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Tender For Erection Of 220/132 Kv 200 Mva Transformer And Associated Work At 220 Kv Gss Bilara, Distt. Jodhpur On Labour Contract Basis - 1 EARTH MESH WORK 2 Laying of earth mesh with 25mm/28mm dia ,M.S. Rod at depth Of 0.80 metre from top of foundation including excavation of trench of required depth and backfiling of the same transportation of M.S.Rods from site store to locations, welding of 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 required shall be made available by RVPN) 3 a)In case electricity is made available by RVPN withoutcharges 4 i) Any soil,soft rock other than hard rock 5 Laying of earthing risers of 50x6mm/50x10mm/50x12mm sizeM.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 locationpreparation of risers, bending as per requirement (after heatingif necessary), fixing on and welding/bolting to equipment/ structure abd oeajs if structures, laying in the trench, weldingto 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 allwelded 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) 6 (a) In case electricity is made available by RVPN without charges. 7 i) Any soil,soft rock other than hard rock 8 Placing/Drivingof 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 storeto locations, cutting of M.S.Rod to desired length preparation of one end as spike if necessary,welding of earth electrode to earthmesh of M.S. Rod as per drawing, application of bitumen compound and covering with bitumen impregnated tape on all welded jointsfor 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 available by RVPN) 9 (a) In case electricity is made available by RVPN without charges. 10 i) Any soil,soft rock other than hard rock 11 ERECTION OF SUB-STATION STEEL STRUCTURES columns, beams, lighting mast and equipment structures (excluding Circuit Breakers and 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, fixing of template,. with foundation bolts as required leveling and preparing for grouting asrequired, but excluding grouting, erection after grouting and tightening & punching of nuts & bolts. (Maximum height of structures up to 20 meters) 12 BUS-BAR WORK: 13 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 assembly of disc insulators as required along with fitting of bolted type orcompression tape tension hardware as made available, making up at one end, stringing of conductor between the beam with specific sag and tension, also equalizing sag and fitting spacers and spacer T-clamps for twin conductor, for three phase of conductor in each bus-section. 14 ii) Any Double Conductor 15 JUMPERS OF ACSR 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 asrequired, tightening of clamps / connectors, dressing etc, for three phases (Per jumper basis). 16 i) Any Conductor 17 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 transportation fro site store to location, fabrication of base frame, fixing of terminal connectors, tightening of nuts& bolts etc. complete in all respect. 18 i) 220 KV CT / PT / CVT 19 ii) 132 KV CT / PT / CVT 20 Erection of Isolators (Motorises / Non motorised) on already erected steel structure including transportation of base frame, P I contacts, mechanism box, clamps & 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 including erection of post insulators (P I) 21 i) 220 KV 22 a) Without Earth Blade 23 d) Tandom 24 ii) 132 KV 25 a) Without Earth Blade 26 d) Tandom 27 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 colums / poles, mechanism box / control cubicle and other accessories as per manufacturer’s drawings, fitting of SF-6 gas pipeline, fabrication of air / oil pipeline as required, electrical wiring from pole to control cubicle, fixing of terminalconnectors as required, but excluding commissioning of CB, for all types of operating mechanism, as required. 28 i) 220 KV 29 ii) 132 KV 30 Erection of Post Insulators on already erected structures includingTransportation of P.I’s nuts & bolts, clamps & connectors etc.fromSite store to locations, fabrication of base frame & assembly if Required, fixing of clamps, etc. 31 i) 220 KV 32 ii) 132 KV 33 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, IV, LV & Neutral bushings, erection of cooler bank with associated pipe line, radiators, fans, pump, main & OLTC conservators, equalizing pipe line, marshalling kiosk, etc. as per manufacturers drawing, preparation of oil, oil filling, dehydration of transformer along with cooler bank & diverter switch (filter machine, oil tank & operating staff shall be provided by RVPN), electrical wiring from individual equipment, e.g., Buchholz relay, MOLG, OSR, Fans, Pumps, Bushing CTs etc. to marshalling kiosk, etc., but excluding testing & comrnissioninq of transformer 34 a) If electricity is available & arranged by RVPN without charges. 35 Erection of Control & Relay Panels complete in all respect including transportation from site store to control room, placing on foundation / cable trench as per layout, interconnection betweenControl & Relay panels and with existing panels fixing of site / top covers and doors earthing to existing earth strip in control room, connection of bus wiring to existing panel and between control room and relay panel as required. 36 ii) Duplex Panel 37 iii)Simplex Panel, DC Panel,RTCC Panel,PLCC Panel,etc. 38 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 onFoundation / cable trench as per layout, preparing for grouting of foundation bolts but excluding grouting etc. 39 i) 220 KV or 132 KV Marshalling Kiosk 40 LAYING AND TERMINATION OF CABLES 41 Control Cable: 42 i) Laying of P.V.C insulated unarmoured / armoured controlcable of 1.1 KV grade with copper conductor in cable trenches as per specification as required, including transportation of cabledrums 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 x2.5 sq.mm to 20c x 2.5 sq.mm, 4c x 4 sq.mm and 4c x 6 sq.mm. 43 a) Unarmoured control cable. 44 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. 45 a) 19 mm unarmoured control cable 46 c) 25 mm unarmoured control cable 47 e)32mm unarmoured control cable 48 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 crimped 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 atboth ends for cables of the following sizes. 49 a) 2.5 Sq.mm for any number of core 50 b) 4 Sq.mm for any number of core
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