Repair maint of external LT electric supply incl replacement of LT UG cable at Offrs MD Accn under GE Gangtok

Amount

Taking out of old Unsv LT cable from any location complete all as specified and directed by Engr in Charge.

Supply and laying light grade GI pipe (ISI Marked) as cable protection to be fixed on wall / pole with necessary clamps as per existing or in road crossing as ordered of size 80 mm bore complete all as directed. ( Note :- Unit rate quoted is deemed to be inclusive of MS clamps required to be fixed on pole).

All as per item No 02 here- in-above but for 50mm bore GI pipe light grade complete all as directed. .

All as per item No 02 here- in-above but for 40mm bore GI pipe light grade complete all as directed. .

Supply, Laying, jointing & testing 1100 volts grade, XLPE insulated, screened, PVC bedded, galvanized steel strip or wire armoured LT electric power under ground cables, heavy duty with aluminium stranded conductor laid in trenches or passing through pipe of cross sectional area 185 sqmm 3.50 core with all fixing & connecting accessories complete all as specified & as directed. Note:- (i) Earthwork & Excavation, GI pipe, DWC pipe etc shall be measured and paid separately under relevant items of this schedule. (ii) The rate quoted by the bidder shall deemed to be inclusive of the cost of aluminium thimbles/lugs of suitable sizes.

All as per item No 05 here- in-above but of size 70 Sqmm 3.5 core complete all as directed.

All as per item No 05 here- in-above but of size 35 Sqmm 4 core complete all as directed. .

All as per item No 05 here- in-above but of size 25 Sqmm 4 core complete all as directed. .

All as per item No 08 here- in-above but of size 16 Sqmm 4 core complete all as directed. .

All as per item No 08 here- in-above but of size 10 Sqmm 4 core complete all as directed. .

All as per item No 08 here- in-above but of size 10 Sqmm 2 core.

Excavation in trenches n. exc 1.5 mtr wide and n. exc 1.5 mtr in depth for laying of cable and getting out in hard /dense soil complete all as directed.

Returning filling in soft/loose soil including spreading, levelling, watering and well ramming in layers not exceeding 25cm complete all as specified and as directed

Removal of surplus excavated (soil) to a distance not exceeding 50 mtr and depositing where directed at a level not exceeding 1.50m above the starting point complete all as specified and as directed.

Supplying and laying of DWC HDPE pipe .lSI marked in trenches or in cable ducts or fixed on walls using clamps along with all accessories like socket, bend, couplers etc. conforming to IS 14930, Part II complete with fitting and cutting, jointing etc. of size 50 mm outer dia complete all as specified and as directed by the Engr-in-Charge.

Supplying and laying of DWC HDPE pipe .lSI marked in trenches or in cable ducts or fixed on walls using clamps along with all accessories like socket, bend, couplers etc. conforming to IS 14930, Part II complete with fitting and cutting, jointing etc. of 75 mm outer dia complete all as specified and as directed by the Engr-in-Charge.

Supply, installing, testing and commissioning our door type LT panel of 1500x1400x500 mm size, padestal mounted, CPRI approval factory made totally encloses, dust and vermin proof, double leaf shutter in front and single leaf shutter in rear side made of 3.15 mm thick CRCA sheet, framing with 50 x 50 x 6mm thick MS angle iron and legs of size 0.90mm long. duly fabricated and having proper locking arrangement in both front and rear door with 4 side slanting roof duly projected and painted to both internal and External surfaces with powder coating paint in heat process of sheet and suitable for 500 volts, 50 Hz, 3 phase 4 wire system and comprising with and including following accessories and mounted on PCC Plat form made out of PCC 1:3:6 100 mm thick, 1 Mtr all round the panel board complete with the following items:- INCOMING:-(a) MCCB 4 pole, 415 Volts, 25 KA breaking cap rating 250 amps, adjustable thermal and adjustable magnetic including fixing accessories - 01 No (Havells Cat No - IHLANF0250 or equivalent model of as specified.) BUSBAR:- (b) Aluminium busbar suitable for 315 Amp including insulator with nuts & bolts - 04 Nos. OUTGOING:- (c) MCCB, 415 Volts 160 Amps 4 pole 25 KA rupturing capacity adjustable thermal and fixed magnetic including fixing accessories - 01 Nos (Havells Cat No- IHLANF0160 or equivalent model of as specified.) (d) MCCB, 415 Volts 125 Amps 4 pole 25 KA rupturing capacity adjustable thermal and fixed magnetic including fixing accessories - 01 Nos (Havells CAT no. IHLANF0125 or equivalent model of as specified.) (e) MCCB, 415 Volts 100 Amps 4 pole 25 KA rupturing capacity adjustable thermal and fixed magnetic including fixing accessories - 01 Nos (Havells Cat No. IHLANF0100 or equivalent model of as specified.) (f) MCCB, 415 Volts 63 Amps 4 pole 25 KA rupturing capacity adjustable thermal and fixed magnetic including fixing accessories - 02 Nos (Hav Cat No - IHLASF0063 or equivalent model of as specified.) (g)Analog time switch 3 Module of L&T Cat No AUTS03ANA00 with four pole power contactor of capacity 63 Amps, 4 pole of Havells Cat No - IHPAC065500 - 01 Nos or equivalent model of as specified. (h) CT of ratio 400/5 (j) Led indicator lamp with holder = 03 Nos (k) Multifunctioning meter with necessary CTs

S&F loop in-loop junction box of internal dimension 155x210x92mm made out of polycarbonate and locking arrangement incl 6 amps MB-1 No, 20 Amps rated 4 way connectors for 3 phase and neutral incoming/out going, mounted in the box, fixing on steel tubular poles including necessary clamps, suitable glands, lugs and GI nut and bolts inlcuidng taking down old unserviceable junction box complete all as specified and as directed. Make : Hensel Cat No. : KF 1616 G or Sintex/OBO.

S&F MCCB 100 Amps, 4 pole, 16 KA, Ics=100%(Icu), 415 Volts 50 Hz, AC, suitable for existing LT panel/feeder pillar including taking out old existing unserviceable MCCB from panels etc complete all as specified and as directed. (Make : Cat Part No. Havells Cat No. IHLANF0100 or equivalent approved).

M&L for Earthing complete in repairs with Advance encapsulated compound based CPRI tested maintenance free, pipe-in-pipe technology upgraded (Zinc & Alloy Coated), ZINC COATED (80-100) microns with pure Zinc(99.9%) & ALLOY COATING (200-250)microns. Earthing System confirming IS 3043.The outer and inner pipe should be 48.3mm &26.4mm 2mtrs Length, Zinc coated with additional special Alloy coating 300mm on the topside for additional protection of the Terminal. The annular space between the pipes being filled up with COMPACT FILL(CF) (Crystalline Conductive Compound). The COMPACT FILL (CF) mixture which is machine pressed inthe pipes should not disintegrate or collapse when outer pipe corrodes. The inner pipe should be extended with terminals for connectivity ,The job includes digging the pits and refilling the same by BARONS Electrodite OR Conductolite Back Fill compound (Ground Enhancer), the BFC should be eco friendly it should not contain environmentally hazardous material/metal having ROHS Certification from NABL accredited lab. The earth pit should be provided with a FRP OR EPCC earth pit cover for protection and safe guard of terminals. In areas where soil condition is bad, GOOD EARTH ie BLACK COTTON OR MOISTUROUS NORMAL SOIL is to be arranged to fill the excavated pits by mixing the arranged soil with BFC 2 TO 4 bags ELECTRODITE 0R 2-4 BAGS CONDUCTILITE BFC FOR INSTALLATION OF EARTH ELECTRODE. The electrode should be of galvinised (80-100 micron) along with earth lead as Galvanised steel strip of size 32 X6 mm, 7.5 m. including excavation earthwork etc connected to electrical eqpts/panels and testing on completion all as specified and directed by Engineer in charge.

Supply, installation, testing and commissioning factory made LT feeder pillar box (KIOSK) in repairs outdoor type platform mounted, CPRI approved suitable for 415 volts 3 phase 4 wire, 50 Hz AC supply system all as specified and directed having busbar installed on DMC/Epoxy insulators. The panel shall be dust and vermin proof, IP-65 class protection and made of 3.15 CRCA steel sheet with double door shutter and locking arrangement, openable from front & back both including powder coated on both outer and inner surfaces of panel. The TPN aluminium bus bar not less than the 1.5 times the rated capacity of the incommer MCCB including 50x50x6mm thick angle iron frame work upto height of 0.9mtr above ground level (duly painted with synthetic enamel paint over a coat of red oxide primer on exposed surfaces) with and including following spares and including dismantling of old unserviceable existing feeder pillar box complete all as specified and as directed. (a) MCCB 4 pole, 25 KA 100 Amp-01 No (Incommer) (Havells CAT No. IHLANF0100) (b) MCCB 4 pole, 25 KA 63 Amp-03 Nos (Outgoing) (Havells CAT No. IHLASF0063) (c) Phase indicating lamps (R-Y-B) - 01 Set (d) Multifunctioning meter with necessary CTs

Supply & fixing 1.5 Sq.mm 3 core, 240volts Copper Conductor cable heavy duty PVC insulated, round sheathed ISI marked in PVC conduit all as specified and directed by Engr In charge

M&L for Plain cement concrete (1:3:6) type C-1 using 20 mm graded stone aggregates as finishing road/concrete surface / coping of poles including finishing to exposed concrete surfaces even and fair complete all as specified.

S&F in repairs busbar chambers 4 way 100 Amps outdoor type (IP65/66) pole/wall mounted including provision of fixing on pole by means of suitable size of clamps with nuts and bolts including necessary connection including taking down old unserviceable one complete all as specified and as directed. Make : Havells Cat Part No. IHBC010004 or equivalent approved make.

ENGINEERING AND CONSTRUCTION CO.