1.RM of GLF at Chennai Airport 2.RM of Electrical Installations in the Operational Area at Chennai Airport. SH Annual Rate Contract for Maintenance of Electrical Installations in the Operational Area for 02 Years.

Amount

SH-I: R&M of GLF at Chennai Airport. (A): Works

Supply and laying of 50 mm dia (OD) HDPE pipe of PN 6, PE 80 grade ISI marked conforming to IS:4984 along with all its necessary accessories like couplers etc., in runway/taxiway/apron shoulder for connecting transformer housing boxes by groove cutting with groove cutting machine on bitumen / concrete surface to a suitable depth, chipping the slot with hammering machine i/c jointing of pipe & filling the gaps with bitumen /cement concrete and making good the surface with original finish etc., complete as required and as per the instruction of Engineer-in-charge.

Supply and laying of 63 mm dia (OD) HDPE pipe of PN 6, PE 80 grade ISI marked conforming to IS:4984 along with all its necessary accessories like couplers etc., in runway/taxiway/apron shoulder for connecting transformer housing boxes by groove cutting with groove cutting machine on bitumen / concrete surface to a suitable depth, chipping the slot with hammering machine i/c jointing of pipe & filling the gaps with bitumen /cement concrete and making good the surface with original finish etc., complete as required and as per the instruction of Engineer-in-charge.

Supply and laying of 50 mm dia (OD) HDPE pipe of PN 6, PE 80 grade ISI marked conforming to IS:4984 along with all its necessary accessories like couplers etc., directly in ground at a depth 0.75 Mtr including excavation and refilling the trench but excluding sand cushioning and protective covering etc., as required.

Supply and laying of 63 mm dia (OD) PN 6, PE 80 of HDPE pipe ISI marked conforming to IS:4984 along with all its necessary accessories like couplers etc., directly in ground at a depth 0.75 Mtr depth including excavation and refilling the trench but excluding sand cushioning and protective covering etc., as required.

Supply and Laying of 50mm 'B' Class GI Pipe in shoulder/runway/taxiway/apron i/c groove machine cutting for connecting Transformer housing boxes/between transformer housing boxes on bitumen / concrete surface of suitable size, chipping the slot with hammering machine, jointing of pipes by couplers (including supply of coupler) and filling the gaps with cold bituminuous road bond bitumen(Hincol make or equivalent) i/c applying rapid emulsion RS1 / cement concrete and making good the surface matching with original finish etc., as required and as per the instruction of Engineer-in-charge.

Supply and Laying of 50mm 'B' Class GI Pipe in shoulder/runway/taxiway/apron i/c groove machine cutting for connecting Transformer housing boxes/between transformer housing boxes on bitumen / concrete surface of suitable size, chipping the slot with hammering machine, jointing of pipes by couplers (including supply of coupler) and re-filling with cement concrete mixture of ratio 1:2:4 and making good the surface matching with original finish etc., as required and as per the instruction of Engineer-in-charge.

Supply and Laying of 50mm 'B' Class GI Pipe in directly in ground at a depth of 0.75 Mtr including excavation and refilling the trench but excluding sand cushioning and protective covering etc., as required.

Supply and Laying of 80 mm dia size B class GI pipe for road crossing at a depth of 150 mm i/c cutting the bituminous / concrete surface, re-filling with cement concrete mixture of ratio 1:2:4 and making good the surface matching with original finish etc., as required and as per the instruction of Engineer-in-charge.

Supply and Laying of 80 mm dia size C class GI pipe for taxiway crossing at a depth of 150 mm i/c cutting the bituminous / concrete surface, re-filling with cement concrete mixture of ratio 1:2:4 and making good the surface matching with original finish etc., as required and as per the instruction of Engineer-in-charge.

Supply and Laying of 90mm dia PE 100 PN 10 HDPE Pipes by single horizontal drilling of suitable dia in the operational area with depth range at 2.5 to 3 mtr including opening of manholes / pits on both sides, reaming, drilling, jointing of pipes, providing all required machines (HDD machine, mud mixer, earth mover etc.) and specialised manpower, closing of manholes / pits after laying the pipes etc as required.

Supplying and laying of 25mm size ISI marked 'B' class GI pipe and accessories for taking secondary lead from inset fittings to the transformer housing box installed outside the runway shoulder by groove cutting with Groove Cutting machine on the concrete/bitumen runway surface at a depth upto 40 mm to match the cable entry hole of inset fitting shallow base and width to accommodate the pipe including smooth bending of pipe as per requirement, chipping the slot, alignment and fixing the pipe including connecting to inset light shallow box using coupling/connectors etc., as per requirement, closing the slot with cold bituminous mix road bond (Hincol make or equivalent) (i/c supply) i/c applying rapid emulsion RS1 to match the existing runway / taxiway surface etc., complete as required.

Fabrication & Supply of MS Transformer Housing Box of size 330x330x300 mm, made out of 8mm thick MS sheet on four sides and bottom, 10mm thick MS sheet for top cover having clear hole of 216 mm dia with 6 Nos. M10 size threaded holes on the top for fixing of fixture base plate; 01 No. 25 mm dia drain hole in bottom and entry hole on two/three/four sides suitable to receive 40/50/63mm dia of GI/HDPE pipe entry for incoming and outgoing cables, two Nos. cadmium plated earthing bolts with nuts and washers etc. including painting with one coat of red oxide paint and two coats of black enamel paint finish etc. as required.

Fabrication & Supply of MS Rectangular Transformer Housing Box of size 750x400x330 mm, made out of 8mm thick MS sheet on four sides and bottom, 10mm thick MS sheet for top cover with 8 Nos. M-10 size threaded hole, 1 No. 25mm dia drain hole at the bottom and suitable holes to enable entry of 40/50/63/90mm dia GI/HDPE pipe and secondary leads, (2 Nos. partition plates of 200mm high inside the box made of 8mm thick MS Sheet) with rubber gaskets for top cover, two Nos. cadmium plated earthing bolts with nuts etc. including painting with one coat of red oxide paint and two coats of black enamel paint finish etc. as required.

Installation of MS Transformer housing box of size 330mm X 330 mm X 300 mm in runway / taxiway shoulder of concrete/bitumen surface including dismantling of concrete/bitumen/soil surface to the required size, providing 75mm thick cement concrete of ratio 1:2:4 on all around the transformer housing box with required slope on the top to match with the original bitumen / concrete surface, painting of MS box etc., as required.

Installation of 'T' shaped double pocketed MS Transformer housing box of size 650mm x 330mm x 400mm in runway / taxiway shoulder of concrete/bitumen surface including dismantling of concrete/bitumen/soil surface to the required size, providing 75mm thick cement concrete of ratio 1:2:4 on all around the transformer housing box with required slope on the top to match with the bitumen / concrete surface, painting of MS box etc., as required.

Installation of MS Transformer housing box of size upto 330mm X 330 mm X 300 mm in soil including excavation of earth to the required size providing 100mm thick PCC base and 75mm thick cement concrete of ratio 1:2:4 on all around the transformer housing box with required slope on the top, painting of MS box etc., as required.

Installation of 'T' shaped double pocketed MS Transformer housing box of size 650mm x 330mm x 400mm in soil including excavation of earth to the required size providing 100mm thick PCC base and 75mm thick cement concrete of ratio 1:2:4 on all around the transformer housing box with required slope on the top, painting of MS box etc., as required.

Fabrication & supply of 330mmx330mm size MS collar of following height as per site requirement (for increasing the height of the existing isolating transformer housing box) made out of 8mm thick MS sheet on four sides, 10mm thick MS sheet on top & bottom, with a provision of 216mm dia round opening on top & bottom with 06 Nos holes on edges of top & bottom plates, suitable for holding the taxiway/runway edge light fittings on top and bottom bolted to the existing box including painting the collar with one coat of primer & two coats of black enamel paint etc. complete as required.

50 mm Height

75mm Height

100mm Height

125mm Height

150mm Height

Installation of MS collar (Supplied against item No. 18) by providing & fixing of 6 Nos. M-10 SS bolts including minor civil works as per site requirement, making 75mm thick cement concrete all around the box and making suitable slope by providing 1:2:4 cement concrete etc. complete as required.

50 mm Height

75mm Height

100mm Height

125mm Height

150mm Height

Installation of Rectangular Transformer Housing box of size 750mm x 400mm x 330 mm of thickness 10 mm made of MS Sheet Steel in runway/ taxiway shoulder including dismantling of concrete/bitumen, providing 100mm thick PCC base and 75mm thick cement concrete of ratio 1:2:4 on all around the transformer housing box with required slope on the top to match with the existing surface, painting of MS box etc., as required.

Laying of 2C x 4 sq. mm Secondary leads of 1.1KV grade in existing GI/HDPE pipe as required.

Installation, Testing and commissioning of Elevated type Runway Edge/ End / Threshold / Guard Lights / Taxiway lights fittings (Halogen/LED) on the existing transformer housing boxes including installation of isolating transformer, crimping / joining of connector kits, covering with HT insulation tape over which PVC tape, fixing of gaskets, nuts, bolts and other accessories, alignment, levelling, earth connection etc., complete as required. (Fitting, Isolation Transformer and connector kits will be supplied by department)

Installation of Inset light fittings in the concrete/bitumen surface by core cutting with suitable core cutting machine tool for the required size for fixing the shallow box, alignment of the box to match with the runway surface, fixing it using Dobefil compound with hardener, fixing of top assembly on the shallow box, connecting the plug and receptacles of inset fitting with isolation transformer, making all electrical connections, making good the surface to the original finish, testing and commissioning of the whole inset fittings etc., complete as required. (Fitting, Isolation Transformer and connector kits will be supplied by department)

Supply of Internally Illuminated LED based Mandatory / Information Guidance Sign Boards of various sizes and depth not less than 150mm made out of 4mm thick glare free polycarbonate sheet at front facia having the required details (letters and symbols) screen printed on self adhesive film of 3M make/equivalent and pasted inside of the polycarbonate sheet and body made of 2mm thick anodised aluminium profile reinforced by 50mmX50mm Aluminium/Aluminium Alloy Structure on other five sides with sufficient No. of 50mm dia aluminium legs of 5.5mm thick fixed with Al brackets of 5mm thick and frangible couplings, uniformly internally illuminated with adequate No. of LED Modules of LED of burning hours not less than 50,000 spacing not more than 100mm with suitable rated weather proof Power Converter (IP 67) to achieve required illumination level, suitable for operation on airfield series circuit input source of 2.8A-6.6A to give constant brightness for all current variation without flickering, with all other accessories such as MS base plate of 16 mm thick with 16mm dia 250mm length foundation bolts and nuts of SS Materials etc., complete as required and conforming to ICAO/FAA Requirements etc., as required.

Supply and fixing of 4mm thick glare free polycarbonate sheet at front facia, the letters & symbols made out of 3M film, made by computerized cutting and pasting on the polycarbonate sheet, pasted from inside/outside with required colouring to make mandatory /informatory guidance signage on existing sign boards installed in operational area as per ICAO Annex - 14 Volume 1 and as approved by Engineer-In-Charge complete as required.

Installation, Testing and Commissioning of Airport Operational Mandatory / Information Guidance Signboards having 2 Legs of various sizes by providing suitable strength Cement Concrete Cuboid (1:2:4) of minimum size 300x300x450mm, fixing foundation bolts of minimum length 250mm & nuts with spring washer i/c excavation, supplying and laying of 40mm OD HDPE (PN6 ; PE80) pipe upto 1m for cable entry, fixing breakable couplings, providing cement concrete of ratio 1:2:4 all around the guidance sign board upto 1 mtr on the four sides of the guidance sign board for a depth of 150 mm, connection, earthing etc., complete as required.

Installation, Testing and Commissioning of Airport Operational Mandatory / Information Guidance Signboards having 3 Legs of various sizes by providing suitable strength Cement Concrete Cuboid (1:2:4) of minimum size 300x300x450mm, fixing foundation bolts of minimum length 250mm & nuts with spring washer i/c excavation, supplying and laying of 40mm OD HDPE (PN6 ; PE80) pipe upto 1m for cable entry, fixing breakable couplings, providing cement concrete of ratio 1:2:4 all around the guidance sign board upto 1 mtr on the four sides of the guidance sign board for a depth of 150 mm, connection, earthing etc., complete as required.

Installation, Testing and Commissioning of Airport Operational Mandatory / Information Guidance Signboards having 4 Legs of various sizes by providing suitable strength Cement Concrete Cuboid (1:2:4) of minimum size 300x300x450mm, fixing foundation bolts of minimum length 250mm & nuts with spring washer i/c excavation, supplying and laying of 40mm OD HDPE (PN6 ; PE80) pipe upto 1m for cable entry, fixing breakable couplings, providing cement concrete of ratio 1:2:4 all around the guidance sign board upto 1 mtr on the four sides of the guidance sign board for a depth of 150 mm, connection, earthing etc., complete as required.

SITC of outdoor type sloped top feeder pillar box made out of MS sheet of size 18"x18"x9" of 3mm thick (painting the box with 2 coats of polyurethane paint of aviation yellow colour along with initial coat of zinc chromate primer etc.,) suitable for 6.6KV grade AFL Cable End terminations, with hinged door, locking arrangement, cable entry holes, mounted on 1 No. 2" dia. GI pipe of 150 mm length with breakable coupling on 10mm thick MS base plate, fixing the feeder pillar box by providing 150mm PCC Cement Concrete (1:2:4) and Pre cast cement contrete cube of minimum size 450 x 450x 600 mm with foundation bolts of minimum length 300mm and 16mm dia & nuts with spring washer of SS 304 grade of suitable size i/c providing breakable couplings and providing cement concrete of ratio 1:2:4 all around the feeder pillar box board upto 0.5 mtr on the four sides of the feeder box for a depth of 150 mm etc. as approved by Engineer-In-Charge complete as required.

Removal of old isolation transformer housing boxes from different locations in runway/taxiway/edge area after dismantling from concrete foundation, refilling of excavated concrete runway portion with cement concrete of 1:2:4 and quick setting sealant to match with runway surface, making good the runway/taxiway to the original shape, removal of all the debris from site, transportation of fittings to AAI store, stacking etc., as per the direction of Engineer in Charge complete as required.

Dismantling of HIRL/MIRL fixtures on the existing runway/taxiway circuit etc., with all its accessories and transportation of fittings to AAI store, stacking etc., as per the direction of Engineer in Charge complete as required.

Dismantling of existing AFL cables from existing pipes and transportation of dismantled cables from operational area to AAI store, stacking etc., as per the direction of Engineer in Charge complete as required.

Retrieval of existing 40/50 mm dia B class G.I. pipe from the concrete/bituminous surface i/c cutting and making good the runway/taxiway to the original shape and strength etc., including transportation to AAI store, stacking etc., as per the direction of Engineer in Charge complete as required.

Fabrication and Supply of 10 mm thick MS dummy plate of 260 mm dia suitable for isolation transformer box with 06 Nos. of threaded holes including supply of 6 Nos. of M-10 SS Bolts with washers etc., complete as required.

Cleaning of cable crossing manhole chamber of size not more than 2m x 2m x 3m and disposal of the debris etc., as required and as per the direction of the Engineer-in-Charge.

Removing of existing 1 No. broken bolt from the transformer housing boxes with drilling machine, making new holes by drilling, tapping etc. to enable fixing of M10 bolts as required

Supply and fixing of 1 No. M10 SS bolt, washer etc., on the existing transformer housing box as required with necessary T&P.

Supply and making straight through cable joint with 11KV grade heat shrinkable cable jointing kit including ferrules and other jointing materials for PVC / XLPE insulated PVC sheathed armoured Aluminium conductor AFL cable of 5 KV grade and of size 2Cx25 Sq.mm etc., as required.

Providing cement concrete 1:2:4 (1 cement : 2 coarse sand : 4 graded stone aggregate 20 mm nominal size) to make platform including excavation to required depth and plastering around the installed sign boards/transformer housing boxes/junction boxes etc. to required depth, as per the direction of Engineer-in-charge as required.

Providing cement plaster 1:3 (1 cement : 3 fine sand ) for smooth finishing around the installed sign boards/transformer housing boxes/junction boxes etc., as per the direction of Engineer-in-charge as required.

Painting of Elevated type Runway/Taxiway/Threshold/End/Approach light fittings etc., with two coats with Aviation Yellow Polyurethane paint including cleaning/scrapping/providing primer etc., as per the direction of Engineer-in-charge as required.

Painting with two coats of Polyurethane paint (approved colour) over a coat of zinc phosphate primer to supports structure, junction boxes, feeder pillar, MS cover plates and exposed surface of MS boxes, Earth Pit cover plate etc., including cleaning/scrapping etc., as per the direction of Engineer-in-charge as required.

Writing of 2 inch height letters/numbers for the GLF fitting on surface/MS cover plates and on the body of LT panels, feeder pillars, CCR's by Polyurethane paint of White/Red/Black/Blue colour etc., as per the direction of Engineer-in-charge as required.

Hire charges for deploying excavator (JCB) i/c operator and helper for tracing the cable faults, excavation & refilling of cable trench after work as required.

Providing one welder and one Helper along with Electric welding / gas cutting machine and welding rods / Oxygen Acetylene gas for repairing of MS barricades and repair / refixing of doors of Electrical panels / Feeder pillars located in the operational area and other welding works wherever required.

Providing 1 No. Electrician with necessary tools for emergency / unanticipated breakdown / maintenance works as and when required.

Providing 1 No. Helper for emergency / unanticipated breakdown / maintenance works as and when required.

Calibration of following Electrical Instruments and including submission of calibration certificate from NABL accredited Laboratory complete as per the direction of Engineer-in-charge as required.

Insulation Resistance Tester

Digital Earth Resistance Tester

Clinometer for PAPI

Tong Tester

Lux meter

Coping of existing single pocket isolation transformer box of size 330 mm x 330 mm (above 25 mm ground level) with cement mortar of 1:3 to match the existing bitumen / concrete surface as per the direction of Engineer-In-Charge.

Coping of existing double pocket isolation transformer box of size 650 mm x 330 mm (above 25 mm ground level) with cement mortar of 1:3 to match the existing bitumen / concrete surface as per the direction of Engineer-In-Charge.

Supply and Fixing of pre-cast RCC manhole chamber of size 1000 mm X 1000 mm X 600 mm deep with wall thickness of 100 mm along with suitable RCC slab cover having 100 mm thickness with lifting hooks making as per site requirements including providing PCC base of grade 1:3:6 of 100 mm thickness at the bottom, required excavation, refilling, ramming etc., complete as required.

Fabrication and Supply of 10 mm thick MS dummy plate of size 150mm x 300mm suitable for double pocket isolation transformer housing box with 10 Nos. of threaded holes including supply of 10 Nos. of M-10 SS Bolts with washers etc., complete as required.

Supply and Fixing of 12 mm thick SMC chequered plates including provision of 50 x 50 x 5mm thick MS angle in all side and diagonal of SMC plate for strengthening by Aluminium revitting and MS lifting hook etc., complete as required.

Carrying out In-field test for measurement of intensity, beam spread and orientation (4 Cs ie. Configuration, Colour, Candelas and Coverage) of the following Airfield Ground Lights (Both 07/25 and 12/30 Runways) as per ICAO/CAR requirements by using vehicle mounted mobile testing equipment, including submission of test reports etc. complete as required. a. Elevated type Runway Edge/ Threshold/ End / Stopway lights - 552 Nos. b. Inset type Runway Edge /Centre line / TDZ / RETIL / Approach lights - 537 Nos. c. Elevated type Approach Lights - 168 Nos. d. PAPI Units for runway 07/25 & 12/30 - 4 Set

Carrying out one time in-field alignment setting of Elevated Light Fittings of CAT-I & Simple Approach Lighting Systems (Both 07/25 and 12/30 Runways) using angle setting tools by deputing experienced manpower, including submission of test reports, conducting training to GLF maintenance team etc. complete as required.

Carrying out illumination check of Mandatory/ Information signage boards of different sizes in operational area complete as required.

SH-II: R&M of GLF at Chennai Airport. (B): Supply of following materials as and when required basis

Supply of Fabric windsock of natural (white) and black with inner lining of length 168 inch in the shape of a truncated cone as per the specifications.

Supply of spare sealed / weather proof power converter with output voltage of 24V DC capable of internally illuminating the existing LED Guidance signboards with uniform brightness when operating from 2.8A to 6.6A in Taxiway Circuits. Make NASU

Supply of Connector kit suitable for use in the 5KV grade 1 x 6 mm2 size AFL copper conductor cable.

Supply of Connector kit suitable for use in the 5KV grade 1 x 16 mm2 size AFL copper conductor cable.

Supply of Connector kit suitable for use in the 5KV grade 1 x 25 mm2 size AFL Aluminium conductor cable.

Supply of 9W LED E27 Screw type, Cool day light Bulb, Philips or equivalent reputed make.

Supply of 10A, 2 Pole Porcelain Connector (As per sample)

Supply of Trip Indicator HRC fuse, Eaton/Bussman make, Trip Indicator fuse Model TI 300-BTI

Supply of LED module of 3 Watt, 24 V DC, IP 67, CCT 6500 K suitable for Airfield Edge lit signage boards in Operational Area.

Supply of secondary lead made out of 2C x 4 sq.mm multi stranded annealed tinned copper conductor EPR insulated, PCP sheathed, unshielded type, 1.1KV grade conforming to IS- 9968(Part-I) 1988 as amended upto date etc., complete as required

Supply of 200W 6.6A Bi-pin Halogen lamps for Runway Edge light fixture. (Cat No. 64386 Osram or Equivalent) as required.

Supply of 200W 6.6A Halogen lamps with PK-30d base and male connector. (Cat No. 64382 Osram or Equivalent) as required.

Supply of 105W 6.6A Prefocus dichroic coated reflector lamps suitable for inset type light fixtures (Cat No. 64339A of Osram or Equivalent) as required.

Supply of 100W 6.6A Halogen lamps with PK-30d base and male connector. (Cat No. 64342 Osram or Equivalent) as required.

Supply of 48W 6.6A Prefocus dichroic coated reflector lamps suitable for inset type Runway TDZ and Runway Centreline light fixtures (Cat No. 64337B of Osram or Equivalent) as required.

Supply of Elevated Omni directional LED type medium Intensity Obstruction Light Fittings, consisting of LED, Lens supporting Mechanism, Lens clamp Mechanism, Omni directional Red Lens, driver unit, Central Column Assembly, Breakable Coupling, two pin secondary connecting lead, with base plate etc., i/c supply of adapter box for mounting the fitting etc., with all other accessories and meeting ICAO/FAA specifications.

Supply and fixing of G.I. approach bird spike (Clamp) with double coating enamel paint for Runway approach light fittings with all other accessories complete as required.

Supply of Dobefil 60

Supply of Hardner 758

SH-III: R &M of Electrical Installations in operational area at Chennai Airport. (A) Works

Maintenance of High masts (height 10-30 metres) which includes lowering of highmast lantern carriage, checking, adjustment and replacement of all mechanical components like wire rope, trailing cable, drum, winch, power tool etc., if required (Materials will be given by the department). Checking and adjustment of electrical components like cable, luminaries etc., and replace if required and raising the lantern carriage to the top, testing and commissioning etc., as required.

Dismantling the highmast of height above 10.0m and upto 20.0 m from the foundation to replace the damaged pulley / wire rope / trailing cable and reinstallation of the high mast after repair in the same foundation using crane and other appropriate equipments complete as required.

Dismantling the highmast of height above 20.0m and upto 30.0 m from the foundation to replace the damaged pulley / wire rope / trailing cable and reinstallation of the high mast after repair in the same foundation using crane and other appropriate equipments complete as required.

Design and Construction of suitable shallow foundation with anchor plates, templates as per the OEM recommendation of high masts i/c fixing of foundation bolts supply and for high mast with M20 grade concrete for following height high masts after testing the soil bearing capacity at site and installation of highmasts on the base using suitable heavy equipments, installation of required No. of LED light fittings / components with switch gear arrangement on the lantern carriage, installation of LED aviation obstruction lights, installation of control panel, interconnecting cables, wiring, testing and commissioning etc., complete as required.

15 - 20 m height

20 - 30 m height

Dismantling of unserviceable winch gear assembly from the high mast, complete overhauling of the winch gear assembly i/c replacement of parts such as shaft, bearing, oil seals and filling up with lubricating oil etc., and refixing the winch gear assembly i/c. testing and commissioning etc., as required.

Dismantling of drive motor from the high mast, cleaning, greasing and painting of the motors, reinstallation in the high mast i/c testing and commissioning etc., as required.

Dismantling of unserviceable / burntout motor of rating upto 1.5HP motor from the high mast, complete dismantling of burntout motor stator winding and thorough cleaning of stator slots, Rewinding the stator with Class 'F' polyester coated super enameled copper wire and insulating materials i/c baking, varnishing, finishing and refixing the stator in the motor frame. Replacement of both end bearings and reinstallation in the high mast i/c testing and commissioning etc. as required. (Dismantled copper wire is to be retained by the contractor)

ITC of 2m height tubular swaged pole with base plate in cement concrete foundation of size 750 mm below ground level and 300 above ground level with base of 100 mm 1:3:6 (1 cement : 3 coarse sand : 6 graded stone aggregate 40 mm nominal size) and foundation 1:2:4 (1 cement : 2 coarse sand : 4 graded stone aggregate 20 mm nominal size) including excavation, shuttering and provision of foundation bolts and nuts, installation of LED light fixture, supply and laying of required length 3x 1.5 Sq.mm copper cable multi core cable connections etc., complete as required as per instructions of Engineer-In-Charge.

Supply and Installation of 2m x 2m MS Barricade made out of ISMB 150 channel around the high mast with 4 Nos. of ISMB 150 Channels mounting 750mm above ground level and 450mm below ground level for vertical support including excavation of soil, providing 1:2:4 (1 cement : 2 coarse sand : 4 graded stone aggregate 20 mm nominal size) cement concrete and disposal of the excavated soil etc. including welding, painting with one coat of zinc chromate and two coats of polyurethane paint of colour red and white etc. complete as required as per the instructions of Engineer-In-Charge.

Supply and Installation of 2m x 2m MS Barricade made out of ISMB 150 channel around the high mast with 4 Nos. of ISMB 150 Channels mounting 750mm above ground level and 450mm below ground level for vertical support including excavation/dismantling of concrete / bitumen surface of required dia with core cutting machine, providing 1:2:4 (1 cement : 2 coarse sand : 4 graded stone aggregate 20 mm nominal size) cement concrete and disposal of the excavated soil/concrete/bitumin etc. including welding, painting with one coat of zinc chromate and two coats of polyurethane paint of colour red and white etc. complete as required as per the instructions of Engineer-In-Charge.

Supply and installation of ISMB 150 Channel for the damaged MS Barricade including welding, painting with one coat of zinc chromate and two coats of polyurethane paint of colour red and white etc. complete as required as per the instructions of Engineer-In-Charge. (Measurement shall be done on linear measurement)

Painting of 2 mtr height perimeter pole with two coats Polyurethane paint with alternative red and white colour bands including cleaning, scrapping, providing primer etc., with numbering of the pole as per the direction of Engineer-in-charge as required.

Painting of 3 mtr height perimeter pole with two coats Polyurethane paint with alternative red and white colour bands including cleaning, scrapping, providing primer etc., with numbering of the pole as per the direction of Engineer-in-charge as required.

SH-IV: R&M of Electrical Installations in Operational Area at Chennai Airport. (B) Supply of following spares as and when required

Fabrication and Supply of 2m height tubular swaged pole with 5.4mm thick 114mm dia (heavy duty) upto 1m length with door provision for providing and fixing 1 number 5-32A 'C' Series SP MCB and 63A 4 way connector in the bottom and 4.5mm thick 88mm dia (heavy duty) for balance length suitable for mounting 1 No. 35W LED fixture, with 16mm thick base plate of dimension 250mm x 250mm, 4 Nos of 12mm dia 500mm long EN-8 foundation bolts and nuts and other accessories and painted with one coat of zinc chromate primer and two coats of polyurethane paint of approved colour complete as required.

Supply of Double drum winch suitable for 30m highmast

Supply of Stainless steel wire rope 6mm dia.

Supply of Wire clamps (U type)

Supply of Lantern Carriage resting arm (Set of 3)

Supply of Headframe pulley

Supply of Eye Bolt with Clamps

Supply of Drive chain with connecting pins

Supply of Ratchet wheel set (Torque limiter)

Supply of Gear oil SAE 140 (5 Litre Can) (IOCL/BPCL/HPCL/CASTROL make)

Supply of 16A, 5pin splash proof Insulated plug socket set

Supply of 8C 2.5 mm2 copper conductor, EPR insulated, PC tape, PCP outer sheathed Elastometric Rubber cable of 1.1KV grade for use in highmasts as trailing cable.

Supply of 1.1kW(1.5HP), 415V, 50Hz, 989 RPM ( 6 pole motor), S1 duty, IP55 with Class F Insulation Energy Efficient, TEFC, Induction motor conforming to IS 12615 for highmast drive application with all accessories.

Supply of Power contactor 32A, 3 Pole, 230V coil, MNX 32, L&T Make or equivalent

Supply of Digital timer Switch L&T make (Crono) or equivalent, 240 VAC, Base DIN 25.

Supply of 6A, Single pole, 10KA, C series MCB, Havells or equivalent make.

Supply of 10A, Double pole, 10KA, C series MCB, Havells or equivalent make.

Supply of 32A, Four Pole, 10KA, C series MCB, Havells or equivalent make.

Supply of 63A, Four Pole, 10KA, C series MCB, Havells or equivalent make.

Supply of 4C 2.5 mm2 flexible copper conductor FRLS PVC insulated PVC round sheathed, 1100 Volts conforming to IS:694 ISI of approved make (1 No. = 1 coil of 100m length)

Supply of 4C 4 mm2 flexible copper conductor FRLS PVC insulated PVC round sheathed, 1100 Volts conforming to IS:694 ISI of approved make (1 No. = 1 coil of 100m length)

Supply of following size of XLPE insulated PVC sheathed Aluminium conductor armoured power cable of 1.1 KV grade conforming to IS-7098 Part-I amended upto date etc., complete as required. 4C x 16 Sq.mm

Supply of Wall Mounting Fan of 400 mm or 16" dia

Supply of LED flood light with more than 3500 lm at the system power consumption range of 35W with pressure diecast aluminium housing body with optimal heatsink for better thermal dissipation. Rated life of burning hrs 50000hr @ lumen maintenance of 70%CCT>5700K, IP66 optical and electrical compartment & impact resistance of complex luminaries>IK07. Powerfactor>0.95 & mains current shall not be greater than 0.1A to 0.7A & Surge protection – min 5 KV alongwith driver and THD should be less than 10%. LED Driver shall be potted type suitable to operate wide voltage range from 120–270V, 50/60Hz application. LED shall be high power SMD (Not COB) with secondary lens with efficiency > 100 lm/watt & fixture efficiency > 100 lm / with nominal CRI of 70. LED make shall be Nichia / CREE / Philips (Lumiled) / Osram / Sharp / Seoul. Make : Crompton Model No.LFLN11-35-CDL/60 or equivalent.

Supply of 350W Integrated LED type flood light luminaire with pressure die cast housing and heat sink in aluminium extrusion with IP65 protection complete with all accessories. ( 350W LED Bajaj make or equivalent)

Supply of LED Aviation Obstruction light in cast aluminium housing with polycarbonate enclosure as per ICAO standards of Bajaj make Cat No. BGAV 302 LED or equivalent models of Insta Power/Crompton/Philips.

Supply of 20W, LED street light fitting with aluminium die cast housing with highpower LED's with IP65 protection. (Cat No. BRP042 of Philips or Equivalent) as required.

Supply of LED driver for 350W Bajaj make model BENP20FL

Supply of SPD for 350 W Bajaj Make Model BENP20FL

Supply of SMC Junction box of following size:

250mm x 200mm x 105mm

285mm x 200mm x 150mm

SH-V: DSR ELECTRICAL -2022

Execution of Items of CPWD Delhi Schedule Rates (DSR) E&M 2022 as and when required for attending Repair and Maintenance, Breakdowns and Upkeep of Internal and External Electrical Installations as per Direction of Engineer-In-Charge at All Locations under Chennai Airport conforming to CPWD General Specifications for Electrical Works Part-I (Internal) 2013, Part-II (External) 1994 and Part -IV (Substation) 2013 and also to relevant BIS Specifications. Note: The Bidder shall quote the Rate in INR only for the Job corresponding to the Base Rate (Rs. 10,00,000.00 as per Proposed Estimate) and Percentage (%) Above/ Below shall be calculated by AAI (Based on Quoted Rate w.r.t Base Rate) and the same % shall be calculated by AAI (Based on Quoted Rate w.r.t Base Rate) and the same % worked out will be applied on DSR Rates while executing the DSR Items and will be paid as per Payment Methodology given in Annexure -H).

vardhman Airport solutions pvt. Ltd. (BID ID -762038)