bids are invited for of custom bid for services - electrical works at weighbridges of ballarpur colliery 3 4 pits - supplying, installing and testing earthing with galvanized iron earth plate size 60 x 60 x 0.6 cm with funnel with a wire mesh for watering and brick masonry block c.i. cover complete with all accesso ries of g.i. materials & recording the results as per specification no. ea-ep supplying, fixing and commissioning 4 pole rcbo 63a, with overcurrent, rated short-circuit breaking capacity (10 ka) an d earth leakage protection, with 30/100/300 ma sensitivity and short circuit and earth leakage trip indication as perspecification no sw-cbo.suppling and erecting porcelain pin type insulator wirth gi s/pn s/pn supplying, erecting & commissioning 2 pole rccb 16/25a, electromagnetic type with 30/100/300 ma sensitivity with earth leakage trip indication complete as per specification no. sw-rccb. supplying & erecting conventional spike type air termination suitable to carry lightning stroke made up of heavy gauge (c class) 40 mm dia 1.2mtr copper pipe of standard length with 5 nos. copper spikes fixed on copper ball of size 100mm as air terminals duly threaded in copper pipe erected on provided foundation in an approved manner as per spicification no. ea-la providing and back filling carbon based environment friendly back fill earth conductivity enhancing compound of 25 kg bag complete stringing of acsr conductor including lo ading, unloading, laying and stringing tigh tening etc (dog 100 sqmm) (in 8 hours -sets) point wiring in pvc trunking (casing-capping) with 1.5 sq.mm (2+1e) frlsh grade copper wire, flush type switch,earthing and required accessories as per specification no. wg-pw/sw point wiring for independent plug in pvc trunking (casing-capping) with 1.5 sq.mm frlsh grade copper wire, flush type switch,earthing and required accessories as per specification no. wg_x005fpw/sw wiring for plug on board with flush switch socket, copper wiring and earthing as per specification no. wg-pw/sw supplying, erecting and marking double pole isolator only switch version of miniature circuit breaker of 40a with required wiring connections and lugs etc. in provided distribution board. supplying & erecting mains with 2x2.5 sq.mm frlsh copper pvc insulated wire laid in provided conduit/trunking/inside pole/bus bars or any other places. as per specification no. wg-ma/bw supplying and erecting single pole and neutral distribution board (spndb), with 2 ways for incoming and 6 ways (6 poles) for outgoing sp mcbs, with door, 1.2mm thickness surface/flush mounted, ip 43 protection on provided iron/gi frame as perspecification no. sw-mcbdb supplying & erecting crca sheet metal one way enclosures of 1.2mm thickness suitable for dp mcb/tpmcb/fp cb/rccb/rcbo complete erected on provided angle iron/gi frame supplying and erecting pin type lt medium insulator 100mm x 62mm dia. with suitable g.l. spindle, nut, bolts complete supplying and erecting gi strip of required size used for earthing on wall and/or any other purpose with necessary gi clamps fixed on wall painted with bituminous paint in an approved manner with joints required as per specificationno ea-ep total quantity :