138WE/L-208/2025-26

Supply, Installation, testing & commissioning of Factory Made 11 kV, 630 Amps, 21kA for 3 Seconds, AFLR, SF6 Insulated, Motorised, Outdoor 3 Way RMU consisting of 1 No VCB as Incomer and 2 Nos. of VCBs as Outgoing complete all specified and as directed. Make: ABB / Schneider / Siemens / BHEL Note: (a) The make of Vacuum Interrupter & VCB shall be of same make as the Ring Main unit. (b) The RMU shall be manufactured at OEM factory only. No other mode of manufacturing shall be accepted.

[A] RMU shall be 11 KV, 630 Amps, 21 kA for 3 Seconds, internal Arc 21kA/1Sec, AFLR, SF6 Insulated, motorized, outdoor, 3 Way RMU, left side extensible, right side metering unit, SACADA compatible overload and earth fault protection relay (Ashidha / CSPDR) with air insulated bus connected metering unit (Type +VVV+M), type tested in line with latest IEC Standards, suitable for operations at the altitude and temperature prevailing at Kiari (site location). Switchgear and busbar shall all be contained in a Stainless Steel Enclosure. All live parts, busbars and connections of RMU shall be enclosed in one SF6 tank to avoid multiple interconnections. SF6 Tank shall be sealed for life robotically welded non-magnetic and non-ferrite stainless steel Grade 304 of minimum 2.5mm thick having IP67 Degree of protection filled with SF6 gas as insulation with leakage rate, nominal operating gas pressure 1.3 BAR @ 20 Deg C, manual welding or hermetic sealing of tank shall have site replaceable bushing for ease of trouble shooting during breakdown. RMU Tank shall provide full Insulation and Switchgear shall be insensitive to the environment with degree of protection of IP67. Switchgear operating mechanism shall have an IP2X Protection and Cable Chamber shall have IP3X Protection. Outer Enclosure shall be IP 54 type tested. Painting (FRONT COVER RMU: RAL7035 & (FOR MIMIC RAL7043)) & ENCLOSURE: RAL7035 & (TOP COVER & BASE STAND IN RAL 7043)). The unit shall be internal arc proof 21kA for 1 sec with AFLR classification tested and totally safe for human beings. The gas release & personnel safety from internal arc shall not depend on plinth design. The release of gas to be from the top of the unit, so that, even if the person is operating the unit, opening the cover & there are personnels near the sides of the RMU/ plinth, top release will ensure their safety. The hot gas release, in case of an internal arc, in no case shall be from any side or bottom of the unit, as the same is unsafe for the operating personnel/ pedestrian or general public. Bidder shall provide type test report to prove compliance to the Internal Arc fault IAC-AFLR as per IEC 62271-200. Internal arc testing shall be done with enclosure door in open condition, with switching devices in operation mode as per specified standard.

[B] Vacuum Circuit Breaker [VCB] Each shall be comprising of the following: [i] 11 KV, 630 Amps, 21 kA/ 3s, 3 Pole Manual/ Motorised VCB with 3 pole manual disconnector and 3 pole manual earth switch, manual/ motorized Spring Assisted Mechanism and Series Trip Coil – 1 No. [ii] Self Powered Relay with O/C, S/C, E/F Protection – 1 No [iii] CT Ratio 200-100/1A, Class - 1.0, 2.5VA for Metering and CT Ratio 200-100/1A, Class 5P10, 2.5 VA for Protection – 1 Set each [iv] Live Cable Indicator with indications at the Front and Three Inlets to check the Synchronization of Phases – 1 No [v] Cable Termination Bushing suitable for up to 1 Run, 3 Core, 185 Sqmm, XLPE Cable – 1 Set [vi] Cable Termination Cover Boots [Push on type] – 1 Set

Note: [a] An operator situated in front, lateral and rear [A-FLR 21 kA – 1 Sec, Downwards Exhaust, for Tank as well as Cable Compartment] of the RMU Switch board during an internal fault shall not be exposed to the effects of Arcing. Internal Arc Type Test Report for IAC AFLR 21 kA for 1 Sec for both Tank & Cable Box shall be for minimum as per OEM standards. [b] All operations of the RMU shall be as per OEM standards. [c] Copy of the type test reports as per latest IEC shall be submitted along with drawings for approval by GE..

Supply, installation, testing and commissioning outdoor type step down transformer 11000 volts/433 volts (at no load), AC, 3 phase 50Hz capacity 500 KVA core type double copper wound, oil immersed, naturally cooled, oil natural, air natural (ONAN) with external cooling fins, delta connected on primary side (HV) ) star connected on secondary side (LV) in accordance with vector symbol, Dyn 11 (vector group) with neutral brought out on secondary side (LV side) and having tapping at +5% to -10% HV side ( at 2.5% each step) to be changed by means of hand operated off load tap changer gear. The Transformer shall conform to IS 1180 Part 1:2014 (level-2) and BEE certified.

Supply, installation, testing and commissioning outdoor type step down transformer 11000 volts/ 433 volts (at no load), AC, 3 phase 50Hz capacity 250 KVA core type double copper wound, oil immersed, naturally cooled, oil natural, air natural (ONAN) with external cooling fins, delta connected on primary side (HV) ) star connected on secondary side (LV) in accordance with vector symbol, Dyn 11 (vector group) with neutral brought out on secondary side (LV side) and having tapping at +5% to -10% HV side ( at 2.5% each step) to be changed by means of hand operated off load tap changer gear. The Transformer shall conform to IS 1180 Part 1:2014 (level-2) and BEE certified.

Material & labour for construction of platform for installation of transformer of size all as shown in Drawing No CELZ-TD-02-2022-PLATFORM FOR TRANSFORMER UPTO 500 KVA, including chain link fencing around PCC platform for 250 KVA/ 500 KVA transformer of size 6m x 6m x 1.8m including 50 x 50 x 6mm angle iron post embedded in PCC 1:3:6 type C2 foundation of size 0.3 x 0.3 x 0.45m including angle iron 50 x 50 x 6mm at corner braced with angle iron 25 x 25 x 6mm support including filling aggregate of 40mm to 63mm size of spread thickness 100mm all around. The platform along with entrance gate of size 1.5m wide and height same as fencing complete all as specified & directed.

Supply, erecting and fixing in proper position steel tubular swaged poles of type 410-SP-55 (11.0 mtr long) complete with CI base plate, finial taper plug, bolts, nuts ,screws and pole cap and inclusive of two coats of aluminium paint over a coat of red oxide primer and synthetic enamel paint from ground level in 30cm alternative black and yellow strips upto 1.20 mtr height including preparing the surface all as specified and as directed. Note :- Earthwork, PCC foundation & coping shall be measured and paid separately.

Supply and fixing switch air break, gang operated, triple pole, mechanically operated, mounted on insulator and steel frame, with operating mechanism worked from ground level, having current rating up to 400 Amps for working pressure 11000 Volts with drop out type fuse assembly complete all as specified and as directed.

Supply and fixing lightening arrestors expulsion type suitable for HT 11KV complete with all fitting, transmission class having discharge capacity 65Kilo Amp all as specified.

Supply and fixing Aluminium Conductor Steel Reinforced (ACSR) (sizes as ordered) with permissible sag and providing Jumper, PVC separator etc., fixing on electric poles and binding to Insulators with Aluminium binding wire as in OH Conductors including stringing, tightening, etc., complete all as specified and as directed. Note : Cost of Binding Wire is deemed to be included in the quoted unit rate.

Supply and fixing Galvanised steel wire 3.15 or 4.0mm dia as earth continuity conductor and fixed to pole, binding with Aluminium binding wire, complete all as specified and as directed. Note : Cost of binding wire is deemed to be included in the quoted unit rate.

Material and labour for cross arms, bracings, supports clamps and back plates fabricated from structural steel sections incl. nuts, bolts, washers, welding, bending cold or hot drilling holes for bolts in any shape or size as indicated or directed and inclusive of two coat of aluminium paint over a coat of red oxide primer including preparing the surface all as specified and as directed.

Material and labour for Pin type insulator, porcelain, vitreous white/ brown including one galvanized mild steel spindle, two galvanized iron washers and one nut (galvanized iron), for size of 150 mm height, 150 mm dia for 11000 volts grade insulator all as specified and as directed.

Material and labour for Disc type insulator (Single disc assembly), porcelain, vitreous white / brown of size of 145 mm height, 255 mm dia ball and socket type for 11000 volts grade insulator all as specified and as directed.

Material and labour for stay assembly complete with accessories as shown in electrical plate No-1 of SSR Part I, with stay rod of 16 mm dia complete all as specified and as directed (loop type insulator stay, clamps, excavation and concrete measured separately)

Supplying, laying, jointing, testing and commissioning of XLPE insulated screened PVC bedded galvanised steel strip or wire armored electric power cable (Heavy duty) with aluminium conductor 11000 volts grade, cross sectional area 95 sqmm 3 core suitable for 11KV earthed systems complete all as specified and/or as directed by the Engr-in-Charge.

Supply and fixing cable jointing kit for 11 KV (Earthed) grade cable for outdoor termination heat shrink type joint complete with jointing material and accessories suitable for 3 core XLPE armoured aluminium conductor cable of size 50 sqmm to 95 sqmm, complete all as specified and/or as directed by the Engr-in-Charge.

Material and labour for Cable route indicator made of CI disc 100mm dia, 6mm thick with inscription of HT Cable / 11000 Volts fixed to MS angle of size 40 X 40 X 6mm, 750mm long with bolts & nuts, duly grouted in PCC 1:3:6, Type C1 complete including necessary excavation and earth work all as specified and as directed.

Material and labour for galvanized iron tubing 80mm bore light grade with all fitting laid in trenches/wall/floor/pole for protection of cable including providing fixing clamps, bolts and nuts of suitable size all as specified. Note: Excavation and earth work shall be measured and paid separately.

Material and labour for Earthing complete with galvanised steel earth plate electrode 60 cm X 60 cm X 6 mm thick, buried directly in ground (earth pit not less than 2.25 meter deep below ground level) with top edge of the plate not less than 1.5 meters below normal ground level, connected to and including 4 mm dia GI wire as earthing lead, by means of bolts, nuts, check nuts and washers of galvanised iron all as shown in electrical plate No 3 of MES SSR Part I and testing on completion including excavation and earth work in any type of soil, PCC (1:3:6) type C1 chamber, MS frame and cover 6 mm thick in cement concrete (1:2:4) type B1 reinforced with welded steel wire fabric or XPM (weight not less than 4 Kg per Sqm) with cast iron frame, funnel with wire mesh, GI watering pipe 20mm dia medium grade and lugs complete all as specified and/or as directed by Engr-in-Charge.

All as per above Serial No. 19, but earthing with galvanized steel earth plate electrode 600mm x 600mm x 6 mm thick using galvanized iron earth strip 32 X 6mm.

Earth continuity conductor or main earthing lead, 32x6mm galvanised strip fixed to wall on batten or recess or chases or buried in ground or drawn in conduit/pipe or fixed to poles or any other indicated situation for loop earthing etc as required.

Earth continuity conductor or main earthing lead, 20x3mm copper strip fixed to wall on batten or recess or chases or buried in ground or drawn in conduit /pipe or fixed to poles or any other indicated situation for loop earthing etc as required.

Danger notice plate of 1.6mm thick mild steel sheet, vitreous enamelled white, with letters, figures and conventional skull and bones in signal red colour and fixed with M.S. clamps, bolts and nuts of approved size, for HT, 25 x 20 cm size complete all as specified and as directed by the Engineer in charge.

Danger notice plate of 1.6mm thick mild steel sheet, vitreous enamelled white, with letters, figures and conventional skull and bones in signal red colour and fixed with M.S. clamps, bolts and nuts of approved size, for LT, 20 x 15 cm size complete all as specified and as directed by the Engineer in charge.

Supply only synthetic insulation mat of size 2 m x 1 m for 11KV Voltage as per IS 15652 - 2006.

Supply, erecting and fixing in proper position steel tubular swaged poles for security lights of type 410-SP-31 (09.0 mtr long) complete with CI base plate, finial taper plug, bolts, nuts, screws and pole cap and inclusive of two coats of aluminium paint over a coat of red oxide primer including preparing the surface all as specified and as directed. Make : Jindal/ Bansal Utkarsh/ Calcutta Pole and tubes/ India Poles Corpn Note :- Earthwork, PCC foundation & coping shall be measured and paid separately.

Supply & fix Integral LED street light Luminaire 70 Watts, comprising of epoxy powder coated, Pressure die cast aluminium housing enclosed with glass cover in frame, with suitable size of bracket, nut and bolts, PVC insulated three core flexible cable of suitable size and length duly connected to light fitting complete including installation and testing all as specified and directed.

Supply and fixing loop out box of FRP made with IP 65 protection of thermoplastic circuit breaker boxes with metric knockouts for cable entry and exit, Combi climate Cable Glands of IP 66/ IP 67 for cable entry and Grommets IP 65 for conduit for cable exit with MCB 6 Amps, 10 kA, C Curve Overload and Short Circuit protection, terminals as bus terminals for cable with necessary fixing arrangements and with cable glands, etc.

Supply, installation, fixing, testing and commissioning of timer switches suitable for 415 V, 3-phase supply, rated for 20 Amps, complete with suitably rated contactor, housed in a existing LT Panel , including all accessories and connections required for proper functioning, all as specified and directed by Engr in Charge.

Supply, install, testing and commissioning of factory made, CPRI approved LT panel of size 1.8m x 1.5m x 0.7m, outdoor type made out of CRCA sheet 3.15 mm thick, frame factory fabricated with front and back openable double door with locking arrangement, with MS angle section 50x50x6 mm support, duly powder coated having thickness not less than 100 microns including suitable gasket to make it dust and vermin proof, suitable for 3 Phase 4 wire, 415 Volts, 50 Hz, AC supply system aluminium bus bar of capacity 1500Amps, including copper wiring complete for all accessories, grouting the legs of panel in PCC foundation 1:3:6 platform complete as all directed suitable for and including the following :- (Main LT Panel for 500KVA TR). Incoming: (i) LT switch gear 440 Volts 3 phase, 4 wire 50 cycles, cubicle or truck type complete with air circuit breaker, with microprocessor release IPR -E electrical draw type 1000 Amp, 65KA, overload protection, no-volt release with necessary CTs, meter and cable boxes of rating up to - 01 NO for incoming Outgoing: (i) Change over switch 630 Amps capacity 4 Pole, on load type - 01 No. (ii) MCCB AC 3 Phase 415 V, 50Hz 4 pole 350 Amp capacity 36KA with adjustable type thermal and magnetic setting relays - Outgoing 04 Nos & one Spare (Total 05 Nos). (iii) MCB AC 3 Phase 415 V, 50Hz 4 pole 40 Amp capacity 16 kA with adjustable type thermal and magnetic setting relays - 02 Nos for local lighting & 01 Nos Spare (Total 03 Nos) (iv) Intelligent Panel meter to measure voltage, current, frequency, power factor, etc with all connected CTs (v) LED indicating lamps with colour Red, Yellow, Blue - 01 Set

Supply, install, testing and commissioning of factory made, CPRI approved LT panel of size 1.8m x 1.5m x 0.7m, outdoor type made out of CRCA sheet 3.15 mm thick, frame factory fabricated with front and back openable double door with locking arrangement, with MS angle section 50x50x6 mm support, duly powder coated having thickness not less than 100 microns including suitable gasket to make it dust and vermin proof, suitable for 3 Phase 4 wire, 415 Volts, 50 Hz, AC supply system aluminium bus bar of capacity 800Amps, including copper wiring complete for all accessories, grouting the legs of panel in PCC foundation 1:3:6 platform complete as all directed suitable for and including the following :- (Main LT Panel for 250KVA TR). Incoming: (i) LT switch gear 440 Volts 3 phase, 4 wire 50 cycles, cubicle or truck type complete with MCCB, with microprocessor release IPR -E electrical draw type 500 Amp, 36 KA , overload protection, no-volt release with necessary CTs, meter and cable boxes of rating up to - 01 NO for incoming Outgoing: (i) Change over switch 400 Amps capacity 4 Pole, on load type - 01 No. (ii) MCCB AC 3 Phase 415 V, 50Hz 4 pole 250 Amp capacity 36KA with adjustable type thermal and magnetic setting relays - Out Going 03 Nos (Outgoing 02 Nos & 01 No Spare) (iii) MCB AC 3 Phase 415 V, 50Hz 4 pole 40 A capacity 16 kA with adjustable type thermal and magnetic setting relays - 07 Nos (iv) Intelligent Panel meter to measure voltage, current, frequency, power factor, etc with all connected CTs (v) LED indicating lamps with colour Red, Yellow, Blue - 01 Set

Supply, install, testing and commissioning of factory made, CPRI approved LT panel of size 1.8m x 1.5m x 0.7m, outdoor type made out of CRCA sheet 3.15 mm thick, frame factory fabricated with front and back openable double door with locking arrangement, with MS angle section 50x50x6 mm support, duly powder coated having thickness not less than 100 microns including suitable gasket to make it dust and vermin proof, suitable for 3 Phase 4 wire, 415 Volts, 50 Hz, AC supply system aluminium bus bar of capacity 600Amps, including copper wiring complete for all accessories, grouting the legs of panel in PCC foundation 1:3:6 platform complete as all directed suitable for and including the following :- (Distribution LT Panel for 500KVA TR). Incoming: (i) MCCB AC 3 Phase 415 V, 50Hz 4 pole 350 Amp capacity 36KA with adjustable type thermal and magnetic setting relays - 01 Nos Outgoing: (i) MCB TPN AC 3 Phase 415 V, 50Hz 40 Amp capacity 10KA with adjustable type thermal and magnetic setting relays - 06 Nos (ii)) Intelligent Panel meter to measure voltage, current, frequency, power factor, etc with all connected CTs (iii) LED indicating lamps with colour Red, Yellow, Blue - 01 Set

Supply, install, testing and commissioning of factory made, CPRI approved LT panel of size 1.8m x 1.5m x 0.7m, outdoor type made out of CRCA sheet 3.15 mm thick, frame factory fabricated with front and back openable double door with locking arrangement, with MS angle section 50x50x6 mm support, duly powder coated having thickness not less than 100 microns including suitable gasket to make it dust and vermin proof, suitable for 3 Phase 4 wire, 415 Volts, 50 Hz, AC supply system aluminium bus bar of capacity 600 Amps, including copper wiring complete for all accessories, grouting the legs of panel in PCC foundation 1:3:6 platform complete as all directed suitable for and including the following :- (Distribution LT Panel for 250KVA TR). Incoming: (i) MCCB AC 3 Phase 415 V, 50Hz 4 pole 250 Amp capacity 36KA with adjustable type thermal and magnetic setting relays - Out Going 03 Nos & 01 No Spare (Total 04 Nos). Outgoing: (i) MCB TPN AC 3 Phase 415 V, 50Hz 40 Amp capacity 10KA with adjustable type thermal and magnetic setting relays - 05 Nos (ii) Intelligent Panel meter to measure voltage, current, frequency, power factor, etc with all connected CTs (iii) LED indicating lamps with colour Red, Yellow, Blue - 01 Set

Supply and laying XLPE FRLS insulated, armoured electric cables (heavy duty) with stranded aluminium conductor rating 1100 volts grade, laid in trences or passing through pipes, ducts or fixed to walls/poles, of the following sizes:-

400 sqmm 3.5 core.

240 sqmm 3.5 core.

185 sqmm 3.5 core.

50 sqmm 3.5 core.

25 sqmm 3.5 core.

16 sqmm 2 core.

Material and labour for sheet metal double door enclosure MCB TPN DBs 4 way 415V complete flush mounted all as specified and as directed.

Supply and fix in replacement of sheet metal enclosure for DBs double door when MCB's to be used single pole & neutral 240 Volts 08 way complete all as specified and directed.

Supply and fix MCB 5 to 32 amp rating 240V, 10KA 'C' curve, single pole in the MCB DB complete with connection testing and commissioning complete all as specified and as directed.

Supply and fix MCB 40 to 63 amp rating 240V, 10KA 'C' curve, single pole and neutral in the MCB DB complete with connection testing and commissioning complete all as specified and as directed.

Supply and fix MCB TPN-63 Amp, 415 volts, 10KA 'C' curve, Tripple pole and neutral in the MCB DB complete with connection testing and commissioning complete all as specified and as directed.

Excavation in trenches not exc 1.5 mtr wide and not exc 1.5 mtr in depth; for laying of cable in trenches/foundation of pole and stay etc and getting out in hard/dense soil complete all as specified.

Excavation in trenches not exc 1.5 mtr wide and not exc 1.5 mtr in depth; for laying of cable in trenches /foundation of pole and stay etc and getting out in soft/disintegrated rock soil complete all as specified.

All as per Item No: 40 above but depth exc. 1.5mtr and not exc. 3 metre.

Returning, filling in, including spreading, levelling, watering and well ramming in layers not exc 25 cm in soil complete all as specified and as directed by the Engineer in charge

Removing excavated material to a distance not exc 50 mtr and depositing where directed at level not exc 1.5 mtr above the starting point all as specified and as directed by the Engineer in charge.

Material and labour PCC 1:3:6, type C2, using 40 mm graded stone aggregate as in foundation, filling, or mass concrete complete all as specified and/or as directed by Engr-in-Charge.

Material and labour for providing cement concrete 1:2:4, type B-1 using 20 mm graded crushed stone aggregate as in coping including necessary form work complete all a specified and directed by Engr-in-Charge.

Material and labour for Sand cushioning to under ground cables 8 cm below the cable before laying & 15 cm above the cable after laying, complete all as specified in clause 19.75 of SSR Part-I, 2009. Note : Punned thickness only will be measured and paid.

Supply and laying of factory made, machine pressed, unreinforced, precast concrete cable cover class LV type-1 flat size 250 mm x 150 mm x 40mm, complete all as specified and directed

Supply and laying of un-reinforced pre-cast concrete cable covers, class HV, Type 1, flat, size 300mmx l80mm x 40mm thick complete all as specified and directed

Material and labour for installation, testing and commissioning of 11 KV CT/PT meter chamber including trivector energy metering arrangement at MRS including provision of metering cubicle with 3 nos of CTs as per IS-2705, ratio 30/05A, Burden-10VA, class-.0.5, S.T.C-KA/1 sec and PTs ratio of 11KV/110V, Burden-50VA, class-.0.5, Voltage 1.2 Cont and accuracy class, HT trivector meter (DLMS compliant, TOD enabled), associated control wiring with PVC insulated copper conductor cable, termination with lugs/ferrules, fixing arrangements, earthing of CT/PT secondary and meter body, testing of ratio, polarity, burden, insulation resistance and functional performance, sealing in presence of supply authority, and all connected works complete as specified and/or as directed by Engr-In-Charge.

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