bids are invited for direct lightning strike protection device , mounting kit and fixing accessories for lightning arrestor , digital lightning event counter , 70 sqmm copper flexible down conductor , 54 mm dia, 1.6t, 9 meter deep driven copper earthing system , 54 mm dia, 1.6t, 3 meter deep driven copper earthing system , transient earth bonding unit , 340ka 3 phase surge diverter in ip55 metal enclosure , 32 amp 1 phase series power filter in ip55 grade power coated metal enclosure , 40 amp 1 phase series power filter in ip55 grade power coated metal enclose , 120ka, mil std digital grounding system single phase 2 wire , mil std 48 vdc equipment protection device , 10 pair multi stage telephone line protection module , rj 45 patch panel protection system 24 port , coaxial surge protection module n type m f , equipment bonding wire with lugs and accessories of 16 sq mm , equipment bonding wire with lugs and accessories of 10 sq mm , installation and commissioning charges of lightning arrester project - procurement of lightning arrester system - total quantity : 476