Construction of 132KV GSS RVPN Tehroli

EARTH MESH WORK Laying of earth mesh with 25mm I 28mm dia. M.S. Rod at a depth of 0.80 metre from top level of foundations, including excavation of trench of required depth and backfilling of the same, transportation of M. S. Rods from site store to locations, welding of M. S. Rod to M. S. Rod along the length, at crossings and with earth electrodes as per drawing, application of bitumen compound and covering with bitumen impregnated tape on all welded joints, for the type of soil prevalent at 0.80 metre below top level of foundations (M. S. Rod of above sizes & M. S. Flat as required shall be made available by RVPN). (a) In case electricity is made available by RVPN without charges i) Any soil, soft rock other than hard rock

Laying of earthing risers of 50x6mm/50x10mm/50x12mm size M.S Flat at a depth of 0.80 m,eters from top level of foundations, including excavation of trench of required depth and backfilling of the same, transportation of M.S Flat from site store to locations, preparation of risers bending as per requirement ( after heating if necessary), fixing on and welding / bolting to equiopment/ structure and peaks of structures, laying in the trench, welding to the earth mesh of M.S Rods as per drawing, including welding of extra length of M.S Flat of required, application of bitumen compound and covering with bitumen impregnated tape on all welded joints, painting of all surface of risers above ground level with red oxide and green paint, for the type of soil prevalent at 0.80 meter below top level of foundations ( M.S Rod of above sizes & M.S Flat as required shall be made available by RVPN) (a) In case electricity is made available by RVPN without charges i) Any soil, soft rock other than hard rock

Placing / Driving of earth electrode of 25 / 28mm dia. M. S. Rod of length 3.30 meters (approx.) to a depth of 3.80 meters from the top level of foundations, including excavation of pit as required and back filling of the same, transportation of M. S. Rod from site store to locations, cutting of M. S. Rod to desired length, preparation of one end as spike if necessary, welding of earth electrode to earth mesh of M. S. Rod as per drawing, application of bitumen compound and covering with bitumen impregnated tape on all welded joints, for the type of soil prevalent at 3.80 metres below top level of foundations (M. S. Rod of above sizes & M. S. Flat as required shall be made available by RVPN). (a) In case electricity is made available by RVPN without charges. i) Any soil,soft rock other than hard rock

ERECTION OF SUB STATION STEEL STRUCTURES columns, beams lighting mast and equiopemtn structures ( excluding Circuit Breakers and Capacitors Banks ) of all types including transportation of structure members nuts & bolts, washers etc from site store to locations , their assembly, placing on foundation, fixing of template, with foundation bolts as required, levelling and preparing for grouting as required but excluding grouting, erection after grouting and tightening & punching of nuts & bolts. ( Maximum height of structures upto 20 meters.

Any Single Conductor

Any Double Conductor

JUMPERS of any conductor (3 nos. Y- type) between bus to equipment, or between equipment to equipment or between bus to bus, including transportation of conductor, disc insulators and hardware from site stores to locations, cleaning and assembly of disc insulators as required along with fitting of suspension hardware and erection as required, cutting required length of conductor, making connections, fixing of spacers & spacer T-clamps as required, tightening of clamps 1connectors, dressing, etc., for three phases. (Per jumper basis) Any Conductor

STRINGING OF Earth wire ( suze 7/3.15mm or 7/4.00mm ), including transportation of eathwire, tension hardwares, etc from site store to locations lasying and cutting required length of earthwire, fitting of bolted type or compression type hardware as made available ( comppression machine shall be provided by RVPN on rent free basis), making up at one end stringing of earthware between structure peaks with specified sag and tension, jumpering and connecting earth bonds for single earth wire.

EARCTION OF SUB-STATION EQUIPMENTS I) Erection of 33/0.4 KV Station transformer upto 500 KVA on existing masonary platform including transportation of transformer & accessories from site store to location erection of Horn Gap fuse set jumpering from isolator to Horn Gap to transformer.