81749 REPAIR/ REPLACEMENT OF CABLES WITH ACCESSORIES FOR RESTORATION OF DAMAGE HT RING CIRCUIT AND CABLE JOINTS REFURBISHMENT AT NDA KHADAKWASLA UNDER GE (NDA) KHADAKWASLA

Amount

Excavation in trenches not exc. 1.5m wide and not exc. 1.5m in depth for foundation etc or for shafts, wells, cesspits, manholes pier holes etc not exc. 10sqm on plan and not exc 1.5m in depth and getting out in hard/dense soil complete all as specified and directed by Engineer-in-Charge.

Returning filling in soil and including spreading, leveling, watering and well ramming in layers not exc. 25 cm thick complete all as specified and directed by Engineer-in-Charge.

Removing excavated soil to a distance n.exc. 50 mtr and depositing where directed at a level not exc. 1.5m above the starting points complete all as specified and directed by Engineer-in-Charge.

Supply and laying 160 mm outer dia and 135 mm inner dia, double walled corrugated (DWC) HDPE duct pipe confirming to IS-16205 Pt-24 with antirodent and non flame propogating properties of approved colour complete with fittings i.e.coupler,Tee, elbow clamp for HT cable protection of size up to 120 Sqmm 3 core complete all as specified and directed by Engr-In-Charge. .

Disconnecting and taking out unserviceable / serviceable HT cables from excavated trenches, ducts, wall, pole etc including removing cable covers, sand, cable joints, pipes, clamps etc, taking out old serviceable cables for reuse and removing unserviceable cables, covers etc, for the sizes of cables 120 Sqmm all as directed by Engr-in- charge.

S&F of XLPE insulated, screened, PVC bedded, galvanised steel strip or wire armoured, electric power cables (heavy duty) with aluminium conductor, HT 11000 volts, grade cross sectional area 120 sqmm 3 core of size cable in trenches/fixed to poles/wall, complete all as specified and directed by Engr-in-Charge. (Note : Excavation, earthwork, cable joints, sand cushioning & cable cover will be measured and paid separately where ever required)

Laying only serviceable HT 11 KV 3 core 120 Sqmm cable in trenches/fixed to poles/wall, XLPE insulated, screened, PVC bedded, galvanised steel strip or wire armoured, electric power cable( HT ), heavy duty with aluminium conductor, 11000 volts (earthed) grade cable all as specified and directed by Engineer Incharge. Note: Serviceable cable obtain from BOQ item No 5 will be used.

S&F in replacement of GI tubing 100 mm bore light grade for encasing cables for support of cable, fixed on walls/on pole GODs by means of MS clamps with necessary bolts, nuts and washers complete all as specified and as directed by Engineer Incharge.

S & F synthetic insulating mat 2.5 mm thick of size 2m x 1m for voltage upto 3.3 kv for electrical purpose as per IS 15652-2006, (superseding IS-5424) suitable for electrical shock safety complete all as specified and as directed by Engr-in-Charge.

S&F in replacement of electrical insulating Mat (electromat) Class C, CPRI approved, as per IS-15652 ; 2006, size 1 Mtr x 2 Mtr, thickness 2.5 to 3 mm for system voltage 11 KV Min colour blue, Finish one side plain/one side patterned (Anti skid design), having tensile strength of 15N/mm, insulation resistance with water 1000000 m ohm (min), leakage current ; 10 mA (Max) flame retardant, No effect of Trasformer oil , Acid, Diesel, Alkali complete all as directed by Engineer in Charge.

S&F in replacement Cable jointing kit for 11 KV (Earthed) grade cable for Straight through heat shrinkable type joint complete with jointing material and accessories suitable for 3 core XLPE armoured aluminium conductor cable of size up to 120 Sqmm 3 core complete all as specified and as directed by Engineer Incharge.

S&F in replacement Cable jointing kit for 11 KV (Earthed) grade cable for indoor termination heat shrink type joint complete with jointing material and accessories suitable for XLPE armoured aluminium conductor cable of size 120 Sqmm 3 core complete all as specified and as directed by Engineer Incharge.

M&L for route tracing of 11 KV HT UG cables, laid under ground/road from one end to another end (Distance not more than 1500 mtrs) of 120 Sqmm 3 core, XLPE insulated cable by HT UG cable route tracing machine complete all as specified and as directed by Engineer Incharge. NOTE : (i) Disconnection of cable from both side of Transformer/VCB/HT Busbar/GOD etc and reconnection the same cable after tracing fault/jointing work according to existing system or as directed at site is deemed to be included in the cost of work and nothing extra on this account admissible on this account. (ii) Job will be measured after tracing the route.

M&L for End Jointing Kit for 11 KV HT (Earthed) grade power cable for OUTDOOR termination heat shrinkable type joint complete with jointing material and accessories suitable for 3 Core 120 Sqmm (Earthed), XLPE armoured aluminium conductor cable complete all as specified and as directed by Engineer Incharge.

M&L for 3 core 120 Sqmm, 11 KV HT UG Cable fault testing from one End termination to another End termination (distance not more than 1500 mtrs) and identifying the fault location complete all as specified and as directed. NOTE :- (i) Disconnection of cable from both side of Transformer/VCB/HT Busbar/GOD etc and reconnection the same cable after tracing fault/jointing work according to existing system or as directed at site is deemed to be included in the cost of work and nothing extra on this account admissible on this account. (ii) Job will be measured after finding out the fault.

M&L for Road Cutting Size (0.50 x 0.90) mm (W x D) as required for laying power cable etc including earthwork and excavation in bitumen road including making good the surface with bitumenous material) to match with the existing finish road surface complete all as specified and as directed by Engineer-in-charge.

M&L for Earthing complete with galvanised steel earth plate electrode 600 x 600 x 6.0 mm thick, burried vertically in ground (Earth pit not less than 2.25 metres deep below normal ground level and top edge of the plate not less than 1.5 m below ground level), connected to and including GI strip 32x6 mm upto 7.5m legth as earthing lead by means of bolts, nuts & checknuts and washers of galvanized iron or steel drawn through GI pipe 40 mm dia medium grade pipe for protection of G.I earth strip, both to be provided to the extent of 7.5 metres, all as shown on electrical plate No 3 of MES SSR-Part-I (2009) , other end connected to electrical main switch board (inside the bldg) GI protection pipe 20mm dia buried in ground, laid under floors/plinths or fixed on walls or concealed in walls etc; with provision of mixture of charcoal dust & common salt packed upto minimum 150 mm all around the earth plate, including PCC (1:2:4) type B-1 earth pit with precast RCC type B1 (1:2:4) cover with handle, with G.I. 20 mm dia medium grade pipe for watering and M.S funnel with wire mesh for watering arrangement, including necessary excavation and earth work in any type of strata & testing on completion complete all as specified and as directed by Engineer-in-charge.

M&L for Earth continuty conductor fixed on walls or batten or recess or chases or buried in ground or drawn in conduit/pipe or fixed to poles or any other indicated situation for loop earthing etc. as required of size 32 x 6 mm galvanised iron strip all as specified and as directed.

S & F of 11 KV HT Bus Bar Panel weather proof outdoor type single door, fabricated out of 3.15mm thick CRCA sheet with epoxy powder coating of Post Office Red Colour shade with matt finish with seven tank pre treatment process. The panel shall be fabricated by CPRI approved manufacturer only. The panel shall be design totally enclosed, dust and vermin proof, conforming to degree of protection IP-54, openable locking arrangement for front and back side also, comprising of gaskets between all adjacent units and beneath all covers shall be fully gasketed with neoprene rubber. The panel shall be provided with Aluminium bus bars Suitable for 400 Amps 11 KV HT, electrolytic grade of adequate rating. The bus bars shall be supported on unbreakable, non-hygroscopic SMC insulated supports at sufficiently close intervals to prevent busbars sag and shall be housed in dedicated compartment in vertical position. The panel shall be provided with manufacturer's name plate, skull & bones danger notice board etc.

Ser. Item No. 19 Contd.... The panel shall be provided 4 Nos 50x50x5 mm thick angle iron supports of not less than each 1.0 mtr height duly painted with anti corrosive black paint and grouted in PCC 1:3:6 (Type C2) at suitable depth as per site requirement . The overall size of the panel shall not less than 1000mmX600mmX1250mm (LxBxH). The panel shall be provided with 2 Nos of Earting Terminals one on each side of the Panel with earth strip, 04 Nos of entry holes for cables from bottom side 95/120 Sqmm 3 Core cable size and each bus bar shall be arranged to connect 04 Nos of cable including nut, bolts and washers etc. Complete all as specified and as directed by Engr-in-charge.

M & L for erection of Precast HT cable route / cable path indicator,made out of PCC 1:2:4 ,type B0,12.5 mm graded stone aggregates of size 80 Cm (Height) x 18 Cm (Width) x 8 Cm (Thichness), painted with post office red colour lettering in synthetic paint and letters 4 inch with words "DANGER,HT 11 KV CABLE" to be written in black colour lettering in synthetic paint and embedded in PCC 1:3:6 type C2 (using 40mm graded aggregate) including necessary excavation and earthwork in any type of strata for erection of PCC block 30 cm below GL and placed at interval of every 30 Mtr complete all as specified and as directed by Engr-in-Charge.

J B ELECTRICALS

Tejas Enterprises

CHAITANYA WINDWELL

TIMES HYDRO-ELECTRIC COMPANY