bids are invited for repair, maintenance, and installation of plant/ systems/equipments (version 2) - bsnl te nit no20 providing maintenance to 2x750kva transformer substation faulty 11kv outgoing cable in outdoor yard shelter for metering cubicle repairs to 5hp compress.. - filtration of transformer insulating oil in 2no 750kva transformer including testing of oil for bdv value before and after filtration, including transportation and arranging oil filtration kit machine to the site, submission of filtration certificate etc as required , supplying and topping up of tested quality fresh transformer oil conforming to the relevant is specification suitable for 11kv supply system with relevant test certificate etc as reqd , supplying and filling of fresh silica gel in the breather of the existing 750 kva transformer etc as reqd , providing acsr conductor for replacing the burnt connections on outgoing dp structure in ht yard (about 5mtr) including providing lugs for connections, arranging necessary t&p & specialized manpower, arranging shutdown from bescom, testing, restoration of supply etc as required , supplying and laying one number 3 core 95sqmm pvc insulated and pvc sheathed power cable of 11kv grade on existing structure/in existing pipe/existing trench etc as required , supplying and making indoor cable end termination with heat shrinkable jointing kit complete with all accessories including lugs suitable for 3 core 95sqmm, xlpe aluminium conductor cable of 11 kv grade as required , supplying and making outdoor cable end termination with heat shrinkable jointing kit complete with all accessories including lugs suitable for following size of 3 core95 xlpe aluminium conductor cable of 11 kv grade as required , supplying and fixing suitable ms iron frame work for existing metering cubicle made out of solid angle/flat including cutting, welding, drilling, grouting, painting with suitable colour etc as required , supplying and fixing corrugated, colour coated gi roofing sheet of 24g (nominal) on the existing ms frame, including transportation, cutting to the required size, fixing with suitable hardware etc as required , recovering faulty 11kv cable from ht metering cubicle to dp structure including clearing the metal, excavation in ht yard, dismantling the existing gi pipe for reuse with new cable, refilling the trench, spreading the existing metal complete as required , providing suitable size round/square gi duct made of 24g gi sheet including cutting, bending, providing flanges/gaskets, supports from ceiling etc as required (for ventilation for existing ht panel) , providing opening in the existing masonry brick wall for passage of round/square gi duct (size about 500mmx500mm or 500mm dia) including clearing the debris, plastering, painting, making good the damages complete as required , supplying and fixing 450mm sweep, 900rpm exhaust fan suitable for operation on 230v, 50hz, 1ph ac supply including providing supports, connections from existing point, testing etc as required (m/s havells/crompton or similar superior make) , supply & fixing of analog time switch suitable for operation on 230v, 1ph, 50hz ac supply, with no & nc contacts for the operation of exhaust fans along with 1 no 6a double pole mcb housed in a suitable smc enclosure (approx size 250 x 250 x 150 mm) i/c interconnection, testing etc as reqd. (m/s gic fm1 1ph 1c/o, syntax enclosure or similar superior make) , supplying and drawing 3 core 1.5sqmm pvc insulated pvc sheathed frls unarmoured round cable in existing pvc conduit/casing & capping, including connections, etc as required , supplying and fixing of following sizes of pvc casing and capping with all accessories etc as reqd. (avonplast or ss make) a) 20 x 10mm , dismantling of existing gi pipe from the bore well (both air and water pipe) by arranging specialized labour, arranging t&p including inspection of bore with camera for checking the condition, water level etc as required , repairing of 5 hp compressor pump of m/s elgi make, complete dismantling the pump assembly, replacing the air filter-2no, piston, liner, bearings, gasket set, reassembling, resetting, supplying and filling 20w40 grade oil of specified quantity, including transportation to and fro workshop, connections with existing cables, testing & commissioning etc as required , supplying and lowering of 3/4 dia hdpe pipe of in the existing bore well along with necessary ss end pipes with bolts, nuts, arranging necessary cl s, coupling with the existing gi pipe, arranging specialized t&p for lowering etc as required , repairing of jet nozzle/foot valve for above compressor pump by replacing the damaged spares, testing etc as required