tender for cleaning of electrical equipment in station-a & b conveyors - charges for removal of coal dust from the outer surface of 100 kva lighting transformer body, over core and winding by hand blower, tightness checking of the primary and secondary winding and distribution panel board, after completion of the work checking the ir value including the cost of all consumables, hire charges for t&ps, etc., complete ( ss-i-1 no., ss-ii-1 no. & chs-vi-3 nos. ) , charges for removal of carbon dust deposition in the lighting accessories like mcb / ldbs, light fittings tightness checking of all lighting cables and wires and attending circuit fault, replacement of bulbs and chokes in the conveyor-27a&b, 26a&b, 25a&b, 24a&b, 36a&b, 22, 23, 58a&b, 57, 57a, 54, 50, 50a, 55, 60, 56, 49, 63, bfd-6, 7a, 7b, 10a, 10b, tt-4, junction towers, flood light tower 1, 2, 3, security towers-1 to 7, bunker floor, tunnel, ss-i, ss-ii, chs-vi, transformer yard and highmast light-1, 2 & 3 including the cost of consumables, hire charges for t&ps, etc., complete