specification -electrical & communication

SPECIFICATION FOR ELECTRIFICATION AND PLANT COMMUNICATION SYSTEM

Hindustan Petroleum Corporation Limited of 89

PART-I

ELECTRIFICATION



CONTENTS

Sl. No Description

01.00 Introduction

02.00 Intent of Specification

03.00 General Instructions

04.00 Scope of Work

05.00 Technical Specifications

06.00 Technical specifications of Cables

07.00 LT Equipment

08.00 Feeder Pillar & LDB / SDB/ DB

09.00 Illumination system

10.00 Hazardous Area

11.00 Earthing & Lightning protection

12.00 Erection Guidelines

13.00 Testing and commissioning

14.00 Data, Drawings & Documents

15.00 Preferred makes

16.00 Applicable standards and codes

17.00 Quality Assurance, Inspection and Testing

18.00 Information to be submitted by Successful Bidder

19.00 Special Terms and Conditions

20.00 Specification for Communication System

21.00 Time schedule



01.00 INTRODUCTION

M/s Hindustan Petroleum Corporation Limited is setting up green field Petroleum Storage cum Distribution Installations at Bihta, near Patna. The Depot at Bihta, near Patna shall have receipt facility by Rail Wagons and onward distribution by Road Tankers. The storage and distribution facilities at Bihta have been planned for both White Oils (MS/HSD/SKO/Ethanol/Additives) and Black Oil (Furnace Oil/ Bitumen). The white Oil facility shall be fully automated (except Wagon Unloading Siding & Pumps) whereas the Black Oil facility shall be Manually operated with A/G Tanks key parameters inputs to Automation system for monitoring purpose.

02.00 INTENT OF THE SPECIFICATION

The intent of this specification is to describe in detail the entire Electrification, Illumination & Communication system required for the above Depot, which the Bidder shall undertake in full compliance with the contract documents. This document elaborates the Bidder‟s work involved in erection, testing and commissioning of the electrical Equipment supplied by owner/ testing and commissioning of the motors and other items to be installed by other agency. This document also includes Bidder‟s scope of work involved for items to be supplied, erected, tested and commissioned. These items are elaborated under different schedules under this Technical Specification.

03.00 GENERAL

a) These instructions shall be read in conjunction with all the commercial documents appended to this document. In case of contradictions in the clauses under TS the most stringent one shall prevail.

b) All the equipment supplied by the contractor shall be new and conforming to relevant latest BIS, safe engineering practices and codes. These shall be tested and commissioned as required and no separate payment shall be made unless otherwise specified in the schedule of rates.

c) Any work not conforming to the execution drawings, Specification or codes shall be rejected forthwith and the contractor shall carryout the rectification at his own cost.

d) The contractor shall carry out the various tests as enumerated in the technical specification and the technical documents, which, may be furnished to him during the performance of the work.

e) Before an electrical system is made live, the electrical contractor shall carry out suitable tests to establish to the satisfaction of owner that installation of all equipment, wiring and connections have been correctly done and are in good working condition and will operate as intended.

f) All tests shall be conducted in the presence of the Engineer-incharge or his authorized representative unless he waives this requirement in writing. All the testing equipment required, to carry out the tests must be supplied by the contractor. The tests shall be recorded on approved pro-forma and certified records of the tests shall be submitted to the owner / Engineer –incharge.



g) After completion of all tests and rectification of all defects pointed out during final inspection, plant start up trials would be commenced. During the start-up trials, contractor shall provide skilled / unskilled personnel & supervise the same.

h) All debris / unserviceable materials shall be disposed off as per the direction of engineer-in–charge and the premises shall be kept clean & tidy. The rate for the same is deemed to be included in the offer.

i) The contractor shall supply skilled technicians / laborers as per job requirement to ensure compliance with standards / specifications.

j) The offered price for supply & erection of electrical equipment & communication system is deemed to include expenses towards testing and inspection at manufacturer‟s works, documentation, operating manuals, drawings, statutory approvals, clearing of site / building all unserviceable materials etc.

k) Following Items shall require inspection and clearance by Third Party Inspection Agency (EIL/BV/DNV/PDIL/ Mecon / Llyod) as per approved QAP prior to dispatch to site. The quoted rate by bidder is deemed to be inclusive of the TPI charges.

a. All FLP Items.

b. HV and MV Cables

c. EPABX, PA System and VHF System

l) Although every required item of work may not be explicitly described in the specification, it is the owner's intention to furnish the Bidder with every detail necessary to complete the specified work with the exception of those items of work listed under "work by others".

m) It is the responsibility of the Bidder to assess the type and magnitude of work involved based on information furnished by the owner / in the schedules of this document and general field conditions.

n) It is the Bidder‟s responsibility to specially list out in his quotation, all items and any other items left out in the schedule of units, but which are necessary for the completion of work assigned, along with unit prices. If the unit price is not already indicated then all such items are deemed to be included in Bidder‟s scope.

o) Bidder shall clearly indicate deviation, if any, from this specification, along with un-priced bids.

p) Bidder shall quote for complete work specified in the document.

q) Bidder shall obtain from Owner / additional details / data, if any, required to submit proper quotation. The Bidder is advised to visit site and assess the conditions prevailing before submitting the offer.

r) The word 'installation' wherever mentioned in this document shall mean erection, testing and handing over of item /equipment after successful commissioning.

s) Information and documents furnished by the Bidder for each item of work shall be complete, without any cross reference to other parts.



t) The owner reserves the right to omit any one or more items of work at any item of the contact without assigning any reason whatsoever.

u) The Successful Bidder has to make his own arrangements for construction power, water, workshop office etc., at site. The cost of the same is deemed to be included in the offer.

03.01 Data / Information to be furnished by Bidder with tender

a. List of works executed similar to the one covered under this tender along with

contract value and the period of completion.

b. List of tools and tackles, testing / handling equipment available with Bidder and required for completion of job detailed in this specification.

c. Bar chart indicating schedule of manufacture, delivery at site, erection, testing and

commissioning of individual equipment.

d. Copy of the License for 11kV issued in name of the company / personnel of the bidder‟s organization.

e. Documents required towards fulfillment of Technical and financial Bid Qualification

criteria.

03.02 Price

Prices quoted shall be firm without any escalation till completion of the job assigned and shall be inclusive of all incidental charges/expenses whatsoever including safe storage at site, handling /transportation, erection, testing, commissioning, documentation etc as required for the completion of job in line with the scope of work.

All consumables and spares, required for the installation, testing and commissioning, shall be supplied by the contractor till the stage of handing over. Unit rates for installation shall include such consumable. Bidder shall furnish list of consumable / spares recommended by manufacturer for each equipment, for two years normal operation.

The contractor's responsibility shall be for the complete work including supply of materials as per Scope and he shall not absolve him-self of any unintentional errors or omissions in the description of the scope.

Prices indicated by the Bidder shall also be deemed, to include and cover, but not limited inter-alia, the following:

Providing touch up final paint etc., wherever required after installation. Handling & transportation of materials, at stores/ place of work, temporary connections/disconnection, Cost of tools & tackles, security till handing over etc.

03.03 Training

Contractor shall train the work force of customer with his technical and supervisory personnel for safe and efficient operation and maintenance of the equipment and system installed by the contractor. The Number of personnel to be trained and the duration and structure of the training shall be mutually discussed and finalized.

03.04.00 Spares



03.04.01 Commissioning Spares

The Bidder shall include in his offer sufficient quantity of commissioning spares required for commissioning of all equipment and for their efficient operation until their provisional acceptance after demonstration of satisfactory performance.

03.04.02 Operational Spares Applicable for Plant communication system. Refer spec 03.05 Modifications and Statutory Compliance

The owner/ shall be at liberty to make modifications in the original scope awarded to the contractor and also in the designs that may appear to be necessary due to various reasons while awarding the contract or during the progress of work. (The Offer submitted shall be valid for the revised scope if any). The contractor should not object to this and he shall be bound to carry out all such alterations, within the time schedule even if this results in excess work over the estimated quantities or in supply of extra items.

Modification required by the owner/consultant/statutory bodies, to correct, defective workmanship, non-standard installation and non-compliance of statutory regulation by the contractor, shall be carried out free of cost by the contractor within the time schedule.

Contractor shall furnish drawings/sketch/corrected print indicating the modifications to be

carried out at site for approval of consultant/owner. If permitted to carry out the modification, contractor shall furnish the revised drawing/corrected print to the consultant/owner with proper revision number, date of revision, after carrying out the modification. All the modifications shall be incorporated before submitting copies of as built drawings.

The contractor shall complete and fulfill all formalities with the statutory licensing

board having jurisdiction in the area before commencement of work and for getting installation energized.

It shall be the responsibility of the contractor to comply fully with requirements of relevant

standards, Indian Electricity Act / Rules, CEA regulations, Regulations of Insurance Association of India and Factories Act, Chief Controller of Explosives while carrying out work as per this specification. Further, it shall be responsibility of the contractor to prepare and submit to the electrical Inspectorate and statutory agencies all necessary drawings, calculations, test certificate for commencing the work. He shall submit completion report to Statutory Authority (after completing the particular work) and arrange for inspection of the work completed. The approval from statutory authority shall include all equipments irrespective of the fact whether the equipments are supplied/erected/commissioned by the bidder or not.

Further, he shall obtain the final approval and safety certificate for the works thus completed. Owner shall however bear the necessary inspection fee levied by statutory authority other than which the owner shall bear no responsibility. Any modifications suggested by the Statutory bodies either during drawing approval or during inspection of the installation shall be carried out, by the contractor, free of cost and without affecting agreed milestone.

No separate payment will be made for any installation accessories like Junction boxes,

pull boxes, nails, screws, bolts, nuts, clamps, mounting brackets/down-rods, rawl-plugs (Anchor bolts), Fan hooks/boxes, cable trough required for complete lighting installation.



As such the cost of the installation accessories shall be included along with respective equipment.

03.06 Foundation channels / minor civil & structural works The frames of equipment shall be secured by means of anchor bolts to the foundation or

Channel frame tag welding to the embedded plates in floor / foundation. Minor civil works like closing of pockets / openings in floors / walls, chipping of foundation, leveling, grouting, patching and finishing required for proper installation of equipment or earth wire / strip for earthing shall be done by the contractor himself without any additional charges. All structural supports for electrical equipment / cable structures etc., as required by site condition shall be provided by the contractor. Where ever erection requires chipping, drilling/removal of plaster in brickwork or RCC, the same shall be made good by the contractor to the pre-existing state.

The cost of all the above works is deemed to be included in the overall quoted price. 03.07 License & Supervisory Personnel Contractor shall have valid license and before commencement of execution of the work

and shall post senior personnel having necessary technical, financial and administrative power as in charge of site office, to carry out the site work satisfactorily at required pace within time schedule.

Contractor shall deploy skilled and supervisory personnel required for the work and shall

furnish resumes showing background and experience of supervisory personnel he intends to deploy.

All line men, wire men, electricians, supervisors and engineers engaged by the

contractor or his sub-contractor shall possess necessary authority & the same shall be submitted for verification if called for.

03.08 Sub Contracting DELETED 03.09 Co-ordination with other Agencies at site.

Contractors & their sub-agencies, if any, shall work harmoniously with other Agencies working at site to ensure smooth timely execution of the project. Contractors shall adhere to site orders / written instructions issued by Engineer-in-Charge / Owner. Non-compliance of site instructions by the contractor will be treated as breach of contract and recovery from bills and other penal actions will be affected solely at the discretion of Engineer-in-Charge / Owner. As equipments to be erected and commissioned are supplied by other vendors, the contractor shall coordinate with vendor‟s representative for smooth commissioning activities including participation in joint site meetings.

03.10 Work by Others

The scope of supply of materials/ equipments shall be as per the Schedule of quantities. Separate orders have been placed on agencies for Tankage Construction, Piping & Mechanical works, Civil & Structural works, Roads & Drains, RCC driveway, Railway Siding works, ETP, Terminal Automation system etc.

03.11 Offer for Operation and maintenance Operation and Maintenance of the complete plant for six months after final acceptance

by owner. However, the bid shall be evaluated for arriving at the lowest bidder by considering the quoted rate for operation and maintenance. A separate order, at the option of the owner, shall be issued to the successful vendor after final acceptance of



works by owner. The rates quoted shall be kept valid till two months after acceptance of works by owner.

03.12 Drive Ratings

The rating of drives, indicated in SLD / Specification are tentative. The Exact rating of drives will be confirmed during detailed Engineering stage. As such the rating / size of components in outgoing motor feeders shall be provided based on final rating as per approved Drawings / Data sheet. Bidders shall note that no extra claims will be entertained for such modifications / alterations.

04.00 SCOPE OF SUPPLY OWNER‟S SCOPE OF SUPPLY

A. 11KV VCB PANEL B. 11KV/0.433 KV OIL FILLED ONAN TRANSFORMER WITH OIL. C. LT SWITCHGEAR VIZ. PCC-1, PCC-2, MCC DAY LOAD, MCC-SIDING, MCC-

BITUMEN, MCC-FO, MLDB & MOVDB D. VFD PANELS E. PERMANENT POWER SUPPLY FROM SEB UPTO 2-POLE STRUCTURE F. DG SETS WITH AMF PANEL G. MOTOR OPERATED VALVES H. PUMPS WITH 415V 3-PHASE SQUIRREL CAGE INDUCTION MOTORS I. LIGHTING DISTRIBUTION BOARD WITH WIRING & LIGHTING/POWER

FIXTURES IN RCC BUILDINGS AND CAR PARKING SHED. J. BOREWELL PUMPS K. FLOOD LIGHT MAST WITH FIXTURES AND FEEDER PILLAR (IN FULLY

ERECTED AND PARTIAL COMMISSIONED CONDITION ALONG WITH DEDICATED EARTHPITS)

L. LOCAL CONTROL PANELS FOR FIRE WATER ENGINES

CONTRACTOR‟S SCOPE OF SUPPLY The broad scope of supply shall be as under: A. HV, MV XLPE POWER CABLES & CONTROL CABLES. B. FLP LIGHTING FIXTURES WITH CONTROL GEARS IN STRUCTURAL SHEDS

SUCH AS.

WATCH TOWER

TT GANTRY(S)

PRODUCT PUMP HOUSE(S)

CALIBRATION TOWER

FIRE WATER PUMP HOUSE

SEALING PLATFORM

FOAM SHED

LUBE WARE HOUSE

GREASE DRUM YARD

TRANSFORMER AREA

2 POLE STRUCTURE AREA

SAMPLE ROOM IN ADMN BLDG

TANK TRUCK PARKING AREA

OTHER PLACES AS DIRECTED

C. FLP LIGHTING & POWER DISTRIBUTION BOARDS WITH INCOMING AND OUTGOING FEEDERS AND CONTROLS IN ABOVE SHEDS

D. LIGHTING POLES WITH LIGHTING FIXTURES & CONTROL GEAR.



E. NON FLP LIGHTING FIXTURES F. WP & FLP SC/DC CABLE GLANDS & LUGS. G. EARTH ELECTRODES AND GI ROPES, EARTH FLATS AND WIRES. H. FLP EXHAUST FANS & CEILING FAN I. HT TERMINATION KITS J. GI PERFORATED/ LADDER TRAY K. PLANT COMMUNICATION SYSTEM (EPABX, TELEPHONE, PA & VHF) L. SAFETY EQUIPMENT & PERSONAL PROTECTIVE EQUIPMENTS M. TELESCOPIC ALUMINIUM LADDER OF DIFFERENT HEIGHTS N. GI PIPES , STRUCTURAL STEEL & CHEQUERED PLATE. O. CABLE ROUTE & JOINT MARKERS, EARTH PIT BOARDS P. LOCAL CONTROL STATIONS Q. ENGINEERING AND DESIGN R. EARTHING AND BONDING JUMPERS FOR PIPING

04.01 SCOPE OF WORK

a) Drawing preparation, approval from owner, procurement, shop testing,(TPI

inspection for selected items as per tender) supply, transportation, transit insurance, unloading, handling, temporary storage, erection, testing, commissioning, documentation and handing over of Supply Items as per scope of supply, schedule of rates, enabling works ,specification, terms and conditions.

b) Design and preparation of Overall Lighting and Earthing layout including Lighting and earthing design/ drawings for individual Structural Sheds. Lighting Design and drawing of RCC Building and Car Parking Shed is outside the scope of the Bidder.

c) Shifting from owner‟s store, erection, testing and commissioning of owner supplied HT & LT switchgears and transformers.

d) HT & LT power, control and signal cable laying in RCC trenches, cable trays, buried cable trenches, on steel & RCC structures etc including jointing, testing, end termination and commissioning.

e) Installation of Plant earthing network with GI flat and GI pipe earth electrode including local grid for Building, structures, lightning protection grid all complete as per IS-3043, OISD standard, IE rules and the tender specification.

f) Supply of all labor, supervision, tools and tackles, testing equipments, consumables, materials and all other erection accessories not specifically mentioned herein but required to complete in all respect, installation, testing and commissioning of all equipments covered under this contract.

g) All liaison work with CEA/ Local electrical Inspectorate right from submission of application, drawings, test certificates to Inspection of Plant and until receipt of approval and completion of energization of entire plant equipment. All Statutory Deposits made to CEA in this regard shall be reimbursable on production of receipt.

h) As Built documentation: This shall comprise of submission of 6 sets ( 1 original + 5 copies) of following documents in hard form including one set in soft form (CD/DVD) in pdf/ Autocad format.

(i) Cable Schedule (ii) Overall Lighting & Earthing Layout (iii) Lighting and Earthing layout of individual Building/ Structure (iv) All field Test records (v) All OEM‟s Test certificate, CMRI Certificates etc (vi) All OEM‟s drawing, catalogues (vii) Fire Alarm system drawing (viii) PA System Drawing (ix) Termination Details (x) Plant Cable layout (Outdoor) (xi) Final Approval from CEA



(xii) License for VHF set from DoT

04.02 The cable glands (WP/FLP), plugs (WP/FLP) for all equipments supplied by

the contractor shall be in the scope of contractor and no extra payment shall be made for those glands/plugs.

04.03 Construction of suitable covered equipment storage building / sheds and site construction office with all required facilities, illumination etc. shall be done by the agency at their own cost.

04.04 Watch & ward at contractor‟s store / working place, working place at plant site, erection sites for safe custody of equipment erected by contractor till the equipment are handed over to purchaser. Contractor shall be held responsible for any theft of equipment, components etc. kept under their custody.

04.05 Transportation of equipment and materials from plant / contactor‟s stores to the site for erection and commissioning purpose. Provision of proper handling equipment e.g. winches, lifting jacks, slings, pulleys, ropes etc. as well as all erection tools and tackles, welding and gas cutting machines, power tools, hand lamps, pipe bending machine, cable crimping tools, gauges, scaffoldings, ladders, local illumination etc. including cables required for connection of these items.

04.06 Provision of construction power supply including supply of construction power supply boards, cables etc. & maintenance of same during contract period. Purchaser shall not provide any construction power but shall be arranged by contractor.

04.07 The scope of work of the contractor shall also include co-ordination with other contractors at site, pre-commissioning no load / load tests, integrated on load testing & commissioning, handing over, conducting PAT / FAT and liquidating defects etc. for the complete installation work carried out by the contractor.

04.08 Obtaining Statutory approvals for the entire electrical installation Supplied, installed, tested and commissioned or owner supply items installed, tested and commissioned under this Contract.

05.00 DELETED

06.00 TECHNICAL SPECIFICATIONS OF CABLES (H.T. / L.T. / CONTROL / LIGHTING)

AND ACCESSORIES

06.01 GENERAL CONSTRUCTION

The cables shall be suitable for laying in trays, trenches, ducts and conduits and for underground buried installation with uncontrolled backfill and possibility of flooding by water and chemicals. Also cables shall be suitable for system particulars, site conditions and environment conditions specified. The conductor shall be stranded and compacted circular / shaped for all cables. Outer sheath of all PVC and XLPE cables shall be black in colour. In addition suitable chemicals shall be added in to the PVC compound of the outer sheath to protect the cable against rodent and termite attack. The outer sheath of PVC and XLPE cables shall possess ST-2 PVC properties meeting requirements as per IS.

Sequential marking of the length of the cable in metres shall be provided on the outer sheath at every one-metre. The embossing shall be legible and indelible.



The overall diameter of the cables shall be strictly as per the values indicated in the

technical information furnished along with bid subject to a maximum tolerance of 2 mm up to overall diameter of 60 mm and + 3 mm for beyond 60 mm.

PVC / Rubber end caps shall be supplied free of cost for each drum with a minimum of eight per thousand metre length. In addition, ends of the cables shall be properly sealed with caps to avoid ingress of water during transportation and storage.

The vendors shall specifically note that any of the make of cable accessories listed in tender documents will be used for termination or jointing of the cable offered. But for total project only one make of these shall be adopted.

06.02 XLPE CABLES

Power cables for 11kV (UE) shall 3 core and 1100V shall be 3.5/4 core with compact

circular / sector shaped stranded electrical Aluminium/ copper conductor, H tamper with extruded conductor shielding of semi-conducting material. XLPE insulated, with insulation shielding over individual cores consisting of extruded semi-conducting compound followed by lapped semi-conducting material and copper tape, cores stranded together with a holding tape provided with a common covering of extruded inner sheath of type ST2 compound, galvanised round steel wire / strip armoured and PVC outer sheath of type ST2 compound system as per IS: 7098 (Pt-II)-1973 as amended upto date suitable for unearthed system and as detailed below.

All cables rated 6.6 kV and above shall be provided with both conductor screening and insulation screening. The conductor shall be provided with non-metallic extruded semiconductor screen. The core insulation shall be with cross-linked polyethylene insulating compound dry cured applied by extrusion. It shall be free from voids and shall withstand all mechanical and thermal stresses under steady state and transient operating conditions. It shall conform to property given in table-1 of IS: 7098 (Part-II). The insulation screen shall consist of non-metallic extruded semi-conducting compound with a non-magnetic metallic screening of copper. The copper screen for all the three cores together shall be capable of carrying the single line to ground fault current for the duration specified in the design criteria. Vendor shall furnish calculation in support of selection of the size of copper screen along with bid.

The conductor screen, XLPE insulation and insulation screen shall all be extruded in one operation by „Triple Extrusion‟ process to ensure perfect bonding between the layers. The core identification shall be coloured strip or by printed numerals.

The inner sheath shall be applied over the laid up cores by extrusion and shall conform to the requirements of type ST2 compound of IS: 5831. The extruded inner sheath shall be of uniform thickness. For multicore cables, the armouring shall be by galvanised steel wires as per method (b) of IS: 7098 (part-II). The outer sheath shall be applied by extrusion of over armouring and shall be of PVC compound conforming to the requirement of Type ST2 compound of IS: 5831. The thickness of outer sheath shall be as per IS: 7098 (Part-II). for armoured and unarmoured cables.The dimensions of the insulation, inner sheath and armour materials shall be governed by values given in IS : 7098 (Part-II).



06.03 PVC CABLES

All Power / Control cables for use on medium voltage systems shall be heavy duty type, 1100 V grade with 3 1/2, 4 core electrical purity aluminium /copper conductor (for power cables) / electrolytic grade high conductivity annealed copper conductor (for control cables), PVC insulated, PVC extruded inner sheathed, armoured and overall PVC sheathed suitable for 415 V neutral solidly earthed system and as detailed below.

The conductors shall be solid for conductor of nominal area upto and including 6 mm2

and stranded beyond 6mm2. Conductors of nominal area less than 25 mm2 shall be circular only. Conductors of nominal area 25 mm2 and above may be circular or shaped. Cables with reduced neutral conductor shall have sizes as per Table 1 of IS: 1554 (Part-I). Circular solid or stranded copper conductor shall be with a minimum size of 2.5sq.mm The core insulation shall be with PVC compound applied over the conductor by extrusion and shall conform to the requirements of type „C‟ compound as per IS: 5831. The thickness of insulation and the tolerance on thickness of insulation shall be as per Table-2 of IS: 1554 Part-I. Control cables having 6 cores and above shall be identified with prominent and indelible Arabic numerals on the outer surface of the insulation. Colours of the numerals shall be contrast with the colour of insulation with a spacing of maximum 50 mm between two consecutive numbers. Colour coding for cables upto 5 cores shall be as per Indian standards. The PVC insulation used shall be suitable for continuous conductor temperature of 85ºC.

The inner sheath shall be applied over the laid up cores by extrusion and shall be of PVC conforming to the requirements of Type-ST2 PVC compounds as per IS: 5831. The minimum thickness of inner sheath shall be as per IS: 1554 Part-I.

Armouring for multicore cables shall be single round galvanised steel wires where the calculated diameter below armouring does not exceed 13 mm and by galvanised steel strips where this dimension is greater than 13 mm. Requirement and methods of test for armour material and uniformity of galvanisation shall be as per IS : 3975 and IS : 10810 (Part-41). All Cables shall have round wire GI armour only.

The dimensions of armour shall be as per method (b) of IS: 1554 Part-I. Armouring for single core cable shall be with H4 grade hard drawn aluminium round wire of 2.5 mm diameter.

The outer sheath for the cables shall be applied by extrusion and shall be with Type – ST2 PVC compound as per IS : 5831.

The minimum thickness of outer sheath shall be as per IS: 1554 Part-I for both armoured and unarmoured cables.

It shall be possible to continuously operate the cable at a maximum conductor temperature of 850 C.

The insulation of phase conductors shall be colored red, yellow and blue and the neutral black.

1.1 kV grade control cables shall be of circular solid / stranded electrolytic grade high conductivity annealed copper conductor with a minimum size of 2.5sq.mm, PVC insulated, Round wire armored and PVC overall sheathed.



All cores of control cables shall be continuously identified by tracer numbers i.e. tracer numbers either embossed or printed continuously on each individual core.

06.04 FLAME RETARDANT LOW SMOKE (FRLS)

These shall be as per specification mentioned above but with protective system of inner and outer sheath specially designed with thermoplastic or thermosetting materials, superior resistance to ignition and flame propagation with smoke emission and toxicity or corrosive characteristics.

06.05 CABLES / WIRES FOR ILLUMINATION WORKS FOR FIXED WIRING :

i) Type I : Single core :1100 grade Cables With Copper conductor, PVC insulated

and Unsheathed. Minimum 1.5 Sq. MM Size. ii) Type II : Single core :1100 V grade cables with copper conductor, PVC insulated

and PVC sheathed. iii) Type III: Circular multicore: 1100 V grade cables with copper conductor, PVC insulated and PVC sheathed.

iv) Type IV: Same as Type I above but having aluminum conductor. Minimum

4 Sq. mm Size

v) Type V : Same as type II above but having aluminium conductor.

FLEXIBLE CORD :

i) Type I: Single core: 1100 V grade cables with copper conductor, PVC insulated and unsheathed. Minimum 1.5 Sq. Mm size

ii) Type II : Single core : 1100 V grade cables with copper conductor, PVC

insulated and PVC sheathed.

iii) Type III: Two core twisted: 1100 V grade cables with copper conductor, PVC insulated and unsheathed.

iv) Type IV: Circular, Multicore: 1100 V grade with copper conductor, PVC insulated and PVC sheathed.

CONDUCTOR

Conductor shall be composed of plain annealed high conductivity copper wires or aluminium wires. Wires up to 1.5.mm2 shall be either solid or stranded in case of copper conductor and solid in case of aluminium conductor. Wires above 1.5 Sq. mm shall have stranded conductors. Conductors having cross sectional area up to 25 mm2 shall be circular and above 25 mm2 may be circular or shaped. INSULATION



The insulation shall consist of an extruded layer of suitably compounded high quality PVC. The insulation shall be so applied that it fits closely on the conductor and it shall be easily removable without damage to the conductor.

CORE IDENTIFICATION

The individual cores of single core and multi-core cables shall be identified by different colour of PVC insulation as indicated below:

Cables for fixed wiring

Flexible cords

1. Core: Red, Black, Yellow, blue, white or gray

Red, Black, Yellow, blue, white or gray

2. Cores: Red & Black

Red & Black

3. Cores: Red, Yellow & Blue

Red, Black & Yellow / Green

4. Cores: Red, Yellow, Blue & Black

Red, Yellow, Blue & Yellow / Green

SHEATHING

i) Sheathing of black, white or grey shall be applied by extrusion over the insulation in case of single core cables and over the laid up cores in other cases.

ii) The colour of sheath shall be Black, white or grey.

06.06 Cable Accessories

The termination and straight through jointing kits for use on the systems shall be suitable for the type of cables. Heat shrinkable type or cold setting type of kits offered shall be mentioned in the offer clearly. The accessories shall be supplied in kit form. Each component of the kit shall carry the manufacture‟s mark of origin. The kit shall include all stress grading, insulation and sealing materials apart from conductor fittings and consumable items. An installation instruction sheet shall also be included in each kit. The contents of the accessories kit including all consumable shall be suitable for storage without deterioration at a temperature of 450 C, with shelf life extending to more than 5 years.

06.07 TERMINATION KITS

The termination kit shall be suitable for termination of the cables to an indoor switchgear or to a weatherproof cable box of an outdoor mounted transformer. For outdoor terminations, weather shields / sealing ends and any other accessories required shall also form part of the kit. The termination kits shall be one of the makes / types mentioned in the preferred make.

06.07.01 JOINTING KITS

The straight through jointing kits shall be suitable for installation on overhead trays, concrete lined trenches, and ducts and for underground burial with uncontrolled backfill



and possibility of flooding by water and chemicals. These shall have protection against any mechanical damage and suitably designed to be protected against rodent and termite attack. The inner sheath similar to that provided for cables shall be provided as part of straight joint. The jointing kits shall be one of the makes / types mentioned in preferred make.

06.08 TESTING AND INSPECTION

06.08.01 CABLES

The cables shall be tested and inspected at the manufacturer‟s works. All the materials employed in the manufacture of cable shall be subjected, both before and after manufacture, to examination, testing and approval by Owner. Manufacturer shall furnish all necessary information concerning the supply to Owner‟s inspectors. The inspector shall have free access to the manufacturer‟s works for the purpose of inspecting the process of manufacture in all its stages and he will have the power to reject any material which appears to him to be of unsuitable description or unsatisfactory quality.

After completion of manufacture of cables and prior to dispatch, the cables shall be subjected to type, routine, acceptance and special tests as detailed below. Owner reserves the right to witness all tests with sufficient advance notice from Vendor. The test reports for all cables shall be got approved from the Engineer before dispatch of the cables.

All routine tests, acceptance tests, type tests and additional tests for improved performance shall be carried out on cables as listed in IS: 1554 Part- I and IS: 7098 Part- II.

The inner and outer sheath of XLPE cables shall be subjected to all the tests

applicable for PVC cables. The test requirements for insulation and sheath of PVC cables shall be as per latest revision of IS: 5831. Acceptance tests as per IS:1554 (part-I) and IS:7098 (part-II) and the following special testes to be performed on the cables as per sampling plan. These tests are required to be witnessed by owner before dispatch of cables. Accelerated water absorption test for insulation as per NEMA-WC-5 (for PVC insulated cables) and as per NEMA-WC-7 (for XLPE insulated cables). Sampling for this test to be done randomly once for each order, provided the type of insulation remains same.

A) Dielectric Retention test

The dielectric strength of cable insulation tested in accordance with NEMA-WC-5 at 75

10 C shall not be less than 50 % of the original dielectric strength (for PVC insulated cables). Test certificates with respect to this test (not older than one year) from recognized testing laboratory to be furnished for review by Owner before dispatch clearance of cables. In case test certificates are not available, test to be conducted by vendor at his own cost at any recognised testing laboratory or in house testing laboratory, before dispatch clearance of cables. Sampling for this test is to be done randomly and once for each size per order.

B) Flammability test.

The test shall be carried out on finished cable as per IS:10810 and same shall meet following :

The cable meets the requirement if there are no visible damages on the test specimen within 300 mm from it‟s upper end. Sampling for these tests to be done randomly once



for each order, provided the type of outer sheath remains same. Test for rodent and termite repulsion property. The Vendors shall furnish the test details to analyse the property by chemical method. Sampling to be done for every offered lot/size as per sampling plan. All Routine tests & acceptance tests as per relevant IS shall be carried out on every cable size in presence of TPI..

The following minimum tests shall be carried out on all types of cables:

C) Acceptance test

Annealing test (for copper)

Tensile test (for aluminium)

Wrapping test (for aluminium)

Resistance test

Test for thickness of insulation and sheath

Insulation resistance test

High voltage test

D) Routine test

Conductor resistance test

Partial discharge test for HT cables.

High voltage test

Insulation resistance test

06.08.02 Cable Accessories

Type tests shall be carried out to prove the general qualities and design of a given type of termination / jointing system / kits as per IS: 13573. The type test certificates shall be submitted along-with the offer. In case type test certificates are older than 5 years, vendor shall carry out the type at his own cost.

06.09 PACKING AND MARKING

Cables shall be dispatched in non-returnable wooden drums of suitable barrel diameter, securely battened, with the take-off end fully protected against mechanical damage. The wood used for construction of the drum shall be properly seasoned, sound and free from defects. Wood preservatives shall be applied to the entire drum. Ferrous parts used shall be treated with suitable rust preventive finish or coating to avoid rusting during transit or storage. Cable drums shall be suitable for storage in the open yard at site where it will be subjected to rains and other climatic variations. The wooden drums shall not deteriorate and collapse during storage for at least 2 years.

On the flange of the drum, necessary information such as project title, manufacturer‟s name, type, size, voltage grade of cable, length of cable in metres, drum No., cable code, BIS certification mark, gross weight etc. shall be printed. An arrow shall be painted on the drum with suitable instructions to show the direction of rotation of the drum.



HT, LT Power and control cables shall be procured in suitable drum lengths considering actual route length of cables, to avoid straight through joints. Maximum tolerance of -5% shall also be considered while specifying drum lengths. Cables shall be supplied in drum lengths as follows, if not specified

Power cables upto and including 6 sq. mm -1000 m.

Power cables from 10 sq. mm upto and - 500m.

including 300 sq. mm

Control cables -1000 m.

H.V Power Cables:

Up to 11 kV (UE) grade, 3 X 185 mm2 - 500 m.

06.10 DESIGN CRITERIA



Sl. No.

PARAMETER CABLE TYPE ®

HT LT CONTROL

1 System voltage 11kV (UE), 3ph., isolated neutral

415V, 3ph., solidly earthed neutral

2 Highest system voltage 12KV 1.1kV

3 System neutral Unearthed Solidly earthed

4

Fault level 16 Ka 35 kA

Symmetrical RMS 40 kA 105 Peak 100 KA kA -

5 Installation Indoor /outdoor (buried directly in ground/RCC trench) laid on cable trays in open air cable channels

6

Ambient temperature As per site conditions

Maximum daily average Design ambient

7 Ground temperature 40 degrees C

8 Insulation XLPE

9 Conductor material Aluminium/Copper Copper 10 Armour Steel Wire armour. Round wire

armour. 11 Sheath material Extruded inner and outer sheath, type ST2

12 Voltage variation + or -10%

13 Frequency variation + or – 3%

14 Cable size As specified in BOQ and drgs.

15 Voltage rating of the cable 11kV (UE) 1.1 kV 1.1 kV 16 Number of cores 3 core 4 / 3 ½ core Multi-

core

06.11 SELECTION Size and type of cables for specific applications shall be selected giving due

consideration for the following : - The size selection of HV cable shall be done on the basis of system fault level in

addition to current rating of the cable and voltage drop on the cable. - Thermal heating effect / permissible current carrying capacity - Allowable voltage drop as per Technical specification - Short time current / overload requirement - Protection system grading and short circuit current carrying capacity - Ambient conditions - Cable grouping factors - Cross-sectional area of the cables used in LT power circuits shall be - Minimum 10 sq mm per core with aluminium conductor or 6 sq mm per core with

copper conductor - Maximum core size shall be 185 sq mm for motors and 240/300 sq mm for

incomers



- For Lighting cabling shall be carried out with PVC insulated, PVC sheathed 1.1 kV grade armoured cables with copper conductors of minimum size 2.5 sq mm.per core.

- LT cables where laid in ducts / tunnels / basements or taken through pipes or

conduits may be unarmoured type, if indicated in Technical specification.

- Current carrying capacity of the power cables shall be calculated considering de-rating factor of 0.5.

- All control cables shall have stranded copper conductors.

- For control circuits, PVC insulated and PVC sheathed multi-core cables with

copper conductors having a minimum cross-sectional area of 2.5 sq mm per core shall be used.

- The number of cores may be standardized as 3, 5, 7.10, 14, 19, 24 .Each core of

control cable with 7 core and above shall be numbered at every 1 meter intervals. - In multi-core control cables, the following minimum reserve cores shall be kept at

the engineering stage : * Up to 7 cores - One reserve core * 10 cores - Two reserve cores * 14,19 & 24 cores - Three reserve cores - Sequential length marking shall be provided in outer sheath of all power and control

cables. - Standard drum length for all types of power and control cable shall be offered. - ISI marking at every meter of cable length shall be provided.

- Cores of multi-core control cables shall be serially numbered.

- The wires shall be suitable for voltage up to and including 1100 V with copper / aluminium conductor (as specified), PVC insulated, PVC sheathed or unsheathed as specified, unarmoured.

07.00 L.T Equipment 07.01 Design Criteria :

Power supply system

1 Voltage 415V +/- 10% 3 phase and neutral

Ambient conditions

1 Maximum ambient

temperature 45 degrees C

2 Humidity 100% not occurring with maximum

temperature

3 Height Less than 1000 M

4 Environment Completely laden with dust & gases



2 Frequency 50 Hz +/- 5%

3 Combined variation +/- 10% of voltage & frequency

4 System Neutral Solidly earthed

5 Insulation level 2.5 kV for 1 minute

6 System S.C. Level 35 kA for 1 second

7 Control Voltage 110V, 1 phase, 50 Hz AC through control transformers (minimum 2.5 kVA)

08.00 FEEDER PILLAR AND LDB / SDB / DB

08.01 LDB/SDB/DB

Suitable for 415 / 230V with Aluminum / copper TPN & E busbar. Totally enclosed, non-drawout, front operable

Enclosure IP: 65.

Incomer chamber housing MCCB / SFU / MCB / ELCB / Contactors/ Busbars, indicating lamps.

Outgoing chambers housing SP/DP/TP/TPN MCB‟s /TIMER/SFU

Shrouding of all live parts.

Suitable mounting bracket / pedestal / base frame.

Continuous earth bus with earthing studs, Phase barriers.

Aluminum / copper busbars as per approved SLD.

Neoprene gasket for all door and frame shutters.

Link between neutral and earth.

Hinged door with pad locking arrangement.

Brass cable-glands for all incoming and outgoing feeders.

Double Door construction.

SLD to be pasted inside the door.

Board designation plate to be fixed.

Danger board to be provided.

Inscription plate with inscriptions for all feeders.

The finish paints for the boards shall be indicated during approval of GA drawing. 08.02 FEEDER PILLAR

Shall be suitable for 415 / 240V with aluminium TPN & E busbars Suitable for plinth mounting.

The frame work and door shutters shall be CRCA sheet steel of 2.0 mm and 1.6 mm thick respectively with double door construction.

The enclosure shall have a protection class of IP: 65.

Suitable canopy for rain water protection.

Cable entry and exit from top or bottom with removable undrilled gland plate of 3 mm thick shall be provided.

Continuous earth bus with extended earthing stand.

Incomer shall have separate chamber for housing TPN SFU / MCCB and provision for terminating multi-core cables.

Outgoings for Fittings- SFU / MCB / ELCB / Timer / Contactor



Incomer & outgoing chambers shall have shrouded separator.

Ammeter with CT and selector switch.

Voltmeter with selector switch.

Indicating lamps

All live parts shall be shrouded.

Suitable bracket, for mounting on wall/Column, Pedestal for Feeder Pillar.

Link between neutral and earth bus

Neoprene gaskets for all doors and shutters.

Hinged door with padlocking facility

Incomer switch handle interlocking with incomer chamber door.

Manual inter-lock defect.

Busbar height not exceeding 300 mm

Double compression type brass cable gland.

Door limit switch with Lamp.

Board designation plate

Danger board.

Inscription plate for all feeders.

SLD to be pasted inside the door.

The finish paint shade shall as per approved GA drawing.

08.03 MOULDED CASE CIRCUIT BREAKERS 1. Type : Motor/feeder duty as required 2. Reference standard : IS:13947 (Pt-3), 1993, IS:2516 3. Rated current : As per approved SLD 4. Feature required : Adjustable inverse time (O/L) and/or

instantaneous magnetic releases as per approved SLD

Operating handle : Yes Door interlock : Yes Padlocking in ON/OFF : Yes position



5. Withstand capability : Symmetrical breaking capacity not less than the system short circuit level specified.

6. Auxiliary contacts : 1 NO + 1 NC 7. Performance category : P2 08.04 HRC FUSES 1. Type : Link type 2. Rated Voltage : 500 V AC 3. Rated current : As specified in SLD 4. Operation indicator : Required 08.05 AC CONTACTORS 1. Service : Indoor within steel cubicle for maximum system

voltage, starting of motors and miscellaneous loads.

2. No. Poles : 3 3. Rated Voltage : 415V +/- 10% voltage 4. Rated frequency : 50 Hz +/- 5% 5. Control circuit : 110 V +/- 10% l phase 50 Hz +/-5% derived from 415 / 110 V control transformer 6. Utilisation category : AC2/3 for unidirectional motors AC4 for bi-directional motors 7. Aux. contact requirement: Minimum 2 NO. + 2 NC contacts 8. Limits of operation a. Closing (pick-up) : 85% to 110% b. Dropout : Shall not be higher than 75% and lower than 10% of rated control supply voltage 9. Rating : 16 A or 125% of rated motor current whichever is Higher 08.06 CURRENT TRANSFORMERS 1. Service : Indoor 2. System : 415V, 3 phase, 4 wire, 50 Hz, Solidly earthed

neutral 3. Type : Resin cast encapsulated, window type, bar

primary



4. Rated voltage : 415 V +/- 10% 5. Quantity required : As per requirements of individual feeders or as

mentioned in the specification 6. Ratio and burden : CT secondary rating shall be 5 Amperes,

Burden 15VA 7. Accuracy : 5P10 or better for protection and Class - 1 for

Metering 8. Power frequency with : 2.5 kV (RMS) for one minute stand voltage 9. Mounting : in stationary portion of switchgear cubicle 08.07 CONTROL TRANSFORMER 1. Service : Indoor 2. Primary Voltage : 415V, 3 phase, 4 wire, 50 Hz solidly

earthed neutral 3. Type : Cast resin, dry type 4. Rated secondary voltage : 110 V 1 Phase 50 Hz 5. Rated burden : As per requirement. Minimum 5 kVA 6. Tappings : ± 10% on Primary side in steps of 2.5 % 7. Power frequency with : Primary 2.5 kV for 1 Minute stand voltage

Secondary 1.0 kV for 1 Minute 8. Mounting : Bottom of panel with Air Blow Louvres 9. Quantity : As per approved SLD 08.08 ELCBs The ELCB shall be current operated type 4 pole with sensitivity of 30 to 300 mA

sensitivity quick break trip free rating and provision to connect cable as per approved single line diagram.

08.09. Name Plates Name plates showing switchgear / feeder designation shall be provided of anodised

aluminium of 3 mm thick. Individual panel nos. / designation plate shall be fixed both at back and front of the panel on fixed portion. All components shall have distinct labels.

08.10 TESTS



Type test certificates carried out on the similar equipment as per applicable codes & standards shall be furnished during inspection. All routine tests as per Standards shall be carried out in the presence of purchaser's representative during inspection.

08.11 Earthing

Two earth terminals shall be provided on each cubicle, at back. An earth bar of specified cross section shall be fixed to the terminals. The earth bar shall be electrically continuous and shall run the full extent of each board. Terminals shall be provided for external earth connections. The minimum cross section of aluminium earth bar shall be as per approved SLD specified. All relay and meter bodies shall be earthed by one separate green earth conductor.

08.12 Special tools

A set of special tools required for the normal operation and maintenance shall be supplied with each switch board. The Bidder shall include along with each switch board one height adjustable circuit breaker trolley for handling with drawable circuit breaker carriage.

09.00 ILLUMINATION SYSTEM 09.01 DESIGN PHILOSOPHY

The Illumination system shall cater to the following.

Normal cum Emergency AC Lighting

Normal cum Emergency Lighting shall be provided by AC Lighting fixtures distributed through the plant.

Normal power shall be from SEB.

In case of failure of normal supply the D.G set shall be started automatically (AMF operation) and take over lighting load of the plant until the SEB power Supply gets restored

Road lighting and area lighting is envisaged using 400W HPSV flood light fittings mounted on swaged and welded steel tubular poles or High mast.

HPSV street light fittings are envisaged on the entry of all the civil buildings

HPSV post top lanterns are envisaged on all gate pillars.

All the civil buildings shall be provided with fluorescent tube light fittings using colour designation – 86 fluorescent lamp (Similar to Philips truelite type ) controlled through decorative control switches. Adequate Number of Ceiling fans, 5A & 5/15A socket outlets with control switches shall be provided. All toilet blocks and Sub- station building shall be provided with exhaust fans.

Hazardous area like product P/H, TLF P/H, Gantry shed, calibration shed, etc., shall be provided with flame proof HPMV well glass/ Bulk head fitting with HPMV/CFLL lamps.

Surface/concealed wiring using PVC casing N capping / MS conduit / PVC conduit with multi strand PVC insulated copper wires shall be carried out in all the buildings in non-hazardous area. Surface wiring using multi stand PVC insulated armoured copper



cable shall be provided in buildings of hazardous area with suitable FLP junction boxes, cable glands etc.

The Bidder / contractor shall consider Guide lines/data as per Table „B‟ for design of the lighting system. OISD has come up with latest standard, the same shall be cross checked with the table below.

TABLE B

SL. NO.

AREA ILLUMINATION LEVEL (LUX)

Maintenance Factor

TYPE OF LIGHT FITTINGS

1 Tank farm & other area

lighting 60 0.6

400W flood light fittings (Non FLP) with HPSV lamp

2 Road and area lighting 20 0.6

250W SON/400W flood light fittings (Non FLP) with

HPSV lamp

3 Pipe Manifolds 60 0.6 FLP, 3x26W, CFL well glass fittings

4 Electrical rooms / offices / LT substations, Amenities Block,

Security Room 250-300 0.8

Decorative / rail / Trough type

fluorescent tube light fittings

5 Control room, instrumentation

room 400 0.8

Surface/recess mounting type


6 Battery room 100 0.7 Vapour proof


7 Lubricant Go-down 100 0.7 FLP, 3x26W, CFL well glass fittings

8 TLF shed& Gantry calibration

shed, meter room etc 300 0.65

FLP, 3x26W, CFL/250W HPMV well glass fittings

9 Periphery of buildings 20 0.5 Non FLP, 70W/150

W, HPSV Street Light Fittings

10 Product pump houses /Water pump house/ General Stores/

Driver‟s Rest Room 150 0.7

FLP, 3x26W, CFL well glass fittings / Flourescent tube

light, fittings

11 Transformer yard 60 0.6

WP, 3x26W, CFL well glass fittings

well glass fittings/street lighting

12

Watch Tower/Water tank/ watchman Kiosk/Gate Complex and any other open area within

the battery Limits

11W CFL B/H Fittings & 400W Flood Light



NOTE : The quantities indicated in the SOR are tentative and may increase/ decrease to meet the lux requirement. The successful bidder shall design the Lighting and earthing system.

09.02 LIGHT FIXTURES, LAMPS AND ACCESSORIES 09.02.01 GENERAL

All the luminaires shall be designed, manufactured and tested in accordance with relevant IS specifications so far as they are applicable.

All the luminaires shall be commercial / industrial type as per specific requirement. Specification for the various types of incandescent, mercury vapour, sodium vapour and fluorescent fittings mentioned in the schedule of quantities shall be followed. All the lighting fixtures shall be complete with all parts, including earthing arrangement and accessories for efficient performance whether specifically asked in the specification or in the schedule of items or not.

Individual light fittings shall be provided with suitable arrangements for GI threaded conduit entry of 19 mm dia unless otherwise specified. Terminals of all fittings shall be suitable for taking 2.5 sq. mm flexible, copper conductor PVC insulated, PVC sheathed cable.

Fittings shall be supplied with all inter – connections made and fully wired upto the terminal block and shall be suitable for mounting on wall / column / ceiling / suspension (from the ceiling including suitable bracket).

All types of light fittings shall be supplied with lamps.

All live parts shall be provided with suitable sleeves to prevent accidental contacts. The earthing terminal in the fitting shall effectively earth the body of the entire luminaires.

The clearance between the live parts and the enclosures earthing and other safety factors shall be governed by the latest revisions of the relevant IS specification and IE rules.

The fixing arrangement of various components and lamps shall be in such a way that the maintenance and replacement jobs can be easily carried out.

The luminaires shall be suitably designed to provide economically the required level of illumination on the working plane when mounted at normal standard height in accordance with the type of fixtures.

The luminaires shall be suitable for operating at normal supply voltage of 240 V, single phase, 50 Hz with voltage variation of +/- 6% or at voltages as specified.

The lamp holders of the fittings shall be suitable to take the lamp supplied.

All types of Flourescent lamp fittings shall be supplied with necessary controlgear housing polyester filled copper wound ballast/ electronic ballast. P.F improvement capacitor spring loaded rotary lamp holders starter holders metallic starters all pre wired to suitable terminals



All types of fluorescent and well glass fittings shall be suitable for mounting on wall / column or suspension from ceiling/false ceiling as required.

The light fittings/fans shall include the mounting accessories like chain, down rods for fittings mounted in false ceilings anchor bolt and all erection accessories required for complete installation.

Only energy efficient electronic ballast shall be used. In case the same is not manufactured for a particular type of lighting fixture then copper ballast shall be used as the next option.

Wherever inserts are available in the roof slab/column/wall, the same shall be used for supporting the mounting accessories like downrod/brackets/chains etc., and in other places where there are no inserts. Anchor bolts shall be used for supporting the mounting brackets from the ceiling and grouting on wall / column shall be provided for mounting the fitting on wall / column in consultation with the site engineer.

For exact location of inserts, relevant civil drawings shall be referred.

GI/MS/PVC conduits shall be complete with all accessories as required.

Due to the highly corrosive atmosphere the fittings shall be provided with two coats anti corrosive epoxy painting over two coats of primer.

Bulk head Luminaires suitable for GLS or Compact Flourescent fittings.

Anti-Corrosive Type Fluorescent Light Fitting

Industrial Fluorescent Light Luminaire With Stove/Vitreous Enamelled Reflectors

Compact Fluorescent Lamp & Fittings

Flame proof well glass & bulkhead luminaires suitable for HPMV/CFL fitting. 09.02.02 STREET LIGHT LUMINAIRE (SUITABLE FOR HPSV LAMPS)

The integral type street light fittings shall be of single piece construction from die cast aluminium. The control gear compartment shall have the necessary ballast, ignitor, p.f. improvement capacitor and connector block apart from the brackets for fixing the fitting to the mast / arm.

09.02.03 STEEL TUBULAR POLE (FOR MOUNTING STREET LIGHT / FLOOD LIGHT)

Shall be as per drawing attached with the tender 09.02.04 FLOOD LIGHT LUMINAIRE (SUITABLE FOR HPSV LAMPS)

The flood light fitting shall be of non – integral type, complete with suitable weather proof control gear box made of cast aluminium. The fitting shall consist of a cost aluminium lamp holder housing a reflector made of spun aluminium electro-chemically brightened and anodised. Flat toughened front glass suitable to withstand the high temperature and humid conditions shall be fixed to the housing using neoprene gasket. Focusing knob to help in adjusting the lamp centre shall be provided. Mild steel cradle shall be mounted on the control gear. The control gear shall consist of heavy duty polyester filled copper choke suitable for lamp wattage specified, p.f improvement condensors, connector and fitting is duly wired with provision of cable



entry provided. The provision for relamping is to be made in such a way that aiming angles are not disturbed.

The chokes shall be manufactured from high quality silicon laminations with tappings at 200/220/240V. This shall conform to IS: 6616. Holders shall be made out of porcelain and shall have brass contacts. These shall be rated for 240V. The tip of the holder shall be spring loaded. Capacitors shall be of 250V rating. This shall conform to IS 1569. Internal wiring shall be done with fibre glass covered wire of suitable cross section to withstand high temperature generated in the control gear / lamp holder. The main supply shall be connected to the terminal block made out of porcelain / bakelite of suitable quality. The terminal block housing shall have flexible conduit for taking the main supply leads.

The control gear and lamp holder housing shall be provided with a sufficient number of vertical fins to dissipate heat produced. A protractor plate with degrees marked on it shall be provided to enable the fitting to be tilted to any required angle. Rotation of the fitting shall be limited to 360 degree horizontal and 180 degree vertical and locking arrangement shall be provided for both vertical and horizontal position. All hardware shall be made of mild steel and passivated.

The fitting shall be complete and suitable for taking HPSV lamp, provided with gaskets to make the unit weather proof. All the cast aluminium parts shall be finished in hammer stone stove epoxy painting. 3 x 2.5 sq. mm PVC cable, copper conductor shall connect the terminals of the luminaire with sub circuit at 240V via the control gear unit. 1 No. earthing terminal shall be provided.

Both the luminaire and the control gear box shall conform to IP 54 and suitable for outdoor application.

The control gear box shall have the required electronic ignitor for starting of the lamp.

09.02.05 POST TOP LANTERNS:

Post top lanterns shall be suitable for taking GLS/blended light (MLL) / HPMV / HPSV lamp as specified in the schedule of items. The fitting shall include all the necessary accessories for efficient working. The fitting suitable for HPMV lamp should include copper wire wound ballast, power factor improvement capacitor and fittings for HPSV lamp should include electronic ignitor in addition to ballast and capacitor. In the integral type of fitting, the control gears shall preferably housed in a cast aluminium spigot which apart from housing the control gears shall be suitable for mounting to the GI pipe post.

The lamp housing shall be different types as specifically indicated in the schedule of items. It shall be either double conical or spiral opal white acrylic domes or an opal white crylic bowl with top spun aluminium canopy or of purely decorative designs. If the type of the lamp housing is not clearly indicated in the schedule of items, the contractor in his offer shall indicate these details he has considered in the offer. All the joints shall be gasketed using neoprene gaskets and the fitting shall be suitable for outdoor use. The protection for lamp compartment shall not be less than IP : 43 and that for the control gear compartment not less than IP : 33. All the hardwares shall be corrosion resistant preferably be of stainless steel / brass. Post top lanterns are envisaged on all gate Pillars

09.02.06 SOCKET OUTLETS FLUSH / SURFACE MOUNTING SOCKET OUTLETS

(DECORATIVE TYPE)



5A / 15A, 5A, 240V, single phase, 3 pin (two pole and one earth) socket outlet shall be flush / surface mounting type along with decorative control type switch. If indicated, the socket shall be 5A / 15A combined (universal type) having 6 pin with suitable piano type switch. Adequate No. of Socket outlets shall be provided in areas like control rooms Sub-station, office, amenities block and similar other buildings.

09.02.07 JUNCTION AND OUTLET BOXES

Junction and outlet boxes fabricated with sheet steel shall having a minimum thickness of 1.6 mm unless otherwise specified The JB shall have earthing terminals & terminal block, number of knockouts for cable entry etc., as required. The exact size of knockout and cable gland shall be as per actual requirement.

09.02.08 CONTROL SWITCHES

DECORATIVE TYPE

Single pole decorative type, 5A, or 15A switches shall be used for light/fans/socket outlets points in office premises / non plant buildings and shall be of approved type, make and colour. All branch switches shall be placed in line conductor of the circuit and no single switch or fuse shall be inserted in the neutral conductor of the circuit.

09.02.09 SWITCH BOARDS (for decorative switches and sockets)

The switch board shall be made of 1.6 mm thick sheet steel & painted including supports for switches, sockets, fan regulator etc., but excluding front cover in case of decorative switches & sockets which will be of FRP sheet of approved quality, design and colour. Clear depth of the box shall not be less than 60 mm, but adequate for easy mounting of fan regulators. All fittings shall be in flush pattern in case of concealed wiring. The FRP cover sheet thickness shall not be less than 3 mm.

09.02.10 CEILING FAN

Ceiling fans shall be 3 Blades type.

Ceiling fans shall be hung at 150mm above the light fitting level or as per as per layout DRGS. The length of the down rod supplied shall be suitable for this purpose.

1 No. 1200mm Sweep Ceiling fan for every 15 Square meter area (max) shall be provided wherever required.

09.02.11 EXHAUST FAN

Exhaust fan shall have totally enclosed highly efficient heavy duty motor mounted on ball bearing, precisely dynamically balanced blades/impeller to ensure smooth & trouble free operation, rigid frame with rubber frames for silent operation finished with stove enamelled/epoxy powder coated for better chemical, mechanical & corrosion resistant. The exhaust fan shall be supplied with wire guard/bird-mesh screen, and earthing terminal.

The exhaust fan shall be provided with earthing terminal.

09.02.12 Flame Proof Push Button Stations for motors, Light Fittings and Accessories

like Boards switches Junction Boxes, cable glands etc.,



FLP Push Button stations in Pump houses for motors, different types of light fittings such as well glass, Bulkheads and accessories Boards cable glands etc., shall be suitable for group II-A and II-B (where Petroleum, oil, lubricants are stored and Handled) All these equipment shall have test certificates issued by PESO/CCOE Nagpur.

09.02.13 ENERGY SAVING DEVICE FOR ILLUMINATION SYSTEM: NOT APPLICABLE

Energy Saving Device shall be connected at the incoming side of the Main Lighting Board. The Cable from PCC (for MLDB) shall be first terminated in Energy Saving Device panel and the out going from this shall be connected to 400A MCCB incomer module of MLDB and the out going feeders of MLDB will feed power to lighting fittings, fans (Ceiling, Pedestal, Exhaust), hand tools through switch socket units and Spilt type room Air Conditioners. The system offered shall be suitable for energy saving in this system with very low internal losses(ie. High efficiency- 99% or better) and maintenance free type and safeguard the equipment from power supply system and voltage fluctuations without affecting the performance of the illumination system mentioned above and without introducing harmonics and surges. The following are brief specifications of the equipment.

Shall have three numbers low loss transformers mounted in a sheet steel enclosure (2mm thick for load bearing parts and 1.6mm thick for doors and covers. Sheet steel duly treated in seven tank process and powder coated / painted with colour RAL 7032), free standing with base channel of 75mm and with separate cable alley for bottom entry of incoming / outgoing cables each 2 nos of 3.5X240 mm2, AYRY. The panel shall also have the other items / components mentioned in following paragraphs.

Incoming power supply 3phase, 415 + 10% V, 50 + 5% Hz, 4 wire AC with fault level of 35 KA for 1 sec. The control voltage shall be 110V,AC.

Incoming isolator with fuses and neutral links with RYB on / off LED lamps (22.5mm), CTs with ammeter and ammeter selector switch, voltmeter with selector switch and fuses etc.

Local / selector switch, control MCB, Contactors etc. as required for automatic tap changer and automatic bypass of the unit in case of problem in unit / abnormal under voltage/fuse failure etc.

If the unit offered is forced cooling type then the starter for the fans shall also be included in the panel. The rating of the unit with fan failed condition shall also be indicated in the offer.

Contractor shall indicate the assured / guarantee amount of saving in the system. The system will be checked for the same at manufacturer‟s works. The vendor‟s reference list where such units are supplied and amount of energy being saved shall be indicated with user‟s certificates,

The vendor shall submit all the relevant drawing for our approval before manufacture.

10.00 HAZARDOUS AREA



GENERAL

All the equipment‟s installed and accessories used shall conform to the requirements stipulated under relevant Indian Standards and STEC regulations for the type / category of installation. All the equipments and accessories installed in these areas shall be certified by CMRI, Dhanbad for using in that particular type of hazardous atmosphere like flammable gas / vapour or hazardous dust. All the equipments installed shall not attain more than the maximum permissible surface temperature specified for that area elsewhere in the specification, if not the maximum permissible temperature may be assumed as 100 degree C. It shall be ensured that overheating / sparking whether in normal use or under fault condition is confined within the approved housing of wiring system and electrical item concurred. If any equipment is likely to produce more than the prescribed maximum permissible surface temperature due to abnormal conditions of operation or during fault conditions, all such fittings shall be fitted with a thermal device to disconnect the appropriate circuit before the maximum safe temperature is exceeded. This bimetal thermally operated cutout device shall preferably be included in the enclosure containing choke and other control gears liable to be over heated. THIS THERMAL DEVICE SHALL NOT BE AUTOMATIC SELF-RESETTING TYPE. If control gears are not integral with the fitting the enclosure for the control gears also shall be suitable for use in that particular type of hazardous atmosphere and certified by CMRS, Dhandbad. For all the equipments where cast iron body is specified, cast aluminium alloy (LM-06) is also acceptable. All the equipments if constructed out of aluminium alloy, its external surfaces shall be smooth finished to be free from frictional sparking hazard. All the equipments shall have markings, warning inscriptions and interlocks, specified as per relevant I.S, inscribed either by raised lettering or cast integrally with or by a plate permanently attached to the body of the fitting. Copy of CMRS, Dhandbad, and certificate for each type of fitting should be submitted.

10.01 LIGHT FITTINGS

FLAME PROOF BULK HEAD FITTING The fitting shall have a cast iron/aluminium enclosure with integral control chamber housing the terminal box. The toughened impact resistant clear glass cover provided in the front shall be cemented to retaining ring. The retaining ring shall be suitable for fixing to the main body with the help of screws, which can be opened, only with the help of special tools. The ES porcelain lamp holder shall be suitable for the type of lamp specified. The fittings shall have suitable cable entry provision as required. Suitable plugs to close the non-used entries shall also be provided along with the fitting. A suitable chrome plated integral reflector shall be supplied along with the fitting.

In case the above fitting suitable for HPMV lamps are specified suitable flame proof control gear is to be supplied along with the fitting. Earthing studs one inside the terminal box and one outside shall be provided.

FLAME PROOF TUBE LIGHT FITTING

The fitting shall be integral type enclosing all the control gears like polyester filled copper wire round ballast, p.f. improvement capacitor, starter, starter holder and lamp holder in cast iron or cast aluminium alloy enclosure along with suitable terminals for incoming cable. The fluorescent tubular lamp shall be enclosed in a special toughened glass tube cemented at each end to an



aluminium alloy ferrule. The ferrule shall be attached to the control gear chamber on one end and other end to a cast iron or cast aluminium alloy end cover by special bolts. The lead wire between the two lamp holders shall be enclosed in brass tubes.

Suitable suspension arrangement for mounting the fitting on down rods or fixing to wall / ceiling shall be provided. The fitting shall be supplied with suitable wire guard. Two earthing studs one inside the control gear chamber and one outside shall be provided. Suitable cable entry provision also shall be provided.

FLAME PROOF WELL GLASS FITTING

The fitting shall be integral type enclosing all the control gears like polyester filled copper wires round ballast, p.f. improvement capacitor terminal box and lamp holder in a cast iron or cast aluminium enclosure with suitable cable entry provision. The fitting shall be provided with heat resistant and toughened clear well glass bowl with painted MS wire guard cemented to the retaining ring fixed to the main canopy. The ES porcelain lamp holder shall be suitable for the type of lamp specified.

A specially designed neoprene gasket protects the inside of the luminaire from harm full accumulation of any explosive dust and provides reliable weather proof. Earthing studs one inside and two outside shall be provided. Eyebolt is provided for suspending the fitting on down rods.

FLAME PROOF, DUST TIGHT WELL GLASS FITTING

The fitting shall have cast iron / cast aluminium LM6 enclosure enclosing all control gears such as copper wound ballast, lamp holder and terminal box. The fitting is provided with mild steel vitreous enameled / aluminium anodised reflector and toughened heat resistant well glass with painted MS wire guard welded to the retaining ring fixed the main canopy. A specially designed neoprene gasket protects the inside of the luminaire from harmful accumulation of any explosive dust and provides reliable weatherproof. Suitable cable entry shall be provided. The ES lamp holder shall be suitable for the lamp specified. The fitting shall be provided with two number external and one number internal earth terminals. Suitable integral eye hooks shall be provided for suspending the fitting an a down rod. The flitting shall conform to IP:65 protection or better. INTRINSICALLY SAFE PORTABLE HAND LAMP

The fitting shall be made of cast iron / cast aluminium LM6. The fitting shall be provided with toughened heat resistant glass and white epoxy coated MS wire guard. The fitting shall be provided with integral cable terminal box with one No. 3/4th ET entry and extended and made sturdy enough to be used as a convenient carrying handle. The fitting shall be provided with 2 Nos. external and 1 No. internal earth terminals. The fitting is provided with BS/ES porcelains lamp holder suitable for GLS lamp. The fitting shall be of dark gray / light gray shade epoxy powder coated finish. The fitting shall conform to IP 55 protection.

10.02 LAMPS

HIGH PRESSURE MERCURY VAPOUR LAMP



These lamps shall be suitable for universal burning positions and shall have E-40 with ES/GES threaded cap. These lamps shall be of ovoid shaped outer glass bulb and the inner surface is coated with phosphor.

SWITCHES SOCKETS AND OTHER ACCESSORIES

The enclosures shall be of cast iron construction having an integral terminal chamber. The front cover shall be secured to the body either by a threaded joint or by special type screws. The box shall have minimum two earthing provision outside and preferably one more inside. The switches and sockets shall be supplied with suitable double compression FLP type cable gland and cable entry / exit provisions shall be as per specific requirements. The enclosure shall have suitable provision for mounting on wall / column. The contact of the switches shall be suitable for heavy duty and shall be able to make and break the specified rated current effectively. The enclosure shall be suitable to contain the spark / arc created during the operation of the switch effectively from the outside atmosphere. The entire equipment shall conform to the relevant standards and certified by the appropriate authorities for use in hazardous areas having flamable gases or vapour and explosive dust. All the accessories such as Pull/anchor/ceiling/junction/outlet boxes specified for use in hazardous areas should conform to the relevant standards and certified by CMRS, Dhanbad. The body of all the above boxes shall be made of cast iron or cast aluminium alloy and shall have a removable cover plate. The cover plate shall have either a threaded joint or a screwed joint with the body. The number of cable entries shall be as per the requirement. FLAME PROOF EXHAUST FAN Exhaust fans shall have flame proof, highly efficient heavy duty motor mounted on ball bearing, precisely dynamically balanced blades / impeller to ensure smooth to trouble free operation, rigid frame with rubber pads for mounting to reduce vibrations for silent operation, finished with stove enameled epoxy powder coated for better chemical, mechanical and corrosion resistant. The exhaust fan shall be supplied with wire guard / bird mesh screen as required. FLAME PROOF MCB DISTRIBUTION BOARDS All equipments shall be designed suitable for operation in hazardous areas having flammable gases or vapour and explosive dust. The distribution board shall be wall / floor mounted type made of cast iron / cast aluminium LM6 with anti corrosive and light grey epoxy coated finish. The incoming cable terminals, outgoing cable terminals and the switch are all housed in separate chambers. The operating handle of the incomer shall be suitably inter locked mechanically with the door of the incomer. The boards are provided with neoprene gasket. Suitable cable entries shall be provided for incomer and outgoing. The boards are provided with 2 Nos. external and 1 no internal earth terminals. The entire equipment shall conform to the relevant standards and certified by the appropriate authorities for use in hazardous areas.

10.03 WIRING

GENERAL

For general requirements for wiring refer to the details stipulated under specifications for wiring for Ordinary (non-hazardous) area elsewhere in this specification.



Additional requirement for carrying out wiring in the hazardous areas are as specified below :-

A) USING ARMOURED CABLES

i) 1100V grade HR PVC/XLPE insulated PVC sheathed round wire armoured PVC overall sheathed cable with copper conductors shall be used for wiring wherever surface laid cables are specified for connecting from distribution board to light fittings and other equipment.

ii) While carrying out surface wiring using armoured cables, cable shall be supported

500mm apart to avoid sag. The cables shall be neatly clamped and should not create a shoddy appearance.

iii) Nylon/rawl plugs shall be used for fixing cables to ordinary wall / ceiling. The plugs

shall be fixed using the correct size of drills and screws as specified by the manufacturer. Using of wooden plugs are not permitted.

iv) Cables shall be laid in such a manner to avoid crossing / jumping of cables and shall

provide a very neat and tidy appearance. v) Suitable size double compression brass glands (Approved by CMRS as suitable for

flameproof area) shall be provided for cable entry / exit to any of the flameproof apparatus.

vi) The cables used shall have multistrand copper conductor. vii) The rate quoted shall include the cost of accessories required like FLP junction

boxes, saddles, consumables, etc., for supply and installation of complete wiring system.

B) WIRING USING PIPES

i) Wiring in the hazardous areas can be carried out using 1100V grade PVC insulated PVC sheathed cable with copper conductor in surface laid solid drawn or ERW welded pipe, if specified, for connecting from distribution board to other equipments in flame proof areas.

ii) Conduits shall be supported at a minimum distance of 1000mm horizontally and

500mm vertically, Nylon / rawl plugs shall be used for fixing conduits on wall / ceiling. The plugs shall be fixed using correct size of drills and screws as specified by the suppliers. Using of wooden plugs are not permitted.

iii) Conduits shall be laid in such a manner to avoid crossing of conduits. iv) Metal conduits are to be screwed tight to the apparatus. Conduit unions only are to

be used for jointing and couplers are not allowed. v) Flexible conduits are NOT allowed for use in hazardous areas. vi) Cables with multistrand conductors only are permitted for use in conduit wiring

system for hazardous areas. vii) The rates quoted for the conduit system shall include the cost of accessories

required for supply and installation of a complete conduit system eg., saddles, consumables etc.,

CONTROL OF ELECTRICAL SUPPLY CIRCUITS



The supply of electricity to a building or underground site containing explosives is to be controlled by one or more master switches outside the building or underground sites. Master switches should be close proximity to each other, identified and capable of isolating every conductor entering the building including the neutral of switches, starters, etc., If installed inside the building, these should confirm to the category of installations.

All circuits are to be provided with protection against over load and earth leakage. Over current protection may be given by automatic circuit breakers complying with IS : 3842 (Part-I) 1967.

11.00 EARTHING AND LIGHTNING PROTECTION

11.01 EARTHING

1 Entire system shall be earthed in accordance with the provisions of the relevant

IEC recommendations / IS 3043 - 1987 and Indian Electricity Rules, so that the values of the step and contact potentials in case of faults are kept within safe permissible limits.

2 Parts of all electrical equipment and machinery not intended to be alive shall have

two separate and distinct earth connections 3. All exposed metal parts such as HT / LT switchgear / power distribution

board/Lighting boards/feeder pillar enclosure, metal clad switches enclosure, lamps brackets, lamp holder, plug sockets enclosure, lighting poles, junction box etc., shall be properly earthed by connecting these to the earth electrode by means of bare GI wire/flat or single core cable of approved size to pass the fault current safely to earth in case of leakage at the apparatus or in the system. The minimum size of earthing wires is indicated below:

a) Main earthing ring (connecting the earth pits) 50 x 6mm GI strip or equivalent,

laid at a depth of not less than 700 mm.

b) Loop earthing ring for main distribution board/LDB/ sub distribution board earthing - minimum size of 20 x 3 mm GI strip buried in floor/wall/trench etc., in side the shop.

c) Light point earthing - same size as point wiring single core PVC insulated

copper wire / bare copper wire in case of GI / MS conduit wiring of same size or equivalent.

4 A common grounding system network will be made underground by using 50 mm x

6 mm GI earthing strip connected to earth electrodes in loop-in & loop-out system and connecting the electrical equipment to network. In RCC cable trench one number earth strip of size 50 x 6 mm shall be run throughout the length of the trench.

5 The ring earthing system around each building shall be laid at a distance of

approximately 1.5 m from the building and at a depth of approximately 0.8m. The ring shall be bonded at intervals to the building steel structures, reinforcement of building columns and also to pipes, wherever they are crossing. The earth ring shall further be connected at intervals to deep earthing electrodes to achieve a combined earth resistance of less than one ohm.

6 For the purpose of dimensioning the earthing lines / conductors, the duration of the

earth fault current shall be taken as 0.3 seconds.



7 The power supply cables (LT) from the sub-station and the distribution cables to

individual motors shall have 4 / 3.5 cores. 8 LT power supply cables shall have four cores and the fourth core shall have cross-

sectional area of 50% of the other cores generally. The fourth core of the main supply lines shall be connected to the solidly earthed neutral bar in the substation switchgear as well as at the earth bars in power distribution boards.

9. All the equipment will be connected to earthing grid by using conductors as per

Table given elsewhere in the tender.

11.02 EARTH STATIONS

A. EARTHING ELECTRODES

All the earth electrodes will be made of test pit type made with B-class GI pipe ( 3.0 m long 65mm dia) driven to ground, pit filled with charcoal and salt. Bottom half of the pipes shall have holes drilled at intervals on its surface. Removable caps shall be provided at the top of the pipes to facilitate pouring of water. Suitable clamps shall be provided with the electrodes for connecting earth conductors. Funnel to be handed over for facilitating water pouring

B. EARTHING PITS

The pit for an earth electrode will be of size not less than 600 mm x 600 mm x 4000 mm and will be dug with its centre at minimum 2.5 metres away from the edge of any building/masonry work.

Homogeneous mixture of charcoal, salt and sand shall be made on ground and poured into pit covering the electrode. The minimum requirement shall be 20 kg charcoal and 30 kg salt per pit.

The space above the salt/charcoal layers will be filled with loose sandy soil, upto a level of 550 mm from ground level.

A cement concrete chamber of inner dimension 350 x 350 mm will be erected around the top of the earth electrode so that top surface of the chamber is flushed with the outside finished ground level.

Earth pits shall be located as per approved grounding layout drawing.

Distance between two earth pits shall not be less than 6 Meters.

Masonry work of the earthpit shall be carried out only after well ramming of riddled soil and complete settling of loose soil. As such, electrodes shall be fixed in ground before commencement of any other work of the installation and masonry work shall be taken only at the end after completion of all other works in the installation.

C. RESISTANCE OF EARTHING ELECTRODE

The earth resistance of each electrode will be measured by an approved earth testing apparatus and recorded. In case the earth resistance is more than the required value, as per IS: 3043 additional earth pits, earthing ring as required shall be installed. The

resistance of earth grid shall be less than 1 (ohm) Ω.

D. CHECKING PROCEDURES TO BE FOLLOWED



The contractor shall keep ready the pit of proper dimensions and various materials for the earthing installation, for checking by the engineer. The contractor shall also arrange all measuring/testing instruments at his cost for testing. In case the pipe is buried without the above check being carried out, the contractor will be liable to open out filled up earth and re-do after proper check at his own cost. The earth pit is to be erected in all kinds of soil including rocky soil and the party shall quote their rate accordingly.

11.03 EARTHING RING MAIN

The earthing ring shall be made by GI strip/wire of specified size. The ring shall be laid in the cable trench along with lighting cable and connected to all the earthing pits as shown in the drawing.

Installation of Earthing Circuit. Earthing of HT/LT switch gear, Power Transformer, PDB/MLB/DB/DFB Etc.

Each of the above equipment shall be provided with two separate earth terminals. An earth busbar of appropriate cross section shall be provided inside the equipment board and connected to the earth terminals provided on either side of the board.

Adequate number of holes/terminals shall be provided on earth bus with suitable provision for terminating the earth wire. GI strip / Armored Aluminum conductor single core cable of suitable size shall be used for connecting the two earth terminals of the equipment independently to the earthing main in the shop.

11.04 EARTHING OF LIGHT FIXTURES AND SOCKET OUTLETS

The single core PVC insulated/bare coper wire of same size as the phase conductor or 8 SWG GI wire and the third core of the flexible wiring cable shall be used for earthing the light fixtures and single phase socket outlets etc.

Earthing of metal boxes and brackets

Not less than 14 SWG GI wire shall be used for earthing all metal boxes and brackets.

11.05 LIGHTNING PROTECTION

All buildings and plant structures vulnerable to lightning strokes owing to their height or exposed situation shall be protected against atmospheric flash-overs and lightning strokes in such a manner as to eliminate any danger to the personnel employed therein.

The installation shall conform to IS:2309-1969 as amended up to date.

Conductors on parapet: The conductors shall be coursed along ridges, parapets, edges of the flat roof, over flat roof where necessary in such a way as to join each air terminal to the rest. The conductors shall be fixed securely with galvanized iron staples 40mm (1 1/2") long and spaced not more than 4' (1.3m) apart.

Vertical down conductors: These conductors, shall originate direct from earth station, shall be connected to parapet conductors or air terminals and shall be coursed through shortest possible routes without abrupt turns or kinks. While passing through cornices, these shall pass through GI pipe (Class 'B') having adequate bore. These conductors shall be fixed securely with galvanized iron staples 40 mm (1 1/2") long and spaced not more than 3' (1.0 m) apart.



Protection against damage and corrosion: No upturns are permitted and any bend necessary shall have a permissible radius. The end of GI pipe projections on wall shall be properly sealed with bitumen compound to prevent corrosion.

Metallic objects near conductors: The conductors shall be so laid as to maintain a separation distance exceeding 2 metres (6' 6") between:

(a) Any electric conductors running in parallel. (b) Metallic objects, viz. iron girders, water tanks, iron stair case, water/gas

pipes inside or by the side of the building. All external metallic objects viz. water tanks, gutters, rainwater down pipes, water mains etc., shall be bonded to the nearest conductor by means of a short tail.

Joints and bonds: All joints between conductors shall be made after cleaning and tinning the ends of conductors to be joined, binding them together for about 100 mm (4") with No.14 SWG GI wire and then soldering them together. Bonding shall be as short as possible. All joints and bonds are to be mechanically and electrically sound.

Earth stations: Similar to installation earths as specified elsewhere. Minimum number of earth station is two. The resistance to earth of individual earth stations shall be

tested by earth testing megger and must not exceed 5 Ωs.



12.00 ERECTION GUIDELINES

12.01 GENERAL

All electrical equipment shall be erected, tested & commissioned as per relevant IS standards, codes of practices and good engineering practice. Civil aspects mentioned in following specification shall be adhered to while planning civil work. Though major Civil Work will be done by other agency but minor Civil Works shall be included in the scope of work of the electrical contractor as mentioned in the following paragraphs and the same shall be included in the rates quoted.

The scope includes receiving and storage of equipment at site transportation, handling, installation, testing and commissioning of all units/items under the scope of supply of the contractor. His scope also includes installation and termination of cables to / between owner's electrical equipment and sealing of cable conduits, floor / slab openings, minor civil works required for erection etc.,

Unpacking shall be properly done at site. Break-age, defects, missing (if any) items shall be made good immediately. All packing materials shall be removed and components shall be thoroughly cleaned.

Transportation to respective foundation, after checking and unpacking, shall be done by the contractor. Transportation shall be done systematically using wall / floor openings, provided exclusively for the purpose, using proper lifting tackles. No part of GI piping, structures, ducts shall be used for lifting equipment without prior consent of owner / engineer.

Contractor shall be fully responsible for claiming any damages from insurance company wherever required.

Shipping sections of equipment supplied at site shall be assembled correctly (with proper alignment) and all electrical connections shall be done between various shipping sections as per manufacturer‟s drawings/ instructions.

Base frames of equipment shall be fixed to foundations by anchor bolts or by welding to embedded steel inserts.

Equipment / cabling / earthing and other electrical system installation shall be carried out in accordance with the latest editions of relevant Indian Standards and codes of practice and the installation shall fully comply, with the requirement of the Indian Electricity Rules and statutory regulations, that are in force, at the place of installation.

12.02 SUB-STATION SAFETY EQUIPMENT

RUBBER MAT

“ELECTROMAT” INSULATED MATS SHALL AS PER THE LATEST IS 15652-2006.

I. SIZE : 2 MM THICK – SUITABLE UPTO 3.3 K.V. CLASS “A” INSULATION WITH ISI MARK & CPRI TESTED.

SPECIFICATIONS S.NO. Details of the Test Unit Poly Electro safe, 2.0 mm

thickness

1 Tensile Strength N/mm2 22.40

2

Elongation % 318.50



3 Insulation Resistance Mega Ohm

14, 94, 000

4

Die Electric withstand Test

KV 30 KV for 1 min

5

Breakdown test KV 62.0

6

Effect of fire Second 1.0

7

Effect of Acid, Alkali, Diesel & Transformer Oil

% -19.8 & + 2.31 of Original value

8 Ageing Test % -1.89 & + 4.10 of original value

9.

Leakage Current Test in oil

Ma 0.2 ma at 6.6 KV

a) Color : Blue or Grey without Metallic Derivatives

b) Thickness Tolerance + 10% II. SIZE : 2.5 MM THICK – SUITABLE 3.3 KV TO 11 KV CLASS”B” INSULATION WITH ISI MARK & CPRI TESTED.

SPECIFICATIONS

S.NO. Details of the Test As per IS:15652-2006

Unit Poly Electro safe, 2.5 mm thickness (Tested Values)

1 Tensile Strength N/mm2 25.10

2

Elongation % 336.50

3 Insulation Resistance Mega Ohm

11, 88, 370

4

Die Electric withstand Test

KV 45 KV for 1 min

5

Breakdown test KV 75.0

6

Effect of fire Second 1.0

7

Effect of Acid, Alkali, Diesel & Transformer Oil

% -19.8 & + 2.31 of Original value

a) Color : Blue without Metallic Derivatives

b) Thickness Tolerance + 10%

FIRE SAND BUCKETS

Each substation will additionally be provided with 4 nos. Fire river sand filled buckets with stand.

SHOCK TREATMENT CHART Each substation & switch room shall be provided with Minimum two numbers of nicely framed shock treatment charts at easily viewable and readable place.



CAUTION BOARDS & DANGER PLATES The substation panels, transformer yards and switch board panels shall be provided with caution boards & danger plate to avoid unauthorized entries. SINGLE LINE DIAGRAM All the substation shall be provided with nicely framed as built Single Line Diagram indicating system voltage, current rating, fault level, feeder number and capacity, fuse rating, connected equipment tag no. etc.

12.03 CLEARANCES All electrical equipment shall have adequate clearances from the point of view of

operation and maintenance & conform to IE Rules The clearance between the ceiling of the electrical room and top of the Tallest

equipment shall not be less than 1 meter. Back clearance - Minimum 1000 mm Front to front clearance between boards - Minimum 2000 mm Clearance between two panel boards in a row - Minimum 1000 mm Clearances between front of the panel to - Minimum 2000 mm the wall of the room Clearance between the wall & end of - Minimum 1000 mm Switchgear / PDB Back to back clearance - Minimum 1500 mm Back to front clearance - Minimum 2000 mm Clearance between the bottom of the - as per statutory ventilation duct & top of the electrical requirement and equipment regulations 12.04 HT / LT SWITCHGEAR Scope under equipment erection shall include:

a) Physical inspection and handling b) Installation on the foundations or supports as the case may be as per general

guidelines given in section. c) Assembly and interconnection of shipping sections as per supplier's

instructions. d) Mounting and connection of wiring of loose supplied items if any. e) Checking of components, wiring and interlocks as per approved drawings. f) All moving parts shall be checked for easy and free movement.



g) Applying touch up paints. h) Making the equipment ready for energizing after completing all associated works,

PAT etc.,

Fixing / foundation bolts, nuts, lock nuts, washers etc., shall be properly fixed/ grouted in the pockets already provided or to be provided by the contractor.

HT / LT switchboards,/ PCC / power distribution boards shall be tack welded to steel bars / plates provided in the floors. Cross support structures, if required be welded to inserts. If tack welding is done, foundation bolts are not required for the equipment.

The equipment shall be installed on the foundations / supports / floors firmly in such a way that there will not be any vibration during operation of the components on the boards.

Normally equipment like remote push button stations will be supplied without pedestals. The push button stations shall be mounted at convenient places like walls, columns, cable rack supports etc. Pedestals wherever required, shall be fabricated from the steel sections used for fabrication of cable supports/racks and installed properly.

For mounting of equipment like SFUs, Plug and Sockets on the walls/ column suitable support brackets shall be fixed/grouted by the contractor. After installation of equipment, all interconnected wiring shall be checked thoroughly for correct connections, with the wiring and schematic drawings of the manufacturer and the drawings supplied by the engineer/owner before energizing.

All cable/bus bar connections shall also be thoroughly inspected and checked for correctness, absence of foreign materials, tightness etc., before energizing the equipment. All labeling shall be checked against drawings. Distinct duplicate earthing shall be done for the metallic bodies of the equipment.

All components within the main equipment shall be tested for proper performance & correct operation before commissioning of the equipment.

12.05 LIGHTING BOARDS

MAIN LIGHTING DISTRIBUTION BOARD / FEEDER PILLAR

The main distribution board shall be floor-mounting type. Suitable base channel shall be supplied and the floor inserts if necessary, incorporated in the civil works by the contractor. G.A drawing shall indicate foundation details and insert requirement also along with general arrangement of panel boards for approval. Contractor has to carry out chipping of floor etc., without any extra cost, installation of equipment includes supply and installation of necessary hooks/arms for cable support and all other connected works.

Feeder Pillars shall be installed on Civil foundations to be constructed by the contractor. There shall be pipe inserts for taking the cable in/out of the feeder panel. This shall be included in price quoted for installation of Feeder Pillar.

12.06 MLDB / Lighting Distribution Boards / Sub-distribution boards

The lighting distribution boards/sub-distribution boards shall be generally mounted on wall or structural column. The distribution board shall be mounted in such a way that



the operating handle of the incomer and outgoing switchgears shall not exceed 1800 mm from the finished floor level for easy operation. The panel will be fixed on the wall/column securely by means of suitable bracket and fixing clamps/bolts etc. The contractor shall also design and incorporate in the civil works, necessary pipe inserts etc., for cabling to the board.

12.07 LIGHT FIXTURES, FANS ETC.

All light fittings such as well glass, fluorescent tube light fittings, street light fixtures, flood light fixtures etc., are to be installed as per approved layout drawings, and direction of site engineer conforming to Standard installation norms and practices. Apart from the technical requirements, aesthetic requirement also to be satisfied while designing supporting arrangements & fitting layout. Depending on the location and type of fittings the mounting arrangements has to be made. Usually MS brackets / MS hooks / GI pipe brackets / MS conduits / chains slotted channels etc., will be used. Suitable inserts shall be provided in the civil works for supporting heavier fittings or where continuous row of tube light fittings mounted on slotted channels are to be hung. For mounting lighter fittings like One No. tube light or decorative fittings etc., regular inserts are not necessary. Anchor fasteners shall be used for this purpose. However, care shall be taken to use correct size of drills specified by the manufacturer for each different type of bolts. Care shall be taken to avoid angulation which, will weaken the installation Wherever concealed wiring is provided concealed type fan hook boxes (2 mm thick M.S. box with 10 mm rod) shall be provided for suspending ceiling fans.

All brackets, hooks, fan hook boxes etc., made of MS shall be finished with two coats of „Red-oxide‟ paint and one coat of final finish of approved colour.

All the M.S / G.I supporting brackets supplied /fabricated & installed

Supply & installation of Brackets down rods / chains for suspension of light fixtures & fans irrespective of length are included in the Scope.

12.08 CONTROL SWITCHES, SOCKET OUTLETS AND SWITCH BOARDS

All the control switches, sockets and switchboards are to be installed as per approved drawings, and as per specification, standard norms and direction of site engineer. The switch controlling a socket shall be connected on live side of the socket.

12.09 JUNCTION BOX, OUTLET BOX, ANCHOR BOX ETC.

All junction boxes including terminal blocks wherever required outlet boxes are firmly fixed to walls/ceiling/structures using MS bracket and bolt and nuts. The front cover of these boxes shall be flush with the wall/roof finish in case of concealed mounted type. The location of these boxes shall be selected in such a way that easy accessibility is available for maintenance.

12.10 CABLE TRAYS / RACKS STRUCTURES FOR CABLE LAYING Cable Trays/ racks (GI/FRP) shall be installed, complete with all necessary coupler

plates, drop out trays, horizontal elbows vertical elbows, tees, reducers, hangers, supports at every 1.5 meter length.

Constructional details and supporting arrangement for the cable trays, shall be furnished by the contractor. Cable racks for cable trays shall be fixed at a maximum interval of 1.5 m.



Cables leaving the ground / floor shall be protected upto 2m height by conduits / metallic guards.

Ladder type cable racks and trays shall be provided to lay cables. Cables shall be laid in separate racks according to the voltage / application classification.

All necessary frame works and fixings for the support of cables and accessories shall be supplied.

Cables shall be suitably protected against heat and mechanical damages.

Cables shall be laid on ladder type cable trays. Ladder type cable trays shall be selected from sizes 150mm, 300 mm, 450 mm & 600 mm. width. The details of Ladder type cable trays is as under

Tray Size Runner Ht. Runner collar

Rung Size Rung Spacing

Thickness

300mm 75mm 30mm 35mmx15mm 225mm 2.0mm



Supporting vertical racks and horizontal hooks shall be of 50 x 50 x 6 mm MS angles. Cable racks and hooks shall be welded construction.

To avoid damage during cable laying, cable structures shall have no scales, abrasive or rough surfaces for cutting edges.

If galvanizing is spoiled at any place, the same shall be painted with cold galvanized paint.

12.11 CABLING INSTALLATION

The cables shall be laid in RCC cable trenches / GI pipes / cable trays / directly buried in the ground. In paved area cable shall be laid in GI pipes only.

Except civil work of RCC cable trenches, Excavation of trenches of required width and depth in all types of soil Clearing natural obstructions including rock cutting if any required along the cable routing , Laying of cable on 8 cm of riddled sand and covered with 8 cm of riddled sand providing 75mm thick RCC cover slabs back filling with earth (after cable laying), and finally compacting to original ground level of cable trenches, all other equipment, materials and components required for cable laying is included in the scope of work.

The maximum trench depth shall normally be 1.5m If the trench is to cross railway tracks / roads or any load bearing area the cables shall betaken through suitable GI conduits/ pipes / ducts. Installation of cables directly buried in ground shall generally conform to the requirements given in IS:255.

Cables laid directly in underground trenches ( where permitted by owner/consultant) shall be in one layer only, more than one layer is not permissible.

For crossing the road / rail track, cables shall be laid in concrete cable ducts/ hume pipes/ GI pipes. 25% spare duct /pipe openings / pipes shall be available.

The scope includes but not limited to,



i) Cable inspection and handling. ii) Laying, meggering, termination, dressing and clamping of cables. iii) Tagging and marking of cables. iv) HT/LT tests on cable. v) Identification of phases. vi) Connection of equipment. vii) Making of cabling ready for charging after completing all associated works.

12.12 IMPORTANT NOTE

For cable installation/laying, if cutting of foundations or structures is required, prior permission shall be obtained from the owner/ engineer.

Wherever a cable crosses a temperature expansion joint in structure, a sufficient sag shall be provided. Cables of different voltage levels and noise classification if any, shall be taken on different trays/racks (or other means specified). When cables of different voltage levels or noise classes are installed on the same tray/ rack/place, the same shall be separated by grounded steel barrier. In no case instrument cables are to be run along with power cables. Cable trays / racks shall not be used as a walkway or ladder either during installation or while cable pulling or at any other time of installation.

12.13 CABLE INSPECTION AND HANDLING

On receipt of cable drums at site, the contractor shall inspect each cable drum and check for size, length and type with respect to supplier's seal and marking / documents. Loading and unloading of cable drums shall be done by crane and drums shall be carefully lifted and deposited on ground. If crane is not available then the drum shall be carefully rolled down on a suitable ramp of rails. The drum shall be rolled as per the direction indicated by the arrow on the drum in order to prevent the turns of the cable from loosening on the drum. Under no circumstances shall a drum be dropped to the ground as the shock may cause serious damage to the inner layer of cables. No cable drum shall be slung, except, by a bar or spindle through the center of the drum. In no case, the drum be stored on the flat i.e with the flanges horizontal. Only cable jacks shall be employed for removing the cable from the drum. For removing the cables from the drums, the drum should be properly mounted on jacks on a cable wheel, making sure that the spindle is strong enough to carry the weight without bending and that it is laying horizontally in the bearings so as to prevent the drum creeping to the one side or the other while it is rotating. The drums should be mounted such that when the drum is turned against the direction of arrow, the cable



is payed out from the top of the drum to avoid any danger of bending and breaking the cable if unreeled from the bottom.

12.14 CABLE PULLING AND LAYING

Cable rollers shall be used for pulling and laying of cables. Cable shall be properly handled while laying to avoid damage to the cables. Cables may be pulled by hand or by the use of pulling eye securely clamped to the conductors. Jacket armour or outer jacket shall be secured to the clamp to prevent relative movement. If mechanical means are used to pull on the conductors, force must not exceed values recommended by the manufacturer. The pulling eye shall be securely fastened to the ends of all the conductors so that the load is evenly distributed. The ends of all cables to which pulling eyes are attached shall be cut off before terminations are made. Bending radius for permanent bends shall not be less than 15 (fifteen) times outer diameter of the cable. When pulling cables, the bending radius, pulling tensions and wall pressure at bends shall be strictly in accordance with cable manufacturer's recommendations.

12.15 CABLE CUTTING AND SPLICING

Cables cut from the drums, and distributed for various route lengths shall be carefully planned bearing in mind that splices shall not be allowed except on specified approval for larger length (cable splices are not permitted normally). All cables shall be cut to required lengths only after assessment of correct lengths required, by actual measurement at site. The contractor shall ensure that wastage of cables as short lengths is minimized, by resorting to most economical cable cutting schedule.

12.16 CABLING ON TRAYS/RACKS

Cabling may have to be carried out

a) on ladder type (GI/FRP) cable trays/slotted channels; b) in rigid steel conduits; c) in perforated type GI trays; d) in duct banks or embedded conduits; and e) buried underground/in concrete cable trenches.

Lighting, Power and control cables shall be properly segregated and clamped on the trays/racks.

A clearance equal to one diameter of the bigger cables shall be maintained between two adjacent higher rated power cables on the trays/racks/ risers and clamped by separate clamps which shall follow the profile of the cable. Common clamping/ strapping shall be done for a bunch of control cables and small power cables. Cables shall be clamped at every 1.5 meters on the trays/racks slotted channels in trenches.



Cable leading to cable box of an equipment shall be supported at a distance of 450 mm from cable gland/cable box and cable gland shall be suitably earthed. Cable shall be clamped only after the cables are neatly arranged, dressed and kept in position.

12.17 CABLING IN CONDUITS/PIPES

Cables through floor slabs/walls are to be passed through rigid, galvanized steel conduit. Cables entering or leaving the conduits shall be sealed with non-hardening silicon compounds. It is also contractor's responsibility to satisfy him-self regarding the conditions of the embedded conduits. Prior to pulling cables, each duct shall be rodded by suitable means. After rodding a 8 gauge pulling wire is to be left in each duct. The ends of the conduits shall be plugged when work is halted for any period of time. Laying of cables (in trenches in ground subject to owner‟s Consultant‟s permission) Cables shall be laid direct in ground in all kinds of soil or in the prepared RCC ducts. If required, 100 mm dia (min.) GI pipe shall be provided wherever these cables cross the roads/water lines, sewerage lines etc. GI pipe shall also be provided wherever the cables enter the building. Cables terminating to any equipment shall also be encased in a GI pipe raising from the ground level to the equipment connection. Cable racks for cable trays shall be fixed at a maximum interval of 1.5m Cables leaving the ground / floor shall be protected upto 2m height by conduits / metallic guards. Ladder type cable racks and trays shall be provided to lay cables. Cables shall be laid in separate racks according to the voltage / application classification. All necessary frame works and fixings for the support of cables And accessories shall be supplied. Cables shall be suitably protected against heat & Mechanical damages.

12.18 The sizes of GI pipes shall be as given below :

Size of cable

GI pipe

Upto 4 x 50 sq.mm 65 mm dia

3 1/2 x 70 - 3 1/2 x 90 sq.mm 80 mm dia 3 1/2 x 120 - 3 1/2 x 185 sq.mm 100 mm dia

3 ½ x 240 to 400 sq.mm 125 mm

Approximately 3 m of surplus cable shall be left on each end of the cable, on each side of the underground joint, at entries and places as may be decided by the engineer-in-charge. The surplus cable shall be left in the form of a loop. The trench cut through the road-ways or other paved areas inside building shall be restored to the same density and materials as in the surrounding areas at no extra cost. Black-toping of the road will, however, be not done by the contractor.



Cable route markers shall be provided along straight runs of the cable and at locations approved by the engineer-in-charge, at intervals generally not exceeding 30 meters. Wherever cables are taken in conduits both ends of the conduits shall be sealed after laying the cable to avoid the ingress of water. All associated materials like sand, bricks, clamps and route markers etc., shall be supplied by the contractor. The cost for laying of cables shall be inclusive of all these items. Laying of cables on walls/columns/ceiling/structures All the lighting cables are to be neatly bunched and laid on surface of walls/ columns/ ceiling / structures. All the cables laid on surface of walls / columns / ceiling shall be supported by using clamps / rawl plugs and screws / cable hooks. No wooden plugs shall be used. All the cables laid on structures shall be fixed with suitable clamps. Cables are to be supported at minimum regular intervals of 0.5 m horizontal and 1 m vertical run. Care is to be taken while laying/pulling so that insulation of cables does not get damaged.

12.19 CABLE ENTRY AT BUILDINGS

Pressure seals and fire barriers shall be provided at the places where cables enter pressurized electrical rooms. All wall openings shall be effectively sealed after installation of cables to avoid water leakage. Wherever buried cables enter the buildings the same shall be taken through GI pipes embedded at the entry portion. After taking cables through the above pipes, the same shall be sealed by using suitable compound so as to avoid ingress of water.

12.20 CABLE JOINTING

Cable joints shall not be allowed, unless permitted by the owner / engineer in very exceptional cases.

12.21 CABLE TERMINATION:

Scope of Erection shall include cable termination to all equipment supplied by contractor as well as to field equipment likes motors, stations, I/o cabinets etc. Unit rates shall be applicable for temperature equipment not supplied by the contractor. Cable shall enter motor terminal boxes through the bottom if this is not practical through the side. Top entry to motors to be avoided. Connection of feeders in motor terminal boxes shall be done in accordance with standards. Cable shall enter switch boards, distribution boards etc., from top or bottom depending on equipment feature. Drops/ risers to individual cubicles shall be neatly laid out and may be supported on channel type frame work.



Conductors of control cables where applicable shall be carefully and neatly arranged in a compact group at point of termination. The entire group shall be laced and tied with nylon strips to the point of fan out for connection of individual conductors to terminal blocks. Spare conductors shall be terminated with sufficient length to permit future connection to the terminal block. All the cables shall be terminated to the switch terminals, sockets, busbars etc., by means of suitable size of cable socket/lugs/ferrules preferably of tinned copper. Crimping tools shall be used for fixing the ferrules / sockets to the cable ends. (This shall be applicable even in case of single strand cable ranging from 1.5 sq. mm). For connections to busbars etc., brass or cadmium plated nuts / bolts and washers shall be used. Suitable measures shall be taken to avoid heating due to bimetallic contacts.

12.22 CONDUIT AND CABLE IDENTIFICATION

All conduit and PVC cable runs shall be identified at all terminations, including junction boxes, exposed points etc. Each conductor termination shall have an identification. Where cables are laid in trays identification tags shall be provided at least once in every 15 metres. Colour coding for conductors The colour coding for conductors of power cables shall be as per IS 1554 Part (I)-1976. The colour coding shall be applied to for power and lighting feeders terminating in a) 415V switchboard including all feeders. b) 415V isolators and socket outlets and junction boxes. Joints/terminations of earth conductor All joints of bare earth strips shall be welded to form a rigid earthing ring. All such welded joints shall be given necessary coating of bitumen compound to prevent corrosion. Welded joints shall be considered as a part of laying of earth conductor and they shall not be considered as terminations for payment purposes. No extra costs shall be applicable for joints in the earth buses. Crimping type lugs shall be used for termination of round earth conductors. Contractor shall make his own arrangements for necessary welding equipment, crimping tools, drilling machine and other tools/tackles necessary for completing the installation. Any modification suggested by the Electrical Inspector shall be done by the contractor at no extra cost. All the earth electrodes in the plant will be interconnected by flat GI earthing conductors buried directly in ground. In all switch board rooms earthing flats will be run along walls, column and horizontal and vertical structural members using clamps/GI hardware.



12.23 ELECTRICAL WIRING FOR ILLUMINATION POINT WIRING

Point wiring is inclusive of Circuit wiring The Scope includes: Circuit wiring from FLP/NFLP DB/Marshalling box to the Lighting fixture using armoured conductor of min size 2.5sqmm for single/group control upto 3 lighting fixture. The scope includes clamping, dressing, connections, glanding, termination etc all complete. However the cost of lighting fixtures(lamps)/fans/socket outlets and its installation/commissioning shall be paid separately as per unit rates quoted.

12.24 DISTRIBUTION

The balancing of circuits in the poly-phase installations shall be ensured. In large rooms, light and socket outlet points shall be distributed over more than one circuit.

12.25 JOINTS AND LOOPING BACK

Unless otherwise specified the wiring shall be done in the "Looping" system. Both the phase and the neutral conductors shall be looped at the switch box/junction box nearest to the point of entry. Jointing of cables at junction boxes located on ceiling are not allowed. No bare or twisted joints are allowed at any point. Looping neutrals between different circuits in point wiring is not allowed. No joints in conductors shall be made at intermediate points in the through run of cables unless the length of a final sub-circuit, sub-main or main is more than the length of the standard coil, in which case, jointing shall be done by soldering.

12.26 CONDUIT SYSTEM

a) G.I conduit Conduit shall be of galvanized iron, rigid, screwed type. The internal bore of all

conduits must be smooth and the ends free from burrs. The conduits upto 32 mm dia shall be 1.6 mm thick and conduits above 32 mm shall be of 2mm thick.

b) M.S. Conduits Conduit shall be of mild steel, rigid, screwed type and should be stove

enameled. The internal bore of all conduits must be smooth and free from burrs. The conduits shall be 1.6 mm thick upto 32 mm dia and above 32 mm, it shall be 2 mm thick.

c) PVC conduit Rigid PVC conduit suitable for electrical wiring may also be used wherever

approved by Engineer. It will be of approved make of minimum 1.8 mm thickness.

The length of the conduit (MS/GI/PVC) will also include all accessories like

joints, bends, junction/pull box etc., required as per site conditions and fish wire for drawing-in cables.



12.27 Casing „N‟ capping

The casing „N‟ capping wiring shall be done in accordance with the specification laid down as per standard practice.

12.28 USE OF PIPES

All the GI pipes supplied shall be suitable for cable drawing, without any internal burrs, smooth internal surface and threaded at both ends with coupling at one end. The installation work of cable includes making the necessary bends using suitable bending machine without damage to the pipe, making additional threading at cut ends, jointing with coupling including supply and installation of all required accessories like junction/pull box etc.

Class `B' type GI pipes as per IS: 1239 shall be used at the

following locations:

a) Cables running on floor shall be laid in buried GI pipes. b) All cables laid upto a level of + 2000 mm from floor level shall be laid in GI

pipes. c) Cables crossing road, entering buildings from outside through

wall/foundations etc., shall be laid in GI pipes. d) GI pipes shall be used for taking the cable to feeder pillar through

foundation or for taking cable to street light poles. e) All GI pipes laid shall have a suitable fish wire for drawing in cable.

Number of wires in a conduit/radius of conduit bending

The number of wires in each conduit shall be as per relevant IS.

Draw-in-boxes must be provided so that the wires are not drawn round more than two right angle bends or their equivalent. The radius of ends must not be less than the standard normal bend. The standard radius of normal bends shall be as tabulated below (For single core wires):

Normal radius of conduit bends

Outside dia. Of conduit

Radius of Normal bends

Remarks

20 mm 50 mm

Radius measured from centre of curvature to axis

25 mm 60 mm

32 mm 80 mm 40 mm 95 mm

50 mm 125 mm

12.29 INSTALLATION OF TRANSFORMERS

In case of transformer, the accessories shipped loose by the manufacturer shall be assembled by the contractor at site



The contractor shall place the transformer on the rails at allocation indicated in the layout drawing of the substation then arrangement shall be made to prevent movement of transformer in any direction. All accessories shall then be properly mounted both and both mechanical and electrical connections shall be made as per the manufacturer‟s drawing and owner‟s drawing. Two samples of oil from transformer, one from the conservator and the other from the tank through drain valve shall be tested as per section 8-4 of IS:1886 for dielectric strength and if it is observed the values are low, the oil has to filtered and if required drying of transformer shall be carried out to get required dielectric strength as per relevant Indian standard. Dielectric strength shall be checked again be fore energizing. The joint between the flange of transformer and the transformer terminal box of the bus duct / cable shall be checked for air tightness. Whenever the power / control cables project above ground, for termination of cable box / marshalling box, the same shall be run in GI conduits of suitable cross section and the same shall be supported properly and the pipe ends shall be sealed with bitumen compound. The contractor shall follow the following sequence of erection of transformers :

1. Unpack the closed / packed case and compare with packing list. 2. Physical checks and inspection, pay particular attention to :

a) Tank sides or cooling sides dented. b) Protruding fitting damaged. c) Oil sight glass broken. d) Bushings cracked or broken. e) Bolts loose due to vibration in transit. f) Oil Leakages

3. Transportation to erection site. 4. Erection of foundation / Rails. 5. Assembly of transformer. a)Radiator Bank b)Cooling fans.

c)Buchholz relay d)Conservator Tank. e) Explosion Vent f) Air Breather Silica-gel g) Marshalling Box. h) Tap Changer i) Bushing j)Thermometer etc.

6. Checking of oil level filteration / drying of oil. 7. Alignment 8. Anchoring and tack welding 9. Mechanical Checks 10. Wiring and sealing of wiring of assembled parts. 11. Laying, meggering, termination, dressing and clamping of cable. 12. Tagging and marking of cables. 13. Testing of cables. 14. Earthing – Earthing station, earthing of transformers, earthing strip, earth

resistance to comply with IER (latest revision).



15. Testing of assembled parts 16. Testing and calibration of meters, relays, CTs, PTs, thermometers etc. 17. Connection of Bus duct / bus bars / Cables to primary and secondary of

transformers. 18. Series of tests on transformer as per supplier‟s / engineer‟s instructions,

IS:1886 and manufacturer‟s recommendations. 19. Submission of complete report in the format. 20. Charging of transformer 21. Loading of transformer 22. Painting work 23. Handing over to Owner / engineer.

13.00 TESTING AND COMMISSIONING

13.01 GENERAL

The successful Bidder, based on the broad outline procedure indicated in this specification, shall finalize with owner / engineer, the detailed procedure for testing and commissioning along with time schedules for both. The contractor shall adhere to the general guidelines given for testing & commissioning of the equipment/items implicitly covered under heading special instructions to contractor general condition of contract and technical specification. The intention of specifying below, the procedure for testing and commissioning and different tests to be conducted, are only to give guideline to the contractor. The contractor shall not restrict himself in carrying out only the tests specified here, but all tests as per relevant Indian Standards shall satisfactorily be conducted on each equipment. On successful completion of erection of each item /equipment, a final inspection will be carried out at site by owner /engineer, for correctness and completeness of erection. The successful Bidder shall provide adequate supervisory/ skilled personnel and all tools and tackles, testing equipment and instruments required for complete checking of installations and testing and commissioning of all equipment and accessories. The Bidder shall furnish with the offer a complete list of equipment, tools and tackles, instruments etc. which he intends bring in to site for erection, start up, testing and commissioning of equipment. The testing and commissioning of all equipment under the scope of the Bidder shall be carried out in accordance with the latest edition of relevant Indian Standards and IE Rules. The testing of all sub systems as well as the equipment as a whole shall be carried out to ensure that the equipment and its components are in satisfactory condition and will successfully perform their functional operation. Test reports shall be submitted in required number of copies duly signed by the BIDDER, and OWNER. The results of all tests shall confirm to the requirements of the specification as well as any specific performance data guaranteed during finalisation of the contract.



All equipment after testing shall be energized only After certification by the qualified testing engineer that the equipment is ready for energisation and with \ the concurrence of OWNER. The testing and commissioning of all equipment under the scope of the Bidder shall be carried out in accordance with the latest edition of relevant Indian Standards and IE Rules. The testing of all sub systems as well as the equipment as a whole shall be carried out to ensure that the equipment and its components are in satisfactory condition and will successfully perform their functional operation. All tests shall be carried out by the Bidder using his own tools, instruments, personnel etc. The tests to be carried out on each equipment shall be indicated by the Bidder in the offer and shall be mutually agreed before placement of order. Test reports shall be submitted in required number of copies duly signed by the Bidder, and OWNER. The format for test reports shall be mutually agreed. The results of all tests shall confirm to the requirements of the specification as well as any specific performance data guaranteed during finalisation of the contract. All equipment after testing shall be energized only after certification by the qualified testing engineer that the equipment is ready for energization and with the concurrence of OWNER.

13.02 MECHANICAL INSPECTION AND CHECK UP OF THE EQUIPMENT

After installation, but before any power supply is connected, the contractor shall make a complete mechanical check & clean all erected electrical equipment & systems. This shall include, but not limited, to the following:

i) Visually inspect all equipment/item for defects if any & check equipment

numbers against drawings to ensure that equipment has been correctly located and proper installation is done.

i) Check name-plates of individual feeders & others, distribution boards, distribution fuse boards etc., for conformity with data given on the supplier's drawings/standards/specification sheets.

iii) Check that motors turn freely by hand. iv) Remove, clean & replace if necessary, drain plugs of all motors. v) Check connections to all equipment for tightness. vi) Check correctness of cabling and its terminations. vii) Check phasing, polarity. viii) Check all electrical & mechanical interlocks & other equipment for safety and to

ascertain that those are functioning as per intention and accomplish their purposes.

ix) Check all plug in contacts for alignment and grip. x) Check all contactors for free manual operation xi) Remove all blocking devices installed for shipment. xii) Check all the coils for their continuity & proper voltage. xiii) Check that the fuses are correctly rated & installed are clean undamaged &fit

for operation. xiv) Check, that all disconnect switches are clean, undamaged & operate properly.

Ensure that all contacts are tight/ joints, linkages & contacts properly lubricated (where applicable). Check interlocks and auxiliary devices and also the operation of the circuit breakers with the protection relay circuit connected



xv) Vacuum clean equipment before energizing.

13.03 HT / LT switchgear power distribution boards, distribution fuse boards, plug and sockets, switch fuse and like equipment

All interconnected wiring shall be checked thoroughly for correct connections with the wiring and schematic drawings of the manufacturer and the drawings supplied by the owner before energizing. All cable / bus bar connections shall also be thoroughly inspected & checked for corrections, foreign materials, tightness etc., Before energizing the equipment, all labeling shall be checked against Drgs All components within the main equipment shall be tested for proper performance & correct operation before commissioning the equipment. Continuity and insulation tests shall be conducted. Switchgear/ MCC rated 415 volts shall be tested with a 1000 volts megger. Auxiliary wiring rated less than 415 volts shall be tested with 500 volts megger. Equipment giving insulation resistance readings of less than 10 mega Ohms shall not be energized. Necessary steps shall be taken for improving the I.R value. All protective relays shall be tested at sufficient points to establish their proper functioning in accordance with the manufacturer's specification.

13.04 AC MOTORS

1. IR test of stator and rotor windings 2. Heating of both windings with heating curve (only for HT motors) 3. Ensure that checking / testing of associated switchboard, cables, relays / meter

interlocking as mentioned in relevant chapters are completed. 4. Check tightness of cable connection 5. Winding resistance measurement of stator and rotor. 6. Checking continuity of winding 7. Check tightness of earth connections 8. Check space heaters and carryout heating of winding (if required) 9. Check direction of rotation in de-coupled condition during kick-start 10. Measure no load current for all phases 11. Check for temperature rise of body in no load and on load conditions 12. Check for tripping of motor from local / remote switches and from electrical /

technological protection including differential protection 13. Checking of vibration



14. Checking of noise level during load running, 15. Measurement of stator and bearing temperatures (if applicable) for every Half an

hour interval till saturation comes 16. Checking tightness of foundation bolts 17. Check operation of speed switch (if there) 18. Check continuity of temperature detectors 19. Check alignment, paralleling of shafts, level of lubricating oil etc. as per

manufacturer's manual 20. Check contact of slip ring brush and measure brush pressure 21. For CACW drive check cooling water and system piping, availability of pressure,

cleaning and pressure testing of pipelines etc. 22. Check for polarization index of stator winding. R10 / R1 by motorised megger (The

value should not be less than 1.5). 23. Dielectric test (only for HT motors)

13.05 PRE-COMMISSIONING TESTS

All pre-commissioning tests at site on all the equipment/items shall be carried out as per relevant standards and as directed by the owner/ engineer. High voltage tests and primary and secondary injection tests on all components/ equipment shall form part of pre-commissioning tests. All cables, heating cable units, immersion type heaters, correction type unit heaters and metallic conduits shall be tested to ensure electrical continuity. Circuit breakers, contactors, relays, remote devices and other electrical operation equipment shall be functionally tested. Relays, thermisters, photo-cells and other equipment requiring operational setting shall be set and checked.

13.06 OPERATIONAL TESTING

Upon completion of the electrical installation & at such time as the owner/ engineer may direct, the contractor shall conduct apparatus and system operating tests for approval and acceptance purposes. All apparatus control schemes, interlocking safety & protective devices etc., shall be demonstrated to operate and function in accordance with the requirements of this specification. All malfunctions & improper operations disclosed through these tests, shall be corrected to the satisfaction of the owner/engineer. All necessary corrections to the contractor-supplied equipment shall be at contractor's expense. The contractor shall provide all electrical skill & labour required during the course of this operational testing.

13.07 INSULATION RESISTANCE TEST FOR LIGHTING INSTALLATION



The insulation resistance shall be measured by applying 500 V DC between earth and the whole system of conductor or any section thereof (with all fuses in place, all switches closed and all lamps in position) by a megger of suitable range. The insulation resistance of the installation shall be not less than 50.0 meg ohms divided by the number of outlets on the circuit except that it need not exceed 1 meg ohm for the whole installation. The insulation resistance shall also be measured between all conductors connected to one phase conductor of the supply and all the conductors connected to the neutrals or other phase conductors of the supply with all lamps in position and switch off and its value shall be not less than that specified above.

13.08 TESTING OF POLARITY OF NON-LINKED SINGLE POLE SWITCHES

In a two wire installation, test shall be made at each point to verify that cutouts and all non-linked single pole switches have been fitted in the same conductor throughout and such conductor shall be labeled or marked for connection to the phase conductor only and not on the neutral or earthed conductor. In a three wire or a four wire installation a test shall be made to verify that every non-linked single pole switch or cutout is fitted in a conductor which is labeled or marked for connection to the phase conductors of the supply. Acceptance of the electrical contractor's work described herein is contingent upon the successful testing of all electrical apparatus, systems and associated wiring, (testing methods shall be in accordance with procedures readily recognizable by the owner/engineer and the contractor). All tests shall be performed in the presence of the contractor and the owner/ engineer. For all types of visual inspections, checking, pre-commissioning, commissioning tests and acceptance tests, relevant IS for the tests given therein shall be followed in addition to the instructions of engineer/owner for such tests.

13.09 TESTING AND COMMISSIONING OF EARTHING SYSTEM

The contractor shall inspect and test all earthing works carried out by him, including all interconnections between group loops, earthing of electrical rooms and grounding of equipment and ensure that the connections are permanent and that the earthing circuit is continuous. The contractor shall test the buried earth grids supplied by him and others within the zone assigned to him. The contractor shall measure and record earth resistance at various earth connection points. Equipment earthing internal to each equipment such as fourth core earthing in the motor terminal boxes shall be shown to the owner/engineer. Only after checking of such connection by the owner/ engineer, the terminal boxes shall be closed.

Earthing system & connections shall be tested as follows :

a) Resistance of individual earth electrode shall be measured after disconnecting it

from the grid. b) Earthing resistance of the grid shall be measured after connecting all the

electrodes to the grid and generally the test value shall conform to IS code of



practice unless otherwise specified. The earth resistance shall be 2 Ohms for the grids constructed by the Contractor.

The resistance to earth shall be measured at the following :

a) At each earth electrode independently. b) At each earth system provided for structure lightning protection c) Combined earthing system used to earth electrical equipment enclosures, metal

structures etc., 13.10 TESTING AND COMMISSIONING OF CABLING SYSTEM

The contractor shall inspect & test all cabling works carried out by him. All cables shall be tested before and after jointing/ termination as per relevant Indian Standards. Jointing/termination shall be redone, if found unsatisfactory without any extra cost to the owner. For testing, all cables shall be megger tested before jointing. After completion of jointing, all LV cables shall be megger tested. The cable cores should be tested for continuity absence of cross phasing, insulation resistance to earth and insulation resistance between conductors. Before energizing, the insulation resistance of every circuit, circuit cable shall be measured from phase to phase and from phase to ground. Where splices or terminations are required in circuits measure insulation resistance of each length of cable before splicing and/or terminating. Repeat measurements after splices and/or terminations are complete. Measure the insulation resistance of directly buried cable circuits before trenches are back filled. Repeat measurement after back filling. DC high voltage test shall be made after installation of the following - a) All 1100 volts grade cables in which straight through joints have been made. b) All cables above 1100 V grade. For record purposes test data shall include the measured values of leakage current. The DC high voltage test shall be performed as detailed below : Cable shall be installed in final position with all the straight through joints complete. Termination shall be kept unfinished so that motors switchgear, transformer etc., are not subjected to test voltage. The test voltage and duration shall be as per relevant codes and practice of Bureau of Indian Standards. The result of all the tests conducted at site shall be furnished in a tabulated form given below, to the purchaser for their approval. All tests shall be performed with genuine instruments. The Bidder shall, therefore, submit a list of all such instruments proposed to be used for testing the installation.

13.11 COMPLETION CERTIFICATE FOR TESTING & REQUEST FOR COMMISSIONING



I/We certify that the installation detailed below has been installed by me/us and tested and that to the best of my/our knowledge and belief, it complied with I.E Rules, 1956, as well as Technical Specifications for Electrical Works. All pre- commissioning checks / tests have been completed and test certificates are enclosed. Approval from Statutory authority has also been obtained and is enclosed. Now we request for regular commissioning clearance.

Electrical installation at : .....................

Voltage and system of supply : ....................

I Particulars of instruments used

1. Insulation tester Make ..................... Type ..................... Sl. No ..................... 2. Earth tester Make ..................... Type ..................... Sl. No. ..................... 3. Any other instrument Make ..................... Type ..................... Sl. No. .....................

II. Particulars of works

A. Equipment details Sl. No.

Equipment Description Rating Remarks (Enclose site test certificate)

1.

2.

3.

4.

5.

B. Internal electrical installation No.



System of wiring Total i) Light point

ii) Fan point iii) Plug point a) 3 pin 5 Amps. b) 3 pin 15 Amps. C. Cables a) Total length of under- : .................... ground cable and its size b) No. of joints : ..........end joints ........tee joints .......straight-through joints

D. Earthing a) Description of earth electrode b) No. of earth electrode c) Size of main earthing lead III. Test result a) Insulation resistance

i) Insulation resistance of the whole system of conductors to earth ........Meg-ohms.

ii) Insulation resistance between the phase conductor and neutral Between phase R & N - Meg-ohms Between phase Y & N - Meg-ohms Between phase B & N - Meg-ohms iii) Insulation resistance between phase-conductors in case of three phase supply Between phase R & Y - Meg-ohms Between phase Y & B - Meg-ohms Between phase B & R - Meg-ohms b) Polarity test Polarity of all single pole branch switches and cutouts



i) Cutout ii) Switch No.1 No.2 c) Earth continuity tests Maximum resistance between any point in the earth continuity conductor including metal conduits and main earthing lead ........................ ohms. d) Earth - Electrode Resistance No.1 ......................... ohms No.2 ......................... ohms No.3 ......................... ohms No.4 ......................... ohms

e) Cable testing i) Before laying Date of test ........

Sl. No.

From .......

Size in sq. mm

Voltage grade Length Insulation resistance in Meg-ohms At the time of issue During laying & before

covering

Between RY ...... RY .... YB ...... YB .... BR ...... BR ...... Between RN ...... RN ..... YN ...... YN .... BN ...... BN ......

Between RE ...... RE ......

YE ...... YE ...... BE ...... BE ...... NE ...... NE ......

------------------------------------------------------- ii) Before commissioning a) Whether high voltage test conducted YES/NO b) If conducted, system of supply................ test voltage at ........... KV .............for ........ minutes, Result of test : Satisfactory/unsatisfactory. c) If not conducted, Voltage of megger used :



Earth temperature : Result of megger testing : Between R & Y : Y & B : B & R : Between R & N : Y & N : B & N : Between R & E : Between Y & E : Between B & E : SIGNATURE OF SUPERVISOR SIGNATURE OF CONTRACTOR SUPERVISOR'S LICENCE NO. CONTRACTOR'S LICENCE NO. NAME & ADDRESS NAME & ADDRESS

The system and equipment as above has been checked / verified along with test documents and Statutory Authority‟s clearance. The system / equipment may be commissioned (ENGINEER) (ENGINEER) HPCL 14.00 DATA,DRAWINGS AND DOCUMENTS

14.02 Drawings to be submitted for approval on order Placement

a. Design and drawing of Lighting and earthing system b. GA drawing and data sheet for cables, DBs and other supply items c. List of vendors for various supply items chosen from the approved makes. d. Copy of Unpriced PO placed on sub vendors for supply items

14.03 Drawings / documents to be submitted for information during execution of

project

a)Erection/Installation Manuals

b)Manufacturing Drawings

c)Factory test reports& & TPI report wherever applicable.

d)Technical literatures/ Product data /catalogues.



e)Cable layout drawing/Cable Schedule.

14.04 Drawings Documents to be submitted before final Acceptance.

a) As Built Drawings for Entire Plant Electrics.

b) Operation and Maintenance Manuals

c) Detailed Bill of Quantity for all Equipment.

d) As Built Cable routing drawings / Cable Schedules

e) Testing and commissioning Reports.

f) Statutory Approval Documents.

15.00 PREFFERED MAKES OF EQUIPMENT

Makes of the equipment offered shall be generally limited to the Following only. In case, the approved vendor is not able to supply the materials, then alternate vendor may be considered during detailed engineering, subject to meeting the specification.

Technical literature and publications of items to be offered by the Bidder shall be forwarded prior to procurement. Makes of all the equipment and accessories must be clearly mentioned against each item.

In case rating, type, make and other details of all these items are not Mentioned by the Bidder, their quotation is likely to be treated as incomplete. The purchaser reserves the right, to select an item of any make, based on Standardization needs, in case he has not \indicated make specifically or Has Indicated, more than one make. The Bidder shall ensure that equipment and components are from Indigenous sources to the maximum possible. Imported equipment/components shall be resorted to only in case of Non availability of equipment/ component from Indigenous sources and with prior approval of owner/Consultant.

LIST OF PREFERRED MAKES

1. BATTERY CHARGER : CHABBI ELECTRICALS / SABNIFE / AUTOMATIC ELECTRIC / EXIDE

2. HT , LT AND CONTROL CABLES : NICCO / RPG /UNIVERSAL / TORRENT / INDIAN CABLE CO.,/ CABLE CORPORATION OF INDIA / FORT GLOSTER INDUSTRIES / ASIAN CABLES / POLYCAB/HAVELL

3. LIGHTING FIXTURES : PHILIPS / CGL / BAJAJ / CANARA 4. MCBs : LEGRAND/GE POWER/INDO ASEAN/HAVELS

5. 11 KV TERMINATION KIT & STRAIGHT THROUGH JOINTS

: CCI/RAYCHEM/MAHINDRA ENGG.

6. PROTECTIVE RELAYS, AUXILIARY RELAYS & SEMAPHORES

: ALSTOM / ABB / GE-MULTILIN / EASUN REY ROLLE / SEG / ENGLISH ELECTRIC

7. INSTRUMENTTRANSFORMERS Current Transformers

: AUTOMATIC ELECTRIC / KAPPA / JYOTHI / PRAGATHI / INSTRANS / KALPA

8. INDICATING/RECORDING Meters : AUTOMATIC ELECTRIC / MECO / IMP / RISHAB / UNIVERSAL / SIMCO / BHEL



9. CONTROL SELECTOR SWITCHES PUSH BUTTONS

: KAYCEE / ALSTOM / SALZER / SIEMENS / EASUN REY ROLLE / L & T / EE / BCH / VAISHNO

10. AUXILIARY CONTACTORS Timers/SWITCH FUSE UNITS

: SIEMENS / L&T / TC / ABB / GE POWER CONTROL / BCH / TELEMECHANIQUE

11. CONTROL CONTACTORS HRC FUSES

: GEC – ALSTOM / BCH / L&T / SIEMENS

12. CABLE TRAY : PATNY & CO / TECHNOFAB / INDIANA / SADHANA

13. CABLE GLANDS : SMI / COMET / MAYUR / JAINSON 14. CABLE LUGS / SOCKETS /

FERRULES : DOWELLS / CONNECT WEL / ISMAL

15. ELCB/MCB : GEC ALSTHOM / LEGRAND / HAVELS / S&S / Indo Asean

16. MCCB, ACB : ABB / L&T / CGL / GE POWER

17. G. I. CONDUITS : TATA / JINDAL / APOLLO / ZENITH 18. MS CONDUITS : NICCO / BEC / APOLLO

19. EXHAUST FANS : KHAITAN / USHA / GEC / BAJAJ / CROMPTON

20. CELING FANS : KHAITAN / USHA / GEC / BAJAJ / CROMPTON

21. COPPER WIRES (lighting)

: FINOLEX / OMEGA / FINECORE / WINCAB / POLYCAB / RAVICAB / HAVELS

22. PVC CONDUITS AND PVC CASING „N‟ CAPPING

: AVON PLAST / MODI / UNIVERSAL PRECISION

23. DECORATIVE SWITCHES & SOCKETS

: ANCHOR / ELLORA / KINJAL / NORTHWEST / LISHA

24 DIGITAL METERS : L & T / SEM / CONZERV

25 POWER PLUG & SOCKET (INDUSTRIAL TYPE)

CROMPTON GREAVES / BEST& CROMPTON / EE / GEC / BCH

26 INDICATING LAMPS L& T / BCH / VAISHNO / SIEMENS / ESSEN 27 SOLID STATE ANNUNCIATOR L&T / PROCON / INSTALLARM / MINILEC

28 BATTERIES EXIDE / STANDARD / AMCO / AMAR RAJA 29 Street Lighting Poles Bajaj / Rajan / KL Industries / Shubham

30 High Mast Philips / CGL / BAJAJ 31 SFU Havels / EE / Greaves / Bharita / L & T 32 ESD Biblek or equivalent

16.00 APPLICABLE STANDARDS & CODES

All applicable Indian and IEC codes, regulations and standards shall govern the work hereunder. In the event of the requirements of the specification, exceed the requirements of the, corresponding codes, regulations or standards, the specification shall govern. Where there are more than one applicable codes or standards for any item, the most stringent will apply. All parts issued against a standard/code shall be referred to wherever specific Part No is or not given. Equipment covered by this specification shall conform to the latest editions and revisions of all relevant applicable codes, and standards in addition to the ones listed below: Latest revision of all applicable codes, regulations and standards shall govern the design, manufacture, installation, testing & commissioning of individual equipment and total installation even when the requirement of the specification is less stringent than the codes, regulations & standards. In the event of conflict between specification & codes, the most stringent shall govern. In the event of conflict between codes, regulations and standards referred to in the specification, the owner's/consultant's decision is final and binding.



Wherever IS are not available, relevant IEC standards are to be followed: Equipment covered by this specification shall conform to the latest editions and revisions of all relevant applicable codes, and standards in addition to the ones listed below: It may Please, be noted that the above list is not exhaustive.

1 BS 4999 (Parts 1,4,31,32,33,60)

: General requirement of rotating Electrical machines

2 IEC 34-1 Part – 1 : Rotating Electrical Machines Rating and Performance

3 IEC 34-2 Part – 2 : Methods for determining losses and efficiency of rotating machine from tests

4 IEC 34-2 Part - 3

: Methods for determining losses and efficiency of Rotating machine from tests

5 IS 0325-1996 : 3-phase induction motors.

6 IS 0900 –1965

: Code of practice for induction motors installation and maintenance.

7 IS 0005-1994 : Colours for ready mixed paints and enamel

8 IS 2026 - 1977 Parts 1,2 & 4 1977 Part – 3 1981

: Power transformers

9 IS 0335-1993 : New insulating oils

10 IS 0374 – 1979 : Electric Ceiling type Fans & Regulators

11 IS 0396 Part I to V Reaffirmed 1992

: Aluminum conductors for over-head transmission purpose.

12 IS 2121 Part 1,2 1981 Part 3-1992 Part 4-1991

: Conductors and earth wire accessories for overhead power lines.

13 IS 0731-1971

: Specification for porcelain insulator for overhead power lines with a nominal voltage greater than 1000V.

14 IS 1651-1991 : Stationary cells and batteries, lead acid type (with tubular positive plates)

15. IS 1652-1991

: Stationary cells and batteries, lead acid type (with plante‟ positive plates)

16. IS 0732 – 1989, IS – 3854-1988/1990

: Code of practice Electrical wiring installations

17 IS 1239 Part-1 1190 /Part-2 1992

: Mild Steel tubes, tubulars and other wrought steel fittings.

18 IS 0722 Part 1 to 9 : Alternating current Electricity meters

19 IS 1248-1993

: Direct acting analogue electrical measuring Instruments and their Accessories

20 IS 2419-1979 Re-affirmed 1991

: Dimensions for panel mounted indicating and recording electrical instruments

21. IS 1255 – 1983 Reaffirmed 1991

: Code of practice for installation & maintenance of power cables up to 33 kV rating

22 IS 694 – 1990 : PVC insulated electric cables for working voltages upto and including 1100 Volts

23 IS 1554 Part 1&2 1988 : PVC Insulated (Heavy duty)electric cables for working voltages upto and including 11000 Volts

24 IS 1271-1985 Re affirmed 1990

: Thermal evaluation and classification of Electrical Insulation

25 IS 3691 Part 1 to 5 1976, : Recommended current ratings of cables.



1986

26 IS 1777–1978 Reaffirmed 1990

: Industrial luminaires with metal reflectors

27 IS 1913-1978 Re-affirmed 1992

: General & safety requirement of luminaires

28 DIN EN 50014 : Explosion proof light fittings50019 for Group II

C areas (German Specification)

29 IS 1293 – 1988 Reaffirmed 1990

: Plug & socket outlets for rated voltages upto and including 250 Volts and rated currents upto and including 16 Amperes

30. IS 2032 : Graphical symbols used in electrical technology

31. IS 2099-1986

: Bushing for alternating voltages above 1000V.

32 IS 2147-1962 Reaffirmed 1990

: Degrees of protection provided by enclosures for LV switchgear & control gear.

33 IS 2148-1981 Re-affirmed 1993

: Specification for Flame proof, enclosure of electrical apparatus.

34 IS 2206

: Specification for Flame proof, electrical light fittings.

35 IS 2418-1977 parts 1-4 Reaffirmed 1990-1993

: Tubular flourescent lamps for general lighting service, requirements & tests

36 IS 2448-1963 Re-affirmed 1995

: Adhesive insulating tapes for electrical Purposes

37 IS 2544-1973 Re-affirmed 1991

: Specification for porcelain post insulators for systems with nominal Voltage greater than 1000V. warning symbols

38 IS 2551-1982 Re-affirmed 1990 IS 8923-1978

: Danger boards, warning symbols

39 IS 2705 1992 Parts 1 to 4

: Current transformers.

40 IS 2721-1979 Re-affirmed 1991

: Galvanized steel chain link Fencing

41 IS 3043-1987 Re-affirmed 1991

: Code of practice for earthing

42 IS 3070-Part-1 1985 re-affirmed 1990, Part –3 1993

: Lightning arresters for alternating current systems

43 IS 3156-1992 Parts 1 to 4

: Voltage transformers.

44 IS 3231 : Electrical relays for power system protection.

45 IS 3427-1997 : Metal enclosed switch gear and control gear for voltage above 1000V but not exceeding 52 kV.

46 IS 3480-1966 Re-affirmed 1990

: Flexible steel conduits for electrical Wiring

47 IS 3637-1966 Re-affirmed 1991

: Gas operated relays

48 IS 3638-1966 Re-affirmed 1991

: Application guide for gas operated relays.

49 IS 3639-1966 Re-affirmed 1991

: Fittings and accessories for Power transformers

50 IS 3646 Part-1 1992 Parts 2 & 3 1966 Re-affirmed 1992

: Code of practice for Interior Illumination



51 IS 3722-1983 Re-affirmed 1991

: Letter symbols and signs used in electrical technology

52 IS 3842 Part I to XII

: Application guide for electrical relays for AC systems.

53 IS 4004-1985 Re-affirmed 1990

: Application guide for non-linear resistor type surge arrester for A.C systems

54 IS 4160 – 1967 Re-affirmed 1990

: Interlocking switch socket outlet

55 IS 4483-1968 Re-affirmed 1991

: Preferred Panel cut out dimension for electrical relays.

56 IS 4691-1985 Re-affirmed 1991

: Degrees of protection provided by Enclosures for rotating electrical machines.

57 IS 4722-1992 : Rotating electrical Machines

58 IS 4728-1975 : Terminal markings for rotating electrical machines.

59 IS 4770-1968 : Hand gloves

60 IS 5216 - 1982 Re-affirmed 1990

: Guid for safety procedures & practices in Electrical work

61 IS 5424-1969 : Rubber mats for electrical purposes

62 IS 5571 – 1979 Re-affirmed 1991

: Guide for Selection of electrical equipment for hazardous area.

63 IS 5578-1984 Re-affirmed 1991

: Guide for marking of insulated conductors

64 IS 5613 Parts 1 to 3 1985/1989

: Code of practice for Design installation and maintenance of over head power lines

65 IS 5621-1980

: Hollow insulators for use in electrical equipment

66 IS 5831-1984 Re-affirmed 1991

: PVC insulation & sheath for electric cables

67 IS 6071-1986 Re-affirmed 1992

: Synthetic separators for lead acid batteries.

68 IS 6262-1971 Re-affirmed 1991

: Method of test for power factor & dielectric constant of electrical insulating liquids.

69 IS 6304-1992

: Stationary batteries lead acid type with pasted positive plates.

70 IS 6600-1972 Re-affirmed 1991

: Guide for loading of oil immersed transformers.

71 IS 6665 – 1972 Re-affirmed 1990

: Industrial lighting code of practice

72 IS 6792-1992

: Method of determination of Electrical strength of insulating oils

73 IS 6875-1980 Re-affirmed 1982

: Control switches for voltage upto including 1000 V

74

IS 7098 - 1983 Part 1

: Cross linked polyethylene insulated PVC sheathed cables for working Voltages upto 1100 Volts

75 IS 7098-1981 Part 2 Re-affirmed 1988

: Cross linked polyethylene insulated PVC sheathed cables for working Voltages from 3.3 kV upto 33 Kv

76

IS 7132-1973 Re-affirmed 1991

: Guide for testing synchronous machine

77 IS 7689 –1989

: Guide for control of undesirable static electricity.

78 IS 7752 Part I-1975 Re-affirmed 1991

: Guide for improvement of power factor at consumer‟s installation.

79 IS 8061-1976 : Code of practice Design, installation &



Re-affirmed 1991 maintenance of service lines up to and including 650V.

80 IS 8084-1976 Re-affirmed 1992

: Interconnecting busbars for AC voltage above 1 kV up to & including 36 kV

81 IS 8130-1984 Re-affirmed 1991

: Conductors for insulated electric cables & flexible cords.

82 IS 8197-1976 Re-affirmed 1987

: Terminal markings for, electrical measuring instruments.

83 IS 8603 Parts 1 to 3 –1977 Re-affirmed 1991

: Dimensions for porcelain transformer bushings for use in heavily polluted atmosphere.

84 IS 8623-1993(Part1 to 3) Re-affirmed 1991 (IEC 439-1973)

: Low voltage switch gear & control gear assemblies

85 IS 8686-1977 Re-affirmed 1991

: Static protective relays.

86 IS 8923 – 1978 Re-affirmed 1997

: Working symbols for dangerous voltages.

87 IS 9249 part 1 –1979 Re-affirmed 1991 Part 2 – 1982 Re-affirmed 1987

: Safety requirements for indicating and recording electrical measuring Instruments and their accessories.

88 IS 9385 Part I- 1979 : High voltage fuses (current limiting fuse)

89 IS 9511-1980 Re-affirmed 1991

: Earthing knob for neutral conductors.

90 IS 9537 Part-1 1980 Part-2 1981 Part-3 1983 All parts Re-affirmed 1990

: Conduits for electrical installation

91 IS 9676-1980 Re-affirmed 1987

: Reference ambient temperature for electrical equipment.

92 IS 9920 Part-1 1981 Part-2 1982 Part-3 1982 Part-4 1983 All parts Re-affirmed 1992

: Switches and Switch Isolators for voltage above 1000V

93 IS10000 Parts 1 to 12 : Methods of tests for IC engines

94 IS10002-1981 Re-affirmed 1991

: Performance Requirements for constant speed compression Ignition engine for general purposes (above 20 kW).

95 IS10028 Part 1- 1985 Part 2- 1981 Part 3- 1981 All parts Re-affirmed 1991 Part I,II & III selection, installation and maintenance.

: Code of practice for selection installation and maintenance of transformers

96 IS10118-1982 Parts 1 to 4 Re-affirmed 1991

: Code of practice for design, installation and maintenance of switch gear and control gear.

97 IS10810 – 1984 Parts 1 to 63

: Method of tests of cables



Re-affirmed 1991-98

98 IS10918-1984 Re-affirmed 1990

: Vented type Nickel-Cadmium batteries.

99 IS12021-1987

: Control transformers for switchgear & control gear for voltages not exceeding 1000V

100 IS13118-1991 : High voltage Air circuit breakers

101 IS13703 –1993 Parts 1 to 4 Re-affirmed 1998

: Low voltage fuses for voltage not Exceeding 1000VAC or 1500VDC

102 IS13947-1993 Parts 1 to 5

: Specification for low voltage switchgear and control gear.

103 OISD Standard Latest Edition Oct‟2010

17.00 QUALITY ASSURANCE, INSPECTION & TESTING 17.01 GENERAL REQUIREMENT OF QUALITY ASSURANCE

All materials, components and equipment covered under the technical specification for this Project shall be procured, manufactured, tested, erected and commissioned as per a comprehensive Quality Assurance Programme. It shall be the primary responsibility of the contractor to draw up and implement such a programme which shall be duly approved by the Owner / Consultant/their authorised Inspection Agency.

The detailed Quality Assurance Plan (QAP) for manufacturing and testing of equipment shall be prepared by the contractor and submitted for approval by the Owner/their aurhorised Inspection Agency.

17.02 Inspection and Testing

17.02.01 The equipment shall be inspected by the Owner and / or their Inspection Agency at the

manufacturer‟s works prior to despatch. The equipment will be inspected as per the tests pre-identified in the approved QAP to ensure conformity of the same with relevant approved drawings, data sheets, technical specification, National/International Standard.

17.02.02 The contractor shall finalise the QAP within the stipulated schedule mentioned in the Purchase Order and the QAP shall be submitted in four sets (Blank QAP formats enclosed shall be adopted). In case of any sub-contracting, the QAP shall be prepared by the contractor in consultation with his sub-contractor to avoid any lapse in quality and disputes and misunderstanding.

17.02.03 The contractor shall provide full and free access of the Inspection Agency to the

manufacturer‟s works to carry out any stage inspection to ensure the quality of the equipment being manufactured.

17.02.04 Only on readiness of the equipment and approval of all relevant drawings & QAP, the

contractor shall give “Inspection Call” (Blank format enclosed shall be adopted) to the Owner & the Inspection Agency with a clear notice of 10 days for inspection. The Inspection Call shall be accompanied by the manufacturer‟s internal inspection report, test certificates, purchase order, sub-purchase order, technical specification, approved QAP and approved drawings / data sheets. The Inspection Call without above documents shall be ignored. In case of any approved sub-contracting, only the main contractor shall give the Inspection Call enclosing internal inspection/ test reports of the sub-contractor duly verified by the main contractor. In case the equipment offered for inspection is found not ready, all the cost of the visit of the Inspection Agency shall be borne by the contractor.



17.02.05 The contractor shall furnish all relevant documents and test certificates as required by the Inspection Agency during inspection. Materials shall be tested only in recognised Test House/Laboratory.

17.02.06 The contractor shall delegate a representative/ coordinator to coordinate with the

Inspection Agency on all inspection matters. 17.02.07 No equipment shall be offered for inspection in the painted condition unless otherwise

agreed to the Owner. 17.02.08 The contractor shall ensure that the equipment and materials once rejected by the

Inspection Agency are not reused in the manufacture of plant and equipment. Where parts rejected by the inspection Agency have been rectified as per pre-agreed procedure, such parts shall be segregated for separate inspection and approval before being used in the work.

17.02.09 - 11 Deleted 17.02.12 The contractor shall provide all required instruments, tools, necessary testing and

inspection facilities free of cost to carry out the inspection. These instruments and testing machines shall be calibrated by an agency of National/ International recognition and the calibration shall be valid during inspection period.

17.02.13 The inspection Agency shall have the right to demand for re-testing of any material re-

calibration of the instrument and testing machine & the charges for the above will be borne by the contractor.

17.02.14 Performance tests of any particular equipment which cannot be conducted /

demonstrated either partially or wholly at the manufacturer‟s works, shall be conducted after erection at site in the presence of Owner and their Inspection Agency. In all the cases, prior approval of the Owner shall be obtained.

17.02.15 No equipment shall be dispatched before inspection and issue of Inspection Certificate

and dispatch clearance from the Owner / Inspection Agency. 17.02.16 In case of waiver category items, the same shall be pre-identified in the QAP itself. For

such items, the contractor shall furnish necessary certificate, test reports, etc., as agreed upon and indicated in the QAP. For these items also the contractor shall obtain “Inspection Waiver Certificate” and dispatch clearance from the Owner Inspection Agency before effecting dispatch of equipment.

17.02.17 The issue of Inspection Certificate / Waiver Certificate for any equipment or

component thereof does not absolve the contractor from his contractual obligations towards subsequent satisfactory performance of the equipment at site. Should any equipment be found defective, In whole or part thereof after receipt at site or during erection/ commissioning and testing shall be made good by the contractor free of cost.

17.02.18 Owner shall be given minimum four weeks advance notice for witnessing the final testing. The minimum testing / inspection requirements for all components/equipment shall conform to the requirements stipulated in applicable codes and standards. Test certificates including test records and performance curves etc. shall be furnished by the Contractor.

17.03 TESTING

Contractor shall provide test certificates for Type and Routine tests carried out on the equipment / boards etc. as specified in the relevant standards and tests as specifically mentioned in this TS.



INSPECTION FORMAT

PAGE:1 OF 1

REVISION - 1

DATE:

OWNER

CONTRACTOR‟S ORDER NO. & DATE

PLACE OF INSPECTION WITH ADDRESS PHONE NO. / FAX NO.

NAME & DESIGNATION OF CONTACT PERSON WITH PHONE NO.

QAP & DRG NO WITH REVISION

QAP & DRAWING APPR STATUS (A/AAN/INF)

QUANTITY (NO./T/M)

TOTAL ORDERED

TOTAL ACCEPTED

REF NO & DATE DESCRIPTION REFERENCE & DATE

(FOR CONTRACTOR / SUB-CONTRACTOR)



18.00 INFORMATION TO BE SUBMITTED BY SUCCESSFUL BIDDER

18.01 Drawing and information to be submitted within one month from the date of placement of

order for approval of the Owner / before manufacture / procurement of equipment and components:

Outline & general arrangement drawings incorporating the principal dimensions of all equipment covered under Part-A of price schedule.

Control & interlocking scheme with write up

Complete coordinated layout drawing indicating types of underground communication such as electrical cable ducts.

Earthing layout drgs

Lightning protection drgs

Illumination layout, bill of materials, single line diagrams of all lighting boards

For main equipment.

GA drawing of above boards & distribution trafos indicating front view, dimensional details.

Cable routing drgs with various section as indicative locations and arrangement of trenches. However the actual works as will be actually executed by contractor as per site conditions and as per owner or site engineer‟s instructions will be indicated in contractor drgs.

Cable schedules and interconnections drawings.

Earthing layout drgs

Lightning protection drgs.

Lighting layout drgs. Final drgs showing actual layout and wiring arrangement.

Control Scheme drawings of various electrical equipment vendor whose equipment are included in free issue items.

Interconnection and external connection diagram and cable schedule

Installation, operation and maintenance manual for reference.

Termination diagrams.

Layout drawing for switchgear rooms, cable routing and earthing.

Data sheet for HT / LT Cables and other cable and termination kits.

List of 2 years maintenance spares, commissioning spares.

18.02 Documents to be submitted along with supply of equipment.

i) Material test certificates. ii) Reports on shop tests and test certificates and certified test characteristics. ii) The instruction manual shall furnish the following information in practical and

comprehensive manner prepared for use by operating and / or maintenance personnel.

Instructions for initial installation.

Instructions for operation, maintenance and repair.

Recommended inspection points and period of inspection.



Ordering information for all replaceable parts etc.,

iii) The instruction shall be arranged in a logical and orderly sequence. A general description of the equipment including significant technical characteristics shall be included to familiarize operating and maintenance personnel with the equipment.

iv) Necessary drawings and other illustrations shall be included or appropriate drawings shall be bound in the manual. Test, adjustment and calibration information, as appropriate, shall be included and shall be identified to the specific equipment, safety and other warning notices and installation, maintenance and operating cautions shall be emphasized.

v) A parts list shall be included showing part nomenclature manufacturer‟s part No. and / or other information necessary for accurate identification and ordering of replaceable parts.

vi) The instruction manuals shall be bound in durable folder. vii) If a standard manual is furnished covering more than the specific equipment

purchase, the applicable model (or other identification) number, parts number and other information for the specific equipment purchased shall be clearly identified.

viii) The instruction manuals shall include list of all special tools and tackles furnished with complete drawings and instructions for use of such tools and tackles.

18.03 LIST OF TENDER DRAWINGS The following drawings are enclosed with this tender.

Sl. No. Description

1. Electrical Distribution Single line diagram for various Boards to be supplied by OWNER.

2. Layout Plan

3 Cable route/ crossing drawing

4 Lighting poles, Earth electrode, and other misc drawings



PART-II

PLANT COMMUNICATION SYSTEM



TECHNICAL SPECIFICATION FOR COMMUNICATION SYSTEM

TABLE OF CONTENTS

Sl.No.

DESCRIPTION

01 GENERAL & SCOPE OF WORK

02 GENERAL CONDITIONS

03 MAKES OF EQUIPMENT AND INTERCHANGEABILITY

04 TRAINING

05 DESCRIPTION OF EPABX SYSTEM

06 DESCRIPTION OF PLANT COMMUNICATION SYSTEM AND COMPONENTS

07 VHF COMMUNICATION SYSTEM

08 DRAWINGS AND DOCUMENTS

09 INTERCONNECTION CABLES AND WIRES

10 Test and Inspection

11 Two years OPERATIONAL spares

12 LIST OF PREFFERED MAKES

13 Location of facilities FOR BIHTA DEPOT

1.0 SCOPE OF WORK:

Following shall be the scope of work:



A) SUPPLY: The scope of work of the tenderer includes the complete design, manufacture,

supply, testing, packing, transportation to site, storage, handling of (a) EPABX (b)

Plant communication and (c) VHF communication Systems and their associated

equipment, Furniture/ Racks required for equipment, Power supply and Distribution

equipment, Cables, GI Conduits and Installation/ Erection accessories required on a

turnkey basis.

B) ERECTION & COMMISSIONING: Transportation to the place of erection from store,

erection, testing and commissioning of (a) EPABX (b) Plant communication and (c)

VHF communication Systems

C) POWER SUPPLY: Supply, Laying/ Erection and Termination of all power supply

Cables and Distribution equipment for EPABX, Plant Communication System and VHF

Charging units shall be in the scope of work of the tenderer. For supply to all these

equipment, a feeder of suitable rating shall be provided by the client at a single location

i.e. at the DB of UPS. Beyond this point all activities related to distribution and

termination shall be in tenderer scope.

2.00 GENERAL CONDITIONS:

2.01 Components/ parts of the equipment/ system shall be suitable for service in an explosion prone area, wherever specified.

2.02 The digital switch based exchange shall be complete in all respect and any device not

included in the specification but essential for proper operation of the system shall be deemed

to be within the scope of the tenderer whether specifically mentioned in this specification or

not.

2.03 The exchange(s) shall be TEC approved and confirmation from the exchange manufacturer/ supplier shall be furnished to this respect during procurement.

2.04 All nameplates, drawings, operating and maintenance instructions etc. shall be in

English language. The dimensions, weights shall be in metric units.

2.05 All equipment, materials and components supplied shall be newly manufactured and without

loose or temporary cabling. Wired options used in the system hardware shall be minimum.

2.06 All components shall be rated for continuous operation. The circuits also must be designed

so as to prevent damage to other modules within the equipment or to other equipment under

any conditions of operation or any condition of fault.



2.07 All power supply shall be through MCBs with suitable marking for the different ratings to

enable easy identification and replacements.

2.08 The equipment shall also conform to the latest Indian Electricity Rules regarding

safety, grounding and other essential provisions specified therein for installation and operation of the system.

2.09 Any work not conforming to the execution drawings, Specification or codes shall be

rejected forthwith and the contractor shall carryout the rectification at his own cost.

2.10 The EPABX and Plant Communication Systems equipment shall be suitable for

operating from 240 V +/- 10 %, single phase, 50 Hz ± 5 % ac power supply. If the equipment is required to operate at any other voltage level, necessary transformation / conversion and distribution of required power supply shall be in tenderer‟s scope.

2.11 All terminal blocks shall have at least 25% spare terminals (minimum being 2).

2.12 All bought out items like cables and other accessories shall be supplied by the

successful tenderer strictly as per the purchaser's preferred list, given in this spec.

2.13 Point/ clause-wise compliance of the specification shall be furnished by the tenderer along with his offer

2.14 No separate payment will be made for supply of any material required for installation of

equipment like mounting structures etc., As such the cost of the installation material required shall be included along with respective equipment.

2.15 It is the responsibility of the tenderer to assess the type and magnitude of work

involved based on information furnished by the Owner/ Consultant in this document and general field conditions.

2.16 Tenderer shall clearly indicate deviation, if any, from this specification, in the offer.

2.17 Explosion-proof equipment wherever specified shall be suitable for Zone II, Group II A,

B and made up of die cast aluminium. The unit shall have approval of CMRI and CCOE.

3.00 MAKES OF EQUIPMENT AND INTERCHANGEABILITY:

3.01 Equipment / components offered shall be from the list of preferred makes as given in

this specification.

3.02 Similar equipment and components shall be of same makes.

3.03 Equipment of same type and rating shall be interchangeable. 4.00 TRAINING:

During erection and commissioning of the system the Contractor shall involve the working personnel of customer and train them, free of cost, in all type of hardware and software for safe, and efficient operation and maintenance of the equipment and system. The Number of personnel to be trained shall be at least 3 and the duration and structure of the training shall be mutually discussed and finalised.

5.00 DESCRIPTION OF EPABX SYSTEM:



The description given below is for the main system units/ components and may not cover all. The tenderer shall take responsibility for the completeness of the system and furnish the details of the units not covered here, along with the offer. Main units of the system like Switching unit, MDF, Operator console etc are proposed to be located in the Terminal control room.

5.01 MAIN DISTRIBUTION FRAME (MDF):

It shall serve as a common terminating point of the telephone cables network. The MDF shall be compact and modular with systematic wiring and termination, following a numbering scheme facilitating quick and easy maintenance. Spare capacity shall be provided for terminating additional cables keeping in view the future expansion. Both sides of the MDF shall be complete with protection and safety devices e.g. Protection against short circuit and surge shall be provided through Fuses and GD tubes. The number of terminations towards field side shall be minimum double the number of terminations on exchange side.

MDF shall be wall/ floor mounting type, constructed of min. 2mm thick CRCA sheet with ample no. of Krone modules for trunk and subscriber cable termination. It shall be suitable for both top and bottom cable entries. Punch-out type holes shall be provided at the top and bottom for entry/ exit of various size cables.

5.02 EXCHANGE EQUIPMENT:

The EPABX/ exchange proper shall have following features:

i. Fully digital employing stored program control and PCM/ TDM switching technique. ii. 100% Non blocking iii. ISDN compatible. iv. Configured for minimum 48 extensions expandable to 72 extensions and 6 Trunk

lines.

v. The PSU, CPU, Ringer unit, TDM bus, etc should be integrated within the system and

the system should have indication for faulty modules. The EPABX system should have necessary hardware/ software for facilitating routing of the calls to the VHF handsets and also from VHF handset to other telephones associated with the EPABX.

vi. Switch shall be ISDN ready and shall be able to accept ISDN BRI. vii. System architecture should be built-up with suitable processor to handle traffic of at

least 50,000 BHCA. viii. Generation of required tones like dial, busy, NUT etc. ix. Port cards should have equal access to any free available time slot and should have

equal access time to TDM bus. x. System shall work on 240 V AC power supply with voltage varying between +/- 10%.

There should be a provision to connect a set of battery bank to the system for back up. Drawing the required power from the nearby DB of client‟s UPS shall be in the scope of tenderer. One no. of feeder for the purpose shall be made available at the UPS DB.

xi. Exchange shall support Caller Line Identification for all subscribers and trunks.



xii. System shall include a Digital telephone to carry out maintenance, operations and

programming functions. The same shall work as an operator console also. xiii. System shall have auto restart capability to automatically reload the system software in

case of system power failure and restoration. xiv The system shall provide the minimum facilities as given below -

# Abbreviated dialing.

# Last number redial # Call forwarding. # Caller line ID. # Caller ID for call waiting. # COS programming for subscribers through Operator console. # Boss-secretary feature. # MSN (Multiple subscriber no.) for ISDN lines. # DID / DOD # Call billing # Landing on any subscriber through IVRS

THE OPERATOR CONSOLE SHALL OFFER FOLLOWING MINIMUM FACILITIES: # Visual display of calling and called stations. # Keypad dialling. # Busy override. # Trunk to Trunk, Trunk to Subscriber and Subscriber-to-Subscriber transfer. # Breaking in into busy extension with interruption tone. # External line hold. # Indication of waiting calls.

5.03 EXPLOSION PROOF / PUSH BUTTON TELEPHONE INSTRUMENTS:

i. All telephone instruments shall be desk type, rugged construction suitable for industrial application. These shall be complete with all necessary devices, circuits, and push buttons, ringer bell, flexible coiled cord, plug connector, etc.,

ii. The telephone instruments should be rugged, elegant & electronic push button type

DP / DTMF phones for general use. iii. Explosion proof telephones(in specified locations) shall be suitable for Zone II, Group II

A, B and made up of die cast aluminium, wall or column mounted. Handset shall be



with noise canceling type microphone, suitable coiled cord, press to operate switch, shall have In-built loud ringer. The unit shall have approval of CMRI and CCOE.

iv. Desktop and explosion proof telephones shall have the following features: The features of both telephones shall be as below:

_ Tone / Pulse switchable. _ Ringer Volume control. _ Flash, Mute, Pause, Re- dial facility.

5.04 TELEPHONE JUNCTION BOX:

10/ 20/ 50 Pair, wall mounting, Junction boxes with Krone connectors shall be provided for cable termination on the incoming side and required no. of cables in the outgoing side. Sizes of junction box shall be got approved before execution.

6.00 DESCRIPTION OF PLANT COMMUNICATION SYSTEM AND COMPONENTS:

The plant communication system shall be of Centralised Broadcasting type and shall mainly consist of - a) A central rack consisting of Amplifier stack, Zone switching unit, Cable termination and management system b) Speakers of different types for Indoor and Outdoor applications suiting to the place of installation c) Cable termination boxes for speaker cables at Central rack and Speaker locations For making announcements, all speakers shall be distributed in three to four functional zones namely Tank/ Truck Parking areas, Tank truck filling areas/ Gantry and Non-plant office areas. A central announcement unit with a goose neck microphone shall be provided in the main control room , Security Cabin and In-Charge room for making the announcements. This announcement unit shall also include provision for selection of individual zones/ more than one zone / all zones for making the announcement. The selection of zone(s) shall switch the required Amplifier modules and direct the announcement to speakers in the selected zones. A broad description is given below for the main system units/ components and may not cover all. The tenderer shall take responsibility for the completeness of the system and shall include in his offer all the details of the units not covered here.

6.01 CENTRAL AMPLIFIER RACK:

The unit shall consist of required no. of Line and Power Amplifier modules and terminal blocks for termination of power, signaling and loud speaker cables. Housing for the unit shall be constructed of Powder Coated Anodised Aluminium of 1.6 mm minimum thickness and suitable to accept 19 inch Rack mounts for accommodating Amplifier modules. The unit shall operate from 240V +/- 10%, 50+/-1Hz, Single phase AC. The rack shall contain a music source like a DVD player of reputed make like Philips/ Sony/ LG/ Samsung. A switch shall be provided in the front to switch on the the music source and channelise the music to all the speakers. The capacity of amplifiers shall be adequate to meet the power requirement of the speakers in individual Terminals and shall have at least 25 percent spare capacity to add speakers in future. The speakers shall be preferably connected in parallel to 70/ 100 V line of Amplifiers.



The Amplifier modules will be 19” rack mountable with following specifications:

Power output : Min. 200 W rms rated output. Input channel : Suitable to match the line amplifier used for the central

announcement unit Frequency response: 15 Hz to 15 kHz min. Signal to Noise ratio: Better than 60 Db Controls: Power on, Volume, Tone(Bass and Treble) Speaker output: 4 ohm, 8 ohm, 70 V and 100 V.

6.02 CENTRAL ANNOUNCEMENT CONSOLE:

i. The unit shall be desktop type consisting of Gooseneck Microphone, Line/ Pre

amplifier, Zone selection switches, Power supply and LED Indications ii. All Terminations shall be through Connectors mounted at rear side.

iii. The unit shall be elegent, surface mountable, made of min. 1.6 mm thick powder coated

Anodised Aluminium, working on 240 V, Single phase AC.

iv The microphone assembly shall comprise of microphone, suitable gooseneck desk stand with press - to – talk switch with cable and connectors. The microphone shall be of robust construction, unidirectional type, matching with the amplifier, immune to stray magnetic fields and with noise cancelling characteristics. It shall have a frequency response covering frequency range of amplifier and noise free true reproduction of human speech shall be possible with the microphones.

v. Selection switches shall be provided for one each for individual zones. One switch

shall be provided to select all zones simultaneously so as to make announcements in all speakers simultaneously.

vi. LED indications shall be provided for Power on and all Zone switches.

6.03 LOUD SPEAKERS:

The loud speakers shall be designed to cater to the needs of audibility of announcement in a plant. Depending on the ambient noise and sound output requirement the speakers shall be either cone type or horn type. The Cone type speaker shall cater to enclosed space like control rooms, office rooms etc, while the Horn type speakers caters to open space like Plant buildings/ locations. The horn type speakers shall provide output, which is 6dB above the surrounding industrial noise of approximately 80 dB. Control rooms with false ceiling shall be provided with „Ceiling mounted speakers‟, which shall be flushed with the ceiling. The speakers shall be complete with mounting brackets and accessories. Explosion/ Flameproof Loudspeakers shall be provided in specified locations. The speakers shall be normally connected in parallel configuration to the 70/ 100 V output line of the Amplifiers. Individual speaker shall have volume control. The applicable details of each type are given below:

Construction Material for Cone speaker Aesthetically designed wooden/ sheet metal cabinet

Construction Material for Horn speaker LM-6, min.3 mm thick

Construction Material for Flame proof speaker, Driver unit housing

LM-6, min 3 mm thick

Finish MATT.

Mounting Wall/Column



OTHER FEATURES:

A. CONE TYPE SPEAKER:

These shall be permanent magnet, cone type speaker with 6 watts power, line matching transformer housed in sturdy wooden/ metallic enclosure suitable for wall mounting and generally shall be used indoor premises like Control rooms, Electrical rooms etc. The speaker shall be provided with volume level adjustment . The cabinet shall have grilled metal faceplate to diffuse high frequencies and prevent damage to the speaker. Housing shall be treated with acoustic under-coats to prevent resonance.

Technical parameters for these units shall be as follows:

Output power RMS-6W

Voice coil impedance 1kHz, 8 ohms

Frequency response 200Hz – 10000Hz, +/-3dB

Volume control To be provided

Protection-class IP-54

B. CEILING MOUNT SPEAKER:

Power Min Max

6 W 10 W

Frequency Response 100 Hz to 8000 Hz min.

Type Indoor

Mounting Ceiling

Impedance 8 Ohms

SPL at 1 kHz 93 dB

LMT Optional

Size 260 mm. Dia (typical)

Material FRP

C. HORN-TYPE SPEAKER:

They shall be of power rating 20 Watts complete with driver units, impedance matching transformers, weather canopies, mounting brackets suitable for wall /column mounting and other accessories, suitable for outdoor use normally in Factory shop floors, Gantries, Pumphouse etc. These shall be designed to have uniform sensitivity, high efficiency and shall provide crisp clear speech reproduction. The mounting bracket shall be with adjustable base, suitable for vertical and horizontal mounting. Firm fixing arrangement with spring/ washers shall be provided. These speakers shall be weatherproof conforming to IP 65-protection class. Explosion proof/ Intrinsically safe units shall also be provided wherever specified.

Technical parameters for these speakers shall be as follows:

Output power RMS 20W

Voice coil impedance 1kHz, 8 ohms

Frequency response 200Hz – 10000Hz, +/-3dB

Protection-class IP-65

6.04 LOUD SPEAKER JUNCTION BOX:

Connector Screw type



Cable Entry From bottom to top through glands

Construction Material LM-6, 3mm thick min.

Colour Shade 692 as per IS-5

Protection IP-65

For hazardous locations Explosion-proof LSJBs shall be provided with min. IP 65 Class of protection.

6.05 POWER SUPPLY: Provision is being made for one no. of feeder of 240 V, 50 Hz. Single ph. AC of suitable rating at a single location i.e. UPS DB. The same shall be used for both Telephone Exchange as well as Plant communication System. Requirement of power for all main and sub units shall be met from this location by use of proper distribution and cabling. For this purpose, all necessary distribution boards, sockets (including explosion proof sockets/ JBs wherever required) hardware, cabling, termination etc. beyond the outgoing terminals of the UPS DB, shall be considered by the tenderer in his scope.

7.00 VHF COMMUNICATION SYSTEM: 7.01 For facilitating ease in operation and maintenance a no. of hand-held VHF

Sets(Walkie-Talkie) are envisaged in each Terminal. The sets shall be complete with Rechargeable battery set, Battery charger with detachable Power chord, Set cover and other required accessories. Tenderer‟s scope shall include the responsibilities for obtaining the allotment of three frequencies from the statutory allotment authorities in Govt. of India. For this, all necessary liasoning work from the stage of filing application up to allotment shall be in the tenderer scope. Client shall reimburse the statutory payments made by the tenderer on production of documentary evidence.

7.02 TECHNICAL DETAILS OF VHF SETS: A. GENERAL: - Frequency- 136- 174 MHz VHF band (Supplier is free to suggest any other

band considering the topology details) - Channel capacity- 128 channels. - Power supply: To be provided through rechargeable NiMH batteries (Charger and

batteries to be included in the offer)

- Protection class- Min. IP 54, intrinsically safe, suitable for operation in hazardous area Zone I/II and Gas Group IIA & IIB.

- Resistance against Shock/Vibration- To confirm MIL std 810 C/D/E and TIA/EIA

603.

- Battery strength indication- Through Tri-colour LED.

- Power level adjustment- Switchable.

- Channel sparing- 12.5/25 KHz, switchable/programmable. - Signalling- PTT-ID.

Other features- Channel scan, Time-out-Timer, Busy channel lockout.

B. TRANSMITTER:

Operating temperature Maximum 600C



Frequency stability +/- 0.00025%.

Power 5 W.

FM Hum & Noise -40dB

Conducted / Radiation emission -36dBm

Audio response 300-3000Hz

Audio distortion Less than 3%.

C. RECEIVER:

Sensitivity 0.25 micro volt

Intermodulation 70 dB

Adjacent channel selectivity 60 dB @ 12.5 KHz / 70 dB @ 25 KHz

Spurious rejection 70 dB

Rated audio 500 mW

Audio distortion < 3%.

Hum & Noise -45dB @ 12.5 KHz, -50 dB @ 50 KHz.

Audio response 300-3000 Hz

Conducted spurious emission -57 dBm

8.00 DRAWINGS AND DOCUMENTS: A. The successful tenderer shall submit 6 sets of the following documents / drawings for

approval by the purchaser / his consultants, within 4 weeks of placement of order:

- Technical specification of each components, units/ sub-units and cables.

- General arrangement and mounting details of all units/sub-units.

- Configuration diagram of complete system showing different units and sub-units

- QAP and inspection procedure for main control panel and other units and system as a whole.

- Cable routing

B. Following drawings / documents shall be submitted in six sets by the successful tenderer along with the supply of equipment:

- Technical specification/ Data sheets for each component - Manufacturer‟s catalogue for the above. - General arrangement / system configuration drawing for different units - Wiring diagram for the system - Cable schedule, routing drawing, cable termination details etc. - Instruction manuals for maintenance and operation as well as erection of the

equipment supplied. - Power supply scheme.



9.00 INTERCONNECTION CABLES AND WIRES: A. GENERAL:

Laying of cables shall include different types and sizes of cables required for meeting

the requirements specified in this document. Cable shall be laid in underground trenches, ducts, channels, tunnels on racks, trays,

in GI pipes along structures or buildings as per site condition. Trenches shall be made exclusively for cables of this package and shall not be combined with any other cables.

The tenderer shall have to do any fabrication /modification work involving erection of

cable supporting structures (if required), welding /gas cutting etc. at site as per the actual requirements at site.

The following general laying conditions /guidelines shall be followed by the contractor for laying of cables - All cables shall be tested for proper continuity and insulation before laying. Care shall be taken that kinks, twist or mechanical damage do not occur to the cables

during laying. All bends in cables shall be made with due consideration to the minimum permissible

bending radius of the cables.

Care shall be taken that during laying of cables, loops are not formed. While pulling of cables, they shall not be allowed to be dragged along the ground or

over a second cable already laid. Cable markers shall be provided on either side of rail/road crossings, at each turning

and at regular intervals 40 meters of straight runs for underground cables.

Joint markers shall be provided at every joint on the cable.

Where cables are required to cross under roads, railway lines, surface drains and pipelines, they shall be taken through GI pipes.

Whenever cables leave the trench for entering the buildings, they shall be specially

protected by means of GI pipe. After cable laying these shall be sealed with bitumen or epoxy compound to make them fully watertight.

Cables in underground trench shall be laid with sufficient slack. In no case the cables shall be left in excavation without providing for satisfactory

sealing.

While taking exposed cables along walls or columns, these shall be fixed at a sufficient height for avoiding damage from operation or handling.

All cable openings in the equipment etc. shall be sealed and made vermin proof. All

cable openings in walls and floors shall be repaired/ sealed after laying of cables. Special care shall be taken for protection of cables against mechanical damage. All cables shall be tested for their healthy condition after laying.

B. CABLE TYPE:



# All the external telephone cables shall be armoured, jelly filled multiple pair cables and the same for indoor use shall be PVC insulated, PVC sheathed as per relevant DOT specification. Similarly the external cables for Plant communication system shall be PVC insulated, PVC sheathed and armoured.

# Telephone cable network comprising cables, wires, distribution and termination

devices and accessories etc. are required from exchange equipment up to telephone instruments.

C. LAYING OF CABLES IN UNDERGROUND TRENCHES:

Excavation of trench of min. 700mm depth and upto 300mm width shall be done. Thick River sand cushion of 100mm thick shall be provided below and above the

cable. Good quality burnt bricks shall be provided as per requirement above the sand

cushion. Cable identification tags shall be provided at every 15m interval in case of straight

runs. Cable marker shall be provided at every bend, at every railway track/road crossings

and at every 40-meter interval on straight runs.

Supply of Brick, Sand, cable markers etc is included in the scope of Supply and erection of cable for both telecommunication and PA system cable.

D. LAYING OF CABLES IN CABLE TUNNELS/ ON WALLS AND STRUCTURES:

Inside the industrial buildings like Operating platforms, Pumphouse, Gantry, Storage areas, ECR/ MCC Room etc. cables shall be laid in Medium duty GI Pipe (wherever a small no. of cables is to be laid) or Perforated aluminium tray / with angle iron support.

Plastic/aluminium cable ties shall be provided at one-meter interval.

Cable identification tags on fiber glass/ aluminium with nylon cord shall be provided at

15m intervals.

E. LAYING OF CABLES IN GI PIPES: Only one cable shall be taken in one pipe in case of laying cables through GI pipes. When it is found desirable to install several cables in one pipe total section of cable shall not exceed 40% of the GI pipe internal cross section.

10.00 TESTS AND INSPECTION :

All equipment shall undergo routine tests at manufacturer’s works. Test certificates shall be

submitted when requesting for inspection. The material shall be dispatched only after issue

of inspection or waiver certificate and after getting dispatch clearance. Inspection and

Quality Assurance Plan formats are attached in annexure –2 and annexure –3.

11.00 TWO YEARS OPERATION SPARES:



Tenderer shall supply spares for maintenance of the systems. A generalized list of spares

for each terminal is given below. Tenderer shall quote for a consolidated cost against this

for each terminal. The list is as follows –

Power amplifier module 1 No. Outdoor horn type speaker 1 No. Driver unit for Horn speaker 2 No.s

Explosion proof telephone instrument for outdoor type 1 No. 10 pair krone module 3 Nos 4" * 4" junction box with RJ socket 3 Nos Battery charger unit for VHF set 1 No.

12.00 LIST OF PREFERED MAKES:

EPABX : NEC/ SIEMENS / AVAYA / CROMPTON GREAVES

TELEPHONE INSTRUMENTS : BEETEL / TATA / SIEMENS/ ITI

TELEPHONE INSTRUMENTS, EXPLOSION PROOF

: FLAMEPACK, BALIGA

SMF BATTERY : AMARA RAJA / AMCO / EXIDE/ HITACHI

PA SYSTEM : BOSCH / BNA / AHUJAS / NEUMANN

TELEPHONE CABLES : VINDHYA TELELINK / NICCO / DELTON / RAVICAB/ DOORVANI / RPG TELECOM / FINOLEX

SIGNAL CABLE : USHA BELTRON / VINDHYA TELELINK / DELTON / FINOLEX

POWER CABLE : INCAB / CCI / UNIVERSAL / NICCO / POLYCAB/ FINOLEX

LOUD SPEAKER CABLE : CCI / UNIVERSAL / NICCO /POLYCAB INDUSTRIES/ DELTON / RAVICAB

CONDUITS

A: PVC : AVONPLAST /PRECISION/other ISI brands

B: GI (CLASS B) : GTS / KHANDELWAL / APPOLO ZENITH / JINDAL / TATA / NICCO

VHF RADIO SETS : MOTOROLA, BEL, KENWOOD



13.00 LOCATION OF FACILITIES & SCOPE OF SUPPLY FOR BIHTA DEPOT:

13.1 Owner‟s Scope Owner shall carryout Internal Telephone wiring along with One JB wherein the internal telephone wires shall be duly terminated in Krone Connector. The telephone outlets shall also be provided in the buildings where internal wiring has been done. The electrical contractor shall carryout cable laying up to the junction box of respective buildings, terminate and duly tag the wirings and fix telephone instruments as per the scheme. The details of buildings are as under a. Administration Building- Gr & 1st Floor b. MCC-1,2,3,4- White & Black Oil c. TXR Bldg d. Marketing Room e. Security Bldg- White Oil & Black Oil f. Weigh Bridge room g. Worker‟s Rest Room

13.2 Contractor‟s Scope of Supply All materials, equipments, tools and tackles etc complete as per scope including fixing, testing ,commissioning and training except for internal wiring, JBs and telephone outlets in the buildings as indicated above under “Owner‟s scope”.

The No. and type of Telephone Instruments shall be as per the Telephone Schematic Diagram. Additionally 2 Nos telephone points (Weather Proof) for Outdoor use shall be provided one each at Transformer Yard and Wagon Siding without any extra cost. The telephone outlets and instruments for hazardous area shall be IS, Ex-d type for Gr IIA/IIB.

Total FLP Telephone Instruments to be fixed are as under 1. TT Gantry (BO+WO)= 2 Nos ( 2 Nos Gantry) 2. White Oil Pump House = 2 Nos ( 2 Nos Pump House) 3. Black Oil Pump House = 3 Nos. (3 Nos Pump House) 4. Lube Ware House = 1 No 5. ETP =1 No. Total = 9 Nos Total Non FLP normal telephone instruments in Building/ Structures a. Admn 1st Floor = 20 Nos b. Admn Gr. Flr =6 Nos c. Security Bldg = 2 Nos d. MCC 1,2,3,4 = 8Nos e. TXR Bldg = 1Nos f. Mktg Rm = 3 Nos g. Maintenance Rm = 1 No h. FWPH =1 No i. Security Bldg+WB Cabin Black Oil =2Nos Total = 44 Nos Note: The Contractor should note that the location of the instruments are

indicative and final placement and scheme shall be decided during execution by Site-in-Charge. However, the total no. of telephone instruments shall not exceed the quantity as indicated above.

13.3 The location of Speaker Unit for PA System shall be as under:



a. TAS Control Room (Admn Bldg Gr. Floor) : 1 No. Ceiling Mounted b. In-Charge Room : 1 No.(ceiling Mounted ) c. Corridor Admn Bldg. Gr. & 1st Floor : 2 No.(Indoor) d. Conference room: 1 No. (Indoor) e. Marketing room : 1 No. (Indoor) f. Security Bldg (1st Floor): 1 No. (Indoor) g. Security Bldg (Gr Floor): 1 No. (Outdoor) h. Weigh Bridge Cabin+ BO Security Cabin : 2 Nos (Indoor) i. Effluent Treatment Plant : 1 No. (Explosion Proof) j. Product Pump House: 5 Nos. (Explosion Proof) k. Fire Water Pump House: 1 No. (Outdoor) l. MCC Building : 4 Nos. (Outdoor) 13.3 The location of Announcement Module for PA System shall be as under: Incharge Room- Admn Bldg 1st Floor Control Room- Admn Bldg Gr. Floor Security Bldg- White Oil Gr. Floor

Security Building- Black Oil

Note: The Contractor should note that the location of the instruments are indicative and final placement and scheme shall be decided during execution by Site-in-Charge. However, the total no. of telephone instruments shall not exceed the quantity as indicated above.

The Telephone schematic drawing has been attached with the tender. The Plot plan has also been attached. The Bidder shall estimate the cabling requirement for Telephone System and PA system and quote accordingly. The unit of measurement/ payment is “LOT”.