Construction of new Apron with Link Taxiways at Port Balir Airport-Electrical Works

Amount

Supply of Medium intensity elevated type omni directional LED Type Taxiway Edge light fitting with suitable wattage LED (maximum 7.5 W) with all accessories including blue lens, Breakable Coupling, central column assembly, 2 pin secondary Lead, Rubber Gaskets, Base Plates with 6 nos M 10 stainless steel bolts, spring washer and other accessories etc confirming to ICAO specification and technical specification etc complete as required.

Supply of medium intensity LED type omni directional 8'' dia, Inset LED taxiway edge light fitting with its projection not exceeding 10 mm, complete with its base, receptacle & plug for connection to isolating transformer alongwith all other accessories etc confirming to ICAO requirement and as per the specifications complete as required.

Supply & Installation of Cast iron round type, metal container of outside dia 330mm and height as below, for placing the isolating transformer and/or installation of fitting thereon, conforming to particular specifications. ( Having double sided holes suitable for 40 mm GI pipe and 15mm GI pipe at bottom inaddtion to a hole of dia suitable for 25 mm GI pipe at 125 mm from top as required) a) Having outside diameter 330mm height 450mm

Supply & Installation of Cast iron round type, metal container of outside dia 330mm and height as below, including making necessary core cutting in the Taxiway shouldr area and filling with suitable compound/cement concrete for placing the isolating transformer and/or installation of fitting thereon, conforming to particular specifications. (Having hole of dia suitable for 25 mm GI pipe at 125 mm from top as required) a) Having outside diameter 330mm height 150mm

Supply of following rating, 5KV grade, 50 Hz isolating transformer series type encapsulated in polyester resin finally moulded in neoprene type rubber with primary & secondary connections and conforming to the enclosed particular specifications. a) 15 W 6.6/6.6A

Supply of 2x4 sq.mm copper flexible secondary lead of following length made out of multistranded, annealed, PVC sheathed, unshielded, EPR insulated, anti-termite& antirodent cable of 5 kv grade with moulded plug and receptacle as required as per particular specifications. a)15 M

Supply of 6 sq. mm 5 KV grade single core stranded copper conductor, unarmoured, PVC insulated and PVC sheathed underground airport lighting cable generally confirming to IS 1554- Part II, 1981 with upto date amendments. (Outer sheath colour- As approved by Engineer-in-charge)

Laying of one number PVC insulated and PVC sheathed XLPE power cable of 5 kV grade of following size in the existing Pipe / masonry open duct etc. as required. Upto 35 sq. mm

Supply and fixing of 6 mm thick MS/CI powder coated base plate along with necessary gasket to cover the CI transformer bousing box of 330 mm out side dia having suitable holes to fasten the cover.

Supply of M 10 size stainless steel bolt of 30mm length with spring and plate washers suitable for the base plate of Runway / Taxiway and Approach light fixtures as required.

Supply of 5 KV grade plug and receptacle of type -I class "B" connector and Making field connections by crimping the plug and receptacle with the existing PVC insulated and PVC sheathed copper conductor cable including filling the gap with water sealant material, applying PVC HT insulation tape etc complete as required for the following size of cable. a) single core 6 sq.mm.

Kerf cutting with machine in bituminous/cement concrete paved area of Taxiway shoulder for cables/pipes of bore not exceeding 40mm upto a depth of 0.30 meter including filling back/sealing the cutting using following material/compound as required but excluding pipe laying (pipe laying included in other item ). a) Filling back/sealing with bitumen/cement concrete

Supply and laying 40 mm 'B' class G.I. pipe in soil including cutting of bituminous road/shoulder up to an average depth of 150mm and required width, excavation of soil up to 750mm (approx.) from pavement level, refilling the trench with excavated soil in bottom and filling pavement cutting with cement concrete of 1:2:4 (1cement:2sand: 4graded stone 20mm aggregate), finishing the surface etc. as required.

Supply and Laying 'B' class GI pipe of following dia in kerf area including proividing necessary GI fittings, etc as required. a) 20 mm nominal bore

Installation, testing & commissioning of Apron/Taxiway Edge Elevated light fitting on the existing transformer housing box including installation of isolating transformer, lens, filters, lamps and other accessories, alignment levelling, making transformer connections, earth connections etc. crimping/ jointing of plug & receptacles on incoming and outgoing cables and applying HT insulation tape and PVC insulation tape, laying of secondary leads in GI/HDPE/DWC pipe if required & making connections i/c supply of all materials excluding fixture, secondary lead, plug & receptacles & isolating transformer etc. as required.

Installation, testing and commissioning of inset type taxiway edge light fitting by making suitable hole with help of core cutting machine in the bitumen/concrete/pavement area of apron/runway and fixing the fitting using quick setting sealant compound such as plasticised sulphur cement/dobefill resin compound, making transformer connections, earth connections etc. crimping/ jointing of plug & receptacles on incoming and outgoing cables and applying HT insulation tape and PVC insulation tape, laying of secondary leads in GI pipe if required & making connections i/c supply of all materials excluding fixture, secondary lead, plug & receptacles & isolating transformer etc. as required.

Earthing with G.I. earth pipe 4.5 mtr long, 40 mm dia including accessories, and providing masonry enclosure with cover plate having locking arrangement and watering pipe with charcoal or coke and salt as required.

Providing and laying earth connections from earth electrode with 6 SWG GI wire in 15 mm.dia GI pipe from earth electrode ( including supply of 15mm medium GI pipe) as required.

Numbering of taxiway light fixtures with suitable paint/using stencil as per direction of Engineering In Charge

Dismantling of existing CI box from the concrete/runway bituminous area with out damage and filling the same with concrete so as to make the area flushed with the surrounding area complete as required and as per instruction of Engineer-in-Charge.

SITC of illuminated guidance signage of various sizes (as per ICAO standard) made of anodized 2-mm (nominal) thick extruded aluminium profile frame with suitable stiffening supports (if required for structral regidity) with 1.2-mm thick aluminium back cover sheet and 4-mm thick UV, abrasion, high temparature resistant poly carbonate with non-specular surface and suitable back ground coloured venyl.The letters and symbols made out from 3M film shall be internally pasted/screen printed with required colouring for mandatory /informatory guidance sign, suitable arrangement shall be made to function on both main & standby runway/taxiway (if required) series circuits fed through Constant Current Regulator by providing suitable electronic converter with internal control circuits etc. complete as required. The signage shall be provided as per latest technology & ICAO standards . The manufacturig standard of reputed manufacturer's may be submitted prior to fabrication for approval from E-I-C. Suitable arrangement shall be made for water tightness and locking arrangement, sign boards shall be uniformly internally illuminated with required number of LEDs, to achieve required illumination level as per ICAO standards/specifications on operation on input source of 2.8 Amps. to 6.6 Amps. constant current supply. Installation of illuminated taxi guidance sign boards of various sizes by providing 1:2:4 cement concrete foundation of suitable size (min. 300mm x 300mm x 400mm each) for the mounting legs including frangible mounting, anchor bolts, nuts, washers, frame, making field connection with essna connector & sealing with rubber/PVC tape, connecting isolation transformer etc. complete as required as per the AAI tender specifications including supply of necessary capacity of Isolation Transformers. (The Signage area shall be paved with Suitable cement concrete of minimum thickness of 100mm all around 1 Mtr to avoid vegetation) No extra cost will be made against Isolation Transformers & Concrete pavement.

Constructing masonry Chamber 120x120x100 cm inside, in brick work in cement mortar 1:4 (1 cement : 4 coarse sand) and RCC top slab 1:2:4 mix (1 cement : 2 coarse sand : 4 graded stone aggregate 20 mm nominal size) , i/c necessary excavation, foundation concrete 1:5:10 (1 cement : 5 fine sand : 10 graded stone aggregate 40 mm nominal size) and inside plastering with cement mortar 1:3 (1 cement : 3 coarse sand) 12 mm thick, finished with a floating coat of neat cement complete as per standard design with common burnt clay F.P.S.(non modular) bricks / hollow block bricks as applicable.

Supply and fixing of thermoplastic poly carbonate junction box of IP 65 rating and suitable size having provision four two incoming and eight outgoings with minimum space between cables when connected including locking arrangement etc. as required. (Equivalent to Hensel make MI 0801). Fixing of Junction box shall be done using GI pipes and breakable coupling as per approved drawing after excavating the soil up to a depth of 1m, preparation of foundation using 1:2:4 cement concrete and concreting the surroundings for 1 sqmtr complete as per direction of EIC.

Providing and laying in position cement concrete of 1:2:4 (1 cement, 2 coarse sand, 4 graded stone aggregate) of 1M X 1M with a thickness of 50mm around transformer housing box including surface dressing, leveling etc and finishing the surface with mortar as required.

SITC of indoor type microprocessor based, air cooled constant current regulator of Thyristor control electronic type suitable for use on 240/415 VAC; 50/60 Hz, input AC supply with below mentioned output power at 6.6 amps with 5 steps variation of current output suitable for local and remote control operation with 24/48 VDC control supply complete with output current indicated on multifunction digital display, over current, over voltage, earth fault protection and earth leakage meter, positive back indication equipments relay contactor etc. as required as per specification of following rating: 7.5 KW MPCCR at 6.6 Amp, supply voltage 240 VAC tapping at 4 KW.

Supply of 4 core 16 sq.mm, 1.1 KV grade aluminium conductor XLPE insulated and PVC sheathed armoured power cable as per IS:7098:1988(part 1)with up to date amendments

Laying of one number PVC insulated and PVC sheathed XLPE power cable of 1.1 kV grade of following size in the existing masonry open duct as required. Upto 35 sq. mm

Supplying and making end termination with brass compression gland and aluminium lugs for following size of PVC insulated and PVC sheathed /XLPE aluminium conductor cable of 1.1 KV grade of the following size as required - 4 core 16 sq.mm

Techno Electricals