Replacement of High Masts Including Provision of Additional Masts at Main Remote Apron Bay No. 43 to 57 and Provision of New High Mast at Bay No. 25 at Chennai Airport

Amount

SITC of High Masts and asscoiated works

Design*, Supply, Installation, Testing and Commissioning of 15 Meter Height, Hot Dip Galvanised Latching Type, 20 Sided Polygonal High Mast Tower in Double equal section of minimum 5 mm bottom and minimum 4 mm top thick with minimum bottom Dia of 460 mm and top Dia of 180mm suitable for wind speed of minimum 65M/Sec with raising lowering system comprising of head frame, luminaries' carriage suitable to install 12 Nos. of 350 W LED Luminaries in assymmetrical arrangement, providing counter weights, double drum winch, 6 mm diameter SS wire rope, trailing cable of 5C X 2.5 Sq.mm, connector, integral power tool motor of rating not less than 1 HP, manual handle, junction box, lightning finial of GI Single Spike of length not exceeding 600 mm with mounting clamps and bolts, provision to install AOL, door at bottom with locking arragements, Base Plate not less than 670mm (Dia) X 32mm (Thick), Hot Dip Galvanised foundation bolts (of minimum size of M30 of 900 mm long) manufactured from special steel along with nuts, washers, anchor plate and template including providing and laying 40 mm Dia HDPE Pipe of PE 80 PN 6 for Cable Entry in Foundation extending up-to 3 Mtr, providing and laying armoured copper conductor power cable (up to a distance of 10 Mtr) of size 4x16 SQ MM between panel and mast, providing and fixing 32 A 4P MCB in base compartment, providing foundation with RCC as per OEM Design with all materials and labour (Including excavation beyond 900 mm of PQC/PCC Demolishing, refilling up-to the level below of 300 mm of existing Apron Level after foundation work), providing necessary tools and plants for erection and testing of high mast as required.

Design*, Supply, Installation, Testing and Commissioning of 17 Meter Height, Hot Dip Galvanised Latching Type, 20 Sided Polygonal High Mast Tower in Double equal section of minimum 5 mm bottom and minimum 4 mm top thick with minimum bottom Dia of 540 mm and top Dia of 180 mm suitable for wind speed of minimum 65M/Sec with raising lowering system comprising of head frame, luminaries' carriage suitable to install 12 Nos. of 350 W LED Luminaries in assymmetrical arrangement, providing counter weights, double drum winch, 6 mm diameter SS wire rope, trailing cable of 5C X 2.5 Sq.mm, connector, integral power tool motor of rating not less than 1 HP, manual handle, junction box, lightning finial of GI Single Spike of length not exceeding 600 mm with mounting clamps and bolts, provision to install AOL, door at bottom with locking arragements, Base Plate not less than 730mm (Dia) X 32mm (Thick), Hot Dip Galvanised foundation bolts (of minimum size of M30 of 900 mm long) manufactured from special steel along with nuts, washers, anchor plate and template including providing and laying 40 mm Dia HDPE Pipe of PE 80 PN 6 for Cable Entry in Foundation extending up-to 3 Mtr, providing and laying armoured copper conductor power cable (up to a distance of 10 Mtr) of size 4x16 SQ MM between panel and mast, providing and fixing 32 A 4P MCB in base compartment, providing foundation with RCC as per OEM Design with all materials and labour (Including excavation beyond 900 mm of PQC/PCC Demolishing, refilling up-to the level below of 300 mm of existing Apron Level after foundation work), providing necessary tools and plants for erection and testing of high mast as required.

Design*, Supply, Installation, Testing and Commissioning of 25 Meter Height, Hot Dip Galvanised Latching Type, 20 Sided Polygonal High Mast Tower in Three Section with minimum thickness of 6 mm bottom, 5 mm middle and 4 mm top with minimum bottom Dia of 630 mm and top Dia of 180mm suitable for wind speed of minimum 65M/Sec with raising lowering system comprising of head frame, luminaries' carriage suitable to install 12 Nos. of 350 W LED Luminaries in assymmetrical arrangement, providing counter weights, double drum winch, 6 mm diameter SS wire rope, trailing cable of 5C X 2.5 Sq.mm, connector, integral power tool motor of rating not less than 1 HP, manual handle, junction box, lightning finial of GI Single Spike of length not exceeding 600 mm with mounting clamps and bolts, provision to install AOL, door at bottom with locking arragements, Base Plate not less than 850mm (Dia) X 32mm (Thick), Hot Dip Galvanised foundation bolts (of minimum size of M30 of 900 mm long) manufactured from special steel along with nuts, washers, anchor plate and template including providing and laying 40 mm Dia HDPE Pipe of PE 80 PN 6 for Cable Entry in Foundation extending up-to 3 Mtr, providing and laying armoured copper conductor power cable (up to a distance of 10 Mtr) of size 4x16 SQ MM between panel and mast, providing and fixing 32 A 4P MCB in base compartment, providing foundation with RCC as per OEM Design with all materials and labour (Including excavation beyond 900 mm of PQC/PCC Demolishing, refilling up-to the level below of 300 mm of existing Apron Level after foundation work), providing necessary tools and plants for erection and testing of high mast as required.

Fabrication, S.I.T.C of Outdoor MV Feeder Pillar Panel with double door arrangement made out of 3mm thick outer sheet and 2mm thick inner sheet and partition CRCA sheet steel, dust tight, vermin proof, totally enclosed, cubicle type WITH TOP CANOPY FOR RAIN PROTECTION, floor mounting, free standing, suitable for operation at 433 V, 3 phase, 4 wire, 50 Hz, A.C. Power Supply System complete with all accessories, interconnection, connection, earthing, painting, grouting, providing pedastal UPTO THE HEIGHT OF 450 MM, Cable Entry provision etc. as required and comprising of following: One No. 63 A FP 36 KA MCCB with OC/SC/EF Protection as Incomer with CT Operated MFM (EM 6400 of Schneider/Equivalent Make) and Phase Indication LED Lamps as required. One No. 40 A FP 15 KA MCB as Outgoing One No. 16 A TPN 15 KA MCB as Outgoing One Set comprising of One Astronomical Timer and One 25 A TP Contactor for the automatic switching of Luminaries with Auto/Manual Switching Option Power Tool Control with 2 Nos. 16A Contactors for raise and lower with push button arrangements including providing Control and Wiring for Operation at a Distance of 5 Mtr away from the Mast (Wired Remote Control Operation for Raising Lowering) Bus Section of 60A for all three phase and nuetral. Provision of One Empty Cubicle of size 250X250 mm. All accessories such as fuses/MCBs, auxillary contactors, auxillary switches, etc. as required.

Design and Supply of LED flood light luminaire to meet Apron Flood Lighting Requirements as per Site Condition, made of pressure die cast aluminium housing with toughened glass and High Purity lens optics with Surface Mounted Device (SMD) LEDs having System efficacy of more than 120 lm/W and minimum Lumen Output of 42000 Lumen with hermitically sealed separate compartments for LEDs and driver suitable to operate in temperature range of 0ᴼ to 50ᴼ C and on 230 Volt, 50 Hz AC Supply and with Lighting Characteritics of CCT of 5665 ± 355 Kelvin, CRI not less than 70, provided with 4 KV internal Surge Protection and 10 KV external surge protection, IP 66 Ingress Protection complete with all accessories etc., and meeting the techno commercial specifications as required.

Supply of LED Type twin dome red aviation obstruction light fitting made of Die-cast aluminum housing with Red polycarbonate dome with Integral driver and provided with Protection against short-circuit and surge suitable to operate for input voltage range 100 – 270 VAC with LED life time of 50,000 Hrs and fitting Ingress Protection of IP 65 as required.

Installation, Testing and Commissioning of LED flood lights fitting up to maximum rating of 400W, suitable for apron flood lighting system and having wide distribution with provision of suitable length 3 core x 2.5Sq.mm copper conductor cable for light connection with all accessories meeting the site requirements etc. as required.

Installation, Testing and Commissioning of LED Type twin dome red aviation obstruction light fitting with provision of suitable length 3 core x 2.5Sq.mm copper conductor cable for light connection with all accessories meeting the site requirements etc. as required.

Supplying and making end termination with brass compression gland and Copper lugs for 4C X 16 Sq.mm (28mm) of PVC insulated and PVC sheathed / XLPE Aluminium conductor cable of 1.1 KV grade as required.

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

Providing and fixing 25 mm X 5 mm G.I. strip in 40 mm dia G.I. pipe from earth electrode including connection with G.I. nut, bolt, spring, washer excavation and re-filling etc. as required

Supplying and laying 25 mm X 5 mm G.I strip at 0.50 metre below ground as strip earth electrode, including connection/ terminating with G.I. nut, bolt, spring, washer etc. as required. (Jointing shall be done by overlapping and with 2 sets of G.I. nut bolt & spring washer spaced at 50mm)

Providing and fixing 25 mm X 5 mm G.I. strip on surface or in recess for connections etc. as required.

Providing, laying and fixing of 65 mm dia. G.I. pipe (C Class) in PQC/Bituminous Apron/Road complete with G.I. fittings including trenching (120 mm deep cutting) positioning the Pipe and Fittings, covering with CC of 1:2:4 etc., as required

Supply and laying of 1.1KV grade 4C 25 Sq.mm. armoured aluminium conductor XLPE insulated and PVC sheathed cable conforming to IS - 7098 (Part - I) 1988 with upto date amendments in the existing RCC/ HUME/ METAL/HDPE pipe as required.

Supplying and making end termination with brass compression gland and Aluminium lugs for 4C X 25 Sq.mm (28mm) of PVC / XLPE insulated and PVC sheathed Aluminium conductor cable of 1.1 KV grade as required.

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.

Dismantling of existing LED Luminaires from the existing high masts of height not more than 17 meter, handing over to AAI stores etc., as required.

Dismantling of existing High Mast of Height not more than 17 Mtr including control panels and disconnection/dismantling of cable terminals from control panel at apron area, loading, unloading, shifting and handing over to AAI warehouse and demolishing of projected RCC existing foundation and leveling the same with PCC and disposal of material as per direction of Engineer-In-Charge.

Demolishing cement concrete (PQC/PCC) by manually / mechanical means (Depth up-to 900 mm only) including disposal of material within 50 metres lead as per direction of Engineer-In-Charge for the provision of Foundation of High Mast as required. (For Item No. 1-3)

Providing and laying in position cement concrete 1:2:4 (1cement : 2 coarse sand : 4 graded stone aggregate 20 mm nominal size) after foundation work up-to a depth of 300 mm from Apron Level including form work etc., as required. (For Item No. 1-3)

Fabrication & Supply of MS Rectangular Transformer Housing Box of size 750x330x300 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, 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 Rectangular Transformer Housing box of size 750x330x300 mm in runway/taxiway shoulder by cutting of bitumen/concrete area including providing 75mm thick cement concrete of ratio 1:2:4 on all around and bottom of the transformer housing box with required slope to level of runway/taxiway all around the housing box with the bitumen surface and plastering of exposed surfacewith cement mortar 1:4 of thickness 12 mm over the concrete surface including painting top of MS box and lettering & numbering in a base of suitable colour with one coat of zinc chromate primer and two coats of poly urethane paint etc. after installation complete as required.

* The Mast (In each Height) [with Light Fittings] shall be designed for withstanding the Wind Speed not less than 65 MPS. All Structural Dimensions (Thickness / Bottom Dia / Top Dia / Size of Base Flange etc.) given in BoQ are of Minimum Requirement only. The Mast and its Foundation shall be designed to suit the Wind Speed as specified above and the Design shall be vetted/approved by IIT/NIT. The Agency/Manufacture shall submit the Design Calculation of High Mast (In each Height) duly vetted by IIT/NIT to AAI.

candela engineering corporation (BID ID -762536)

Kripa Electronics india pvt ltd (BID ID -761678)

vk sam engineering (BID ID -763505)

Bajaj Electricals Limited (BID ID -759819)

SARASWAT ENGINEERING SERVICES (BID ID -764361)