SPECIAL REPAIR TO REPLACEMENT OF BER CENTRAL AC PLANT WITH DG POWER BACK UP AT DSG OF OF DMRL KANCHANBAGH HYDERABAD

Amount

AC Plant Supplying, installing, testing & commissioning of water cooled scroll chillers, capacity not less than 30 TR Minimum Actual capacity (2 Nos working + 01 No standby) with multi compressors, comprising of semi-Hermati type compressors, DX-Evaporator, shell and condenser suitable expansion device for operation on R-410a refrigerants and of actual capacity as mentioned & as per specification to meet the inside design condition of temperature 23+2oC and relative humidity 55+5%. Frame work for mounting the above condenser, chiller, compressor and motor with base plate complete with anti vibration pads / springs and including necessary PCC platform as per OEM recommendations. Initial / first charge of refrigerant gas & compressor oil. The chiller operation parameters shall be Chilled water in 53.6 ºF (12.0º C) Chilled water out 44.6 ºF (7.0ºC) Max operating pressure 150 psig (water side / condenser side) Condenser water IN 96.8 ºF (36 ºC) Condenser water OUT 89.6 ºF (32 ºC) Chiller fouling factor 0.000018 m² deg K/W Condenser fouling factor 0.000044 m² deg K/W Chilling machine COP (at AHRI conditions) shall be min 4.4 and IPLV of min 5.2 & all performance requirements at ARI 550/590-1998 test condition complete all as specified and directed.

Supply, installation, testing & commissioning of Chilled water circulation monoblock pump set of capacity 3.0 HP (02 Nos working and 01 No standby) suitable for operation on 3-Ph, 415 V±10%, 50 Hz AC supply and of self-priming, single-stage centrifugal pump, capable of 3.0HP, having cast iron casing, enclosed type dynamically balanced cast iron impeller, carbon steel pump shaft, mechanical packed sealing, deep groove ball bearings, etc. with TEFC squirrel cage induction motor having class 'B' insulation, IE3 efficiency, conforming to IS 12615: 2018 and base plate, mounting channel frame, accessories and fittings, viz. pressure gauges, thermometers, drains, coupling, coupling guard, vibration isolation arrangement by means of spring / rubber type mounting duly insulated with FM approved highly- flexible, closed-cell thermal insulation of elastomeric foam based on synthetic rubber (NBR) of apppropriate thickness laminated with 12 micron aluminium foil facing with reinforced glass scrim alongwith adhesives and other necessary accessories and including necessary PCC platform as per OEM recommendations complete all as specified and directed Make: Kirloskar / Mather & Platt / Crompton Greaves / Beacon / Jyothi.

Supply, installation, testing & commissioning of condenser monoblock pump set 3.0 HP, (02 Nos working and 01 No standby) suitable for operation on 3-Ph, 415 V±10%, 50 Hz AC supply and of self-priming, single-stage, having cast iron casing, enclosed type dynamically balanced cast iron impeller, carbon steel pump shaft, mechanical packed sealing, deep groove ball bearings, etc. with TEFC squirrel cage induction motor having class 'B' insulation, IE3 efficiency, conforming to IS 12615: 2018 and base plate, mounting channel frame, accessories and fittings, viz. pressure gauges, thermometers, drains, coupling, coupling guard, vibration isolation arrangement by means of spring / rubber type mounting and including necessary PCC platform as per OEM recommendations complete all as specified and directed Make: Kirloskar / Mather & Platt / Crompton Greaves / Beacon / Jyothi.

Supply, installation, testing & commissioning of FRP induced draught counter flow single cell Cooling Tower of not less than 60 TR (01 No working and 01 No standby) rectangular shape, vertical, with uniform water distribution and optimal heat transfer, having tough Fiberglass Reinforced Plastic (FRP) casing of sufficient structural strength to withstand vibrations and wind velocity upto 60 m/s, FRP basin, rigid honeycomb type PVC fill of suitable thickness, SS sprinklers and non-clogging sprinkler pipes, FRP drift eliminator, energy efficient induced draught axial type fans with factory set and dynamically balanced blades pitch, IE3 TEFC squirrel cage induction motor, suitable for operation on 3-Ph, 415 V, 50 Hz AC supply with IP 65 protection for enclosure, conforming to IS 12615: 2018, inlet, outlet, drain and over-flow nozzle connections, etc. with accessories complete including PCC foundation as per OEM recommendation all as specified and directed by Engineer-in-Charge. Make: MIHIR / Delta / Polo / PAHARPUR.

S&F, Expansion tank of 500 Ltrs capacity for chilled water piping system duly insulated with 50 mm thick TF quality thermocol and finished with GI chikcen wire mesh and two coats of sand cement platser complete with inlet, outlet, drain and over flow connections with suitable valves and necessary fixing arrangement as required complete all as specified and directed.

S&F, make up water tank of multilayered of HDPE 5000 Ltrs capacity made up of 100% virgin material, having 100% UV stabilized white outer layer, threaded lid, extra insert lid for protection against algae formation complete with inter-connection piping and non-return valve etc and incl PCC base and plateform of suitable size as per site requirement complete all as specified and directed.

Supply, installation, testing & commissioning Factory made Double Skin chilled water Air Handling Unit floor mounted fabricated out of extruded aluminium section with 0.6 mm pre-plasticized / pre-coated galvanized steel sheet outside and 0.6 mm galvanized steel sheet inside with SISW / DlDW Backward / Forward curved centrifugal blower in MS construction, blower section, fan and fan section, fan motor TEFC type suitable for operation on 415 volts, 50 Hz +5% AC supply 6 row made of aluminium finned copper tube MS header with coil section, pre filter section with non woven synthetic media of 10 micron particle size with an efficiency of 90% polished stainless steel drain pan made out of 22 G sheet duly insulated complete with motor, belt drive packaged, guard etc. without face and bypass dampers.

(i) The AHU Panels shall be insulated with 23+2 mm thick and 40 kg/m’ density PU foam. The motor and blower assembly shall be mounted on Aluminium extruded section only. The complete AHU shall conform to standard specification. The face velocity across cooling coil shall be limited to 137 MPM max face velocity across pre filters 152 MPM, max fan outlet velocity- 487 FPM, max fan speed -1000 RPM, max fan motor speed -1500 RPM. The capacity of air handlers shall be decided corresponding to volume of air to be handled for achieving the desired inside condition complete all as specified and directed. Make: Bluestar / National / Zeco / Voltas / Daikin.

AHU- 12000 CFM

AHU- 13500 CFM

AHU- 2100 CFM

AHU ceiling suspended type - 800 CFM

Supply, laying, fixing, testing & commissioning mild steel pipe of class-C (Heavy duty) for condenser water piping including necessary fittings viz. bends, tees, reducers, flanges, air purge valves, drain valves duly jointed by welding including structural support, necessary clamps, vibration isolators, etc. including painting with one coat of primer and two coat of synthetic enamel paint of approved shade and supporting / fixing the pipe in excavated trenches or on floor / wall / ceiling with clamps, hangers, angles, channels (using anchor fastners) with necessary accessories all as specified and directed for following sizes: -

125 mm dia

100 mm dia

Supply, laying / fixing, testing & commissioning of Mild steel pipe of class-C (Heavy duty) for chilled water circulation piping including necessary fittings viz. bends, tees, reducers, flanges, air purge valves, drain valves duly jointed by welding including structural support, necessary clamps, vibration isolators, etc. including painting with one coat of primer and two coat of synthetic enamel paint of approved shade and supporting / fixing the pipe in excavated trenches or on floor / wall / ceiling with clamps, hangers, angles, channels (using anchor fastners) with necessary accessories duly insulated with FM approved highly-flexible, closed-cell thermal insulation of elastomeric foam based on synthetic rubber (NBR) of 25mm thickness laminated with 12 micron aluminium foil facing with reinforced glass scrim alongwith adhesives and other necessary accessories all as specified and directed for followng sizes:- Make for Sl item Nos 8 & 9: Pipe: Jindal / Zenith / Tata. Make for insulation: Armacell / K-Flex / Aeroflex.

125 mm dia

100 mm dia

80 mm dia

65 mm dia

40 mm dia

32 mm dia

25 mm dia

Supply, installation, testing & commissioning of butterfly valve wafer type PN 1.6 rated short pattern CI butterfly valve having Gr. FG-200 CI body conforming to IS 210: 2009, seat having EPDM ubber lining, CF 8 stainless steel disc, AISI-410 stainless steel stem, 2.4 MPa body test ressure & 1.6 MPa seat test pressure and standard flange end conforming to BS 10 Table D/E & ANSI B 16.1 CI-125 duly insulated with FM approved highly-flexible, closed-cell thermal insulation of elastomeric foam based on synthetic rubber (NBR) of appropriate thickness laminated with 12 micron aluminium foil facing with reinforced glass scrim alongwith adhesives and other necessary accessories complete all as specified for following sizes. Make for valve: Kirloskar / L&T / Audco / Upadhyay / Jainko. Make for insulation: Armacell / K-Flex / Aeroflex.

100 mm dia

80 mm dia

65 mm dia

32 mm dia

25 mm dia

Supply, installation, testing & commissioning Y-strainer of cast steel bolted cover with CCS body conforming to ASTM A-216 Gr. WCB, AISI 304 screen with 1.2 mm diameter perforation, 20 kg/cm2 body test pressure & 20 kg/cm2 maximum working pressure and standard flange end conforming to BS 10 Table F / Class-150 duly insulated with FM approved highly-flexible, closed-cell thermal insulation of elastomeric foam based on synthetic rubber (NBR) of appropriate thickness laminated with 12 micron aluminium foil facing with reinforced glass scrim alongwith adhesives and other necessary accessories complete all as specified of following sizes:- Make: Advance, Sant, Hindustan for strainer & Armacell, K-Flex, Aeroflex for insulation.

100 mm dia

80 mm dia

Supply, installation, testing & commissioning Non-Return Valve wafer type PN 1.6 rated swing check type multidoor reflux valve (NRV), designed & tested as per IS 5312 (Part-2): 1986, suitable to handle clear water having turbidity upto 5000 PPM, having CI body, door and diaphram, leaded tin bronze seat rings and flange drilling standard end connection, etc. duly insulated with FM approved highly-flexible, closed-cell thermal insulation of elastomeric foam based on synthetic rubber (NBR) of apppropriate thickness laminated with 12 micron aluminium foil facing with reinforced glass scrim along with adhesives and other necessary accessories of following sizes:- Make for valve: Leader / Kirloskar / L&T / Audco / Upadhyay / Sant / Jainko. Make for insulation: Armacell / K-Flex / Aeroflex.

100 mm dia

80 mm dia

Supply, installation, testing & commissioning 3 Way temperature control valve of electronic, self-balancing, pressure independent type dynamic balancing valve rated for minimum 25 bar working pressure with integrated 3-Way modualating control valves in a single body and actuator capable of accepting upto 10 V DC and upto 20 mA electric signal and provide similar transduced feedback output to control system duly insulated with FM approved highly-flexible, closed-cell thermal insulation of elastomeric foam based on synthetic rubber (NBR) of appropriate thickness laminated with 12 micron aluminium foil facing with reinforced glass scrim alongwith adhesives and other necessary accessories. Make: Honeywell, Danfoss, Advance for valve & Armacell, K-Flex, Aeroflex for insulation. Note: [i] Maximum close off pressure shall not be less than 6 bar for upto 50 mm valves. [ii] Maximum close off pressure shall not be less than 7 bar for 65 mm & above of following sizes:-

65 mm dia

32 mm dia

Supply, laying / fixing, testing & commissioning GI pipe of sze 25 mm dia medium grade for drain and instrumentation piping including necessary fittings viz. bends, tees, reducers, flanges, air purge valves, drain valves, structural support, necessary clamps, vibration isolators, etc. including painting and supporting / fixing the pipe on floor / wall / ceiling with clamps, hangers, angles, channels (using anchor fastners) with necessary accessories complete all as specified and directed. Make: Tata / Jindal / Zenith / Swastik / Prakash.

S&F, Ball valve of size 25 mm dia of CL 150 rated designed & manufactured as per IS: 9890 (1981) and tested as per BS 6755 Part-I, having floating type three piece design, CS body, SS-304 ball, PTFE seal / packing / gasket, CS fastners and lever and screwed / socket weld end connection, etc. with accessories complete all as specified and directed.

Supply, installation, testing & commissioning of automatic air-vent valve with 20 mm end connections, brass OT 58 body and cover, polyacetal lever, high density expanded olyethylene float, EPDM rubber plug, stainless steel spring, polyamide cap etc. suitable for maximum operating pressure of 16 bar and maximum operating temperature 115 °C espectively, installed on all high points in the water piping system to automatically remove the trapped air complete all as specified and directed.

S&F, temperature guage 6" dual scale (°F/°C), lower mount (radial), bimetal thernometer having 0.5 NPT process connection, Grade A accuracy class as per ASME B40.200, stem diameter 6.35 mm, laminated safety glass window, stainless steel 304 case, steam, process connection & joint, aluminium dial & pointer, IP67 protection, scale range 0-50°C complete with accessories, etc. as specified and directed by Engineer-in-Charge. Make: General, WIKA, TSI, H-Guru.

S&F, pressure guage 4" bourdon tube pressure gauge conforming to EN 837-1, having copper alloy process connection & pressure element, plastic black pointer & case, plastic crystal-clear window, snap-fitted in case, accuracy class 2.5, scale range 0-25 bar complete with accessories, etc. as specified and directed by Engineer-in-Charge. Make: General, WIKA, TSI, H-Guru.

Supplying, fabrication, installation & testing of GSS sheet metal ducting complete with spliter damper, duct damper, vanes etc fabricated out of galvanised sheet class VII 120gm/sqm zinc coating conforming to lS 277-1965 all as required and as specified and directed for following:-

24 Gauge

22 Gauge

20 Gauge

18 Gauge

S&F, supply / return / exhaust air diffusers / grills / louvers of powder coated aluminium with aluminium volume control dampers with anti smudge ring and removable core complete all as specified and directed for following:- Make: Systemair, Air Flow, Caryaire, Air Products, Sagar Air.

Supply air grilles of powder coated aluminium with volume control dampers.

Supply air grilles of powder coated aluminium without volume control dampers.

GI Volume control damper / fresh air damper.

Supply, installation, testing & commissioning fire damper made out of galvanised 16 gauge, at least of 90 minutes fire-rating, spring activated on melting of fusible link having melting point 67.13° C complete with smoke detector / thermister, fusible link etc. and tested as per ULL-555 and certified by CBRI. Make: Systemair, Air Flow, Caryaire, Air Products, Sagar Air The fire dampers shall meet the following criteria: [a] Bare fire dampers with 150 mm sleeve [b] Sealing any openings around the sleeve of the fire dampers with approved fire sealant as per the specification & recommandations of the manufacturer.

Fire and smoke damper

Fusible Link

S&F, thermal insulation of FM approved highly-flexible, closed-cell thermal insulation of elastomeric foam based on synthetic rubber (NBR), laminated with 12 micron aluminium foil facing with reinforced glass scrim tested for service temperature range 0-105˚C as per EN 14706, EN 14707 & EN 14304, thermal conductivity λ ≤ 0.037 W/mK at mean temperature θm = 20˚C as per EN 12667 & EN ISO 8497, water vapour diffusion resistance factor μ ≥ 12000 as per EN 12086 & EN 13469, water absorption by volume 0.2% as per ASTM C 1763 & ASTM C 209, Class 0 fire performance as per BS 476 Part 6: 1989, Class 1 surface spread of flame as per BS 476 7: 1997, flammability HB, V-0 as per UL-94, having good resistance to mechanical impact, excellent resistance to ozone, oil and chemicals, zero ozone depletion potential alongwith adhesives and other necessary accessories for following:- Make: Armacell, Aerocell, K-Flex, A-Flex.

19 mm thick thermal insulation (For Supply air duct inside building)

13 mm thick thermal insulation (For Return air duct inside building)

Supplying & fixing of acoustic lining of duct with 25 mm thick resin bounded fiber glass having a density of 33 kg/m3 and covered with 0.5mm thick perforated aluminium sheet upto five metres of duct from the canvas connection of AHU complete all as specified and directed.

Supply, install test & commissioning LT panel board outdoor type, Cubicle type, as per IEC-61439-1 & 2 suitable for 415 V, 50Hz, rated fault current : 50KA for 0.5 sec with internal arc containment dust, vermin proof, weather proof, IP-54 Grade of protection of CPRI approved, providing aluminium bus bar of capacity 750 Amps rating including internal wiring using suitable size not less than 1.5 sqmm FRLS copper conductor cable alongwith ferouls. The panel shall be painted with anticorrosive coating and finally powder coated of flint gray shade (RAL-7032). The panel should be provided with multifunction meters, voltmeter, 3 phase indicators lamps and the panel should be mounted on 'C' channel base of required size duly coated with anti corrosive paint. The circuit distribution lines to be marked over the panel using poly venyl reflective stickering (where necessary) complete with following:-

Supply, install, test & commissiong of LT panel Board indoor type, cubicle type as per IEC-61439-1&2 for 415 V, 50Hz, rated fault current : 50KA for 0.5 sec with internal arc containment dust, vermin proof, weather proof, IP-52 Grade of protection, providing aluminium bus bar of capacity 160 Amps rating including internal wiring using suitable size not less than 1.5 sqmm FRLS copper conductor cable along with ferouls. The panel shall be painted with anticorrosive coating and finally powder coated of flint gray shade (RAL -7032). The panel should be provided with multifunction meters, voltmeter, 3 phase indicators lamps and the panel should be mounted on 'C' channel base of required size duly coated with anti corrosive paint. The circuit distribution lines to be marked over the panel using poly venyl reflective stickering (Where necessary) complete with following:-

Supply, install, test & commission of LT panel indoor type, cubicle type, as per IEC-61439-1 & 2 for 415 V, 50Hz, rated fault current : 50KA for 0.5 sec with internal arc containment dust, vermin proof, weather proof, IP-52 Grade of protection, providing aluminium bus bar of capacity 125 Amps rating including internal wiring using suitable size not less than 1.5 sqmm FRLS copper conductor cable along with ferouls. The panel shall be painted with anticorrosive coating and finally powder coated of flint gray shade (RAL-7032). The panel should be provided with multifunction meters, voltmeter, 3 phase indicators lamps and the panel should be mounted on 'C' channel base of required size duly coated with anti corrosive paint. The circuit distribution lines to be marked over the panel using poly venyl reflective stickering (Where necessary) complete with following:-

Supply, laying, testing & commissioning LT cable XLPE insulated 1100 V grade aluminium conductor cables conforming to IS: 7098 (Part 1) - 1988 having stranded aluminium compact shaped conductor as per Cl. 2, IS: 8130 - 1984, PVC inner sheath, single armouring of galvanized steel strip / wire and PVC type ST - 2 outer sheath conforming to IS: 5831 - 1984, including termination complete as specified and directed of following sizes: -

3.5 core x 95 Sqmm aluminium Arm Cable for Chiller

3.5 core x 25 Sqmm aluminium Arm Cable for AHU

4.0 core x 4 Sqmm aluminium Arm Cable for Pump

3.0 core x 6 Sqmm aluminium Arm Cable for Cooling Tower

Supply, laying, testing & commissioning LT cable PVC insulated 1100 V grade copper conductor cables having stranded copper compact shaped conductor flexible cable including termination complete as specified and directed of following sizes: -

3.0 core x 1.5 Sqmm Cu cable for interlocking

5.0 core x 1.5 Sqmm Cu cable for Humidistat & Thermostat

Supply & installing perforated painted with powder coating MS cable tray of size 150 mm width x 50 mm depth x 1.6mm thickness with perforation not more than 17.5%, in convenient sections, joined with connectors, suspended from the ceiling with MS suspenders including bolts and nuts, painting suspenders etc as required complete all as specified and directed.

M&L for earthing complete with galvanised steel earth plate electrode of size 600mm x 600mm x 6mm buried directly in ground (earth pit not less than 2.25 mtr deep below ground level) with top edge of the plate not less than 1.5m below ground level connected to and including GI strip 32 x 6 mm protected with GI light grade pipe 40mm dia for earth electrode upto test point or upto 7.5 mtr whichever is less by means of GI bolts, nuts, check nuts and washers all shown in electrical plate No 3 (of SSR Part-I) connected to equipment including necessary excavation and earth work in any type of soil, PCC pit, RCC cover, 50mm thick with 8mm dia TMT bar @ 100cm c/c both way, 20mm bore medium grade watering pipe, water funnel, 40mm bore GI light grade protection pipe, common salt, charcoal dust, returning filling of soil, removal of soil to a distance of not exceeding of 50 mtr etc, including testing on completion complete all as specified and directed.

M&L for earth contuinity conductor or main earthing lead fixed to wall on batten or recess or chases or buried in ground or drawn in conduit / pipe or fixed to poles or any other indicated situation for loop earthing etc. as required 32 mm x 6 mm GI strip complete all as specified and directed.

M&L for earth contuinity conductor or main earthing lead fixed to wall on batten or recess or chases or buried in ground or drawn in conduit / pipe or fixed to poles or any other indicated situation for loop earthing etc. as required GI wire of 4.0 mm diameter complete all as specified and directed.

S&F, industrial Dehumidifier with stainless steel shell of minimum capacity 110LPD. Model No. : FFB 4500 Electrical Supply : 415V / 3 Ph / 50 Hz React Heater - 42 KW Process motor power - 2.2 KW React motor power - 1.1 KW

Supply, install, testing & commissioning of horizontal type Ultrasonic Humidifier with Humidistate, the power connection of this humidifier 240 +/- 10%V, 50 Hz, 1-phase in operation and inlet water connection to be provided near this system by other agency as per given below details. Tank made from 1.5mm S.S Sheet (304), welded construction, Top Openable with S.S Bolts & mist output nozzle duly epoxy painted. Level Switch & filter assembly Motorized Valves with timer for auto flashing S.M.P.S, Contactor with MCB, ON / OFF Switch with light, Control Module & Mist Fan complete all as specified and directed.

M&L for dismantling of existing old unserviceable water cooled AC plant of capacity 30TR - 03 Nos complete with connected items at DMRL and shifting to AGE E/M Kanchanbagh store yard complete all as specified and directed.

Supply, install, testing & commissioning of silent type Diesel Engine driven Generating set of capacity 1010 KVA / 808 KW complete with fully wired AC alternator to give an output of 1010 KVA continuously rating at a 0.8 power factor lagging, 3 phase, 4 wire, 415 volts, 50Hz, 1500 RPM directly coupled with Diesel Engine water cooled type mounted on common base frame complete with Acoustic Enclosure (Canopy) with latest CPCB norms including control panel, AMF panel and control cable, batteries, fuel line & accessories, fuel tank, exhaust pipe as per CPCB guide lines, PCC foundation, anti vibration pads etc and other standard accessories all as conforming to IS 4722/1460, BS 5514/2613/5000, ISO 8526/3046 and as amended upto date and all as specified and directed and comprising of the following: -

(a) Alternator: Standard design alternator capacity of 1010 KVA / 808 KW net output at site Hyderabad after considering derating factor, 3 Phase, 4 wire, 415 Volts, 50 HZ, 1500 RPM, Power factor 0.8 (lagging), Current 1406 Amps, Automatic Voltage Regulator, self excited, self regulated brushless alternator screen protected drip proof IP 23 enclosure, insulating class 'H', self ventilated solid state and voltage regulation at no load to full load as per OEM. The alternator shall be directly coupled with diesel engine through flexible coupling and suitable for tropical climate and shall conform to BS-2613/5000/IS-4722 and as amended upto date. (b) Diesel Engine: Water cooled Diesel Engine suitable for 1010 KVA, 12-Cylinder, 4-stroke rated at 1500 RPM Minimum, 1180 BHP, TurboCharged, directly coupled with alternator through flexible coupling, direct injection, cold starting conforming to ISO 3046/BS-5514 with an overload capacity of 10% for one hour in 12 hours continuous operation and shall be provided with electrical stating arrangements including standard accessories / components and comprising of following: -

(i) Radiator cooled with charged air cooler. (ii) Mechanical FIP. (iii) Corrosion in-hibitor coolant. (iv) Paper element filters for fuel, lube oil, Bypass, plate type lube oil cooler. (v) Flywheel housing and flywheel. (vi) Turbo Charger, pulse tuned exhaused manifold, stainless steel (vii) Flexible coupling. (viii) Dry type replaceable paper element air cleaners.

(ix) Residential silencers. (x) Stainless steel exhaust flexible bellows. (xi) Motor driven priming pump. (xii) Starter Motor - Electric battery charging alternator. (xiii) Battery charging indicator. (xiv) Electronic governor. (xv) First fill lube oil, coolant and diesel during commissioning and 12 hours testing. (xvi) Engine control panel with all accessories and component displaying the parameters such as battery, voltage, charging rate, water temperature, lubricating oil pressure, engine speed, engine hours run, balance of fuel indicator. (xvii) Safety control trip and indication for high water temperature, low lube oil pressure, low and high speed trip. (xviii) Common base frame for engine and alternator made out of structural steel channel / beams duly painted. (xix) Battery: Two Nos of 12 volts, 180Ah capacity including copper leads of suitable size and adequate length.

Note: Exhaust pipe made out of heavy duty mild steel pipe 'C' class of length 3.5 metres above the building height (height of the building + 3.5 metre) or as per recommendations of OEM to meet CPCB norms inclusive of all accessories and hardware, neccessary support steel structure stack including mineral wool insulation 2 inch thick suitabe for 400 degree celcius temperature cladded with aluminium sheet for the entire lenght of exhaust pipe. (c) Acoustic Enclosure: Enclosure is free standing floor mounted factory built and modular in construction to facilitate easy assembly at work site and will be drop over housing type. It will consist of acoustically treated panel housed in sheet metal will provide easy access for maintenance, repairs and operation. The enclosure is custom to suit conditions with the following features: -

(i) Custom built product for various equipments, with ensure the optimum performance without duration. (ii) 16SWG (1.6mm) thick CRCA sheet to be used for enclosure panel to ensure longer life against weathing action. High quality acoustic insulation materials to be used as per IS 8183 for maximum sound absoption. Acoustic layers are supported by perforated sheets.

(iii) Sheet metal component of the enclosure should undergo various stages of surface treatment prior to painting which leads to be better life of the enclosure against weathering action. (iv) Special paint treatment with pure polyster powder / epoxy to be provided for better weather resistance. (v) Well designed ventilation system to be provided to put out the heat from the chamber efficiently. (vi) For effective acoustic / weather sealing a special type weather sealing gaskets, new frame rubber gaskets to be used. (vii) Working space is to be provided around the equipment for easy maintenance / repairs. (viii) Necessary cut out provision for entry and exist of fuel lines cable to be incorported in the enclosure as per the requirement. (ix) See through transparent window (glass or acrylic) in front of engine panel to be provided for monitoring the operation.

(x) Ducting if required, bellows, mechanical hardware like locks, hinge, fasters etc to be provided. (xi) Deliverables 75DB @ 1 meter at 75% load under free field conditions. The temp inside the enclosure will be with in limit and as per manufacturers recommendations above ambient temp. (xii) The enclsoure should be provided with bulk head light fitting for inside illumination. (xiii) The exhaust pipe along with proper aluminium cladding shall be laid to a height of above the roof level. The rates for the same are to be included in the quoted rates. (xiv) The batteries should be placed inside the enclosure inside the DG Set on a suitable insulated platform. (xv) The DG set should be provided with external emergency stop push button.

(xvi) Provn of 2 Nos 11 Watts LED lamp fitting of approved Make including wiring inside canopy with single switch controlled. (xvii) Fuel gauge to be provided with the neck of fuel tank. (xviii) Tools as per manufacturers with the box. (xix) Invents of suitable company be manufacture. (xx) The acoustic enclosure parts shall be of powder coated after pre treatment process.

(d) AMF Panel: Auto Mains Failure (AMF) panel board suitable for 1010 KVA DG Set, outdoor type CPRI approved factory fabricated made out 3.15mm thick CRCA sheet, free standing, floor mounted cubical type dust and vermin proof, ventilated, weather proof duly powder coated with siemens grey paint, IP 54 class protection, totally enclosed conforming to IS 8623 and as amended upto date, double door with locking arrangement provided with removable hinged front and rear doors for easy accessability, internally prewired, copper busbars of suitable rating including electrical and electronic components / accessories and comprising of following: - (i) Air Circuit Breaker 2000 Amps of rupturing capacity 65 KA, 4 Pole, 415Volts, 50 Hz, microprocessor based manually drawout type of qty - 02 Nos for main supply and DG supply with HRC back up fuses. (ii) 3 Pole Power contactor of suitable rating - 02 Nos.

(f) Civil Work: All civil works including RCC / PCC platform related to foundations for commissioning of DG Set shall be as per recommendation of manufacturer. Note: (a) The contractor shall arrange for artificial load including Diesel, Coolant, Lube oil etc for 12 hrs testing at site or deemed to be included in rate quoted by the contractor.

(b) The contractor shall submit detailed specifiation, Model No, Make, technical litrature and foundation drawing of DG Set for approval of accepting officer. (c) The contractor shall submit AMF Panel drawing with dimensions and arrangement of switch gears, metering devices and make and model of switch gears / contactor for approval of Accepting Officer. (d) Bus duct connection from DG set to AMF panel and further to LT panel shall be arranged by contractor.

Supplying, installation, testing & commissioning of LT outdoor bus duct sandwich type of capacity 2000 Amps, 50 KA for 1 sec suitable for use on 3 phase, 4 wire, 415 volts, 50Hz AC supply with metal clad enclosure having IP-65 as per IEC 529 fixing with tap off boxes and all accessories, made of 1.6mm thick steel sheet duly powder coated in convenient sections complete with 4 Nos aluminium bus bars having current density of 130 A/sq cm at nominal current rating, necessary joints, elbow joints & expansion joints and bends, fire barrier at each floor, provision of tapping at every metre, adopter box and copper flexible for joints, continuous earthing with 2 Nos aluminium strip of suitable size (one on each side) including, G.I. clamping, brackets, suspenders, angle iron bracket, steel fasteners, connecting to earthing system etc. complete all as specified and directed.

Supply, testing & commissioning of LT cable XLPE insulated, screened, PVC bedded, galvanized steel strip or wire armoured, electric power cables (heavy duty) 1100 Volts grade with stranded aluminium conductor of size 3.5 core x 150 Sqmm complete all as specified and directed.

Laying of LT cable XLPE insulated, screened, PVC bedded, galvanized steel strip or wire armoured, electric power cables (heavy duty) 1100 Volts grade with stranded aluminium conductor of size 3.5 core x 150 Sqmm, laid on walls through pipes duly clamping arrangements in all respect as required at site complete all as specified and directed.

M&L for earthing complete with galvanised steel earth plate electrode of size 600mmx 600mm x 6mm, buried directly in ground (earth pit not less than 2.25 mtr deep below ground level) with top edge of the plate not less than 1.5m below ground level connected to and including GI strip 32 x 6 mm protected with GI light grade pipe 40mm dia for earth electrode upto test point or upto 7.5 mtr whichever is less by means of GI bolts, nuts, check nuts and washers all shown in electrical plate No 3 (of SSR Part-I) connected to equipment including necessary excavation and earth work in any type of soil, PCC pit, RCC cover, 50mm thick with 8mm dia TMT bar @ 100cm c/c both way, 20mm bore medium grade watering pipe, water funnel, 40mm bore GI light grade protection pipe, common salt, charcoal dust, returning filling of soil, removal of soil to a distance of not exceeding of 50 mtr etc, including testing on completion complete all as specified and directed.

Dismantling existing old DG sets of 400 KVA x 2 Nos and connected items / accessories at DMRL site and including shifting and transportation to AGE E/M Kanchanbagh store yard without damaging to the DG set, complete all as specified and directed.

Taking down existing false ceiling carefully and refixing the same after installation of AC duct including making good the disturbed portion complete all as specified and directed.

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