PROVISION OF AIR CONDITIONING PLANT OF BLDG P-3 (NORTH TRANSMITTING STATION) AND P-4 (SOUTH TRANSMITTING STATION) AT TS MAHUL, MUMBAI

Amount

Providing & fixing false ceiling at any heights with semi perforated 12mm thick micro tegular edged GRG (Glass Fibre Reinforced Gypsum) false ceiling tiles of Size 595 x 595 mm of approved texture design and patterns having moisture content less than 2%, humidity resistance of 99%, NRCO.50 to 0.75 as per IS 8225:1987, Noncombustible as per BS 476 (part 4 )-1970 and light reflectance of 85% (minimum) to be laid in true horizontal level suspended on inter-locking metal T-Grid of hot dipped galvanized iron section of 0.33mm thick (galvanized @ 120 grams per sqm including both sides) comprising of main-T runners of size 15 x 32 mm of length 3000mm,cross-T of size 15x 32mm of length And secondary 1200mm intermediate cross-T of size 15 x 32 mm of length 600mm to form grid module of size 600x 600mm, suspended from ceiling using galvanized mild steel items (galvanizing @ 80 grams per sqm) i.e 50mm long, 8mm outer diameter M-6 dash fasteners, 6mm dia fully threaded hanger rod upto 1000mm length and L-shape level adjuster of size 85x25x2mm Galvanised iron perimeter wall angle of size 24x 24x0.40mm of length 3000 mm to be fixed on periphery wall / partition with the help of plastic rawl plugs at 450 mm center to center and 40mm long dry wall wood screws. The work shall be carried out as per specifications, drawing and as per directions of the Engineer-in-Charge

CENTRAL AIR CONDITIONING SYSTEM Supply, Installation, Testing, Balancing and Commissioning of Central Air-Conditioning plant and air conditioning systems as per scope of work given in the following items and sub items of work to maintain design temperature of 22 ± 2°C and humidity of 60±5% at the given buildings and as shown on drgs and based on other conditions as given in the User Data sheet (ANNEXURE-A) and all as required as per the standard code of practice in the given field and complete all as specified and directed by Engr-in-Charge. Note: Care has been taken to include all items as per below given scope of works, however in case any item of work civil or electrical or mechanical not specifically specified but essentially required for successful and efficient completion and commissioning of air conditioning system shall be procured and fitted in the system to achieve the targetted and optimum performance, the cost of which is deemed to be included in the quoted tender rates against each item and as a whole for the air conditioning of given buildings in this tender. CHILLERS. (2W + 1S) Water Cooled Inverter Scroll Chiller Package Supply, Installation, Testing and Commissioning of Inverter Scroll Chillers complete with Hermetic Compressor, R-134A or R-410A or R-407C Refrigerant, Motor, Water Cooled Condenser, Insulated Chiller, Integral acoustic insulation for the entire chiller to reduce noise level, Differential pressure switch, Victaulic coupling, Electronic expansion valve, Flow switch at Chiller & Condenser, Power control and microprocessor based control system, Vibration Isolator, Integral Refrigerant piping & wiring, Accessories as required and called for Automatic and safety Control mounted in central Console Panel, Necessary Cabling & Earthing Strip & All mounted on a Steel frame complete & Factory tested at test bed. Operating Voltage 415 V + 15 %, 50 c/s, 3 Phase, AC supply and in accordance with following specifications:- Chilled Water O/I Temp - 7°C / 12°C Cooling Water I/O Temp - 32.2°C / 37.8°C Chiller Fouling Factor - 0.000044 m² °C/W Condenser Fouling Factor - 0.000018 m² °C/W Part load energy efficiency at AHRI Relief ->6 Minimum COP at AHRI Relief - 4.8 Sound Pressure Level @ 3m should not exceed 75 db(A) Maximum ΔP across Evaporator ≤ 3.0 mwc Maximum ΔP across Condenser ≤ 8.0 mwc Model No. : XWC2VS-026AR3 of make : BLUE STAR or Equivalent make of CARRIER/ VOLTAS/DAIKIN

(a) Chiller capacity (actual at design parameters) - 24 TR [at P-3 BLDG AC Plant]

(b) Chiller capacity (actual at design parameters) - 24 TR [at P-4 BLDG AC Plant] Notes: [i] Following chiller accessories shall be provided with the chiller systems Restrained Spring Isolators - Vibration Isolator Of Approved Make as Required. Spring elements shall have a lateral stiffness greater than 1.2 times the rated vertical stiffness and shall be designed to provide a minimum of 50% overload capacity. Non-welded spring elements shall be polyester powder coated, and shall have a 1000 hr rating when tested in accordance with ASTM B-117. - Suitable for Chiller Operating Weight - 8 nos - Suitable for Chilled Water & Cooling Water Pumps & their Operating Weight - 16 nos [ii) Mapping shall be required for all critical points displayed on the chiller control panel. The chiller shall be BMS compatible and shall have RS485 / RS232 serial communication protocol.

Supply, Installation,Testing and Commissioning of Single Arch Rubber Bellow for Chillers and Pumps complete with Control Guide Assembly

(a) Single Arch Rubber Bellow for Chillers and Pumps for 65 mm Dia

(b) Single Arch Rubber Bellow for Chillers and Pumps for 80 mm Dia

(c) Single Arch Rubber Bellow for Chillers and Pumps for 100 mm Dia

COOLING TOWER Supply, Installation, Testing and Commissioning of FRP, induced Draught Counter flow rectangular/circular Cooling Tower(CTI Certified) with direct driven fan and motor with requisite water connections and float valves etc as Per Specification and as directed by Engr-in-Charge with following operating parameters : Certification- CTI certified Wet Bulb Temp. - 28.3°C Entering Water Temp. - 37.8°C Leaving Water Temp. - 32.2°C

(a) Cooling Capacity - 60 TR, Flow Rate - 200 GPM [at P-3 BLDG AC Plant]

(b) Cooling Capacity - 60 TR, Flow Rate - 200 GPM [at P-4 BLDG AC Plant] Notes:- Necessary foundation, Fabrication & Installation of MS structure for cooling towers as per OEM recommendation is deemed to be included in the quoted rates.

CHILLED WATER DISTRIBUTION SYSTEM (WITH INSULATION) Chilled Water Pumps with the following parameters Supply, Installation, Testing and Commissioning of Monoblock Pump, IE-3 motor rating, Primary Centrifugal pump sets with Cast Iron casing & bronze Impeller & Shaft seals with TEFC motor suitable for 3 Phase, 415 V +/- 10 %, 50 Hz, AC Power supply, Necessary Cabling & Earthing Strip, mounted on common base frame etc. The pump shall be duly insulated, as per specifications.

(a) Technical Data : (1W+1S) - With variable Frequency Drive (VFD) Controller Water Quantity -125 GPM Static Head - 24 meters Speed - 1450 RPM Impeller - Bronze [at P-3 BLDG AC Plant]

(b) Technical Data : (1W+1S) - With variable Frequency Drive (VFD) Controller Water Quantity - 125 GPM Static Head - 24 meters Speed - 1450 RPM Impeller - Bronze [at P-4 BLDG AC Plant]

Chilled Water Piping: Supplying, Laying/ elestomeric Testing and Commissioning of following nominal sizes of chilled piping including flanges, gaskets and bends/tees or fittings as required inside the building (with necessary clamps, vibration isolators and fittings but excluding valves, strainers, gauges etc.) duly insulated with closed cell elastomeric nitrile rubber of minimum 45 Kg / cu m density, Material shall have flammabillity class V-0 as per UL 94, thermal conductivity 0.037 W/MK or better at 20 deg mean temperature class 'O' insulation applied by suitable adhesive complete including repairing of damage to building etc. as per specifications and as required complete in all respect complete all as speicifed and directed by Engr-in-Charge. Note:- The Pipes of sizes 150mm & below shall be M.S. 'C' class as per IS : 1239 and pipes size above 150mm shall be welded black steel pipe heavy class as per IS: 3589, from minimum 6.35mm thick M.S. Sheet for pipes upto 350 mm dia. and from minimum 7mm thick MS sheet for pipes of 400 mm dia and above.Closed Cell Class ‘O’ Nitrile rubber with plain tubing & separate layer of Glass Cloth

(a) 80mm dia.(44mm thick insulation)(Layer-1:19+Layer2:25 With GC)

(b) 65mm dia.(44mm thick insulation)(Layer-1:19+Layer2:25 With GC) Note: 1. In case the chw pipe is run over ground on concrete pedastals or laid in ground, the insulation will be nitrile rubber as per above however the final covering shall be of either 26 swg aluminium sheet duly tapped, screwed and stainless steel stripped on external sheet sheet or non abraisive AC application cloth fiber of appropriate thickness duly covered and bound over the nitrile insulation. 2. Cost of above arrangements as may be applicable is deemed to be included in quoted rates.

Drain Piping Supply, Installation, Testing and Commissioning for Drain of M.S. 'B' class piping confirming to IS: 1239/3569 heavy class chilled water piping including all necessary fitting like anchor fasteners, pipe supporting frame structure, couplings, seamless bends, elbows, Tees, union, reducers, expander ASA 150 ISRF flanges, CAF gaskets, nuts & bolts etc. insulated with 13mm thickness Nitrile Rubber as per specifications complete in all respect complete all as speicifed and directed by Engr-in-Charge.

Butterfly Valve: Supplying, Fixing, Testing and Commissioning Butterfly valves with CI body SS Disc, Nitrile Rubber Seal & O- Ring PN 16 pressure rating for chilled water circulation as specified and with Insulation As per Specification complete all as speicifed and directed by Engr-in-Charge.

Ball valves: Supply, Installation, Testing & Commissioning of heavy duty valves PN-16 rated for all valves as specified and adequately supported with required supports, nuts boltsgasket etc and shown on the drawing complete with Insulation As per Specification:

3-Way Diverting ON/OFF Valve Supply, Installation, Testing & Commissioning of insulated 3 way ON/OFF valves of 80mm dia. (P-3 & P-4 Bldg AHU) forged brass body in a single body, flow regulation cartridge assembly shall be precision ground, 304 SS and shall be available in three KPaD control range, minimum flow range shall be capable of being activated by minimum 10 KPa & shall be capable of controlling flow with in ± 5% of rated flow. The actuator shall be for ON/OFF operation of valve & shall be suitable for 230 ± 10% V & 50 Hz. The valve shall work in tandem with thermostat control box for precise control of the supply air to achieve requisite temperature inside the given space fitted with sensors in return air and contactors/breakers as required & control wiring complete all as speicifed and directed by Engr-in-Charge.

BALANCING VALVE WITH BUILT IN MEASURING FACILITY with CI body flanged construction with EPDM coated disc with long pitch with protected out pipe insullation & PN 16 pressure rating for chilled / hot water circulation as specified with insulation as per speicification of 80mm dia complete all as specified and directed.

All as per item No. 11 above but 65mm dia

Supply and fix NON-RETURN VALVE 80 mm dia with dual plate of CI body SS plates vulcanized NBR seal flanged end & PN 16 pressure rating for chilled / hot water circulation including insulation complete all as speicifed and directed by Engr-in-Charge.

Supply and fix Y-STRAINER 80 mm dia of Ductile CI Body flanged ends with stainless steel strainer for chilled / hot water circulation including insulation complete all as speicifed and directed by Engr-in-Charge.

Supply and fixing in position the industrial type Pressure Gauges with gun metal / brass valves complete as required

Supply and fixing in position the mercury in glass industrial type Thermometers complete all as speicifed and directed by Engr-in-Charge.

Miscellaneous: Supply, Installation, Testing and Commissioning of Automatic air vent for heating, cooling and refrigation, high discharge capacity, brass body and coverstainless steel internal components, Maximum working pressure 16 bar Air discharge pressure: 6 bar of size 15/25mm dia complete all as speicifed and directed by Engr-in-Charge.

OPEN EXPANSION TANK Supply, Installation, Testing & Commissioning of Open expansion tank 3 layered as per the specification complete with Heavy duty float valves, accessories & insulation with nitrile rubber of 25mm thickness of the following capacity complete all as speicifed and directed by Engr-in-Charge. (a) Capacity - 500 litres [at P-3 BLDG AC Plant]

(b) Capacity - 500 litres [at P-4 BLDG AC Plant] Note: The expansion tank shall be installed at highest level in the system by providing new MS support structure as per requirement and the cost of which is deemed to be included in the above quoted rates.

Supply, Installation, Testing & Commissioning of Chilled Water Flow Switches complete. Notes: (i) All valves and fittings/ fixtures shall be suitable for PN 16 rating. (ii) All motorized valves (butterfly, three / two way and ball valves) actuators shall be "BMS" compatible (iii) All chilled water shall be duly insulated

CONDENSOR WATER DISTRIBUTION SYSTEM Cooling Water Pumps with the following parameters : Supply, Installation, Testing and Commissioning of Monoblock Pump, IE-3 motor rating, Cooling Water Centrifugal pump sets with Cast Iron casing & bronze Impeller & Shaft seals with TEFC motor suitable for 3 Phase, 415 V + 10 %, 50 c/s, AC Power supply, Necessary Cabling & Earthing Strip, mounted on common base frame etc. The pump shall be duly insulated, as per specifications.

(a) Technical Data : (1W+1S) [at P-3 BLDG AC Plant] Water Quantity - 198 GPM Static Head - 20 meters Speed - 1450 RPM Impeller - Bronze

(b) Technical Data : (1W+1S) [at P-4 BLDG AC Plant] Water Quantity - 198 GPM Static Head - 20 meters Speed - 1450 RPM Impeller - Bronze

CONDENSER WATER PIPE: Supplying, Fixing, Testing and Commissioning of condenser water pipes including flanges, gaskets and bends/tees or fittings as required of following sizes of MS 'C' class along with necessary clamps, vibration isolators and fittings such as bends,tees etc.but excluding valves, strainers, gauges etc. adequately supported on rigid supports duly painted/buried in ground including excavation and refilling etc. as per specification and as required complete in all respect complete all as speicifed and directed by Engr-in-Charge. Note:-The Pipes size 150mm & below shall be M.S. 'C' class as per IS : 1239 and pipes size above 150mm shall be welded black steel pipe heavy class as per IS: 3589, from minimum 6.35mm thick M.S. Sheet for pipes upto 350 mm dia. And from minimum 8mm thick MS sheet for pipes of 400 mm dia and above with GC Cloth and 2mm thick FRP Coating

(a) 100mm dia.

(b) 80mm dia.

VALVES WITHOUT INSULATION BUTTERFLY VALVE (MANUAL) - Supplying, Fixing, Testing and Commissioning of Butterfly Valve with CI body SS disc nitrile sheet & O-Ring & PN 16 pressure rating complete all as speicifed and directed by Engr-in-Charge.

(a) 100mm dia.

(b) 80mm dia.

Ball valves Supply, Installation, Testing & Commissioning of 32mm dia Heavy Duty Valves PN-16 rated for all valves, except for AHU valve station which shall be with PN-10 Rating valves as specified including additional supports, Nuts, bolts, gaskets etc complete all as speicifed and directed by Engr-in-Charge.

BALANCING VALVE WITH BUILT IN MEASURING FACILITY Supply, Installation, Testing & Commissioning 100 mm dia BALANCING VALVE with CI body flanged construction with EPDM coated disc with long pitch with protected out pipe insulation & PN 16 pressure rating for chilled / hot water circulation complete all as speicifed and directed by Engr-in-Charge.

NON-RETURN VALVE Supply, Installation, Testing & Commissioning NON-RETURN VALVE 100 mm dia with dual plate of C I body SS plates vulcanized NBR seal flanged end & PN 16 pressure rating complete all as speicifed and directed by Engr-in-Charge.

Supply and Fixing in position the industrial type Pressure Gauges with gun metal / brass valves complete all as speicifed and directed by Engr-in-Charge.

Supply & fixing in position the mercury in glass industrial type Thermometers complete all as speicifed and directed by Engr-in-Charge.

Miscellaneous (a) Supply, Installation, Testing and Commissioning of Automatic air vent for heating cooling and refrigeration, high discharge, capacity brass body and cover, stainless steel internal components, Maximum working pressure 16 bar Air discharge pressure: 6 bar - 15/25mm dia. Notes: All valves and fittings/ fixtures shall be suitable for PN 16 rating. All motorized valves (butterfly, three / two way and ball valves) actuators shall be "BMS" compatible

(a) 45 TR / 21000 CFM / external static pressure16-20 mm wg / FM AHU [at P-3 BLDG AC Plant]

(b) 45 TR / 21000 CFM / external static pressure16-20 mm wg / FM AHU [at P-4 BLDG AC Plant]

Humidistat & Strip Heaters: Supply, Installation, Testing and Commissioning fully automated humidity control system consisting below mentioned strip heater capacity in steps of 3 KW and control panel. The manufacturer shall furnish a control box containing contactors & relays of appropriate current capacity/size, circuit breaker and appropriate Airconditioning application Humidisat to ensure precise humidity control of 60 ± 5%. Heater control box shall be mounted on the designated hand side of the unit.)

(a) 36 KW [at P-3 BLDG AC Plant]

(b) 36 KW [at P-4 BLDG AC Plant]

Supply, Installation, Testing and Commissioning of Air Curtain of size 6'0" Wide, 1025 m³/hr, 12-14 m/sec noise level < 70 DB for (Door Ht = Approx. 4 m) complete with MS hanging supports, electrical cabling length suitable as per site condition, with velocity of 12-14 m/s. Make : Russell, Jet International, Systemair Note: Loading & Unloading, & Lifting Shifting till the dedicated floor level to be done by the AC Vendor.

DUCTING, GRILLS, DIFFUSER AND INSULATION: Supply, Installation, Testing and Commissioning of FACTORY / SITE FABRICATED rectangular sheet metal ducts as follows as per specifications detailed in tender, made of Class VIII GP sheet as per SMACNA Standard for medium pressure air flow with MS angle / TDF flanges, supports, anchor fasteners, food grade gaskets and RTV sealant in accordance with the approved shop drawings. It is mandatory to use factory fabricated ducts/fittings for minimum 75% of the ducting system. Use of Site fabricated ducts should be restricted to only 'to suit' pieces. Cold rolled sheets continuous galvanized sheet steel with zinc coating as per class VIII confirming to IS:277-1962 (revised)(where ever specified) of LFQ (Lock Forming Quality) grade. Galvanizing shall be of 120gms/sq. m (Total coating on both sides) The fabrication of the ducting system for air-conditioning & Ventilation shall confirm to SMACNA-1995 standards ("HVAC Duct Construction Standards - Metal and Flexible - Second Edition - 1995"-SMACNA). G.I. Sheet Metal Duct (Rectangular) Note: [i] Necessary opening in the walls shall be carried out for the installation of supply and return air ducts and all the opening shall be made good and sealed with water proofing mortar compound and matched with existing colour surface. [ii] The layout of the ducting system shall be got approved from GE before installation

(a) Ducting - 20 G

(b) Ducting - 22 G

(c) Ducting - 24 G

Supply, Installation, Testing and Commissioning of GI volume control Duct Damper complete with neoprene rubber gaskets, nuts, bolts, screws linkages, flanges etc, as per specifications complete all as speicifed and directed by Engr-in-Charge.

Supplying, Fixing, Testing and Commissioning of following Fire Dampers in supply air duct/main branch and return air path as and where required of required sizes i/c control wiring,the damper shall be motorized and spring return 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 be inbuilt mechanism and not externally mounted. The damper shall also be closed in the event of fire signal complete as required and as per specifications complete all as speicifed and directed by Engr-in-Charge.

(a) Fire Damper (Supply and return air both duct)

(b) Fresh Air Damper (Supply and return air both duct)

(c) Actuator

Supply, Installation of aluminiumextruded powder coated Square type (600mm x 600mm grid ceiling type) Supply/return air diffusers or grills with VCD and 32mm nitrile Insulated Plenum complete all as speicifed and directed by Engr-in-Charge.

Supply, Installation of aluminium extruded powder coated Square type (600mm x 600mm grid ceiling type) Return air diffusers without VCD and 32mm nitrile Insulated Plenum complete all as speicifed and directed by Engr-in-Charge.

Supply and installation of extremed aluminium power coated linear grilles with VCD/OBD-5AG with horizontal fixed bars of 15 x 1.2mm thick and 13mm spacing with '0' degree reflection complete all as specified and directed by Engr-in-Charge.

Supply, Installation, Testing and Commissioning Of Thermal Insulation Of Ducts with 25mm thick Nitrile Rubber all complete all as per specifications given in the P.S. forming part of this tender. Density of Material shall be between 40 to 60 Kg/m3. Material shall have flammabillity class V-0 as per UL 94 and shall be FM Approved complete all as speicifed and directed by Engr-in-Charge.

Supply and Installation of Acoustic Lining within supply air ducts with 32mm thick open cell Nitrile Rubber complete.

Supply and fixing of 26G aluminium cladding for out side duct for mechanical protection complete all as specified and directed by Engr-in-Charge.

Data Logger Supply, Installation, Testing and Commissioning of Temperature & Humidity Digital data logger with display & memory card for keeping 3 months database 7 capable for windows protocol on computer with Audio visual alarm system including all sensors, cabling and wiring (Indor + Outdoor) complete all as specified and directed by Engr-in-Charge.

AHU Panels: Supply, Installation, Testing and Commissioning 3 Phase and Neutral, 415 volts indoor type, factory made free standing floor mounting or Wall mounting, dust and vermin proof cubical type, LT panel fabricated from 2.0 mm Indoor type thick CRCA sheet duly compartmentalized for each switch gear, front hinged opening locking arrangement with chromium plated 19 mm dia locks, louvers and air vent gasket for natural air, `U` shape rubber gasket, voltmeter, ammeter, Frequency meter. Panel should be anti corrosive coating and finally epoxy polyester powder coating of Siemens Grey shade (RAL-7032), Protection class IP 43, fully compartmentalized design with 150 Amps, Cu Busbar and comprising following complete all as specified and directed by Engr-in-Charge.:- Incoming :- 100 A MCCB FP 16 KA with MF meter and dispalys Outgoing:- (i) 32 A MCCB TP 16 KA with suitable starter - for AHU fan (ii) 63 Amps, TP, MCCB, 16 KA – 01 No For Humidistat/ Heater control box (iii) 10 A SP MCB - for Thermosat and 3 way diverting valve control box Note: 1. Minor changes in control panel for any extra/additional provisions as may be essentially required for succesful commisioning and functioning of various plants and components as per the overall requirement to meet the specified air-conditioning perforamance shall be provided by the contractor without any additional cost to the department. 2. Quoted cost shall include control & starter panel, transformer for Energy valve, copper armoured cable from control panel to motor, copper earthing, copper armoured control cabling and hook up to its controller. The control & starter panel shall be complete with necessary control, including OLP, SPP, ON/OFF push buttons with ON indications, 2 nos. non polarised NO-NC contacts tripping on signal from Fire Dampers / Fire Alarm Panel. 3. Controller shall also have fire trip alarm to shut AHU incase of signal from fire panel

APFC Panel :- Supply, Installation, Testing & Commissioning of fully automated power factor controlling APFC panel with all protection, displays and indicators and as per following capacities 40 KVAR - Contactor Based with Aluminium Reactor APFC Panel in steps of 3x10 KVAR + 2 x 5 KVAR configuration complete all as specified and directed by Engr-in-Charge.

(a) 30 KAVR in steps of 2x10 KVAR + 2x 5 KVAR (P-3 Bldg AC plant)

(b) 30 KAVR in steps of 2x10 KVAR + 2x 5 KVAR (P-4 Bldg AC plant)

POWER CABLES Supply,Laying, Testing & Commissioning for ISI marked 1.1 kV grade aluminium conductor, XLPE insulated armoured cables of the following sizes conforming to IS: 7098 (Part 1)- 1988 having stranded aluminium compact shaped conductor laid in trenches or on cable trays as per Cl. 2, IS: 8130- 1984, PVC inner sheath, single armouring of galvanized steel strip/wire and PVC Type ST2 outer sheath conforming to IS: 5831- 1984, including termination complete as specified and directed.

(a) 3.5 Core X 95 mm² (Chillers)

(b) 3.5 core X 50 mm² (AHU panel & Heaters * APFC Panel)

(c) 4 Core X 16 mm² (Cooling Towers)

(d) 4 Core X 10 mm² ( Pumps)

(e) 3 Core X 6 mm² ( Local DB)

(f) 3 Core X 2.5 mm² (Misc)

(g) 3 Core X 1.5 mm² (Misc)

Cable Tray Supply and Installation of Hot Dipped Galavanised Ladder Type Tray 2mm thick Cable trays of following sizes.

(a) 400 W x 50 H x 2mm THK cable trays

(b) 200 W x 50 H x 2 mm THK cable trays

(c) 100 W x 50 H x 2mm THK cable trays

(d) 50 W x 25 H x 2mm THK cable trays

EARTHING M & L for Earthing complete with GI earth plate electrode of 600mm x 600mm x 6mm size, buried directly in ground (earth pit not less than 2.25 m deep below ground level) with top edge of the plate not less than 1.5 m below normal ground level, connected to GI strip of size 25mm x 4mm as earth lead, by means of bolts, buts, check nuts and washers of galvanised iron or steel, galvanized iron pipe of 40 mm diameter, connected to earthing test point, all as shown in electrical plate No. 5 connected to earthing test point all as specified or indicated including testing on completion and including excavation, earthwork, PCC earth pit of dimensions 550 mm X 550 mm (outer) and 300 mm X 300 mm (inner) and 250 mm deep, with a 10 mm thick CI cover, hinged to CI frame on ground level, GI watering pipe, funnel, etc. complete as specified and directed by the engineer-in-charge. Notes: (i) The cost of GI earth continuity conductor with GI pipe 40mm medium grade upto 7.5m is deemed to be included in r/o above item (ii) The earth chamber to be constructed 0.5m from edge of earth pit with necessary watering arrangement. The cost for the same is deemed to be included in above item Note: Earthing shall be meshed together and will be terminated on two diffrent wall mounted common bus/test link made of 50mm x 6 mm GI strip with round holes for bolting of earthing connections.

Material and Labour for 25 x 6 mm GI Earth Strip complete all as specified and directed

Material and Labour for 50 x 6 mm GI Earth Strip complete all as specified and directed

Material and Labour for 8 Gauge GI Wire complete all as specified and directed

Supply and fix in replacement of HDPE makeup water tank multi layered of 2000 lts capacity makeup 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 complete all as specified and directed. Note : (i) The HDPE tank shall be placed on a sturdy PCC platform at appropriate height all as required and as directed by Engr-in-Charge. (ii) The HDPE tanks shall be secured on all four sides with suitable MS frame work up to a height of 4 feet, to withstand a strong wind pressure

General Notes for entire scope of work from item No. 1.00 to 46.00 : Supply & Installation Of Structural Steel & Other Civil Wks The scope of work for air conditioning system also includes all kind of civil works and complete supply, transport, unloading, shifting & Fabrication of steel sections and erection of MS base frames, MS angle channels, flat,anchor fasteners etc. for supporting various items of equipment such as various panels/switchgear, dummy panels, adaptor boxes addition support for proper cable termination, MS Fabricated cable trays, push button stations, junction boxes, DB etc. . The scope include welding, bolting, chipping, grouting etc., including applying one antirust coat of approved primer and two finished coats of approved paint with primer & paint, breaking and finishing of walls, floors etc. Contractor has to apply one coat of antirust paint (Red-oxide ) before installation. . The scope is inclusive of minor civil work as required, supply of GI hardware materials, consumables, tools & tackles and necessary labour with supervision but not limited to, and complete as per approved drawings, specification and directions of Engineer-In charge. The scope also includes transportation of material from owner’s issue point to actual place of work by contractor's own lifting and transporting arrangement. The cost of all these elements deemed to be included in the quoted rate against each item and nothing extra shall be payable.

Outsourcing of services round the clock ( consisting of three shifts) including Sundays and holidays and operation of Central type air conditioning plant of capacity 45TR (1W+1S) and 45TR (1W+1S) ( One plant each to be run at a time and one will be kept as stand by) including all connected electrical items such as main switch, starter, change over switch, MCCB, voltmeter, ammeter, panel board etc, cooling tower, condenser or water pump ,valve system, controlling system, condenser, refrigerant line, adjusting valve, refrigerant valve, bypass valve, daily checking, leakage, checking noise, controlling temp. of plant, cleaning of plant and it's surrounding area etc, by one Ref Mech (Skilled) at each station given under per shift for 03 shifts in a day (Total 06 No's Ref/Mech) all as per manufacturers instructions and as specified and directed by Engr-in-charge.

(a) First (for 11 Months after completion). Location: NORTH TRANSMITTING STATION, TS MAHUL (P-03 AC Plant) [One regrigerator mechanic (Skilled) in each shift (i.e. 3 refrigerator mechanick for 3 shifts per day)]

(b) Second (for 11 Months after completion of (a) above). Location: NORTH TRANSMITTING STATION, TS MAHUL (P-03 AC Plant) [One regrigerator mechanic (Skilled) in each shift (i.e. 3 refrigerator mechanic for 3 shifts per day)]

(c) Third (for 11 Months after completion of (b) above). Location: NORTH TRANSMITTING STATION, TS MAHUL (P-03 AC Plant) [One regrigerator mechanic (Skilled) in each shift (i.e. 3 refrigerator mechanic for 3 shifts per day)]

(d) Fourth (for 11 Months after completion of (c) above). Location: NORTH TRANSMITTING STATION, TS MAHUL (P-03 AC Plant) [One regrigerator mechanic (Skilled) in each shift (i.e. 3 refrigerator mechanic for 3 shifts per day)]

(e) Fifth (for 11 Months after completionof (d) above). Location: NORTH TRANSMITTING STATION, TS MAHUL (P-03 AC Plant) [One regrigerator mechanic (Skilled) in each shift (i.e. 3 refrigerator mechanic for 3 shifts per day)]

(f) Sixth (for 05 Months after completion of (e) above). Location: NORTH TRANSMITTING STATION, TS MAHUL (P-03 AC Plant) [One regrigerator mechanic (Skilled) in each shift (i.e. 3 refrigerator mechanic for 3 shifts per day)]

(g) First (for 11 Months after completion). Location: SOUTH TRANSMITTING STATION, TS MAHUL (P-04 AC Plant) [One regrigerator mechanic (Skilled) in each shift (i.e. 3 refrigerator mechanic for 3 shifts per day)]

(h) Second (for 11 Months after completion of (g) above). Location: SOUTH TRANSMITTING STATION, TS MAHUL (P-04 AC Plant) [One regrigerator mechanic (Skilled) in each shift (i.e. 3 refrigerator mechanic for 3 shifts per day)]

(i) Third (for 11 Months after completion of (h) above). Location: SOUTH TRANSMITTING STATION, TS MAHUL (P-04 AC Plant) [One regrigerator mechanic (Skilled) in each shift (i.e. 3 refrigerator mechanic for 3 shifts per day)]

(j) Fourth (for 11 Months after completion of (i) above). Location: SOUTH TRANSMITTING STATION, TS MAHUL (P-04 AC Plant) [One regrigerator mechanic (Skilled) in each shift (i.e. 3 refrigerator mechanic for 3 shifts per day)]

(k) Fifth (for 11 Months after completionof (j) above). Location: SOUTH TRANSMITTING STATION, TS MAHUL (P-04 AC Plant) [One regrigerator mechanic (Skilled) in each shift (i.e. 3 refrigerator mechanic for 3 shifts per day)]

(l) Sixth (for 05 Months after completion of (k) above). Location: SOUTH TRANSMITTING STATION, TS MAHUL (P-04 AC Plant) [One regrigerator mechanic (Skilled) in each shift (i.e. 3 refrigerator mechanic for 3 shifts per day)]

NOTES for item No. 51.00 to 51.12 :- (a) Complete hourly log sheets and data records shall be maintained by the operating staff. The log sheets shall show a minimum of hourly details of - which Compressor/CHW pump/CDW Pump/Cooling tower is in operation, current drawn by various machines, voltage levels, condition in AHU room and in the air conditioned premises. state of DG set running/testing/oil position etc. The log sheets shall also show and record any defect in any plant/sub plant clearly in the remarks column. Log sheets of previous 30 days shall be always maintained at plant room. (b) The Contractor shall Employ Refrigeration mechanic having minimum ITI qualification from Govt recognised institute with adequate knowledge & minimum 2 years experience in maint / operation of AC plants. the operator must competent to carry out the minor maint all as directed. (TOTAL number of operators required per day are 03 nos.) (c) Contractor shall pay the wages to the employees through e-payment i.e Adhaar linked bank accounts (credit to their bank account). Engineer-in-charge shall ensure that e-payment made to employees and their wages shall not be less than minimum wages fixed by state Govt or Central Govt whichever is more. Monthly e-banking statement shall be furnished by the contractor to the Engr-in- charges and the same shall be kept in record verified. (d) It is the responsibility of contractor to deposit the employees provident fund (EPF) to the concerned authority as per the prevailing scales as laid down by Ministry of labour for all operator/helper (as applicable) and necessary proof to this regard shall be submitted to the engineer in charges for verification and record. The quoted rates shall be deemed to be included of above provisions. in case contractor fails to produce the proof of EPF, the same shall be recovered from his dues as per the prevailing scale plus 15 percent department. (e) The contractor shall maintain all the registers under various labour law rules. 2017 and shall be produced to the Engineer-in-Charge as well as officers detailed by central labour department. (f) Each shift duration shallbe 8 hours & duty timing will be decided by Engr-in-Charge. (g) The unit rate quoted shall deemed to be included JO, cost of labour for daily routine maintenance for trouble free functioning of installation. (h) In case of any abnormal noise/ complaint the plant should be put off and same should be brought to the notice of Engr-in-charge. (i) The operator employed by the contractor shall be capable of carrying out minor repair/ maintenance & should have well experience in AC plants as applicable. (j) The quoted rate is deemed to be inclusive of cotton waste, cleaning material etc& Contractor will ensure general area cleanliness and upkeep of the installation on daily basis. (k) The quoted rate is deemed to be inclusive of tools & testing instruments required for operation & maintenance of AC plants. (l) The rate quoted shall to be inclusive of safety gear & required tools for minor maintenance. In case of failure to provide tools kit & safety kit spanner sets, hand gloves. (m) The Contractor shall not employ same tradesman continuously for more than 11 months during the Contract period. (n) The contractor shall provide 02 uniforms to each operator and design Of uniform shall be got approved. In case of failure, a penalty of Rs 2000/- per uniform willbe levied and recovered from their dues. (o) In case of failure due to absence of operative staff the contractor shall be liable to pay compensation at twice the cost of a day's Manning & Operation derived from pro rate of Sch'A' quoted rates. (p) The contractor shall maintain proper records of all kinds of daily, weekly, monthly, quarterly, half yearly and yearly or whatsoever maintenance is carried out during contract period in a binded book/register and shall obtain the signature of engineer in charge every fortnighty. (q) The contractor shall provide board at proper location near each installation during writing the same of operators and mobile number shift wise. (r) The contractor shall provide safety gears to AC plant operator and cost shall be deemed to be included in quoted rates.

Comprehensive maintenane comprising of routine, preventive & breakdown maintenance of chilled water type central air conditioning plant of capacity 45TR (1W+1S) and 45TR (1W+1S) installed, comprising of all devices and accessories through out 12 months on all days including sundays and holidays for a period of 03 years after expiry of defects liability period (i.e 24 months after completion of all phase II tests) complete all as specified and directed and as shown below:-

(a) 1st year after expiry of defects liability period. Location: NORTH TRANSMITTING STATION, TS MAHUL (P-03 AC Plant)

(b) 2nd year after expiry of defects liability period.Location: NORTH TRANSMITTING STATION, TS MAHUL (P-03 AC Plant)

(c) 3rd year after expiry of defects liability period. Location: NORTH TRANSMITTING STATION, TS MAHUL (P-03 AC Plant)

(d) 1st year after expiry of defects liability period. Location: SOUTH TRANSMITTING STATION, TS MAHUL (P-04 AC Plant)

(e) 2nd year after expiry of defects liability period. Location: SOUTH TRANSMITTING STATION, TS MAHUL (P-04 AC Plant)

(f) 3rd year after expiry of defects liability period. Location: SOUTH TRANSMITTING STATION, TS MAHUL (P-04 AC Plant)

Notes for item No. 52.00 to 52.06:- (a) The contractor shall be responsible for periodical maintenance, as per maintenance schedule attached and specified including renewal / replacement of parts, fittings / fixtures filling of refrigerant go etc required for smooth functioning of the plant as per manufacturers instructions. (b) All spares of minor/ major nature required to keep the plant in healthy functional state are considered to be included in the above mentioned annual maintenance. All defects shall be repair promptly. Non-operation of plant due to any defect or inability to maintain the desired temperature and humidity inside the premises shall invite penal charges. The penalty applied will be @ Rs 1000 pe hour in case of repairs/rectification to achieve the requisite conditions are not completed with in 6thours of reporting by department. Data loggers place at the premises will be referred in support of the functioning or non-functioning of the plant. (c) The contractor is required to enter into a MOU with the OEM of chiller plant for providing comprehensive AMC inclusive complete coverage of the maintenance liability of the chiller units. The MOUA shall be finalized before completion of the project and it shall cover the complete period of five years (2 years DLP and 3 years as per above schedule) (d) The department reserves the right to keep an amount of amount equivalent to total 16% of the chiller cost (@ 4% per annum AMC) as warranty money in case contractor fails to enter into MOU with the Chiller's OEM. The department will be at liberty to enter into this kind of MOU directly with the OEM of chillers and the liability so arising shall be adjusted against above mentioned reserve amount/payments due to contractor.

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Parksons Engineering Company Pvt Ltd