bids are invited for ladder ( 20 feet ) - fiber glass wall supporting ladder ( fire bridge type ) of 20 feet height with steps of fiber glass tube covered aluminium pipe and heavy duty safety lock, pully, rope etc. , ladder ( 36 feet ) - fiber glass wall supported extension ladder ( fire bridge type ) of extended height 36 feet and closed height 20 feet with steps of fiber glass tube covered aluminium pipe and heavy duty safety lock, pulley, rope etc. , discharge rod - portable earthing / discharge rod of f class fiber insulation suitable for working on transmission network having system voltage upto 245 k.v. with total length of 7.20 meter and consisting of following items in each set :- ( a ) earthing pole in 4 sections each of length 1.80 meter duly made of epoxy bounded glass fiber; ( b ) line and earthing clamp duly made of aluminium alloy suitable for taratulla / moose / zebra / panther conductor and fitted on top section of the earthing pole. ( c ) earthing cable 12 meter long duly made of transparent pvc insulated 10 mm2 size multi strand flexible copper cable, one end fitted with line end earthing clamps and other end fitted with earthing pad. ( d ) canvas carry bag for above. total quantity : 1