bids are invited for custom bid for services - erection of lighting over head line along over burden and coal transport roads for illumination in ballarpur open cast mine under ballarpur sub area of ballarpur area - erecting acsr conductor of size 6/1-3.66 mm complete.(mink) (255 kg/km) as per specification no. oh-con/acsr (csr 2021-22) , supplying and erecting m.s. pipe pole ‘b class 80 mm dia 6 m long with polecap, base plate in provided foundation as per specification no. oh-pl/gip , making cement concrete foundation including excavation (45 x 45 x 120)cmdeep in 1:3:6 cement concrete, 20 to 25 mm stone metal, (45 x 45 x 45)cm/ 45cmdia. x 45cm height plinth duly plastered, with necessary curing and finishingcomplete. (for 6m pole) , supplying and erecting g.i. stay set for poles, including loop insulators atinaccessible height with anchor plate 300x300x6 mm., straining screws, g.l. staywire 7/8 swg, g.l. stay rod 20mmx1.8m length and pole cl s duly erected inprovided cement concrete foundation complete. , making cement concrete foundation including excavation (60 x 60 x 150)cmdeep in 1:3:6 cement concrete, (20 to 25) mm stone metal with necessary curingand finishing complete.(for stay). , supplying and erecting porcelain shackle type lt medium insulator 75x115mmdia. with g.l. (shackle) strips, nuts and bolts, complete , supplying & erecting ms pole bracket for guarding/lt oh line, fabricated from angle iron 50x50x6mm and 550mm long for necessary nos. of provided insulators, and erecting on pole with 50x6mm cl complete as per specification no. oh-pl/bkt , supplying & erecting ms pole bracket for lt oh conductor fabricated from65x65x6 mm section, 550mm long for necessary nos. of provided insulatorsand erecting on pole with 50x6mm cl complete as per specification no. ohpl/bkt , supplying and erecting guarding loop using g.l. wire no. 8swg for lt oh lineof horizontal formation erected with 20swg g.l. wire as binding wire and 50mm section on each side complete.