-mounted

branches, and sections rear aligned.

1. Main Device: Individually fixed mounted.

2. Branch Devices: Panel mounted.

B. Ratings: Provide nominal system voltage, continuous main-bus amperage, and short-circuit current ratings as

indicated.

C. Nominal System Voltage: Refer to drawings.

D. Main-Bus Continuous: Refer to drawings.

E. Service Entrance: Suitable for use as service entrance equipment and so labeled in accordance with UL

requirements.

2.3 FABRICATION AND FEATURES

A. Enclosure: Steel; NEMA 250, Type 1, or as indicated on Contract Drawings.

B. Enclosure Finish for Outdoor Units: Factory-applied finish in manufacturer's standard color, including

undersurfaces treated with corrosion-resistant undercoating.

C. Enclosure Finish for Indoor Units: Factory-applied finish in manufacture's standard gray finish over a rust-

inhibiting primer on treated metal surface.




D. Barriers: Between adjacent switchboard sections.

E. Insulation and isolation for main bus of main section and main and vertical buses of feeder sections.

F. Service Conditions: NEMA PB 2, usual service conditions, except for the following unusual service

conditions:

1. None.

G. Space Heaters: Factory-installed electric space heaters, in each vertical section that is scheduled for

installation outdoors or in an unheated space.

1. Space-Heater Power Source: Transformer factory-mounted in switchboard. 120 V, indicated external

branch circuit.

H. Utility Metering Compartment: Fabricated compartment and section meeting utility company's requirements.

If separate vertical section is required for utility metering, match and align with basic switchboard.

I. Bus Transition and Incoming Line Pull Sections: Matched and aligned with basic switchboard.

J. Removable, Hinged Rear Covers: Secured by captive thumb screws, for access to rear interior of

switchboard.

K. Hinged Front Panels: Allow access to breaker, metering, accessory, and blank compartments.

L. Buses and Connections: 3 phase, 4 wire, except as otherwise indicated. Features as follows:

1. Phase and Neutral-Bus Material: Hard-drawn copper of 98 percent conductivity with feeder circuit-

breaker line connections. Use copper for feeder circuit-breaker line connections.

2. Load Terminals: Silver-plated copper bus extensions equipped with pressure connectors for outgoing

circuit conductors.

3. Ground Bus: 1/4-by-2-inch minimum size, drawn-temper copper of 98 percent conductivity; equipped

with pressure connectors for feeder- and branch-circuit ground conductors. For busway feeders,

extend insulated equipment grounding cable to busway ground connection and support cable at

intervals in vertical run.

4. Contact Surfaces of Buses: Silver plated.

5. Main Phase Buses, Neutral Buses, and Equipment Ground Buses: Uniform capacity the entire length

of the switchboard main and distribution sections. Provide for future extensions from both ends.

6. Isolation Barrier Access Provisions: Permit checking bus bolt tightness.

7. Neutral Buses: 100 percent of the ampacity of the phase buses, except as indicated, and equipped with

approved pressure connectors for outgoing circuit neutral cables. Bus extensions for busway feeder

neutral bus is braced.

8. Aluminum is not permitted.

M. Bus-Bar Insulation: Not required.

2.4 OVERCURRENT PROTECTIVE DEVICES

A. Molded-Case Circuit Breaker: NEMA AB 1, handle lockable.

1. Characteristics: Frame size, trip rating, number of poles, and auxiliary devices as indicated and

interrupting capacity rating to meet available fault current.




2. Application Listing: Appropriate for application, including switching fluorescent lighting loads or

heating, air-conditioning, and refrigerating equipment.

3. Circuit Breakers, 200 A and Larger: Trip units interchangeable within frame size.

4. Circuit Breakers, 400 A and Larger: Field-adjustable short-time and continuous current settings.

5. Current-Limiting Trips: Where indicated, let-through ratings less than NEMA FU 1, Class RK-5.

6. Current Limiters: Where indicated, integral fuse listed for circuit breaker.

7. Lugs: Mechanical lugs and power-distribution connectors for number, size, and material of conductors

indicated.

8. Shunt Trip: Where indicated.

B. Enclosed, Insulated-Case Circuit Breaker: Fully rated, encased power circuit breaker.

1. Characteristics: Frame size, trip rating, number of poles, and auxiliary devices as indicated and

interrupting capacity rating to meet available fault current.

2. Features: Include the following:

a. Drawout circuit-breaker mounting.

b. 2-step stored-energy closing.

c. Microprocessor-based trip units with interchangeable rating plug and selectable I-squared-t

response.

d. LED trip indicators.

e. Remote trip indication and control

f. Undervoltage trip.

g. Shunt trip.

3. Control Voltage: 48 V, ac.

4. Lugs: Mechanical lugs and power-distribution connectors for number, size, and material of conductors

indicated.

C. Future Devices: Where indicated, equip compartments with mounting brackets, supports, bus connections,

and appurtenances designed for overcurrent protective device types and ampere ratings indicated.

2.5 OTHER CIRCUIT CONTROL AND PROTECTIVE DEVICES

A. Factory-installed and factory-tested devices of types listed below, with indicated ratings, settings, and features.

B. Surge Protective Devices: IEEE C62.41, selected to meet requirements for category indicated.

1. Exposure: Medium.

C. Impulse sparkover voltage coordinated with system circuit voltage.

D. Factory mounted with UL-recognized mounting device.

2.6 INSTRUMENTATION

A. Instrument Transformers: NEMA EI 21.1, IEEE C57.13, and the following:

1. Potential Transformers: Secondary voltage rating of 120 V and NEMA accuracy class of 0.3 with

burdens of W, X, and Y.

2. Current Transformers: Ratios as indicated and accuracy class and burden suitable for connected

relays, meters, and instruments.




3. Control Power Transformers: Dry type, mounted in separate compartments for units larger than 3 kV.

4. Current Transformers for Neutral and Ground-Fault Current Sensing: Ground/neutral sensor current

transformers located as indicated. Connect secondaries to ground overcurrent relays to provide

selective tripping of bus tie and main breaker. Coordinate with feeder breaker ground-fault protection.

B. Multifunction Digital Metering Monitor: UL listed or recognized microprocessor-based unit having data

acquisition, on-board data logging/trending and control capability suitable for 3 or 4-wire systems and with

the following features:

1. Inputs: Sensors or current transformers from 100/5 through 5000/5 ratings and potential up to 600V.

2. RMS: Current and voltage valves to be true RMS.

3. Switch selectable digital display of the following values with maximum accuracy tolerances as

indicated:

a. Phase Currents, Each Phase: Plus or minus 1 percent.

b. Phase-to-Phase Voltages, 3 Phase: Plus or minus 1 percent.

c. Phase-to-Neutral Voltages, 3 Phase: Plus or minus 1 percent.

d. Megawatts: Plus or minus 2 percent.

e. Megavars: Plus or minus 2 percent.

f. Power Factor: Plus or minus 2 percent.

g. Frequency: Plus or minus 0.5 percent.

h. Megawatt Demand: Plus or minus 2 percent; demand interval programmable from 5 to 60

minutes. Peak demand for a programmable period of 1 to 90 days.

i. Accumulated Energy, Megawatt Hours: Plus or minus 2 percent. Accumulated values

unaffected by power outages up to 72 hours.

4. Mounting: Display and control unit flush or semi-flush mounted in instrument compartment door.

5. Communications Outputs: Include all types listed below. All meter parameters to be available on the

indicated output(s).

a. RS485 output, daisy chain connected.

b. Ethernet 10/100/1000 Base-T.

6. Battery: 10 year minimum life.

C. Ammeters, Voltmeters, and Power-Factor Meters: ANSI C39.1.

1. Meters: 4-inch diameter or 6 inches square, flush or semi-flush, with anti-parallax 250-degree scales

and external zero adjustment.

2. Voltmeters: Cover an expanded scale range of nominal voltage plus 10 percent.

D. Instrument Switches: Rotary type with off position.

1. Voltmeter Switches: Permit reading all phase-to-phase voltages, and where a neutral is indicated,

phase-to-neutral voltages.

2. Ammeter Switches: Permit reading current in each phase, and maintain current-transformer

secondaries in a closed-circuit condition at all times.

E. Feeder Ammeters: 2-1/2-inch minimum size with 90 or 120-degree scale. Meter and transfer device with an

off position, located on overcurrent device door for indicated feeder circuits only.




F. Watt-Hour Meters: Flush or semi-flush type, rated 5 A, 120 V, 3 phase, 3 wire, with 3 elements, 15-minute-

indicating-demand register, and provision for testing and adding pulse initiation.

G. Recording Demand Meter: Useable as totalizing relay or indicating and recording maximum demand meter

with 15-minute interval. Meter shall count and control a succession of pulses entering 2 channels. House in

drawout, back-connected case arranged for semiflush mounting.

2.7 CONTROL POWER

A. Control Circuits: 120 V, supplied through secondary disconnect devices from control power transformer.

B. Electrically Interlocked Main and Tie Circuit Breakers: 2 control power transformers in separate

compartments with interlocking relays, connected to the primary side of each control power transformer at the

line side of the associated main circuit breaker. 120-V secondaries connected through automatic transfer

relays to effect a fail-safe automatic transfer scheme.

C. Control Power Fuses: Primary and secondary fuses for current-limiting and overload protection of

transformer and fuses for protection of control circuits.

D. Control Wiring: Factory installed, complete with bundling, lacing, and protection. Provide flexible

conductors for No. 8 AWG and smaller, for conductors across hinges, and for conductors for interconnections

between shipping units.

2.8 ACCESSORY COMPONENTS AND FEATURES

A. Accessory Set: Include tools and miscellaneous items as required for overcurrent protective device test,

inspection, maintenance, and operation.

B. Portable Test Set: Arranged to permit testing of all functions of solid-state trip devices without removal from

switchboard. Include relay and meter test plugs suitable for testing switchboard meters and switchboard class

relays.

C. Circuit-Breaker Removal Apparatus: Portable, floor-supported, roller-base, elevating carriage arranged for

movement of breakers in and out of compartments for present and future breakers.

D. Circuit-Breaker Removal Apparatus: Overhead breaker lifting device, mounted at top front of switchboard

and complete with hoist and lifting yokes matching each drawout breaker.

E. Spare-Fuse Cabinet: Suitably identified, wall-mounted, lockable, compartmented, steel box or cabinet.

Arrange for wall mounting.

F. Fungus Proofing: Permanent fungicidal treatment for switchboard interior, including instruments and

instrument transformers.

2.9 IDENTIFICATION

A. Nameplates and label products are specified in Division 26, Section 26 0500, Common Work Results for

Electrical.




B. Nameplates and label products are specified in Division 26, Section 26 0553, Identification for Electrical

Systems.

1. Compartment Nameplates: Engraved laminated-plastic or metal nameplate for each compartment,

mounted with corrosion-resistant screws.

C. Mimic Bus: Continuously integrated mimic bus factory applied to front of switchboard. Arrange in single-

line diagram format, using symbols and lettered designations consistent with approved final mimic-bus

diagram. Coordinate mimic-bus segments with devices in switchboard sections to which applied. Produce a

concise visual presentation of principal switchboard components and connections.

1. Medium: Painted graphics in approved color contrasting with equipment factory-finish background to

represent bus and components, complete with lettered designations.

PART 3 - EXECUTION

3.1 EXAMINATION

A. Examine elements and surfaces to receive switchboard for compliance with installation tolerances and other

conditions affecting performance of switchboards.

1. Do not proceed with installation until unsatisfactory conditions have been corrected.

3.2 INSTALLATION

A. Install switchboards level and plumb as indicated, according to manufacturer's written instructions and

NEMA PB 2.1.

B. Support switchboards on concrete housekeeping bases, 4-inch nominal thickness. Bases to be 4 inches larger

in both directions than overall dimensions of supported unit.

C. Temporary Lifting Provisions: Remove temporary lifting eyes, channels, and brackets and temporary

blocking of moving parts from switchboard units and components.

D. Anchor: Anchor switchboards in accordance with Manufacturer’s recommendations and to meet UBC Seismic

Zone requirements. (See Division 1 specifications for more information.)

E. Operating Instructions: Frame and mount printed, basic operating instructions for switchboards, including

control and key interlocking sequences and emergency procedures. Fabricate frame of finished wood or metal

and cover instructions with clear acrylic plastic. Mount on the front of switchboards.

3.3 CONNECTIONS

A. Connect switchboards and components to wiring systems and to ground as indicated and instructed by

manufacturer.

1. Tighten electrical connectors and terminals, including screws and bolts, according to manufacturer's

published torque tightening values. Where manufacturer's torque values are not indicated, use those

specified in UL 486A and UL 486B.




3.4 IDENTIFICATION

A. Identify field-installed wiring and components and provide warning signs as specified in Division 26, Section

26 0500, Common Work Results for Electrical.

B. Install compartment nameplates.


A. Standards: Comply with applicable standards of the InterNational Electrical Testing Association (NETA),

including standard ATS.

B. Prepare for acceptance tests as follows:

1. Make insulation-resistance tests of each switchboard bus, component, and connecting supply, feeder,

and control circuits. Insulation resistance less than 100 megohms is not acceptable.

2. Make continuity tests of each circuit.

C. Manufacturer's Field Service: Provide services of a factory-authorized service representative to supervise

pretesting and adjustment of switchboard components for a total of not less than five (5) working days.

D. Testing: After installing switchboards and after electrical circuitry has been energized, demonstrate product

capability and compliance with requirements.

1. Reference specification section 260880 for requirements.

2. Correct malfunctioning units on-site, where possible, and retest to demonstrate compliance; otherwise,

remove and replace with new units, and retest.

E. Infrared Scanning: After Substantial Completion, but not more than 2 months after Final Acceptance, perform

an infrared scan of each switchboard. Remove fronts to make joints and connections accessible to a portable

scanner.

1. Follow-up Infrared Scanning: Perform 1 additional follow-up infrared scan of each switchboard 11

months after date of Substantial Completion.

2. Instrument: Use an approved infrared scanning device designed to measure temperature or detect

significant deviations from normal values. Provide calibration record for device used.

3. Record of Infrared Scanning: Prepare a certified report identifying switchboards checked and

describing results of scanning. Include notation of deficiencies detected, remedial action taken, and

observations after remedial action.

3.6 ADJUSTING

A. Set field-adjustable switches and circuit-breaker trip ranges as indicated.

3.7 CLEANING

A. Upon completion of installation, inspect interior and exterior of switchboards. Remove paint splatters and

other spots, dirt, and debris. Touch up scratches and mars of finish to match original finish.




3.8 DEMONSTRATION

A. Startup Services: Engage a factory-authorized service representative to demonstrate and train Owner's

maintenance personnel as specified below:

1. To identify each switchboard location.

2. To instruct in function, operation, and maintenance of each component.

3. To instruct in each distinct procedure and schedule related to servicing and preventive maintenance.

4. Schedule training with at least seven (7) days advanced notice.

B. Training: Conduct a minimum of one full day of training, including both classroom and hands-on equipment

training.

3.9 PROTECTION

A. Temporary Heating: Apply temporary heat to maintain temperature according to manufacturer's written

instructions.

END OF SECTION



GROUND-FAULT PROTECTION 26 2820 - 1

SECTION 26 2820 - GROUND-FAULT PROTECTION

PART 1 - GENERAL


A. Drawings and general provisions of the Contract, including General and Supplemental General

Conditions and Division 1 Specification Sections, apply to this section.

1.2 SUMMARY

A. This section includes ground-fault sensing, relaying, tripping, and monitoring devices for installation in

distribution switchboards and panelboards rated 600 V and less.

1.3 SUBMITTALS

A. General: Submit each item in this Article according to the Conditions of the Contract and Division 1

Specification Sections.

B. Product Data for each component specified.

C. Wiring diagrams detailing wiring for power and control systems and differentiating between

manufacturer-installed and field-installed wiring.

D. Qualification data for firms and persons specified in "Quality Assurance" Article to demonstrate their

capabilities and experience. Include lists of completed projects with project names and addresses, names

and addresses of architects and owners, and other information specified.

E. Field test reports indicating and interpreting test results relative to compliance with performance

requirements of ground-fault protection system.

F. Maintenance data for ground-fault relay to include in the operation and maintenance manual specified in

Division 1.


A. Installer Qualifications: Engage an experienced installer to install ground-fault protection system

components that is acceptable to manufacturer of switchboard or disconnect device in which installation

is to be made.

B. Manufacturer Qualifications: Engage a firm experienced in manufacturing ground-fault protection

components similar to those indicated for this Project and with a record of successful in-service

performance.




C. Testing Agency Qualifications: A "Nationally Recognized Testing Laboratory" (NRTL) as defined in

OSHA Regulation 1910.7, or a full member company of the InterNational Electrical Testing Association

(NETA).

1. Testing Agency Field Supervision: Use persons currently certified by NETA or the National

Institute for Certification in Engineering Technologies to supervise on-site testing specified in

Part 3.

D. Comply with UL 1053.

E. Comply with NFPA 70.

F. Listing and Labeling: Provide products specified in this Section that are listed and labeled.


PART 2 - PRODUCTS

2.1 MANUFACTURERS

A. Available Manufacturers: Subject to compliance with requirements, manufacturers offering ground-fault

protection components that may be incorporated into the Work include, but are not limited to, the

following:

1. Cutler Hammer; Advanced Products Support Center

2. General Electric Company; Electrical Distribution and Control


4. Schneider Electric; Square D Group

2.2 GROUND-FAULT SENSING DEVICES

A. Current Sensors: Round- or split-core rectangular current transformers.

B. Short-Circuit Rating: 200,000 symmetrical amperes.

C. Sensor Outputs: Compatible with relay inputs.

D. Split-Core Construction: Rectangular sensors are constructed to allow installation and removal without

disturbing electrical conductors being encircled.

E. Relay Test Provisions: Test winding in sensor is arranged to permit testing the operation of complete

ground-fault protection system, including sensor, relay, monitor panel, and circuit-interrupting device.




2.3 RELAYS AND MONITORS

A. Ground-Fault Relay: Solid-state type that requires no external source of electrical power for relay

operation.

1. Testing and Tripping Voltage: 120 VAC, from external source.

2. Interlocking: Field wiring terminals and interface devices accommodate zone-selective

coordination with other ground-fault relays or with ground-fault function of electronic trip units of

circuit breakers indicated for coordination.

3. Pick-up Current Sensitivity: Field adjustable from 100 to 1200 A, with calibrated dial designed to

inhibit tampering with setting.

4. Time Delay: Field adjustable from instantaneous to one second, with calibrated dial designed to

inhibit tampering with setting.

5. UL 1053, Class I.

6. Output Circuit: Compatible with rating of tripping coils of interrupting device.

7. Zone-Selective Coordination Capability: Designed to coordinate with other ground-fault

protection and with electronic trip units of circuit breakers indicated for coordination.

B. Monitor Panels: Include ground-fault indicator, control-power indicator, and test and reset buttons,

arranged to allow testing with and without tripping.

PART 3 - EXECUTION

3.1 EXAMINATION

A. Examine equipment to receive ground-fault protection devices for compliance with installation tolerances

and other conditions affecting integrity and safety of completed installation and performance of the

ground-fault protection system. Do not proceed with installation until unsatisfactory conditions have

been corrected.

3.2 INSTALLATION

A. Install ground-fault protection devices according to manufacturer's written instructions.

B. Install sensors so they encircle power-conductor bus bars or cables symmetrically. Maintain clearances

between conductors and sensor body as recommended by device manufacturer.

C. Fasten and support sensors without mechanical stress, twisting, or misalignment being exerted by clamps,

supports, bus bars, or cables.

D. Install interconnecting wiring for zone-selective systems in raceway where it runs external to component

enclosure. Comply with Division 26 Sections, Raceways and Boxes and Wires and Cables.

E. Connections: Tighten connectors and terminals, including screws and bolts, according to equipment

manufacturer's published torque-tightening values for equipment connectors. Where manufacturer's

torque values are not indicated, use those specified in UL 486A.





A. Testing: Upon completion of installation of ground-fault protection system and after electrical circuits

have been energized, demonstrate capability and compliance with requirements.

1. Procedures: Perform each visual and mechanical inspection and electrical test stated in

NETA ATS, Section 7.14. Certify compliance with test parameters.

B. Correct malfunctioning units at site, where possible, and retest to demonstrate compliance; otherwise,

remove and replace with new units and retest.

3.4 ADJUSTING

A. Perform short-circuit analysis and coordination study. Set field-adjustable pick-up and time-sensitivity

values accordingly.

B. Coordination: Use zone-selective method with 0.1-second delay of upstream devices between upstream

and downstream ground-fault protection devices and circuit-breaker electronic trip units.

END OF SECTION



SURGE PROTECTION DEVICES FOR LOW VOLTAGE ELECTRICAL POWER CIRCUITS 26 4313 - 1

SECTION 26 4313 - SURGE PROTECTION DEVICES FOR LOW VOLTAGE ELECTRICAL POWER

CIRCUITS

PART 1 - GENERAL


A. Drawings and general provisions of Contract, including General and Supplementary Conditions and Division

1 Specification Sections, apply to this Section.

B. Requirements of the following Division 26 Sections apply to this Section:

1. "Basic Electrical Materials and Methods."

1.2 SUMMARY

A. Surge Protection Devices (SPD) for low voltage power equipment.

B. This Section is hereby made a part of all other applicable sections of Division 26 as fully as if repeated in each

therein.


A. SPD devices shall be tested to and comply with the latest editions of the following standards:

1. NFPA 70, 75 and 78

2. UL Standard 1449 and 1283

3. IEEE STD 142 and 518

4. ANSI/IEEE C62.41 and C62.45

5. FIPS PUB 94

6. NEMA LS-1

7. ANSI

8. MIL-STD 220A

B. UL Compliance: Comply with UL 1449 and UL 1283.

C. The system shall be tested to MIL-STD 220A for electrical line noise attenuation per 50 ohm insertion loss

measurement method of RF frequencies up to 100 MHz.

D. Thoroughly Factory test to UL Manufacturing and production-line tests, quality assurance tests, MCOV tests,

and surge clamping voltage verification tests.

E. NEMA Compliance: Comply with NEMA LS-1.




1.4 TESTING

A. Single Pulse Surge Current Capacity

1. In compliance with NEMA LS-1-1992, Paragraphs 2.2.9 and 3.9, the system design configuration

shall have the maximum single pulse surge current tested in all modes at rated surge currents by an

industry-recognized independent testing laboratory.

2. Single Pulse Surge Current Capacity Test

a. An initial UL 1449 Second Edition, surge defined as a 1.2 x 50 µsec, 6000V open circuit

voltage waveform and an 8 x 20 µsec, 500A short circuit current waveform shall be applied to

benchmark SPD suppression voltage.

b. A single pulse surge of maximum rated surge current magnitude with an approximated 8 x 20

µsec waveform shall then be applied.

c. To complete the test, another UL 1449 surge shall be applied to verify the unit's survival.

3. Survival is achieved if the suppression voltage measured from the two UL 1449 surges does not

vary by more than 10%.

B. Minimum Repetitive Surge Current Capacity

1. The system design configuration shall have a repetitive surge current capacity rating which shall be

verified through testing.

2. Minimum Repetitive Surge Current Capacity Test

a. An initial UL 1449 Second Edition, surge defined as a 1.2 x 50 µsec, 6000V open circuit

voltage waveform and an 8 x 20 µsec, 500A short circuit current waveform shall be applied to

benchmark SPD suppression voltage.

b. A repetitive number of ANSI/IEEE C62.41-1991 (Category C3) surges defined as a 1.2 x 50

microsecond 20,000V open circuit voltage waveform and an 8 x 20 microsecond 10,000A

short current waveform shall then be applied at one minute intervals.

c. To complete the test, another UL 1449 surge shall be applied to verify the unit's survival.

3. Survival is achieved if the suppression voltage measured from the two UL 1449 surges does not

vary by more than 10%.

C. Short Circuit Fuse Testing

1. The system design configuration shall be short circuit tested in accordance with the type of fusing

utilized in the suppression path.

2. Short Circuit Fuse Test

a. Testing shall include application of a sustained overvoltage that causes the unit to enter a

bolted fault condition.

b. This bolted fault condition shall occur with the full rated AIC current of the fuse available.

3. The fuse shall fail in a safe manner with no physical or structural damage to the unit and any

failure shall be self-contained within the unit.

D. Surge Current Fuse Testing

1. The system design configuration shall be surge tested with fusing in series to verify that a transient

of maximum surge current capacity magnitude is fully suppressed without fuse failure, operation or

degradation.




1.5 SUBMITTALS

A. Product Data: For each type of product indicated, include rated capacities; shipping, installed, and operating

weights; furnished specialties; and accessories.

B. Test Documentation: Provide documentation of compliance for testing identified above at the values stated in

Section 2.2 below.

1. Copy of the test report documenting compliance with the single pulse surge current capacity

requirement specified in Section 2.2.F.

2. Copy of the test report documenting compliance with the minimum repetitive surge capacity

requirement specified in Section 2.2.G.

3. Documentation of the system's ability to meet the overvoltage requirements specified in Section

2.2.H.

C. Product Certificates: Signed by manufacturers of surge protection devices, certifying that products furnished

comply with the following testing and labeling requirements.

1. UL 1283 Certification.

2. UL 1449 Listing & Classification.

D. Field Test Reports: Written reports of tests specified in Part 3 of this Section. Include the following:

1. Test procedures used.

2. Test results that comply with requirements.

3. Failed test results and corrective action taken to achieve requirements.

E. Maintenance Data: For surge protection devices to include in maintenance manuals specified in Division 1.

F. Warranties: Special warranties specified in this Section.

PART 2 - PRODUCTS

2.1 MANUFACTURERS

A. Available Manufacturers: Subject to compliance with requirements, manufacturers offering products that may

be incorporated in the Work include, but are not limited to, the following:

1. Eaton Corporation & Cutler-Hammer Products

2. General Electric Company; Electrical Distribution & Control Div.


4. Square D Co. / Advanced Protection Technologies

5. Current Technology

6. Liebert, Control Concepts

7. L.E.A. Dynatech

8. United Power

B. Unit shall be manufactured in the USA by a qualified manufacturer of suppression filter systems equipment.




2.2 SURGE PROTECTION DEVICE (SPD)

A. Equipment is multi-stage parallel protector rated for operating voltage and phase, plus ground. The equipment

surge current capacity, based on an 8 x 20 microsecond waveform per ANSI/IEEE C62.41 Category C3

rating, shall be a minimum of 200,000 Amperes per phase at the service entrance, and a minimum of 150,000

Amperes per phase at branch panel locations.

B. The system protection modules shall contain a high performance, balanced metal oxide varistor (MOV) array

and filtering circuit.

C. Each individual surge protection unit shall be considered on its own merit. Units which rely on other external

or upstream units to achieve the required performance and UL 1449 listing are expressly excluded.

D. Maximum Continuous Operating Voltage (MCOV). Maximum continuous operating voltage (MCOV) of all

suppression components utilized in the unit shall not be less than 115% of the facility’s normal operating

voltage.

E. Protection Modes: The SPD shall provide line-to-neutral (L-N), line-to-ground (L-G), and neutral-to-ground

(N-G) protection.

F. Tested Single-Pulse Surge Current Capacity. Based on ANSI/IEEE C62.41 standard 8 x 20 microsecond

current waveform, and in accordance with NEMA Publication No. LS-1, the tested single pulse surge current

capacity, in amps, of the unit shall be no less than as follows:

Mode of Tested Single Pulse

Protection Surge Current

L-L 200,000

L-N 200,000

L-G 150,000

N-G 100,000

G. Minimum Repetitive Surge Capacity: The system shall be life cycle tested to 13,000 sequential ANSI/IEEE

C62.41 Category C3 waveforms (8 x 20 µsec at 10,000 amperes; 1.2 x 50 µsec at 20,000 volts) without failing

or degrading the UL 1449 surge suppression rating by more than 10%.

H. The SPD shall be capable of dissipating large amounts of average power that may be caused by overvoltage

events and voltage swells as well as repetitive transient impulses.

1. The SPD shall be capable of dissipating and surviving the effects of a 200% overvoltage condition

for 60 cycles at a power system line impedance of .7 ohms.

2. The SPD shall be capable of dissipating and surviving the effects of a 200% overvoltage condition

for 11 cycles at a power system line impedance of .3 ohms.

I. High Frequency Extended Range Tracking Filter: The unit shall include a high-frequency extended range

tracking filter and shall be UL 1283 Listed as an Electromagnetic Interference Filter. The filter shall reduce

fast rise-time, high-frequency, error-producing transients and electrical line noise to harmless levels, thus

eliminating disturbances which may lead to system upset. The filter shall provide minimum noise attenuation

as follows:




Attenuation Insertion Loss Insertion Loss

Frequency (ratio) (dB)

100 kHz 50-1 34

1 MHz 350-1 51

10 MHz 500-1 54

100 MHz 250-1 48

* Note: Standardized insertion loss data obtained utilizing MIS-STD-E220A 50 ohm insertion

loss methodology

J. The unit shall include solid-state, long-life, externally mounted LED visual status indicators that monitor the

on-line status of each phase of the unit. Provide two (2) Form-C contacts for remote monitoring when

suppressor module is inoperative, and two disturbance counters.

K. Performance Ratings: The system performance ratings shall be based on the UL 1449 listing ratings for IEEE

C62.41 Category B equipment. The maximum UL 1449 voltage clamping rating for each of the specified

protection modes shall be 800 volts for 480Y/277V systems and 400 volts for 208Y/120V systems.

L. Field Connections: The unit shall include mechanical lugs for each phase, neutral and ground, if applicable.

The lugs shall accommodate up to #2 AWG copper conductor.

M. Enclosure: Units shall be integral or external to switchboards and panelboards as indicated on Drawings.

2.3 WARRANTY

A. General Warranty: Special warranties specified in this Article shall not deprive Owner of other rights Owner

may have under other provisions of the Contract Documents and shall be in addition to, and run concurrent

with, other warranties made by Contractor under requirements of the Contract Documents.

B. Special Warranty: Written warranty, executed by manufacturer agreeing to repair or replace components of

surge suppressors that fail in materials or workmanship with five (5) years from date of Substantial

Completion.

PART 3 - EXECUTION

3.1 INSTALLATION

A. At service entrance, install on load side of main with ground lead bonded to service entrance ground.

B. SPD devices shall be installed integrally within (inside) or externally (outside) switchboards and panelboards

in compliance with the construction drawings, and in accordance with final submitted drawings and with

manufacturer’s written instructions.

C. Circuit breaker or fused disconnect integral to the SPD in accordance with manufacturers requirements. Fuses

rated at 200 kA interrupting capacity.

D. Wiring from the bus to the SPD shall not exceed 6 feet length and shall avoid unnecessary bends.




E. Coordinate location of field mounted suppressors to allow adequate clearance for maintenance.

F. All terminations shall be made with compression lugs.

3.2 FACTORY TESTING

A. Conduct manufacturer’s standard factory tests per approved submittal data.

B. Submit formal report of factory tests within ten (10) days of factory tests, stating tests conducted, acceptable

limits of such tests, actual test results, and original test data sheet with legible signatures of those conducting,

witnessing, and approving such tests.

C. Testing: Perform the following field quality control testing:

1. After installing surge protective devices, but before electrical circuitry has been energized, test for

compliance with requirements.

2. Complete startup checks according to manufacturer’s written instructions.

3. Perform each visual and mechanical inspection and electrical test stated in NETA ATS, Section

7.19. Certify compliance with test parameters.

4. Repair or replace malfunctioning units. Retest after repairs or replacements are made.

3.3 TESTS

A. The SPD shall be tested per manufacturer’s instructions.

END OF SECTION



PATHWAYS FOR COMMUNICATION SYSTEMS 27 0528 - 1

SECTION 27 0528 - PATHWAYS FOR COMMUNICATIONS SYSTEMS

PART 1 - GENERAL

1.1 SCOPE OF WORK

A. The work required under this section consists of providing conduits, boxes, raceways, etc., for

telecommunications wiring included in this project. Telecommunications wiring includes cables for

Data, Voice, Video, Audio, Security and future signal requirements.

B. The location at which all new telecommunications wiring will terminate is called a Telecom Outlet (TO).

C. Furnish and install split channel raceway and outlet boxes as specified in the Drawings and as specified

herein, and in accordance with Section 26 05 34.

D. Furnish and install conduit stubs in walls and floors for cable routes.

1.2 RELATED SECTIONS

A. Division 27, Section 27 1119 Communications Termination Blocks and Patch Panels.

B. Division 27, Section 27 1313 Communications Copper Backbone Cabling.

C. Division 27, Section 27 1323 Communications Optical Fiber Backbone Cabling.

D. Division 27, Section 27 1513 Communications Copper Horizontal Cabling.

E. Division 27, Section 27 1543 Communications Faceplates and Connectors.

F. Division 26, Section 26 0529 – ELEC Conduit Supports and Hangers.

G. Division 26, Section 26 0533 – ELEC Cable Trays.

H. Division 26, Section 26 0534 – ELEC Surface Raceways.

PART 2 - PRODUCTS

2.1 TELECOM OUTLETS (TO)

A. New construction TO consists of one (1) 4 11/16" square by 2 1/8" deep flush mounted box. Each outlet

box shall have a EMT conduit stubbed above the drop ceiling or extended into the hallway cabletray.

Conduits size is as follows:

For office outlets with 3 or less cables, use a 1” EMT conduit

For classroom outlets, use a 1.25” EMT conduit

For wall phones or ceiling outlets, use a 1” EMT conduit

For floor boxes, use a 1.25” EMT conduit.

B. Existing surface-mounted construction TO typically consists of surface-mounted Wiremold G5400 series

raceway including base, cover, end fitting, entrance end fitting, and (2) 1" EMT conduits stubbed out top

of entrance end fitting to above ceiling or out to nearest hallway distribution system. Size of the raceway

is site dependent.




C. The intent of the installation of the TOs which consist of the Wiremold raceway is as follows:

1. Where ceilings are accessible, the raceway and entrance end fitting shall extend above the ceiling

and the conduits installed above the ceiling in the room to the nearest hallway distribution system.

2. Where ceilings are partially accessible, or if the Drawings and/or Specifications indicate

installation of access panels, the raceway shall extend above the ceiling and the conduits installed

above the ceiling in the room to the nearest hallway distribution system.

3. Where ceilings are inaccessible or no ceilings exist, the raceway shall extend up as close to the

ceiling as practical to allow installation of conduits as high as possible to the nearest hallway

distribution system.

2.2 HORIZONTAL DISTRIBUTION SYSTEMS

A. Conduit System

1. Provide conduits secured to wall above corridor ceilings as shown on the Drawings or as specified

herein for installation of telecommunications cables. Any exposed conduit shall be painted except

conduit above suspended ceilings or in mechanical, electrical or telecommunication rooms. Color

to match that of surface installed upon or as directed by Architect.

2. Corridor conduits shall be 4" EMT, furnished in 10 foot lengths wherever possible, with no sharp

edges, reamed as necessary, supported at 6'-0" spacing. Conduits shall be sized and quantified to

account for handling cables in all TO conduits at 40% fill back to the TR and/or ER rooms.

Bushings and/or connectors on ends of EMT are required.

3. All conduits shall be installed stacked and attached to walls unless conditions exist which prohibit

this type of installation. When this condition exists, mount conduits side-by-side supported with

3/8” rod attached to building structure utilizing unistrut channel to form a trapeze. Double nut the

top and bottom at the unistrut. Utilize conduit clamp to secure conduits to unistrut.

4. Provide measured pull line in each conduit rated at 1200 lbs. minimum. Increments must be in

12” steps.

5. Grounding of conduits is not required per NEC #250-33, Exception No. 2.

6. Provide restorable fire stops inside and around conduits as recommended by UL1479 or ASTM

E814 for all conduits penetrating fire-rated construction. See Section 270500 for more firestopping

information.

B. Corridor Cable Tray System

1. Complete wall mounted or suspended aluminum cable tray system and necessary accessories shall

be provided as shown on plans. Install entire cable tray system in accordance with manufacturer’s

minimum installation practices and all local governing codes.

2. Coordinate installation of cable tray with other trades to allow a minimum of 12” above, 12” in

front, and 12” below of clearance from piping, conduits, ductwork, etc. Allowance must be

provided for access to the tray with reasonable room to work. Obstructions to the tray must be

minimized and cannot block more than 6 feet of the tray at any point in the run.

3. Submittal drawings, in the form of 8 ½”x 11” catalog cut sheets, shall be provided for the

following items: cable tray, fittings, accessories and load data.

4. Cable tray shall not be loaded beyond 60% of manufacturer’s recommended load capacity.

5. Install wall mounted cable tray on both sides of hallway as shown on drawings and where

applicable.

6. Where a new cable tray distribution system encounters a wall, install sufficient 4” EMT sleeves

through the wall so cabling does not exceed 20% fill.

7. Where cable tray is exposed below ceiling, install the appropriate solid bottom inserts to conceal

cables.

8. Install cable tray dropouts where large quantities of cables exit the distribution system.




9. Cable tray must be sized to facilitate sufficient growth capacity for migration cable plant to coexist

in same tray as existing cable plant, wherever possible.

10. Manufacturer of cable tray in corridors shall be Mono-Systems, Inc., B-Line Systems, Inc.,

Hubbell or approved equal.

C. Telecommunication Room Cable Tray System

1. TR cable tray shall completely wrap all walls within the room. Cable tray shall extend over all

equipment frames.

2. Cable tray shall be a minimum width of 2” high x 12” wide. Cable tray may be sized upwards if

fill ratio requirements need to be met based on cable quantities.

3. Manufacturer of tubular ladder type cable tray in telecommunication rooms shall be Homaco or

Chatsworth.

4. Cable tray shall be 12 inch cable runway. Fabricated of 3/8-inch x 1-1/2-inch x .065-inch wall

rectangular steel tubing, 1/2-inch x 3/8-inch x 1-1/2-inch

5. Rectangular steel tubing cross members welded at 12-inch intervals. Finish in gray enamel.

Homaco, Inc., Part Number TR10-12 or equivalent.

a. 12-inch Wall Angle Assembly Kit – Homaco, Inc., Part Number P12840H or equivalent.

b. 3-inch Channel Rack–To-Runway Mounting Plate - Homaco., Part Number JP0912 or

equivalent.

c. End Closing Tube - Homaco Inc., Part Number P413512HT or equivalent.

d. Corner Clamp - Homaco Inc., Part Number P403473H or equivalent (2 required per End

Closing Tube to complete assembly).

2.3 STATION CONDUITS

A station conduit is defined as a conduit that originates at the TO and rises within the walls or is exposed

from Wiremold raceway and extends up into the drop ceiling or over to the hallway distribution system.

A. Provide station conduits from TOs to above the drop ceiling or extend over to the hallway distribution

systems consisting of 1” EMT minimum or appropriate size as shown on the Drawings or as specified

herein for installation of telecommunications cables.

B. Provide an insulating press fit bushing on all telecommunications conduits including interconnecting

nipples and stub to distribution system. To prevent conflicts with other cables or conduits to cable tray,

the conduit shall be stubbed not less than 6" above or below conduit/cable tray center line. Where space

permits, every effort shall be made to bend station conduits down such that the flow of installed cables

promotes the minimum length back to the TR and the least amount of bends in the cables. Bushings must

be rated to be used in an environmental air handling space (Plenum).

1. Manufacturer of insulating bushing on all telecommunication conduits shall be Arlington or equal.

C. Provide measured pull line in each empty conduit to hallway distribution system.

D. Indelibly mark station conduit at hallway distribution end with Room # that conduit serves.

E. The use of 90 degree electrical pulling elbows is prohibited.

F. Do not include more than two 90 degree bends between pulling points when installing station conduit

runs. If the path of the station conduits requires more than 180 degrees of total bends, installation of an

appropriate sized junction box is required. See section 2.4 and 2.3 Attachment #1 for junction box

requirements.




G. Place an appropriate sized junction box in each individual station conduit run that exceeds 100ft in length.

H. The use of a third bend in a conduit is only acceptable if:

1. The total conduit run is reduced by 15%.

2. The conduit size is increased to the next trade size.

3. One of the bends is located within 12” of the cable feed end.

2.4 JUNCTION BOX REQUIRMENTS FOR STATION CONDUITS

A. If the station conduit route exceeds the 180 degree of total bends limitation, an appropriate sized junction

box is required within a straight section of the conduit run.

B. Each station conduit run requires a separate junction box. The sharing of a junction box by multiple

conduits is prohibited.

C. A junction box shall not be used in place of a bend. All junction boxes in station conduit paths shall be

installed within a straight section of the conduit run.

2.5 SERVICE ENTRANCE CONDUITS

A. Minimum of (4) 4” IMC conduits shall be installed from the nearest utility tunnel on outside of the

building as shown on the Drawings. Terminate entrance conduits entering ER rooms from below grade to

extend 4" above finished floor. Location of entrance conduits shall be within 12” of room corners.

B. Terminate entrance conduits entering ER rooms from above ceiling height to extend 4" below finished

ceiling or 12” above cable tray.

C. Terminate entrance conduits entering an ER rooms from below ceiling height to extend 4" into the room.

D. Entrance conduits shall be continuous into the building and to the ER. Securely fasten all entrance

conduits to the building to withstand any cable placing operation. Do not include more than two 90

degree bends between pulling points when installing entrance conduits.

E. On exterior wall penetrations, seal both sides of the wall around outside of conduit with hydraulic cement

to prevent water from entering the building. Seal the inside of the conduit on both sides with conduit

plugs, water plugs, or duct sealer to prevent water, vapors, or gases from entering the building.

2.6 PATHWAY REQUIRMENTS FOR ENTRANCE CONDUITS

A. If the entrance conduits exceeds the 180 degree of total bends limitation, an appropriate sized junction

box, manhole, or handhole is required.

B. As-built drawings of entrance conduit path required to be submitted to Construction Department before

covered with soil.

2.7 RISER CONDUITS

A. Minimum of (2) 4” conduits shall be installed between the ER room and each TR room as shown on the

Drawings.




B. Conduits entering ER and TR rooms shall be reamed or bushed and terminated not more than 4" from

entrance wall and within 12” of room corners.

C. Conduits entering ER and TR rooms from below floor shall be terminated not more than 4" above

finished floor.

D. Conduits for riser cables shall be continuous and separate from all other conduit or enclosed raceway

systems. Do not include more than two 90 degree bends between pulling points when installing riser

conduits. Where junction boxes are required, locate in accessible areas, such as above suspended ceilings

in hallways.

E. Conduits shall not be less than 4" trade size and be equipped with a measured pull line rated at a

minimum 1200 pound test.

F. Provide restorable fire stops inside and around conduits as recommended by UL1479 or ASTM E814 for

all conduits penetrating fire-rated construction.

G. Provide an insulating press fit bushing on all telecommunications riser conduits. Bushings must be rated

to be used in an environmental air handling space (Plenum).

1. Manufacturer of insulating bushing on all telecommunication conduits shall be Arlington or equal.

H. Riser conduits shall not be used for the distribution of horizontal cables.

2.8 FIRE STOPS

A. In all buildings, floor/ceiling assemblies, stairs, and elevator penetrations must be sealed with a 2-hour

fire stop assembly at a minimum, unless otherwise noted.

B. Walls must be sealed with a 2-hour fire stop assembly at a minimum.

C. Communication pathways requiring fire stopping shall utilize removable/re-usable fire stopping putties

for ease of Moves, Adds, and Changes.

D. All fire stopping penetrations shall conform to the recommended practices listed in UL1479 or ASTM.

2.9 TERMINAL CABINETS

A. Provide terminal cabinets where shown on the Drawings or as specified herein.

B. Cabinets must be vented to allow sufficient air change to cool electronics installed inside.

C. Cabinets shall be flush or surface mounted as required and shall be complete with back boards. Cabinets

shall be a minimum of 48”h x 48”w x 18”d, complete with a lockable door or doors, keyed appropriately

as indicated in the General Construction Notes for work required at all TR, ER and remote Utility Rooms

or spaces.




PART 3 - EXECUTION

3.1 GENERAL REQUIREMENTS

A. The intention of the telecommunications conduits is to provide a route between ER and TR rooms, routes

from the TRs throughout building floors to hallways, and routes from hallway distribution systems into

rooms to individual TOs for telecommunications cabling.

END OF SECTION



UNDERGROUND DUCTS AND RACEWAYS FOR COMMUNICATIONS SYSTEMS 27 0543 - 1

SECTION 27 0543 - UNDERGROUND DUCTS AND RACEWAYS FOR COMMUNICATIONS SYSTEMS

PART 1 - GENERAL

1.1 WORK REQUIRED

A. The work required under this Section consists of providing all primary, secondary,

telecommunications/data underground ducts and raceways, including manholes and handholes, for the

project as shown on Drawings and/or as specified herein.

1.2 RELATED SECTIONS

A. Division 31, Section 31 0000 – Earthwork (excavation, backfill, compaction, etc.)

B. Division 02, Section 02 0000 – Site Improvements (concrete work, blacktop, etc.)

C. Division 26, Section 26 0533 – Raceways and Fittings

D. Division 27, Section 27 0500 – Common Work Results for Communications

E. Division 27, Section 27 1102 – Main Equipment Room and Entrance Facilities

PART 2 - PRODUCTS

2.1 GENERAL

A. All ducts/raceways:

1. The number, size, raceway duct material and arrangement shall be as indicated on Drawings

and/or as specified herein.

2. May be non-metallic (PVC) or galvanized heavywall (GMC) conduit (as outlined in items B and C

below) and indicated on Drawings and/or as specified herein.

3. Shall be capped with manufactured caps (Duct Plugs) when installation is temporarily

discontinued.

4. Shall be checked by pulling a round wood or steel test mandrel, sized for each duct from both

directions to remove obstructions.

a. Mandrel for 5” duct shall be a minimum of 4.69” outside diameter.

b. Mandrel for 4” duct shall be a minimum of 3.75” outside diameter.

c. Mandrel for 3” duct shall be a minimum of 2.81” outside diameter.

d. Mandrel for 2.5” duct shall be a minimum of 2.19” outside diameter.

e. Mandrel for 2” duct shall be a minimum of 1.88” outside diameter.

5. Shall be cleaned by passing a wire brush mandrel and/or rubber duct swab (or approved

alternative) of appropriate size back and forth until all foreign materials and water are removed.

6. Shall be encased by a concrete envelope, minimum 3” cover on all sides or flowable backfill as

specified on the drawings.

7. Shall be installed using long radius sweeps, unless otherwise noted on Drawings or in Job Scope.

No more than 180 degrees of total bends in any one section of conduit.




8. Shall be 4" nominal trade size, unless specifically noted otherwise.

9. Shall be installed with minimum of 3" fall per 100' run toward manholes and away from buildings.

10. Shall be provided with Greenlee or equal continuous conduit measuring tape in each duct.

11. Shall be approved for correct formations before tying to prevent ducts from floating when concrete

is poured.

12. Provide a minimum of 12” separation between electric power and telecommunications/data ducts.

13. A minimum of 2’-6” bury depth (measured from concrete encasement to finished grade) is

required. Exceptions may be granted to avoid interference’s with approval of designer.

B. Non-metallic Raceways:

1. Carlon PVC Type DB with concrete encasement.

2. Plastic duct to meet NEMA TC-6 standards.

3. Plastic duct with straight couplings and appropriate cement. Couplings to be staggered

horizontally and vertically.

4. Used for all raceways except where rigid conduit is required.

5. Complete with threaded adapter when attached to rigid conduit.

6. Protected from deformation during stockpiling.

7. Perfectly circular in shape. Other configurations will not be permitted.

8. Have joints made with materials provided by, and installed per manufacturer's directions. Comply

with manufacturers requirements for bending and cutting.

9. Have joints covered with Scotch #88 tape as temporary concrete seal.

10. Provide with end bells flush with inside wall of manhole or vault.

C. Rigid Heavy Wall Conduit:

1. As specified in Section 26 0533 - Raceways and Fittings.

2. Used within excavated portion of building, including any areas where building excavation has

been backfilled.

3. Extended 10' minimum from building into undisturbed earth.

4. Used for all ells stubbed "in," or "out" or concrete bases for electrical equipment.

5. Used in areas of extended backfill, requiring maximum strength against shear.

6. Used where crossing under tunnel.

D. Concrete Envelope:

1. Size where shown on drawings, with raceways receiving not less than 3" concrete cover all around

and 1-1/2" between raceways.

2. Provided with support piers to undisturbed soil where necessary for permanent bearing.

3. 3000 psi, class 2, concrete ready mix per ASTM-94.

4. Provided with fine sand cover for initial curing except..

5. Rebar reinforcement is required where duct banks will cross roadways.

E. Backfill:

1. Per Section Earthwork (excavation, backfill, compaction, etc.).

2.2 PULL PITS/LARGER HANDHOLES

A. Pull Pits shall be as follows:

1. Provided by Electrical or Telecommunications Contractor as described on the drawings and/or as

specified herein.

2. Be reinforced concrete, 4500 psi and designed for truck loading.




3. Be 4' x 4' x 4' high inside dimensions.

4. Be as manufactured by Hartford Concrete Products.

5. Be provided with pulling irons opposite each duct opening.

6. Be complete with bonding jumper to reinforcing steel in each Section.

7. Manhole Cover shall be NEENAH #R-1640-D, with pickhole, lid lettered

"COMMUNICATIONS".

8. Provide 6" and 12" grade ring riser castings as required to bring lid up to proper grade, and

NEENAH #R-1979 rings for final adjustments. Internal diameter of grade rings to be not less than

internal diameter of manhole cover frame.

9. Set on leveled undisturbed earth with minimum 3” granular fill under entire manhole before

setting. If earth is disturbed during excavation, properly compact soil and provide 3" concrete

leveling pad under entire manhole before setting.

10. Support Cables in pull pits with galvanized #P1000 unistrut and #P-1753/4 porcelain cable

saddles.

2.3 CONDUIT

A. Conduit shall be a nonmetallic flexible raceway manufactured from High Density Polyethylene (HDPE)

for use in underground applications. It shall be a smooth walled interior and exterior configuration with

wall construction of SDR 13.5. Each conduit shall have a one-half inch pre-lubricated, woven, 1130lb.

minimum polyester tape made from low friction, high abrasion resistant yarns placed within the conduit

and secured at each end. Tape shall be printed with sequential footage markings for accurate

measurements. Each conduit shall be black with (3) unique colored stripes, to be specified in the part

number to replace the “XX” or as specified on the drawings. (i.e. 3D=3 buff stripes, 3E=3 gray stripes,

3F=3 green strips, 3G=3 lilac stripes).

1. Carlon 2” smooth-walled HDPE conduit, part #A13C9N7AXXC or equivalent as specified on the

drawings.

2. Carlon 1-1/4” smooth-walled HDPE conduit, part #A6C9N7AXXC or equivalent as specified on

the drawings.

3. Carlon 1” smooth-walled HDPE conduit, part #A5C9N7AXXC or equivalent as specified on the

drawings.

B. Toneable conduit shall be manufactured as indicated above but also include a copper conductor within the

wall of the duct to be used for locating the buried conduit. Conduit shall be black.

1. Carlon 2” smooth-walled toneable HDPE conduit, part #A13C9G7AXXC or equivalent.

2. Carlon 1-1/4” smooth-walled toneable HDPE conduit, part #A6C9G7AXXC or equivalent.

3. Carlon 1” smooth-walled toneable HDPE conduit, part #A5C9G7AXXC or equivalent.

2.4 CONDUIT COUPLERS

A. Aluminum threaded conduit couplers to be used to join two segments of smooth walled conduit together.

Non metallic couplers are not acceptable. Toneable conduit shall be coupled per the Manufacturer’s

instructions to maintain continuity of copper conductor.

1. Carlon 2” threaded aluminum coupler, part #P200 or equivalent.

2. Carlon 1-1/4” threaded aluminum coupler, part #P125 or equivalent.

3. Carlon 1” threaded aluminum coupler, part #P100 or equivalent.




2.5 DUCT PLUGS

A. Conduit sealing plugs to be used to seal unused conduit.

1. Carlon 2” blank duct plug, part #MAEPG5 or equivalent.

2. Carlon 1-1/4” blank duct plug, part # MAEPG4 or equivalent.

3. Carlon 1” blank duct plug, part # MAEPG2 or equivalent.

PART 3 - EXECUTION

3.1 CABLE SUPPORTS

A. The cable supports described on the drawings or herein are intended to assist the Contractor in obtaining a

satisfactory job and shall be altered to fit job conditions.

B. In general, all cables in manholes shall be supported on 4'-0" maximum centers for straight runs, on each

side of splices, and within 2'-0" of cable entrances to duct or termination.

3.2 EXCAVATION

A. Coordinated with other trades.

B. Have elevations and arrangements verified on job.

C. If soil conditions are such that because of the depth or any other reasons the trench/

excavation cannot conform to the size of the duct bank, provide forms and bracing as required.

D. Have grade stakes at 5' intervals in trench bottom.

E. Have trench bottom filled to exact elevation with a 3" concrete grade pad prior to installation of ducts.

Ducts are to be installed using 3" chairs and 1-1/2" separation to provide required cover. At Owner’s

discretion or as directed on Drawings the 3" grade pad may be deleted.

F. Contractor shall open entire length of trench and establish proper grades before beginning installation of

any portion of connecting duct runs.

G. Per Section 31 0000 - Earthwork and Section 02 0000 - Excavation, Backfill, Concrete, Asphalt Repairs

and Related Work.

H. Depth of excavation shall be such that the required bury depths (top of concrete encasement) are met.

Any deviation from required depths shall be approved by design engineer prior to installation.

3.3 CONCRETE ENVELOPE

A. Protected against freezing, etc., as required in General Construction Specification.

B. Installed so no honeycombing occurs and be properly vibrated with small vibrator. Do not vibrate

between ducts.

C. Size where shown on drawings, with raceways receiving not less than 3" concrete cover all around and 1-

1/2" between raceways.




D. Concrete for the duct bank shall be placed in such a way that the duct bank will not be disturbed and that

the sides of the trench do not crumble, using splash boards, proper placement, etc. The vertical drop of

concrete from chute shall not exceed 30 inches.

E. Concrete shall be poured continuous from manhole to manhole. No pours shall originate between

manholes.

F. Interval between base or intermediate spacers shall not exceed 8 feet with a minimum of two supports per

length of duct.

G. Make provisions, such as nylon ties, to prevent the ducts from floating when concrete is poured.

H. Color top layer of concrete encasement by using “ORANGE” (for telecommunications) chalk dust while

still wet.

3.4 REINFORCING

A. Shall be installed:

1. Where noted on drawings and/or as specified herein.

2. Where crossing trenches for other work.

3. Where connected to buildings and manhole walls, anchored thereto with projecting re-bars

provided by this Contractor.

4. At joints between pours of concrete envelope.

5. If continuous pour is impractical, provide (4) #4 reinforcing bars extending six feet (6’) into first

and second pour.

6. Where trenches cross roadways.

B. Reinforcing shall be supported from bottom of trench at least one inch.

C. Arranged to avoid contact between rods to prevent inductive heating of steel at reinforcing overlaps.

3.5 BACKFILL

A. Not be installed until after concrete has reached initial set.

B. Per Section Earthwork (excavation, backfill, compaction, etc.).

C. The Owner will do all re-seeding, unless specifically indicated on Drawings and/or as specified herein.

D. Backfill around manholes with select granular material free of broken pavement, rocks, frozen material,

etc. Backfill in 6” layers and tamp each layer to ensure complete compaction, especially under pipes and

conduit. Place backfill evenly on all sides of manhole to prevent racking. Backfilling should be

completed on the same day the manhole is placed.

E. In unpaved areas, the ground should be sloped away from the manhole frame and cover to provide proper

drainage.

F. Where the manhole is to be installed under a paved area, such as a parking lot, the surface of the paving

should be graded slightly away from the manhole frame and cover.




G. Where the manhole is to be installed under a concrete sidewalk, slab or pavement, expansion joint

material shall be placed between the panel vault frame and concrete. A 2” minimum sand cushion shall

be provided between the top surface of the manhole and the bottom of the concrete sidewalk, slab or

pavement to prevent stress on the casting during freeze and thaw conditions.

H. Restoration of the area where the manhole structure is installed shall meet the requirements of the Owner.

3.6 AS-BUILTS

A. Contractor shall provide as-built information to Owner prior to final payment for this work.

B. As-built information shall be in red-lined format on a copy of construction drawings. Indicate location of

all underground routes, if different than original drawing.

C. If construction drawings are not utilized, Contractor shall provide all telecommunications location

information on an accurate scaled site plan.

D. All as-builts will be marked with the proper XYZ coordinates at a minimum of every 20ft. There

coordinates shall be tied to the nearest benchmark and other permanent landmarks.

END OF SECTION