REPAIR AND MAINTENANCE OF LT DISTRIBUTION INSTALLATIONS AND CONNECTED MISC WORKS AT SMQ, HQ, X AND L AREA AT AF STN DIGARU.

Amount

Dismantling of LT UG cable of any size and specification duly disconnecting all electrical connections including taking down all accessories complete all as specified & directed by Engr-in-Charge.

Supply, laying, jointing and testing of XLPE insulated, PVC bedded, Galvanized steel strip or wire armoured underground heavy duty electric power cable with stranded aluminum conductor 1100 volts grade, laid in trenches/ duct/ on pole including all necessary fixing arrangement such as lugs, glands end termination etc of cross sectional area 35 Sqmm x 3.5 core complete all as specified and directed. Note :- Excavation and earth work, sand cushioning, protection covers protection pipes and jointing kits including jointing materials shall be measured and paid for separately.

All as per item No-02 here in above but of size 50 Sqmm x 3.5 core complete all as specified and as directed.

All as per item No-02 here in above but of size 70 Sqmm x 3.5 core complete all as specified and as directed.

All as per item No-02 here in above but of size 95 Sqmm x 3.5 core complete all as specified and as directed.

All as per item No-02 here in above but of size 120 Sqmm x 3.5 core complete all as specified and as directed.

All as per item No-02 here in above but of size 150 Sqmm x 3.5 core complete all as specified and as directed.

All as per item No-02 here in above but of size 185 Sqmm x 3.5 core complete all as specified and as directed.

Excavation in trenches, not exceeding 1.50m wide and not exeeding 1.50m in depth for foundations, trenches of cable or pipe lines etc or and getting out in soft/ loose soil complete all as specified and as directed.

Returning filling in, including spreading, leveling, watering and well ramming in layers not exceeding 25 cm in soft/loose soil complete all specified and as directed.

Removing excavated materials (soil) to a distance not exceeding 50 meters and depositing where directed at a level not exceeding 1.5 meters above the starting point complete all specified and as directed.

M&L for sand cushioning with coarse sand in trenches for protection of underground electric cable, spread to uniform 23 cm thickness and punned down gently to 18 cm after spreading over the cable complete all specified and as directed.

Supply and laying well burnt sub class 'B' old size bricks, laid flat dry, in trenches with width of the bricks laid to the axis of cable for cable protection complete all as specified and as directed.

S & F in repair GI pipe “Light Grade” in trenches, under floors, roads, along poles or walls including suitable size clamps for protection of cables and sealing ends complete all as specified for the following sizes of pipes :-

(a) 50 mm bore

(b) 80 mm bore

(c) 100 mm bore

Dismantling of MCCBs/Change over of any size any type duly disconnecting all electrical connections including taking out all accessories complete all as specified & directed by Engr-in-Charge.

S & F MCCB 63 Amps, 4 Pole, 16 KA breaking capacity, Adjustable Thermal & Adjustable magnetic setting complete all as specified and directed.

S & F MCCB 125 Amps, 4 Pole, 25 KA breaking capacity, suitable Frame size, Adjustable Thermal & Adjustable magnetic setting complete all as specified and directed.

S & F in repair MCCB 160 Amps, 4 Pole, 25 KA breaking capacity, Adjustable Thermal & Adjustable magnetic setting complete all as specified and directed.

S & F MCCB 200 Amps, 4 Pole, 25 KA breaking capacity, Adjustable Thermal & Adjustable magnetic setting complete all as specified and directed.

S & F MCCB 250 Amps, 4 Pole, 36 KA breaking capacity, Adjustable Thermal & Adjustable magnetic setting complete all as specified and directed.

S & F MCCB 320 Amps, 4 Pole, 36 KA breaking capacity, Adjustable Thermal & Adjustable magnetic setting complete all as specified and directed.

M&L Cross arms, bracings, supports, clamps and back plates fabricated from structural steel sections/ MS Pipes including nuts, bolts, washers, welding, bending cold or hot, drilling holes for bolts, in any shape or size as indicated or directed and inclusive of one primer coat, one under coat and one finishing coat of paint including takingdown old unsv. one complete all as specified and directed by Engr-in-Charge

M&L earthing complete with galvanised steel earth plate electrode of size 600 x 600 x 6 mm thick buried directly in ground in vertical position (earth pit not less than 2.25 m deep below the normal ground level) with top edge of the earth plate not less than 1.5m below normal ground level, connected to galvanised earth lead of GI strip 32x6 mm by means of bolts, nuts, check nuts and washers of galvanised iron or steel, all as shown in electrical plate No. 3 connected to earthing test point and including dismantling complete all as specified and directed. Note :- The unit rate shall also include for earth work in any type of soil, PCC 1:3:6 type C1 chamber, RCC 1:1.5:3, type A1 cover slab, 50mm thick reinforced with 8mm dia TMT bar @ 140mm C/C both ways, 10mm dia plain bar lifting handle embedded in cover slab, 20 mm bore medium grade GI watering pipe, 15mm bore GI light grade earth lead protection pipe, funnel, wire mesh, copper lugs, charcoal and common salt in alternate layer etc.

Cutting/ trimming of tree branches in close proximity to over head lines to maintain a clearance of 3.0 meters from the over head line and approx height upto 15 Mtr from ground level to nearby trees complete all as specified and as directed. Note :- Only effected length of over head conductor (length of only one conductor for the effected area) shall be measured as per running meter for payment purpose.

M&L for Cleaning the area including uprooting of weeds/grass and removing creepers from fencing or poles/ posts and brooming the complete area of sub station around panels, transformers and four pole structures complete all as specified and directed.

S & F in repair change over switches on load type 4 pole, 36 KA breaking capacity, front handle operated with sheet steel enclosure and 415 Volt complete all as specified and directed.

Ankur Electricals (BID ID -3242702)

Nripen Kalita (BID ID -3249342)

M/S Vimal Enterprise (BID ID -3248721)