National Council Of Science Museums Tender
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National Council Of Science Museums - NCSM Tender
Electrical Goods and Equipments
Electrical and Electronics
Eprocure
Opening Date8 Feb 2019
Closing Date13 Feb 2019
Tender Amount₹ 70,00,000
Costs
EMD
₹ 1,75,000Document Cost
Refer DocumentsTender Fee
Refer Documents
Summary
Sitc Of Air Conditioning System
Description
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Contact
Tender Id
2019_NCSM_434285_3Bid Award Id
ViewTender No
NSCM/18012/146/2018Tender Authority
National Council Of Science Museums ViewPurchaser Address
-Website
http://https://ncsm.gov.in/
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Documents
BOQ Items
Supply, installation, testing & commissioning of split coupled Primary Chilled water duty, vertical in line type 1450 rpm pumpset (having Bronze Impeller) complete with TEFC, IP-55, Class F insulated Sq cage induction motor, complete with common base frame, VI Pads, coupling and guard for the following duties: Flow 108 USGPM at 15 mtr. WC (1Working + 1Reserve) 4P/TEFC/IP-54 Motor for the above pump having min. IE 2 (1Working+1Standby) Sandwich type 1" thick ribbed rubber pads for vibration isolation (to be placed between the sub-base and pump inertia base) Note: Material of Construction will be same as to the Secondary Pumps. For details of pump refer tech. specn. part T5.
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SECONDARY PUMPS
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Supply, erection, testing & commissioning of split coupled vertical inline chilled water secondary pump sets with VFD suitable for 1450 RPM complete with drive motor, mechanical shaft seals and all other standard accessories. Material of construction: Casing - cast iron (BS 1452, Grade 220) - PM 16 , Impeller - bronze (BS 1400 LG 2C) - Statically & dynamically balanced , Casing gasket - confined non-asbestos fibre
Pump shaft - SS (BS 970416), Flush line - Braided stainless steel , Bearings - sealed for life or pre-packed type requiring no maintenance , Seal - mechanical , Motor shall be suitable for 415V ±10%, 50 Hz ±5%, 3 ph AC power supply
Type - TEFC squirell cage, effeciency class - min.IE2, insultaiton - Class F
Capacity of drvie motor shall be at least 15% in excess of BKW of pump
Coupling - rigid spacer type high tensile alluminium alloy
Pump shutt off head shall be at least 10% more than design head, Pumps will be provided with a lower sealed chamber, thottle bushing, sealed flush line fittings, if required. Supply in the flush line to the mechanical seal a 50 micron cartridge filter and a sight flow indicator, to suit the working pressure encounter for the pump with differential pressure exceeding 200 kpa supply in the flush line to the mechanical seal will be a cyclone type separator with sight flow indicator. The pump capacity and pressure are indicated below: Rated Flow 108 USGPM at 25 MWC head.(1W + 1S) with one controller
Each variable speed pumping system shall be complete with Pump with accessories as described above. Variable frequency drive for the above pumps , Differential pressure sensor with transmitter (this item is optional, manufactureres can quote sensorless system also)
Dedicated microprocessor based pump controller with pumpming software in IP 55 enclosure. Controller shall have the following minimum features:
LCD key pad, Operating interface on screen, filled level password protection, Fault & alarm history, Communication with the drives can be done through BMS or alalogu/digital IO, Internal circuit breaker protection, Automatic or manual pump alteration, End of curve pump runout protection , Standard alarm for drive motor overload or pump failure, Logic outputs for VFD with no bypass control , Provision for digital inputs for pump differential pressure switches, Output for remot alarm signal, Fault memory & alarm history
System shall be compatible with BMS/integrated pump controllers/SCADA compatible. Refer the NIT document for detailed technical specs and list of approved makes. For details of pump refer tech. specn. part T5 and for VFD part T14.
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CHILLED WATER PIPING
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Supply, erection, testing & commissioning of 80 NB size of MS ERW Chilled Water (Supply & Return) piping with insulation as per specification complete with fittings, supports and all accessories. Pipes upto 80 NB shall be Heavy Grade as per IS: 1239 Part I Note: For pipes refer tech. specn. part T8 and for insulation part T10.
160
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Same as above but for pipe size of 40 NB
25
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Same as above but for pipe size of 32 NB
50
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Same as above but for pipe size of 25 NB
100
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Same as above but for pipe size of 20 NB
10
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DRAIN PIPING
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Supply, erection, testing & commissioning of 32 NB size of MS Galvanized ERW Drain Piping complete with fittings, supports and all accessories. Pipes upto 150 NB shall be Medium Grade as per IS: 1239 Part I Note: For pipes refer tech. specn. part T8 and for insulation part T10.
10
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Same as above but for pipe size of 25 NB
100
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Same as above but for pipe size of 20 NB
10
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AIR HANDLING UNIT
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Supply, installation, testing & commissioning of Double skin thero acoustic panel construction as per technical specification for Floor mounted (Ground Floor) Air handling Units. For detailed construction refer technical specification of air handling units. Fine & pre filter section shall be provided as per specification. Chilled water coil (minimum 6RD, 12FPI @ 500 fpm face velocity) section and fan section for capacities as scheduled below shall also be incorporated. All AHU shall have sandwiched insulated SS drain pan. EC centrifugal fan shall be of rugged bolted construction made of sheet steel, statically & dynamically balanced. Fan shall be with single inlet centrifugal impeller having high efficiency backward curved blade and external rotor EC motor, energy optimized for operation without spiral housing for high efficiency and favourable acoustic behaviour. The impeller shall have adecuate no. of backward curved profile blades for achieving low noise. High efficiency backward curved impeller with rotating diffuser made of high performance composit material, with external rotor motor shall be statically & dynamically balanced as per DINISO 1940 Part-I. The fan shall be as per T7 of general specification. Integrated electronics along with fan shall also be as per T7 of tender specification. Fan motor shall be with IE 4 efficiency with operating voltage input range 380-480 V, 50/60 Hz. Motor shall be specially designed for quiet operation and motor speed shall not exceed 1440 rpm. 13000 CFM, 65 mm static pressure 40.0 TR Capacity
10 KW motor with all standard accessories. Provide one set of 1150 CFM capacity energy recovery wheels with all standard accessories including drive motors to be suspended from ceiling shall be considered. Note: Refer the NIT document for detailed technical specification and list of approved makes. For AHU refer tech. specn. part T7.
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HI WALL UNITS
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Supply, erection, testing & commissioning of chilled water low noise hi-wall Units complete with chilled water cooling coils, 3 speed fan with on/off 3 speed (Hi-Med-low) Thermostat , extended drain pan (sandwiched SS construction only) and pre filters. Coil face velocity restricted to 450 fpm suitable for 230 V, 50Hz Single Phase power connection with MCB of suitable rating. 800CFM, 2TR capacity
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EXPANSION TANK
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Supply, erection, testing & commissioning of 500 ltr. Capacity fully automated closed pressurised expansion tank with in build degaser and air separator. The unit shall be provided with two nos. of pumps (1W+1S). The unit shall be provided with automatic make up water filling system complete with all valves, accessories, controls mounted on common base frame for closed lub chilled water system. Tank capcity 500 ltr. and static head 20 mtr. with air separator and other standard accessories. For detals refer tech. specn. part T5.
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MOUNTING & ACCESSORIES Supply, erection, testing & commissioning of Valves and Line accessories for plant area, AHUs and piping with insulation by Class-O nitrile/polyethylene closed cell insulation of density not less than 30 kg/cum for polyethylene and 40 kg/cum for nitrile rubber material. Valves shall be of PN 10 min. For details refer tech. specn. part T8.
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Butterfly valves (wafer type) , 80 NB
17
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Check Valves, 80 NB
4
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Ball Valves, 25 NB
8
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Ball Valves, 15 NB
1
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Y Strainer, 80 NB
5
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Flow Switch for Chiller
2
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Ball Valve with Strainer, 25 NB
4
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Ball Valve with Strainer, 15 NB
1
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Control cum balancing/energy valve, 80 NB
1
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Control cum balancing/energy valve, 25 NB
4
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Auto Air Vent, 10 mm diameter
6
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Industrial Thermometer
6
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150 mm dia burdon type pressure gauge with gauge control valve
14
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ACOUSTIC INSULATION
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Supply, erection, testing & commissioning of acoustic insulation for AHU wall & roof. Material shall be of nitrile rubber based with min. density of 140 KG/cum and 13 mm thk. Note: For details refer tech. Specn. Part T10.
130
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DUCTING WORK
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Supply, erection, testing & commissioning of SMART preinsulated PIR (Polyisocyanurate Rigid) panels sandwiched between aluminium foil on both the sides, closed cell not less than 95% rigid cellular foam insulation of thickness as specified below and material shall be Class O as per BS 476 Part 6 & Part 7, with density of 48 kg/cum and should have thermal conductivity 0.019 W/mK, water absorption shall be not more than 0.03% and conforming to EN 13403 standards for ducting. The duct work should be capable of handling pressures upto 1500 Pascals. The joint between the ducts shall be done by means of PVC slide in type joint between the ducts to prevent any air leakage. Duct supports to be provided at regular intervals. 20MM Thick, (Internal Ducting) NOTE: For details refer tech. specn. part T8A.
350
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FIRE DAMPER
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Supply, erection, testing & commissioning of 2 hrs. rated motorized fire damper. Damper & actuator shall withstand a temperature of 300 deg. C for 2 hrs. Material shall conform to UL 555 and CBRI approved. NOTE: For details refer tech. Specn. Part T11.
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VOLUME CONTROL DAMPER
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Supply, erection, testing & commissioning of jet nozzle diffuser (eye ball) of 450MM diameter with volume control damper. The unit shall be constructed from GI powder coated material. Jet nozzle shall be selected consideraing 32 NC noice coefficient.
12
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GRILLS & LOUVRE For details refer tech. Specn. Part T8A
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Supply, erection, testing & commissioning of rectangular grills of extruded aluminium regid construction with volume control damper. Grill spacing shall be app. 3/4 inch.
5.5
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Supply, erection, testing & commissioning of Fresh air louvre of extruded aluminium construction (min 150 mm deep), complete with 20 micron prefilters & VCD. Powder coating finish colour shall be approved by the Client.
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ELECTRICAL PANEL
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Supply, erection, testing & commissioning of AC plant room MCC complete with two nos. 100% incomer and outgoing feeder for two nos.of air cooled chillers, starter for two nos. (1W + 1S) of primary chilled water pump sets,two nos. (1W+1S) secondary chilled water pumps for auditorium, two nos. (1W+1S) pumps for closed type expansiion tank for pressurization system and connection for chiller motorized control valve, 1 ns. of floor mounted air handling units with the provision of power supply to motorized valve & power supply to 4 nos. hi-wall units, 1 no. of energy recovery ventilator. MCC shall be floor mounted fixed type with copper bus bar. Ammeter shall be considered for all the outgoing feeders. Voltmeter shall also be considered. Incoming section of MCC shall be provided with ammeter & volt meter and minimum rating of incomer MCB shall be 200A. Outgoing feeders also shall be provided with ammeter & volt meter. MCC shall be provided with one no. spare feeder for chiller rating as well as spare feeder for higher capacity equipment by 10%. Control cabaling shall be connected to all the local start/stop push button of various equipments. MCC shall be manufacture from 16G CRCA power coated sheet steel. Outgoing Feeders: 2 nos. 160A MCCB along with 2 nos. MCCB
2 nos. DOL starter for 2 nos primary pumps Feeder for Power supply to 2 nos. secondary pump control panel
Power supply to floor mounted air handling units 1 no. with star delta/DOL starter with MCCB sutiable for 7.5/10.0KW motor with the provision for power supply to 2-way valves
Power supply to pressization pump 2 nos. and power supply to motorized fire damper with provision of NO, NC connection.
Power supply to 4 nos 2.0 TR hi-wall units to be located as per the drawing. NOTE: For details refer tech. specn. part T13.
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CABLES Supply, erection, testing & commissioning of 1100 V grade PVC stranded Copper conductor XLPE insulated with FRLS outer sheet & strip armoured conforming to IS-7098 NOTE: For details refer tech. specn. part T13.
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2 nos. 3.5C x 95 mm2 cable for Chillers
100
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4C x 2.5 mm2
35
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4C x 1.5 mm2
400
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4C x 1.5 mm2 Copper Control cable
100
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EARTHING FOR DISTRIBUTION SYSTEM
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Supply, erection, testing & commissioning of Earthing between Electrical panels in HVAC contractors scope and the respective HVAC equipment. Size 25 /3 GI earth strip
1
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Supply, erection, testing & commissioning of 150 x 50 G.I. Cable trays, 150MM WIDE
200
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EARTH STATION
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Excavation in earthwork 1000x1000mm upto 1m depth in all type of soil and supplying, storing, shifting and laying of 600mm x 600mm x 3 mm thick GI plate electrode, with 2 Nos 50mm x 6 mm GI strips from earth plate electrode to inspection chamber, 50 mm dia medium GI pipe, GI funnel with masonry chamber 600mm x 600 mm with concrete base CI manhole cover with frame painted with bitumastic paint and packing with mixture of charcoal and common salt around plate electrode including digging of pit up to permanent moisture level but not less than 3 meters and back filling as required.
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CIVIL /MISCELLANEOUS WORK
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Making cutouts in the existing brick work of 230mm/appropriate thick wall including plaster and refilling the balanced gap by grouting with cement sand mortar and elastomeric compound and making the cutout fire proof and water proof and testing the same at site with suitable water testing method. Rate should also be inclusive of civil works required for AC unit's ducting / drain piping such as chiseling of wall, wall openings, slab core cutting (if required), making required size cut outs in walls, false ceiling & recementing & making surface uniform, matching with the existing structure, including all necessary hardware & accessories, etc. complete as required & as per the instructions & directions given by the Client / Consultant.
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BUY BACK OFFER
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Buy back of existing Air cooled Chiller system including dismantling, storing and carting away from the site and cleaning the dismantled area etc complete in all respect. Total Capacity: 44TR (22TR X 02), Make: Voltas, CHILLER UNIT WITH Copper fins condensers 11TR capacity Scroll Compressors-04 Nos. Make Danfoss
AHU: 10,000 CFM, 7.5 KW motor, Static Pressure: 65 MMWG, Make: Zeco
MS piping with mountings (Thermometer, Pressure Gauge, Butterfly valves, Balancing Value, Anti-freeze sensor, Non return valve, 3Way mixing valve etc.) Makeup Tank, Electrical Panel of size 7' H x 3.5 ' L X 1' W , Make: Standert
Control & Supply Cable, Cable Trays, GI Ducting: 1 Lot & Miscellaneous Items Support frame structure. Note: The bidder shall visit the installation site prior to quote the bid in the item.
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