Provision of ILS at Tuticorin Airport SH External Electrical Works

Supply of 3.5Cx400 Sq.mm 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.

Supply of 4 C x 25 sqmm 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.

Laying of one number PVC insulated and PVC sheathed / XLPE power cable of 1.1 KV grade of following size in the existing RCC / HUME / METAL pipe as required. Above 185 sq. mm and upto 400 sq. mm

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 as required. upto 35 sq. mm (clamped with 1mm thick saddle)

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. Above 185 sq. mm and upto 400 sq. mm

Supplying and Laying of HDPE pipe of 125mm OD of PE 100 PN 6 ISI marked along with all accessories like socket bend couples etc, confirming to IS 4984 complete with fitting and cutting, jointing etc. direct in ground at a depth of 0.8m below the ground level i/c excavation and refilling the trench but excluding sand cushoning and protective etc as required.

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

Providing and laying earth connections from earth electrode with 6 SWG dia G.I wire in 15 mm dia G.I pipe from earth electrode as required.

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 as required 3.5 X 400 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 as required 4 X 25 sq. mm

Supply, Installation, Testing and Commissioning of outdoor type totally enclosed MV LT panel, degree of enclosure protection shall be IP 55 as per IS 13947 ([part-I), with front and back openable arrangement completely made up of i/c internal partitions of 14 SWG CRCA sheet steel, i/c cleaning & finishing complete with 7 tank process for powder coating in approved shade, dust tight, vermin proof totally enclosed, cubicle type floor mounting, free standing including providing and fixing of extensible type 200 A Aluminium bus bar with all accessories suitable for operation at 415V, 3 phase, 4 wire, 50 Hz, A.C power supply system complete with all accessories, interconnection with solid Aluminium strip neutral links, earthing, painting, grouting, providing cable entry provision, cable chamber control wiring with 1.5 sq.mm PVC insulated FRLS copper conductor single core multistrand cables, cable gland plates, danger notice plates etc. as required and mounted with the following switch gears as per technical specification required and comprising the following : INCOMER 200 A, 25 kA, 4P MCCB with Microprocessor based releases for short circuit, overcurrent as incomer with R,Y,B,ON,OFF, Trip indication lamps, resin cast CT's with 3 phase multifunction meter with RS 485 (for V, A, kWH, kW, PF, Hz, kVA & THD - L&T WL 5010 or equivalent), double SPD for redundancy- 2 sets as incomer suitable for terminating incomers of2 runs of 3.5 core 400 sq.mm with suitable spreader links(suitable cable termination chamber are to be provided withour any extra cost). Buscoupler 200A, 25kA 4P MCCB without relase OUTGOINGS a) 63 A, 25KA, 4P MCCB with microprocessor based releases for SC &OC with resin cast CTs, digital Ammeter, ON, OFF, Trip indication lamps as outgoing - 3 set as outgoing. b) 200A, 25KA, 4P MCCB with microprocessor based releases for SC & OC with resin cast CTs, digital Ammeter, ON, OFF, Trip indication lamps as outgoing - 1 sets as outgoing. c) SPARE compartments suitable from MCCB rating of maximum 63Amps - 1 no.

Excavation of the cable trenches in hard rock not exceeding 1.5 metres in width, and lift upto 1.5 metres, including getting out the excavated soil and disposal of excavated soil as directed within a lead of 50 metres.

Laying of HDPE pipe/cable etc by using Horizontal Drilling Method not exceeding 1.50m in depth and not more than the length of 30m complete as required. (excluding cost of HDPE pipe)

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.

Supply and Installation of Thermo plastic poly-carbonate Junction box complying IP54 protection of minimum size 680mm x 1035mm x 400mm with 4 Nos 50mm x 10mm copper bus bar to terminate 3.5 x 400 mm2 aluminium conductor cable with suitable gland and mounting frame mounted on pedestal complete etc. at a minimum height of 1m above ground level on 2 nos of MS L angle for both vertical support and flat wall mount support of size 60mm x 60mm x 6mm on a concrete pedestal of size 300mm x 300mm x 600mm (depth) with CC ratio of 1:2:4 etc as required.

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

Constructing brick masonry manhole in cement mortar 1:4 ( 1 cement : 4 M sand ) with R.C.C. top slab with 1:1.5:3 mix (1 cement : 1.5 M sand (zone- III) : 3 graded stone aggregate 20 mm nominal size), foundation concrete 1:4:8 mix (1 cement : 4 M sand : 8 graded stone aggregate 40 mm nominal size), inside plastering 12 mm thick with cement mortar 1:3 (1 cement : 3 M sand) finished with floating coat of neat cement and making channels in cement concrete 1:2:4 (1 cement : 2 M sand : 4 graded stone aggregate 20 mm nominal size) finished with a floating coat of neat cement complete as per standard design : Inside size 90x80 cm and 45 cm deep including C.I. cover with frame (light duty) 455x610 mm internal dimensions,total weight of cover and frame to be not less than 38 kg (weight of cover 23 kg and weight of frame 15 kg) : with bricks of class designation 7.5

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.