Replacement of Feeder Cable for SAPL R/W 23 and Provision of standby Feeder for R/W 23 PAPI at Coimbatore International Airport SH Laying of AFL Cable and Allied works

Amount

Supply of C.I. Transformer housing box water tight round type metal container of out side dia of 330 mm, height 450 mm made of 10 mm thick cast iron moulding all round except on top surface which is 15 mm thick suitable to receive a light fitting base plate at the top and underground housing associated with transformer power cable and having two nos of collar at opposite sides 75 mm above bottom surface suitable to receive two nos. for 50 mm dia 'B' class G.I. pipe & having clear opening of 220 mm at top surface and 6 nos. M 10 tapped hole at the centere of 260 mm to receive light fitting base plate and bolts and with 3mmx330mm round MS cover plate to fix on CI box as required.

Installation of C.I. Transformer housing box water tight round type metal container of outside dia of 330 mm, height 450 mm in ground with 1:2:4 concrete ( 1: cement, 2 : coarse sand, 4 : concrete of 20mm nominal size) at base and all around the CI box of 100 mm thick and a pedestral concrete of 1 mtr x 1 mtr near the ground level at a depth of 20 cm with suitable coping at top as specified in the drawing including providing of MS base plate of thickness 10 mm, gasket, 6 sets of SS hardware and fixing of the same with CI Transformer housing box etc. complete as required as per specification & drawing.

SITC of 3mm thick hot press moulded SMC box (GS -JB -3126 type or equivalent) of size with outside dimensions not less than 317mm(H) x 265 mm(W) x 160mm(D) outer dimensions and fixing on surface and making necessary provision for cable entry for 2 x 25 sq.mm/2 x16 sq.mm/1x6sq.mm PVC sheathed & PVC insulated armoured/unarmoured cable and cable connection arrangement by providing 2 nos. of 100A kitkat fuse base and carrier on 8 mm thick hylum sheet of suitable size etc. as required.

Laying of one number PVC insulated and PVC sheathed / XLPE power cable of 5 kV grade of following size in the existing RCC/ HUME/ METAL/ PIPE / closed masonry duct as required. 2 x 16 Sqmm

Laying and fixing of one number PVC insulated and PVC sheathed / XLPE power cable of 1.1 kV grade of following size on wall surface/ cable tray etc. as required. 2 x 16 Sqmm

Supplying and laying of following size ISI marked DWC HDPE pipe along with all accessories like socket, bend, couplers etc. conforming to IS 14930, Part II complete with fitting and cutting, jointing etc.in the existing trench/ duct ., complete as required. 50 mm OD, 38 mm ID

Making field connections by crimping 2 x16/6 Sq.mm plug and receptacle with existing 2 x16/6 Sq.mm single core copper conductor PVC insulated and PVC sheathed cable including filling the gap with water sealent material applying HT tape over PVC tape etc as required.

Excavation for cable trenches in soft soil, depth upto 1.2 m including dressing of sides lift upto 1.5 m, including getting out the excavated soil, refilling with sand and or good soil after laying of cable/ pipe etc. in layers of 20 cm, ramming, watering and disposal of surplus excavated soil as directed, within a lead of 50 meters.

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)

Providing and laying in position cement concrete of specified grade excluding the cost of 1:2:4 (1 cement : 2 coarse sand : 4 graded stone aggregate 20 mm nominal size).

Earthing with G.I. earth pipe 2.75 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.

Supply and laying of 6 SWG dia GI wire along with cable including providing lugs for termination, etc complete as required.

Providing, laying and fixing following dia RCC pipe NP2 class (light duty) in ground complete with RCC collars, jointing with cement mortar 1:2 (1 cement : 2 fine sand) including trenching (75 cm deep) and refilling etc. as required. 300 mm dia

Constructing masonry chamber of size 80x80x100 cm inside, in brick work in cement mortar 1:4 (1 cement : 4 coarse sand) for cable laying 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 with common burnt clay F.P.S.(non modular) bricks of class designation 5, including fabrication and fixing of GI chequered plate manhole cover with 80 x 80 cm size and 5 mm thick including MS L angle support, lifting hooks etc. the masonry chamber shall protrude 10 cm above the ground level to prevent water entry etc, complete as required.

Techno Electricals

Shantha ELectricals and Engineers Pvt Ltd