SPECIAL REPAIRS CONVERSION OF LT OH LINE TO LT XLPE UG CABLE AND ITS ALLIED WORKS IN TECH AREA AT AF STATION TAMBARAM

Amount

Dismantling cross arms of MS channel or angle iron section etc complete and setting aside for re-use within 50 mtr complete all as specified and as directed.

Dismantling of insulators any type and size complete all as specified and as directed.

Dismantling old and unserviceable ACSR conductor of any size / including disconnecting from the poles and depositing where directed complete all as specified and as directed.

M&L PCC 1:3:6, type C-1, using 20 mm graded crushed stone aggregate as in foundation/ road cutting etc including necessary form work and finishing the exposed concrete surfaces even and fair all as specified and as directed

M&L Straight through joints heat shrinkable joint kits suitable for 3.5/4 core PVC insulated and PVC sheathed armoured LT underground cable 25 to 50 Sq mm with aluminium conductors including joint kits and labour complete for making joints all as specified and as directed .

Description all as per item No 5 above but 3.50/4 core cable 70-120 Sq mm.

Description all as per item No 5 above but 3.50/4 core cable 240-300 Sq mm

Cutting chases on concrete surfaces for concealed GI tubing/HDPE pipe exceeding 10 cm but not exceeding 20 cm girth ,making good to facing where required and pointing in cement morter 1:3 all as directed.

Excavation in trenches not exceeding 1.5 mtr deep and not exceeding 1.5 mtr wide and getting out in hard/dense soil for all as directed.

Returning and refilling of excavated soil upto a depth of 30 cm after riddling the excavated soil for laying underground cables and post holes all as specified and as directed.

Labour only for returning and filling of trenches using riddled soil obtained from excavated soil upto depth of 23 cm (8 cm below cable and 15 cm above cable) for cushioning of cable all as specified and directed. Note :- Excavated soil shall be riddled by using sieve to separate composite particles etc as per IS 1255- 1983 and refilling in trenches as in cable cushioning

Removal of surplus soil to a distance not exceeding 50 mtr and depositing where directed at a level not exceeding 1.5 mtr above the starting point.

M & L for brick protection to cable using old size sub class 'B' bricks, laidflat, dry butt jointed, laid lengthwise perpendicular to the axis of cable all as specified & directed.

Supply and Laying LT UG cable 1100 Volts grade XLPE insulated PVC sheathed amoured, heavy duty, in trenches/walls/poles/passing through pipes with stranded aluminium conductor of 6 sqmm 2 core complete including lugs/thimble/ferules connection, testing and commissioning complete all as specified and as directed.

All as per item No.14 above, but of size 6 sqmm 4 core

All as per item No.14 above, but of size 10 sqmm 4 core

All as per item No.14 above, but of size 16 sqmm 4 core

All as per item No.14 above, but of size 25 sqmm 4 core

All as per item No.14 above, but of size 50 sqmm 3.50 core

All as per item No.14 above, but of size 70 sqmm 3.50 core

All as per item No.14 above, but of size 95 sqmm 3.50 core

All as per item No.14 above, but of size 120 sqmm 3.50 core

All as per item No.14 above, but of size 150 sqmm 3.50 core

All as per item No.14 above, but of size 240 sqmm 3.50 core

All as per item No.14 above, but of size 300 sqmm 3.50 core

Taking out the existing any description of LT UG cable of size 10 sqmm to 16 sqmm 2/4 core and find out the fault and re-laying of the same LT UG cable 1100 Volts grade PVC insulated PVC sheathed amoured, heavy duty, in trenches/walls/poles/passing through pipes with multistranded aluminium conductor including lugs/thimble/ferules connection, testing and commissioning complete all as specified. Notes: [i] Earth work, excavation sand cusioning, bricks for protection, GI pipe, LT UG Cable Joints etc shall be measured separately under relevant items of this schedule . [ii] If old LT UG cable will found unserviceable, if requirted LT U/G cable shall be mesaured and paid as Supply and Laying of LT UG cable under relevant items of this schedule.

All as per item No.26 above, but of size 16 sqmm to 35 sqmm 3.5 core

All as per item No.26 above, but of size 50 sqmm to 120 sqmm 3.5 core

All as per item No.26 above, but of size 150 sqmm to 240 sqmm 3.5 core

All as per item No.26 above, but of size 240 sqmm to 400 sqmm 3.5 core

S & F GI tubing 'Light' grade 40mm bore with all fittings for cable protection fixed on poles/walls/laid under roads crossing etc and made good the disturbed surfaces/area complete all as specified and as directed.

All as per item No.31 above, but of size 50 mm Bore

All as per item No.31 above, but of size 80 mm Bore

All as per item No.31 above, but of size 100 mm Bore

M&L for 20 mm dia PVC conduit and accessories fixed to walls, poles etc for cable protection complete all as specified and directed.

S&F PVC junction box out door type of size 280 mm x 170 mm x 130 mm with front openable hinged cover complete with two number aluminium bus bars mounted on porcelain insulator including clamps of MS flat iron 25 x 3 mm with bolts and nuts to fixed on pole/wall incl taking down of old U/S all as specified and directed. Make: SINTEX

S&F 3 core cable PVC insulated copper conductor, 1100 Volts grade, 2.5 Sqmm size of ISI marked complete all as specified and directed.

M&L for cable route indicator oval shaped of size 170x150x6mm thick made out of CI or MS with letter embosed as "LT UG CABLE" fixed to 25x25x6mm MS angle iron 450 mm long embedded in PCC block 20x20x20 cm, in PCC (1:3:6) type C1 using 20 mm stone aggregate all as specified andas directed.

Material and labour for earthing complete with GI plate electrode 600x600x6mm thick, buried directly in ground (earth pit not less than 2.25m deep below ground level) with top edge of plate not less than 1.5m below ground level connected to earth lead of 32x6 mm GI strip means of bolts, nuts, washers of galvanized all as shown in electrical plate No.3 of SSR Part-I including necessary excavation and earth work. PCC 1:3:6 type C1 chamber, RCC cover in 50mm thick 1:2:4 type B1 with 8mm CTD 140mm centre to centre with suitable handle, watering pipe 20mm dia light grade pipe with funnel, charcoal salt connected to earthing test point all as specified including testing and commissioning on completion

Boring of holes under road,pavement and hard standing by trenchless techonology using ultra sound technique and necessary machine including HDPE pipe of 150 mm dia suitable for o.4 mpa working pressure

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