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Enclosure-10

Annexure-I

Setting of Conference Room comprising the works of Civil & Electrical at Directorate of Naval

Design (DND), New Delhi.

Scope of Work

&

Specification

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Table of Contents

Sr No. PERTICULARS

PAGE

No.

2

SCOPE OF WORK & SPECIFICATION FOR ELECTRICAL WORK

02

3 SCOPE OF WORK & INSTRUCTION FOR MECHNICAL WORK

04

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SCOPE OF WORK &

SPECIFICATION FOR ELECTRICAL WORK

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The Scope of work for Electrical Section comprises of the following:

1. Supply, Installation, Testing and Commissioning of MEDIUM VOLTAGE

SWITCHGEAR

2. Supply, Installation, Testing and Commissioning of

DISTRIBUTION BOARDS

3. Supply, Installation, Testing and Commissioning of MEDIUM

VOLTAGE CABLING

4. Supply, Installation, Testing and Commissioning of concealed type

CONDUIT WIRING

5. Supply, Installation, Testing and Commissioning of LED LIGHT

FIXTURES & FANS

6. Supply, Installation, Testing and Commissioning of

LAN & TELEPHONE ACCESSORIES AND CABLING.

7. Supply, Installation, Testing and Commissioning of UNDER FLOOR RACEWAYS

AND JUNCTION BOXES

8. Supply, Installation, Testing and Commissioning of MODULAR SWITCH

BOARDS AND SWITCH SOCKETS.

9. Supply, Installation, Testing and Commissioning of Epson Make EB X 31

PROJECTORS.

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TECHNICAL SPECIFICATION

LIST OF I. S. CODES:

The relevant I.S. standards are listed below. The latest revision shall be followed for execution of

any work.

I.S.5578 Marking arrangement for switch gear boards.

I.S.694 PVC Insulated Cables and Cords for Power & Lighting.

I.S.732 Electrical Wiring Installation (upto 650 Volts).

I.S. 13703 Low voltage fuse for voltage not exceeding 1000 V AC

I.S. 3043 Code of practice for earthing.

I.S. 3427 Metal enclosed switch gear and control gear.

I.S. 5133 (Part – I) Sheet steel boxes.

I.S. 5216 Guide for safety procedure and practices in electric work.

I.S. 1913 General & Safety requirements for electrical light

fittings / luminaries.

I.S. 8130 Copper conductors in insulated Cable and cords. ETD-9.

I.S. 5578 Guide for marking of insulated conductors.

I.S. 3010 Part I - Appliances connectors.

I.S. 3010 Part II – Appliance inlets.

I.S. 2268 Electrical call bells and buzzers for indoor use.

Light electrical appliances General and safety requirements.

I.S. 374 Fans and Regulators ceiling type electric.

I.S. 3480 Flexible steel conduits for electrical wiring.

I.S. 4160 Interlocking switch socket outlets.

I.S. 2412 Link clips for electrical wiring.

I.S. 9537 Rigid plain conduits of insulation material for electrical

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installation.

I.S. 4615 Switch socket outlets (without interlocking).

I.S. 3854 switches for domestic and similar purposes.

I.S. 1293 Three pin plugs and socket outlets

I.S. 1554 PVC insulated heavy-duty cables.

I.S. 2997 Air circulator type electric fans and regulators.

I.S. 11037 Electronic type fan regulators.

I.S. 13947 General requirement for switch gear and control gear

for low voltages not exceeding 1000 V.

I.S. 8623 Specification for low voltage switch gear and control

gear assemblies (Part I & II).

I.S. 10118 Code of practice for selection, installation and

maintenance of switchgear and control gear.

I.S. 2312 Ventilation fans, A.C.

I.S. 8623 Part I – 1993 – Application for L.T.Cubical Control

Panels.

I.S. 13947 Clearances between phases and between phase to earth.

GENERAL SPECIFICATIONS (ELECTRICAL)

1. SPECIAL INSTRUCTIONS

Actual work shall be carried out by persons holding valid PWD Wireman License. The

electrification work shall be supervised by persons holding PWD Supervisors License / Diploma

Holder.

The work of electrification shall be carried out after the layout is finalised and as per the

instructions given from time to time by site engineer. The electrical installation shall be as per the

Indian standard codes and in conformity with Indian Electricity rules 1956, as amended upto date,

and also the relevant regulation of licensee.

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The scope of electrification work will include providing labour, material, transport, insurance

security, clearing of site, handing over and one year free maintenance of the work from the date

of commissioning. The material used shall be new and of category makes specified or approved.

Any work where specifications are not clear, relevant provision in I.S. or Indian Electricity rules

shall be followed. Engineer’ decision and direction in such cases shall be final.

Site Engineer’s of MDL approval in writing shall be obtained prior to commencement of the work

to the following:-

(a) Layout of wiring.

(b) Sizes of Cables.

(c) Layout of electrical lighting arrangement.

(d) Main Power DB, Lighting DB, Air Condition DB & Computer DB, Telephone and also their

location.

Make of the materials, fittings / fixtures / Fan, etc. which shall be of the approved make.

2. QUALITY OF THE MATERIAL

All the materials shall be new from the fresh stock and shall conform to I.S. specifications. When

standard does not exist, such material / sample shall be submitted for site Engineer’s of MDL

approval, with Test Certificate from Government approved laboratories.

Contractors shall produce, on demand, such details as called for by the site Engineer of MDL to

prove the genuineness of the material.

Rejected materials must be replaced by the contractors within 7 (seven) days.

3. WORKMANSHIP

The work shall be carried out keeping in mind the aesthetic requirement of individual site and

matching of final work with the surrounding by proper finishing as necessary to maintain

uniformity. Good workmanship is an essential requirement of this contract. Poor workmanship

will be liable for penalization.

4. MEASUREMENT & CANCELLATION OF THE PART CONTRACT

The bills of the quantities are based on the plans of the buildings/ individual office showing the

approximate location of all outlets, switchgear, etc. and are approximate only. The contractor

shall be paid at actual as measured jointly by the representatives of the Contractor and Site

Engineer of MDL.

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5. INSPECTION & TESTS

The Contractor shall offer each and every equipment for test at the works or otherwise test

certificate shall be furnished in case inspection is waited.

All the materials shall be approved before starting the work.

PVC switchboards shall be ISI and approved make.

Wiring shall be approved before boards or blocks are fixed up.

Casing-N-Capping / Conduit pipes shall be inspected before erection.

Mounting arrangement of the ceiling fans / fluorescent fittings / spotlights shall be inspected and

approved by the Site Engineer of MDL.

Connections to earth electrodes shall be inspected and got approved by the Site Engineer of MDL,

prior to connection.

6. DRAWINGS & CERTIFICATION:

The contractor shall submit, following certificates, in duplicate, to the MDL/ his authorized

representative, for record purpose after the completion of the work.

(a) Completion Drawings of in built lay out of cable (lighting DB, Power DB, Computer

power DB, Data cable and Telephone DB.)

(b) Copies of Completion Certificate and Test Report submitted to Manufacturer.

(c) Any other Certificate / Reports as called for by the Site Engineer of MDL.

(d) Instruction & Operation Manuals, Catalogues, etc.

(e) On completion of the work, 3 (Three) sets of wiring diagram with proper symbol shall be

prepared and submitted to the Site Engineer of MDL.

All wiring diagrams shall indicate clearly the main Power Distribution Board, MCB Distribution

Board, switchboards, the runs of various mains and sub-mains and position of all the points and

their control. All circuits shall be clearly indicated and numbered in the wiring diagrams and all

points shall be given the electrical connection.

7. WIRING:

All the wiring shall be done on the distribution system with the main and branch distribution

boards at convenient physical and electrical load centre.

All runs of wiring shall be laid in such a manner that crossing is avoided.

All runs of wiring and exact position of all points and switchgear shall be first marked on the

building/office area itself and approved by the Site Engineer of MDL.

Single / Multi-strand single / Double PVC wires shall be from fresh stock. Lights and fans shall be

wired on a common circuit, including socket outlets.

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As regards power circuits, in no case, there shall be more than 2 (Two) power points (16Amp) on

each circuit.

Each sub-circuit lighting load shall be 1000 W or 8 nos. of light point.

Each sub-circuit ‘Power’ or ‘Lighting’ shall be protected by an ELCB / MCB.

When conductors pass through walls and floors, the conductors shall be wired through rigid pipe

PVC sleeves of suitable size permitting easy passing of the wires. The ends of sleeves shall be

neatly fixed with PVC bushings.

All ceiling fans shall be wired to ceiling-rose through connector to which fan rod wires shall be

connected and suspended from hooks or shackles with the insulators between hooks and

suspended rods.

Canopies on top and bottom of suspension rod shall be effectively suspended and connected to

fan motors respectively.

PVC CONDUITS PIPES

The contractor shall supply and install conduits as specified. All accessories, fittings required for

making the installation complete including inspection tees and elbows, check nuts, male and

female PVC reducers and gland, sealing fittings, junction boxes, box covers and saddles. All

supporting accessories shall be supplied by the contractor. Conduit fittings shall be of the same

material as the conduits i.e. all fittings shall be PVC as the case may be.

Conduits shall run along walls, floors, ceilings in accordance with relevant layout drawings.

Conduits shall be run as directly and as possible along with generally indicated route between two

points with minimum length and width, minimum of crossing, bending and cutting but without

creating interference with other installations.

8. LIGHTING SYSTEM & POWER RECEPTACLES:

The contractors shall supply all lighting switches, power receptacles, MCCB distribution boards

and MCB distribution boards complete with MCCB & MCB with neutral terminal blocks and

earthing terminal, glands, supporting and anchoring materials, to make the installation complete.

The contractor shall also supply all lighting fixtures complete with fluorescent tubes / CFL lamps

and cables. All materials, fittings and appliances used in the electrical installation shall conform to

the I.S. specifications.

Wiring shall be colour coded so as to enable easy identification of phase, neutral and earth wire.

Main Power distribution boards shall conform to the stipulations of IS 732 or as approved by the

Site Engineer, MDL at site. These shall be weatherproof and dust-proof and IP protection

mentioned in item specification or technical specification..

Receptacle and lighting fixtures shall be fed from different circuits.

All receptacles and switches to be installed in offices, control rooms and other

modular/decorative/finished/concealed manner are shall be flush mounted.

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All exposed metal parts of the plug, when the plug is in complete engagement with the socket

outlet, shall be in effective electrical connection with the earthing pin.

Metal conduits and fixtures shall be grounded properly by tinned copper wires by means of

approved type grounding clamps efficiently fastened to the conduit pipe with earthing clips. To

achieve perfect electrical continuity, the conduits shall be bounded effectively on both end of

couplings and other points.

Installation tests stipulated in IS 732 and other codes or practices shall be carried out by the

contractor in the presence of the Site Engineer, MDL, before putting the installation in service.

9. LIGHTING FIXTURES:

(a) The lighting fixtures offered shall comply with the following requirement:

• The fixtures shall be suitable for operation on a normal supply of 240 Volts, Single

Phase, 50 Hz, A. C. with a voltage variation of ± 6%.

• All fixtures shall be designed for minimum glare. The finish of all parts of the fixtures

shall be such that no bright spots are produced either by direct light source or by

reflection.

• All fixtures shall be designed for continuous operation under atmospheric conditions

specified without reduction in lamp life, deterioration of material and internal wiring.

• For multi-lamp fluorescent fittings, the circuit should be designed in such a manner as to

reduce the stroboscopic effect to the minimum.

(b) LED LIGHTS

• FOR LED

LED Efficacy - Greater than 100 lumens/watt @ 350mA drive current. (To be confirmed by LM-79

test report).

LED Type: - SMD type only.

Suggested LED Chip: Cree Inc. / Nichia Corporation/ OSRAM/Philips Lumileds / Seoul

Semiconductor (To be confirmed by LM-79 test report) Reported life span of

LEDs used in Luminaries: Greater than 50000 Hrs at the soldering point temp

of 85 deg C & at luminaries driving current.

Colour Temperature of the proposed white colour LED : 5700K (i.e. 5665K +/- 355K, as per ANSI

standard C78.377A). Colour point shall fall within the 7 step McAdam as per

ANSI standard C78.377A.

Colour Rendering Index (CRI): Greater than equal to 80 (To be confirmed by LM-79 test report).

Length of LED tube light: 1200 mm (suitable for replacement of conventional T8, 4 feet tube

light in existing fittings with minor wiring changes in existing fitting as per site

requirement)

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Working temperature: - 10 degree C to +45 degree C

Working humidity: 10% to 85%

• FOR LED DRIVERS :

Efficacy Min: 85% (for driver power output </= 100W)

Power factor of complete fitting : Greater than 0.90

Input Operating Voltage: 140 V to 277 V AC.

In Built Cut Offs :140 V (LOW), 277 V (HIGH)

Driver surge protection standard: Min. 3KV

Total Harmonic Distortion (THD) : Less than 20% at full load

A. Following protection shall be provided in LED Lighting Fixtures:

a) Over voltage both at Input and Output.

b) Over current both at Input and Output.

c) Short circuit

d) Surge protection

B. Tests / Inspection:

Test Reports to be submitted along with offer for the following:

i. CISPR 15/ IS:6573

ii. IEC: 61547 (AS LISTED BELOW)

IEC 61000-4-2/IS:14700 PART 3: SEC:2, IEC 61000-4-3, IEC 61000-4-4 / IS:14700 PART 3:

SEC4, IEC 61000-4-5 3KV or 4KV as offered.

IEC 61000-4-6, IEC 61000-4-11 / IS:14700 PART 3: SEC11

iii. IEC:61000-3-2 ( class C) / IS: 1534 part 1 (d) IEC: 61000-3-3 / IS 14700 Part 3:Sec 2

Driver Safety requirement Standards: IEC: 61347-2-13 / EN:61347-2-13 / IS:15885-2-13. Test

Reports to be submitted.

Inspection will be done in 2 stages.

Stage-1: Inspection of LED Modules before assembly.

Stage-2: After Completion of Assembly & Manufacturing to ensure performance.

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a) All standard tests on LED Lighting fixtures in accordance with the standards adopted & as per

QAP shall be carried out at manufacturer’s works so as to ensure efficient operation and

satisfactory performance of all components / parts of LED lighting fixtures.

b) Work is subject to inspection at all times and at all places by MDL

c) Vendor shall carry out all instructions given during inspection and shall ensure that work is

carried out according to relevant codes of practice & QAP.

d) Decision of MDL in regard to quality of work and materials and performance to specifications

shall be final & binding on vendor. If any item is found not conforming to standards during

test/inspection, the same shall be replaced / rectified by Vendor without any cost to MDL and

shall be re- offered for inspection within reasonable period at factory test.

E. Warranty

a) The bidder shall guarantee for full replacement of LED tube lights (free of cost) due to any failure

in 72 (Seventy Two) months from the date of delivery. Failure shall include failure/ deterioration

of LEDs in terms of performance like guaranteed luminous efficiency, abnormal lumen

depreciation, failure of driver unit.

b) The vendor shall have final and total single point responsibility for the design and performance of

the LED lighting fixture, driver, control gear and all components supplied under this

specification.

c) The supplier shall,

Warrant that the LED lighting fixture, driver and all materials to be free

from defects in Design, material and workmanship.

1. Warrant that the LED lighting fixture will satisfy the requirements of the

intended use and be suitable for the application.

2. Agree to repair or replace any component under this warranty at site with

prevailing model of same make, which proves to be defective during

guarantee period of 72 months. The fixture shall have suitable

mounting arrangement on poles/walls with extended portion of control

gear.

(c) 22W LED LIGHT (IP43) TECH SPECS

System power: - 22 WATT Input Voltage: - 120V ~ 240V AC

LED Type : - High Brightness Power LED Color temperature: - 3000K

Working Life :-> 50,000 Hrs

Working Humidity: - 10 % ~ 90 % RH

Lamp Body Material: - PDC, Aluminum

IP Rating: - IP43

Efficiency: - High efficiency LEDs with far superior luminous flux per

Watt that existing low voltage halogen.

10. CABLES:

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(a) Cables shall be capable of satisfactorily withstanding, without damage, during

transportation to site, installation at site, and operation under normal and short circuit

conditions of the various systems to which the respective cables are connected, when

operating under the climatic conditions prevailing at the site as indicated in this

specification.

(b) Cables shall be capable of giving satisfactory performance when laid in trays, trenches

conduit, and ducts and when directly buried in the ground.

(c) Cables shall be capable of operating satisfactorily under a power supply system voltage

variation of ± 6% and frequency variation of ± 2%.

(d) Cables shall normally be laid under the following conditions

i) In air-ambient temperature of 40ºC.

ii) In ground-ground temperature of 30ºC.

iii) Depth of laying in ground – 750 mm or as per requirements.

iv) In conduits – space factor of not more than 60%.

(e) PVC insulated cables shall be 1100 volt grade heat resistant type, whenever specifically

mentioned.

(f) If shorter radius appears necessary, no bend shall be made until clearance and

instructions have been received from the representative of MDL.

(g) Wherever groups of H.V. and L.V. cables are to be laid along the same route, suitable

barriers to segregate these cables physically shall be introduced.

(h) Wherever cables crosses roads and water, oil, gas or sewage pipes or G.I. pipes, the cables

shall be laid in reinforced spun concrete pipes. For road crossings the pipe for the cable

shall be buried at not less than 1.5-meter depth (Pipe cost is not included in cable cost)

(i) The armour of the cable shall be bonded to the earthing system of the station.

(j) All new cables shall be megger tested before laying and after jointing is completed, all L.V.

cables shall be megger tested and H.V./H.T cables (3.3 KV to 11 KV) pressure tested before

commissioning. The voltage for pressure testing shall as per IS: 1255. 1100/650 Volts

grade cables shall be tested by 1000 volts megger.

(k) Cable cores shall be tested for:

i) Continuity

ii) Absence of cross phasing

iii) Insulation resistance to earth

iv) Insulation resistance between conductors

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Contractor shall furnish all testing kit and instruments required for field-testing whenever asked

by the MDL Site Engineer / Engineer’s representative (without any extra cost for testing the

cable).

(l) CABLE END TERMINATION: Providing cable end termination with suitable type cable

gland and core termination by using tinned copper/aluminium lugs/sockets. Lugs/sockets

shall be fixed to the core by crimping process. If necessary hydraulic compression tool and

die shall be used for higher size cables as per instructions of the Engineer. The end and

core termination shall be suitable for the armoured PVC insulated PVC sheathed cable of

1.1 KV/ 11kV grade with aluminum/copper conductors. One set of termination includes

gland, lugs for cable cores and accessories.

(m) G.I. JUNCTION BOX:

Junction boxes made out of 16 / 18 SWG / 1.62 / 1.21mm G.I. sheet with full-hinged cover

and complete with screw type locking arrangement. The boxes shall have suitable number

of knockouts for incoming and outgoing cables. Incoming and outgoing cables shall be

terminated with proper connection to this box with suitable glands and 10A heavy-duty

connector for termination of wires/cables. Cost of connector is included in the cost of

junction box. Glands are not included in the cost of junction box.

11. G.I. FLOOR TRUNKING / DUCT / RACEWAY

Scope of work shall include providing & fixing of sheet steel factory fabricated galvanised

trunking / duct / raceway with internal partition, wherever required/specified, of required sizes

including providing removable 14 SWG thick G.I.cover, knock out holes (two holes per meter) on

both sides & fixing accessories, earthing with 8 SWG copper wire complete as required,

including supports, bends etc. as per site requirement & specifications as below.

The G.I floor trunking / duct / raceway / shall be made of galvanised plate sheets. Trunking with

its accessories like junction boxes, cover plates of suitable sizes, shall be thoroughly hot dip

galvanised. Galvanising shall be as per IS: 2629/4759. G.I. coupler plates with hardware shall also

be provided. All the other material shall be conforming to relevant IS codes.

Tier type or layered arrangement shall be done wherever possible, for very effective use of

trunking/duct/raceway & Z sections.

For installations using Multi-compartment trunking / duct / raceway. Knock out entries are

meant as an outlets for cables and must be punched by the fabricator himself. The only required

knock-outs entries, from which cables are required to be pulled, shall be properly finished by

grinder to remove the burr while installation, to avoid damage while pulling the cables through

the knock-outs.

For installation under flooring, floor raceway of 14 SWG (2mm) thicknesses shall be used.

Suitable aluminium / GI clamps shall be provided while fixing of floor raceway.

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For wall mounting arrangement, trunking / duct / raceway of 18 SWG (1.2mm) thicknesses shall

be used. Also Z sections of G.I of size 50mmx25mmx50mm & 0f 14/16 SWG shall be provided as

a support for fixing trunking / duct / raceway. These sections shall be fixed to the wall by

coach/wooden screws (35x8) firmly. Suitable aluminium / GI clamps shall be provided while

fixing of floor raceway. Trunking / duct / raceway shall be fixed on these Z sections by G.I nut

bolts of suitable size. These Z sections shall be provided at a distance of one meter of trunking /

duct / raceway.

For ceiling suspended type arrangement, trunking / duct / raceway of 18 SWG 1.2mm) thickness

shall be used. And 25mmx25mmx3mm thick G.I angle support or combination of Z section &

8mm threaded G.I rods shall be provided for trunking / duct / raceway. These supports shall be

fixed to the ceiling by anchor-fasteners firmly.

Items / accessories / parts / hardware which are not specified but required for neat & proper

completion of work, is considered as part of specification.

12. PVC TRUNKING

Scope of work shall include providing & fixing of factory fabricated fire resistant, smoke

suppressing, temperature stable, self extinguishable PVC trunking, with or without internal

partition / compartment, wherever required / specified, of required sizes including providing

suitable and removable PVC cover & fixing accessories as per site requirement & specifications

as below.

The PVC trunking shall be complete with its suitable accessories like cover plate, junction box

with lid, bush adopters for cable entry/exit, and their various types. PVC trunking shall be as per

IS: 14927 part-II. All the material shall be conforming to relevant IS codes.

For installations using multi-compartment trunking, knockout entry shall be provided at a

distance of 500mm for compartments and trunking. This trunking shall be fixed to the wall by

plated metallic screws (35x8) fitted in properly drilled holes for firm support, at an interval of

45cms. Knockout entries are meant as an outlet for wire / cables. The cables, which need to be

pulled from required knockouts entries/exits, shall have suitable bush-adopters, to avoid

damage while pulling the cables through the knockouts. Round shaped knockout entries /exit

shall be made by hole-saw cutter of appropriate diameter in consideration with bush-adopter

& conduits / casing-capping. Conduit / casing capping, as per requirement, shall be provided

while taking access of wires/cables from PVC trunking, through bush adopters’ upto PVC outlet

box (RJ-11/45/ light point). This casing capping / conduit are nit covered under scope of trunking

provision.

Items / accessories / parts / hardware which are not specified but required for neat & proper

completion of work, is considered as part of specification. Reinstatement as original is also a

part of scope of specification.

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13. DISTRIBUTION BOARDS(MCB DB):

• DB’s shall be prewired and shall be fabricated as per IS: 8623.

• Suitable for flush mounting and surface mounting with 100A copper bus bar (for

horizontal type DB), neutral bar, earth bar & cable ties for cable management.

• In case of Vertical DB, the bus bar shall be of 200A rating.

• DB’s shall be of IP-43 degree of protection.

• All the MCB distribution boards shall be fabricated out of 18SWG thick sheet (steel

duly rust inhibited through a process of degreasing, pickling, phosphate and

powder coating to an approved colour over primer and shall be of the totally

enclosed dust proof type suitable for wall mounting.

• All components shall be mounted on DIN rails and covered totally with a sheet

steel cover rendering it finger-safe. Access to the internal connections shall be

only through removing the cover sheet.

• All DB’s shall be internally prewired using copper insulated high temperature PVC

wires.

• Bus bars and neutral bar shall be fully insulated with standard colour code.

• Bus bar withstanding capacity shall be 10kA.

• DB’s must have facility of reversing door without modification, pan assembly for

ease of installation and convertible locking.

VERTICAL DB:

The vertical distribution board shall be three phase and neutral, sheet steel, powder

coated door type. One cover (door) shall be screwed for incoming and outgoing MCB’s

and as cover for protection of complete DB.DB shall be fitted with colour coated bus bar,

neutral link, earth bar and DIN rail etc (Complete pre-wired DB). The TP & SP MCB’s can be

used for out going circuit as per the requirement of site.

MATERIAL:

HORIZONTAL/VERTICAL TYPE MCBDB: ISI marked as per IS 8623 of specified ways (poles),

surface / flush mounting with / without door suitable for 230V / 415V.

LUGS – Copper lugs of suitable Size

IRON WORK – Suitable size of angle / flat.

HARDWARE – SM screws, rawl plug, gutties, etc.

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14. MINIATURE CIRCUIT BREAKERS (MCBs)

MCB’s shall be of current limiting type, ISI marked confirms to IS 8828 -1996. The power loss per

pole shall be low and shall be in accordance with IS 8828 – 1996. All cable entries shall be either

from bottom or top. Miniature circuit breakers shall have quick make and break non-welding

self wiping silver alloy contacts for 10 kA short circuit both on the manual & automatic

operation and shall conform to relevant Indian Standards. All the active, live parts of MCB’s

should be out of human reach, ensuring safety & conforms to IP: 55 degree of protection. The

MCB’s must house transparent label holder to ensure circuit identification. The MCB’s must

have fully insulated safety shutters. The MCB’s shall have lockable switching lever. The minimum

electrical endurance shall be 20,000 operations. The housing of the MCB shall be mounted self-

extinguishing DMC (Dough Moulding Compound). The short circuit current shall be brought to

zero within 4-5 milliseconds from the time they are established. All MCB’s shall have a minimum

short circuit capacity of 10 kA RMS.

MATERIAL:

SINGLE POLE / SINGLE POLE WITH NEUTRAL / DOUBLE POLE / TRIPLE POLE / FOUR

POLE:

MCB, ISI marked as per IS 8828: 1996 (IEC 60898) with hammer trip and watch

mechanism 15 arc plates, 10 kA capacity with nominal rating of 240/415V.

LUGS: Copper lugs of suitable size.

METHOD OF CONSTRUCTION:

MCB’s shall be erected in provided enclosure / distribution board and terminating the

provided wires by copper lugs (crimping type) and connecting the same.

MODE OF MEASUREMENT: Executed quantity shall be counted on number basis.

15. POINT WIRING: (Conform to relevant I. S. Specifications)

1) CASING-N-CAPPING

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Casing-N-Capping and accessories shall be of same make and as per BS 4678 Part IV and I.S.

14927 Part I

In casing-N-capping wires, shall be laid in one length without any joint. Casing-N -Capping shall

have minimum joints.

The casing-n- capping shall be ISI marked.

All the dimensions and thickness shall be as per IS 14927 (Part I & 2).

Instead of internal working sizes, all external dimensions shall be included in specifications.

The casing-n-capping shall be used as per following: -

i) 20mm X 12mm

ii) 25mm X 12mm

iii) 38mm X 16mm

iv) 50mm X 16mm

v) 32mm

And screwed to the wall/ceiling, at a distance of 30 cms to 45 cms. The accessories shall be in

conjunction with casing-n-capping.

Light/fan point wiring shall be carried out with 2 (two) wires of 1 Sq.mm. Multistrand copper

PVC wire, 1100 V grade along with earth continuity conductor of same size complete with three

plate type ceiling rose / batten holder, fixed on square/round block, and 5 Amp / 6 Amp piano

type switch or bell push and other accessories on best quality PVC boards with ISI mark. For

point wiring polycarbonate piano type switches shall be used. Heat resistance sheet shall be

installed for fan regulator when PVC board is used.

Circuit wiring shall be made from required D.B with 1.5 Sq mm 2 wires and same size single PVC

insulated green colour copper earth continuity conductor. Similarly it shall be laid along with

wires for plug sockets (5A / 6A & 5A / 6A / 15A combined). Cost of earth wire & sub main circuit

wiring from D.B is included in the rate of point wiring.

The charges of Bell / buzzer, bell push, bell indicator are included in the cost of the bell point

wiring. Make of Indicator bell shall be as approved by site engineer.

Power point wiring shall be carried out with 2 wires of single PVC insulated copper conductor of

size 2.5 sq mm. Multi strand 1100 V grade with earth conductor of 1.5-sqmm size. (Green colour

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insulation) complete with set of combined 5A / 6A & 15A socket with 1 No.- 15A SP switch,

indicating lamp and control fuse on suitable size PVC / Sun mica Top T.W. boards.

Length of light / fan / bell / independent plug point and power point wiring is as per site

conditions and requirements. No average length of the point shall be fixed. No separate charges

shall be paid for long or short length point.

2) (CONCEALED TYPE)

Providing specified PVC conduit, wires and laying/erecting the conduits in wall, flooring by

making chases/grooves/entries as per approved method of construction along with of

Providing all required approved specified material including hardware & erecting rigid steel /

PVC conduits, junction boxes, provided fan boxes, along with required accessories in RCC slabs

before casting and in walls, flooring by making chases, and refilling the same after erection of

conduits, fixing concealed type boxes for Switch boards in walls, drawing wires through

conduits, from switch board to outlet for light / Fan/ bell independent plug point fixing modular

type switch for controlling power supply and an accessory for outlet of light / fan / bell / plug at

other end, with mounting plate, and terminating wires within at both ends, as per approved

method of construction, closing all junction boxes with plates; removing all debris and testing

the installation for safety and beneficial use.

A) MATERIAL:

POINT WIRING (CONCEALED):

PVC CONDUIT:

PVC pipe minimum 20mm dia and above depending No. of wires to be drawn (refer table no1 /

2), ISI mark, HMS grade (2mm thick), accessories for PVC pipes of the same make that of pipe;

such as spacers & saddles, Couplers, bends, deep / normal junction boxes of required ways and

resin / adhesive to make all joints rigid. Black pipe shall not be used for surface type wiring.

WIRES: PHASE AND NEUTRAL WIRES:

PVC insulated wire of specified size, 1.1 kV & minimum FR grade insulation, electrolytic tough

pitch (ETP) copper conductor, ISI marked, of required colour coding.

EARTH CONTINUITY WIRE:

PVC insulated minimum FR grade copper wire of electrolytic grade, having insulation of 1.1kV

grade, of green / green-yellow colour, as per ISI marked.

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LUGS: Pin type Copper lugs.

ACCESSORIES:

SWITCH: 1 or 2 way modular switch 6/10A.

OUTLET:

Modular type 6A angle/batten lamp holder or 3 plate ceiling-rose or bakelite / porcelain

connector or if plug point, 3-pin plug shuttered socket.

BOARDS:

Switchboards shall comprise of; concealed type box of required modules made of sheet metal or

polypropylene material, mounting plate and cover plate. The required modules shall be worked

out o the basis of points, plug socket/sockets, step type fan regulator, etc are to be fixed. For

every blank module, 1 way blank plate shall be fixed. All the above accessories shall be of same

make, as that of switch.

HARDWARE:

Sheet Metal (SM) screws of sizes specified in method of construction, washers, rawl / PVC / fill

type / wooden gutties, ‘U’ nails, plumbing, plumbing nails, steel binding wire, fish wire 20 gauge,

rubber / PVC bushes etc.

B) METHOD OF CONSTRUCTION:

CONCEALING OF PVC CONDUITS:

GENERAL:

Work shall be done in co-ordination with civil work and to suite final approval layout. Size of

conduit shall be correct depending on number of wires to be drawn. Separate pipe shall be used

for each phase in 1-ph distribution and for power and light distribution and also for wiring for

other utilities like data, telephone, TV cabling etc. the distance between pipes shall not be less

than 300mm or anti electrostatic partition is to be provided. Adequate use of conduit

accessories shall made at required locations. Entries in wall shall be at level of corresponding

conduit with colour coding as per table No.1/4. (For visual identification) flexible conduits used

at expansion joints. Erection shall be done as per the layout finalized, with, minimum sharp

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bends, with junction boxes at angular junctions and for straight runs at every 4.25m, in such

manner so as to facilitate drawing of wires. All bending of conduits shall be done with bending

spring. All joints shall be made rigid with resin.

Table No. 1/4

CONDUIT FOR COLOUR

Light / Power Circuit Black

Security wiring Blue

Fire Alarm Wiring Red

Low Voltage Circuits Brown

UPS Circuits Green

C) CONCEALING OF PVC CONDUITS IN WALLS/FLOORING:

Chases shall be made in wall of adequate width, with cutter and chiseling through it. Necessary

finishing of the wall surface shall be done. Work in flooring shall not disturb RCC work, Conduits

of adequate size shall be erected with use of appropriate accessories, and ‘U’ nails. All joints

shall be made rigid with resin. Draw-in / inspection boxes shall be fixed with check-nut, flush

with surrounding surface and earthed.

D) DRAWING OF WIRES:

GENERAL:

Wires shall be drawn with adequate care. Correct colour coding as per table No. 1/5 shall be

used for phase, neutral, earth. Wires shall not have intermediate joint in between terminals of

accessories. Earth wire and return wire may be looped only within circuit. For lighting load or

single phase distribution wires of two different phases shall not be drawn in single pipe. Lead

wire of sufficient extra length shall be provided and shall be terminated in the terminals of

accessories only, with correct type of and correct size of lugs.

Table No. 1/5

TYPE COLOUR

Phase Red, Yellow, Blue

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Neutral Black

Earth Green

E) DRAWING OF WIRES:

THROUGH PVC CONDUITS:

Insulated earth wire of green or green-yellow colour of minimum 2.5Sq.mm or as per specified

shall be drawn through pipe. Number of wires shall not exceed with respect to size of pipe. At

the termination end flexible PVC conduit shall not be used with gland as per necessity.

16. FITTINGS AND FIXTURES:

Unless otherwise specified fittings and fixtures shall be fixed on wall or ceiling using round

block/ G.I. clamps. PVC junction box recessed-mounting fixtures/tube light fittings shall be

suspended from ceiling by M.S. Galvanised chain ¼” dia. with M.S. hooks.

Fluorescent Tube Light Fixtures shall be suspended from ceiling by means of twin suspension

rods, fabricated from 16 SWG/2.0 Sq.mm, 20 mm. M.S. conduits with ball socket flanges / G.I.

clamps as per instructions of site Engineer. Suspension rods shall be painted with two coats of

white / gray / black enamel paint. Mounting height of the fixtures shall be as per instructions of

the site engineer. Charges for such mounting arrangement shall be paid separately. All fittings

and fixtures shall be provided earthing at particular earth point at ceiling rose.

17. WALL FANS :

Providing and erecting bracket fan 400 mm. sweep A. C. 230 volts 50 cycles 1350 R.P.M.

Oscillating type, plastic or metal blades chrome plated guard with regulator and moisture proof

treatment to winding and with ‘E’ class insulation and marking Sr. No. and date of erection.

18. REMOVAL OF ELECTRICAL ACCESSORIES :

The existing electrical accessories such as switch gears, point wiring, main, sub mains,

cables, fixtures, pumps, poles, panels etc. shall be removed without damaging the

accessories, walls and ceilings etc. in neat manner with good workmanship. The

holes/patches etc. shall be made good and painted to match surrounding surface. Dust

and dirt sprayed due to work of removal/re fixing shall be removed and the contractor

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shall clean the premises properly. The removed material shall be handed over to the

MDL in as is and where is condition.

19. PVC BOX & COVER PLATE WITH RJ-11 FOR TELEPHONE ACCESS ONLY:

PVC box as a telephone access point shall be fixed on the wall by self-threaded screws &

PVC/wooden rawl-plugs for firm support. This PVC telephone access box shall be of

minimum75mmx75mmx35mm deep, with suitable PVC cover plate with provision of RJ11-I/O

socket. RJ11-I/O module shall also be fitted in this socket. Telephone cable shall be terminated

in this RJ11-I/O module with proper croning.

20. ONLY CASING-CAPPING LAYING:

Providing & fixing of casing-n-capping and accessories shall be done with neatly to suit aesthetic

/ surrounding. Casing-n-capping and accessories shall be of same make and as per BS 4678 Part

IV and I.S. 14927 Part I. All the dimensions and thickness shall be as per IS 14927 (Part I&II).

Casing-n-capping shall have minimum joints. Instead of internal working sizes, all external

dimensions shall be included in specifications. The size for casing-n-capping shall be used as per

following: - width: (i) 20mm (ii) 25mm (iii) 12mm and height – 12mm & thickness –1.2mm. These

shall be screwed to the wall/ceiling, at a distance of 30 cms to 45 cms. The accessories shall be

in conjunction with casing-n-capping.

21. ONLY PVC CONDUIT LAYING:

Providing & Fixing of only rigid PVC conduit pipes conforming to IS: 9537 (Part III) marked

‘medium’ shall be used for surface mounting wiring & PVC conduits marked ‘heavy’ shall be

used for surface concealed wiring. All PVC accessories shall be conforming to I.S.3419.

The PVC conduit pipes shall be ISI marked. All the dimensions and thickness shall be conforming

to relevant IS. The wires shall be laid through these conduits, wherever required. Conduits shall

have minimum joints. Instead of internal working sizes, al external dimensions shall be included

in specifications.

PVC conduit of appropriate size on the locations as directed and as per the approved layout. The

PVC conduit shall be of Precision, Asian or Diamond make. The PVC conduit shall run on wall in

perfect manner with proper jointing at the corner. The necessary jointing pieces e.g. bend, tees,

PVC flexible pipe, PVC glands / rubber bush (at the cable entry of junction box) & teakwood

jumpers at (cable crossings) etc. shall be provided as per site condition.

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The conduits shall be used as per the following: - (i) 20mm (ii) 25mm (iii) 12mm. The conduits

shall be fixed with G.I. saddles & G.I spacers which shall be properly screwed to the wall /

ceiling, at a distance of 30 cms. To 45 cms., by self threaded metallic screws & PVC/wooden raw-

plugs for firm support.

22. SWITCH BOX POINT FOR COMPUTERS THROUGH CASING-N-CAPPING:

Scope of work includes providing & fixing of PVC modular switch box. This switch box shall

comprise / consist of twelve/eight/six/four or three module PVC box, cover plate, one no. of

indicator, one no. of 15A switch & 3 nos. of five pin – 5/6 A sockets and its internal wiring.

Switch box shall be made of poly vinyl chloride (PVC). Switch box shall be fixed to the wall /

cabin-partition by self-threaded metallic screws & PVC / wooden rawl-plugs for firm support.

Switch box shall be connected with 2 wires of size 4 Sq.mm plus one wire of 2.5 Sq.mm for

earthing wire and 2 wires of size 2.5 Sq.mm plus one wire of 1.5 Sq.mm for earthing wire . Wires

shall be of 1100V grade laid through the suitable sized casing capping of approved makes.

Casing-n-capping and accessories shall be of same make and as per BS 4678 Part IV and IS 14927

Part I. The casing-n-capping shall be ISI marked. All the dimensions ad thickness shall be as per IS

14927 (Part I & II).

In casing-n-capping, wires shall be laid in one length without any joint. Casing-n-capping shall

have minimum joints. Instead of internal working sizes, all external dimensions shall be included

in specifications.

The casing-n-capping shall be used as per following: - (i) 20mm (ii) 25mm (iii) 38mm (iv) 50mm,

and screwed to the wall / ceiling, at a distance of 30 cms to 45 cms. The accessories shall be in

conjunction with casing-n-capping.

23. TELEPHONE CABLES:

The telephone cables shall be of approved make and the conductor of all the cables shall be

tinned copper of 0.5 mm dia in size.

The cable shall be laid in PVC casing-n-capping or PVC conduit of MMS (Medium Mechanical

Strength) of appropriate size inside cabins and rooms / on the locations as directed and as per

the approved cable layout at the site. The rates for the same shall be paid as per BRC items.

At floor crossing the cable/cables shall be laid in B class G.I. Piping or in a suitable 18 SWG G.I.

channel covering firmly secured to the walls as per the direction of site engineer. The height of

covering shall be of 2 meter from the floor level or for G.I. channel. All the holes in the slab/wall

shall be filled up properly and made good. The T.W. jumpers shall be provided at all points of

cable crossing. Casing & Capping joints to PVC pipe connected to M.S. Junction boxes shall be

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through suitable size PVC flexible pipe, properly connected on either side. The cost of the

trenches same shall be paid separately.

24. TELEPHONE WIRING:

GENERAL

All material shall conform to relevant standard as per BIS and shall carry ISI Mark. If any

Particular category of material for which ISI mark is not available in market, it shall be

approved either by ITD/DOT of Govt. Of India.

Work shall be carried out as per Method of Construction specified by BIS and as Specified by

DOT (Department of Telephone) Govt, of India. Material and work not qualifying to any

provision mentioned above shall be to the Satisfaction of Engineer in Charge.

SCOPE

To provide wiring for telephone on surface of wall or ceiling concealed in slab, wall, under

flooring, etc, through existing metallic conduits, rigid PVC conduits, PVC trunking with all

necessary hardware, material etc.as specified.

To provide, install, test & commission the instruments / equipments and accessories used In

telephone system, such as; Main Distribution Frames (MDF), Krone Modules, Over Voltage

Magazine, PBX/ EPABX, CO-axial cable Rosette box, Jumper wire etc.

A) MATERIAL

SADDLES: Saddles fabricated from G-I sheet of required gauge (10/18 gauge) either Galvanized

finish or painted with superior quality enamel black paint, with necessary Shearing for

mechanical strength, semi circular shaped with extended piece having suitable Holes for fixing

on spacer.

HARDWARE: Sheet Metal (SM) screws of required sizes, plugs wooden gutties, etc.

MDF: Manufactured by reputed manufacturer of specified capacity facility for wall mounting,

with door & lock, aluminum frame for fixing of KRONE, duly enclosed in cabinet Made from 18

SWG CRCA sheet with powder coating of required colour.

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JUNCTION BOX: Manufactured to required manufacturer of specified capacity, facility for wall

mounting with door & lock, aluminum frame for fixing of Krone duly enclosed in cabinet Made

from18 SWG CRCA sheet with powder coating of required colour. The depth of the box should

consider the height of KRONE module plus protection magazine.

OVER VOLTAGE PROTECTION MAGAZINE: Manufactured by required manufacturer of 10 pair

capacity, with 3 pole gas discharge tube should be properly fitted on KRONE Module in MDF /

Junction box.

ROSETTE BOX: PVC / Bakelite box , RJ 11 jack facility for fixing on wall

JUMPER WIRE: Twin twisted PVC insulated with Tinned copper solid conductor minimum 0.5

Min dia.

KRONE Module: Disconnection type KRONE module having capacity to connect 10 pairs with

silver- plated terminal contacts.

METHOD OF CONSTRUCTION:

4.1 DRAWING OF TELEPHONE WIRE THROUGH STEEL CONDUIT / PVC CONDUIT / PVC TRUNKING

As specified in Chapter for Point Wiring.

4.2 Erection Telephone cable:

Erection shall be done as per the layout finalized, in perfect level and

Plum, before fixing The Cable shall be straightened as far as possible for good aesthetics look.

Cable shall be fixed with saddles firmly clipped on cable. Saddles shall be fixed to wall with

minimum 50x8mm SM screws with plugs / wooden gutties ( Distance between two

saddles shall be minimum 600 mm). Wooden gutties shall be used wherever required

(Especially for stone wall). The entries made in wall, floor slab, etc for laying the cable shall be

made good by filling and finishing with plastering the same.

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4.3 Erection of MDF Junction box / Rosette box / PBX / EPABX, etc: Specified equipment shall

be fixed to wall with minimum 50 x 8mm SM screws, with Necessary plugs, wooden gutties, etc.

or may be fixed on Table Top if required.

C) MODE OF MEASUREMENT:

Work done for telephone in Steel / PVC conduit / PVC Trunking will be measured on running

meter basis, (i. e per running meter) for each single run.

25. COMPUTER CABLING

A) UTP NETWORKING CABLE

GENERAL:

All material shall conform to relevant standard as per ISO/ IEC1801, CENELEC EN50173 & TIA/EIA

568-B2-1; CUL listed & ETL verified.

Material and work not qualifying to any previous mentioned above shall be to the Satisfaction of

Engineer in charge.

SCOPE:

To lay the cables for Computers on surface of wall or celling concealed in slab, wall under

flooring etc. Through existing metallic conduits rigid PVC trunking with all necessary

hardware, material, etc. As specified. The cable shall be used only for connections

between information Outlet & Patch / Multimax Panel (Exception For making MDIX

patch cord)

MATERIAL:

UTP cable

4 pairs, 100 ohms, unshielded twisted pair (UTP) separated by a PE former (Star shaped)

solid 23AWG tinned copper conductor rated for temperature of 75° C, PVC insulated grey

colour with following types as in the table 1.12/1

Table 1.12/1

Sr. No. Type Class Tested frequency

1 Cat 6 E 350 NHz

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2 Cal6+ E 500 MHz

1. The Category 6 cable and Category 6 channel components shall be manufactured by

a single manufacturer. The manufacturer shall warrant the Category 6 channel cable.

2. The Delay Skew on the 100 meter channel shall not exceed 30 ns.

3. The 20 year warranty shall be a transferable warranty and has component

replacement policy in case of manufacturing defect.

4. Category 6,100 mtrs. Channel, 4-connection model should guarantee 400% margin

over standard NEXT specification across swept frequency.

5. Category 6,100mtr channel 6-connection model should guarantee -4dB margin over

6. The high performance Category 6 UTP cable 23AWG shall be of the traditional round

design with Mylar bisector tape Non-Plenum rated.

7. The cable shall support Voice, Analog Baseband Video/Audio, Fax, Modem,

Switched-56, T-1, ISDN, RS-232, RS-422, RS-485, 10BASE-T Ethernet, Token Ring, 100Mbps

TP-PMD, 100BASE-T Ethernet, 155 Mbps ATM, AES/EBU Digital Audio, 270 Mbps Digital

Video, 622 Mbps 64-CAP ATM and emerging high-bandwidth applications including 1Gbps

Ethernet, 155 gigabit ATM IEEE 13948 S1 00and S400, as well as all 77 channels (550 MHz)

of analog broadband video.

8. The cable jacket shall comply with Article 800 NEC for use as a non-plenum cable.

The 4 pair UTP cable shall be UL® and c (UL® Listed Type CM.

9. Performance shall be characterized to 550 MHz to support high bandwidth video

applications

NON PLENUM CATS UTP CABLE

1. Weight 25.3 lb (1000 ft)

2. Jacket thickness =.022 in

3 Outside Diameter =0.232 in

4 Conductor Diameter =.022 in

5 Insulation Type = High density Polyethylene

6 Material = PVC

7 Maximum Pulling Tension = 25 lbs

8 Nom, Velocity of Propagation = 0.69

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9 Max DC Resistance = 9.83 Ohms/100m

10 Mutual Capacitance @ 1 kHz = 4.95 nF /100m

11 Operating Temperature = 20 to 60° C

12 The high performance Category 6 UTP cable shall be of the

traditional Round design with Mylar bisector tape

13 The 4 pair UTP cable shall be UL Type CM ( non-plenum)

14 Performance shall be characterized to 550 MHz to support high-

Bandwidth video Applications.

METHODS OF CONSTRUCTION:

The cable shall be laid in provided separate casing n capping PVC conduit/trunking 400mm

away from electrical cables wherever required without sharp bends. The cable shall be spliced

at both the ends for punching/ crimping at keystone jacks/ UTP connections

MODE OF MEASUREMENT: Executed quantity shall be measured on running meter basis

B) UTP PATCH CORD

SCOPE:

Structured cabling to make connections from switch to patch panel or information outlet to

computer.

MATERIAL:

UTP PATCH CORD:

Assembly (conforming to EIA/TIA 5688-2-1) of Cat 6 type 4 unshielded twisted pair 24-26AWG

(0.51mm-0.40mm),each pair separated by a PE former(Star shaped) 100ohms standard wire

PVC insulated cables with modular RJ-45 polycarbonate UL94V housing15 milliohms gold over

nickel contacts (superior three piece connector) crimped on both ends with T568A & t568B wiring

schemes with 8P8C connection. The cord shall be branded. The cords shall be used in structured

cabling in accordance with following table1.12/2.

Table 1.12/2

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Sr. No. Length Use in

1 1m from switch to patch panel

2 3m from computer to information outlet

1. All patch cords shall exceed TIA/EIA and ISO/IEC Category 6/Classes E Specifications.

2. All patch cords shall be backward compatible with Category 5 and Category 5E systems

3. The patch cords shall incorporate an anti-snag feature that provides maximum

protection from snagging during moves and re-arrangements.

4. Patch cords shall be UL listed, UL-C certified and AUSTEL approved Patch cords shall support

network line speeds in excess of 1 gigabit per second

PHYSICAL SPECIFICATIONS:

Contact Material

: Phosphor Bronze

Contact Plating : Gold 50 micro-inch (1-27 microns) Nickel

100 micro-inches (2.54 microns)

Insertion Life : 750 minimum

Plug Material : Polycarbonate UL-rated 94 V-O

Operating Temperature: 14°F to 140°F (-10 °C to 60°C)

METHOD OF CONSTRUCTION:

The patch cords shall be erected for making connection from switch to patch panel or from

computer to information outlet.

MODE OF MEASUREMENT:

Executed quantity shall be counted on number basis.

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26. NETWORKING ACCESSORIES (NAS) LAN ACCESSORIES

A) UTP CONNECTOR (RJ-45)

GENERAL:

All material shall conform to relevant standard as per TIA/EIA 568-B2-1

SCOPE:

To make MIDX (Cross) patch cord required for cascade connections of switches & Routers.

MATERIAL:

UTP connector:

Assembly of Gold over nickel contacts with 1.5A current carrying capacity, 30V with milli ohms

contact resistance, 8P8C connection easy to crimp with crimping tool in polycarbonate UL94V

housing.

METHOD OF CONSTRUCTION:

The UTP cable shall be spliced, untwisted not more than 12mm, inserted into the connector

with sequence as shown in the diagram as per EIA/TIA 568 B-2-1& crimped firmly with

crimping tool.

MODE OF MEASUREMENT: Executed quantity shall be counted on number basis.

B) INFORMATION OUTLET (ETHERNET) (lO)

GENERAL:

All material shall conform to relevant standard as per TIA/EIA 568-B-2-1

SCOPE:

For connecting computer to wired LAN or external wireless Ethernet interface in Wireless LAN

MATERIAL:

INFORMATION OUTLET FLUSH/ SURFACE TYPE:

Spring shuttered front access, high impact plastic body FR grade with high performance

unshielded RJ-45 keystone jack (conforming to

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EIA/TIA 568-B-2-1 Cat 6), 15 millions contact resistance, gold over nickel spring contact, 1.5A

current carrying capacity with

T568A/T568B wiring option, insulation displacement connector for cable crimping to accept

22-26AWG solid wire for connections up to Gigabit Ethernet.

• All category 6 outlets shall meet or exceed Category 6 transmission requirements for

connecting hardware, as specified in TIA/EIA 568-B-2-1 Commercial Building

Telecommunications Cabling Standard and ISO/IEC 11801:2002 Second Edition

• The Category 6 outlets shall be backward compatible with Category 5E, 5, 3 Cords

and cables.

• The Category 6 outlets shall be of a universal design supporting T568A&B wiring

• The Category 6 outlets shall be capable of being in a modular patching situation

or as a modular telecommunication outlet (TO) supporting current 10BASE-

T,Token Ring,100 Mbps TP-PMD, 155 Mbps ATM, 622 Mbps ATM using parallel

transmission schemes and evolving high speed, high-bandwidth applications,

including Ethernet, 1000BASE-T and 1.2 Gbps ATM.

• The Category 6 outlets shall be capable of being installed at either a 45° or a

90 ° angle in any M- series modular faceplate, frame, or surface-mounted box

avoiding the need for special faceplates

• The Category 6 outlets shall have improved pair splitters and wider channel for

enhanced conductor placement. The outlet shall also have a low-profile wire

cap, which protects against contamination and secures the connection.

Multicolored identification labels shall be available to assure accurate installation.

HARDWARE:

Sheet Metal (SM) screws of required sizes, plugs, wooden gutties etc.

METHOD OF CONSTRUCTION:

The information outlet shall be fixed on the wall with sheet metal (SM) screws, rawl

Plugs/wooden gutties and making due connections as per EIA/TIA 568 B-2-2 by splicing

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the UTP cable, untwisted up to 12mm & punching the 4 pairs in the keystone jack with

the help of punching tool. Not a single wire shall be left without connections.

MODE OF MEASUREMENT: Executed quantity shall be counted on

Number basis.

27. PORT JACK PANEL FULLY LOADED

Description 24 PORT JACK PANEL fully loaded

Characteristic Min. Required Specification

Features Should be made of powder coated steel, in 24 port configurations.

Allow for a minimum of 200 re-terminations without signal degradation

below standards compliance limit.

Have port identification numbers on the front of the panel.

Should have self adhesive, clear label holders (transparent plastic

window type) and white designation labels with the panel, with

optional color labels / icons.

IDC: Suitable for 22-26 AWG stranded and solid wire compatible with

both 110 & Krone punch down tools

Each port / jack on the panel should be individually removable on field

from the panel.

Improved cable management with optional cable management bar

The Cat-6 transmission performance is in compliance with the

ANSI/TIA/EIA 568C.2 standard

Mechanical

Characteristics

Plastic Housing: ABS , UL94V-0 rated

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Jack Connector Operating Life: Minimum 750 insertion cycles

Contact Material: Copper Alloy

Contact Plating: 50µ” Gold plated on plug contact area

Contact Force: 20N max ( IEC 60603-7-4)

Plug Retention Force: 15 lb.

IDC Connector Plastic Housing: Polycarbonate, UL94V-0 rated or equivalent

IDC cap : ABS, UL 94V -0

Contact Material: Copper Alloy

IDC Contact Plating: Phosphor bronze with tin plated

Insertion Force: 20N max ( IEC 60603-7-4 )

Wire Accommodation: 22-26 AWG solid

28. VGA CABLE

A Video Graphics Array (VGA) connector is a three-row 15-pin DE-15 connector. The 15-pin VGA

connector is found on many video cards, computer monitors, and some high definition

Television sets.

VGA connectors and cables carry analog component RGBHV (red, green, blue, horizontal sync, vertical

sync) video signals, and VESA Display Data Channel (VESA DDC) data. In the original version of DE-15

pinout, one pin was keyed and 4 pins carried Monitor ID bits which were rarely used; VESA DDC

redefined some of these pins and replaced the key pin with +5 V DC power supply.The VGA interface is

not engineered to be hotpluggable (so that the user can connect or disconnect the output device while

the host is running), although in practice this can be done and usually does not cause damage to the

hardware or other problems.

The required VGA Cable should be of 10Mtrs in Length respectively with end connectors complete

suitable to connect Laptop or P.C. to either projector or HDTV.

29. HDMI (High-Definition Multimedia Interface) CABLES

HDMI is a proprietary audio/video interface for transmitting uncompressed video data and

comppressed or uncompressed digital audio data from an HDMI compliant source device,

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such as a display controller, to a compatible computer monitor, video projector, digital

television, or digital audio device. HDMI is a digital replacement for analog video standards.

HDMI implements the EIA/CEA-861 standards, which define video formats and waveforms,

transport of compressed, uncompressed, and LPCM audio, auxiliary data, and

implementations of the VESA EDID. CEA-861 signals carried by HDMI are electrically

compatible with the CEA-861 signals used by the digital visual interface (DVI). No signal

conversion is necessary, nor is there a loss of video quality when a DVI-to-HDMI adapter is

used.)

The required HDMI Cable should be 10 Mtrs. and 20 Mtrs. in length complete with end

connectors suitable to connect with Projectors, HDTV & Laptops.

30. EPSON EB-X31 PROJECTOR

Supply, Installation, Testing and Commissioning of Epson make EB –X31 Projector with ceiling

mounting accessories complete with all documents, software and standard warranty.

31. 24 U WALL MOUNTING RACK

Supply, Installation, Testing and commissioning of 24 U Wall mounting Network Rack. The brief

technical specifications of Network Rack should be as given bellow.

- Width 800 mm x Depth 1000 mm,

- Perforated front and back door, side

Doors, locking facility,

- Rack with caster wheels and leveling feet,

- Digital temperature indicator,

- 4 no’s of fans,

- 4 no’s of shelf,

- 2 Vertical cable channels,

- Earth connectivity kit,

- 4 cable managers,

- 4 cable channels,

- 10 no’s of power sockets,

- Suitable for mounting routers/ switches/ firewalls

etc along with necessary screws and fittings.

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SCOPE OF WORK &

INSTRUCTION FOR MECHNICAL WORK

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AC INSTALLATION WORKS AT PROPOSED INTERIOR WORK OF CONFERENCE ROOM, FOR DND, NEW DELHI

SCOPE OF WORK

A) Works under this shall comprise of Supply, installation, testing and commissioning of following at

DND Conference room, New Delhi.

i) Inverter Cassette type Air conditioning units for Conference room consisting of indoor units,

outdoor units, cordless remote controllers, remote control holder, adequate length of power

supply cables along with connecting pin & accessories.

ii) Suitable L-shaped brackets duly painted with bush and fasteners for mounting outdoor units.

iii) Copper refrigerant piping with insulation/nitrile rubber sleeves including clamping/supporting

arrangement including making precise holes in the walls with core cutting m/c, and proper

finishing for connectivity from indoor to outdoor units.

iv) M.S stands, grill work, structural work as per site requirements for installation of A.C outdoor

units if necessitated as directed by MDL engineer.

v) ISI mark UPVC plumbing grade condensate drain pipe & fittings with supports & clamps etc. all

complete for taking out condensate drain water from AC units up to the nearest drain point as

directed by MDL engineer, including looping & 6 mm thk nitrile rubber insulation on drain pipe.

vi) 2.5 Sq mm 3 core Electrical cable for Inverter split AC (from indoor units to outdoor units) all

complete.

vii) Purging with suitable gas for flushing before leak test, leak testing of copper piping & first

charge of pre-filled refrigerant gas (eco-friendly refrigerant gas) considering lengths of copper

piping & A.C units capacity etc all complete.

viii) Supply, Installation, Testing and Commissioning of ceiling suspended fresh air inline fan single

phase 230 V of suitable dia. for fresh air.

ix) The contractor shall arrange free of cost servicing to be carried out by Air conditioner

Manufacturers service engineer for the completed works including indoor unit, outdoor unit,

copper tubing etc. all complete at the interval of every four months during Defect Liability

Period.

B) DRAWINGS AND DOCUMENTATION

i) The locations of the AC indoor units and outdoor units as shown in the tender drawings are

indicative and approximate.

It is intended to connect the condensate drain pipe of the cassette type indoor units with an

existing old drain line of 25 mm diameter. However, due to the technical reason or site

constraints if the connection of AC condensate drain is not possible with the existing drain

line, then the same is required to be installed, taking into consideration the site conditions,

constraints and after discussion and concurrence of MDL engineer.

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ii) After award of contract, Contractor is required to submit the print of installation/working

drawings of A3 size in 04 sets for the above scope of work and get it approved from MDL before

starting up the work. Drawings (plan and elevation) should indicate the exact locations of AC

indoor units, outdoor units, capacities of the ACs, copper tubing layout from indoor to outdoor

units and its size, condensate drain UPVC piping layout along with size and its looping/routing

from A.C indoor units to the nearest drain point. Drawing shall contain tabulation of all

measurable items of Equipment/Materials/works.

iii) Installation/Woking drawings shall be submitted for approval sufficiently in advance of installation

of any material to allow MDL Engineer ample time for scrutiny. No claims for extension of time

shall be entertained because of any delay in the work due to his failure to produce

installation/working drawings at the right time, in accordance with the approved program.

iv) When MDL Engineer makes any amendment in the above drawings, the contractor shall supply 02

fresh sets of drawings with the amendments duly incorporated, for approval. The contractor shall

submit further 02 sets of installation/working drawings to the Engineer for the exclusive use by

the MDL Engineer.

v) 4 sets of prints of approved drawings in A3 size to be submitted by the Contractor to MDL.

vi) Where drawings are approved, said approval does not mean that the drawings supersede the

contract requirements, nor does it in any way relieve the Contractor of the responsibility or

requirement to furnish material and perform work as required by the Contract.

vii) After completion of work, Contractor shall submit 04 sets of A3 size prints of “as built” drawings

and 02 sets on CD-R disc in a PC compatible AutoCAD & PDF format

C) MATERIALS, DESIGNS, INSTALLATIONS, TESTING & COMMISSIONING

i) Inverter split A.C units shall be factory assembled, wired and tested. It shall comprise of Indoor

and Outdoor Units along with all the accessories. Copper Refrigerant Piping interconnecting

evaporator and Condensing Unit shall be charged with eco friendly refrigerant gas and be

provided with suitable length of Copper Refrigerant Piping with insulation and cabling to be

provided per Evaporator Unit.

Condensing Unit shall be suitable for outdoor installation with weather proof enclosure and

shall be field serviceable. Also, the indoor unit & corresponding outdoor units shall be

numbered for identification as per installation drawing.

ii) Contractor to select the model from the preferred list of manufacturers of the Inverter split A.C

considering the climatic conditions prevailing through the year at New Delhi site. After award

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of Contract and before procurement, Contractor to submit, the make and models of the

Inverter split A.C units for all the tonnage capacities which the Contractor intends to supply,

install and commission at MDL site from the preferred list of manufacturers for approval.

Manufacturer’s technical catalogue and details of the make and models of the Inverter split

A.Cs to be furnished by the Contractor. Contractor to indicate the attainable cooling

temperature range for the selected A.C model.

iii) Copper refrigerant piping of suitable diameter compatible with the refrigerant gas & air

conditioner model with insulation/nitrile rubber sleeves (19 mm thk), end connections to be

installed true to line and level, jointing by brazing & adequately supported intermittently at

uniform distance with appropriate clamps / support arrangement including making precise holes

in walls with core cutting m/c & proper finishing for connectivity from indoor to outdoor unit etc

all complete as directed by MDL engineer. The alignment of copper piping in horizontal and

vertical direction to be maintained.

iv) Reputed make of ISI mark Hard UPVC plumbing grade condensate drain pipe & fittings to be

used for taking out condensate drain water from AC Units up to the nearest drain point as

directed by MDL engineer. Drain piping of specified sizes and suitable of 6 Kg/Sq cm. pressure

rating with water tight connections, leading from the room unit to a suitable drain point.

Complete drain piping shall be made leak proof and water tight by means of precise installation

and the use of leak proof sealant/adhesives. The joints shall be properly sealed so that there is

no water leakage. Proper grouping of condensate drain pipes & gradient to be maintained for

the easy flow of condensate drain water from the A.C units to the drain point. UPVC pipelines to

be adequately supported intermittently at uniform distance with clamps, pipe supports with

proper alignment in horizontal and vertical direction.

v) Inline fresh air fan -

The INLINE fresh air fan shall be designed for space saving / low noise generation. Inline fan

shall preferably be single skin with swing out motor; this fan shall be complete with casing

and impeller. Direction of discharge and rotation position shall be as per the job requirement

and shall be marked on the fan assembly.

Brief specifications for the fan are as under.

a. The proposed fan shall be complete with casing, motor and impeller. Direction of

discharge and rotation position shall be in line with the layout shown.

b. Housing shall be of GSS powder coated design. The duct/fresh air piping connections

at the inlet and discharge side of the fan shall be in accordance with the manufacturer

standards to avoid transmission of vibrations if any to the ducting / fresh air piping.

Suitable arrangement for connecting the fan to the fresh air pipe to be provided.

c. Impeller Fan shall have Aluminium impeller with backward curved blades suitable for

lowest sound power level. Impeller shall be statically and dynamically balanced.

Necessary acoustic insulation required to bring down the noise to the value specified in

the BOQ shall be carried out if required; the product shall be supplied with factory

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insulated design in this case.

d. Ball Bearings shall be completely maintenance free and can be used in any mounting

position at maximum indicated temperature.

e. Fan motor shall be energy efficient type have external rotor motor or IEC standard

motor supplied with built-in thermal contacts. At the critical high temperature point the

thermal contact shall open and break the power supply of the fan.

f. Drive of the fan shall be direct driven.

g. Performance Data - Fan shall be selected for the lowest operating noise power levels.

Capacity ratings, power consumption with operating points indicated shall be submitted

and verified at the time of testing and commissioning of the installation. All technical

data of fan should be as per AMCA accredited. High temp fan should have valid

European certification in accordance with EN12101-3.

h. The Fan should be supplied with Manufacturers Test Certificate.

vi) Unless otherwise specified and approved, all materials and designs shall comply with the current

issue of the relevant Indian or International Standard Specifications and their installation shall

comply with the relevant current Indian/International Standard Codes of Practices.

vii) Materials, designs and installations shall comply with the building regulations, local authority

regulations and by-laws, Gas Safety Regulations, National Electric Codes for the Electrical

Equipment of buildings, insurance company requirements and other statutory rules. All

equipment and materials shall be products, which shall meet with the acceptance of authorities

having jurisdiction over the work.

viii) Each item of Equipment/Material shall be a standard catalogue product of an established

manufacturer strictly from the manufacturers listed in the list of preferred makes.

ix) All equipment and materials required for installations shall be new and without blemish.

x) Preferred make for wall mounted Inverter Split Air conditioner Daikin/ Mitsubishi/Toshiba

xi) The contractor shall raise inspection call to MDL in the agreed format for the works undertaken at

below mentioned stages –

a) After delivery of material at site before starting of installation works

b) After installation for witnessing testing & commissioning of the completed works.

xii) All the works under or in course of execution or executed in pursuance of the contract shall at all

times be open to inspection & supervision of the MDL engineer / executives & the contractor at all

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times during the usual working hours offer assistance for the inspection of work.

xiii) The contractor shall submit supporting documents such as delivery challan(s), Test reports /

certificates, packing lists, Invoice, Performance guarantee certificates & other technical

documentation in requisite sets as relevant along with the invoice for the purpose of certification

by MDL engineer.

D) PROTECTION OF MATERIALS AND WORK

i) Copper tubes stored on site shall be supported clear of the ground and kept separate from all

other stored ferrous materials & shall be suitably protected against the weather.

ii) All equipments and materials, fixed or unfixed shall be protected against ingress of dirt or

moisture into working parts by means of Polythene covers or other equivalent measures.

iii) Precautions against mechanical damage by other trades shall be provided.

iv) Precautions shall be taken and all necessary protection provided to safeguard the work during bad

weather.

v) The inlet and discharges of all fan coils, and other terminal units shall be kept covered until all local

Plastering, Purging, etc. is completed and the units are ready to run.

vi) Equipment and material damaged shall be replaced by contractor at the discretion of the MDL

engineer. Equipment and materials are subject to rejection and replacement, if in the opinion of

the MDL Engineer, or in the opinion of the manufacturer's engineering department, the

equipment has deteriorated or been damaged to the extent that its immediate use is

questionable, or that its normal life expectancy has been curtailed.

vii) The contractor shall be solely responsible to protect all the delivered materials from the time of

delivery at site till satisfactory completion & handing over of the completed works from any

mode/type of damage/loss that may occur during this period.

E) INSTALLATION LIAISON

i) The Contractor is responsible for the co-ordination of all installation work on site. The Contractor

shall plan his installation before the work is commenced and to ensure correct installation to the

design intent during the course of construction. Any work, which has to be re-done due to

negligence in this respect, will not constitute an extra & also shall not amount to Extension of Time

to the Contract.

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ii) Contractor has to depute experienced and knowledgeable engineer/supervisors in the field of

HVAC who can co-ordinate, execute the work and take site decisions without any delay.

iii) The locations of the AC indoor units and outdoor units are shown in approximate positions on

the Tender Drawings, their exact location shall be determined from the approved installation

drawings.

iv) Particular care shall be taken to obtain uniform and tidy arrangements of wall mounted indoor

and outdoor units.

v) Where the work of the Contractor has to be installed in co-ordination with work of other trades,

he shall assist in working out space conditions to make a satisfactory adjustment.

F) OPERATION & MAINTENANCE MANUAL

Upon practical completion of the works, 03 copies of operation & maintenance manual shall be

provided. This manual shall be of loose leaf type A4 size with ready means of reference and a

detailed index.

The manual shall contain full operating and maintenance instructions presented in a form to deal

systematically with AC units. The manual may contain manufacturer's standard operating and

maintenance instructions and leaflets where these are applicable.

The contractor shall furnish Guarantee / warrantee certificate of each air conditioner unit duly

signed & stamped by the manufacturer, effective from the date of satisfactory completion &

acceptance of the completed works by MDL.

G) REFERENCE STANDARDS

Reference standards to be followed shall be of latest versions.

• ASHRAE Standards

• ASHRAE/ISHRAE Hand Books

• Safety Code for Mechanical Refrigeration, ASHRAE

• HVAC Commission Guideline (ASHRAE)

• IS 1239 for Piping AC INSTALLATION WORKS AT PROPOSED INTERIOR WORK OF CONFERENCE ROOM, FOR DND, NEW DELHI

BILL OF QUANTITIES

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PREAMBLE TO THE BILL OF QUANTITIES

1. GENERAL INSTRUCTIONS

1.1 The Bill of Quantities must be read with the scope of work, Conditions of Contract, Drawings and the Specifications and the Contractor shall be deemed to have examined the Scope of Work, Drawings, Specifications, Conditions of Contract and to have visited the Site and acquainted himself with the Works to be done and the way in which they are to be carried out and all factors affecting the execution of the Works and the Costs thereof including temporary works if required to complete the works.

1.2 All work shall be measured net as it is finished and/or fixed in the Works and no allowance

shall be made for wastage notwithstanding any general or local custom. Any items of work not covered in the Preamble shall be measured as per specifications for works methods laid down in relevant Indian Standards or as decided by the MDL Engineer.

1.3 The quantities set down against the items in this Bill of Quantities are an approximate

estimate of the quantity of each kind of work included in the Contract and are given for the convenience of forming a common basis for tendering. They are not to be taken as a guarantee that the quantities scheduled will be carried out or required or that they will not be exceeded. The MDL reserves the right to delete any item indicated in the bill of quantities at any time.

1.4 The quantities shall therefore not be considered as representing the final measurements, it

being the intention of the Contract (except where otherwise specifically stated) that the actual quantities of work ordered and carried out shall be jointly measured on completion by the MDL Engineer or his authorised representative and the Contractor and valued and paid for at such prices and rates entered by the Contractor in the Bill of Quantities.

1.5 The rates and prices set down against the items are to be the full inclusive value of the

finished work shown on the Drawing and/or described in the Specifications or which can reasonably be inferred there from and to cover the cost of every description of Temporary Works executed or used in connection therewith (except those items in respect of which specific provision has been separately made in this Bill of Quantities) and all the Contractor's obligations under the Contract including testing, giving samples and all matters and things necessary for the proper execution, completion and maintenance of the Works. No claim for additional payment shall be allowed for any error or misunderstanding by the Contractor of the work involved.

1.9 The Specifications and the various Sections in the Bill of Quantities are intended to

cover the supply of all the materials and the execution of all works necessary to complete the Works. Should there be any details of Materials or Construction which have not been referred to in the scope of work, specifications, Bill of Quantities or the Tender Drawings, but the necessity for which may reasonably be implied or inferred there from, or which are usual, or essential to the completion of all works in all trades, the same shall be deemed to be included in the rates and prices within in the Bill of Quantities. The rates and prices shall cover the items as described in the scope of work, Bill of Quantities, tender drawings and other terms and conditions of the contract.

1.10 The Contractor's unit rates and prices in the BOQ shall include

a) all equipment, apparatus, material, indicated in the BOQ, Scope of Work, Drawings, Specifications in connection with the item in question and also associated labour as well as all additional equipment, apparatus, material, consumables usually necessary to complete the system even though not specifically shown, described or otherwise referred to and also associated labour.

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b) It also includes delivering the material, item to the specified storage area at Site. Installation of the same in the specified location as per Drawing & as specified, testing and commissioning as per Specification and direction of the Engineer' at Site.

c) The unit price shall be deemed to include everything necessary to complete the work covered by this item in accordance with the scope of work, BOQ description, Specifications and Drawings.

d) The sum total of all the individual item prices shall represent the total price of the installation ready to be handed over.

e) All equipment, machinery, apparatus and materials required as well as the cost of any tests which the Engineer may request in addition to the tests generally required to prove quality and performance of A.C units. Further, if any equipment, machinery, apparatus and materials found to not comply/fulfil satisfactory performance/duty during such testing, then cost of replacing such materials.

f) Use of any tools, equipment, machinery, lifting tackle, ladders consumables etc. required by the Contractor to carry out his work.

g) All the necessary measures to prevent the transmission of vibration. Storage and insurance of all plant and equipment, apparatus and materials.

2. DETAILS OF MEASUREMENT

2.1. UNITS OF MEASUREMENT

The units of measurement used in this Bill of Quantities are in metric units as follows:

a. Linear Linear metre, centimetre or millimetre abbreviated to 'RM', 'cm' or 'mm' respectively.

b. Numbers Numbers abbreviated to No’s or No.

2.2 INVERTER SPLIT AIR CONDITIONER For measurement and certification of work for Supply & Delivery of Inverter Cassette Air

conditioner at MDL site, Contractor & MDL engineer will jointly verify the quantities by opening the boxes/package and verify the same with technical details furnished, damage due to transportation and handling etc before starting the installation work. Contractor to make all the arrangement for opening and closing of boxes/packages and store the same in proper manner after inspection.

2.3 REFRIGERANT PIPING

Copper piping shall be measured in running meters as actually installed along the centre line of the pipe line including pipe fittings. Copper piping work for refrigerant would be measured in running meters in one direction form indoor unit up to outdoor unit considering suction & discharge tubing as one combined set. Suction & discharge piping will not be measured separately one from another for certification of work done.

2.4 UPVC PIPING FOR CONDENSATE DRAIN

UPVC piping shall be measured in running meters as actually installed along the centre line of the pipe line including pipe fittings.