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| 1 | Supply, install, testing, commissioning complete 22KV PCVB Ring Main Unit for 7 Nos (01 for incoming and 6 No outgoing) breaker of capacity 630 Amps each, outdoor type IP54 for outdoor protection , copper bus bar of suitable rating with rupturing capacity of 350MVA with enclosure for mounting 07 Nos SF6 Breakers with interlocking arragement as specified in IE Rules & for clearance, safety and operation inside the enclosure, CPRI approved including cable termination chamber. SF circuit Breaker shall be front access. rating for single SF6 circuit breaker are as follows:- (Note: Rates shall be inclusive with 07 Nos SF6 Circiut Breakers-01 Nos incoming and 06 No outgoing) including mounting arrangement 75 cm above GL as per specification of mfg instructions incl Desmentling/removing with foundation existing four polr structure along with GODS,cross arms,clamps,nuts and bolts etc and shifting of all HT cable in RMU all as specified and directed by engr-in-charge Location SUBSTATION NO 1(i) Circuit breaker, Rated Current: 630A, closing and Tripping coil: 24v DC, Spring Charging motor : 230V AC, STC:21KA for 03 sec,with powerpack for backup(ii) BIL: 24/50/125KVP(iii) CT Ratio- 200-100/5-5ACore 1 : Burden-10VA, class:1.0Core 2 : Burden-10VA, class:5P10STC :25KA for 1SecBIL: 24/50/125KVPPotential Transformer with 3.15A HT Fuse ( Fixed type)PT Ratio : 22KV/RT3/110/RT3/110/3Core 1 : Burden-50VA, class:1.0Core 2 : Burden-50VA, class:3PBIL: 24/50/125KVPV.F 1.2 are continuous & 1.9 for 8hoursProtection Relay self powered(i) 3 over current +1E/F Relay (RS-485 communicable)(ii) Protection 50,51, 50N.51N, 86(iii) CT Secondary-5AMounting : Flush mounting(v) Aux supply : 24V DC in builtMaster Trip Relay ( Hand Reset Electromechanical type) |
| 2 | Item No.01 Contd…..Protection-86Mounting-Flush MountingAux supply : 24V DC Metering Equipment (Incoming & Outgoing)Digital Multifunction Meter (RS-485-Communicable), Class-1.0, Cut out size 92x92, Aux Supply : 230V AC Digital Voltmeter, Class 1.0,Cut out size 92x92, Aux Supply : 230V AC & 12V DCAccessoriesTNT Switch, Contacts: 02 NO & 2NCLocal Remote Switch, Contacts: 02 NO & 2NCSpace heater 100WThermostat Temperature Range: 30-90, 15A 3 Pin socket for 230 V AC Supply Current 1-A Toggle switch, Push button for Trip circuit Supervision check, Contacts:02 NOTB for CT & PT circuit, Disconnecting typeType KUTSD6TB for control circuit, Non-Disconnecting typeFuse control circuit, 8 window AnnuniciatorAux Voltage :230V ACHooter, Aux Voltage :230V ACBattery Charger 5A230V AC I/P & 24 V DC O/PBattery 12 V DC, 7AHIndication LampRed colour lamp, 24 V DC : For Breaker ONGreen colour lamp, 24V DC : For Breaker Off |
| 3 | Item No.01 Contd…..Blue colour lamp, 24 V DC : For Breaker Spring ChargeAmber colour lamp, 24 V DC : For Auto TripWhite colour lamp, 24 V DC : For Trip Circiut SupervisionRed colour lamp, 63.5 V AC : For R Phase HealthyYellow colour lamp, 63.5 V AC : For Y Phase HealthyBlue colour lamp, 63.5 V AC : For B Phase HealthyBreaker Rack in and out handleTestingFactory Tests shall be carried out in presence of Rep of Accepting Officer as per IEC standard-62271-100Following test reports for 03 Nos SF6 breaker shall be submitted before applying payments:-(i) Insulation resistance test(ii) Operation time test(iii) Contact resistance test(iv) Pre-insertion resistance (PIR) test (If applicable)(v) SF6 gas leak test(vi) High Voltage withstand test(vii) Secondary test to ensure the proper functioning of the live line indicators, fault passage indicators and relay(vii) Mechanical Operation TestNote: The contractor should submit detailed drg alongwith specification before placing order and all the breaker should be operated manual mode only. |
| 4 | M & L HT 22 KV,3 core,120 Sqmm stranded compact circular aluminium conductor,screen with extruded semi conductor compound in combination with copper tape laid up innersheath of PVC,galvanised steel flat strip armoured and overall PVC sheathed cable confirming to IS 7098 (Part-II) etc complete all as specified and directed. |
| 5 | Supply and fix out door type cable end termination joint heat shrinkable type for 22 KV (E) Grade HT cable of size 120 sqmm x 3 Core to 240 Sqmm x 3 Core and connecting the cable with the load and testing complete all as specified and as directed by Engineer-in-Charge at site. |
| 6 | Supply and fix indoor type cable end termination joint heat shrinkable type for 22 KV (E) Grade HT cable of size 120 sqmm x 3 Core to 240 Sqmm x 3 Core and connecting the cable with the load and testing complete all as specified and as directed by Engineer-in-Charge at site. |
| 7 | M & L Shed for Panel Plinth 3 x 3 x 1 mtr, shed 3 x 3 x 3.3 mtr, made up of steel work in tubular trusses including, special shaped washer etc. complete unsing ERW or induction butt welded tubes conforming to I.S.1161-1979 grade St-240, pre-painted galvaturme aluminum zinc coating GI based corrugated steel sheet 0.50 mm thick of an colour having tensile strength of 550 Mpa as in wall, fixed with self tapping screws as specified and as directed by Engineer-In - Charge. |
| 8 | Excavatioin in trenches not exceeding 1.5 m wide and not exceeding 1.5 m in depth and taking out soft/loose soil for laying of cable /erection of pole/stay pit excavation |
| 9 | All as per Sl item No 6 herein before but in hard/dence soil |
| 10 | M&L for crushed stone sand for cable cushoining laid in trenches for protection of cable |
| 11 | M&L for Returning and filling including spreading levelling watering and well ramming in layers not exceeding 25 cm |
| 12 | M&L for Removing excavated material not exceeding 50 m and depositing where directed at a level not exceeding 1.5 m above the starting point |
| 13 | Supplying and laying reinforced precast concrete cable cover, class EHV, type 1 with peak, size 450mm x 230mm x 50mm factory made embossed the mark “HT CABLE” laid in trenches as specified and as directed. |
| 14 | Supply and lay in trenches / along the wall / floor / on poles / pillars / for road / Nallah crossing, pipes GI light grade of size 100 mm dia with and including all fittings and accessories complete including taking down the old unsv all as specified and and directed for cable protection |
| 15 | Cutting and filling with PCC (1:3:6) in bituminus road as per direction of Engr in Charge for laying of UG cable and match the existing road to the existing system. |
| 16 | Supply and installation of Earthing rods for value below of 1 ohms as per following specifications (a) Earthing rod, 25mm pure copper hollow Earthing Rod with strip I pipe Design Length 3m. Copper Terminal of 100x50x5 (b) BFC Compound The BFC is carbide based having very high electrical conductivity. BFC having high moisture retaining capacity BFC is hygroscopic, nonmagnetic and non - corrosive in nature and in ROHS compliant (c ) Installation The Earthing electrode will be placed in the ground after a bore is drilled to the depth of 3.5m The Bore drilling will be done with the help of pneumatic boring machine.] 50KG BFC will be placed in the bore to cover the Earthing rod from all sides. BFC will be poured in slurry form in properly mixed condition . Earth pit cover square 300x300x240mm to be provided to cover the Earth pit. The Earth pit cover shall be made of Reinforced FRP and should be capable of carrying .The weight of 5 tones.Pit cover including brazzing of all the joints upto the test point complete and Earth Pit Indicaation Plate of MS 450x300x5 mm thick welded to AL 50x50x5mm x1.0 Mtr long,painted with one coat of primer and two coats of synthetic enamel paint(black colour)all as specified and directed.Make : U-Protect,Ashok,JEFF Techno. Note : 1) Electrode must be tested for short crcuit test of minimum 40ka at CPRI/NABL & test certificate of manufacture company submitted by contractor 2) Existing earthing value and After installation company testing & checked test with earth value certificate provide by contractor. |
| 17 | M&L for Loose filling with aggregates of gauge 40 to 80 mm in substation premises including cleaning of substation complete all as specified and as directed at site by Engineer in Charge . Please Enable Macros to View BoQ information |
| 18 | M&L for Loose filling with aggregates of gauge 40 to 80 mm in substation premises including cleaning of substation complete all as specified and as directed at site by Engineer in Charge . Please Enable Macros to View BoQ information |
