SPECIAL REPAIR TO HT CABLE AND ALLIED WORKS AT NMRL ANBERNATH

Amount

Taking down old unserviceable HT cables 3 core 120 sqmm size from trenches including disconnecting cables and stacking of cables within 50 meter lead complete all as specified and directed.

Supply laying, testing and commissioning aluminium HT cable 22 KV. 3 core 120 Sqmm, stranded compacted circular aluminium conductor, screen with extruded semi conducting compound, XLPE insulated, insulation screeding with extruded semi conducting compound in combination with copper tape, cores laid up, inner sheath of PVC, Galvanised steel flat strip armoured & overall PVC sheathed cable confirming to IS 7098 (Part-2) 2011 with upto date amendments complete all as specified and directed by Engr-in-Charge. Note : Earthwork and Excavation shall be measured and paid separately.

Excavation in trenches not exceeding 1.5 mtr wide and not exceeding 1.5 mtr deep for taking out/laying of HT/ LT under ground cable and getting out in the following type of earth stata complete all as specified and as directed:- (a) Soft / Loose Soil

(b) Hard/ Dense Soil

(c) Soft/ Disintegrated rock

(d) Hard Rock

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

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

Material and labour for dry crushed stone sand filling in trenches to required width at bottom and top of cable as cushioning including spreading leveling and consolidation complete all as specified and directed. Note : Punned thickness shall only be measured and paid.

Supply and laying in trenches un-reinforced precast concrete cable cover class HV type 2 ,flat size 300 x 180 x 40mm for cable protection complete all as specified and directed by the Engr-in-Charge.

Supply and fix HT 22 KV outdoor type gand operated polymer air-break switch suitable for horizontal or vertical mounting fixed type complete with 9 insulators of rating upto 400 Amps complete all as specified and directed by Engr-in-Charge.

supply and fix double stack channel type drop out fuse, HT 22 KV, 6 insulators complete all as specified and directed by Engr-in-charge.

Supply and fixing light class GI pipe 100 mm dia (nominal) 3 metre length along the pole for protection of underground cable as required complete all as specified and directed by Engr-in-Charge.

Cutting road of bituminous portion and making good the same including supply of extra quantities of materials i.e aggregate, moorum screening, red bajri and labour required complete all as specified and directed by Engr-in-Charge.

Material and labour for straight through joint,heat shrinkable,type,for under ground cable including joint kits and labour complete for making joints suitable for aluminium conductor cable XLPE,3 core, 120 sqmm,22 KV including taking down existing unserviceable joint complete all as specified and directed by Engineer-in-charge.

Material and labour for indoor type end termination joint, heat shrinkable, type, for under ground cable including joint kits and labour complete for making joints suitable for aluminium conductor cable XLPE, up to 3 core, 120 sqmm , 22 KV complete including taking down existing unserviceable joint all as specified and directed by Engr-in-charge.

Material and labour for replacement of outdoor type end termination joint, heat shrinkable, type, for under ground cable including joint kits and labour complete for making joints suitable for aluminium conductor cable XLPE, up to 3 core, 120 sqmm 22 KV complete including taking down existing unserviceable joint all as specified and directed by Engr-in-charge.

Supply and fix lightning arrester 18 KA station class complete all as specified and directed by Engr-in-Charge.

Supply, installation, testing and commissioning of FAST ELECTRODE maintenance free Chemical Earthing of Dual Pipe Technology of 3 Meter long with Outer pipe Diameter of 88 mm & inner pipe diameter 48 mm, the pipes outer is properly galvanized for 80-120 micron and Wall thickness of inner pipe 3.0 mm and 2.0 mm of outer pipe. There should be terminal for connection of 75 X 6.0 mm with two holes of 14mm diameter. FAST ELECTRODE is dully filled with the highly conductive material with sealing at both ends with lead terminal of 75 X 5.2 mm at top. The FAST ELECTRODE shall be duly tested & certified by CPRI (Central Power Research Institute), Govt. Of India for a minimum short circuit current of 42 kArms for 1 Second with initial pick of 88.2 kA. The Electrode is tested in MSME Govt of India. The Electrode is tested for salt spray testing as per B 117-09 for corrosion for minimum 500 hours from NABL accredited lab CHEM .T 298 /& MECH.T 299 & ISO/IEC 17025 accredited material testing lab. Supply of Fast Electrode Earth Enhancing Compound 2 Bags of 25kgs each. The chemical compound should be tested and certified by any International accredited and BIS (Bureau of Indian Standards) accredited laboratory.The testing laboratory should be ISO 9001 & ISO 14001 certified. The earth enhancing compound should be tested referring to protocol IS 1350 & IEC62321/111/54/CDV. The pH value of compound should be between 7 to 8.(i.e. basic in nature) The content of mercury (Hg) & Hexachromium should be below detection level. (i.e. Non Toxic Compound) connected to the earthing test point, fiber reinforced plastic pit not less than 300x300 mm with pit cover, including necessary returning, filling and removal of extra soil. Note: The earth resistance of eath electrode should be less than 1 Ohms. If the desired result of the resistance not obtained, the contractor shall improve the desired resistance with extra earth enhancing material by his own expense.

Supply and fixing Galvanised iron strip 32 x 6mm from earth electrode directly in ground as required complete all as specified and directed.

Supply and fixing cable route marker with 10cm x 10cm x 5mm thick GI plate with inscription there on, bolted/welded to 35mm x 35mm x 6mm angle iron, 60 cm long and fixing the same in ground as required complete all as specified and directed by Engr-in-Charge.

NATIONAL ENGINEERING CORPORATION (BID ID -3291426)

YOGESH ELECTRICALS (BID ID -3290675)

T.H.ASSOCIATES (BID ID -3289857)

Rama Electricals (BID ID -3291339)

MAYUR ELECTRIC SERVICES (BID ID -3290725)

Borole Electricals (BID ID -3290678)

Star Electrical (BID ID -3289426)

SKS Electricals (BID ID -3290928)

ASHA ASSOCIATES (BID ID -3291308)

om sai enterprises (BID ID -3290855)