SERVICES FOR INSTALLATION OF 220 AND 132 KV TRANSFORMERS OF VARIOUS CAPACITIES ALONG WITH ASSOCIATED WORKS OF OIL FILTRATION DISMANTLING ETC AT VARIOUS SUBSTATIONS UNDER TNC SIROHI CIRCLE

EARTH MESH WORK Laying of earth mesh with 25mm / 28mm dia M.S Rod at a depth of 0.80 meter 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 impreganated tape on all welding joints, for the type of soil prevalent at 0.80 mete below top level of foundations (M.S Rod of above size & 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 metre 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 location preparation of risers, bending as per requirement (after heating if necessary), fixing on and welding/bolting to equipment/ structure abd oeajs if structures, laying in the trench, welding to the earth mesh of M.S. Rod as per drawing including welding of extra length of M.S.Flat if 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 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

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 foundation 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 meters below top level foundations (M.S.Rod of above sizes & M.S.Flat as required shall be made availa-ble 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, fxinmg of template, with foundation bolts as required, levelling and preparing for grounding as required but excluding grouting erection after grouting and tightening & punching of nuts & bolts. ( Maximum height of structures upto 20 meters).

BUS - BAR WORK BUS-BAR WORK: STRINGING of 220KV,132KV, 33KV & 11KV Bus Bar of ACSR & Tarantulla conductor, including transportation of conductor,disc Insulator and tension hardware from site stores to location laying And cutting required length of conductor, cleaning and assemblyof disc insulators as required along with fitting of bolted type or compression tape tension hardware as made available (compression machine shall be provided by RVPN on rent free basis) making up at one end, stringing of conductors between the beams with specified sag and tension, also equalizing sag and fitting spacer T-Clamps for twin conductor for three plates of conductors in each bus section. (Per Jumper basis) i) Any Single Conductor

BUS - BAR WORK BUS-BAR WORK: STRINGING of 220KV,132KV, 33KV & 11KV Bus Bar of ACSR & Tarantulla conductor, including transportation of conductor,disc Insulator and tension hardware from site stores to location laying And cutting required length of conductor, cleaning and assemblyof disc insulators as required along with fitting of bolted type or compression tape tension hardware as made available (compression machine shall be provided by RVPN on rent free basis) making up at one end, stringing of conductors between the beams with specified sag and tension, also equalizing sag and fitting spacer T-Clamps for twin conductor for three plates of conductors in each bus section. (Per Jumper basis) i) Any Double Conductor

JJUMPERS OF ACSR conductor ( 3 nos Y- type)between bus To equipment or between equipment to equipment or between 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 hard- ware and erection as required, cutting required length of conductor making connections, fixing of spacers & spacer T-Clamps as required, tightening of clamps/connectors, dressing etc, for three phases. (Per Jumper basis) i) Any Conductor

STRINGING of Earth wire(size 7/3.15 mm or 7/4.00mm) Including transportation of earthwire, tension hardwares Etc.from site store to locations laying and cutting required Length of earthwire,fitting of bolted type or compression Type hardware as made available (compression machine Shall be provided by RVPN on rent free basis) making up at One end stringing of earthwire between structure peaks with Specified sag and tension, jumpering and connecting earth Bonds, for single earthwire.

ERECTION OF SUB-STATION EQUIPMENTS Erection of Current Transformer/Potential Transformer/ Capactive voltage Transformer /Series Reactor /Residual Voltage Transformer /Neutral Current Transformer with Clamps & connectors, on already erected steel structure including transport-Tation of base frame,fixing of terminal connectors,tightening of nuts & bolts etc. complete in all respect. i) 33KV or 11KV CT/PT

ERECTION OF SUB-STATION EQUIPMENTS Erection of Current Transformer/Potential Transformer/ Capactive voltage Transformer /Series Reactor /Residual Voltage Transformer /Neutral Current Transformer with Clamps & connectors, on already erected steel structure including transport-Tation of base frame,fixing of terminal connectors,tightening of nuts & bolts etc. complete in all respect. ii) 132KV CT/PT/CVT