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| 1 | Supply, installation, testing & commissioning of transformer of capacity 315 KVA step down outdoor type copper wounded 11/0.433 KV (at no load) AC 3 phase 50HZ on secondary side double wound oil immersed naturally all air cooled (ONAN COOLED) with external cooling tubes /radiator ,delta connected as on primary and star connected with natural brought on secondary) side and having tapping at (±)7.5 @ 2.5% each steps to be changed by hand operated OFF LOAD tap changing gear .The maximum temperature rise should not exceed 45 degree centigrade in oil and 50 degree centigrade in HV/ LV winding when measured by the resistance method after continuous full load run in ambient temperature the transformer shall confirming to IS 1180 Part-I: confirming to as perlatest amendment,EEL-Level III as latest IS norms(Total losses @ 50% load -890W, total losses @ 100% load -2440 watt) and comprising of following accessories complete all as specified and as directed:-(a) HV side Cable box with 03 Nos porcelains HV bushingcomplete with bushing rods and nuts washers and cable glands suitable for reception of out 3 core 95 Sqmm cable 3 runs, HT Cable 11000 Volts grade XLPE insulated heavy duty including gland complete.(b) 01 No cable end box on LV secondary side consisting of 04 Nos porcelain bushing (One No Neutral and Three No for phase connected bushing) with bushing rods and nuts washers and cable glands suitable for reception of out 3.5 core 240 Sqmm cable 2 runs, LT 1100 Volts grade XLPE insulated heavy duty including gland joint complete.(c) Oil conservator with filter type drain valve and oil level gauge.(d) Dehydrating breather with first filling of dehydrating agent.(e) Explosive vent. (f) Thermometer pocket including temperature gauge.(g) Two earthing terminals on tank body to facilitate fixing of 32x6mm GI strips.(h) One No thermometer dial type vapour pressure type having range 0-120 degree centigrade with maximum temperature indicator and re-setting device to maximum temperature including needle of temperature gauge: Max reading painted terminal.(j) Oil level gauge. (k) Oil drain filter valve. (l) Oil filling hole on top cover with plug. (m) Air release valve/plug. (n) 4 Nos plain solid cast steel detachable rollers. (o) First fill of transformer oil conforming to relevant IS and tested upto 60 KV dielectric strength. (p)Two No lifting hook at side of transformer. (q) 1Nos Breather duly filled with silicajel crystals capacity 1000g. (r) Rating plate with terminal plate. (s) 04 Nos Cast Iron Wheels. Note : (i) The erection, installation of transformer shall be done under the supervision of JE/ Egr-In-Charge & OEM Test certificate ,purchase vr of itemshall be submitted by contractor .(ii) Pre-commisioning test of Transformer will be carried out by the rep of AO, required T&P necessary arrangements for testing to be provided by the contractor and cost of the samedeemed to be included in the quoted rate. |
| 2 | Note : (i) Providing platform for transformer of size 3.0x3.0x1.5m high from GL including excavation in trenches not less than 0.6 mtr, PCC 1:5:10 type E2 for foundation, brick work in cm 1:6, PCC 1:2:4 type B1 in copping, plaster 10mm thick in cm 1:6 om brick /complete surface PCC 1:4:8 type B1 sub base 75mm thick, as in flour PCC 1:2:4 type B1 100mm thick floor using extra cement returning filling and removal on surplus soil, including 2 Nos ISMB 100mm channel painting with 2 coat aluminium paint over a coat of red oxide primer and 3 coats of white washing on cement work for fixing transformer including ramp of suitable size mounting of transformer complete all as specified and as directed.(ii) Cost of platform of transformer deemed to be included in the quotated rates. |
| 3 | Supply install testing and commissioning ofof outdoor type , 03 way RMU (Ring Main Unit) 11 KV, 630 Amps, 21kA-3 Sec, IP 54 SF6 insulated, One side Extensible,consisting of one Nos (01) motoraised Load break switch (Incomer) and two Nos (02) motorised vacuum circuit breaker (Outgoing) & Metering Panel Bus PT and Aux. transformerwith Top LV, self power inbuilt powerpack, configuration ( CVV+M), inside robotically welded stainless steel 304 (Non Ferrite non Magnetic Grade) tank having min thickness 2.5 +/- 0.5mm with IP 67 degree of protection and enhanced BIL of 75 kVp internally to manager voltage surges and Air Insulated Metering Module of Class-0.5. RMU should be provided with internal busbars, as well as earthing busbars of electrolytic grade copper, padlock provisions & complete with all accessories. The complete RMU must be type tested for Internal arc21 KA for 1 sec with AFLR Classification for Gas tank & Cable Chamber as per IEC 62271-200. HT RMU shall preferably have on-site-repairability features such as site replaceable bushing/ coupling/ mechanism and gas refilling to have very less downtime in the event of bushing breakage and restoration can be done at site immediately without sending the RMU to OEM Works, the Vaccum Interrupter must RMU manufacturer\"s own make. The earthing busbar shall be provided inside each cable compartment for solid earthing of cable shields. The outer hinged main door should cover entire front of switchgear including cable doors for providing fail-safe protection complete all as specified and as directed. The unit shall include the following with all necessary standard fitting as required at site.(A) Load Break Switch consist of following accessories :-(i) Safe Plus type C: Cable switch 12kV, 630A 21 KA/ 3sec (ii)Snap action mechanism for Motorised operation, Control Voltage: 110/24V DC(iii)Integrated earth switch making fault type manual operation (ES) (v) Right angle boot to be provided in each module (vi)Fault passage indication system EF+SC (for LBS only) (vii)Cable covers with self Interlocking mechanism between doors, earth switch, disconnector & VCB.viii)Interlocked Cable box for front termination of the cable suitable upto 3 core 300 Sqmm,11 KV XLPE cable (IP3X). Safety interlocked to prevent access to cable termination in live-condition. (ix)Cable covers with self Interlocking mechanism between doors & earth switch,(xi)Necessay interclocking arrangement for safety and operations |
| 4 | (B)vacume circuit breakerconsist of following accessories :-(i)Vacuum circuit breaker 12 KV ,630A,21 KA/Sec Stored energy mech. for Motorized Operation, 24V DC , Integrated manually operated disconnector switch (DS) and earth switch fault making type (ES) (ii)Microprocessor based Numerical Protection Relay for Circuit Breakers - REX615, Feeder Protection and Control Relay, Protections 50,51,50N,51N,46,49,67,67N,32,27,59,25,81U,81O,95, Measurement for 3I,I0,3U,U0,Kw,KVA,PF,Hz,Kwh, 16 DI + 10 DO, One front RJ45 Port, One Rear RJ45 Port for IEC-61850 Protocol, Drawout Type with CT Shorting feature, Graphical LCD Display (iii)Capacitive voltage indication fixed type system with LED for all feeder and FPI in all load break switch feeder. (iv)SF6 Gas pressure indicator on the gas tank.(v)Operating sequence of VCB must be O-0.3Sec-CO-3 Mins-CO amd suitable for 10,000 mechanical operation. (vi)CT shall be minimum 40/1A ,2.5VA , 5P10 - 3 nos. for protection (vii)CT shall be minimum 40/1A ,2.5VA , Class 0.5 - 3 nos. for metering (viii)Right angle boot to be provided in each module (ix)Interlocked Cable box for front termination of the cable suitable upto 3 core 300 Sqmm,11 KV XLPE cable (IP3X). Safety interlocked to prevent access to cable termination in live-condition. (x)Cable covers with self Interlocking mechanism between doors, earth switch, disconnector & VCB. (xi)Necessay interclocking arrangement for safety and operations (xii) Multifunction meter, (C) BUS PT Metering Module Unit :-(i) Indication lamps – “R”, “Y” & “B (ii)Bus VT shall be 11KV/V3/110V/V3 ,20VA , Class 0.5 - 3 nos. for metering (iii)Auxiliary VT shall be 11KV/230 ,500VA for AC supply input to Battary Charger. (iv) Space Heater with thermostat(D) Additional equipment :-(i) temprature compansated SF-6 gas monitoring manometer(ii) One No. Operationg Handle for Manual Operation(i)self power inbuilt power pack unit for relay 24VDC/110V or as per OEM standard.Note: Above switchgear shall confirm to all relevant IEC/IS Standards and PCC Foudationincluding earth work as per manufacturer insutruction shall be provided and cost deemed to be included in the quoted rates. |
| 5 | Supply, installing, testing and commissioining of LT cubical panel board, 440 Volts, 50 Hz, 3 phase, 4 wire out door type weather vermin, dust proof front operated with adequate air ventilation at sides and back fabricated out of 3.15 mm thick CRCA sheet with double door shutter and locking arrangements, cable trays cable lugs etc including provision for taking out incoming and outgoing cables duly marked with relevetted letter plates of appropriate size for each feeder cables danger boards etc, suitable to accommodate and including the following mentioned fittings;mounted on angle iron frame 50x50x6mm and having heightnot less than 60 cm above GL and foundation of PCC 1:2:4 type B1platform; nut,bolts, washers etc for grouting and painting with powder coated epoxy finish of approved colour over a coat of red oxide primer with all accessories all as specified and as directed comprising the following:-(i)Bus bar chamber consistingof four Nos aluminium bus bar duly sleeved of capacity 800 Amps for phases and400 Ampsfor neutral duly insulated with PVC sleevesRYB, mounted on heavy dutyepoxy insulation in separate compartment. (ii) LED type indicating lamps (RYB) with holders controlled by fuzes and switches. (iv)Panel board internal wiring with suitable rated PVC insulated copper conductors.(v) MCCB 500 Amps,415V, 4 Pole, 50 KA - 01 No (In coming)(vi) MCCB 400 Amps, 415V, 4 pole, 50 KA - 01 Nos (Out going)(vii) MCCB125Amps, 4 pole, 415 V, 16 kA-01 Nos |
| 6 | Material and labourfor provision of earthing complete with galvanized iron earth plate electrode 600 mm x 600 mm x 6 mm thick buried directly in ground (earth pit not less than 2.25 m deep below normal ground level) with top edge of the plate not less than 1.5 m deep below normal ground connected to galvanised mild steel strip 32 x6 mm by means of bolts, nuts, check nuts and washer of galvanized steel, watering pipe of 20 mm bore galvanised iron medium grade and 40 mm bore galvanised iron light grade for earth strip protectionincluding all excavation, earth work in any type of soil, PCC pitin PCC 1:2:4 type B-1 and RCC 1:2:4, type B1 for precast chamber cover 50 mm thick, reinforced with welded steel wire fabric or XPM Jali (weight not less than 4.00 Kg / sqm),with charcoal, salt, funnel complete all as shown in the electrical plate No 3 of SSR part –I and testing on completion. Note : (i) Earth result after installation completely should be less than 5 Ohm .(ii) Quoted rates shall be deemed to include for earth strip with protection pipe of 7.5 M length. (ii) PCC chamber shall be constructed at least 1.5 mtr away from the earth electrode and pipe for watering shall be provided in slanting manner. |
| 7 | Supply, laying, jointing, commissioning and testing cable HT XLPE insulated screened PVC bedded, galvanized steel strip or wire armoured, electric power cables (heavy duty) 11000 Volts grade(Earthed) with stranded aluminium conductor suitable for earth system of 95 sqmm 3 core cross sectional size ISI marked as per IS 7098 part I laid in trenches/ laid under floors/ laid under ducts or fixed on poles etc, complete all as specified and as directed. |
| 8 | Supply, laying, jointing, commissioning and testing cable LT XLPE insulated screened PVC bedded, galvanized steel strip or wire armoured, electric power cables (heavy duty) 1100 Volts grade with stranded aluminium conductor suitable for earth system of 240 sqmm 3.5 core cross sectional size ISI marked as per IS 7098 part I laid in trenches/ laid under floors/ laid under ducts or fixed on poles etc, complete all as specified and as directed.Note for srl Item No 5 & 6 : (i) Sand cushioning, cable protection, GI protection pipe, clamps, jointing kits and excavation & earth work shall be measured & paid for separately.(ii) Road cutting/floor cutting /cutting holes etc in walls required for laying/fixing of cable etc shall be made good as per existing. Nothing extra shall be admissible on this account. Quoted rates shall be inclusive of the above provisions.). |
| 9 | Supply and fix for cable jointing kit for 11 KV grade cable for indoor type termination Heat shrink type joint complete with jointing material and accessories suitable for 3 Core XLPE armoured aluminimum conductor cable of size95 Sqmm, complete all as specified and as directed. (Note :- The jointing material like long sleeve for transformer connection and other connected items like cable gland, gas kit etc will inclusive in above rate.) |
| 10 | Excavation in post holes in soft/loose soil not exceeding 0.5 cum getting out, returning filling in and ramming earth or broken rubble mixed with earth around in layers not exc 25cm watering and removing surplus materials to a distance not exc 50m and making good surface complete. |
| 11 | M&L for PCC 1:4:8 type D-2 (using 40mm graded stone aggregate) as in foundation filling and mass concrete complete all as specified and as directed. |
| 12 | M&L for PCC 1:2:4 type B1 (using 20mm graded stone aggregate) as in foundation filling and mass concrete complete all as specified and as directed. |
| 13 | M&L for mild steel work as in posts or struts in fencing including cutting tops to shape as directed, drilling holes, notching for wire etc flat iron fillets (for securing wire mesh etc) including all necessary bolting or riveting etc and similar work conforming to Fe-290 Gde E-165 complete all as specified and as directed. |
| 14 | S&F mild steel screw bolts 5 to 10mm dia (machine made) with hexagonal or square heads at one end and screwed the other to be fittid with washer and one hexagonal or square nuts,exc 5cm but not exc 10 cm long, diameter of neck 5 to 10mm, complete all as specified and directed. |
| 15 | S&F mild steel round bars 10mm dia and over as in strenghtening bars for chain link fencing conforming to Fe-290 Gde E-165 complete all as specified and directed. |
| 16 | Fixing only chain link fencing including lines wires, any mesh size and type to any of standards, rails, straining bolts,etc including provn of binding wire complete all as specified and directed. |
| 17 | Supply only chain link MS galvanised fencing conforming to IS 2721:2003 including line wires of 4mm dia straining bolts etc including provn of binding wire complete all as specified and directed. |
| 18 | S&F Galvansed 2 strand steel barbed wire 2.24mm dia barbed with 2mm dia bars at 75mm spacing and straining and fixing to any typeof standard rails straining bolts including securing or typing at crossing with and provn of galvanised mild steel wire staples or steel pins etc as directed (each line of wire to be measured) complete all as specified and directed. |
| 19 | M&L for preparation of new iron surfaces ove 10cm width or girth and applying two coats of synthetic enamel paint over a coat of red oxide, zinc chrome complete all as specified and directed. |
| 20 | S&F Framed work as in doors or gates of angle or other section with gusset plates, rails, braces, etc., complete, drilled for fixing of steel sheeting or other covering. Doors, etc. to be prepared for hanging or sliding with and including either hooks and hinges or steel hanging door fittings (exclusive of steel sheeting or other covering,running rails and guides) and hanging; also fastening and fixing complete confrming to Fe-290 (Gde-E-165).complete all as directed. |
| 21 | Excavating in trenches, n exc 1.5 m wide and n exc 1.5 m in depth; for foundation, etc. or for shafts, wells, cesspits, manholes, pier holes, etc. n exc 10 sq m on plan and n exc 1.5 m in depth and getting out in hard / dense soil/ RCC/PCC complete all as specified and as directed. |
| 22 | Returning, filling in trenches (soil), including spreading, leveling and well ramming in layers not exceeding 25 cm thick, complete all as specified and directed. |
| 23 | Removal of surplus excavated soil to a distance not exceeding 50metre and depositing where directed at a level not exceeding 1.5metre above the starting point,complete all as specified and directed. |
| 24 | Material and labour, sand cushioning with a layer of dry river sand, 80mm thick before laying of cable and 150mm thick (punned down to 100mm thick) after laying of cables, in trenches/ducts, complete all as specified and directed. (Note : Punned down thickness (overall 18cm), shall be considered for measurement and payment.) |
| 25 | Supply and laying un-reinforced precast concrete cable cover, class HV, Type 1, flat, size 300 mm x 180mm x 40mm complete all as specified and directed. |
| 26 | S&FTubes 100 mm bore, \"light grade\" galvanised, with all fitting and fixed complete to walls and ceilings or laid in floors complete all as specified and as directed. |
| 27 | M & L for Hardcore of Broken stone gauge n exc. 63mm, deposited, spread & levelled in layers n exc. 15 cm thick,watered and rolled/ rammed to a true surface all as specified and directedcomplete all as specified and directed. |
| 28 | M & L Cement concrete in foundations, filling and mass concrete Type B2, 1:2:4 (40mm grade aggregate ) complete all as specified and directed. |
| 29 | Supply and fixing Cable route indicator made of PCC HT line route indicator of size 450mm x 230 mm x 50mm above, the ground and 250mm in depth complete with Brown colour duly engraved, MES HT cable and distance/ location as directed by E-ingineer-in Charge complete all as specifide and directed. |
