REPAIR/MAINTENANCE OF EXTERNAL ELECTRIFICATION (LT), FEEDER PILLAR, LT PANELS AND OTHER ALLIED WORKS AT BASISTHA AREA UNDER GE GUWAHATI

Amount

Excavation in trenches not exceding 1.5m wide and not exceding 1.5m in depth and getting out in soft/ loose soil complete all as specified and directed.

Returning, filling in, including spreading, leveling, watering and well ramming in layers not exceding 25 cm with excavated soft/loose soil complete all as specified and directed.

Removing excavated material n exc. 50m and depositing where directed at a level not exceding 1.5m above the starting point complete all as specified and as directed.

M&L Hard surface cutting as in road pavement etc for laying of cables, pipes etc of approximate width of 45cm and depth 60cm and complete excavated trench filled with PCC 1:3:6 type C-2 including removing of excavated material not exc 50m complete all as specified and directed.

Making hole (Horizontal drilling) by suitable means for insertion of GI pipe of 80mm bore for passing cable across the road (without cutting the road) complete all as specified and directed.

Making hole (Horizontal drilling) by suitable means for insertion of GI pipe of 50mm bore for passing cable across the road (without cutting the road) complete all as specified and directed.

Taking up/down LT cable of any size and description including protection pipe, bricks etc, keeping serviceable materials separately for reuse at site and removing unserviceable materials from site complete all as specified and directed.

Supplying, laying, commissioning & testing LT underground cable 1100 volts grade of size 120 Sqmm 3.5 core , XLPE insulated, PVC sheathed heavy duty, armoured with multi-stranded aluminium conductor all as per IS 7098 (Part-I) 1998, laid in trenches, ducts, pipes, or on poles, etc. complete all as specified and as directed .

Supplying, laying, commissioning & testing LT underground cable 1100 volts grade of size 150Sqmm 3.5 core , XLPE insulated, PVC sheathed heavy duty, armoured with multi-stranded aluminium conductor all as per IS 7098 (Part-I) 1998, laid in trenches, ducts, pipes, or on poles, etc. complete all as specified and as directed .

Supplying, laying, commissioning & testing LT underground cable 1100 volts grade of size 185Sqmm 3.5 core , XLPE insulated, PVC sheathed heavy duty, armoured with multi-stranded aluminium conductor all as per IS 7098 (Part-I) 1998, laid in trenches, ducts, pipes, or on poles, etc. complete all as specified and as directed .

Supplying, laying, commissioning & testing LT underground cable 1100 volts grade of size 240Sqmm 3.5 core , XLPE insulated, PVC sheathed heavy duty, armoured with multi-stranded aluminium conductor all as per IS 7098 (Part-I) 1998, laid in trenches, ducts, pipes, or on poles, etc. complete all as specified and as directed .

Supplying, laying, commissioning & testing LT underground cable 1100 volts grade of size 300Sqmm 3.5 core , XLPE insulated, PVC sheathed heavy duty, armoured with multi-stranded aluminium conductor all as per IS 7098 (Part-I) 1998, laid in trenches, ducts, pipes, or on poles, etc. complete all as specified and as directed .

Laying only, commissioning & testing, LT underground cable 1100 volts grade of size 185 Sqmm 3.5 core in trenches, ducts, pipes, or on poles, etc. complete all as specified and as directed. Note:- Cable shall be issued under schedule 'B', free for fixing/laying only.

Laying only, commissioning & testing, LT underground cable 1100 volts grade of size 150 Sqmm 3.5 core in trenches, ducts, pipes, or on poles, etc. complete all as specified and as directed. Note:- Cable shall be issued under schedule 'B', free for fixing/laying only.

Laying only, commissioning & testing, LT underground cable 1100 volts grade of size 70 Sqmm 3.5 core in trenches, ducts, pipes, or on poles, etc. complete all as specified and as directed. Note:- Cable shall be issued under schedule 'B', free for fixing/laying only.

Laying only, commissioning & testing, serviceable LT underground cable 1100 volts grade of size 10sqmm to 50Sqmm 2/3.5/4 core, in trenches, ducts, pipes, or on poles, etc complete all as specified and as directed. Note:- Cable shall be issued under schedule 'B', free for fixing/laying only.

Supply, jointing and testing LT UG cable jointing kit for XLPE/ PVC insulated 1100 V grade, 400 Sqmm , 3½ core aluminium conductor cable for straight through heat shrink type complete with jointing material and accessories complete all as specified and directed.

Supply, jointing and testing LT UG cable jointing kit for XLPE/ PVC insulated 1100 V grade, 120sqmm to 300 Sqmm , 3½ core aluminium conductor cable for straight through heat shrink type complete with jointing material and accessories complete all as specified and directed.

Supply, jointing and testing LT UG cable jointing kit for XLPE/ PVC insulated 1100 V grade, 95 Sqmm , 3½ core aluminium conductor cable for straight through heat shrink type complete with jointing material and accessories complete all as specified and directed.

Supply, jointing and testing LT UG cable jointing kit for XLPE/ PVC insulated 1100 V grade, 35sqmm to 70 Sqmm , 3½ core aluminium conductor cable for straight through heat shrink type complete with jointing material and accessories complete all as specified and directed.

Supply, jointing and testing LT UG cable jointing kit for XLPE/ PVC insulated 1100 V grade, 150sqmm to 300 Sqmm , 3½ core aluminium conductor cable for outdoor / indoor end termination heat shrink type complete with jointing material and accessories complete all as specified and directed.

Supply, jointing and testing LT UG cable jointing kit for XLPE/ PVC insulated 1100 V grade, 95 Sqmm , 3½ core aluminium conductor cable for outdoor/ indoor end termination heat shrink type complete with jointing material and accessories complete all as specified and directed.

M&L for brick protection cover to underground cable with sub-class ‘B’ old size over burnt bricks laid dry and flat across the axis of cable, abutting each other with gaps between adjacent bricks not exceeding 10mm complete all as specified & directed.

Laying only, serviceable bricks as protection cover to underground cable laid dry and flat across the axis of cable, abutting each other with gaps between adjacent bricks not exceeding 10mm complete all as specified & as directed. Note - Serviceable bricks obtained from taking down shall be reused.

M&L for sand cushioning to underground cable in trenches with clean dry (course) sand including filling, spreading and punning to desired thickness for protection of cable complete all as specified and directed.( Punned thickness will be measured).

S&F in repair 80 mm dia GI pipe ‘light grade’ with all fittings for protection of cable laid in trenches, road crossing, drain crossing, under floor or fixed to iron structures/poles complete all as specified and directed.

S&Fin repair 50 mm dia GI pipe ‘light grade’ with all fittings for protection of cable laid in trenches, road crossing, drain crossing, under floor or fixed to iron structures/poles complete all as specified and directed.

S&Fin repair 40 mm dia GI pipe ‘light grade’ with all fittings for protection of cable laid in trenches, road crossing, drain crossing, under floor or fixed to iron structures/poles complete all as specified and directed.

Supply, errecting, and fixing steel tubular swaged pole 9.00m long Type -410 SP-31 conforming to IS-2713 part I to III 1980 with and including cast iron base plate, finial taper plug,nuts, bolts and washers etc. and fixed into plain cement concrete foundation duely painted with two coats of aluminium paint over one coat of red oxide primer including preparetion of surfaces and making strip 150mm wide upto 1.50m( above PCC coping) by black , yellow paint in alternate layers and pole nos. including dismantling of old poles of any description including demolition of concrete foundation complete all as specified and directed. NOTE: Earth work, cement concrete will be measured and paid seperately.

M & L for plain cement concrete (1:3:6) type C2 (using 40mm graded stone aggregate) for foundation of poles, Stay assembly, struts, etc. including all necessary formwork complete all as specified & as directed.

S & F in repair Disc type insulator, porcelain, vitreous 145mm high and 255mm dia ball and socket type, white, brown or green, Two in series disc assembly for tension with tension clamps for conductors, working pressure 11000 volts grade complete all as specified and directed.

S & F in repair Pin type, porcelain, vitreous, white, brown or green insulator including one galvanised mild steel spindle, two galvanised iron washers and one galvanised iron nut, 100 mm height, 65 mm dia for 1100 volts grade complete all as specified and directed.

S & F in repair Pin type, porcelain, vitreous, white, brown or green insulator including one galvanised mild steel spindle, two galvanised iron washers and one galvanised iron nut, 150mm height, 150mm dia for 11000 volts grade complete all as specified and directed.

S & F in repair shackle type, porcelain, vitreous, white brown or green insulator of size 75mm high and 90mm dia including galvanized mild steel straps of section 31mm x 3 mm, 12mm dia insulator bolts, nuts, washer etc for working presser 1100 volts complete all as specified and as directed.

M & L for stay assembly complete with all accessories such as mild steel galvanized flat iron stay clamp, 7/3.15 mild steel galvanized stay strand/ wire, one loop type porcelain vitreous insulator (white, brown or green) overall dimensions 90 X 140 mm & clearance of hole 25.5 mm, stay grips, mild steel galvanized stay bow, thimbles, 20 mm dia mild steel galvanized stay rod and mild steel galvanized stay-plate all as shown in electrical plate No 1 of SSR Part-I including dismantling of old stay assembly complete all as specified and as directed. [Note: (i) Excavation & earthwork, cement concrete, etc. will be measured and paid separately under relevant Items of this Schedule.

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

M & L for plain cement concrete (1:2:4) type B1 (using 20 mm graded stone aggregate)as in coping of poles including all necessary formwork complete all as specified & as directed.

M & L for Cross arms, bracings, supports, clamps and back plates fabricated from structural steel sections including nuts, bolts, washers, welding, bending cold or hot, drilling holes for bolts, in any shape or size as indicated or directed including two coats of aluminium paint over a coat of red oxide zinc chrome primer including preparation of surfaces including dismantling of old cross arms complete all as specified & as directed.

M&L for danger notice plate of 1.6mm thick mild steel sheet, vitreous enamelled white, with letters, figures and conventional skull and bones in signal red colour and fixed with MS clamps, bolts and nuts of approved size, for HT, 25 x 20 cm size including taking down old plate complete all as specified and directed.

M&L for danger notice plate of 1.6mm thick mild steel sheet, vitreous enamelled white, with letters, figures and conventional skull and bones in signal red colour and fixed with MS clamps, bolts and nuts of approved size, for LT, 20 x 15 cm size including taking down old plate complete all as specified and directed.

S&F, in repair, MCCB 630 Amps, 415 Volt, 36 KA, 4 pole electronic / micro-processor range complete all as specified and directed. Make: Indoasian, Cat No : 830513 or equivalent as approved by GE from list of approved makes.

S&F, in repair, MCCB 400 Amps, 415 Volt, 36 KA, 4 pole adjustable thermal & fixed magnetic trip setting unit complete all as specified and directed. Make: Indoasian, Cat No : 830396 or equivalent as approved by GE from list of approved makes.

S&F, in repair, MCCB 250 Amps, 415 Volt, 25 KA, 4 pole with fixed thermal & fixed magnetic trip setting unit complete all as specified and directed. Make: Indoasian, Cat No : 830297 or equivalent as approved by GE from list of approved makes.

S&F, in repair, MCCB 160 Amps, 415 Volt, 25 KA, 4 pole with fixed thermal & fixed magnetic trip setting unit complete all as specified and directed. Make: Indoasian, Cat No : 830295 or equivalent as approved by GE from list of approved makes.

S&F, in repair, MCCB 125 Amps, 415 Volt, 25 KA, 4 pole with fixed thermal & fixed magnetic trip setting unit complete all as specified and directed. Make: Indoasian, Cat No : 830273 or equivalent as approved by GE from list of approved makes.

S&F, in repair, MCCB 100 Amps, 415 Volt, 25 KA, 4 pole with fixed thermal & fixed magnetic trip setting unit complete all as specified and directed. Make: Indoasian, Cat No : 830272 or equivalent as approved by GE from list of approved makes.

S&F, in repair, open execution cubical type panel mounted front operated on-load changeover switch of capacity 400 Amps 415 volts, 4 pole including neccessary electric connection with suitable size aluminium lugs complete all as specified and directed. Make: HAVELLS, Cat No IHCNFO0400 or equivalent as approved by GE from list of approved makes.

S&F, in repair, power Contactor 3-Pole of cap 315A with AC coil, duty rating at 415V, 50 Hz complete all as specified and directed. Make: HAVELLS, Cat No IHPHA225600 or equivalent as approved by GE from list of approved makes.

S&F, in repair, HBC Fuse Link of cap 315A having rated voltage AC 415V and having breaking cap 80 kA, conforms to IS:13703-1 & 2-1 complete all as specified and directed. Make: HAVELLS, Cat No IHHCD02315 or equivalent as approved by GE from list of approved makes.

Supplying, installing, commissioning and tasting in repair factory made outdoor type LT Kiosk box with canopy of size 1000mmx600mmx450mm with 4 nos 300 Amps aluminium busbar and 4 nos aluminium legs of size 40mmx40mmx5mm of length 75 mm made out of 3.15mm thick CRCA sheet duely powder coated and locking arrangement including grouting in PCC 1:3:6 type C-1 complete all as specified and directed.

S&F, in repair, Galvanised steel continuous earth wire 3.15 mm or 4mm dia complete all as specified and directed.

M&L for switches air break, gang operated, triple pole, 11000 Volts grade and current rating upto 200 Amps, mechanically operated, having 3 Nos 11KV post insulator per phase, mounted on insulator and steel frame with operating mechanism worked from ground level and the complete equipment shall be confirming to IS 9921 (Part I to V) with complete set of drop out expulsion fuse assembly single pole (two post insulators per pole) including necessary connection providing ACSR conductor of suitable size including dismantling the old unserviceable one complete all as specified and as directed.

M&L for HT drop out expulsion fuse unit suitable for upto 25 Amps Capacity at 11 KV, single pole (two post insulators per pole) with HT barrel fuse with holder including necessary connection to ACSR conductor of suitable size including dismantling of old expulsion fuse complete all as specified and as directed.

S&F, in repair, lightning arrestors expulsion type with all fittings, transmission class , discharge capacity 65 kilo amps suitable for 11000 volts complete including dismantling of old ligthning arrestors of any description all as specified and directed.

M & L for aluminium conductor, steel reinforced (ACSR) of any size as approved on HT/LT Poles including straining, binding to insulators with aluminium binding wire with connectors, etc, providing PVC sleeves for jumpers as in OH conductors including dismantling of old ACSR conductors of any size and description from pole complete all as specified and as directed.

S&F, in repair, test point terminal block made of gun metal or phosphorus bronze of size 75x75x25mm drilled and screwed including 3 nos 8mm dia 25mm long hexagonal headed screws complete all as specified and directed.

S&F, in repair, galvanised iron strip of size 32x6mm complete all as specified and directed.

S&F, in repair, galvanised iron strip of size 25x4mm complete all as specified and directed.

Supply, install, test and commission LT Panel board, TPN 415 Volts, 50 Hz, out door cubical type floor mounted CPRI approved factory made, double door dust and vermin proof IP-54, fabricated out of CRCA sheet not less than 3.15 mm thick with 2mm thick for internal compartment duly powder coated fixed on angle iron pedestal made out of 50x50x6 mm with cable chamber for individual feeders for incomming and outgoing connections, one set of LED indicator lamp RYB with switch and fuse and the panel board shall be provided with proper ventillation including suitable size of cable alley aluminium bus bar suitable for carrying of current 630 Amps with suitable connections from MCCB out going to main bus bar shall be carried out with TPN aluminium bus bars of suitable rating and connections from main bus bar to out going MCCB's (intake point) will be carried out with TPN aluminium bus bar as per MCCB rating duly insulated and colour coded heat shrinkable sleeve and shall be rigidly mounted on suitable size of bridge insulator including necessary PCC foundation of minimum 0.35 m height positioned and fixed with suitable nut, bolts, washers etc to the MC pedestal all as specified and directed comprising of the following :-

(a) MCCB 400 Amps 4 Pole 50 Hz 415 V with thermal magnectic release having rupturing capacity 36 KA - 1Nos (Incoming).

(b) MCCB 250 Amps 4 Pole 50 Hz 415 V with thermal magnectic release having rupturing capacity 25 KA - 2Nos (Outgoing).

(c) MCCB 160 Amps 4 Pole 50 Hz 415 V with thermal magnectic release having rupturing capacity 25 KA - 1No (Outgoing).

(d) 3Ph digital multi function meter model A, class 1, 5A with relay Vega Series - 1Nos

(e) Indicating lamp 240 volts LED type - set of three.

Supply, install, test and commission LT Panel board, TPN 415 Volts, 50 Hz, out door cubical type floor mounted CPRI approved factory made, double door dust and vermin proof IP-54, fabricated out of CRCA sheet not less than 3.15 mm thick with 2mm thick for internal compartment duly powder coated fixed on angle iron pedestal made out of 50x50x6 mm with cable chamber for individual feeders for incomming and outgoing connections, one set of LED indicator lamp RYB with switch and fuse and the panel board shall be provided with proper ventillation including suitable size of cable alley aluminium bus bar suitable for carrying of current 400 Amps with suitable connections from MCCB out going to main bus bar shall be carried out with TPN aluminium bus bars of suitable rating and connections from main bus bar to out going MCCB's (intake point) will be carried out with TPN aluminium bus bar as per MCCB rating duly insulated and colour coded heat shrinkable sleeve and shall be rigidly mounted on suitable size of bridge insulator including necessary PCC foundation of minimum 0.35 m height positioned and fixed with suitable nut, bolts, washers etc to the MC pedestal all as specified and directed comprising of the following :-

(a) MCCB 315 Amps 4 Pole 50 Hz 415 V with thermal magnectic release having rupturing capacity 36 KA - 1Nos (Incoming).

(b) MCCB 200 Amps 4 Pole 50 Hz 415 V with thermal magnectic release having rupturing capacity 25 KA - 2Nos (Outgoing).

(c) MCCB 160 Amps 4 Pole 50 Hz 415 V with thermal magnectic release having rupturing capacity 25 KA - 1No (Outgoing).

(d) 3Ph digital multi function meter model A, class 1, 5A with relay Vega Series - 1Nos

(e) Indicating lamp 240 volts LED type - set of three.

MAC ENGINEERS

M/S SEWAK SINGH