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| 1 | Laying of earth mesh electrode of 25/28 mm dia. M.S. rod a depth of 0.80 meters from the top level of foundations, including excavation of pit as required & back filling of the same, transportation of M.S. rod from site store to locations, welding of M.S. rod along with the length at crossing & with earth electrode to 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 meter below top level of foundation (M.S. rod of above sizes & M.S. flat as required shall be made available by RVPN).In case electricity is made avaialble by RVPN Without charges I) Normal Soil |
| 2 | Laying of earthing risers of 50X10 mm /50X12 mm. Size M.S. Flat at a depth of 0.80 meter from top level of foundations, including excavation of trench of required depth & 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 equipment / structure & peaks of 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 surfaces 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 requiredshall be made available by RVPN). In case electricity is made avaialble by RVPN Without charges |
| 3 | Placing / driving of earth electrode of 25/28 mm 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 & 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 meter below top level of foundation (M.S. Rod of above sizes & M.S. Flat as required shall be made available by RVPN) In case electricity is made avaialble by RVPN Without charges |
| 4 | Placing / driving of earth electrode of 25/28 mm dia. M.S. Rod of length 7.30meters (approx.) to a depth of 8.00 meters from the top level of foundations in already bored hole, including back filling of pit with Bentonite Slurry(with cost of Bentonite SLurry),inclusing its preparation,transportation of MS Rod & Bentonite from site store to location, cutting of MS Rod to Desired length welding of earth electrode to earth mesh of MS Rod as per drawing application of itumen compund and covering with bitumen impregnated tape on allwelded joints(MS Rod of above sizes & MS Flat as required shall be made by RVPN) In case electricity is made avaialble by RVPN Without charges |
| 5 | ERECTION OF SUB-STATION STEEL STRUCTURES: Columns, beams, lighting mast & equipment structures (excluding Circuit breakers & Capacitor 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, leveling & 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) |
| 6 | BUS-BAR WORK: Stringing of 220 KV, 132 KV, 33KV, 11KV busbar of ACSR conductor, including transportation of conductor, disc insulators and tension hardware from site store to location, laying and cutting required length of conductor, cleaning and assembly of disc insulators as required along with fitting of bolted type or compression type 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 spacers and spacer T- clamps for twin conductor, for three phases of conductors in each bus- section. I) Any Single Conductor |
| 7 | (ii) Any Double Conductor |
| 8 | Jumpers of ACSR conductor (three 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 store 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 / connectors, dressing, etc. for three phases. I) Any conductor |
| 9 | Stringing of earth wire (size 7/3.15 mm or 7/4.00 mm), including transportation of earth wire, tension hardware etc. from site store to locations, laying and cutting required length of earth wire, 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 earth wire between structure peaks with specified sag and tension, jumpering and connecting earth bonds, for single earth wire. |
| 10 | ERECTION OF SUB STN. EQUIPMENTS: I) Erection of Current Transformer / Potential Transformer / Capacitive Voltage Transformer / Neutral Current Transformer with clamps & connectors on already erected steel structure including transportation from site store to locations, fabrication of base frame, fixing of terminal connectors, tightening of nuts & bolts etc. complete in all respects.(I) 220 KV CT/PT/CVT |
| 11 | (II) 132 KV CT/PT/CVT |
| 12 | Erection of Lightening Arrestor on already erected steel structure including transportation of LA, clamps and connectors, surge counter etc. from site store to location, fabrication of base frame, fixing of terminal connectors, surge counter, tightening of Nuts & Bolts etc. complete in all respect. (I) 220 KV LA |
| 13 | (II) 132 KV LA |
| 14 | Erection of isolators on already erected steel structure including transportation of base frame, PI\"s, contacts, mechanism box, clamps and connectors etc. from site store to locations, minor fabrication as required and fixing of terminal connectors etc., adjustment / alignment of isolator and its earth blade, if provided, for their smooth operation and final adjustment if required after jumpering.(I) 220 KV w/o Earth Blade |
| 15 | (II) 220 KVTandom Isolator |
| 16 | (III) 132 KV without Earth Blade |
| 17 | Erection of 220 KV or 132 KV Circuit Breakers, including transportation of equipment, structure members, nuts & bolts, clamps & connectors, accessories etc. from site store to location, assembly of support structure, their placing on foundation, levelling and preparing for grouting as required but excluding grouting, assembly/placing of support columns/poles, mechanism box / control cubicle and other accessories asper manufacturer\"s drawings, fitting of SF6 gas pipeline, fabrication of air/oil pipeline as required, electrical wiring from pole to control cubicle, fixing of terminal connectors as required, but excluding commissioning of CB for all types of operating mechanism as required. (I) 220 KV |
| 18 | (II) 132 KV |
| 19 | Erection of Post Insulators on already erected structures including transportation of PI s, nuts & bolts, clamps & connectors, etc from site store to locations, fabrication of base frame & assembly if required, fixing of clamps, etc. (I) 220 KV |
| 20 | Erection of 220 KV Class EHV Transformer (Gas Filled tank already placed on foundation with wheels), including transportation of accessories from site store to locations, erection of HV, LV, & Neutral bushings, main & OLTC conservators, radiators, equalizing pipe line, marshalling kiosk, etc. as per manufacturer\"s drawing, preparation of oil, oil filling, dehydration of transformer (filter machine , oil tank & operating staff shall be provided by RVPN), electrical wiring from individual equipment , e.g. Buchholz relay, MOG, OSR , etc. to marshalling koisk, etc. but excluding testing & commiussioning of transformer.I) Transformers received Gas filled |
| 21 | Erection of Control & Relay Panels complete in all respects including transportation from site store to controlroom, placing on foundation / cable trench as per layout, interconnection between control & relay panels and with existing panels, fixing of side/top covers and doors, earthing to existing earth strip in control room, connection of bus wiring to existing panel and between control & relay panel as required.(I) Duplex Panel |
| 22 | (II) Simplex Panel, DC Panel, RTCC Panel |
| 23 | Erection of Marshalling Kiosk / Line Matching Unit (LMU) / Line Matching & Distribution Unit (LMDU) complete in all respect including transportation from site store to location, placing on foundation / cable trench as per layout, preparing for grouting of foundation bolts but excluding grouting etc.(I) 220/132 KV Marshalling Kiosk |
| 24 | LAYING & TERMINATION OF CABLES: Control Cablesi) Laying of PVC insulated unarmoured / armoured control cables of 1.1 KV grade with copper conductor in cable trenches as per specification as required, including transportation of cable drums from site store to locations, laying in cable trenches, cutting to required length, placing them on cable racks / cable trays / cable batten & dressing, including removing and re-fixing trench covers as required, making necessary connections, testing, cable marking on both the terminating ends, etc. as required for all sizes from 2c x 2.5 sq.mm. to 20c x 2.5 sq.mm. , 4c x 4 sq.mm. & 4c x 6 sq.mm. a) Unarmoured control cable |
| 25 | ii) Fixing of control cables in position with single compression nickel plated brass cable glands confirming to IS: 12943 & having three metal washers and one rubber ring, including preparation of cable and drilling of corresponding holes in gland plates, etc. as required & including cost of cable glands, for each cable gland of size. a) 19 mm unarmoured control cable |
| 26 | b) 25 mm unarmoured control cable |
| 27 | c) 32 mm unarmoured control cable |
| 28 | iii) Termination of wires of cables with copper conductor using copper terminal ends (pin or ring type as required of Dowell\"s or equivalent make as approved by the Engineer - in charge) duly dripped with crimping tool, including making wire ends ready for crimping, ferruling & dressing of wires, etc. as required, including cost of terminal ends for all wires, for each cable at both ends for cables of the following sizes.a) 2.5 Sq. mm for any No. of Core |
| 29 | b) 4 Sq. mm for any No. of Core |
