bids are invited for supply & fixing - s&f air termination, single pointed aluminum rod 12 mm dia & 300 mm long complete all as specified and directed. , supply and fixing - s&f aluminum strip 25 mm x 3.15mm fixed frp saddles & fixing screws of size not less than 4mm dia and 32mm long for roof conductors and down conductors above ground complete all specified and directed. , supply &fixing - s&f test point terminal block made of gun metal or phosphorous bronze size 75x75x25mm drilled and screwed including 3 nos, 8mm dia 25mm long hex, head screw complete all as specified. , supply and fixing - s&f gi clamp / saddles / insulator for fixing of earthing strip of any size on the wall / ceiling surface including drilling in wall, fixing of new screws suitable length complete all as specified & directed by engineer-in-charge. , m & l - m&l for tubes, light grade, galvanized, 40mm dia with all fitting, fixed on wall / roof / laid in trenches / floor etc complete all as specified. , supply and laying - supplying and laying gi tube medium grade with all fitting ( union, elbow, socket ) , flanges, nut 7 bolts laid in trenches of size 80mm complete all as specified and directed. , excavation - excavation in trenches n.exc 1.5m wide & n.exc 1.5m in depth for laying & removing of pipe any sizes and getting out in disintegrated rock / laterite soil all as specified. , returining and filling - returning and filling including spreading leveling watering and well ramming in layers not exceeding 25cm thick using hard / dense soil complete all specified and as directed. , excavations - removing excavated material not exceeding 50 mtr and depositing where directed at all level not exc 1.50 mtr above the starting point complete all as directed. total quantity : 1