bids are invited for lightening protection system at kolkata terminal ii 500 mm air terminatination g28ff2 g28 , 700 mm air termination rod. diam 8 mm , clamps to hold air termination rod , roof conductor , conductor holder for parapet wall side w , conductor holder with a slotted saddle c , adhesive metal to metal , metal metal adhsv dispenser , universal connector of material stst , connection clamps for steel metal column , down conductor of diam 8 mm , antenna pipe clamp according to din en 6 , lightning strike counter , uni disconnecting clamps , gi flat 25x6mm strip having width 25mm , gi strip holder of material- gi , copper bonded rod with low carbon steel , 20 kg backfilled compound , stst 316 grade clamp , poly plastic pit cover of material , anti-corrosion tape , lightning current and surge protection dev , lightnng crrnt and surge protectn n pe , modular combined lightning current and s , modular 2-pole type 2 surge protection d , modular surge arretser for 24 volt signa , surge arrester for field devices to prot , digital motor protection relays circuit breakers with integral overcurrent protection total quantity : 2906