WORK SERVICES FOR REVERTING OF BACK FEED CONFIGURATION IN POWER RING OF A TECHNICAL PROJECT (PHASE-I) AT AF STN NALIYA

Amount

Supply and installation of ONAN cooled oil immersed coper wound transformer step up 0.433/11 KV outdoor type complete with standard fittings, HT 11 KV 3 Phase, 50 Hz, LT 433 volts, 3 Phase 4 wire, all as per IS:2026 of capacity 250 KVA complete with first filling of IS: 335 ISI marked filtered & dehydrated transformer oil and other standard fittings / accessories and 7 position off circuit tap changer on HT side to vary secondary voltage within limit (tapping range +7.5% in steps of 2.5% each) with vector group Dyn-11, including necessary platform constructed with PCC 1:2:4, using 15mm stone aggregate and smooth finish using extra cement of size 2.5m x 2.5m x 1.25m with 02 Nos of of channel of size MC-100 shall be deemed to be included in unit quoted rates all as directed. (a) Quoted rates are also deemed to be inclusive of Transformer comprising following standard fittings/ accessories without any extra cost (i) NAME, RATING & DIAGRAM PLATE 1 No. (ii) OFF CIRCUIT TAP CHANGING SWITCH (IF NOT OPTED FOR OLTC) 1 No. (iii) EARTHING TERMINALS 2 Nos. (iv) LIFTING LUGS 2 Nos. (v) OIL LEVEL INDICATOR (FLUSH TUBE) 1 No. (vi) OIL DRAIN VALVE WITH PLUG 1 No. (vii) OIL FILTER VALVE WITH PLUG (on & above 160 KVA) 1 No. (viii) CONSERVATOR WITH OIL FILLING HOLE WITH CAP 1 No. (ix) THERMOMETER POCKET 1 No. (x) 4" DIAL TYPE THERMOMETER STEM TYPE & WITH MRP (If OTI Not Opted) 1 No. (xi) AIR RELEASE PLUG 1 No. (xii) SILICAGEL BREATHER 1 No. (xiii) REMOVABLE INSPECTION OPENING ON TOP COVER (on & above 160 KVA) 1 No. (xiv) EXPLOSION VENT (If PRV Not Opted) 1 No. (xv) UNIDIRECTIONAL C.I. ROLLERS 4 Nos. (xvi) ARCHING HORN SET (Only for HV Bare Bushing Type Transformer) 3 N (xviiI) One Cable end box on HV side having cable glands suitable for 95 Sqmm 3 Core XLPE 11 KV HT cable (Consisting of 3 Nos Porcelain HT bushings with brass/gun metal bushings rods complete with nuts and washers) (xviii) One Cable box on secondary (LV) side consisting of 4 Nos porclain bushing with GM bushing rods complete with GM Nuts, washers and suitable size extended copper bus bar strip for connecting of 400 Sqmm 3.5 core cable with two No cable gland suitable for 1 run of incoming LT XLPE cable of size 400 Sqmm 3.5 core. Make: Irrespective of whatver mentioned herein after the make of transformers shall be ITE Gurgaon, Siemens, Schneider or equivalent of makes in Appx 'B' to particular specifications, all as approved by GE. Note : The transformer will have its initial oil filling to appropriate level. Cost of oil including testing with desired dielectric strength is deemed to be included in quoted rates, 2. Cost of PCC plateform constructed with PCC 1:2:4, using 15mm stone aggregate and smooth finish using extra cement of size 2.5mtr x 2.5mtr x 1.25mtr with 02 Nos of of channel of size MC-100 shall be deemed to be included in unit quoted rates.

(xiii) REMOVABLE INSPECTION OPENING ON TOP COVER (on & above 160 KVA) 1 No. (xiv) EXPLOSION VENT (If PRV Not Opted) 1 No. (xv) UNIDIRECTIONAL C.I. ROLLERS 4 Nos. (xvi) ARCHING HORN SET (Only for HV Bare Bushing Type Transformer) 3 N (xviiI) One Cable end box on HV side having cable glands suitable for 95 Sqmm 3 Core XLPE 11 KV HT cable (Consisting of 3 Nos Porcelain HT bushings with brass/gun metal bushings rods complete with nuts and washers) (xviii) One Cable box on secondary (LV) side consisting of 4 Nos porclain bushing with GM bushing rods complete with GM Nuts, washers and suitable size extended copper bus bar strip for connecting of 400 Sqmm 3.5 core cable with two No cable gland suitable for 1 run of incoming LT XLPE cable of size 400 Sqmm 3.5 core. Make: Irrespective of whatver mentioned herein after the make of transformers shall be ITE Gurgaon, Siemens, Schneider. Note : The transformer will have its initial oil filling to appropriate level. Cost of oil including testing with desired dielectric strength is deemed to be included in quoted rates, 2. Cost of PCC plateform constructed with PCC 1:2:4, using 15mm stone aggregate and smooth finish using extra cement of size 2.5mtr x 2.5mtr x 1.25mtr with 02 Nos of of channel of size MC-100 shall be deemed to be included in unit quoted rates.

Supply, install, testing and commissioning of HT 11 KV, 3 Phase, 50Hz, totally enclosed metal clad SF6 switchgear having rupturing capacity upto 630 Amps, Outdoor Non-Extensible Fixed Type (IP54), RMU (Ring main unit) - 4 Way comprising of 03 Nos 630 Amp4 - manually operated Load Break Switch & 01 Nos. 630 Amps. manual charging fixed-type Vacuum Circuit Breaker, inside robotically welded stainless steel 304 (Non Ferrite Non Megnetic Grade) tank having min. thickness 3mm +/- 0.5mm with IP 67 Degree of Protection and enhanced BIL of 75kVp internally to manage voltage surges. RMU should be provided with internal busbars, as well as earthing busbars of electrolytic grade copper, padlock provisions & complete with all accessories. The RMU shall be type tested for Internal arc test of AFL 21 kA/1 sec for tank as per IEC62271-200. RMU shall have on-site-repairability features such as site replacable bushing/ coupling/ mechanism and gas refilling at site. The earthing busbar shall be provided inside each cable compartment for soilid earthing of Cable sheilds. The outer hinged main door should cover entire front of switchgear including cable doors for providing fail-safe protection: The unit shall include the following with all necessary standard fitting as required at site. (a) 01 Nos. Breaker module consisting of following accessories : 11kV, 630A fixed-type Vaccum Circuit Breaker module for making and breaking of fault current aiongwith disconnector + Earth Switch of full making capacity Short time current - 21KA/ 3 sec, MOing Capacity - 52kAp Auxiliary contacts - 1 NO + 1 NC Stored Enegry mechanism with manual spring-charging, associated closing/tripping coils, integrated non-removable spring-charging operating handle and ON/OFF push buttons mechanically latched to the mechanism Interlocked Cable box for front termination of the cable suitable upto 3 core 300 Sqmm, 11 KV XLPE cable with double-door arrangement (IP54+1P3X). Safety interlocked to prevent access to cable termination in live-condition. Right angle boots (push on type) Numerical based self-powered OC+EF Protection Relay, providing OverCurrent (mini setting 20%), Earth-. Fault (min. setting: 10%) 03 Nos 100/1, 2.5VA epoxy insulated, Ring Core CTs for proteCtion (Acc.CI.5P10), installed away from bushings to prevent saturation of core. Suitable site replacable Cable bushings situated not beyond 300mm from cable-cover to allow ease of access for installation/testing/replacement purposes. Cable covers with self Interlocking mechanism between doors, earth switch, disconnector & VCB Capacitive voltage indication fixed type system (b) 03 Nos. Load Break Switch module consisting of following accessories : 11 kV, 630A Load Break Switch module and integrated earthing switch, both with full making capacity. Short time current - 21kA/3-sec, Making Capacity - 52kAp (i) Capacitive voltage indication fixed type VPIS 9-15 kV (ii) Necessay interclocking arrangement for safety and operations (iii) One No. Operationg Handle for Manual Operation and one no. manometer (iv) Safety Interlocks Shall be provided as per relevant IEC/IS Standards and Manufacturers directions. (v) Above switchgear shall confirm to all relevant IEC/IS Standards. (vi) Vacuum interrupter should be of same make as RMU (vii) Cable bushing should be replacable at site., (viii) Min. 5 module should accommodate in one tank to avoid multiple coupling at site. Make: ABB, Schnider, Siemens or equivalent of makes in Appx 'B' to particular specifications, all as approved by GE. Note - RMU shall be placed on PCC plateform of size and design recommended by manufacturer and the cost of the same shall be deemed to be included in unit quoted rates.

S&F in repair HT Breaker Spouts with isolating contact for HT distribution system at MAFI -I, including testing & all necessary spares etc. complete all as specified and as directed by Engineer-in-Charge.

S&F in repair HT resin based busbar supporters for HT distribution system at MAFI -I, including testing & all necessary spares etc. complete all as specified and as directed by Engineer-in-Charge.

M&L for Earthing complete with galvanised steel earth plate electrode 60 cm x60 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 plate not less than 1.5 meter below normal ground level, connected to and including galvanised iron earth strip 32 X 6 mm by means of nut. bolts. check nuts and washers tef galvanised iron or steel and provision of charcoal dust and common salt packed all around the earth plate including necessary excavation and earth work in any type of soil and testing complete all as specified and directed and shown in electrical plate number 5 of MES SSR part-l(1991) (a) Excavation and earth work in any type of Soil. (b) PCC pit in cement concrete 1:2:4 type B-1, Pre cast RCC cover with suitable handle 40 mm thick in PCC 1:2:4 type B-1, reinforced with welded steel wire fabric weighing not less than1.87 Kg/ Sq meter. (c) Funnel with watering pipe of GI 20 mm nominal bore light grade and lugs etc complete all as specified and directed .1 (d) 50 mm nominal bore medium grade GI protection pipe 5 meter long for protection of earthing lead complete all as specified and directed. (e) Requisite quantity of common salt and charcoal. (f) Testing of earthing.

Supply, laying jointing and testing underground XLPE insulated, screened,. PVC bedded, galvanized steel strip or wire armoured electric power cable (heavy duty) with stranded aluminium conductor, 11000 volts grade earthed system of size 95 Sqmm 3 core confirming to IS laid in trenches, in floor, in duct, through pipes or along the pole complete all as specified and directed.

S & F cable jointing kit for 11 KV grade cable for indoor termination, heat shrink type,. joint complete with jointing material and accessories suitable for3 core XLPE, armoured, aluminum conductor cable of size 95 sqmm.

S & F cable jointing kit for 11 KV grade cable for straight through heat shrink type joint complete with jointing material and accessories suitable for 3 core XLPE, armoured, aluminum conductor cable of size 95 sqmm, Indoor/Outdoor type

S & F cable jointing kit for 11 KV grade cable for outdoor termination , heat shrink type, joint complete with jointing material and accessories suitable for 3 core XLPE, armoured, aluminum conductor cable of size 95 sqmm

M&L for Design, supply, erection, commissioning and testing of Outdoor type LT feeder pillar box, double door, suitable for 3 phase 4 wire, 415 volts AC supply and having 4 Nos Copper bus bar not less 630 Amps for distribution system and type tested at CPRI, fabricated in factory having modern fabrication and testing facility which includes seven (07) tanks pre treatment facility comprising of de-greasing, rinsing, de-rusting, rinsing, phosphating,.rinsing and passivation followed by powder coated painting (thickness not less than 80 Micron) with approved shade of RAL 7032. The feeder pillar shall be provided with suitable Neoprene rubber gasket to make it completely dust and vermin proof and degree of protection not less than IP-55 and general construction conforming to IS : 13947. The feeder pillar shall be made out of 3.15mm thick CRCA mild steel sheet and 3.15mm thick gland plate duly compartmentalized for each control gear and bus-bar, front door (02 layer) and rear Door (01 layer) opening facility and mild steel channel (75 MC) base frame at bottom and having welded equal angle of 75mmx75mmx6mm of length 0.9mtr, 04 nos, 30cm of angle shall be embedded in PCC 1:2:4, 20mm graded stone agregate below GL level and 30cm shall be above ground level of size as directed by Engr-in-charge at site. The feeder pillar shall be provided with ventilation facility in the form of louvers for better heat dissipation. Necessary cable gland shall be provided for all incoming and outgoing cables. The feeder pillar shall be comprising of the followings and all as shown in drawings :- CONTROL WIRING : All control wirings shall have to be carried out with 1100 volts rated FRLS grade PVC insulated multi-stranded type copper wire of cross sectional area 1.50Sqmm and shall be properly bunched, tied and dressed, ferrule marked for proper identification and crimped with suitable size and type of tinned copper lugs and shall be wrapped with PVC spring type tube near the door hinges. INCOMING : ACB 4 Pole, 415 V, Manual Drawout type with microprocessor release of capacity 630 Amps -01 Nos OUTGOINGS : (a) ACB 4 Pole, 415 V, Manual Drawout type with microprocessor release of capacity 630 Amps -01 Nos (b) Bakelite fuse holder with 5 Amps HRC type control fuse - 03 Nos. (c) LED Pilot Lamp suitable for 230 Volts AC supply with integral circuit and cluster LED of following colours : (i) RED - 01 No, (ii) YELLOW - 01 No, (iii) BLUE - 01 No (d) Digital volt meter 96mm x 96mm suitable to read 0 to 500 volts, accuracy class 1% - 01 Nos (e) Digital Ammeter 96mm x 96mm suitable to read 0 to 630 Amps, accuracy class 1% - 01 Nos (f) Current transformer (CT) of rating 630/5, tape wound, rated burden 5 VA - 03 Nos (g) LED indicator lamps complete with integral circuit and cluster LED, suitable to operate in 230-240 Volts AC supply - 1set of 03 Nos (Red - 01, Yellow- 01, Blue - 01) (h) 02 Nos.Danger Notice Plate duly written in Signal Red colour on aluminium plate in English and Hindi language and of size not less than 150mmx100mm shall be fixed on both front & rear door of the bus bar chamber. (Note: 1. The feeder pillar Box shall be designed in such a way that adequate workable space is made available inside the compartments and the front area of the panel shall not be less than 1 sqm and 500mm depth). 2. The contractor shall submit LT panel/feeder pillar box drawings to the Engr-in-charge for approval before procurement of material.) 3. LT panel shall be CPRI approved of make C&S/Yashi Electricals/BCH/Powertech or equivalent all as approved by GE.

Supply, laying , commissioning and testing or fixing or passing through GI pipe, of PVC bedded XLPE insulated, armoured heavy duty, electric cable with aluminium conductor, 1100 volts grade of cross section area 400 sqmm, 3.5 core including suitable size lugs and cable glands as per requirement complete all as specified and directed.

Taking out old unserviceable LT cable of any size any type from trench/duct/poles/ roof/pipe etc and keeping aside for segregation of serviceability Serviceable cable will be re-laid at same place or other place as required.

M&L for earth continuity conductor 32x6 mm GI strip fixed to wall or resses or chasses or burried in ground or drawn in conduit pipe /pipe complete all as specified and directed at site

M&L for Surface dressing for soft & loose soil not exc 15 cm deep complete all as specified and directed at site.

Excavation in trenches not exceeding 1.5 m wide and not exceeding 1.5 m in depth and getting out in soft/ loose soil, for laying of underground electric cable, pipes etc all as directed and specified.

M & L for river bed sand filling in trenches 15 cm above cable and 8 cm under the cable for cushioning/protection to cable including spreading, leveling and punning down get thick 18cm after hand punning. 18cm thickness of sand after punning down multiplied by width and length of sand cushioning shall be measured and paid for as one unit.

Supply & laying un-reinforced precast concrete cable cover, ISI marked, class LV, Type 1, flat, size 250 mm x 150 mm x 40mm abetting each other with gap between adjacent slab not exceeding 10mm over under cable for

Supply & laying un-reinforced precast concrete cable cover, ISI marked, class HV, Type 1, flat, size 300 mm x 180 mm x 40 mm abetting each other with gap between adjacent slab not exceeding 10mm over under cable for

Returning, filling in, including spreading, leveling, watering and well ramming in layer not exceeding 25cm thick complete all as specified and directed.

Removing excavated soil to a distance not exceeding 50 meter and depositing where directed at a level not exceeding 1.50 meter above the starting point complete all as specified and directed.

M&L for drilling under road/PCC path and passing GI pipe for cable protection and making good as existing complete all as specified and as directed

M&L for laying 100 mm bore GI pipe, light grade with all fittings, in crossing road/path and in pole up to junction box including necessary clamping etc. complete all as specified and as directed by Engineer-in-Charge. Make: Tata/Jindal/Swastik/Nezone/Fortune/APL Apollo/Surya Prakash

M&L for laying 150 mm bore GI pipe, light grade with all fittings, in crossing road/path and in pole up to junction box including necessary clamping etc. complete all as specified and as directed by Engineer-in-Charge. Make: Tata/Jindal/Swastik/Nezone/Fortune/APL Apollo/Surya Prakash. Note for item No.22 and 23:- Road/path cutting/drilling will be measured and paid under respective item

JAMDAGNI ENGG WORKS (BID ID -3286799)

MS ENTERPRISES (BID ID -3285549)