Construction work of 132KV GSS at Nasirda along with oil filteration and P n F of yard light

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 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 (ii) Hard Rock with Blasting subject to permission or without Blasting

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

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 (ii) Hard rock (with blasting subject to permission or without blasting)

Placing of earth electrods of 25/28mm dia M.S Rod of length 7.50 meters (approx) to a depth of 8.00 meters from the top level of foundations, including drilling of 200 mm dia earth pit having a throughout bore of 200 mm dia to a depth of 8.00 meters from the top level of the foundations in all types of rocks by DTH system and overburden, including back filling of pit with Bentonitc slurry (with cost of Bentonite slurry ), including its preparation, transportation of M.S Rod and Bentonite from site store to location, cutting of M.S Rod Rod to desired length 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 (M.S Rod of above sizes & M.S Flat as required shall be made available by RVPN) (i) In case electricity is made available by RVPN without charges.

ERECTION OF SUB-STATION STEEL STRUCTURES columns, Beams ,lighting mast and equipment structures (excluding Circuit Breakers and nuts & bolts, washers etc from site store to locations Their assembly, placing on foundation, fixing of template, with Foundation, fixing of template,. with foundation bolts as required Leveling and preparing for grouting as required but excluding Grouting, erection after grouting and tightening & punching of nuts & bolts. (Maximum height of structures up to 20 meters)

BUS - BAR WORK STRINGING of 220KV,132KV, 33KV & 11KV Bus Bar of ACSR 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 STRINGING of 220KV,132KV, 33KV & 11KV Bus Bar of ACSR 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) ii) Any double Conductor

JUMPERS 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.