REPAIRS AND MAINTENANCE OF EXTERNAL ELECTRIFICATION OF CIJW SCHOOL VAIRENGTE AND LAILAPUR UNDER GE SILCHAR

Amount

Excavation in trenches not exceeding 1.5m wide and not exceeding 1.5m in depth for foundations, manholes, etc. or for laying cables/pipes, erecting poles, etc. not exceeding 10sqm on plan and getting out in soft / loose soil complete all as specified and as directed

Returning, filling in, including, spreading, leveling, watering and well ramming in layers not exceeding 25cm deep as in any type of soil complete all as specified and as directed

Removing excavated materials to a distance not exceeding 50m and depositing where directed at a level not exceeding 1.5m above the starting point in any type of soil including spreading in low lying area and leveling complete all as specified and as directed

M&L for fine dry river sand cushioning by laying 8cm thick layer below the cable for making soft bed and 15cm above the cable and then punning down to its consolidated thickness of 18cm after the cable is laid all as specified in SSR Part-I complete all as specified and as directed Note: Only punned thickness of sand shall be considered for measurement purposes

Supply and laying burnt bricks of sub-class 'B' designation 75 laid in trenches for cable protection complete all as specified and as directed

M&L for plain cement concrete 1:3:6 (type C-2) using 40mm graded stone aggregate as in foundations, for fixing poles, stay assembly, etc. with or without champered angles and flat, splayed, rounded or mitred tops, etc. complete all as specified and as directed

M&L in repairs for cross arms, bracings, supports clamps, and back plates fabricated from structural steel section including nuts, bolts, washers, welding, bending cold or hot, drilling holes for bolts in any shape or size as indicated and inclusive of one primer coat, one under coat and one finishing coat of good quality of aluminium paint all as specified and as directed

M&L in repairs for stringing of aluminum conductor steel reinforced (ACSR), starnded 7/1.6mm, weasel type, stringing properly on insulators and binding with aluminum binding wire, jumpers, etc. complete all as specified and as directed

M&L for stay assembly and accessories as shown in electrical plate No. 1 of SSR Part-I, using stay rod of 20mm dia, stay plate 6mm thick of size 300x300mm including stay wire 7/3.15mm dia of suitable length including taking down and disposing off old stay assembly complete all as specified and as directed Note: Cost of PCC for fixing shall be deemed to be included in the quoted rate

S&F pin type, porcelain, vitreous, white, brown or green insulator including one galvanised mild steel spindle, two galvanised iron washers and one galvanised iron nut, 50mm height, 65mm dia for 550V grade complete all as specified and as directed

S&F in repairs MCCB 63A 4 Pole, 415V, adjustable type, with breaking capacity 16kA complate all as specified and as directed

S&F in repairs MCCB 100A 4 Pole, 415V, adjustable type, with breaking capacity 16kA complate all as specified and as directed

S&F in repairs MCCB 125A 4 Pole, 415V, adjustable type, with breaking capacity 16kA complate all as specified and as directed

S&F in repairs MCCB 160A 4 Pole, 415V, adjustable type, with breaking capacity 36kA complate all as specified and as directed

S&F in repairs MCCB 200A 4 Pole, 415V, adjustable type, with breaking capacity 36kA complate all as specified and as directed

S&F in repairs MCCB 250A 4 Pole, 415V, adjustable type, with breaking capacity 36kA complate all as specified and as directed

S&F ACB 4 Pole, 415V, manual drawout type with adjustable thermal and magnetic setting including taking out old unserviceable ACB and disposing off complete all as specified and directed

S&F in repairs on load change over switch 100A 4 Pole 440V 50Hz with side handle operation housed in sheet metal enclosure as per exising make and size complete all as specified and as directed

S&F in repairs on load change over switch 250A 4 Pole 440V 50Hz with side handle operation housed in sheet metal enclosure as per exising make and size complete all as specified and as directed

M&L for danger notice plates, for LT of size 250x150mm, made 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 including taking down old / damaged notice plates and disposing off complete all as specified and as directed

Supply, install, testing as per IEC 61439-I and commisioning of CPRI approved outdoor type LT feeder pillar box of suitable size, cubical floor mounted type, factory made, totally enclosed, dust ad vermin proof, made out of 3.15mm thick MS sheet powder coated both side in and out, having proper locking arrangments in both front and rear side, aluminium bus bar of 400A rating duly drilled holes for connections and mounted on epoxy based post insulators for 3 phase, 4 wire, 415V, 50Hz AC supply, including hibling, cable entry boxes, cable gland, angle iron frame (bottom portion of the panel) duly grouted in PCC foundation 1:2:4 type C1 using 20mm graded stone aggregates, housed with the following switchgears complete all as specified and as directed (a) MCCB 630A, 4 pole, 50kA, 415V - 01No (b) On-load change over 630A 4 pole - 01No (c) Voltmeter 0-500V -01No (d) Ammeter-01No (f) Phase indicator lamps (RYB) set of 3- 01set Notes: (i) Excavation for grouting in any type of soil and PCC foundation for panel shall be deemed to be included in the quoted rate (ii) The Contractor shall submit drawing of panel through the Engineer-in-charge and the same shall be as apporoved by the GE

Supply, installation, commissioning and testing LT feeder pillar box, outdoor type of size 0.6x0.6x0.45m (approx), cubical floor mounted type (IP-65 degree of protection) made out of 3mm thick MS sheet duly powder coated, with aluminium strip bus bar 200A rating duly drilled holes for connections and mounted on epoxy based post insulators for 3 phase 4 wire 415V 50Hz AC supply, including cable entry boxes, cable gland, 50x50x6mm angle iron frame (bottom portion of the panel), duly grouted in PCC foundation 1:2:4 type C1 using 20mm graded stone aggregates as permanufacturer's instructions complete all as specified and as directed

Supplying, fixing / laying steel water tubing, 40mm bore, light grade, galvanised with screwed and socketed joints, in any length, including supply and fixing all fittings, ISI marked conforming to IS -1239 and fixed to walls or laid in floors / trenches required for protection of electric clables complete all as specified and as directed

S&F standard SS first aid box of size 250x200x150mm comprising of all necessary first aid medicines and marked with 'FIRST AID BOX' complete including all necessary mounting arrangements on wall complete all as specified and as directed

Supply, fix or lay in position synthetic rubber insulated mat of size 2.0x1.0m and 25mm thick suitable for 11kV conforming to IS-15652-2006 (superseding IS-5424) complete all as specified and as directed

M&L for taking down outdoor light fittings, any type upto 70W including all necessary ladders, staging, etc. and disposing off complete all as specified and as directed

S&F LED building security light fitting 1x45W 230V AC outdoor type all accessories pre-wired including all necessary fixing arrangements to existing pole, etc. and connecting with twin core twisted flexible copper conductor cable complete all as specified and as directed

S&F LED building security light fitting 1x70W 230V AC outdoor type all accessories pre-wired including all necessary fixing arrangements to existing pole, etc. and connecting with twin core twisted flexible copper conductor cable complete all as specified and as directed

S&F 60W LED flood light with high power discrete LED, PDC housing and integral driver with IP 66 protection class, with thermal management in multiple optics, galaxy-I type having (i) CRI > 70 (ii) PF > 0.9 (iii) Lumens min 120 Lux /watt, impact and corrosion resistant, with driver and 120W LED lamp, all accessories pre-wired including connecting with twin core twisted flexible copper conductor cable with suitable size rod complete all as specified and as directed

M&L for cutting / trimming / prunning branches of trees, exceeding 1ft and not exceeding 15mm dia, falling over HT lines, cutting to make minimum distance of 2.5m from OH lines of any type span of any length in 2/4/6 way conductor system, including all neceessary safety precautions, shutting of supply, staging, barricading, roping down the cut branches, suitable cutters, etc. and disposing off the cut branches to a suitable place at a distance not exceeding 50m complete all as specified and as directed

M&L for 6mm steel wire rope ASIS 326 grade of 15m high mast lighting system including 3 core 6sqmm power cable for connecting lights and taking off old damaged rope complete all as specified and as directed

M&L for mobil and grease oil for servicing of motor, chain, pully of 15m high mast lighting system complete all as specified and as directed

M&L for mobil and grease oil for servicing of motor, chain, pully of 30m high mast lighting system complete all as specified and as directed

Supply, laying, jointing, connecting and testing XLPE insulated, screened, PVC sheathed cable 1100V grade, screwed PVC bedded, armoured electric power cable, heavy duty stranded aluminium conductor laid in trenches / fixed on walls/poles, passing through pipes, etc. including taking out / down old unserviceable cable, protection pipes, brick covers, etc. from any location and disposing off complete all as specified and as directed of the following sizes: Note: Excavation/earthwork, covers, tubing, cushioning will be measured and paid separately under respective item herein

2 core 10sqmm

4 core 10sqmm

4 core 16sqmm

3.5 core 25sqmm

3.5 core 35sqmm

3.5 core 50sqmm

3.5 core 70sqmm

3.5 core 120sqmm

3.5 core 240sqmm

M&L for cable jointing kit for 1100V grade cable for straight through heat shrink type joint with jointing material and accessories suitable for 3.5 core 25 to 50mm², XLPE insulated armoured aluminium conductor cable including taking out and disposing off old joint complete all as specified and as directed

M&L for cable jointing kit for 1100V grade cable for straight through heat shrink type joint with jointing material and accessories suitable for 3.5 core 70 to 120mm², XLPE insulated armoured aluminium conductor cable including taking out and disposing off old joint complete all as specified and as directed

S&F aluminium lug suitable for cross-sectional area 10 to 35sqmm complete all as specified and as directed

S&F aluminium lug suitable for cross-sectional area 50 to 150sqmm complete all as specified and as directed

S&F aluminium lug suitable for cross-sectional area 185 to 240sqmm complete all as specified and as directed

Supply, erect in position and fixing steel tubular swaged poles with CI base plate (300x300mm and 6mm thick), finial taper plug, pole caps, bolts, nuts and screws type 410 SP-55, 9m long, conforming to IS: 2713, with detachable bracket arms including two coats of aluminium paint over shop coat of primer at any locations including shutting of power lines, etc. taking down of old / unserviceable PCC poles and disposing and carting off complete all as specified and as directed Note: Excavation / earthwork and PCC coping etc. will be measured and paid separately under respective items herein

M&l for applying one coat aluminium paint on 9m long steel tubular pole in position after preparation of surface of steel tubler pole including all fitted cross arms, clamp, nut, bolt, etc. including painting of black and yellow stripes of 5Nos. of 30cm wide stripes or as directed on pole upto 1.5m height above coping level including numbering of size 70x40mm by using stencil on the pole with black synthetic enamel paint 1.5m above ground level complete all as specified and as directed

M&L for earthing using GI earthing wire with galvanised steel earth plate electode 600x600x6mm thick buried directly in ground, earth pit not less than 2.25m deep below ground level connection to and including GI earth lead wire 4mm dia extended to 7.5m as earth lead by means of GI bolts, nuts, etc. with provision of charcoal and salt all as per electrical plate No. 3 of SSR Part-I including water arrangement with GI pipe 20mm dia (medium grade), earth lead protection pipe 15mm light grade with bends, elbow, etc. from earth plate to test point, excavation and earthwork in any type of soil, returning, filling, ramming and removing of soil to distance not exceeding 50m, make good to match with existing surface making PCC pit (earth chamber) having internal size 300x300x300mm and outer size 600x 600x600mm with RCC reinforced cover 50mm thick and testing on completion including making test points on wall as per SSR specifications, taking down and disposing off old earthing complete all as specified and as directed

&L for earthing using GI earthing strip with galvanised steel earth plate electode 600x600x6mm thick buried directly in ground, earth pit not less than 2.25m deep below ground level connection to and including GI strip of size 25x4mm extended to 7.5m as earth lead by means of GI bolts, nuts, etc. with provision of charcoal and salt all as per electrical plate No. 3 of SSR Part-I including water arrangement with GI pipe 20mm dia (medium grade), earth lead protection pipe 50mm medium grade with bends, elbow, etc. from earth plate to test point, excavation and earthwork in any type of soil, returning, filling, ramming and removing of soil to distance not exceeding 50m, make good to match with existing surface making PCC pit (earth chamber) having internal size 300x300x300mm and outer size 600x 600x600mm with RCC reinforced cover 50mm thick and testing on completion including making test points on wall as per SSR specifications, taking down and disposing off old earthing complete all as specified and as directed

Notes for serial item Nos. 51 & 52: (i) The cost of GI earth continuity wire / strip with GI pipe 20mm medium grade upto 7.5m is deemed to be included (ii) The earth chamber to be constructed 0.5m from edge of earth pit with necessary watering arrangement. The cost for the same is deemed to be included in above item (iii) Earthing shall produce desired earth resistance values as directed by the Engineer-in-charge

M/S SANJIB DEB

M/S Manik Lal Gupta

M/S TAPAN KUMAR RAY

M/S LUIT CONSTRUCTION

M/S M P Sharma

Anup Kumar Paul Choudhury