Military Engineer Services-MES has published Tender For Provision Of Ac Plant For Three Technical Storage Accn At Af Stn Chabua Under Ge (Af) Chabua. Submission Date for this Tender is 19-02-2024. HVAC Tenders in chabua Assam. Bidders can get complete Tender details and download the document.
| Sr No | CorrigendumDate | Corrignedum | CorrigendumType | NewSubmissionDate |
| 1 | 20-Sep-2023 | Corrigendum_1 | Date | 07-10-2023 |
| 2 | 30-Sep-2023 | Corrigendum_2 | Date | 21-10-2023 |
| 3 | 12-Oct-2023 | Corrigendum_3 | Date | 04-11-2023 |
| 4 | 27-Oct-2023 | Corrigendum_4 | Date | 11-11-2023 |
| 5 | 01-Nov-2023 | Corrigendum_5 | Date | 18-11-2023 |
| 6 | 11-Nov-2023 | Corrigendum_6 | Date | 25-11-2023 |
| 7 | 17-Nov-2023 | Corrigendum_7 | Date | 02-12-2023 |
| 8 | 24-Nov-2023 | Corrigendum_8 | Date | 09-12-2023 |
| 9 | 01-Dec-2023 | Corrigendum_9 | Date | 16-12-2023 |
| 10 | 08-Dec-2023 | Corrigendum_10 | Date | 26-12-2023 |
| 11 | 18-Dec-2023 | Corrigendum_11 | Date | 02-01-2024 |
| 12 | 22-Dec-2023 | Corrigendum_12 | Date | 15-01-2024 |
| 13 | 08-Jan-2024 | Corrigendum_13 | Date | 22-01-2024 |
| 14 | 12-Jan-2024 | Corrigendum_14 | Date | 05-02-2024 |
| 15 | 29-Jan-2024 | Corrigendum_15 | Date | 12-02-2024 |
| 16 | 01-Feb-2024 | Corrigendum_16 | BOQ | 12-02-2024 |
| 17 | 12-Feb-2024 | Bid Auto Extn Corrigendum | Bid Auto Extn Corrigendum | 19-02-2024 |
| Sl. No. | Item Description |
| 1 | Design, Supply, Installation, Testing and Commissioning of Central AC plantwith the following parameters and specifications , completeas mentioned in Srl No 1.01 to 1.54 here-in-after all as specified and as directed. |
| 2 | Design, Supply, Installation, Testing and Commissioning of water-cooled Scroll Chiller with multi compressors, comprising of Hermetic compressors, DX Evaporator, shell & tube condenser, suitable expansion device, suitable for operation on R-407 C refrigerant and complete in all respects as required for 50%x 2 Nos working + 50% x 1 No stand by ofactual Cooling capacity. Water Temperature IN - 54.0 deg F WaterTemperature OUT - 44.0 deg F Fouling Factor - 0.0005.FPS Condenser: WaterTemperature lN - 93deg F Water Temperature OUT- 100.5 deg F Fouling Factor - 0.001 FPS Water flow rate through Chiller - 240 USGPM Water flow rate through Condensor - 300 USGPM |
| 3 | Supply, Installation, Testing and Commissioning of end-suction centrifugal Chilled water pump set,pumpas above ( 2 working + 1 stand by)capable of delivering USGPM (as per design) todeliver water against 20 mtr WG head comprising of the following and complete as required. (a) 1 No - Pump with bronze impeller, SS Shaft, CED Coated CI body and mechanical seal (b) 1 No. suitable HP, TEFC squirrel cage induction motor (IE-2) with class "F" insulation, 2900/1450 RPM synchronous speed, operating at 415± 10 % Volts,3 phase, 50 Hz AC supply,Minimum Efficiency 75% (c) Duly insulated with 19mm thick closed cell nitrlle rubber insulation cladded with aluminium sheets of 24G thickness and properly damped to pump in two semi circular sections as required (d) Lot-Mounting framework with anti-vibration pads |
| 4 | Supply, Installation, Testing and Commissioning of end suction centrifugal Condenser water pump set, Pump as above ( 2 working + 1 standby) capable of delivering USGPM (as per design) to deliver water against 20 mtr WG head each comprising of the followlng and complete as required. (a) 1 No- Pump with bronze Impeller, SS Shaft, Cl body and mechanlcal seal (b)1 No suitable HP, THC squirrel cage induction motor (IE-2) with class "F" lnsulation, 2900/1450 RPM synchronous speed, operating on 415 ± 10% Volts,3 phase, 50 Hz A.C supply, Minimum Efflciency 75% (c) Lot-Mounting framework with anti-vibration pads |
| 5 | Supply, Installation, Testing and Commissioning of Monoblock-type Hot water pump as ( 1 working + 1 standby) for hot water re-circulation, pump set capable of delivering LPM (as per design) to deliver water against 20 mtr head each comprising of the following and complete as required (a) 1 No- Pump with bronze impeller, SS Shaft, Cl body and mechanical Seal (b) 1 No suitable HP, THC squirrel cage induction motor (IE-2) with class "F" insulation, 2900/1450 RPM synchronous speed, operating on 415 ± 10% Volts,3 phase50 Hz ACsupply, Minimum Efflciency 75% (c) Lot-Mounting framework with anti-vibration pads |
| 6 | Supply, Installation, Testing and Commissioning of electrlcally-operated Hot Water Generator (1 working + 1 standby) of following actual capacity made of 8 mm M.S. sheet and dish end made of 10mm M.S. having 16 gauge stainless steel lining with heaters arranged in banks and Controller and Thermostat so that required qty of hot water is generated at 50°c with nominal variation, including 100mm thick resin-bonded fiber glass insulation of 24 kg/ cum density finished with 1.25mm thick aluminium sheet cladding including necessary Electrical panel with automatic controls Including inlet and outlet connections for water complete with pressure-release valve, low level cut-0ut, Autovent sight glass, as per specifications complete as required. (Degree of protection: IP-52 with IS-2147) Heating capacity: As per design Water in temp. : 45 deg C Water out temp : 50 deg C Flow Rate: as per design |
| 7 | Supply. Installation, Testing and Commissioning of Ultrasonic Humidifier of capacity as per design, complete with stainless steel tank with float valve, water make-up, over flow and drain connections. The transducer shall be interlocked with float switch, supplied with humidifier and humidistat with necessary supports by MS structural steel and if required by hangers, clamp supports from walls, floors and ceiling with painting withtwo coats of paint over one coat of primer on MSsupport work. |
| 8 | Design, Supply, lnstallatlon, Testing and Commisionlng of Induced draft counter flow, vertical discharge type FRP Coollng tower of capacity as per design (2 Nos @1.70 lacs kCal/hr heat rejection capaclty) with ultra-violet treated durable & hlghly efflclent PVC fittings with Integral louvers and drift elimlnators, open pan suitable for water distrlbutlon complete with hot FRP water basin. The hot water shall be distributed to fill in each cell via open-type gravity basin or with spray nozzles or having self"-floatlng sprinlder Cooling tower shall be provided with statlcally and dynamically balanced one No anti-corrosion treated axlal flow type fan direct-driven or driven through speclal bevelled reduction gear box with TEFC induction flame-proof motor with IP-65 protection, IE-2 suction make up and quick fill arrangement, overflow and drain connections and suitably inspected hot-dipped galvanized ladder, access arrangement for cooling tower interior, anti-vibration mountings etccomplete as required. The unit shall be lnstalled at proper foundation as per requirements. Water Leaving Temperature : 93 deg F Water Entering Temperature : 100.5 deg F Water Flow Rate : 300 USGPM Ambient Wet Bulb Temperature : 86 deg F |
| 9 | Supply, Installation, Testing and Commissioning of factory-built Floor standing double-skIn type air handllng unit of capacity as per design at 04 different locations in Annexies as shown in drawing complete with thermal break profile made of 25 mm thick panels consisting of pre-plasticized GI sheet caslng of thickness 0.8mm outside and 0.8 mm thick GI sheet inside layer with CFC-FREE PU insulation of density 42(±5%) kg/m3 factory-Injected between them by injection moulding machine, complete with direct-driven plug fan of 65mm WG static pressure. The unit shall consist of 6 rows deep cooling coil & 2 rows deep heating coil as per requirements (not limited to listed below) with aluminium finned (12FPI) copper tubes (tube thickness not less than 0.41mm), filter sections with 50 mm thick washable synthetic type Pre-filters having efficiency 90% down to 10 micron, Fine-filters having efficiency 99% down to 5 micron, VFD opearated motor (Flame proof) and panel suitable for operation at 415 ±10% volts, 50 Hz. 3 phase, AC Supply, complete with drain connections with drain valve, insulated stainless steel drain pan, necessary vibration Isolation arrangement, flexible duct connector etc complete as per following capacities: (a)20 GSS Drain pan, drain connection. (b)Pre filters and Fine filter should be located after the fan in the direction of alr flow. (c)The AHU should have space for humidifier. (d)VFD panel with VFD (quantified separately), necessary control arrangement to switch off the fan In case of fire. Indicating lamp & all safety precautions in a flame-proof powder coated GI enclosure with necessary power and control cable as required. |
| 10 | Supply, Installation, Testing & Commissioning of HVAC dedicated VFDs suitable for each AHU, VCD"s fan motor capacities (The Integration of the VFD with fan motor is included In this Item) with IP-55 enclosures with Mains disconnect suitable to fit-out In electrlcal panel (flame-proof) having: (a) Built-in dual 5% impedance DC link reactor (harmonic filters) on the positive and negative rails of the DC bus of the VFD. (b) Built-in EMC Filters (electromagnetic-compatibility-filters) for VFDs for restriction of conducted emissions to comply with IEC 61800: 3 (unrestricted distribution):2004 Category C-1 for 50 meters of cable length between motor & VFD (c)Three-feedback PID (proportional-integrated-derivative) controller having capability to simultaneously accept 3 f"eedback signals from temperature sensor, pressure sensors or RH sensor for process optimization and accordingly regulate the speed of the fans. |
| 11 | Supply, Laying/fixing, Testing and Commlsslonlng of suitablenominal sizes of chilled / hot water piping Inside the building (with necessary clamps, vibration Isolators and fittings but excluding valves, strainers, gauges etc.) dulyinsulated with closed cell class "O" nltrlle-rubber elastomeric insulation of density 40- 60 kg/m3, thermal conductivity of 0.035 W/mK at 0 deg celsius mean temp and ?= 7000 (without any additional vapour barrier) and factory laminated 7 mil Glass Cloth (GC) covering to be applied on pipes using manufacturer"s recommended rubber-based adhesive In a blend of solvents complete as per specifications and as required complete In all respects. (a)The pipes of sizes 150mm & below shall be MS "C" class as per IS: 1239 and pipes of sizes above 150mm shall be welded black steel pipe heavy class as per IS: 3589 from minimum 6.35mm thick MS sheet for pipes upto 350 mm dia and from minimum 7mm thick MS sheet for pipes of 400 mm dla and above. |
| 12 | Supply,Fixing, Testing and Commissioning of followlng valves, strainers, gauges in the chilled water plumbing duly insulated to the same speciflcations asthe connected piping and adequately supported as required:- (a) BUTTERFLY VALVE80 mm dia (MANUAL) with CI body SS Disc, nitrite rubber seal & O- Ring PN16 pressure rating for chilled water circulation as required. (b)BALL VALVE 40/32/25 mm dia (diameter as per design)set with and without Y-strainer with bronze body, flanged end type for chilled water circulation as specified. (c)BALANCING VALVE of rated diameter as per design with BUILT-IN MEASURING FACILITY of CI body flanged construction with EPDM-coated disc with long pitch with protruded out pipe insulation & PN 16 pressure ratlng for chilled water circulation as required. (d)NON - RETURN VALVEof rated diameter as per design with dual plated CI body SS plates vulcanized NBR- seal flanged end & PN16 pressure rating for chilled water circulation including insulation as required (e)Y- STRAINERof rated diameter as per design with of ductile Cl Body flanged ends with stainless-steel strainer for chilled water circulation including insulatlon as required (f) Three-way Motorized Valves with modulating motor In cooling/heating coil of air handling units as required (g) FLOW SWITCHof rated diameter as per design with of brass/polymer construction, as per requirement. (h) Industrial-type pressure gauge glyserine filledof rated diameter as per design with gun-metal / brass constructionand isolating valve complete with all accessories as required. |
| 13 | Item No 1.11 Contd (j) Industrial-type mercury in glass industrial-type thermometer with gun-metal / brass construction isolating valve complete with all accessories as required (k)Digital thermometers with probe suitable·for binder test point application with brass construction, nitrite sealing bushes, max. operating pressure of 16 bar & max working temperature of 110 deg. celsius as required (l)Dial-type pressure gauge with probe suitablefor binder test point application with brass construction, nitrite sealing bushes, max operating pressure of 16 bar & max working temperature·of 110 deg celslus as required. (m)Auto Air- purge valve of brass construction of 15 mm dia (Air Vent will be fitted with an Isolating ball valve - gun-metal/brass construction) |
| 14 | Supply, Installation, Testing and Commissioning of flexible Connector for 80/40mm dia pipe having PN 16 working pressure with anti-vacuum rings complete with flanges, nuts, bolts, seal etc to be lnstalled at chiller suction and discharge. |
| 15 | Supplying, Fixing, Testing and Commssionlng of G.I Pipe of rated diameter as per design withmedium gauge as per IS 1239/1979 along with neccesary clamps, fittings such as bends, tees etc. adequately supported and duly Insulated with 13 mm thick closed-cell elastomeric nltrile rubber of class "O" Insulation applied by adhesive conforming to standard specifications complete with type 3, grade-I roofing fertstrlp (as per IS:1322 as amended up to date) at joints and repairing or damage to building etc. as required complete In all respects. |
| 16 | Supply, Installation, Testing of open-type expansion tank of MS Construction made of 6 mm thick mild steel sheet duly Insulated with XLPE insulation applied by adhesive conforming to standard specifications and finally cladding with0.63 mm thick aluminium sheetcomplete with type 3, grade -Iroofing feltstrlp (as per IS:1322 as amended up to date) at joints and repairing of damage to building etc., as required, complete In all respects with connection over flow and drain 40 mm dla.(Size 500 X 500 X 500 (HIGH)) |
| 17 | Supply & Installation of make up water tank of 500 ltr capacity HDPE construction as required complete In all respect with connection, over flow and drain. Make up connection with float valve, drain valve, incoming line valves and fittings as required. |
| 18 | Supply, Fixing, Testing and Commissioning of condenser water pipes of suitable sizes and materials along with necessary clamps, vibration-isolators and fittings such as bends, tees etc. but excluding strainer and gauges etc, adequately supported on rigid supports including painting media valves including minor holes, works & making good the damage done to be welded black steel pipeas IS:3589, walls etc as required. Note:The pipes of sizes 150mm & below (lengthof pipe shall be as per requirement) shall be MSheavy class as per IS: 1239 and pipes of sizes above 150mm shall be welded black steel pipe heavy class as per IS: 3589, from minimum 6.35 mm thick MSsheet for pipes upto 350 mm dia& from minimum 7mm thick MS sheet for pipes of 400 mm dla & above |
| 19 | Supply. Fixing, Testing ahd Commissioning of following valves, gauges and strainers for condenser water circulation as required:- (a) BUTTERFLY VALVE (MANUAL) of 125/100mm dia with cast steel body SS Disc, Buna-N integrally moulded seal & 0-Ring. The valve shall be suitable for PN 16 working pressure for condense water circulation as required. (b)BALANCING VALVE of 100 MM dia as required with BUILT-IN MEASURING FACILITY of gun-metal construction upto 50 mm dla & cast-steel/ ductile iron body upto 300 mm dia as required having flanged construction with SS disc having long pitch with protruded out pipe insulation & suitable for PN 16 working pressure for condenser water circulation as required. The ductile iron body shall be painted with one coat of in-organic ethyl self curing zinc silicate premier at 75 microns& single coat of super-high-build epoxy MIO coatlng, cured with poly amide hardener at 150 microns & finally two coats of high-build-gloss aliphatic acrylic Poly-urethane at 50 micron dry film thickness. (c)NON- RETURN VALVE of100 mm dia with dual plates of cast steel construction, SS plates, body lining-BUNA -N, flanged end construction, suitable for PN 16 working pressure for condenser water circulation as required. (d)Y- STRAINER of100mm dia of cast steel body, flanged ends with stailess steel strainer, suitable for PN 16 working pressure for condenser water circulation as required. (e)BALL VALVE of40mm dia as required of brass construion, flanged end type for drain connection & make up water connection as required. |
| 20 | Supply, Installation, Testing and Commissioning of Flexible Connector 100mm dia pipe having PN 16 working pressure with anti-vacuum rings complete with flanges, nuts, bolts, seal etc to be installed at condenser suction and discharge. |
| 21 | FLOW SWITCH of brass/polymer construction suitable for 100 mm dia pipe complete. |
| 22 | Industrial-type Pressure Gauge with gun-metal/bráss construction isolating valve complete with all accessories as required. |
| 23 | Industrial-type mercury in glass industrial-type Thermometer with gun-metal / brass construction isolating valve complete with all accessories as required. |
| 24 | Auto Air purge valve of brass construction of 15 mm dia (Air Vent will be ftted with an isolating ball valve gun metal/brass construction). |
| 25 | Supply, Installation, Testing and commissioning of On-line, non-chemical water treatment scale preventer system (suitable for 125 mm dia pipe) having ftow rate of 360 USGPM. |
| 26 | Supply & Installation of make-up water tank 5000 ltrs of HDPE Construction as required complete in all respects with connection, over flow and drain.Make up connection with fioat valve, drain valve, incoming line valves and fittings as required. |
| 27 | Supply, Installation, Balancing and Commissioning of factory-fabricated GSS sheet metal rectangular ducting with supports as per IS 655-2010 complete with neoprene rubber gaskets, elbows, splitter dampers, vanes, hangers supports etc as per approved drawings and as required of following sheet thickness complete as required. (a) 24 gauge (thickness 0.63 mm) As required (b) 22 gauge (thickness 0.8 mm) As required (c) 20 gauge (thickness 1.0 mm) As required |
| 28 | Supply, Fabrication, Installation, Balancing and Commissioning of site-fabricated GSS sheet metal rectangular ducting with supports as per IS 655-2010 complete with neoprene rubber gaskets, elbows, splitter dampers, vanes, hangers, supports etc as per approved drawings and as required of following gauges: (a) 24 gauge (thickness 0.63 mm) As required (b) 22 gauge (thickness 0.8 mm) As required (c) 20 gauge (thickness 1.0 mm) As required (d)18 gauge (thickness 1.2 mm) As required |
| 29 | Supply, Installation, Testing and Commissioning of GI volume control duct damper complete with neoprene rubber gaskets, nuts, bolts, screws linkages,fanges etc, as required. |
| 30 | Supply and fixing of powder-coated extruded aluminium diffusers complete with black anodized extruded aluminium VCD (wherever specified) nuts, bolts. screws etc as per approved drawings and as required. |
| 31 | Suppplyand fixing air diffusers of required sizes with volume control damper and as required. |
| 32 | Supply and fixing Return air difñusers of required sizes without volume control damper and as required. |
| 33 | Supply & fixing of powder-coated extruded aluminium continuous-type linear return air grills complete with nuts, bolts, screws etc as per approved drawings and as required. |
| 34 | Supply, Installation, Testing and Commissioning of powder-coated extruded aluminium louvers with synthetic removable-type filter, bird screen & damper for fresh air intake complete. |
| 35 | Supply, Installation, Testing and Commissioning of fire-cum-smoke motorized damper as required, the blades and frame shall be minimum 1.6 mm thick GI sheet and factory-fitted in a sleeve made out of 1.6 mm thick GS sheet of min 400 mm length, as & where required, of required sizes including control wiring. The damper shall be motorized and have spring-return mechanism so as to close the damper in the event of power failure automatically and open the same in case of power being restored. The spring return action shall have in-built mechanism and not externally mounted. For smoke extraction, necessary control arrangement shall be provided for passive smoke control system in the event of fire signal. The dampers shal be CBRI tested and certified for 90 minute fire rating against flame penetration as per UL standard 555-1995. The assembly shall be complete in all respects, as required. (a) Motorized fire cum smoke damper as required (b) Spring-return motorized assembly as required (c) Actuator with control panel as required |
| 36 | Supply & application of Acoustic Insulation inside the duct with Engineered nitrile-rubber open-cell foam of 15mm thickness with density140-180 kg/m3 passing Class-1 fire performance test as per BS-476 (part 7), Air Erosion test for 10,000 FPM air velocity as per ASTM-C-107105 and with built-in antimicrobial protection. The material should pass fungl-resistance rest as per DIN EN ISO-846 method-A and bacterial resistance test as per DIN EN ISO-846 method-C; to be applied using manufacturer"s recommended rubber-based Adhesive in a blend of solvents complete as per requirement. |
| 37 | Supply& Installation of Thermal Insulation 13mm on ducts not exposed to sunlight using closed-cell Class "0" nitrile rubber elastomeric insulation of density 40 -55 kg/m3, thermal conductivity of 0.037 W/mK at 20 deg C mean tempandH27000 (without any additional vapour barrier) and with factory-laminated aluminium foil of minimum 60 microns thickness having weight of 193GSM as per EN-ISO 2286-2, tensile strength shall be 90N/15mm as per EN-SO 527-3 with elongation > 10% as per ENHSO 527-3to be applied on ducts using manufacturer"s recommendation,rubber-based adhesive in a blend of solvents complete as per requirement. |
| 38 | Supply, Installation, Testing & Commssioning ofLT Panel board manufactured from CPRI approved manufcturer,fabricated out of 2mm thick CRCA sheet floor-mounted frontand back operated LT PANEL, as per IEC 61439, for 415V, 3-phase, 4-wire 50 Hz AC supply system, each cubical shall be fabricated in compartmentalized design with CRCA sheet steel of 2mm thickness for frame work and covers, 2mm thickness for gland plates i/c cleaning & surface treatment with 9-tank process before powder coating ofapproved shade, having specified below Ampcapacity extensible type TPN aluminium alloy bus bars with suitable rating,Neutral to high conductivity,MC/SMC bus bar supports, with short circuit withstand capacity of 35kA for 1 sec, bottom base channel of MS section not less than 100mm x 75mm x 5mm thick, fabrication shall be done in transportable sections, entire panel shall have a common copper earth bar of size 32mm x 5mm at the rear with 2 Nos earth stud, solid connections from main bus bar to switch gears with required sizes, with earth bus, Al bus bars, numbering & sign writing, interconnection & control wiring including the cost of connection through bus bar /copper conductor flexible connection with necessary interlocking as per requirement with PVC insulated FRLS copper conductor single core cable, cable alleys, cable gland plates in two halves, i/c providing following switch gears: (a) LL Digital electronic MFM cum kWh meter where provided shall be equipped with communication port & three-phase indicating lamps protected by 2 Amps SP MCBs. (b)415/110V suitable rating control transformer shall be provided for aux control supply, (c)Wiring with space heater, thermostat and control MCBS shall be provided for all vertical sections of main LT panel. |
| 39 | Item No 1.37 Contd (d)All incoming as well as outgoing feeders shall have industrial type locking lfacility. (e) Suitable danger board shall be provided. (f)All MCCBs shall be provided with front rotary handle and operating mechanism for door interlock with pad locking of MCCBs handles in "OFF" (g) Al hinged door shall be earthed through 2.5 sqmm tinned braided copper. (h) Panels shall be powder-coated with grey paint shade No. RAL-7032 of IS-5. (j)Minimum degree of protection for following types of distribution panel enclosure shall be as per IS:60439. (k) All motor feeders MCCBs shall be of motor duty. (l) Supporting/Base rigid steel frame work. (m)TPN MCCBs shall mean 3 pole MCCBs with adequate sizes of neutral link. (n) Final rating & various parameters, in addition to those specified below, shall be selected on the basis of ambient conditions at site, client-specific requirements, requirement for the NOC from various statutory authorities, as per detailed design stage calculations. (o) Each Panel incomings/outgoings shall be provided with suitable Contacts/terminals to receive the aluminium conductor cables given in the latter section. (p) Each Panel shall be minimum IP-54 for indoor environment, except for outdoor conditions, which are mentioned separately. |
| 40 | Item No 1.37& 1.38 Contd INCOMER (a)1 No300A 4P MCCB (35 kA) Icu=lcs, micro-processor based having earth fault protection with 600A 4P ASTS(T) with bridging bars and as per ISEC-60947 complete as required. METERING & INDICATION (a)1 set of R,Y,B phase, ON indicating lamps- 01 set (b)1 No (0-500v) Voltmeter with built-in VSS with 3 Nos 2A SP MCB (c)1 No (0-500A) Ammeter with ASS with 3 Nos 500/5A CTS BUS-BAR (a)1 set of 400A TPN aluminium Bus-Bar with colour-coded PVC sleeves. OUTGOINGS (a)1 set of R,Y,B phase, ON indicating lamps (b)1 No (0-500v) Voltmeter with built-in VSS with 3 Nos 2A SP MCB (c)1 No (0-500A) Ammeter with ASS with 3 Nos 500/5A CTS (d)4 Nos 250A TP MCCB 25 kA (3 Chiller, 1 spare)icroprocessor-based having earth fault relay. (e)2 Nos 125 A TP MCCB 25 kA (2 Hot water generator) (f) 2 Nos 32A TP MCB 25 kA (2 Cooling tower) (g)3 Nos 32ATP MCB 25 kA (3 Condensor water pump) (h)3 Nos16ATP MCB 25 kA (3 Chilled water pump) (j) 2 Nos 16ATP MCB 25 kA (2 Hot water pump) (k)5 Nos25ATPN/SPN MCB C curve 10 kA |
| 41 | Item No 1.37, 1.38& 1.39Contd (l)2 Nos Automatic DOL/Star-delta starter for cooling motors of rated capacity with over load relay, motor protection relay, SET push buttons, auto manual indications, selector switch, CT selector switch etc operated ammeter with complete with single phase preventer as required -2 sets (m)03 Nos Automatic DOL/Star-delta starter for condensor water pump of rated capacity with over load relay, motor protection relay, SET auto manual selector switch, CTAmmeter with selector operated switch etc complete as required. (n)03 Nos Automatic DOL/Star-delta starter for Chilled water pump of rated capacity with over load relay, motor protection relay, SET indications, Push Buttons, auto manual selector switch, CT Ammeter with operated selector switch etc complete with single phase preventer as required (o)02 Nos Automatic DOL/Star-delta starter for hot water pump of rated capacity with over load relay, moter protection relay, SET indications, Push Buttons, auto manual selector switch, CToperated Ammeter with selector switch etc complete with single phase preventer as required. |
| 42 | Supply, Installation, Testing & commissioning of LT Panel board Manufactured from CPRI approved manufcturer, fabricated out of 2mm thick CRCA sheet floor-mounted front and back operated LT PANEL( Qty-01 No), as per IEC 61439, for 415V, 3-phase, 4-wire 50 HzAC supply system, each cubical shall be fabricated in compartmentalized design with CRCA sheet steel of 2mm thickness for frame work and covers, 2mm thickness for gland plates i/c cleaning & surface treatment with 9-tank process before powder coating in approved shade, having specified below Amp capacity extensible type TPN aluminium alloy bus bars with suitable rating neutral to high conductivity,MC/SMC bus bar supports, with short circuit withstand capacity of 35kA for 1 sec, bottom base channel of MS section not less than 100mm x 75mm x 5mm thick, fabrication shall be done in transportable sections, entire panel shall have a common copper earth bar of size 32mm x 5mm at the rear with 2 Nos earth stud, solid connections from main bus bar to switch gears with required sizes, with earth bus, Al bus bars, numbering & sign writing, interconnection &control wiring including the cost of connection through bus bar /copper conductor flexible connection with necessary interlocking as per requirement with PVC insulated FRLS copper conductor single core cable, cable alleys, cable gland plates in two halves, i/c providing following switch gears: (a) LL Digital electronic MFM cum kWh meter where provided shall be equipped with communication port & three-phase indicating lamps protected by 2 Amps SP MCBs. (b)415/110V suitable rating control transformer shall be provided for aux control supply. (c)Wiring with space heater, thermostat and control MCBS shall be provided for all vertical sections of main LT panel. |
| 43 | Item No 1.41 (Contd) (d)All incoming as well as outgoing feeders shall have industrial type locking facility. (e) Suitable danger board shall be provided. (f)All MCCBs shall be provided with front rotary handle and operating mechanism for door interlock with pad locking of MCCBs handles in "OFF" (g) Al hinged door shall be earthed through 2.5 sqmm tinned braided copper (h) Panels shall be powder-coated with grey paint shade No- RAL-7032 of IS-5. (j)Minimum degree of protection for following types of distribution panel enclosure shall be as per IS:60439 (k) All motor feeders MCCBs shall be of motor duty (l) Supporting/Base rigid steel framework. (m)TPNMCCBs shall mean 3 pole MCCBs with adequate sizes of neutral link. (n) Final rating & various parameters, in addition to those specified below, shall be selected on the basis of ambient conditions at site, client-specific requirements, requirement for the NOC from various statutory authorities, as per detailed design stage calculations. (o) Each Panel incomings/outgoings shall be provided with suitable Contacts/terminals to receive the aluminium conductor cables given in the latter section. (p) Each Panel shall be minimum IP-54 for indoor environment, except for outdoor conditions, which are mentioned separately. |
| 44 | Item No 1.41 & 1.42 (Contd) INCOMER (a)1 No63A4P MCCB (25 kA) I cutcs, thermal magnetic-based having earth fault protection with front operating rotary handle and as per ISAEC-60947 complete as required. METERING & INDICATION (a)1 set of R, Y, B phase, ON Indicating lamps (b)1 No (0-500V) Voltmeter with built-in VSS with 3 Nos 2ASP MCB (c)1 No (0-100A) Ammeter with ASS with 3 Nos 100/5ACTs BUS-BAR (a)1 set of 100ATPN aluminium Bus-Bar with colour-coded PVC sleeves OUTGOINGS Following Outgoings with thermal magnetic-based releases with Volt Meter & required CTs,indications, operating handle with door interlock, spreader links and phase barrier, solid neutral link and accessories as required. (lcs=Icu=16kA) for each. (a)1 Nos 40ATP MCCB (AHU, Spare) (b)6 Nos 25ASPN MCB Cc curve 10 Ka (c)Panel should have space to fix VFD in AHU, indicating lamp & all safety precautions in a Gl enclosure with necessary power and control cable as required. (d)PANEL described as above. |
| 45 | Supply, Laying, Testing and Commissioning of following sizes of XLPE insulated, PVC sheathed, round wire armoured aluminium conductor cable of 1.1 KV grade on cable tray/surface including clamps, ties etc. as required. (a)3.5 core x 70 sqmm As required (b)3.5 core x 25 sqmmAs required (c)3 core x 10 sqmmAs required (d)3 core x 6 sqmmAs required (e)3 core x 4 sqmmAs required |
| 46 | Supplying and making end terminations with brass compression gland and aluminium lugs for following sizes of PVC insulated and PVC sheathed /XLPE aluminium conductor cable of 1.1 KV grade as required. (a)3.5 core x 70 sq. mm As required (b)3.5 core x 25 sq.mm As required (c)3 core x 10 sq.mm As required (d) 3 core x 6 sq.mm As required (e) 3 core x 4 sq.mm As required |
| 47 | Providing & fixing of control wiring/ power cabling with following sizes of copper conductor armoured cable, making connections etc, as required (a)4 core x 1.5 sqmm As required |
| 48 | Supply, Installation, Testing and commissioning for earthing complete with galvanized steel earth plate 600 x 600 x 6.0 mm thick burried directly in ground (earth pit not less than 2.25 mtrs deep below ground level) with top edge of the plate not less than 1.5 mtr below normal ground level, connected to GI strip of size 32 x 6 mm by means of bolts, check nut, nuts and washers including charcoal dust and common salt, with necessary excavation in soft/loose soil,returning filling in and removal of surplus soil to a distance upto 50 mtrs, PCC pit in cement concrete 1:3:6 type C1 using (20mm grade stone aggregate), pre-cast RCC cover shall be provided in RCC 1:2:4 type B-1 (using 20mm grade stone aggregate), 40 mm thick pit cover reinforced with 8 mm dia TMT bars 75 mm c/c both ways, MS handle 12 mm dia, PGI funnel wire mesh and Gl watering pipe of 20 mm bore (light grade) and earth lead protection pipe 40 mm bore (light-grade) Gl pipe for earth lead protection, including earth work complete, etcas specified and directed by Engineer-in-charge. Note: Gl strip and protection pipe of 40 mm dia upto 7.5 meter length is deemed to be inciuded in the rate quoted. Details of earthing (a)LT Panel -02 Nos (b)Hot water panel-02 Nos (c)AHU panel-04 Nos (d)AHU -04 Nos (e)Chiller Units-03 Nos |
| 49 | Supply, Installation, Testing and commissioning for earthing complete with galvanized steel earth plate 600 x 600 x 6.0 mm thick buried directly in ground (earth pit not less han 2.25 mtrs deep below ground level) with top edge of the plate not less than 1.5 mtr below normal ground level, connected to GI strip of size 32 x 6 mm by means of bolts, check nut, nuts and washers including charcoal dust and common salt, with necessary excavation in soft/ loose soil ,returning filling in and removal of surplus soil to a distance upto 50 mtrs, PCC pit in cement concrete 1:3:6 type C1 using (20mm grade stone aggregate), pre-cast RCC cover shall be provided in RCC 1:2:4 type B-1 (using 20mm grade stone aggregate), 40 mm thick pit cover reinforced with 8 mm dia TMT bars 75 mm c/c both ways, MS handle 12 mm dia, PGI funnel wire mesh and Gl watering pipe of 20 mm bore (light grade) and earth lead protection pipe 40 mm bore (light-grade) Gl pipe for earth lead protection, including earth work complete, etcas specified and directed by Engineer-in-charge. Note: Gl strip and protection pipe of 40 mm dia upto 7.5 meter length is deemed to be inciuded in the rate quoted. Details of earthing (a)Cooling tower-02 Nos (b)Hot water pump-02 Nos (c)Chilled water pump-03 Nos (d)Condencer water pump-03 Nos |
| 50 | Suypply and layingGI earth electrode 32 x6mm strip , qty as per site requirement, complete all as specified and as directed. |
| 51 | Suypply and laying GI earth electrode 4mm dia wire complete all as specified and as directed. |
| 52 | Supply,Fabrication, and installation of following sizes of hot dip galvanized ladder-type cable trays including horizontal vertical bends, reducers, tees, cross members and other accessories as required and duly installed from the ceiling/ side walls with suitable sizes of channels/ angles with anti-corrosion painting, full threaded Gl rods etc complete as required & approved by the Engineer-in-charge. (a)150 mm (50 mmx1.6 mm thick) (b)300 mm (50 mmx 2.0 mm thick ) |
| 53 | Supply and fixing of digital temp & humid display system showing ambient temp / humidityand AHU roomtemp and humidity necessary control wiring with HWG , Humidifier & Thermostate and sensor complete all as specified and directed. |
| 54 | Supply and fixing Thermostat with control wiring from sensor to microprocessor panel , HWG with sensors of central AC Plantcomplete all as specified and directed. |
| 55 | NOTES for item No 1.1to 1.40 above (a)The rate shall be inclusive of Designing of Central AC plant along with specificationsand submitteddully vetted byIIT / NIT/ Government Enginnering college . (b)The parameters against each items shown above is for guideline only. The specifications suggested bythe Govtcertified Charted Engineer and approved by Accepting Officershall superseededto thegivenspecifications above and the rates aredeemed to be included in the quoted rates. (c)The completion of the work shall be issued in phased manner. Provisional completion of the work shall be issuedAfter physical execution of the work at site complete in all respect. (d)The complete central AC Plant schematic / line plan layout shall be approved by the contractor fromAccepting officer before commncement of work (e)The Phase -I completion of the work shall be issuedafter24 hours ofPhase-I Test to be conductedin presence of IEM, Engg-in-charge , GE and users Representative. (f) ThePhase -II ( summer / mansoon / winter ) Tests shall be carried out by The Rep of Accepting Officer /IEM.(g)After issue of Phase I completion, thePlant shall be operated by the contractor till completion of Phase -II and up to full satisfaction of GE/ Engg-in-charge)as per the contract provisions. (h) TheDefect liability period of the contract shallstart afterthe completion of all phase-II tests ). (j)The central AC Plant drawing layout designed and preparedby IIT / NIT / Government Enginnering college shall be submitted by the contractor for approval of the Accepting officer. (k)Recommendations of CFEES shall be incorporated while designing the AC Plant. |
| 56 | Supply and Fixing air curtain with and including arrangement for automatic operation using limit switches and control wiring mounted on angle iron frame work as per site requirement.The fixtures shall be designed and fixed so as to operate air curtain when doors are opened and should shut down when doors are closed. The size of doors3 mtr (width) x 3mtr (height). (The existing doors are of MS double leaves door shutters of 1.5 mtr width and 3 mtr Height ). MATERIAL CLONSTRUCTION Outer Cabinet: MS powder coated Impellers: Aluminium Blower Motor : 1440 RPM flame proof, single Phase, 220 V, 50 Hz Velocity : 12-14 mtr/sec Effective for 10 feet Height FLP Motor CMRI Dhanbad certified. |
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