REPAIR / MAINTENANCE OF MCB DBs AND EARTHINGS INCLUDING REPLACEMENT OF OLD UNSERVICEABLE ONE AT PANGODE MILITARY STATION TRIVANDRUM

Amount

Material and labour for distribution board, vertical, made out of sheet metal enclosure (CRCA sheet) dust and vermin proof, double door, VTPN 4 way, 415 volts grade with insulated rated bus bar assembly with isolated neutral bar,door earthing, earth bar IP- 43 protection with poly urithene (PU) gasketing, IK-08 Mechanical impact resistance, door earthing flush to wall, including testing suitable for fixing MCCB, MCB TPN/TP/SPN/SP etc, including taking down existing unserviceable one and removing from site complete all as specified and directed Make: Legrand / L&T/ Havells

All as per ser item No. 1 above but for VTPN 6 way

Supply and fix MCCB triple pole and neutral (four pole) 100 Amps, 415 volts, 50 Hz, having thermal setting range 70% to 100% and adjustable magnetic setting and breaking capacity 25 KA including making incoming and outgoing connections complete all as specified and directed. Make: Legrand/ L&T/ Havells

All as per ser item No. 3 above but for 63 Amps

Material and labour for distribution board made out of sheet metal enclosure (CRCA sheet) dust and vermin proof, double door, TPN 4 way, 415 volts grade with 200 Amps insulated rated bus bar with nickel plated brass, isolated neutral bar and door earthing, earth bar IP- 43 protection with poly urithene (PU) gasketing, IK-08 Mechanical impact resistance, door earthing flush to wall, including testing suitable for fixing MCB SPN, SP etc, including taking down existing unserviceable one and removing from site complete all as specified and directed Make: Legrand / L&T/ Havells

Supply and fix in repair MCB single pole 5 to 32 Amps, 240 volt, 10 KA, C curve, ISI marked as per IS/IEC-60898-1 2002 including sliding bottom clamp, integrated label holder, sliding shutters, biconnect lower terminals with IP-20 protection complete all as specified and directed Make: Legrand / L&T/ Havells

All as per ser item No. 6 above but for MCB single pole and neutral 25 to 32 Amps

All as per ser item No. 6 above but for MCB triple pole 40 to 63 Amps

All as per ser item No. 6 above but for MCB triple pole and neutral 40 to 63 Amps

Supply and fix in repairs of sub main wiring with 4 runs of 6.0 sqmm single core, multi-stranded PVC insulated, FRLS unsheathed cable 1100 Volts grade with copper conductor drawn through and including concealed non metalic PVC FRLS conduit, medium grade, ISI marked, 20/25mm bore with conduit fittings and accessories concealed in wall/ceiling/floor inc 2 runs run of 6.0 Sqmm multistranded PVC insulated FRLS, copper conductor cable as earth continuity conductor and connecting to common earth dolly complete. NOTE: Four runs of 6.0 sqmm copper cable and two run of 6.0 sq mm copper cable alongwith non metallic PVC conduit/conduit accessories will be measured as one unit length Make: V-Guard / RRKabel / Finolex / Havells/

All as per ser item No. 10 above but for sub main wiring with 2 run of 6 sqmm & 1 run of 6 sqmm as earth wire

All as per ser item No. 10 above but for sub main wiring with 2 run of 4 sqmm & 1 run of 4 sqmm as earth wire

Supply and laying or passing through GI pipe, 1100 volts grade heavy duty stranded conductor cable with PVC insulated aluminium conductor served with an inner sheathing of PVC tape armoured with galvanised steel wire or tape and overall PVC sheated 10 sqmm 2 core nominal cross section in service connections including taking down old unsv one from the site complete all as specified and directed Make: V-Guard / RRKabel/ Havells/ / Finolex

Supply & lay GI steel tubing light grade 40mm dia for protection of cable on poles, under road crossing etc, complete all as directed. Make: Jindal /TATA/Zenith/ Surya

Material and labour for Earthing complete in replacement with galvanised iron mild steel earth plate electrode 600 x 600 x 6.3mm thick burried directly in ground vertically to a depth not less than 2.25 metre below ground level with top edge of earth plate at a depth of not less than 1.5 metre below normal ground level, connected to glavanised earthwire 4mm diameter by means of GI Bolts, Nuts, check nuts and washers including earthing pit in PCC (1:3:6) type C-1 RCC pre-cast (1:2:4 type B-1) cover slab 50 mm thick with 8 mm CTD bars reinforcement both ways at 140 mm centre to centre with two handles, 20 mm dia GI pipe medium grade for watering pipe, wire mesh, funnel and providing charcoal or coke and salt in alternative layers of 15 cm and 15 mm dia light grade GI pipe for protection of earth wire from earth plate to MCB DB including necessary earth work in hard/dense soil, returning, refilling and removing of surplus soil to a distance n. exc. 50 mtr and testing on completion complete all as shown in electrical plate No-3 as and directed. NOTE: (a) Earthing shall be provided as per IS:3043-1987. (b) Earthing shall be carried out 7.5 mtr apart from the building. (c) Rate for GI wire upto test point included in the quoted rate. (d) Testing of Earthing will be carried out as per direction of Engr-in-Charge.

Supply and fix in repair earth continuity conductor or main earthing lead fixed to wall on batten or recess or chases or buried in ground or drawn in conduit/pipe or fixed with ploes or any other indicated situation for loop earthing etc. as required using galvanised iron or steel wire 4mm dia complete all as specified and directed (for additional length beyond 7.5 mtr)

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