81369 REPLACEMENT OF 11 KV HT UG CABLE FROM MAIN RECEIVING STATION TO 7N DET ALONGWITH CONNECTED ITEMS AT 7N DET RAMNAD UNDER GE TIRUNELVELI

Amount

Supply, laying and testing of XLPE cables, insulated screened PVC bedded, galvanised steel strip or wire armoured, electric power cables (Heavy duty) with stranded aluminium conductor , 11KV of size 3.0 core 185 sqmm, including taking up existing, complete all as specified and directed. Note : Excavation , earthwork, sand cushioning, PCC cover slab will be measured and paid seperately

Excavation in trenches in hard/dense soil not exceeding 1.50 metre wide and not exceeding 1.5 metre in depth for laying cables and getting out complete all as specified as directed

Returning, filling, including spreading, levelling, watering and well ramming in layer not exceeding 25 cm each, hard/dense soil in trenches after the cables have been laid and tested complete all as specified and as directed.

Removing excavated soil to a distance not exceeding 50 metres and depositing where directed at level not exceeding 1.50 metre above the starting point complete all as specified and as directed.

Supply and spread fine river sand in trenches for cable cushioning on top and bottom of cable as specified.for cable protection complete all as specified and directed. (Note: Only punned thickness of river sand shall be measured)

Supplying and laying un-reinforced precast concrete cable cover, class HVP, Type 2 flat, size 450mm x 180mm x 40mm complete all as specified and directed.

Supplying and laying 80mm bore galvanised tubes, light grade with all fittings, laid in trenches complete all as specified and directed.

Cutting the existing bituminous road and excavating in trenches, n exc 1.5 m wide and n exc 1.5 m in depth; for foundation, etc. or for shafts, wells, cesspits, manholes, pier holes, etc. n exc 10 sq m on plan and n exc 1.5 m in depth and getting out in hard/dense soil complete all as specified and directed.

Demolition of cement concrete (unreinforced) in ground floors and pavings not exceeding 15 cm thickness (below or above ground level) all as specified and as directed.

Material and labour for providing 100mm thick plain cement concrete (1:2:4) type B1, using 20 mm graded stone aggregate for making good the disturbed road surface after laying of pipe line, over returned filled and compacted earth surface to match with existing road level complete all as specified and as directed.

Supply and fixing of Cable jointing kit for 11 KV (Earthed) grade cable for indoor termination Heat shrink type joint complete with jointing material and accessories suitable for 3 core XLPE armoured aluminium conductor cable of size 185 sqmm, including taking down existing, complete all as specified and directed.

Supply,installation,testing and commissioning of Outdoor type Ring Main Unit with two isolators and one vacuum circuit breaker, motorised drive, extensible type , rated voltage 12 kV, Rated current 630 A, Rated short time withstand current 21 kA /3 s, Internal Arc protection 21 KA/ sec, Internal arc classification A-FL , Standards IEC 62271-1, Bus rated current 630 A, Bushing type Type C conforming to IEC, Pressure sensor type Standard manometer without contact, IP degree of protection Tank with HV parts, IP 67 , low voltage control compartment IP3x Front face+mechanism IP 3x, IK degree of protection IK07, cable compartment IP2xC, Interlocking type ESW+LBSW,Cable box type standard without window , Control type Manual switch disconnector , Motor mechanism O-3 min CO 24 V at DC circuit breaker, Auxillary contact composition-2 NO+2 NC switch disconnector , 1 NO+ 1 NC earthing switch, 2NO+2NC circuit breaker, Current transformer ratio 75-150/1A including cable termination, control cable connections and taking down old unserviceablke joint kit complete all as specified and dierceted. d directed. Make: Schneider Electric, Type : FBX, Model CC2, Extensible version or equivalent in Siemens/BHEL/ ABB/Andrew Yule/ Areva T & D Note: VCBs with vaccuum interruptors should be of same make.

Supply and fixing of Cable jointing kit for 11 KV (Earthed) grade cable for straight through Heat shrink type joint complete with jointing material and accessories suitable for 3 core XLPE armoured aluminium conductor cable of size 185 sqmm, including taking down existing, complete all as specified and directed.

Material and labour for earthing complete with copper earth plate of size 60 cm x 60 cm x 3.15 mm thick, buried directly in ground (earth pit not less than 2.25m deep below ground level) with top edge of earth plate not less than 1.5m below normal ground level, connected to 20mm x 3mm copper strip by means of bolts, nuts, check nuts and washers of copper all as shown in electrical plate No.3 connected to earthing test point 20mm bore GI medium grade watering pipe and 40mm GI medium grade pipe for protection of Earth strip, with funnel including charcoal dust, salt, all as shown in electrical plate No 3 of SSR Part - I (2009) Specifications complete with necessary earth work in any type of soil, removal to a distance n.exc 50 m, including testing on completion, PCC chambers in PCC 1:3:6 type C1, RCC M25 type cover slab 50mm thick with 8mm dia TMT HCR / CRS steel bars at 140mm C/C bothway and lifting handle GI funnel complete all as specified and as directed by Engineer-in-Charge. Note : The cost of excavation, earth work, PCC pit, CI cover, funnel, watering pipe, wire mesh, charcoal dust, common salt, GI pipe as protection to earth lead strip shall be deemed to be included in the quoted rate.

Supply and fix Cast iron cable route indicator of size 200mm dia 10mm thick, duly painted the size of cable and arrow indicator with 3mm thick letter size, including MS angle iron of size 50x50x6mm -1.2 metre long complete with PCC block 1:3:6 (using 20mm aggregate) of size 500x500x600mm complete with grounding all as specified and directed

Surface excavation not exceeding 30 cm deep and averaging 15 cms and getting out in soft/ loose soil complete all as specified and directed.

Excavating in trenches, n exc 1.5 m wide and n exc 1.5 m in depth; for foundation, etc. or for shafts, wells, cesspits, manholes, pier holes, etc. n exc 10 sq m on plan and n exc 1.5 m in depth and getting out in hard/dense soil, complete all as specified as directed

Material and labour for plain cement concrete, type D2, (1:4:8) using 40mm graded stone aggregates as in foundation, filling and mass concrete complete all as specified and directed.

Material and labour for brick work built in cement mortar 1:4 using fly ash bricks, modular type, straight or curved on plan exceeding 6 mtrs mean radius all as specified and as directed.

Material and labour for Hardcore of gauge n exc. 63 mm, deposited, spread and levelled in layers n exc. 15 cm thick, watered and rammed to a true surface using broken stone or aggregates all as specified and as directed.

Material and labour for plain cement concrete, type B2, (1:2:4) using 40mm graded stone aggregates as in foundation, filling and mass concrete complete all as specified and directed.

Material and labour for 15 mm rendering in cement mortar 1:6 on fair faces of brickwork or concrete surfaces finished even and fair complete all as specified and as directed.

Material and labour for preparation of newly plastered surfaces and applying three coats of white wash all as specified and as directed.

rvelectricals

S KUMARAN

SHAPE MAKER