bids are invited for custom bid for services - boq item no 1 semi skilled electrician per shift of 08 hours 6534 shifts , custom bid for services - boq item no 2 supply only coolant additive concentrate (cac) ratio 1:4 for dg set of any capacity - 420 ltrs , custom bid for services - boq item no 3 supply only engine oil sae 15w 40 for dg sets - 1020 ltrs , custom bid for services - boq item no 4 supply only, lead acid battery 180 ah, 12 v, 25 plates complete with first charge of battery including taking down unserviceable battery and all as directed - 14 each , custom bid for services - boq item no 5 supply only, acb 4 pole, 415 v, manual drawout type with microprocessor release of capacity 1250 amps complete all as specified - 02 each