bids are invited for repair, maintenance, and installation of plant/ systems/equipments (version 2) - bsnl exchange; electrical system or installation; service provider - attending fault at te kumaraswamy layout on emergency basis as the existing 200a 4pole onload changeover switch became faulty. the work involves engaging 01electrician and 01helper i/c transportation to the site along with tools and measuring instruments, dismantling of all the burnt cabling and bypassing the changeover switch temporarily to restore the telephone exchange complete etc., as required. , sitc of 1no. 200a 4pole onload changeover switch suitable for 3ph, 415volts, 50hz ac supply by dismantling and removing the existing old and faulty changeover switch along with the cabling, fixing the new changeover switch, retermination of the cable and connecting to the new changeover switch for eb and dg changeover, testing, commissioning etc., complete as required. (make: hpl socomec or similar superior make)