1.general information

7/28/2019 1.General Information

1/48

1General Information

1.1.0 Introduction

1.1.1 Project To-Do Checklist (Electrical)

1.1.2 Drawing Design Checklist (Electrical)

1.1.3 Site Design Checklist (Electrical)

1.1.4 Existing Condition Service and Distribution Checklist1.1.5 Design Coordination Checklist (Electrical)

1.1.6 Fire Alarm System Checklist

1.2.0 Electrical Symbols

1.3.0 Mounting Heights for Electrical Devices

1.4.0 NEMA Configuration Chart for General-Purpose Nonlocking Plugs and

Receptacles

1.4.1 NEMA Configuration Chart for Specific-Purpose Locking Plugs and

Receptacles

1.5.0 IEEE Standard Protective Device Numbers

1.6.0 Comparison of Specific Applications of NEMA Standard Enclosures for

Indoor Nonhazardous Locations1.6.1 Comparison of Specific Applications of NEMA Standard Enclosures for

Outdoor Nonhazardous Locations

1.6.2 Comparison of Specific Applications of NEMA Standard Enclosures for

Indoor Hazardous Locations

1.6.3 Knockout Dimensions for NEMA Standard Enclosures

1.7.0 Formulas and Terms

1.8.0 Introduction: Typical Equipment Sizes, Weights, and Ratings

1.8.1 Typical Equipment Sizes: 600-V Class

1.8.2 Transformer Weight (lb) by kVA

1.8.3 Generator Weight (lb) by kW

1.8.4 Weight (lb/lf) of Four-Pole Aluminum and Copper Bus Duct by Ampere

Rating

1.8.5 Conduit Weight Comparisons (lb per 100 ft) Empty

1.8.6 Conduit Weight Comparisons (lb per 100 ft) with Maximum Cable Fill

1.9.0 Seismic Requirements

1.1.0 Introduction

This section provides information of a general nature that is needed frequently byelectrical design and construction professionals. Information that follows in subse-

quent sections is more specific in its applications.

Section

1.1


2/48

1.1.1 Project To-Do Checklist (Electrical)

1.2 Section One

1.1.1

(continued)


3/48

General Information 1.3

1.1.1

(continued)


4/48

1.4 Section One

1.1.1


5/48

1.1.2 Drawing Design Checklist (Electrical)


1.1.2

(continued)


6/48

1.6 Section One

1.1.2

(continued)


7/48


1.1.2


8/48

1.1.3 Site Design Checklist (Electrical)

1.8 Section One

1.1.3

(continued)


9/48


1.1.3


10/48

1.1.4 Existing Condition Serviceand Distribution Checklist

1.10 Section One

1.1.4

(continued)


11/48


1.1.4

(continued)


12/48

1.12 Section One

1.1.4


13/48

1.1.5 Design Coordination Checklist (Electrical)


1.1.5

(continued)


14/48

1.14 Section One

1.1.5

(continued)


15/48


1.1.5


16/48

1.1.6 Fire Alarm System Checklist

1.16 Section One

1.1.6

(continued)


17/48


1.1.6

(continued)


18/48

1.18 Section One

1.1.6

(continued)


19/48


1.1.6


20/48

1.2.0 Electrical Symbols

Electrical symbols can vary widely, but the following closely adhere to industrystandards. Industry standard symbols often are modified to meet client- and/or

project-specific requirements.

1.20 Section One

1.2.0

(continued)


21/48


1.2.0

(continued)


22/48

1.2.0


23/48


1.2.0

(continued)


24/48

1.24 Section One

1.2.0

(continued)


25/48


1.2.0

(continued)


26/48

1.26 Section One

1.2.0

(continued)


27/48


1.2.0

(continued)


28/48

1.28 Section One

1.2.0

(continued)


29/48


1.2.0

(continued)


30/48

1.30 Section One

1.2.0


31/48

1.3.0 Mounting Heights for Electrical Devices

Mounting heights for electrical devices are influenced by and must be closely coordi-nated with the architectural design. However, there are industry standard practices

followed by architects as well as code and legal requirements, such as Americans

with Disabilities Act (ADA) guidelines. The following recommended mountingheights for electrical devices provide a good guideline in the absence of any specific

information and are ADA compliant.


TABLE 1.3.0

(continued)


32/48

1.32 Section One

TABLE 1.3.0

(continued)


33/48


TABLE 1.3.0


34/48

1.4.0 NEMA Configuration Chart for General-Purpose Nonlocking Plugs andReceptacles Reproduced from NEMO WD 6-88, Wiring DevicesDimensional Requirements(revision and redesignation of ANSI C73-73).

1.34 Section One

1.4.0

( 1999, NFPA)


35/48

1.4.1 NEMA Configuration Chart for Specific-Purpose Locking Plugs andReceptacles Reproduced from NEMO WD 6-88, Wiring DevicesDimensional Requirements(revision and redesignation of ANSI C73-73).


1.4.1

( 1999, NFPA)


36/48

1.5.0 IEEE Standard Protective Device Numbers

1.36 Section One

TABLE 1.5.0

(continued)


37/48


TABLE 1.5.0

(continued)


38/48

1.38 Section One

TABLE 1.5.0

(continued)


39/48


TABLE 1.5.0

(continued)


40/48

1.40 Section One

TABLE 1.5.0

(continued)


41/48


TABLE 1.5.0


42/48

1.6.0 Comparison of Specific Applications ofNEMA Standard Enclosures for IndoorNonhazardous Locations

1.42 Section One

TABLE 1.6.0

TABLE 1.6.1

TABLE 1.6.2(If the installation is outdoors and/or additional protection is required by Tables1.6.0 and 1.6.1, a combination-type enclosure is required. See paragraph 3.2.)

1.6.1 Comparison of Specific Applications ofNEMA Standard Enclosures for OutdoorNonhazardous Locations

1.6.2 Comparison of Specific Applications ofNEMA Standard Enclosures for IndoorHazardous Locations


43/48

1.6.3 Knockout Dimensions for NEMAStandard Enclosures


TABLE 1.6.3


44/48

1.7.0 Formulas and Terms

1.44 Section One

1.7.0


45/48

1.8.0 Introduction: Typical Equipment Sizes,Weights, and Ratings

Tables 1.8.1 through 1.8.7 provide typical equipment sizes, weights, and ratings to

assist in the preliminary design and layout of an electrical distribution system.The reader is cautioned that these data are only representative of industry manu-

facturers and should consult specific vendors for detailed information. This infor-

mation could prove useful in determining initial space requirements and weightimpacts for structural purposes.

1.8.1 Typical Equipment Sizes: 600-V Class


TABLE 1.8.1


46/48

1.8.2 Transformer Weight (lb) by kVA

1.46 Section One

TABLE 1.8.2

1.8.3 Generator Weight (lb) by kW

TABLE 1.8.3


47/48

1.8.4 Weight (lb/lf) of Four-Pole Aluminum andCopper Bus Duct by Ampere Rating


TABLE 1.8.4

1.8.5 Conduit Weight Comparisons(lb per 100 ft) Empty

TABLE 1.8.5

1.8.6 Conduit Weight Comparisons(lb per 100 ft) with Maximum Cable Fill

TABLE 1.8.6


48/48

1.9.0 Seismic Requirements

The design of seismic restraint systems for electrical distribution equipment andraceways is usually done by a structural engineer through performance specifications

by the electrical design professional. It is therefore necessary for the electrical

designer generally to be familiar with the seismic code requirements and the seismiczone that are applicable to a project. The following will serve as an introduction.

1.48 Section One

1.9.0

1.general information

Documents