Electrical Work related to Repair and Renovation of existing compound lights at Various location inside NBMCH, Darjeeling.

Supply & Erection of 1.5m long pole 80mm dia GI pipe pole with base plate & pole cap Providing CC (6:3:1) muffing 600x600x760 mm in size or equivalent size of cylindrical muffing above ground level /roof top around the pole base complete with 3 mm thick neatly finished cement plaster all round after dismantling the unserviceable muffing if any incl. painting and making earth bolt washer and G.I. earth bolt on plate as to G.S. with out loop box incl. fixing of LED street light.

S/F CMDA type Non-detachable 40mm dia(14SWG) 1.5mtr long arm bracket at an angle10 degree to horizontal with necy bolts nuts etc incl. pinting two coats of Al paint over one coat of RO primer as per GS and as per direction od EIC.

Supplying and Fixing GI water proof looping cable box having hinged GI Top Cover having 4 mm thick with rubber gasket lining, railway type mechanical locking arrangement, earthing terminal with lug etc. of the following sizes as indicated below, Comprising of one 250 V, 4 way stud type terminal etc. and housing the same in pole muffing incl. painting as per direction of E.I.C 200 x 150 x 100mm

Extra on items 1& 2 above, for providing CC (6:3:1) base block (around the pole) dimension 0.45x0.45x0.60 mt. above ground level, neatly cemented finish (3 mm thick), at the base pole (in lieu of CC muffing) incl. drilled hole in pole suitable for alkathene/polythene pipe entry, for street light wiring, without Loop Box

Dismantling 1.8/2 Mtr. Mini pole embedded in CC foundation incl. excavation, filling of holes, restoring surface, loading at site and delivering, unloading, sorting, stacking properly at any place as per direction upto a lead of 1.6 km

Re -erection of 1.8/2 Mtr Mini pole after necessary repairing work incl. fixing of LED street light As per direction of the E.I.C

Painting of Mini Pole of lengths and no. of coats of paint, as given below with ready mixed paint/primer of approved make, and brand incl. preparation of surface by sand paper/emerypaper, cleaning etc. for receiving fresh coat of paint. Upto 9.0 mtr. long pole

1st coat of aluminium paint over 1 coat of RO priming

2nd coat of aluminium paint over 1st coat

Loop wiring by 3 x 1.5 sq. mm. PVC insulated Cu. Wire through prelaid Polythene pipe pipe from Loop Box to Fittings of the pole as per direction of EIC. (Polycab/Havells/RR Kabel/KEI )

Dismalting of existing 2 cr . 06 sq.mm /2 core 10 sq.mm Al Armoured Cable as per direction of the E.I.C

Supply & Delivery of 2/4 Core XLPE Insulated & Sheathed Armoured stranded Aluminium Conductor cables for Working Voltage up to 1100 Volts of following sizes [Make Polycab / RR /KEI/ Havells/ Gloster as approved by E.I.C]

2 Core 10 Sqmm

Laying of cable upto 2 core 25 sqmm on wall/surface incl. S & F MS saddles with earthing attachment in 10 SWG GI (Hot Dip) Wire, making holes etc. as necy. mending good damages and painting.

Supplying and fixing compression type gland complete with brass gland, brass ring & rubber ring for dust & moisture-proof entry of XLPE/PVC armoured cables as below & Finishing the end of following XLPE/PVC armoured cables by crimping method incl. supplying and fixing solderless socket (Dowels make), tapes, anticorrosive paste & jointing materials: 2 core 10 Sq.mm

Supplying, installation, Testing & Commissioning of Street light LED fixture powder coated pressure die cast aluminum body with driver as per the requirement with Driver efficiency >85%, Input voltage: 140-270 Volt AC, freq 50/60 hz, Operating temp range 0o to 45o C, internal surge protection of 5 KV L,N,E as per IEC 61000-4-5, Driver efficiency >85%,THD < 10% as per IEC 61000-3-2 , P. F.≥0.95, IP- 66, IK-As specified below, CRI >70, under voltage and over voltage protection, EMI- EMC As per CISPR -15, lenses for beam angle as per IESNA type I/II/III as per the width of the road and the project requirement., suitable to fit in up to 65mm dia pipe, life time (LED,Driver & electrical circuitry) of minimum 50000 Burning Hours with 70% of initial Lumen maintained till life ends as per LM80 extrapolation IES TM-21-11 report, CCT 3000°K / 4000°K / 5700°K /6000°K/6500°K (As per ANSI Bin), SDCM (Standard Deviation Color Matching) <5, Maximum power consumption should not more than the specified rating and Fixture shall be of relevant BIS standard complete in all respect i/c connections with 1.5 sq mm FR/FRLS, PVC insulated copper conductor single core cable and earthing etc.

as required with Minimum 5 year OEM warranty. LM79 & LM80 Test report from NABL lab for all testing required for LED fixtures as per BIS shall be submitted. Shape size and CCT shall be as approved by Engineer-in-Charge as per requirement. (Thermal management: heat sink of aluminum housing such that LED junction temperature shall not rise above 90o C). System lumen efficacy shall be as below:

90 Watt System lumen efficacy ≥110 <135 lm/Watt (IK-8)

Supplying and fixing double-door SPN MCB Distribution Board with IP-42/43 protection, on wall incl. Inter connection with suitable size of copper wire and neutral link & provision for earthing attachment. [ Make- L&T /Legrand /Crabtree ]

Supply & Fixing of Digital Timer (Make - L&T 67DDT0) in the existing dinrail of the SPNDB & Making neceaary electrical connection as per direction of the E.I.C

Distribution wiring in 1.1 KV single core stranded 'FR' PVC insulated & unsheathed copper wire (Brand approved by EIC) in 20mm size PVC rigid conduit 'FR' (Precision make) incl. necy. fittings as required

2 x 22/0.3 (1.5 sqmm) + 1 x 22/0.3 (1.5 sqmm) ECC

2 x 36/0.3 (2.5 sqmm) + 1 x 22/0.3 (1.5 sqmm) ECC

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