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| 1 | Excavation in trenches not exc. 1.5m wide and not exc 1.5m in depth and getting out in soft loose soil for laying of cable trenches all as specified and directed by Engineer-in-Charge. |
| 2 | All as per item No.1Herein before but in hard dense soil |
| 3 | Returning filling in, including spreading, levelling, watering and well ramming in layer not exc 25cmall as specified. |
| 4 | Removal of surplus soil(excavated soil) to distance not exceeding 50m and depositing where directed at a level not exc 1.5m above the starting point and all specified. |
| 5 | M&L for providing dry river sand / crush stone dust for cushioning to UG cable including punning down of sand in layers all as specified. Note :- Cushioning will be measured and paid after punning down. |
| 6 | Supply and laying factory cast, unreinforced precast concrete cable cover factory made embossed the mark “LT CABLE”/ HT CABLE class LV type1 flat size 250x150x40 mm laid in trenches as specified and as directed by Engineer-in-Charge. |
| 7 | Supplying, laying and testing XLPE-insulated, armoured, heavy-duty electric power cable with copper conductor of 1.1 kV grade, having cross-sectional area of 400/300 sq mm, 2-core. The cable shall be installed as per standard engineering practices, including proper saddling and fixing on wall surfaces, with two runs of cable provided per outgoing feeder (O/G) and connectedwith end termination kit (ISI marked). All materials, labour, tools and accessories required for complete installation shall be included in the scope of work. |
| 8 | Supplying and laying XLPE insulated, screened, PVC bedded, galvanised steel strip or wire armoured, electric power cables (heavyduty) with aluminium conductor, 22000 volts Earthed, grade cross sectional area 95 sq. mm 3 core |
| 9 | Supply, Fixing, Testing and commissioningof Air Circuit Breaker (ACB) 1600 Amps, 4-pole, 50 kA breaking capacity, complete with weather-proof outdoor double-door enclosure. The ACB shall be a fully moulded, fixed type, manually operated. High short time withstand capacity IcuG) = Ics = Icw for 1 sec for total selectivity, 100% rated neutral pole, S1 Frame, protection through microprocessor releases (BR18G) , self diagnostic microprossesor based releases with on load testing through TEST button. In built thermal memory. equipped with an electronic release suitable for overload, short-circuit, and earth-fault protection. The unit shall operate on a rated voltage of 433V, 50 Hz, and conform to relevant IS/IEC 60947-2. The outdoor enclosure shall be fabricated from heavy-gauge CRCA sheet, powder-coated, rust-resistant, and IP-65 or higher degree of protection, with proper ventilation louvers fitted with insect-proof mesh. The double-door design shall ensure ease of maintenance and enhanced safety during operation. All accessories including auxiliary contacts, shunt/under-voltage trip, mechanical interlock, cable termination lugs, earthing provisions, mounting frame, and necessary hardware shall be included in the scope of work. Installation shall be completed with proper alignment, testing, commissioning, and recording of parameters to ensure reliable and uninterrupted operation (makeBCH Cat No BM96055OOOO or equivalent in ABB ,havells) |
| 10 | Supply, installation, testing and commissioning Earthing complete with galvanised steel earth plate electrode 60×60cm.× 6mm thick, buried directly in ground (earth pit not less than 2.25 metres deep below ground level) with top edge of the plate not less\"than 1.5 metres below normal ground level, connected to using galvanised iron strip 32×6mm as earthing lead by means of bolts, nuts, check nuts and washers of galvanised iron or steel all as shown in electrical plate No. 3 connected to earthing test point all as specified or indicated including testing on completion |
| 11 | Supply, installation, testing and commissioning of 22kV/433V, 800 kVA, 3-phase, 50 Hz,OCTC oil-immersed, naturally air cooled (ONAN), outdoor type Level 2 distribution transformer, copper wound, vector group Dyn11, conforming to IS:1180 (Part-1)/IEC standards with standard fittings and foundation. The transformer shall be provided with off-circuit tap changer with tapping range of ±5% in steps of 2.5%, high voltage bushings suitable for 22kV system, low voltage bushings for 433V, first fill of new transformer oil as per IS:335, conservator tank with silica gel breather, magnetic oil level gauge, winding and oil temperature indicator, pressure relief device, drain valve, lifting hooks, rollers and standard accessories. Transformer shall be designed for maximum efficiency at 50% load, with impedance as per IS limits, short circuit withstand capacity, and insulation level suitable for 22kV system voltage. The scope includes supply of foundation bolts, base frame, earthing connections, painting with weatherproof anti-corrosive paint, complete installation, testing at site, and handing over in ready-to-use condition. |
| 12 | Supply, installation, testing and commissioning of 22kV, SF₆ gas insulated, metal enclosed, extensible type Ring Main Unit (RMU), outdoor type, complete with one (1) incoming and two (2) outgoing vacuum circuit breakers, each rated for 1250A, 25kA for 3 sec, suitable for 3-phase, 50 Hz system. The RMU shall be fully type-tested as per IEC 62271 standards and suitable for operation on 22kV earthed system. It shall be provided with cable terminations, earthing switches, mechanical interlocks, mimic diagram, pressure relief system, local/remote operation facility, and padlocking arrangement. The RMU shall have provision for SCADA/DCS compatibility with potential free contacts for remote signaling. The scope includes delivery at site, complete installation, commissioning, testing of all protective relays, wiring, accessories, and handing over in fully operational condition (Make - CSec/ Schneider/ ABB Each Vacuum Circuit Breaker (CB) Incomer FeederComprise of following:- (a) 22kV, 1250A, 25kA for 3 sec, Manually Operated Vacuum Circuit Breaker (VCB) – 01 No.(b) 22kV, 1250A Manually Operated Load Break Switch (LBS) with Earth Switch – 01 No.(c) Mechanical Position Indicator (ON / EARTHED) – 01 No. (d) Current Transformers for Protection – 01 Set, ratio 1250/1A (or 1250/5A), Class 5P10, burden ≥ 15 VA (recommended 30 VA), suitable for protection application. (e) Self-Powered 3 Overcurrent + 1 Earth Fault Relay with minimum 10% relay setting (C&S / Ashida make or equivalent) – 01 No.(f) Live Cable Indication System – 01 No. (g) Cable Termination Bushing suitable for single run of 3-core × 95/120 sq.mm XLPE cable – 01 Set. Each VacuumOutgoing Feeder (22kV, CB type) shall comprise the following:(a) 22kV, 630A, 21kA for 3 sec, Manually Operated Vacuum Circuit Breaker (VCB) – 01 No.(b) 22kV, 630A Manually Operated Load Break Switch (LBS) with Earth Switch – 01 No.(c) Mechanical Position Indicator (ON / EARTHED) – 01 No. (d) Current Transformers for Protection – 01 Set, ratio 630/1A (or 630/5A), Class 5P10, burden ≥15 VA (recommended 30 VA). (e) Self-Powered 3 Overcurrent + 1 Earth Fault Relay with minimum 10% relay setting (C&S / Ashida make or equivalent) – 01 No. (f) Live Cable Indication System – 01 No.Common Items & Accessories for RMU. Manometer with Green & Red zone for indicating SF₆ gas pressure inside the tank, fitted on RMU – 01 No each. Operating Handle (supplied loose with RMU) – 01 Set each. Support Structure – Suitable size support structure made of MS angle 50×50×6 mm, height 750 mm, with platform for safe breaker operation, designed and recommended by the OEM. Contractor shall submit the supporting structure design for manufacturer’s concurrence prior to execution. |
| 13 | Supply ,install,testing & commissioningof 22KV Touch Proof Kits for 3 way RMU i.e. for one incoming and 2 outgoing cable Make:- raychem,3M (01 No. Single Cable touch proof kit for each VCB function) |
| 14 | Supply and fix out door type cable end termination joint heat shrinkable type for 22 KV (E) Grade HT cable of size95 sqmm x 3 Core to 240 Sqmm x 4 Core and connecting the cable with the load and testing complete all as specified and as directed by Engineer-in-Charge at site. |
| 15 | Supply, installation, testing and commissioning of factory-fabricated 4 way VTPN Distribution Board (DB) conforming to IEC 61439-3, suitable for flush mounting or surface mounting, fabricated out of powder-coated CRCA sheet steel of not less than 14/16 SWG thickness. The DB shall be equipped with 250 A copper busbar for each phase, fully insulated busbar system, shrouded neutral bars, 2 Nos. neutral bars, 2 Nos. earth bars, and cable ties for proper cable management. The assembly shall include improved pan design for ease of installation, prefitted masking sheet, and reversible door suitable for IP43/IP54 degree of protection. The DB shall have provision for DPX³ 160A MCCB as incomer and SP/TP MCBs as outgoing feeders, complete with interconnections, earthing, testing and commissioning, all as specified and directed by the Engineer-in-Charge |
| 16 | S&F MCB DB SPN 8 ways double door with 240 Volt, 200 amps rated bus bar with all accessories flush in the wall including matching the existing surfaceall as specified and directed by Engineer-in-Charge |
| 17 | S&F MCB SP 5-32 Amp single pole 230V 10 kA \"C\" curve, as per site requirement, complete all specified and directed by Engineer-in-Charge |
| 18 | S&F MCB SPN 6-32 A, 240V 10kA C curve complete all as specified and directed by Engineer-in-Charge |
