Construction Of 66 Kv Ais Substation Mussimble, Yamuna Nagar With 2X25/31.5 Mva 66/11 Kv Power T/Fs And 66 Kv Ais Substation Sadopur, Ambala With 2 X 25/31.5 Mva 66/11 Kv T/Fs On Turnkey Basis-- 1 25/31.5 MVA 66/11 kV T/Fs 2 66 kV SF-6 Breaker along with 20% extra SF-6 Gas 3 66 kV Isolator with E/Switch 4 66 kV Isolator without E/Switch 5 66 kV Surge Arrestor 6 66 kV CTs for Line & Bus Coupler (600-300-150/1-1-1A) 7 66 kV T/F CT (300-200-150/0.577-1-1A) 8 66 kV PT for line 9 66 kV NCT (300-200-150/1A) 10 11 kV NCT (1800-900/5A) 11 11 kV LA 12 11 kV 15 Panel Board 2000A (including one no. bus sectionalizer panel) 13 66kV C&R Panels with SAS:a) Bus Coupler Protection and Circuit Breaker Panel (Without Auto Reclose)with SAS compliant 14 b) Line Protection and Circuit Breaker Panel (Without Auto Reclose) with SAS 15 c) Line Protection and Circuit Breaker Panel without Auto Reclose (SAS Compliant) with Line Current Differential-cum-Distance Protection Relay (for 66 kV D/C Dhulkote-Sadopur Lines) 16 d) Line Protection and Circuit Breaker Panel without Auto Reclose (SAS Compliant) with Distance Protection Relay (for 66 kV S/C Layalpur Basti-Sadopur Lines) 17 e) Transformer Protection and Circuit Breaker Panel (Without Auto Reclose)with SAS compliant 18 9000 KVAR 12.65 kV Automatically Switched Capacitor Bank along with allied equipments as per technical specification. 19 220V 100AH Battery San Tubular 20 220 V 20/30A Battery charger (SMPS) 21 220V D.C.D.B. 22 415 V LT AC Distribution Board 300 A 23 11/0.4 kV Station T/F 200 KVA 24 (a) 1.1 kV Copper Control Cable unarmoured for 66kV bays of size 7Cx4mm2, 4Cx4mm2, 2Cx4mm2, 2Cx6mm2, 3Cx2.5mm2, 16Cx2.5mm2, 10Cx2.5mm2 & 7Cx2.5mm2 including junction box etc. refer Section-5 of copper & control cable & Section-7 for switchyard erection 25 (b) Stainless steel MK (200 TB) 26 a) 11 kV Aluminium Power Cable XLPE 1C x1000mm2 for T/F to 11kV incomer (4 runs per phase for each transformerallocating them 2 runs per phase for each 11kV I/C) 27 b) Termination kit at both ends for 11kV XLPE power Cable (1C x 1000mm2) Termination Kits for (Indoor/Outdoor) both ends along with accessories constitute a set for each cable. 28 a) 11 kV Aluminium Power Cable XLPE 3C x 400sq mm for Capacitor Bank 29 b) Termination kit at both ends for 11kV XLPE power Cable (3C x 400mm2) Termination Kits for (Indoor/Outdoor) both ends along with accessories constitute a set for each cable. 30 a) 11 kV Aluminium Power Cable XLPE 3C x 50 sq. mm for station T/F 31 b) Termination kit at both ends for 11kV XLPE power Cable (3C x 50mm2) Termination Kits for (Indoor/Outdoor) both ends along with accessories constitute a set for each cable. 32 650/1100 Volts 3.5 core 240 mm2 aluminium power cable from Aux. T/F to ACDB. 33 650/1100 Volt 3.5 core 70 mm2 aluminium cable for oil filtration set. 34 650/1100 Volt 4core 16mm2 unarmoured with copper power cable for MLDB and other cable required as per contract for 66kV bays. 35 Earthing Mat Material. The earth mat will be designed/quoted for soil resistivity of 50Ωm. In case soil resistivity is more than 50Ωm then the earth mat will be designed for actual soil resistivity. The payment of extra material to be used for earth mat shall be made on pro rata basis. The approximate area of earth mat to be laid is given in the corresponding columns of the substations. However, item will remain a Lot item (calculations may be made considering fault/shock duration of 1 sec).(7400 sq. meter for Mussimble & 5900 sq. meter for Sadopur) 36 Fire Fighting equipments as per section-6:i) 22.5 Kg Capacity FE CO2 type, Trolley Mounted 37 ii) 25 Kg Capacity FE DCP type, Trolley Mounted 38 iii) DCP 10 Kg Capacity, Wall mounted 39 iv) FE CO2 6.5 Kg Capacity, Wall mounted 40 v) DCP 5 Kg Capacity, Wall mounted 41 vi) Foam Type 9 Litre Capacity, Wall mounted 42 vii) Water CO2 9 Litre, Wall mounted 43 viii) Fire Buckets (12 Nos. with stand in one set) 44 Complete lightning of control room building, switch yard area, road and street as per section-7 of the specification:a) Supply and installation of 2 fittings of 240W LED lamps with all accessories for Complete lighting of outdoor Switch yard area as per clause 16.0 of section 7 of the specifications. 45 b) Supply and installation of 35W LED tube on tubular steel poles along with the boundary wall at a distance of 30 meter as per as per clause 16.0 of section 7 of the specification 46 c) Complete lighting of road and street by providing 90W LED lamps on tubular steel poles at a distance of 15meter along the roads and streets as per as per clause 16.0 of section 7 of the specification. 47 d) Supply and installation of post top lantern 40W LED Lamps with all complete accessories at the entrance gate of sub-station. 48 e) Supply and installation of 40W LED Lamps with all complete accessories on corners of control room building. 49 Complete Substation automation system of 66/11kV substations including hardware (along with transducers) & software along with associated equipment for the bays (bay as defined in the technical specification, sec-substation automation system) as per technical specification.66 kV Mussimble Present FutureSr. No.DescriptionNo. of 66 kV Bays1. T/F2 12.Line 223. B/C 1-66kV SadopurNo. of 66 kV Bays Sr. No.DescriptionPresent Future1. T/F 2 6*2.Line3 3. B/C 1 * As per space available in GELO. Accordingly, provision shall be made in SAS to accommodate future scope along with present scope. Note: signals from protection relays in 11 kV incomer would also be wired to substation automation system (SAS) 50 Time synchronization equipment 51 High wall type split AC unit of 2 Ton capacity for SCADA room & C&R Panel room (as per technical specification). 52 Computer system (SFF) with: Intel core i5 processor with 11th generation or higher as specified in Section-04 53 Multi-Function Monochromatic Laser Jet Machine (A4-25 PPM or more) with print copy and scan function, Duplexing feature, composite cartridge, ADF, A4 or larger flatbed size, Networking and wi-fi both, at least 1 input tray, 3 years on site OEM warranty 54 BOM FOR SAMAST COMPLIANT IEM (ON SEPARATE CUBICLE) FOR 11KV I/C:1 (a) 3P4W Interface Energy Meters (ABT Type) 0.2s Class 1A with TTB & BCS (2 No. for each 11 kV Incomer) 55 1 (b) Testing of IEM System from NABL accredited lab 56 2. Wired Indoor Meters Panel suitable for 8 meters 57 3. 16 P Industrial Grade un-managed Network switch 58 4 (a) Data concentrator unit (DCU)/communication Gateway (IG) with dual SIM Modern alongwith enclosure and accessories 59 4 (b) 3C x 2.5 sq. mm Un-armoured cable for DCU and Switches 60 5. Cat-6 cable-unshielded 61 6. PVC conduit pipe-3/4 with accessories for Cat-6 cable (In line with cat-6 cable) 62 7. Armored Fibre Optic Cable (2 pair) 63 8. HDPE conduit - 40/33 with accessories (In line with armored cable for CT/PT) 64 9. 4Cx4 Sqmm armoured cable for PT 65 10.4Cx4 Sqmm armoured cable for CT 66 48V 120AH Battery Bank San Tubular 67 48V SMPS Battery Charger (for 48 V 120 AH Battery Bank San Tubular Battery) 68 For 220 kV Substation, BBMB, Dhulkote: 1. The supply of Numerical Line Current Differential-cum- Back up Distance Protection Relay for C&R Panels (non-SAS compliant)installed at 220 kV Substation, BBMB, Dhulkote (for 66 kV D/C Dhulkote - Saddopur Lines). 69 2. The erection/ retrofitting, testing & commissioning of Numerical Line Current Differential-cum- Back up Distance Protection Relay in place of existing Distance Protection Relay on the existing C&R Panels (non-SAS compliant) above at sr. no. 68 installed at 220 kV Substation, BBMB, Dhulkote (for 66 kV D/C Dhulkote - Saddopur Lines) shall be the part of scope of successful bidder. 70 Bolted type 11kV tension string assembly with 3 numbers Anti FOG type disc insulators (E&M strength 9000 kg) per string with all hardware accessories including ball & socket connections and tension clamp sets suitable for twin tarantulla conductor. Alternatively the bidder may quote silicon polymer composite insulator string in place of Disc Insulators 71 66 kV Bolted type tension string assembly with 6 numbers Anti FOG type disc insulators (E&M strength 9000 kg) per string with all hardware accessories including ball & socket connection and tension clamp set suitable for single zebra conductor. Alternatively the bidder may quote silicon polymer composite insulator string in place of Disc Insulators 72 66 kV Bolted type tension string assembly with 6 numbers Anti FOG type disc insulators (E&M strength 9000 kg) per string with all hardware accessories including ball & socket connection and tension clamp set suitable for twin zebra conductor. Alternatively the bidder may quote silicon polymer composite insulator string in place of Disc Insulators 73 66 kV bolted type suspension string assembly with 5 numbers Anti FOG type disc insulators (E&M strength 9000 kg) per string with all hardware accessories including ball & socket connections and suspension clamp set suitable for single zebra conductor. Alternatively the bidder may quote silicon polymer composite insulator string in place of Disc Insulators 74 66 kV bolted type suspension string assembly with 5 numbers Anti FOG type disc insulators (E&M strength 9000 kg) per string with all hardware accessories including ball & socket connections and suspension clamp set suitable for twin zebra conductor. Alternatively the bidder may quote silicon polymer composite insulator string in place of Disc Insulators 75 Boltless C-Type Wedge connectors matching with conductor size. 76 Copper lugs glands, PVC ferrules for control cabling. 77 Fiber cleats, Aluminium clamps, bolts, nuts, washers etc., for fixing control cables in trenches. 78 Galvanized iron perforated tray with side coupler plate bolts, nuts, washers and clamps etc. of size 75x25x2 mm, 150x25x2mm, 100x25x2mm etc. & G.I. Conduits of 50mm/100mm dia from equipment to main trench as per Section-7, Switchyard erection. 79 ACSR Zebra Conductor (approx.) 80 AAC Twin Tarantulla Conductor (approx.) 81 7/3.15 GS Earth wire 82 Spacers for TwinTarantulla/ZebraConductor 83 U-bolt 20mm dia. 84 Mandatory spares for hardware/mechanical/Electrical auxiliaries to be supplied. 10 % of the finally approved quantities for item mentioned from Sr. No. 70 to 74. 85 2.5 ″ dia HDD/PVC pipe for 4c x 4 mm2 c/cable from CT, VT to maintaining system as per sec-5, chapter-5. 86 Item for associated structure workA)‘‘Lattice type steel structure for 66kV AIS Mussimble (Yamuna Nagar) & Sadopur (Ambala), Supply of material, preparation of fabrication drawing, galvanizing and delivery of lattice type steel structure for tower and beams for 66/11KV switchyard fabricated from steel conforming to IS: 2062 including nuts-bolts gusset plates foundation bolts and other accessories as per drawings supplied by the owner.66kV Cable support structure of galvanized iron along with foundation to be designed by bidder as per site requirement/size of cableMain S/Stn. tower and beam:a)Tower type CT-4 87 b) Tower type CT-5 88 c) Tower type CT-6 89 d) Tower type CT-8 90 e) Beam type CB-6 91 f) Beam type CB-7 92 g) Tower type DT-2 93 h) Tower type DT-3 94 i) Beam type DB-2X 95 B) Equipment Structure:a) 66 kV CT Drg. No. HTD/ST-88R 96 b) 66 kV NCT Drg. No. HTD/ST-145 (if required ) 97 c) 66 kV PT Drg. No. HHW/ST-66 98 d) 66 kV Surge Arrestor Drg. No. HTD/ST-89 99 e) 66 kV Isolator Drg. No. HTD/ST-87R 100 f) 66 kV L&E Switch Drg. HTD/ST-87R 101 g) 11 kV NCT Drg. HTD/ST-149 (if combined structure used) or 11 kV NCT Drg. HTD/ST-88R (if required). 102 1. EARTH WORK 1.1 Earth filling with good earth (as per satisfaction of Executive Engineer/Civil Works Division), laying in layers (as per specification), dressing, including carriage, irrespective of lead, loading, unloading, watering and compaction in layers with roller including compensation of earth complete in all respect. 103 1.2 DewateringDewatering of subsoil water for lowering of water table to enable excavation of earth, concreting for all type of works and backfilling, by boring of tube wells or deploying well point system so that continuous lowering of water table is made till completion of work, without disturbing the soil characteristics. The rate shall include all type of expenditure for required dewatering arrangements. 104 2. FOUNDATIONSWORK FOR 66 KV MUSSIMBLE:Supply of labour, T&P, material and construction of RCC footings & pedestals etc. for steel gantry and equipment structures complete in all respects as per HVPNL standard drawing, technical specifications including cost of excavation, concreting, cement, reinforcement steel, form work, grouting, holding down bolts, backfilling etc.and other items not mentioned herein but required for the completion of work.A. GANTRY TOWERS i) CT-4 105 ii) CT-5 106 iii) CT-6 107 iv) CT-8 108 v) DT-2 109 vi) DT-3 110 B. EQUIPMENT 66kV sidei) 66KV LA 111 ii) 66KV CVT/PT 112 iii) 66KV CT 113 iv) 66kV L&E & Isolator 114 v)66kV NCT 115 11kV sidei) 11kV NCT 116 3. FOUNDATIONS WORK FOR 66 KV SADOPUR:Design engineering & supply of labour, T&P, material and construction of RCC footings & pedestals etc. for steel gantry and equipment structures complete in all respects as per technical specifications & approved drawings including cost of excavation, concreting, cement, reinforcement steel, form work, grouting, holding down bolts, backfilling etc.and other items not mentioned herein but required for the completion of work.The successful bidder shall develop the designs & drawings as per the soil investigation report attached in specification and shall get these checked/vetted from any professsional institute as per contract before final approval.A. GANTRY TOWERS i) CT-4 117 ii) CT-5 118 iii) CT-6 119 iv) CT-8 120 v) DT-2 121 vi) DT-3 122 B. EQUIPMENT 66kV sidei) 66KV LA 123 ii) 66KV CVT/PT 124 iii) 66KV CT 125 iv) 66kV L&E & Isolator 126 v)66kV NCT 127 11kV sidei) 11kV NCT 128 4. BREAKER FOUNDATIONDesign, engineering, supply of labour, material, equipment & const. of foundations for breaker including all associated works PCC, RCC, structural steel, steel reinforcement & any other item not specifically mentioned herein but reqd. for completion of work as per tech. spec.i) 66 kV Breaker Foundation 129 5. RoadsSupply of labour, material and construction of cement concrete roads and walkways/shoulders from NH/SH/etc. to Switch yard/Switch house building as per GELO/CLO as per sectional detail drawing no. HCD/SK-181 R1 and technical specification.i. 6.0m wide road (Near main gate of substation) 130 ii. 3.66 wide road 131 6. CAPACITOR BANK FOUNDATIONSDesign, Engg. & supply of labour, material & construction of foundations for capacitor bank with capacitor unit (with allied equipments) & series Reactor etc. including chain link fencing 1.8M height around cap. bank complete in all respect including any other items not specifically mentioned herein but required for completion of job as per technical specification.i) 9000 KVAR 12.65 kV capacitor bank 132 7. ROAD CULVERTDesign, Engineering and const. of Pipe culvert(s) at suitable locations under the approach road (from main PWD/ HUDA/Municipal/Village road to the sub-station entry point) including, cost of labour, material complete in all respects as per I.R.C. Standards. 133 8. TRANSFORMER FOUNDATION FOR 66 KV MUSSIMBLE : 8.1 Construction of transformer foundation including all associated works, RCC, PCC, reinforcement steel, misc. structural steel and other items not mentioned herein but required for completion of work as per technical specifications & approved drgs. In case extra foundation(s) has/have to be constructed (as per approved T/F drawing) to complete the job, nothing extra would be paid on this count..25/31.5MVA,66/11kV T/F foundationcomplete in all respect. 134 9. TRANSFORMER FOUNDATIONWORK FOR 66 KV SADOPUR: 9.1 Design Engineering & construction of transformer foundation including all associated works, RCC, PCC, reinforcement steel, misc. structural steel and other items not mentioned herein but required for completion of work as per technical specifications & approved drgs. In case extra foundation(s) has/have to be constructed (as per approved T/F drawing) to complete the job, nothing extra would be paid on this count.The successful bidder shall develop the designs & drawings as per the soil investigation report attached in specification and shall get these checked/vetted from any professsional institute as per contract before final approval..25/31.5MVA,66/11kV T/F foundationcomplete in all respect. 135 10 Statipon Transformer Foundation work: Design, Engg., supply of labour, material and construction of foundation for station transformer including all associated works, RCC, PCC, Reinforcement steel, misc. structural steel and other items not mentioned herein but required for the completion of work as per technical specifications.11/0.4kV 200KVA Station T/F 136 11. OUTDOOR CABLE TRENCHES:Supply of labour, material such as cement, reinforcement steel, GI angles, flats, PCC & brick pillars below cable trenches for construction of Out-Door Cable Trenches (ODCT) of required depth/ type with pre-cast RCC covers including associated works like Cable Trench Culverts crossings for roads and sumpit-cum-pump chamber with 2HP motor of reputed make, starter, volt meter, amp-meter etc. as per approved trench layout plan, HVPNL drgs. & tech. specs. complete in all respecti) D-type trench 137 ii) E-type trench 138 iii) F-type trench 139 iv) G-type trench 140 v) H-type trench 141 vi) Road culvert 142 vii) Sump Pit Cum Pump Chamber 143 12. SITE SURFACING:12.1Providing, supplying & laying 100mm thick in two layers of 50mm each of 20mm nominal size uncrushed/crushed/ broken stone pebbles gravel fill including dressing, rolling & compacting complete in all respects as per specs. & instructions of engineer incharge. 144 12.2 Providing, supplying & laying 100mm thick PCC (1:4:8) using 20mm nominal coarse aggregates and supplying & spreading 100mm thick layer of 40mm nominal size uncrushed/ crushed/broken stone pebbles over the PCC including construction of toe wall (exposed wall plastered with cement mortar 1:5) to hold 40mm single size uncrushed/ crushed /broken stone pebbles wherever required in the bays covered under the present scope as detailed in the GELO & instructions of engineer incharge. 145 13. BOUNDARY WALL13.1 Supply of labour, T&P, material & construction of front, side & U/C boundarybelow DPC level as per GELO/CLO, tech. spec. & HVPNL drgs including excavation, PCC, brickwork, back filling, plaster, painting etc. complete in all respects. 146 13.2 Supply of labour, material and construction of front, C & U/C boundary walls above DPC including main gate foundationsas per GELO/CLO, technical specifications. & HVPNL drg. HCD/TS-1176 R3 including DPC complete in all respect.i. 6 ft. high U/C B/wall with barbed wire on angles at top. 147 ii. 4½ ft. high front wall including providing grill at top of wall & construction of gate pillars. 148 iii. 4½ ft. high side wall with barbed wire on angles at top of wall. 149 14. CONTROL ROOM BUILDING FOR 66 KV MUSSIMBLE: Supply of labour, material, T&P and construction of control room building complete in all respect as per tech. specs. including exterior weather proof paint, interior emulsion, all internal services like water supply including supply & providing of 5000ltr. capacity double layer Sintex/Diplast PVC tank, Sewerage system, electrification including wiring, modular switches, maximum 20W 4ft. long LED tubes with fittings minimum 1960 lumens, ceiling/exhaust fans, Finishing, Plinth protection, flooring, Indoor trenches, Soakage pit near the switch house building, Rcc pipe around the building to drain of water,connection of sewerage system to Soakage pit/Sewerage system of local authorities (as applicable), connection to main water supply system of local authority, bore (Tubewell) (as applicable) etc. & any other item not mentioned herein but required for completion of works. 150 15. CONTROL ROOM BUILDING FOR 66 KV SADOPUR:The design of foundation below plinth level is in the scope of successful bidder. However, the architectural design and the structural design above plinth level shall be kept same as per HVPNL standard drawings attached with bidding documents. Design engineering, supply of labour, material, T&P and construction of control room building complete in all respect as per tech. specs. including exterior weather proof paint, interior emulsion, all internal services like water supply including supply & providing of 5000ltr. capacity double layer Sintex/Diplast PVC tank, Sewerage system, electrification including wiring, modular switches, maximum 20W 4ft. long LED tubes with fittings minimum 1960 lumens, ceiling/exhaust fans, Finishing, Plinth protection, flooring, Indoor trenches, Soakage pit near the switch house building, connection of sewerage system to Soakage pit/Sewerage system of local authorities (as applicable), connection to main water supply system of local authority, bore (Tubewell) (as applicable) etc. & any other item not mentioned herein but required for completion of works.The successful bidder shall develop the designs & drawings as per the soil investigation report attached in specification and shall get these checked/vetted from any professsional institute as per contract before final approval. 151 16. U/C FENCING & GATESProviding & fixing chain link fencing including foundations, GI angle iron posts and gate(s) complete as per electrical layout & tech. spec. & as per drawing attached. 152 17. PCC PAVEMENTConstruction of PCC pavement in front, rear or side (as per site requirement of the switch house building) as per drawing no. HCD/SK-172 & technical specifications. 153 18. DRAINAGE–CUM-RAIN HARVESTING SYSTEM for 66 kV substation Mussimble 18.1 Supply of labour, material for construction ofrecharge structures with bore well(s) as per HVPN drawings & specs. complete in all respect . The location of recharge structures shall preferably be located on corner(s) of the substation and shall be got decided from the concerned Engineer in-Charge on the basis of surroundings of the substation(s). In case ground water table is less than 8m from FGL, rain harvesting well shall not be constructed (the drainage system with sump pit is to be constructed as per item mentioned below). 154 18.2 The successful bidder shall evolve design & drawing for drains, manholes with RCC covers andsettlement tankincluding preparation of drainage layout drawing for disposal of rain water from building’s roof top & switch yard (s/stn.) area into respective bore well(s) in such a way that there shall be no ponding of water on the roof and switch yard (s/stn.). The layout so developed shall be got approved from the employer. The location of sump-pit-cum-pump chamber shall preferably be locatedon corner(s) of the s/stn. and shall be got decided from the concerned Engineer in-Charge on the basis of surroundings of the substation(s). The successful bidder will also supply labour and material for construction of sump-pit-cum-pump chamber as per HVPNL drgs. & provide one no. non clog pump(s) of 5HP of reputed make capacity with main switch, starter, volt meter, Amp. Mtr. etc. (for each sump pit) for disposal of excess water to outfall point. Any other item(s) not mentioned herein but is/are required for completion of works shall be done by the successful bidder without any extra cost to the employer.i)Drain Section-1 155 ii) Drain Section-2 156 iii) Drain Section-3 157 iv) Road Crossing 158 v) Trench Crossing 159 vi) Sump Pit Cum Pump Chamber 160 19. DRAINAGE–CUM-RAIN HARVESTING SYSTEM for 66 kV substation Sadopur The successful bidder shall evolve design & drawing for drains, manholes with RCC covers andsettlement tankincluding preparation of drainage layout drawing for disposal of rain water from building’s roof top & switch yard (s/stn.) area into respective bore well(s) in such a way that there shall be no ponding of water on the roof and switch yard (s/stn.). The layout so developed shall be got approved from the employer. The location of sump-pit-cum-pump chamber shall preferably be locatedon corner(s) of the s/stn. and shall be got decided from the concerned Engineer in-Charge on the basis of surroundings of the substation(s). The successful bidder will also supply labour and material for construction of sump-pit-cum-pump chamber as per HVPNL drgs. & provide one no. non clog pump(s) of 5HP of reputed make capacity with main switch, starter, volt meter, Amp. Mtr. etc. (for each sump pit) for disposal of excess water to outfall point. Any other item(s) not mentioned herein but is/are required for completion of works shall be done by the successful bidder without any extra cost to the employer.The successful bidder shall develop the designs & drawings and shall get these checked/vetted from any professsional institute as per contract before final approval.i)Drain Section-1 161 ii) Drain Section-2 162 iii) Drain Section-3 163 iv) Road Crossing 164 v) Trench Crossing 165 vi) Sump Pit Cum Pump Chamber 166 20. RCC M-20 for 66 kV substation Mussimble inclusive of labour, material, shuttering, steel reinforcement etc. complete in all respects to compensate excess quantity required to be executed due to difference in existing ground level and the formation level to be fixed after contouring or difference on account of revised drawing issued at the time of construction and the tender drawing. 167 21. RCC Retaining wall for 66 kV substation Sadopur Design engineering, supply of labour, material and construction of T/L shaped RCC retaining wall below DPC to retain the earth filling complete in all respect. The successful bidder shall develop the designs & drawings as per the soil investigation report attached in specification and shall get these checked/vetted from any professsional institute as per contract before final approval.Difference between NGL & FGL from 2.5 to 3.5 mtr. 168 22. Distamtlement for 66 kV substation Sadopur :-Dismantling of existing residential quarters, OHT and underground tank etc. Dismantling including foundations of following structure. The material whatsoever shall be the property of the successful bidder. The dismantled material shall not be allowed for reuse at any of the sub-stations; however, HVPNL may allow use of bricks for brick ballast purpose only.Dismantling of existing residential quarters, Overhead tank, toilet, boundary wall and underground tank etc complete in all respect.
