bid are invited for supply installation testing and commissioning of silent diesel engine driven generating set water cooled 415 volt 3 phase wire engine and alternator capacity 500 kva all work as per atc , supply laying testing xlpe insulated screened pvc bedded galvanized steel strip wire armoured elect power cable heavy duty 1100v stranded aluminium conductor size 300sqmm 3 point 5 core , excavation in trenches not exc 1 point 5m wide or not exc 1 point 5m depth for laying cable or getting out in any type of soil note depth for excavation is 0 point 6 mtr and width is 0 point 45 mtr , removing of excavated surplus soil not exc 50 m and deposited where directed at a level not exc 1 point 5 m above the starting point , returning filling in including spreading leveling watering and well ramming in layer not exc 25 cm thick , material and labour for clean dry tibba sand in trenches or ducts for cushioning to cable complete all as specified punned thickness shall be measured and paid ,