SPECIAL REPAIRS TO OVERHEAD CONDUCTING, VCBS AND OTHEREXTERNAL SUPPLY EQUIPMENTS AT KANKINARA AREA UNDER GE (N) KOLKATA

Amount

Supply & laying, commissioning and testing XLPE insulated PVC sheathed armoured heavy duty electric cable with 185 sqmm 3 core aluminium conductor for working voltage upto and including 11000 volts, in duct, fixed to pole, wall/ roof and make good to disturbed surface including cable glands and aluminium thimble/ lugs of suitable size for making connection including taking down old cable complete all as specified and as directed. (Make :Havells,Polycab,Gloster,KEI )

All as per Srl Item No. 1 here-in-before but armoured heavy duty electric cable with 150 sqmm 3 core aluminium conductor

Supply, install, testing and commissioning indoor type vaccum circuit breaker of horizontal isolation, horizontal drawout IP Protection IP-4X dust proof, vermin proof totally enclosed safety interlocking system electrically & machanically with all accessories as described here-in-below and including all accessories as specified in Para 19.99 of MES SSR part-1, 2009 and as per manufacturer's recommendations and complete all as specifed and as directed and with following specifications:- (a) VCB 400Amp suitable for 3.3 KV system with rupturing capacity 250MVA. (b) Bus bar 630 Amp 11 KV rated of copper PVC insulated. (c) CT, epoxy cast resin type current transformer having ratio 250-50/5A + 5A accuracy class 1.0 for metering core and 5P 10 for protection purpose with VA burden 15VA. (d) Fixed type, three phase copper wounded, protential transformer epoxy cast resin potential having ratio 3.3KV/110V having classes 1.0 accuracy, 100VA with HT/LT fuse to be fitted with incomming VCB. (e) IDMTL Micro processor based numeric relay with combined 3 O/C and 1 E/F with communicable and current measuring facility type-MICOM P 111-01. (f) Master trip relay type VAJH 13 for tripping -01 & Auxiliary relay AVA33-01 (g) LED type indication lamp ON/OFF/auto/tripping/circuit healthy/spring charge/test/service- 11 Nos. (h) Motor driver spring charger for closing tripping machanism (230V, 1 Ph AC) - 01 No. (j) Shunt trip coil (110V DC)-01 No. (k) Heater with switch-01 No. (l) Power pack bank to provide 110V DC trip coil-01 No with plug and socket.

S&F cable jointing kit for 11 KV grade cable for indoor termination, heat shrink type, joint complete with jointing material and accessories suitable for 3 core XLPE, armoured, aluminium conductor cable of size 150 to 225 sqmm all as specified and directed. (Make - Raychem/ Mseal/ Denson/3M)

S&F cable jointing kit for 11 KV grade cable for outdoor termination, heat shrink type, joint complete with jointing material and accessories suitable for 3 core XLPE, armoured, armoured heavy duty electric cable with 185 sqmm 3 core, aluminium conductor conductor cable of size 150 to 225 sqmm all as specified and directed. (Make - Raychem/ Mseal/ Denson/3M)

M&L for earthing complete with galvanised earth plate electrode (600.00 x 600.00 x 6.00) mm thick, buried directly in ground (earth pit not less than 2.25 m deep below normal ground level ) with top edge of the plate not less than 1.5 m below normal ground level, connected to galvanized earth lead wire 4.0 mm dia of by means of bolts, nuts, check nuts and washers of galvanized iron or steel, earth lead wire protected by and including 15mm dia GI pipe (light grade), alternate layers of charcoal and salt, including 20 mm bore GI tubing for watering to earth electrode, earth lead connected to test point/ distribution panel /feeder pillar etc as directed including necessary earth work, concrete pit with PCC (1:3:6) type C1, pre cast RCC (1:1:5:3) type A1 cover slab duly reinforced with 8 mm dia TMT bar 150mm c/c both way and two numbers lifting handle made of TMT bar and set in cement mortar (1:4), funnel, wire mesh, all as shown in electrical plate No 3 of SSR part-1 and testing on completion including taking out old earthing complete all as specified and as directed. Note:- (Galvanised wire 4mm dia upto 7.5m including testing consider in this item)

MPM ELECTRIC

JADAV CONSTRUCTION

KAY BEE ASSOCIATES

TOTCO