SPECIAL REPAIR/REPLACEMENT OF UG STREET AND PERIMETER LIGHT CABLES AND ASSOCIATED WORKS AT AF STN MEMAURA

Amount

Taking up old unserviceable LT underground cable of size 16 to 25 sqmm 2/3.5/4 core all as directed.

Taking up old unserviceable LT underground cable of size 50 sqmm 3.5 core all as directed.

Excavation in trenches n.exc 1.5 m wide and n.exc 1.5m depth and getting out in soft/loose soil for laying underground cable, foundation of pole and stay etc etc complete, all as specified and directed.

Returning, filling in, including spreading, levelling, watering and well ramming in layers not exc 25 cmcomplete, all as specified and directed.

Removing surplus excavated material to a distance not exc 50 meter and depositing where directed at level not exc 1.5m above the starting point, complete, all as specified and directed.

Material and labour for Sand cushioning to cable with a layer of sand 8 cm deep before laying the cable and 15 cms deep after laying the cable (punned down to 18 cms depth after laying and stretching of cable ) complete all as specified and as directed.

Material & labour for kiln burnt bricks sub-class`B' (old size), laid flat in trenches for cable protection complete all as specified and directed.

Laying only serviceable bricks obtained from taking up of underground cables, laid dry flat in trenches with width of the bricks laid to the axis of cable for protection of cable, complete all as specified and directed.

Labour including necessary T&P required for Boring of holes under road, pavement, hard standing, blast wall without damaging the surface of road (minimum 1.00 meter below the road surface) for passing underground cable through GI pipe, complete all as specified and directed. (Note- GI pipe shall be measured & paid under respective BOQ item)

M&L for 50 mm bore GI tubing light grade with all fittings laid along electric pole for cable protection complete all as specified and directed.

Supply, laying and testing LT cable 1100 volts grade XLPE insulated, screened, PVC bedded, galvanized steel strip or wire armoured, electric power cables (heavy duty) with stranded aluminium conductor of size 50 sqmm, 4 core complete all as specified & directed.

Supply, laying and testing LT cable 1100 volts grade XLPE insulated, screened, PVC bedded, galvanized steel strip or wire armoured, electric power cables (heavy duty) with stranded aluminium conductor of size 25 sqmm, 4 core complete all as specified & directed.

Supply, laying and testing LT cable 1100 volts grade XLPE insulated, screened, PVC bedded, galvanized steel strip or wire armoured, electric power cables (heavy duty) with stranded aluminium conductor of size 16 sqmm, 4 core complete all as specified & directed.

Dismantling of old PCC pole of any size with necessary disconnection of electric wire, demolition of concrete foundation including excavation, earth work as recovered and removing the same from site complete all as specified and directed.

Dismantling of old street light brackets incl clamps etc complete all as specified and directed.

M&L for cement concrete 1:4:8 type D-2 using 40mm graded stone aggregate in foundation, filling and mass concrete as in sub base of poles etc., complete all as specified and directed.

M&L for cement concrete 1:3:6 type C-1 using 20mm graded stone aggregate as filling in mass concrete, pole foundation and plinth block including necessary form work, complete all as specified and directed.

S&F for octagonal hot dip galvanized street light poles ,height 7 mtrs, top dia 70mm, bottom dia 130mm,thickness 3mm,base plate 220x220x12mm, foundation nut bolts as per manufacturer recommendation and galvanized bracket single arm for fixing of street light complete all as specified and directed. (Make- Shourya electronics/Jindal/Utkarsh/Surya/Bajaj or equivalent)

M&L painting of LT octagonal pole bottom portion with two coat of Air Force blue (0.75M above foundation) over a coat of red oxide primer & 02 Nos alternate layer of red & yellow colour self adhesive reflectic tape of 100MM width & writing pole number on black background with white lettering after cleaning well the existing surface complete all as specified and directed.

S&F in replacement thermoplastic cable junction boxes IP 65 with metric knockouts for cable entry, weather proof for outdoor installation and including glands and with 4 terminals for terminating one incoming and outgoing UG cable of size 10/16 sqmm 4 core and fixed adjacent to the Octagonal Poles by means of PCC foundation and suitable size MS angle iron brackets with nut and bolts and incl provn for fixing 01 Nos of single pole MCB SP 0.5-3 Amp 'C' series inside the box and all specified and directed. NOTE : MS angle iron brackets are to be painted with 2 coats of Airforce blue paint over a coat of red oxide metal primer . Make- Sintex cat No GSJB. 3726/Hensel or equivalent.

S&F PVC insulated & PVC sheathed 3 Core 1.5 sqmm copper conductor cable drawing inside the Pole/ bracket of street light complete all as specified and directed. Make - Havells/Ploycab/Grandlay or equivalent.

Supply, install, testing and commissioning of outdoor type cubical bus bar chamber of minimun size 600 x 750 x 450 mm suitable for 3 phase 4 wire 415 Volt, 50 Hz and, having 4 aluminium bus bar of suitable length and of capacity 250 amp factory fabricated in an approved factory having modern fabrication process powder coated paint of approved shade and provided with suitable gasket to make it dust /vermin proof. The outer shell shall be made out of 3.15mm thick CRCA Sheet and MS angle section 40x40x6mm frame, factory fabricated with front openable double door system locable / openable by keys from both side having chromium plated 19 mm dia fancy lock, louvers and air vent gasket for natural flow of air. The dimension of the shell should be adequate to accomodate inner shell described below giving minimum 75 mm space all round. Provision of earthing strip at bottom of suitable size. The degree of protection of outer shell shall be IP-54. The bottom of the outer shell contains a ditachable plate having provn for entry of armoured cable of adequate size with glands complete all as specified and directed including PCC foundation as per manufaturer instructions.

M&L for earthing complete with galvanised steel earth plate electrode 600x600x6.00 mm thick, burried directly in ground vertically to a depth not less than 2.25 mtr deep below GL with top edge of the plate not less than 1.5 mtr below normal GL and connected to earth plate . Earth plate surrounded by 15 cm thick packed layers of charcoal/coke and common salt upto 0.90 meter depth all around the earth plate and connected to earth lead of GI wire 4 mm dia by means of bolts, nuts, check nuts and washers of GI or steel and thimbles and other end of the earth wire connected to equipments/panels and protected by galvanized iron or steel pipe medium grade 15 mm bore and water pipe 20 mm bore GI light grade with funnel and wire mesh, including all necessary excavation and earth work PCC chamber in cement concrete 1:3:6 type C-2 and RCC cover and all as shown in electrical plate No 3 of MES schedule Pt I of 2009 and also including making test point for testing of earthing complete all as specified and as directed. Note : 1. RCC pit cover shall be pre-cast of RCC (1:2:4) type B-I , 50mm thick reinforced with XPM weighting not less than 4 KG/sqmm in lieu of CI cover. 2. Charcoal/coke and common salt upto 0.90 meter depth shall be filled in layers of 15 centimeters all around the earth plate. 3. On testing after completion of earthing if desired earth resistance is not achieved , the earthing will be redone at no extra cost to obtain the desired earth values.

Demolition of cement concrete of ground floors and paving n.ecx 15 cm thick (below or above ground level) complete all as specified and directed.

M&L for cement concrete type C2 , 1:3:6 using ( 40 mm graded aggregate) in plinth protection including necessary form work all as specified and directed.

Unnati Engineers (BID ID -3123130)

GUPTA ENGINEERING WORKS (BID ID -3123979)

MD BUILDER (BID ID -3123368)

D K THUKRAL AND SONS (BID ID -3124126)