As and As and Provision of Central Air Conditioning Plant for Non AC Store House Building No. P - 336 at NAD, Visakhapatnam

Amount

Supply, installation, testing and commissioning of Floor Mounted Compact Scroll type DX Water Cooled Condensing Unit of Capacity not less than 52 TR, suitable for ambient conditions, with AHRI certification complete with Hermetic Scroll type Compressors with independent Circuits, Water Cooled Shell and Tube type Condenser, with Carbon Steel Shell and Seamless Copper Tubes with 19 mm thick Nitrile Rubber Insulation, Common Base Frame, Interconnected Copper Refrigerant Piping and Wiring, Vibration Isolators, Automatic Safety Controls, Flow Switch at Condenser, Ozone friendly CFC Free Refrigerant Gas R-134a / 407C and including Electronic Expansion Valve for Refrigerant Flow Control, properly spaced Baffles for maintaining Optimum Water Velocity and Heat Transfer and the tubes shall be adequately supported complete all as per manufacturer’s instructions, as specified and as directed. Note: [a] The Chiller shall be designed for a Working Pressure of 150 PSIG and Hydraulically Tested at 225 PSIG. [b] One of the Three condensing unit shall be factory AHRI tested at design conditions at 100%, 75%, 50% and 25% load respectively. Test certificates shall be produced for all the condensing units. [c] The quoted price shall be inclusive of a unit mounted Automatic Star/Delta Starter to ensure that the starting current does not exceed twice the full load current, Victaulic Coupling, System Integrator capable of giving industry standard [Modbus / Bacnet] Output to BMS for Critical Parameters. 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. [d] The motor shall be suitable for 3 Phase, 415 Volts ± 10%, 50 Hz, AC Supply [e] Electric panel shall have an IP 54 rating. [f] Necessary civil work viz. PCC foundation for placement of chillers shall be covered in the scope of work.

[g] The Chiller shall be as approved and shall meet the following design criteria: [i] Chiller: [a] Chilled Water IN: 54°F [b] Chilled Water OUT: 44°F [c] Fouling Factor: 0.0005 [in FPS Units] [d] Water Flow Rate: 2.67 USGPM/TR [ii] Condenser: [a] Condenser Water IN: 90° F [b] Condenser Water OUT: 100° F [c] Fouling Factor: 0.001 [in FPS Units] [d] Water Flow Rate: 4.25 USGPM/TR [iii] Minimum COP [at ARI Conditions]: 4.0

Supply, installation, testing and commissioning of End Suction & Top Discharge, Non-Self-Priming, Single-Stage, Centrifugal Volute Type Pump of capacity 125 USGPM Water Flow at 20 Metres Head, having Cast Iron Casing, Enclosed type Dynamically balanced Phosphor Bronze / SS Impeller, High Tensile Steel Shaft, Carbon Steel Stuffing Box [Sealed by Mechanical Seal], Deep Groove Ball Bearings, TEFC Squirrel Cage High Efficiency Induction Motor, Star/Delta Starter Panel, base Plate, Mounting Channel Frame, accessories and fittings, viz. Mechanical Seal, Pressure Gauges, Thermometers, Drains, Coupling, Coupling Guard, Vibration Isolation arrangement by means of Spring / Rubber type mounting suitable for operation on 3 Phase, 415 Volts ± 10%, 50 Hz, AC Supply complete all as per manufacturer’s instructions, as specified and as directed.

Supply, installation, testing and commissioning of FRP Rectangular / Round shaped Vertical induced Draught Counter Flow Cooling Tower of capacity not less than 230 USGPM and not less than 60 TR capacity with uniform water distribution and optimal heat transfer, having tough Fiberglass Reinforced Plastic [FRP] casing of sufficient structural strength to withstand vibrations and wind velocity up to 60 Metres / Second, FRP Basin, Rigid Honeycomb Type PVC Fill of suitable thickness, SS Sprinklers and Non Clogging Sprinkler Pipes, FRP Drift Eliminator, Energy Efficient Induced Draught Axial Type Fans with factory set and dynamically balanced blades pitch, TEFC Squirrel Cage High Efficiency Induction Motor with IP 65 Protection suitable for 3 Phase, 415 Volts ± 10%, 50 Hz, AC Supply, Inlet, Outlet, Drain and Over Flow Nozzle connections etc. complete all as per manufacturer’s instructions, as specified and as directed.

Supply, installation, testing and commissioning of End Suction & Top Discharge, Non-Self-Priming, Single-Stage, Centrifugal Volute Type Pump of capacity 208 USGPM Water Flow at 20 metres Head, having Cast Iron Casing, Enclosed type Dynamically balanced Phosphor Bronze / SS Impeller, High Tensile Steel Shaft, Carbon Steel Stuffing Box [Sealed by Mechanical Seal], Deep Groove Ball Bearings, TEFC Squirrel Cage High Efficiency Induction Motor, Star/Delta Starter Panel, base Plate, Mounting Channel Frame, accessories and fittings, viz. Mechanical Seal, Pressure Gauges, Thermometers, Drains, Coupling, Coupling Guard, Vibration Isolation arrangement by means of Spring / Rubber type mounting suitable for operation on 3 Phase, 415 Volts ± 10%, 50 Hz, AC Supply complete all as per manufacturer’s instructions, as specified and as directed.

Supply, installation, testing and commissioning of Double Skin Type Horizontal, Floor Mounted, Top / Side Discharge Air Handling Units of 40 TR, 12000 CFM Capacity, having corrosion resistant extruded aluminum hollow profile with Thermal Break, Heavy Gauge Galvanised Steel Channel Base Frame, 43 mm thick Double Skin Panel with pressure injected CFC & HCFC free PUF with 'k' value of 0.02 W/°C m & density 40 KG/Cu.m, Pre-Coated, Pre-Plasticized galvanised outer and inner skin of 0.60mm thick, Air-Tight Casing using Gaskets and Self-Adhesive Tapes, AMCA certified energy efficient fans with double inlet double width forward or backward curved impellers for high static pressure mounted on Aluminum Extruded Slide Rail Base Frame, DX Coils with combination of 6 Rows deep with anti-corrosion Aluminum fins, PVC Nylon Hinges & Handles, View Port and Marine Lamp, Limit Switch, SS-304 Drain Pan, 10 Micron Pre-Filters, Inspection Windows / Doors, Mixing Box and Supply / Return / Fresh Air Dampers complete all as per manufacturer’s instructions, as specified and as directed. The Design Criteria of the AHU shall be as under: [a] Suitable DIDW [Double Inlet Double Width] Fan with AMCA certified Blower having outlet velocity not exceeding 9.2 Metres / Second [b] 4 Pole, TEFC, High Efficiency, Squirrel Cage Induction Motor Drive having BHP rating 20% higher than the peak capacity, suitable for 3 Phase, 415 Volts ± 10%, 50 Hz, AC Supply [c] V-Belt Drive Assembly with Pulleys, Belt, Guard, etc., Double Canvass Connections with Zip to Discharge Duct / Plenum, etc. [d] 50 mm thick, Washable HDPE, 90% down 10 Micron Pre-Filters, Filters, Fixing Framework, Hinge Type Access Doors etc. [e] 6 Row deep Chilled Water Coil section with Copper Fins and Copper Tube tested on 21 KG / Sq.cm with SS Sandwiched Drain Tray, etc.

Notes for Serial Item No. 1, 2, 3, 4 & 5: [a] All civil works required to install, test and commissioning the equipment such as earth work excavation, RCC foundation for equipment, necessary cable ducts with MS covers 10mm thick duly painted, earth work excavation for laying pipe, cable etc. & making good all disturbed/broken surfaces to match existing surface including fixing the ducting, painting / distemper / colour wash etc. shall be deemed to be included in the rate quoted by the contractor. [b] Necessary water supply pipe connections for the Expansion Tank and A/C Plant from existing water supply connection is deemed to be included in the quoted rate. [c] All 3 Phase Motors shall be provided with independent Single Phase Preventor with phase reversal protection. [d] Manufacturers, Technical backup after sales service support shall be provided for chiller package. [e] All loads up to 63 Amps shall be controlled by MCB and for loads above 63 Amps shall be controlled by MCCB. [f] Initial charging of Oil and Refrigerant shall be deemed to be included in the quoted rate. [g] Velocity of air in supply air duct shall not exceed 450m/min [1500FPM] and velocity at diffuser outlet shall not exceed 150m/min [500 FPM] [h] Necessary drain connection at AHU Room and AC Plant room shall be provided by the tenderer and shall be deemed to be included in the quoted rate. [i] Any work not included in the above details, but is an inescapable technical requirement for the efficient performance and smooth functioning of the plant shall be clearly specified and included in the offer. [j] Electric and water supply for Phase – I and Phase – II testing will be provided free of cost by the department.

[k] The complete plant shall be installed, tested and commissioned only by the skilled engineer of the original Manufacturer of the Chiller Package. Necessary confirmation shall be submitted by the contractor after completion of the work with test certificates before undertaking by the department for further testing as per tender and cost is deemed to be included in the quoted rate. [l] All Equipment shall be connected with earth strip of size 32 X 6 mm is deemed to be included in the quoted rate. [m] Phase – II Summer, Monsoon & Winter tests shall be carried out as specified in the Particular Specifications and testing officer shall be nominated by Accepting Officer. [n] After completion of Phase – I test, the plant shall be continuously run for 24 hours [Three Shifts of 8 Hours each per day] by the contractor by providing services of one operator in each shift of 08 Hours till completion of all the Phase – II tests and the contractor shall be liable to carry out all the maintenance or repair or replacement of parts [if any] required during this period and quoted rate shall be deemed to be included for this provision. [o] Removal of all electrical fitting/fixtures from ceiling/wall and re-fixing the same including making good of all dismantled surfaces along with provision of new point wiring [wherever damaged] complete as per existing size etc. and shall be deemed to be included in the rate quoted by the contractor. [p] Contractor shall visit the site to make themselves familiar with working conditions, accessibility of site, availability of materials, location of AHU and other cogent condition etc. before quoting the tender. Nothing extra shall be paid consequent to any mistake or misunderstanding or otherwise on this account.

S & F Rotational Moulded Polythene [HDPE] Expansion Tank, ISI Marked, Cylindrical & Vertical Type 2000 Litres Capacity, of Pressure rating to suit the system pressure and sized adequately to compensate for water expansion due to operating temperature variations, conforming to IS - 2825 for "Non-Fired Pressure Vessels" with interchangeable EPDM-Butyl Rubber Membrane complete all as specified and as directed.

S & F Rotational Moulded Polythene [HDPE] Expansion Tank, ISI Marked, Cylindrical & Vertical Type 5000 Litres Capacity, of Pressure rating to suit the system pressure and sized adequately to compensate for water expansion due to operating temperature variations, conforming to IS - 2825 for "Non-Fired Pressure Vessels" with interchangeable EPDM-Butyl Rubber Membrane complete all as specified and as directed.

Supply, Installation, testing and commissioning of Condenser Water Piping made out of MS ERW Pipe, 125 mm bore, Medium Grade , conforming to IS – 1239 including all fittings i.e. Bends, Tees, Teducers, Flanges, Structural Support, Wooden / Puff Blocks, etc.and applying two coats of Synthetic Enamel paint over one coat of Red Oxide / Zinc Chrome Primer including preparation of surfaces complete all as specified and as directed.

Supply, Installation, testing and commissioning of Condenser Water Piping made out of MS ERW Pipe, 100 mm bore, Medium Grade , conforming to IS – 1239 including all fittings i.e. Bends, Tees, Teducers, Flanges, Structural Support, Wooden / Puff Blocks, etc.and applying two coats of Synthetic Enamel paint over one coat of Red Oxide / Zinc Chrome Primer including preparation of surfaces complete all as specified and as directed.

Supply, Installation, testing and commissioning of Non-Chemical type Online Electrostatic Scale Preventor of size 125mm bore including control panel, nuts, bolts and gaskets complete all as specified and as directed.

S & F Butterfly Valve, 100mm Bore, Class PN – 1.6, Flanged and Drilled, Conforming to IS - 13095, Cast Iron Body, SGI [Nylon Coating] Disc, SS AISI 304 Disc Seal, CS Clamping Ring, SS AISI 410 Shaft with Hand Lever operated for manual operation including all Joints with Rubber Gasket and Jointing Materials, Bolts, Nuts, Washer complete all as specified and as directed.

S & F Cast Iron Non Return Valve [Swing Check type Multidoor Reflux Valve] with bypass arrangement with suitable flanges, suitable for 100 mm bore pipes confirming to IS – 5312, Class PN –1.6, including necessary nuts, bolts, washers, rubber gasket etc. for jointing, suitable to handle clear water having turbidity up to 5000 PPM complete all as specified and as directed.

S & F 100mm Bore M.S. Y-Strainer Complete with Stainless Steel Bucket having 3 mm Perforation, Flanged Ends, Filtration Area of 1:4, including necessary nuts, bolts, washers, rubber gasket etc. complete all as specified and as directed.

S & F Balancing Valve, 100mm Bore, Class PN-16, 2 Way, Globe type, Balanced / High Rangeability, Flanged and Drilled, Cast Iron Body, with Pressure Test Cocks only in EN-3 Stem EN-3 Disc and EPDM Sealing Disc for Manual Operation including all Joints with Rubber Gasket and Jointing Materials, Bolts, Nuts, Washer complete all as specified and as directed and shall have following parameters: Nominal Pressure: PN16 Temperature: –10°C to +110°C Body Material: IS – 210, FG 220 CI Stem Material: ASTM A276, GR SS 410 Disc Material: Stainless steel Disc Hand Wheel: Cast Iron Leakage Rate: No Visible Leakage Medium Type: Water Flange Standard: ISO7005-1 [GB/T 9113] Shell Test Pressure: 24 Bar Seal Test Pressure: 17 Bar

S & F 40 mm bore CPVC Pipes SDR 11 & Plain CPVC SDR 11 Fittings such as bends, tees, short pieces, connectors, elbows, reducers, union, sockets etc. as in Drain Pipes including testing complete all as specified and as directed.

Supply, Installation, testing and commissioning of Chilled Water Piping made out of MS ERW Pipe, 100 mm bore, Medium Grade, conforming to IS – 1239 including all fittings duly Insulated with 50mm Thick PUF Insulation of Density 36-38 KG / Cu.m and Covered with 26 Gauge Aluminium Cladding or Cement Plastering in Cement Mortar 1:6 complete all as specified and as directed.

Supply, Installation, testing and commissioning of Chilled Water Piping made out of MS ERW Pipe, 80 mm bore, Medium Grade, conforming to IS – 1239 including all fittings duly Insulated with 50mm Thick PUF Insulation of Density 36-38 KG / Cu.m and Covered with 26 Gauge Aluminium Cladding or Cement Plastering in Cement Mortar 1:6 complete all as specified and as directed.

S & F Butterfly Valve, 80mm Bore, Class PN – 1.6, Flanged and Drilled, Conforming to IS - 13095, Cast Iron Body, SGI [Nylon Coating] Disc, SS AISI 304 Disc Seal, CS Clamping Ring, SS AISI 410 Shaft with Hand Lever operated for manual operation including all Joints with Rubber Gasket and Jointing Materials, Bolts, Nuts, Washer duly Insulated with 50mm Thick Elastomeric Thermal Insulation complete all as specified and as directed.

S & F Cast Iron Non Return Valve [Swing Check type Multidoor Reflux Valve] with bypass arrangement with suitable flanges, suitable for 80 mm bore pipes confirming to IS – 5312, Class PN –1.6, including necessary nuts, bolts, washers, rubber gasket etc. for jointing, suitable to handle clear water having turbidity up to 5000 PPM duly Insulated with 50mm Thick Elastomeric Thermal Insulation complete all as specified and as directed.

S & F 80mm Bore M.S. Y-Strainer Complete with Stainless Steel Bucket having 3 mm Perforation, Flanged Ends, Filtration Area of 1:4, including necessary nuts, bolts, washers, rubber gasket etc. duly Insulated with 50mm Thick Elastomeric Thermal Insulation complete all as specified and as directed.

S & F Balancing Valve, 80mm Bore, Class PN-16, 2 Way, Globe type, Balanced / High Rangeability, Flanged and Drilled, Cast Iron Body, with Pressure Test Cocks only in EN-3 Stem EN-3 Disc and EPDM Sealing Disc for Manual Operation including all Joints with Rubber Gasket and Jointing Materials, Bolts, Nuts, Washer duly Insulated with 50mm Thick Elastomeric Thermal Insulation complete all as specified and as directed. Nominal Pressure: PN16 Temperature: –10° C to +110° C Body Material: IS – 210, FG 220 CI Stem Material: ASTM A276, GR SS 410 Disc Material: Stainless Steel Disc Hand Wheel: Cast Iron Leakage Rate: No Visible Leakage Medium Type: Water Flange Standard: ISO7005-1 (GB/T 9113) Shell Test Pressure: 24 Bar Seal Test Pressure: 17 Bar

S & F 3-Way Modulating Valve with Actuators, 65mm Bore, Class PN-16 for AHU including all Joints with Jointing Materials, Bolts, Nuts, Washer complete with elastomeric thermal insulation of suitable thickness complete all as specified and as directed. Supply, Installation, testing and commissioning of Cast Iron, 3-Way Mixing Valve, 65mm Bore, Class PN-16 suitable for operation up-to 10 Bar, with Electronically Pperated Actuator for AHUs including all Joints with Jointing Materials, Bolts, Nuts, Washer complete all as specified and as directed. Note: Water flow through the valve shall be regulated by rotation of brass slipper between the main and the bypass ports. It shall be possible to manually rotate the brass slipper through 360° and interchange the main and the common ports to facilitate installation at site. All internals of the valve shall be rust-proof and the 'O' Ring shall be of Elastomeric Insulation. The Calve Actuator shall be of Electronic type with DC Motor. The Actuator's angle of rotation shall be 90°. It shall be without any limit switches and shall be overload-proof. It shall have an indicator to indicate the position and push-button to disengage the gear train for manual operation.

S & F 25mm Bore, CL 150# rated Ball Valve, Conforming to IS – 9890 and tested as per BS 6755 Part – I, having Floating type Three piece design, CS body, SS- 304 Ball, PTFE Seal / Packing / Gasket, CS Fastners and Lever and Screwed / Socket Weld end connection etc. with accessories complete all as specified and as directed.

Supply, installation, testing and commissioning of Automatic Air-Vent Valve having 19 mm End Connections, with Brass OT 58 Body and Cover, Polyacetal Lever, high density expanded polyethylene float, EPDM rubber plug, Stainless Steel Spring, polyamide capm etc. suitable for maximum operating pressure of 16 Bar and maximum operating temperature 115°C respectively, installed on all high points in the water piping system to automatically remove the trapped air complete all as specified and as directed.

Supply, installation, testing and commissioning of Temperature Gauge of 100 mm Dial size, having Temperature range of 0°C to 100°C, with Glycerin filled Bimetallic Thermometer conforming to EN 13190, having Standard Range of 0°C to 60°C and up to 400°C, IP 67 protection, Bimetal Coil Sensing Element, Accuracy Class 1 as per EN 13190, Stainless Steel Casing, Direct bottom mounted, SS-304 Case and Bayonet type Bezel, SS-316 Stem and Connection, Aluminum Dial [White background with Black marking] and Pointer [Black colour Micrometer with Zero Adjustable], with Toughened Glass Window, Neoprene filling Plug and Gasket including all accessories complete all as specified and as directed.

Supply, installation, testing and commissioning of Pressure Gauge of 100 mm dial size, having Pressure Range of 0 PSI to 200 PSI with Glycerin filled Pressure Gauge conforming to EN837-1, having standard range of 15 to 0 PSI and 16 PSI to 10000 PSI, IP 67 Protection, Accuracy Class ±1.6% of FS, Stainless Steel Casing and TIG Argon welded socket to case, direct bottom mounted, SS-304 Case and Bayonet type Bezel, SS-316 Bourdon, Socket, SS Dial [White background with Black marking] and Pointer [Black colour Micrometer with Zero Adjustable], with Polycarbonate Glass Window, Neoprene Blow Off Disc and filling plug, Silicon Gasket including all accessories complete all as specified and as directed.

Supply, Fabrication, Installation, testing and balancing of Sheet Metal Ducts as per site requirement to suit each machine mouth connection with 24 Gauge Galvanised Sheet Steel Ducting having Zinc coating of 160 Grams / Sq.m and conforming to IS – 655 including providing angle iron supports, flanges, hangers, nuts & Bolts, Gaskets etc. complete all as specified and as directed. Note: The ducts shall be fabricated in situ for perfect mouth connection to each Machine. Make: SAIL, TATA, JINDAL, LLOYD

Supply, Fabrication, Installation, testing and balancing of Sheet Metal Ducts as per site requirement to suit each machine mouth connection with 22 Gauge Galvanised Sheet Steel Ducting having Zinc coating of 160 Grams / Sq.m and conforming to IS – 655 including providing angle iron supports, flanges, hangers, nuts & Bolts, Gaskets etc. complete all as specified and as directed. Note: The ducts shall be fabricated in situ for perfect mouth connection to each Machine. Make: SAIL, TATA, JINDAL, LLOYD

Supply, Fabrication, Installation, testing and balancing of Sheet Metal Ducts as per site requirement to suit each machine mouth connection with 20 Gauge Galvanised Sheet Steel Ducting having Zinc coating of 160 Grams / Sq.m and conforming to IS – 655 including providing angle iron supports, flanges, hangers, nuts & Bolts, Gaskets etc. complete all as specified and as directed. Note: The ducts shall be fabricated in situ for perfect mouth connection to each Machine. Make: SAIL, TATA, JINDAL, LLOYD

Supply, installation, testing and commissioning of Spring Activated Fusible Link type Fire Damper complete as per site requirement, having Melting Point of 67.13°C, located in Supply Air / Return Air Ducts at all fire rated crossovers [Shafts, Walls etc.] and tested as per ULL-555 and certified by CBRI complete all as specified and as directed.

Supply, Installation, testing and balancing Acoustic Insulation for Duct with 25 mm thick, Resin Bonded Fibre Glass Wool of density 48 kg/Cu.m with RP Tissue Paper and covered with 28 Gauge Perforated Aluminium sheet with at least 20% perforation up to 5 m from Outlet of the Air Plenum including 5 Micron Filters in Air Plenum for all AHUs and fastened with sheet using cadmium plated bolts and washers with pitch not less than 300mm and including sealing the ends completely so that no insulation material is exposed and cleaning the internal surface of the duct to make it free from dirt and dust complete all as specified and as directed.

Supply, Installation, testing and balancing Thermal Insulation for Duct with Aluminium Foil Faced, 25 mm thick, Resin Bonded Fibre Glass Wool of density 32 kg/Cu.m and sealing the joints with 50mm wide adhesive based aluminium tape complete all as specified and as directed.

M & L for Under Deck Insulation for AHU Rooms & Sun exposed Salbs with 18mm thick Fire Retardant XPE Closed Cell with Metalized Polyester Film and Self Adhesive Backing with Protection Peel off Paper with 50 mm projection for overlap and butting complete all as specified and as directed.

Supply, Installation, testing and commissioning of Powder Coated Aluminium 2 Way Supply Air Grills / Diffusers with Collar Damper / Volume Control Damper complete all as specified and as directed.

Supply, Installation, testing and commissioning of Powder Coated Aluminium 2 Way Return Air Grills / Diffusers without Collar Damper / Volume Control Damper complete all as specified and as directed.

Supply, Installation, testing and commissioning of Volume Control Dampers, frame made with 1.2mm thick GI Sheet made to shape including wielding / clinching corners, Blades made up of 1.0mm thick Extruded Anodised Aluminium profile Aero Foil Blades, 75 / 100 mm blade width to suit different sizes, Self Oiling type Plastic Bushings, Stainless Steel Square Control Shaft all as required complete all as specified and as directed.

Supply, Installation, testing and commissioning of Fresh Air Damper with GI Bowl / Fittings and Mosquito Proof Netting for each AHU Room all as required complete all as specified and as directed.

Supplying, laying and testing XLPE insulated and PVC sheathed, FRLS, armoured heavy duty underground cable, ISI marked with aluminium stranded conductor 1100 Volt grade of size 3 Core, 70 Sq.mm cross section suitable for earthed system, laying in trenches / duct / fixed to poles / drawn through pipes / sleeving through pipe in duct, including suitable size Double compression copper stainless steel cable gland, crimping type cable lugs, sockets etc. complete all as specified and as directed.

Supplying, laying and testing XLPE insulated and PVC sheathed, FRLS, armoured heavy duty underground cable, ISI marked with aluminium stranded conductor 1100 Volt grade of size 4 Core, 16 Sq.mm cross section suitable for earthed system, laying in trenches / duct / fixed to poles / drawn through pipes / sleeving through pipe in duct, including suitable size Double compression copper stainless steel cable gland, crimping type cable lugs, sockets etc. complete all as specified and as directed.

Supplying, laying and testing XLPE insulated and PVC sheathed, FRLS, armoured heavy duty underground cable, ISI marked with aluminium stranded conductor 1100 Volt grade of size 4 Core, 10 Sq.mm cross section suitable for earthed system, laying in trenches / duct / fixed to poles / drawn through pipes / sleeving through pipe in duct, including suitable size Double compression copper stainless steel cable gland, crimping type cable lugs, sockets etc. complete all as specified and as directed.

M & L for Earthing complete with Copper Earth Plate Electrode 600 X 600 X 3.15 mm thick burried directly in ground [earth pit not less than 2.25 m deep below ground level] with top edge of Plate not less than 1.50 m below normal ground level connected to Copper Strip of size 25 X 5mm [Earth Lead] and GI pipe 40 mm, Medium Grade for earthing lead protection to the extent of maximum 7.5m, Earth Plate Electrode surrounded by 150mm thick packed layers of Charcoal and Common Salt filled in alternate layers, connected to the Plate by means of GI Bolts & Nuts complete all as per Electrical Plate No. 3 of SSR Part – I, connected to panel / DB including testing on completion including main earthing, Charcoal, Common Salt, PCC [1:2:4, Type B1] Pit with RCC 1:2:4, Type B1 Cover, 50 mm thick with 6 Nos, 8 mm dia TMT bars in both ways, MS frame made with 40 X 40 X 6 mm Angle Iron, MS Funnel with 20 mm bore, medium grade GI Watering pipe, wire mesh, earth work excavation, return filling, removal of surplus soil etc. and disconnecting and taking down existing Earthing of any description complete all as specified and as directed.

S & F Earth continuity Conductor or main earthing lead made of Copper Strip of size 25 X 5mm, drawn through and including GI pipe 40 mm bore, Medium Grade, fixed to wall on batten or recess or chases or burried in ground or fixed to poles or any other indicated situation including drawing through GI Pipe for earthing etc. complete all as specified and as directed.

S & F Earth continuity Conductor or main earthing lead made of Copper Strip of size 50 X 5mm, fixed to wall on batten or recess or chases or burried in ground or fixed to poles or any other indicated situation including drawing through GI Pipe for earthing etc. complete all as specified and as directed.

S & F Earth continuity Conductor or main earthing lead made of GI Strip of size 25 X 5mm, fixed to wall on batten or recess or chases or burried in ground or fixed to poles or any other indicated situation including drawing through GI Pipe for earthing etc. complete all as specified and as directed.

S & F Earth continuity Conductor or main earthing lead made of GI Wire of 8 SWG, fixed to wall on batten or recess or chases or burried in ground or fixed to poles or any other indicated situation including drawing through GI Pipe for earthing etc. complete all as specified and as directed.

S & F GI Perforated Cable Tray of Size 100mm wide, 50mm Deep, made with 2mm thick Sheet, with Perforation not more than 17.5%, in convenient sections, joined with connectors including all Tees, Right Angle Bends, Suspenders, Bolts, Nuts, Washers etc. complete all as specified and as directed.

S & F GI Perforated Cable Tray of Size 150mm wide, 50mm Deep, made with 2mm thick Sheet, with Perforation not more than 17.5%, in convenient sections, joined with connectors including all Tees, Right Angle Bends, Suspenders, Bolts, Nuts, Washers etc. complete all as specified and as directed.

S & F GI Perforated Cable Tray of Size 300mm wide, 50mm Deep, made with 2mm thick Sheet, with Perforation not more than 17.5%, in convenient sections, joined with connectors including all Tees, Right Angle Bends, Suspenders, Bolts, Nuts, Washers etc. complete all as specified and as directed.

S & F Mild Steel work conforming to Fe - 290, Grade E-165 as in Framed Brackets of Angles or Tees with web and flanges cut to shape, drilled and counter shank for screw including bending and welding angles as necessary, gusset plates riveting etc, not exceeding 10 Kg each bracket complete all as specified and as directed.

M/S N.K BUILDERS

HVAC Engineering Co

REAL ENGINEERING WORKS

Shree Ayyappa Engineering