Augmentation of power supply system due to Metro Rail Project at New Quarter Residential Area , Kolkata Airport

Amount

Design, Fabrication, Supply & ITC including civil foundation work of 11 KV grade, 21 KA non-extendable outdoor type 2 way Ring Main Unit (system voltage 6 KV) consisting of 01 No Direct Cable Module and 01 No Load Break Switch for Outgoing to be connected with 500 KVA, 6 KV / 0.415 KV Transformer in the same yard, housed in suitable SF6 insulated enclosure for 2 RMU units and necessary accessories etc. as required and as per the technical specification. RMU shall be suitable for outdoor operation in highly corosive atmosphere and shall be with suitable IP protection. All the HT switches shall be 3 positions switch combining the functions of switch disconnector and earthing switch.

Design, Fabrication, Supply & ITC of COMPACT SUB STATION consisting of 500 KVA, 6.0 KV / 415V Dry type Transformer with Off load tap changer switch along with all safety accessories etc., 03 nos (1 Incoming & 2 Outgoing). 630 A nominal capacity 21 KA, 6.0 KV rating VCB housed in SF6 insulated enclosure with all types of protection relays & metering (voltage & current), Tripping mechanism and emergency push-trip button and motorised spring charging mechanism; 02 Nos( 1 Incoming & 1 Outgoing). ACB, MDO type 800A, FP, breaking capacity 50 kA (Ics = Icu upto 433 v), drawout type ACB and 1 no 250A,FP MCCB(Breaking Capacity) with microprocessor based release having short circuit, over current, earth fault protection etc complete as required on LT side and as per the technical specification. (All should be in separate compartment). The CSS shall be suitable for outdoor operation in highly corrosive atmosphere and shall be with suitable IP protection and should be compatible with FRTU (Feeder Remote Terminal Unit), SCADA system on HT side to incorporate as future provisions & cable test terminals including Civil foundation work etc. as required.)

Supply of following sizes of XLPE insulated PVC sheathed aluminium conductor armoured power cable of 11 KV grade (11KV earthed system) conforming to IS : 7098 ( Part-II) amended upto date.

3 Core, 300 Sq.mm.

Laying of one number PVC insulated and PVC sheathed / XLPE power cable of 11KV grade of following size in the existing RCC/ HUME/ METAL pipe as required. Above 120 sq. mm and upto 400 sq. mm

Laying of one number PVC insulated and PVC sheathed / XLPE power cable of 11KV grade of following size in the existing masonry open duct as required. Above 120 sq. mm and upto 400 sq. mm

Supplying & making indoor cable end termination with heat shrinkable jointing kit complete with all accessories, including lugs suitable for following size of 3 core XLPE aluminium conductor cable of 11 KV grade complete as required. For 3 Core 300 Sq.mm cable

Supplying and making straight through cable jointing with heat shrinkable jointing kit complete with all accessories including ferrules suitable for following size of 3core, XLPE aluminium conductor cable of 11 KV grade as required : For 3 Core 300 Sq.mm cable

Supply of following sizes of XLPE insulated PVC sheathed, aluminium conductor, armoured, power cable of 1.1 KV grade conforming to IS 7098 (Part I), 1988 amended upto date.

3.5 Core, 240 Sq.mm.

3.5 Core, 120 Sq.mm.

3.5 Core 95 Sq.mm

3.5 Core, 70 Sq.mm.

3.5 Core, 50 Sq.mm.

Laying of one number PVC insulated and PVC sheathed / XLPE power cable of 1.1KV grade of following size direct in ground including excavation, sand cushioning,protective covering and refilling the trench etc as required.

Above 35 Sq.mm and upto 95 sq.mm

Above 95 Sq.mm and upto 185 sq.mm

Above 185 sq.mm and upto 400 sq.mm

Laying of one number additional PVC/XLPE insulated and PVC sheathed power cable of 1.1 KV grade of following size direct in ground in the same trench in one tier horizontal formation including excavation, sand cushioning, protective covering and refilling the trench etc. as required.

Above 35 Sq.mm and upto 95 sq.mm

Above 185 Sq.mm and upto 400 sq.mm

Laying and fixing of one number armoured PVC insulated and PVC sheathed/XLPE power cable 1.1 kV of following size in the existing cable Trays/ Surface including providing suitable size clamp to secure the cable in tray/ surface as required.

Above 35 Sq.mm. and upto 95 sq.mm (clampad with 25x3mm MS flat clamp)

Above 95 sq.mm and upto 185 sq.mm (clampad with 25/40x3mm MS flat clamp)

Above 185 sq.mm and upto 400 sq.mm (clampad with 40x3mm MS flat clamp)

Laying of one number PVC insulated and PVC sheathed/XLPE power cable of 1.1 KV grade of following size in the existing RCC/ HUME/ STONEWARE/ METAL/CORRUGATED PIPE as required.

Above 35 Sq.mm. and upto 95 sq.mm

Above 95 sq.mm and upto 185 sq.mm

Above 185 sq.mm and upto 400 sq.mm

Laying of one number PVC insulated and PVC sheathed/XLPE power cable of 1.1 KV grade of following size in the existing masonry open duct as required.

Above 35 Sq.mm and upto 95 sq.mm

Above 95 Sq.mm and upto 185 sq.mm

Abovw 185 Sq.m and upto 400 sq.mm

Supplying and making end termination with brass compression gland and Aluminum lugs for following size of XLPE insulated PVC sheathed aluminium conductor armoured power cable of 1.1 KV grade as required.

3.5 Core 240 Sq.mm.

3.5 Core 120 Sq.mm.

3.5 Core 95 Sq.mm

3.5 Core 70 Sq.mm.

3.5 Core 50 Sq.mm.

Supplying and installing following size of perforated painted with powder coating M.S. cable trays with perforation not more than 17.5%, in convenient sections, joined with connectors, suspended from the ceiling with M.S. suspenders including bolts & nuts, painting suspenders etc as required.

300mm width x 50mm depth x 1.6mm thickness.

225mm width x 50mm depth x 1.6mm thickness.

Supply and making cable route marker with cement concrete 1:2:4 (1 cement : 2 coarse sand : 4 graded stone aggregate 20 mm nominal size) of size 60 cm X 60 cm at the bottom and 50 cm X 50 cm at the top with a thickness of 10 cm including inscription duly engraved as required.

CAPACITOR PANEL :- Design, supply, installation, testing and commissioning of Automatic Power Factor Corrector Panel, modular type 150 kVAR (1x50 + 3x25 + 2x10 KVAR & 1 no spare compartments for providing 50 KVAR in future), 3ph, 4 wire, 415v, with thyrister switching, totally enclosed, IP 54, free standing, floor mounting, dust and vermin proof, cubicle type to be fabricated out of min. 2 mm thick Sheet steel, with provision for capacitor mounting arrangement inside the panel with Aluminium Busbars of size 40 x 10mm, interconnections, adequate number of louvers and powder coated with approved shade including supply & installation of following components and as per technical specifications: A) INCOMER:- i) 1 Nos. FP 315A,50KA MCCB with O/L,S/C,E/F microprocessor based release, with communication module RS 485, ii) 1 no. Intelligent multi function digital meter to read V, A, KVA, KW, KVAR, PF, Hz etc with communication facility (RS485 module) and LED display with 3 nos CTs, 15 VA burden, class 1.0 accuracy and control circuit wiring with 2 Amp. SP MCBs for protection., iii) 1 Set of Indication Lamps, LED type, R,Y,B and breaker 'ON', 'OFF' & 'TRIP' lamps each with 2 Amp. SP MCB for protection., iv) Microprocessor based intelligent, 8 step APFC relay with PF display and adjustable setting. B) CAPACITORS :- i) 1 nos. 50 KVAR Heavy duty capacitor units. With 50 KVAR Capacity duty contactor, ii) 3 nos. 25 KVAR Heavy duty capacitor units. With 25 KVAR Capicity duty Contactor, iii) 2 nos. 10 KVAR Heavy duty capacitor units. With 10 KVAR Capicity duty Contactor, iv) 1 nos. 5 KVAR Heavy duty capacitor units. With 5 KVAR Capicity duty Contactor C) OUTGOING SWITCHGEARS AND OTHER COMPONENTS :- i) 1 nos. 125A, TP MCCB, 50 KA.With Thermal magnatic release having Over Current and , Short Circuit Current Sattings,(Ics=Icu), ii) 3 nos. 63A, TP MCCB, 50 KA. With Thermal magnatic release having Over Current and , Short Circuit Current Sattings,(Ics=Icu), iii) 2 nos. 32A TP MCCB 50 KA With Thermal magnatic release having Over Current and , Short Circuit Current Sattings,(Ics=Icu), iv) 1 nos. 20A TP MCCB 50 KA With Thermal magnatic release having Over Current and , Short Circuit Current Sattings,(Ics=Icu), v) Thyristors with control circuit and fuses etc complete as required. vi) 1 set of space heater, vii) 8 sets of start/trip push button(LED type), viii) 8 sets of indicating lamps (LED type) for capacitor ON & capacitor OFF each with 2 Amp SP MCB for protection., ix) 2 Sets of Axial flow fans with thermostate., x) 8 Sets of Rotary operating mechanism and terminal extension / spreaders for all the MCCBs. , xi) Complete in all respect including all interconnections from the bus bars to MCCBs and MCCB to Thyristors terminal blocks for Automatic Switching "ON" and "OFF" capacitor panel described as above.

LT FEEDER PANEL:- Supplying , Installation, Testing & Commissioning of out door type double door system LT Feeder Piller Panel, cubical type, made out of 2mm thick CRCA sheet ,with. IP 54 , free standing, floor mounting, dust and vermin proof, Weather proof, Compartmentalized, sutibale for operation on 3 phase and neutral, 415 V, 50 Hz AC system with aluminium busbars including internal wiring with suitable size wires/cable interconnection, bottom, cable entry provision duly powder coated painting etc, including with DMC/SMC bus bar sapports common GI earth bar of size 25mm X 5mm at the rear with earth stud including supplying and installation of following switchgears and accessories in the Panel and as per specification. (a) Incoming:- 1 No 200A, 36 KA FP, T/M release MCCB with rotary handel, spreader links & Auxillary Contact. (b) Outgoing:- i) 2 Nos. 160A, 25KA FP, T/M release MCCB with rotary handel., ii) 2 Nos. 100A, 25KA FP, T/M release MCCB with Rotary handel, iii) 1 No.125A 25KA FP, T/M release MCCB with rotary handel, iv) 24 Nos. 6 to 32 A, SP, MCB C Series. (Note - to be connected at the output of 125 A MCCB.) (c) Busber :- 415V, Four pole 250A aluminium bus bar with colour code & sleeves -1 Set (d) Indication Lamp:- LED type R/Y/B indication lamp with 2A HRC backup fuse for the incomer (e) Metering :- Digital voltr miter - 1no.

Earthing with G.I. earth pipe 4.5 metre long, 40 mm dia including accessories, and providing masonry enclosure with cover plate having locking arrangement and watering pipe etc. (but without charcoal/ coke and salt ) as required.

Earthing with copper earth plate 600 mm X 600 mm X 3 mm thick including accessories, and providing masonry enclosure with cover plate having locking arrangement and watering pipe of 2.7 metre long etc. with charcoal/ coke and salt as required.

Supplying and laying 25 mm X 5 mm copper strip at 0.50 metre below ground as strip earth electrode, including connection/ terminating with nut, bolt, spring, washer etc. as required. (Jointing shall be done by overlapping and with 2 sets of brass nut bolt & spring washer spaced at 50mm)

Supplying and laying 25 mm X 5 mm G.I strip at 0.50 metre below ground as strip earth electrode, including connection/ terminating with G.I. nut, bolt, spring, washer etc. as required. (Jointing shall be done by overlapping and with 2 sets of G.I. nut bolt & spring washer spaced at 50mm)

Providing and fixing 25 mm X 5 mm copper strip in 40 mm dia G.I. pipe from earth electrode including connection with brass nut, bolt, spring, washer excavation and re-filling etc. as required.

Providing and fixing 25 mm X 5 mm G.I. strip in 40 mm dia G.I. pipe from earth electrode including connection with G.I. nut, bolt, spring, washer excavation and re-filling etc.as required.

Providing and fixing 25 mm X 5 mm copper strip on surface or in recess for connections etc. as required.

Providing and fixing 25 mm X 5 mm G.I. strip on surface or in recess for connections etc. as required.

125KVA SILENT TYPE DG SET WITH DG SET CONTROL MODULE :- Supply, installation, testing and commissioning of 125 KVA Silent type D.G Set with DG set controller module mounted on DG set, having AMF control Panel(separate), auto load management, inbuilt metering & protection, communicable port (RS485) etc. and acoustic enclosure conforming to latest environment protection regulations for emmission and noise levels complete with Diesel Engine of suitable BHP (considering de-rating factor if any) at 1500 RPM, water / oil cooled Radiator, four stroke, electric start, turbo-charged & after cooled conforming to BS: 5514 with all standard accessories,coupled with Alternator of 125 KVA rating, brushless, self excited, self regulated and suitable for continuous operation , generating 415 V+/-5% Volts at 0.8 PF ( lag), 50Hz, 3 phase, 4 wire system generally conforming to BS: 2613 & IS: 4722. Both Engine and Alternator shall be mounted on common channel iron base frame, with Internal Fuel tank and fuel pipe line upto 10 meter ( to be concealed under floor), exhaust pipe line upto 15 meter ( to be erected with sufficient M.S supports and insulated, hood on top). Antivibration mountings, residential type silencer, electric starter, batteries & battery charger, other standard accessories etc complete as required. ( Refer Technical specification)

Supply and fixing of flame retardant electrical insulation mat of 3.0 mm thick to withstand upto 33 kV conforming to IS 15652:2006 with upto date amendments and having minimum width 1000mm (+ 20mm). The sufficient of adhesive / compound shall be supplied to fix the insulation mat on the front/rear side of electrical installation. Mat shall be ISI marked. Its leakage curent at 11 KV shall not be more than 10 MA. The mat shall be welded by hot gas welding with filler matrial method by making V grove cut at joints with suitable welding cord of insulating material of matching colour to provide a seamless jointed surface as per IS :8002.

Supply and fixing of flame retardant electrical insulation mat of 2.0 mm thick to withstand upto 3.3 kV conforming to IS 15652:2006 with upto date amendments and having minimum width 1000mm (+ 20mm). The sufficient of adhesive / compound shall be supplied to fix the insulation mat on the front/rear side of electrical installation. Mat shall be ISI marked. Its leakage curent at 11 KV shall not be more than 10 MA. The mat shall be welded by hot gas welding with filler matrial method by making V grove cut at joints with suitable welding cord of insulating material of matching colour to provide a seamless jointed surface as per IS :8002.

Supply and laying of following size ISI marked, HDPE pipe along with all accessories like socket,bend, couplers etc. confirming to IS-4984-1995 with up to date amendments and confirming to tender’s technical specifications, terms & conditions complete with fitting and cutting , jointing etc. direct in ground ( 75 cm below ground level) including excavation and refilling the trench but excluding sand cushioning and protective covering etc. complete as required.

125mm (OD-125 mm & ID-105 mm nominal), PN-06, PE 80.

160mm (OD-160 mm & ID-135 mm nominal), PN-06, PE 80.

200mm (OD-200 mm & ID-175 mm nominal), PN-06, PE 80.

Constructing brick masonry chamber of size 1500x1500x1200mm (L x B x D) of size in cement mortar 1:4 (1 cement :4 coarse sand ) inside cement plaster 15 mm thick with cement mortar 1:3 (1 cement: 3 Coarse sand) finished with floating coat of neat cement foundation concrete 1:3:6( 1 cement: 3 coarse sand:6 graded stone aggregate 40 mm nominal size) all complete as per standard design with cover of 75 mm thick ness made by RCC in cement mortar 1:2:4( 1 cement: 2 coarse sand:4 graded stone aggregate 40 mm nominal size) in two piece with 12 mm rod handle in order to easy handling.

Constructing brick masonry chamber of size 1200x1200x1200mm (L X B X D ) of size in cement mortar 1:4 (1 cement :4 coarse sand ) inside cement plaster 15 mm thick with cement mortar 1:3 (1 cement: 3 Coarse sand) finished with floating coat of neat cement foundation concrete 1:3:6( 1 cement: 3 coarse sand:6 graded stone aggregate 40 mm nominal size) all complete as per standard design with cover of 75 mm thick ness made by RCC in cement mortar 1:2:4( 1 cement: 2 coarse sand:4 graded stone aggregate 40 mm nominal size) in two piece with 12 mm rod handle in order to easy handling.

Cutting of paved surface (flexible/ rigid) and laying of Hume Pipes/ GI/ HDPE pipe upto 150 mm at a depth of atleast 450 mm width including making the surface good with cement concrete (1:2:4)complete as required.

SITC of 40watt LED street light luminaire of Pressure die-cast Al housing, IP66 protection, having minimum 4000 lumen output & minimum CCT from 5000K to 6500K i/c necessary electronic driver, high power LED lamp suitable to operate on 230V ac power supply with supply and fixing 50 mm of medium class G.I.bend on wall etc as per tender specifications complete as required.

2 Loop Panel

Supplying, installation, testing & commissioning of smoke detector with builtin LED and mounting base complete with all connections etc. as required.

Supplying, installation, testing & commissioning of manual call boxes of MS construction in surface/recess with stainless steel chain & hammer assembly complete with glass and push button etc. as required.

Supplying, installation, testing & commissioning fire alarm sounder with facility to make announcement, mounted in M.S. box (16 SWG) with hinged cover plate & suitable for operation with amplifier i/c line matching transformer etc. complete as required.

Supply, Installation, Testing and Commissioning of single spike air terminals of 16 mm dia. of following lenghts as required and as per site conditions. The air terminal shall be manufactured with copper. The terminal shall be provided with the integrated/attached threaded base support suitable for for mounting the terminals as per site condition. The base support shall be minimum 3 mm thick and shall have inbuild connector fitting for connection of lighting conductor in such away that conductor contract area shall not be less than 40 mm on all side of the conductor. The air terminals shall be supplied with the intermediate guy-wire supports to make it stable in case of high wind speed.

1000 mm long.( 1 Mtr long) for Building

Supply, Installation, Testing and Commissioning of 25X3 mm copper strip for horizontal run on roof top of mesonery/glass/metalic work with suitable type of clamps,hardware etc. as required and as per specifications.

Supply, Installation, Testing and Commissioning of 25X3 mm copper strip for Down conductor to be installed on vertical façade of masonery/glass/metalic work, with suitable type of clamps,hardware etc. as required and as per specifications.

Supply, Installation, Testing and Commissioning of 25X3 mm copper strip for ring earthing in ground minimium 600 mm below the ground with accessories as required and as per specifications.

Supply and Installation of Test Clamp to disconnect the down conductor from the earth terminatin network for regular checks of the earth termination resistance value

Supply of earth pits & chemical earth material using ISOGEL earth ehhanced compound of 20 Kgs, ISOROD advanced chemical earth rod made with K type copper tube of 205 dia 10 fts long, 1.6 mm thick installed vertically or horizontally as per the site condition complete with flanges bends top cover heavy duty plastic inspection chamber & test link including excavation and refilling etc as required.

Supply and Installation of earthing masonry chamber of 450 mm X 450 mm dimensions or a plastic chamber inspection chamber.

Supply, Installation, Testing and Commissioning of 25X3 mm copper stripin 40 mm GI class B pipe from Test clamp to earth pit with accessories as required and as per specifications.

Excavation for foundation in soft soil including dressing of sides and ramming of bottoms, lift upto 1.5 m including getting out the excavated soil and disposal of surplus excavated soil as directed, within a lead of 50 metres.

Providing and laying in position cement concrete 1:2:4 (1 cement : 2 coarse sand : 4 graded stone aggregate 20 mm nominal size) in foundation of pump, DG set etc including form work etc as required.

Providing brick work (in width 225 mm or more) with F.P.S. bricks of class designation 7.5 in cement mortar 1:4 (1 cement : 4 coarse sand) at all levels.

Providing 15mm thick cement plaster of mix 1:4 (1 cement : 4 fine sand) at all levels.

Providing, laying and fixing following dia G.I. pipe (medium class) in ground complete with G.I. fittings including trenching (75 cm deep)and re-filling etc as required

50mm dia

80mm dia

100mm dia

150mm dia

Providing & Fixing of MS chennel Iron made of 100mm X 50mm X 6mm(9.56 kg per meter ) on the side wall of existing bricks wall of Cable trenches i/c Painting etc as required

Providing & fixing of MS Checker plate of thickness 10mm for covering of cable trenches i/c painting of approved colour etc. as required.

Youngmen Traders

PRAGYA ELECTRIC AND ELECTRONICS CORPORATION