supply of portable earthing / discharge rod at 220 kv s / s sarojininagar, lucknow , portable discharge earthing rod of f-class insulation suitable for working on transmission network having system voltage 400 kv / 220 kv / 132 kv ( cpri type tested ) with total length of 7 . 20 meter & consisting of following items in each set . ( a ) earthing pole in 4 sections of length 1 . 8 mtr . duly made of frp . the dia of all 4 poles will be 50mm . & inner dia 45mm , shall be connected with overlapping with inner frp pipe between two section . ( b ) spring loaded type line earthing clamp made of electrolytic cooper duly chrome pated & other parts such as nut , bolts & washer shall be made of stainless steel suitable for acsr moose / zebra / panther & fitted on top section of the earthing pole . ( c ) earhting cable 25 meter long duly made of pvc insulated 35mm sq . size multy strands flexible copper cable with lugs etc . pressed at both end fitting with earhting pad . ( d ) canvas carry bag for the above .