Provision of Standby Cables to PAPI 27 and 27 Approach Lighting System and PAPI 09 and 09 Approach Lighting System at Madurai Airport

Amount

Supply of 5KV grade 2C X 6 Sq.mm Two core Airfield lighting cable with stranded annealed plain copper conductor, unarmoured unscreened PVC insulated & PVC sheathed cable as per IS 1554 part II 1988 with upto date amendments etc. complete as required.

Supply of following size DWC HDPE pipe ISI marked along with all accessories like socket, bend, couplers etc. conforming to IS 16205, Part 24 complete with fitting and cutting, jointing etc. complete as required. 63 mm dia (Outer dia)

Supply of 6 Sq mm, 5 KV grade dry type plug and receptacle of type I , class B primary connector kit with field attachment and suitable for 5KV grade single core copper conductor,PVC insulated PVC sheathed AFL cable conforming to IS 1554 part II 1988 specification etc. complete as required

Supply and fixing of 6 mm thick M.S powder coated cover plate to cover the 330 mm dia CI transformer housing box having 6 nos of M10 tapped holes with suitable gasket, M10 X 25 mm SS bolts etc. as required.

Supply of CI transformer housing box water tight, round shape of outside dia 330 mm, height 450 mm made of 10 mm thick all round except on top surface which is 15 mm thick having a clear opening of 220 mm at the top surface and 6 nos. M10 tapped holes at the hole centre of 260 mm to receive light fittiing base plate and bolts. The box shall have a two clear holes diametrically oppposite with hole centre at 75 mm above bottom surface suitable to receive 50mm dia HDPE/ "B" class GI pipe. The box shall have two SS earth bolts of M10 X 30 mm tapped inside near the holes (100 mm away from the hole centre ) and a drain hole at the bottom suitably tapped to receive 15mm dia. B class GI pipe complete as required.

Supply & laying of "B" class (Medium class) GI pipe of 50 mm dia in kerf area including providing necessary GI fittings etc. complete as required.

Providing and fixing 6 SWG dia G.I wire on surface or in recess for loop earthing along with existing surface / recessed conduit / submain wiring / Airfield cable etc complete as required.

Laying of 63mm dia (Outer dia) DWC pipe direct in ground (100 cm below ground level) in all types of soil including excavation and refilling the trench but excluding sand cushioning and protective covering etc. complete as required

Laying of one number PVC insulated and PVC sheathed 5KV grade AFL cable of the size not exceeding 6 Sqmm in the existing HDPE/GI/DWC/HUME pipe.

Laying of one number PVC insulated and PVC sheathed /XLPE insulated PE sheathed AFL cable of 5KV grade of the size not exceeding 6 Sqmm in the open duct.

Installation of 450mm CI transformer housing box with a base concrete of 1:3:6 of size 530X530X 100 mm thick, all round concrete of 1:2:4 150 mm thick top sloped with 1:2:4 cement concrete including excavation, disposal of material within 20 mtr lead. providing and fixing 300 mm long 15 mm dia "B" class GI pipe with checknut for drainage of water complete as required.

Making field connection by crimping 6 sq mm plug and receptacle with the existing 6 sqmm 5KV grade airfield cable including filling the gap with water sealent material applying HT insulation tape, over which PVC tape etc. complete as required.

Kerf cutting with machine in bituminous/ cement concrete paved area of runway for cables/ pipes of bore not exceeding 50 mm upto a depth of 0.12 meter including filling back/ sealing the cutting using cement concrete/ compound / bitumen and restoring the surface to normal condition etc complete as required but excluding pipe laying.

Brick work with F.P.S bricks of class designation 75 in foundation and plinth in Cement mortar 1:6 (1cement : 6 coarse sand)

15mm cement plaster on the rough side of single or half brick wall of mix : 1:4 (1 cement : 4 Coarse sand)

Earth work in Excavation by mechanical means (Hydraulic excavator) / manual means in foundation trenches or drains (not exceeding 1.5m in width or 10 sqm on plan) including dressing of sides and ramming of bottoms, lift upto 1.5m including getting out the excavated soil and disposal of surplus excavated soil as directed within a lead of 50m. All kinds of soil.

Constructing masonry Chamber 120x120x100 cm inside, in brick work in cement mortar 1:4 (1 cement : 4 coarse sand) for sluice valve, with C.I. surface box 100 mm top diameter, 160 mm bottom diameter and 180 mm deep ( inside) with chained lid 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 (1cement : 3 coarse sand) 12 mm thick, finished with a floating coat of neat cement complete as per standard design bricks of class designation 7.5

Demolishing cement concrete manually/ by mechanical means including disposal of material within 50 metres lead as per direction of Engineer-In-Charge. Nominal concrete 1:3:6 or richer mix (i/c equivalent design mix)

Filling available excavated earth (excluding rock) in trenches, plinth, sides of foundations etc. in layers not exceeding 20cm in depth, consolidating each deposited layer by ramming and watering, lead up to 50 m and lift upto 1.5 m.

Balaji Engineering

Akshaya Associates

MPC ELECTRICALS AND ENGINEERS