Replacement of life expired 15 KVA DG sets at various Telephone Exchanges under Andaman and Nicobar Circle. ( SW- DG allied works under North and Middle Andaman District-2 sites)

Laying of one number PVC insulated and PVC sheathed / XLPE power cable of 1.1 KV grade of following size direct in ground including excavation and refilling the trench etc as required, but excluding sand cushioning and protective covering. i) Upto 35 sq. Mm

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/PVC pipe as required.i) Upto 35 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. i) Upto 35 sq. mm (clamped with 1mm thick saddle)

Supplying and making indoor 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. [3½ X 25 sq. mm (28mm)]

Providing, laying and fixing following dia G.I. pipe (medium class) in ground complete with G.I. fittings including trenching (75 cm deep) and re-filling etc as required. [50 mm dia]

Earthing with G.I. earth plate 600 mm X 600 mm X 6 mm thick including accessories, and providing masonry enclosure with cover plate having locking arrangement and watering pipe of 2.7 metre long 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.

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

Excavation for foundation in soft soil 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 metres (Foundation for Neil Island)

Providing and laying in position cement concrete 1:3:6 (1 cement: 2 coarse sand : 6 graded stone aggregate 40 mm nominal size) in foundation of pump, DG set etc including form work etc as required.

Providing and laying in position cement concrete 1:2:4 (1 cement: 2 coarse sand : 4 graded stone aggregate 20 mm nominal size) in foundation of pump, DG set etc including form work etc as required.

Providing 15 mm thick cement plaster of mix 1:4 (1 cement : 4 fine sand) at all levels.

Supplying & fixing of 63 A four pole onload changeover switch, 415V, 50Hz, in SS enclosure, complete as reqd. (Neil Island)

Providing of display board of suitable size made of GI sheet and painted with yellow background and black letters consisting of the details of DG set i/c date of commissioning, fixing at suitavle location complete as reqd. (to be approved by the EIC)

Supplying and delivery of PVC insulated and sheathed armoured 3½ X 25 sq. mm Al. armoured conductor 1.1 KV grade cable and laying the same on surface/air as reqd.(BSNL approved make).

Supplying and delivery of PVC insulated and sheathed armoured 2 core 1.5 sq.mm cu armoured conductor 1.1 KV grade cable as reqd.(BSNL approved make).

Supplying and making end termination with brass compression gland for PVC insulated and sheathed copper conductor cable of 1.1 KV grade of size 2 core 1.5 sq.mm as reqd.

Supplying and laying of medium class CPVC pipe of 25 mm dia. (nominal) for cable protection complete as reqd in existing trench complete as rfeqd.

Structural steel work riveted, bolted or welded in built up sections, trusses and framed work, including cutting, hoisting, fixing in position and applying a priming coat of approved steel primer all complete:

Providing and fixing precoated galvanised iron profile sheets (size, shape and pitch of corrugation as approved by Engineer-in-charge)0.50 mm + 0.05 %, total coated thickness with zinc coating 120 gsm as per IS: 277 in 240 mpa steel grade, 5-7 microns epoxy primer on both side of the sheet and polyester top coat 15-18 microns. Sheet should have protective guard film of 25 microns minimum to avoid scratches while transportation and should be supplied in single length upto 12metre or as desired by Engineer-in-charge. The sheet shall be fixed using self drilling /self tapping screws of size (5.5x 55mm) with EPDM seal, complete upto any pitch in horizontal/ vertical or curved surfaces excluding the cost of purlins, rafters and trusses and including cutting to size and shape wherever required.

Dismantling of the old 15 KVA/30 KVA DG set from the existing position, disconnectiong the electrical connection, control panel, exhaust system, earth leads and stacking at proper location as per the direction of the site in charge, complete as required

K. M. ENTERPRISE