bids are invited for supply retrofitting testing and commissioning of new 216kv 10ka sa for replacement of old sa supply of 216kv, 10ka station medium duty gapless type surge arrester ( polymer type ) with insulating base / adapter frame etc. for retrofitting works complete in all respect. all acessories i.e. surge counter / monitor, connecting lead, terminal connectors suitable with existing acsr zebra conductor, sub-tools to match the height etc. for retrofitting works complete in all respect. supply of 216kv, 10ka station medium duty gapless type surge arrester ( polymer type ) with insulating base / adapter frame, surge counter / monitor, connecting lead, terminal connectors suitable with existing acsr zebra conductor, sub-tools to match the height etc. for retrofitting works complete in all respect. all acessories i.e. surge counter / monitor, connecting lead, terminal connectors suitable with existing acsr zebra conductor, sub-tools to match the height etc. for retrofitting works complete in all respect. dismantling of existing old sa and installation, testing and commissioning of new sa on existing structure complete in all respect. total quantity : 138