CWEAFJ-05/2022-23 SPECIAL REPAIR/REPLACEMENT OF BER TRANSFOMER OF CAPACITY 3.15 MVA AT 33KV MRS STATION UNDER GE (AF) UDHAMPUR

Amount

Excavating in trenches, not exceeding 1.5metre wide and not exceeding 1.5metre depth for foundation, etc., and getting out in any type of soil, complete all as specified and directed.

Excavating in trenches, not exceeding 1.5metre wide and exceeding 1.5metre depth but not exceeding 3.0metre depth for foundation, etc., and getting out in any type of soil, complete all as specified and directed.

Returning, filling in, including spreading, leveling, watering and well ramming in layers not exceeding 25 cm thick any type of soil, complete all as specified and directed.

Removing excavated soils to a distance exceeding 50m but not exceeding 100m and depositing where directed at a level not exceeding 1.5m above the starting point complete all as specified and directed.

Cement concrete type C-2 1:3:6 (using 40mm graded crushed stone aggregate) as in foundation filling and mass concrete, complete all as specified and directed.

Cement concrete type B-1 1:2:4 (using 20mm graded crushed stone aggregate) as in coping of poles, complete all as specified and directed.

Steel Tubular swaged Poles type 410 SP-55 (11.0 metre long) conforming to IS : 2713 Part-I to III 1980, complete with 6 mm thick cast iron base plate, finial taper plug, MS bolts, nuts, screws including painting 06 Nos bands / strips of 30cms each starting from the bottom of the pole (i.e. above the PCC coping) with white and red post office box colour in alternate strips and two coats epoxy based paint aluminium grade finish to the remaining external surface over one coat of primer and numbering of poles with black synthetic enamel paint in 2.5 cm height including black bituminous paint two coats on steel surface embedded in concrete foundation all as specified and as directed.

Cross arm bracings, supports, clamps and back plates fabricated from structural steel sections including nuts, bolts, washers, drilling holes for bolts, in any shape or size as indicated or directed and also inclusive of two coats of aluminium paint over one coat of red oxide primer including dismantling / taking down old unserviceable structural steel all as specified and as directed.

Aluminium conductor steel reinforced (ACSR) including binding to insulator with suitable size of binding wire and size of conductor Weasel (6/1 x 2.59 mm), Squirrel (6/1 x 2.11mm) or Ferret (6/1 x 3.00 mm) all as specified and as directed.

Disc type insulator, porcelain, vitreous 145 mm high and 255 mm dia ball and socket type, white, brown or green with 3 in series with tension clamps for conductors, working pressure 33KV all as specified and directed.

Stay Assembly complete comprising of 7/3.15 galvanised stranded stay wire of required length fixed to pole with including FI clamps 50 x 6 mm size bolt, nuts, washers, GI steel stay rod 20 mm dia and 1800 mm long stay bow 400 x 414 mm, GI steel plate 300 x 300 x 6 mm, two nose thimble loop insulator of size 90 x 140mm clearance hole 16 mm including two coats of aluminium paint over one coat of red oxide primer on exposed mild steel work as shown in electrical plate No 1 of SSR part 2009 on page No 495 including the following :- (i) Excavation in post holes in any type of soil, returning filling & ramming including disposal soil to a distance not exceeding 50 metres from starting point. (ii) PCC 1:3:6, type C-2 using 40 mm graded stone aggregate as in foundation complete all as specified and directed.

Loop Type Insulator, vitreous porcelain, white, brown large size with overall dimensions 90 mm x 140 mm, clearance of hole 25.5 mm complete all as specified and directed.

Galvanised Stay Strand 7/3.15 mm complete all as specified and directed.

Lightening Arrestor (as per existing Make / Model / Capacity to be fixed on existing structure) HT 33 KV 10 KA Station Class, discharge capacity 65 Kilo Amps complete all accessories including clamps, nuts and bolts, washers and connection to earth with 32 mm x 6 mm GI strip complete including taking down old unserviceable Arrestor all as specified ad as directed.

Switch Air break, gang operated (GOD) with 09 Nos insulators, Outdoor type, mechanically operated, suitable for horizontal or vertical mounting rotating type, provided with locking arrangements consisting of MS channel, operating rod 25 mm dia GI pipe medium grade for operating from 1.2 metre above Ground Level with locking arrangement complete confirming to IS-1318 of 1972 rated voltage 33 KV and for current rating 800 Amps, fixed in repairs, complete, all as specified and directed.

33 KV 800 Amps, 25 KA for 3 Sec Three Phase, Double Break Centre Post Rotating Motorised Mechanically Gang Operated Off Load Turn Twist type Isolator with one Manual Operated Earth Switch. The switch shall have pressure relieving type contact and completed with operating & phase coupling pipe, motor operated mechanism fitted all accessories including 1 HP Motor, Gear Box electrical interlocking arrangement, 8 No + 8 NC auxiliary switch for main switch etc, 9 stack (2 unit/stack) 33/36 KV post type insulator. The earth switch shall be mechanically interlocked with main switch fitted with 6 NO + 6 NC auxiliary switch only. The price is including the cost of terminal and structure, panel, power & control wiring from isolator position to Power House and contractor shall deemed to be quoted in schedule rate as 01 (One Job) complete all as specified and directed.

Danger Notice Plate, for HT, of size 25cm x 20cm x 1.5mm thick mild steel sheet, vitreous enameled, white with letters, figures and conventional Skull & Bones in signal red colour and fixed with MS clamps, bolts and nuts of appropriate size, all as specified and as directed.

XLPE insulated Stranded Compact Circular Aluminium Conductor, conductor screened with extruded semi conducting compound in combination with Copper Tape, cores laid up, inner sheath of PVC, galvanised steel flat strip armoured and overall PVC sheathed cable confirming to IS 7098/(Part-II) 2011 with latest amendments. voltage grade 33 KV Earthed 3 Core x 150 Sqmm Power Cable complete all as specified and directed. Note : Cutting of Road or PCC for laying of protection pipe and subsequently making good the disturbed surface shall be done by the Contractor all as directed at site. The cost of the same shall deemed to be included in the Quoted Rate of this item and nothing extra from the department shall be admissible on this account.

Cable Jointing Kit for 33 KV 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 120 to 150 Sqmm complete all as specified and as directed.

Cable Jointing Kit for 33 KV grade cable for Straight Through Heat Shrink type joint complete with jointing material and accessories suitable for 3 Core XLPE armoured aluminium conductor cable of size 120 to 150 Sqmm complete all as specified and as directed.

Sand cushioning to underground cables using new dry river sand laid in trenches 8cm thick below the cable and 15cm thick above the cable after laying and stretching the cable complete, punned to 18cm, complete all as specified and directed Note : Punned thickness of 18cms shall be measured for payment.

Supplying and laying un-reinforced precast concrete cable cover, Class HVP, type 1 with peak, size 300mm x 180mm x 40mm, complete all as specified and as directed.

Steel pipe galvanised light grade, 150 mm bore laid in trenches or under ground/floor or road of fixed with pole for protection of cable including GI clamps with bolts nuts and washers complete all as specified and directed.

PCC Cable Route Indicators of size 600mm x 300mm x 50mm with letters inscribed on both sides as "MES HT CABLE" or "MES LT / HT CABLE" of specified font size not less 60 mm as directed and mounted on PCC block of size 450mm x 300mm x 300 mm complete of PCC 1:2:4 type B-1 (using 20mm crushed stone aggregate) and including painting with cement based paint complete all as specified and as directed.

Supply, installation, commissioning, and testing of 3.15 MVA (3150 KVA), 33/11 KV, Copper Wound, Oil Immersed, naturally self cooled, Outdoor type, Power Transformer, Step Down with Tapping Range (+)5 % to (-) 15 % in steps of 1.25 % by On Load Tap Charger 16 Steps * 17 Positions with RTCC alongwith functioning of Auto Manual & AVR Panel, Vector Group Dyn 11 alongwith double Float Bychhloz Relay with contacts. Transformer shall conform to IS 2026. The salient feature of transformer shall be as follows :-

(a) (i) Standard: IS:2026 with copper wound and Oil Dielectric Strength more than 60 KV. (ii) Outdoor Installation (iii) Vector group : Dyn 11 (iv) Rating : 3150 KVA (v) Cooling System : ONAN (vi) Winding Copper (vii) (a) Max System voltage Ratio HV/LV (36Kv/12 KV). (b) Rated Voltage Ratio : 33 KV/11 KV. (viii) Over voltage (continuous) operating capability & durations 112.5 % of rated voltage. (ix) Anticipated continuous loading of HV / LV continuous 110% rated current. (x) Neutral shall be brought out on LV side. (xi) Insulation Level - • HV Power Frequency (KV RMS) : 70

• LV Power Frequency (KV RMS) : 28 • HV Impulse with stand Voltage (KV peak) : 170 KV • LV Impulse withstand voltage (KV : 75 • Temperature Rise of Oil/Winding over design ambient temperature of 50 degree C 45 / 55 degree C. (xii) No Load Losses at Rated Voltage and Frequency (KW- 3 Kw). (xiii) Load Losses at Rated Current & 75 degree Celsius (KW-16 KW). (xiv) Impedence : 6.25 %.

(xv) Termination of 33 KV side - Outdoor Bushing. (xv) Termination of 11 KV Side - Cable Box and all accessories (xvi) First Filling of Filtered Dehydrated Oil and confirming to IS-335 all accessories required like OLTC, RTCC Panel, AVR. Lifting Lugs, Oil Conservator Tank, Top Filter Valve, Silica Gel, Breather, Drain Valve, Marshaling Box, Buccholz Relay (Double Float Type having contact for Alarm & Trip), Explosion Vent, Earthing Terminals, Air release Plug, Base Channel, Prismatic Oil Level gauge, Oil Temperature indicator with contacts for alarm & Trip, Marshaling Box, (Metal enclosed / Vermin / Dust Proof fitted with required Glands, Heater, Glass Door shall be IP-55 or superior), Winding Temperature Indicator with Contacts for Alarm and Trip required for successful running of Transformer at site.

Notes : 1. The core shall be constructed from high grade, non ageing, prime grade CRGO with M-4 grade or better, silicon steel laminations. 2. The Transformer shall be tested as per the relevant IS standards and as specified in PS Clause 7.12.1.1 at the Manufacturers Testing Facility. All these tests shall be carried out before the dispatch of Transformer. 3. The drawings of Transformer, Marshalling Box, RTCC etc. shall be got approved from GE.

4. The cost of disconnecting the existing 3.15 MVA Transformer from MRS and depositing the same in the MES yard shall deemed to be included in the quoted rate. 5. Control wiring upto CR panel in Main Power House rate shall deemed to be included in the quoted rate.

Transformer Platform of size 3.0m x 3.0m x 1.0m (0.40m below the Ground Level and 0.60mm above the Ground Level) including excavation and earth work in trenches in any type of soil, PCC 1:4:8 type D-2 for foundation, Brick Work in cement mortar 1:4, PCC 1:2:4 type B-1 as in coping, plaster of 15 mm thickness in cement mortar 1:6 on brick surface / complete with 75mm thick PCC 1:4:8 type D-2 as in sub base of floor with topping of PCC 1:2:4 type B-1 100 mm thick in floor and finished fair (without using extra cement) returning filling in and removal of surplus soil to a distance not exceeding 50 metres including three coats of white wash on cement work including ISMB 100 mm channel 2 Nos for fixing transformer complete all as specified, shown on drawings and as directed.

Maintenance free safe Earthing System (set of one electrodes to be used as grid for equipment earthing), each pit complete with 01 Number UL 467 approved / CPRI tested copper bonded (copper cladded earth rod with 250 microns of copper cladding) earth rod 17.2mm dia 3000 mm long electrode buried in ground to bore holes 120 mm dia. vertically to a depth not less than 3.50 Mtr deep below ground level with top edge of earth electrode at a depth not less than 500 mm below normal ground level, provision of copper bus bar of size 200 mm x 2 5mm x 6 mm for inter connection with copper earth lead strip 25 mm x 3 mm and further connected to test point terminal block all as directed. complete including dismantling old unserviceable. all as specified and as directed.

Notes : 1. Each Earth Pit shall include minimum 50 Kg (two bags of 25 Kg each) NABL Lab Certified back fill and 06 kg (two containers of 03 kg each) NABL lab certified conductive gel (LOHM-EG-03) compound for filling bore holes with mother soil mixed in 1:3 ratio (one part of back fill compound and three parts of mother soil), so as to achieve earth resistance below 01 Ohm including excavation of polyp it chamber with polyplastic Pit Cover (cost of Polypit Chamber with Polyplastic Pit Cover shall be deemed to be included in the rate quoted.

2. Copper strip beyond Test Point shall be measured and paid separately. 3. Earthing resistance result shall be less than 1.0 Ω . If the result comes more than 1.0 Ω, the contractor shall carry out the earthing at separate location / site given by the Engr-in-Charge after taking out of earth electrode without any extra cost to the department. 4. Contractor shall give Guarantee of minimum 5 years for the earthing carried out by him. 5. Test Point Terminal Block shall be measured and paid separately. 6. The Contractor's Quoted Rates shall be deemed to include for dismantling / taking down of old unserviceable earthing of any type and making good the disturbed surfaces and nothing extra shall be admissible on this account.

7. Any other Fittings / Fixtures if technically required for achieving desired results (if not included above) shall be provided by the contractor without any extra cost to the Govt.

Earthing complete as per Electrical Plate No 05 of MES SSR Part-I with galvanised Steel Plate Earth Electrode 60cm x 60cm x 6.0mm, buried directly vertically in ground in a pit of depth not less than 2.5 metres below ground level connected to and including galvanised iron or steel earth strip 32 x 6 mm by means of bolts, nuts, check nuts and washers of galvanised iron or steel. Earthing strip protected by galvanised iron or steel pipe 50 mm bore medium grade and connected to continuous earth wire on Pole / Test point. Watering pipe shall be 20 mm bore GI medium grade. The earthing shall be inclusive of excavation and earth work in any type of soil, charcoal, salt, funnel, PCC pit and RCC cover complete all as specified & directed.

Notes : 1. The cost of following items shall be deemed to be included in quoted rate :- (a) Earth Electrode (b) Main Earthing Lead from Earth Electrode to Test Point and further to the equipment to be earthed upto a distance of 7.5 meter. (c) Material and Labour for connecting earth electrode and earthing lead as specified. (d) Adequate quantity of charcoal, dust, common salt and ground enhancement material as required to bring the earthing, resistance as per direction. (e) The total labour involved including testing of earth net work. (f) Excavation and Earth Work or drilling hole for electrode. (g) PCC Pit and CI Cover

(h) Funnel with watering pipe, wire mesh and copper lugs etc as specified. (j) GI Protection Pipe of size specified for protection of earthing lead from mechanical injury or tampering. (k) On testing after completion if the desired earth resistance is not obtained the earthing will be redone at no extra cost.

Test Point Terminal Block made of gun metal or phosphorous bronze size 75 x 75 x 25mm drilled and screwed including 3 Nos. 8mm dia 25mm long hexagonal head screws complete including taking down old unserviceable Test Point Terminal Block all as specified and directed.

Copper strip 20 x 3.15mm with saddles and fixing screws etc. for roof conductors and down conductors above ground to interconnect the earth pit to equipment all as specified and directed. Note : 1. Copper socket and connector bolts, nuts, washers and drilling holes shall be deemed to be included in the unit rate quoted. 2. Excavation and Earthwork wherever required shall be carried out and rate quoted shall be included this aspect.

Earth Continuity Conductor or main Earthing Lead of size 32 x 6 mm dia GI Strip fixed to wall on batten or recess or chases or buried in ground or drawn in Conduit / Pipe or fixed to Poles / Gantry or any other indicated situation for loop earthing etc complete all as specified and directed.

JCC ENGINEERS PRIVATE LIMITED

R D Bansal

vijay builders

SHIV CHARAN GUPTA AND SONS

JAZZCON ENGINEERS PVT LTD

Bidder Name

R D Bansal

vijay builders

SHIV CHARAN GUPTA AND SONS

JAZZCON ENGINEERS PVT LTD

JCC ENGINEERS PRIVATE LIMITED

N K BUILDERS