PROVISION OF VCB FOR POWER HOUSE (HAPPY HOME) AND 400 KVA TRANSFORMER WITH CONNECTED ACCESSORIES FOR AUDITORIUM

Amount

Excavating in trenches, not exceeding 1.5 metre wide and not exceeding 1.5 metre in depth for foundation, laying cable etc or for manholes etc not exceeding 10 Sqm area on plan and getting out in soft/loose soil complete.

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

Removing excavated surplus soil not exceeding 50 metre and depositing where directed at a level not exceeding 1.5 metre above the starting point complete.

Material and labour for river washed and screened, dry sand for filling in trenches below and around underground cables for cushioning of cables. Note:- Only Punned thickness shall be measured for payment purpose.

Supply, laying, jointing & testing of underground LT cables XLPE insulated, PVC sheathed, Aluminimum conductors, multistranded, armoured heavy duty 1100 Volt grade cross sectional area 400 Sqmm 3.5 core laid in trenches/ducts/along poles/through pipe under road etc with new copper lugs complete all as specified and directed by Engr-in-Charge. Note :- Excavation, earth work, sand cushioning, protection cover and pipe shall be measured and paid for separately under respective items of this schedule.

Cable jointing kit for 11 KV (earthed) heat shrinkable, outdoor termination joint suitable for cross sectional area 120 to 185 Sqmm, 3 core aluminium conductor XLPE Cable including jointing material and accessories complete.

Cable jointing kit for 11 KV (earthed) heat shrinkable, indoor termination joint suitable for cross sectional area 240 to 300 Sqmm, 3 core aluminium conductor XLPE Cable including jointing material and accessories complete.

Supply and laying un-reinforced precast concrete cable cover class HVP type 1 with peak size 300 mm x 180 mm x 40 mm complete all as specified and directed by Engineer-in-Charge.

Supply and laying un-reinforced precast concrete cable cover class LVP type 1 with peak size 250 mm x 180 mm x 40 mm complete all as specified and directed by Engineer-in-Charge.

Earthing complete with galvanised steel earth plate electrode 600x600x6mm thick directly burried in ground (earth pit not less than 2.25 m deep below ground level) with top edge of earth plate not less than 1.5metre below the ground level connected to GI strip 32x6 mm by means of bolts nuts check nuts and washers of galvanised iron at 2 points & GI pipe 40 mm bore medium grade for protection of earth strip, PCC chamber 1:3:6 (type C-1) using 20mm graded stone aggregate, funnel with wire mesh, 50 mm thick cover of RCC 1:2:4 type B-1 using 20mm graded stone aggregate reinforced with 8 mm MS bars at 150 mm centre to centre both ways, CI frame and charcoal dust and common salt, all as shown in electrical plate No. 3 of MES SSR part-I and making test point as specified including excavation & earth work in any type of soil and connecting the earthing to an earthing point/equipment as specified and directed & testing on completion. NOTES : (i) The concrete pit shall be made in PCC 1:3:6 type C-1, using 20mm graded crushed stone aggregate 40mm thick precast cover slab of RCC (1:2:4), type B-1, using 20mm graded crushed stone aggregate with suitable MS handle in lieu of CI cover. (ii) Item includes the cost of 7.5 metre GI pipe for protection of earth strip. Any variation in length shall be adjusted through deviation order (iii) Items includes cost of 7.5 metre earth lead strip. Any variation in length shall be adjusted through deviation order. (iv) Earth electrode shall be surrounded by adequate quantity of charcoal dust and salt to a packed thickness of 15 cm on all sides

Supply, installation, testing and commissioning of step down transformer of capacity 400 KVA, outdoor type complete with standard fitting and accessories, HT 11KV, 3 Phase, LT 433 volt, 3 phase 4 wire with off load tap changer on primary side to carry secondary voltage ± 7½ % with tappings at every 2½ % all as per IS 1180-2014 level 1, copper wound, oil cooling with fins vector group : DYN 11, including initial oil fitting complete all as specified including the following accessories :- (a) Three numbers porcelain bushing HT, 11KV with brass bushing rods, nuts, bolts and washers etc inside cable end box. (b) One cable box LT side consisting of 4 Nos porcelain with brass bushing rods complete with nuts and washers suitable for runs of 3.5 core LT under ground cable. (c) Oil conservator with filler type drain valve and oil level gauge. (d) Dheydrating breather with fast fill of dehydrating agent. (e) Explosion vents (f) Thermometer pocket on tank cover. (g) One number 100mm dia, dial type thermometer vapour pressure type having range 0 to 120 degree centigrade. (h) Rating plate and terminal marking plate. (j) Earthing arrangement. (k) Oil drain filter valve. (l) Oil drain valve. (m) Lifting hook. (n) Oil conservator with filling hole and cap. (o) Air relief valve plug. (p) Four plate solid cast steel detachable rollers. (q) Earth bushing for neutral outside the cable box for providing independent earthing for neutral. (r) Suitable size of channel on foundation for fixing the transformer with joint and stopper. (s) PCC plateform complete all as shown on drawing No CEAF/TD/EM/03 SHEET 1/1 Dated 31.10.1994 revision date 09.06.2003 excluding XPM welded mesh fencing and doors including 75 x 40 mm channel.

R.K.ASSOCIATES

SUNNY ELECTRONICS CORPORTAION

SHAM AND SONS ENGINEERING WORKS

M/s NSA Engineering Corporation

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