REPAIR/MAINTENANCE OF EXTERNAL ELECTRIC SUPPLY LT OVER HEAD LINE, LT UG CABLE, LT DISTRIBUTION NETWORK SYSTEM INCL CONNECTED ITEMS AND ALLIED WORKS FOR ZONE-7,8 AND 9 AT NAA UNDER GE (N) TAZPUR

Amount

Dismantling concrete poles/ struts, any size, setting aside for reuse within 50 metres complete all as specified and as directed.

Dismantling cross-arms of mild steel channel or angle sections etc. complete and setting aside by diconnecting all electrical connections for re-use or removing to store or for schedule of credit all as directed by Engr-in-Charge

Dismantling HT/LT insulators any type, any size by diconnecting all electrical connections complete all as specified and as directed.

Dismantling ACSR or AAC conductors from HT oh lines/structures and removing to store or taken on schedule of credit complete all as specified and as directed.

Dismantling stay assembly complete (Note: Demolition of concrete, etc. and excavation measured shall be measured and paid separately separately.)

Dismantling earth wire or copper conductor, service feeder or distributor span removing to store or taken on schedule of credit complete all as specified and as directed.

M & L for cross arms, bracings, supports, clamps, back plates and stay clamp 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 and applying two coats of aluminium paint over a coat of red oxide primer complete all as specified and as directed.

Fixing only 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 and applying two coats of aluminium paint over a coat of red oxide primer complete all as specified and as directed.

Supply, fixing and stringing ACSR (aluminium conductor galvanized steel-reinforced) of any size and type in accordance with site requirement and binding on insulator by means of 22 gauge aluminium binding wire to permissible sag including taking down complete all as specified and as directed.

Supply & fixing in replacemet Erecting Steel Tubular Swaged Pole Type 410-SP-31 (9.0 mtrs long) including Cast Iron Base Plate, Finial Taper Plug, Cap, Mild Steel Bolts, Nuts, Screws including applying two coats of Black Bituminous paint from bottom End of Pole upto PCC Coping and applying with two coats of Aluminium Paint over a coat of Primer (Externally from Top of Coping), including necessary earth work, excavation, PCC 1:3:6 using 40mm graded sone aggregate for foundation and coping with PCC 1:2:4 using 20mm stone aggregate and smooth finish complete all as specified and as directed. (Make : Calcutta poles & tubes or equivalent in jindal steel/national tubing co)

Restringing of LT overhead lines comprising ACSR conductors of any size from 04 conductors to 07 conductors after opening from insulators, including restringing same and winding on insulator with proper size of binding wire upto permissible sag complete all as specified and directed.

Restringing of LT overhead lines comprising ACSR conductors of any size From 08 conductors to 10 conductors after opening from insulators, including restringing same and winding on insulator with proper size of binding wire upto permissible sag complete all as specified and directed.

S&F (in repairs) guarding Cradles, hexagonal/ rectangular,fabricated with galvanised steel wire 4 mm dia on LT pole including binding with 14SWG MS wire complete all as specified and directed.

M&L in replacement of pin Insulators Porcelain vitreous white or green including Galvanized mild steel spindle, two GI washers and one GI nut 100 mm height, 65 mm dia for 1100 volts grade complete all as specified and directed.

S & F in repair shackle type porcelain vitreous white brown or green insulator for working pressure 1100 volts of 115 mm dia and 100 mm height including galvanised steel straps of 31 mm X 5 mm size insulator bolt, washer & nuts complete all as specified and as directed.

M & L in repairs stay assembly in replacement comprising of 7/2.24mm galvanised MS stranded wire of required length fixed to pole with and including flat iron clamps fabricated out of 50 x 6mm flat iron and nuts, bolts and washers of suitable size, 40 cm long 14 mm dia galvanised MS stay bow, 215 cms long 20 mm dia stay rod threaded end with nuts and washers, MS stay plate galvanised 230 x 230 x 6mm, two thimble, loop insulators of size 65 x 90mm, clearance dia of hole 20 mm including excavation ,earth work & PCC (1:4:8) type D2 using 40mm stone aggregate complete all as specified and as directed.

Supplying and fixing PVC insulated cable for working voltages of 1100 V, PVC sheathed, unarmoured, 2 core, flat or circular nominal cross sectional area of main conductor 10 sqmm, solid aluminium conductor, ISI marked as per IS 1554(Part-I): 1988 including cable glands, lugs etc. to suit the cable in service connections suspended by insulating hangers not more than 1 metre apart including 4 sqmm suspension wire complete all as specified and as directed.

Taking down LT UG Cables/service cable of any size from trenches/poles complete after disconnection all as specified and directed

Excavating in trenches not exceeding 1.5 m wide and not exceeding 1.5 m in depth; for foundation, etc. or for shafts, wells, cesspits, manholes, pier holes, etc. or for cable laying or water supply pipes lines etc or not exceeding 10 sqm on plan and getting out in soft/ loose soil complete all as specified and as directed.

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

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

Supply & spreading in trenches sand cushioning to underground cable in trenches including spreading, levelling hand punning down complete all as specified and directed Note:- Depth of sand cushioning will be measured after punning down and levelling the sand properly.

M & L for auguring under road, pavement, hard standing, railway lines by trenchless technology using latest boring technique and necessary machine for insertion of GI pipe of 40 mm and 80 mm nominal bore complete all as specified and as directed.

Supply, laying, jointing, testing and commissioning cross-linked polyethylene (XLPE) insulated cable for working voltages of 1100 V, PVC sheathed, armoured, 2 core, nominal cross sectional area of main conductor 10 sqmm, stranded aluminium conductor, ISI marked as per IS 7098(Part-I): 1988 including cable glands, lugs etc. to suit the cable size and to be laid in trenches, fixed along pole, under floors, through GI pipe laid under floors/roads, through concealed GI pipe along wall etc. complete all as specified and as directed.

Supply, laying, jointing, testing and commissioning cross-linked polyethylene (XLPE) insulated cable for working voltages of 1100 V, PVC sheathed, armoured, 4 core, nominal cross sectional area of main conductor 16 sqmm, stranded aluminium conductor, ISI marked as per IS 7098(Part-I): 1988 including cable glands, lugs etc. to suit the cable size and to be laid in trenches, fixed along pole, under floors, through GI pipe laid under floors/roads, through concealed GI pipe along wall etc. complete all as specified and as directed.

Supply, laying, jointing, testing and commissioning cross-linked polyethylene (XLPE) insulated cable for working voltages of 1100 V, PVC sheathed, armoured, 4 core, nominal cross sectional area of main conductor 25 sqmm, stranded aluminium conductor, ISI marked as per IS 7098(Part-I): 1988 including cable glands, lugs etc. to suit the cable size and to be laid in trenches, fixed along pole, under floors, through GI pipe laid under floors/roads, through concealed GI pipe along wall etc. complete all as specified and as directed.

Supply, laying, jointing, testing and commissioning cross-linked polyethylene (XLPE) insulated cable for working voltages of 1100 V, PVC sheathed, armoured, 3 core with reduced neutral conductors (3½ core), nominal cross sectional area of main conductor 35 sqmm, stranded aluminium conductor, ISI marked as per IS 7098(Part-I): 1988 including cable glands, lugs etc. to suit the cable size and to be laid in trenches, fixed along pole, under floors, through GI pipe laid under floors/roads, through concealed GI pipe along wall etc. complete all as specified and as directed.

Supply, laying, jointing, testing and commissioning cross-linked polyethylene (XLPE) insulated cable for working voltages of 1100 V, PVC sheathed, armoured, 3 core with reduced neutral conductors (3½ core), nominal cross sectional area of main conductor 50 sqmm, stranded aluminium conductor, ISI marked as per IS 7098(Part-I): 1988 including cable glands, lugs etc. to suit the cable size and to be laid in trenches, fixed along pole, under floors, through GI pipe laid under floors/roads, through concealed GI pipe along wall etc. complete all as specified and as directed.

Supply, laying, jointing, testing and commissioning cross-linked polyethylene (XLPE) insulated cable for working voltages of 1100 V, PVC sheathed, armoured, 3 core with reduced neutral conductors (3½ core), nominal cross sectional area of main conductor 70 sqmm, stranded aluminium conductor, ISI marked as per IS 7098(Part-I): 1988 including cable glands, lugs etc. to suit the cable size and to be laid in trenches, fixed along pole, under floors, through GI pipe laid under floors/roads, through concealed GI pipe along wall etc. complete all as specified and as directed.

Supply, laying, jointing, testing and commissioning cross-linked polyethylene (XLPE) insulated cable for working voltages of 1100 V, PVC sheathed, armoured, 3 core with reduced neutral conductors (3½ core), nominal cross sectional area of main conductor 95 sqmm, stranded aluminium conductor, ISI marked as per IS 7098(Part-I): 1988 including cable glands, lugs etc. to suit the cable size and to be laid in trenches, fixed along pole, under floors, through GI pipe laid under floors/roads, through concealed GI pipe along wall etc. complete all as specified and as directed.

Supply, laying, jointing, testing and commissioning cross-linked polyethylene (XLPE) insulated cable for working voltages of 1100 V, PVC sheathed, armoured, 3 core with reduced neutral conductors (3½ core), nominal cross sectional area of main conductor 120 sqmm, stranded aluminium conductor, ISI marked as per IS 7098(Part-I): 1988 including cable glands, lugs etc. to suit the cable size and to be laid in trenches, fixed along pole, under floors, through GI pipe laid under floors/roads, through concealed GI pipe along wall etc. complete all as specified and as directed.

S & F earth continuity conductor or main earthing lead fixed to wall on 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 32 mm X 6 mm galvanised mild steel strip complete all as specified and as directed.

M & L for preparing and painting and painting on steel tubular swaged pole 410 SP-31 (9.00 metre long) including cross arms, GI brackets with two coats of aluminium paint over a coat of aluminium red oxide primer on exposed portion and including making strips of width 30 cm upto 1.5 m from the ground level in black and yellow shade in alternate layer including numbering of poles using two coats of synthetic enamel paint over a coat of red oxide zinc chrome primer complete all as specified and as directed.

Material and labour for painting to RCC pole 8.50/9.00 metre long after scrapping of old painted surfaces with two coats of cement based paint up to 1.20 metre height from ground level in 30 cm alternative black and yellow strips and remaining portion including MS frames like channel,clamps, angle, D-clamps etc with two coats of synthetic enamel paint of suitable colour complete all as specified and directed.

Supplying & laying in repair 50 mm nominal bore, light grade, galvanised coated steel tube conforming to IS 1239 (Part-1): 2004 including all fittings conforming to IS 1239 (Part-2): 2011 complete all as specified and as directed.

Supplying & laying in repair 80 mm nominal bore, light grade, galvanised coated steel tube conforming to IS 1239 (Part-1): 2004 including all fittings conforming to IS 1239 (Part-2): 2011 complete all as specified and as directed.

M&L for line separator 2way PVC type with clamp including fixing with overhead lines of multi conductor of ACSR as and where directed to prevent short circuiting of phase/neutral conductors mutually complete all as specified and directed.

M&L for line separator 3way PVC type with clamp including fixing with overhead lines of multi conductor of ACSR as and where directed to prevent short circuiting of phase/neutral conductors mutually complete all as specified and directed.

M & L for earthing complete with galvanised steel plate earth electrode 600 mm X 600 mm X 6 mm thick, buried directly in ground (earth pit not less than 2.25 metres deep below ground level) with top edge of the plate not less than 1.5 metres below normal ground level, connected to earthing lead of 4.0 mm dia galvanised mild steel wire by means of bolts, nuts, check nuts and washers of galvanised iron from earth plate to test point upto 7.5 metre including all as shown in electrical plate No. 3 of SSR Part I (2009) including necessary concrete chamber in cement concrete M15 (Nominal Mix) using 20 mm nominal size coarse aggregate, precast RCC cover slab in cement concrete M15 (Nominal mix) using 20 mm nominal size coarse aggregate of size 40 cm X 40 cm X 5 cm reinforced with 8 mm dia TMT bars @ 150 mm c/c with one handle for lifting made out of 8 mm dia bar, GI funnel, GI wire mesh filter, 20 mm dia GI pipe medium grade for watering, 20 mm dia GI pipe medium grade for protection of earthing lead, charcoal or coke and salt in alternate layers including necessary excavation and earth work in any type of soil/ strata and testing complete all as specified and as directed by the Engineer-in-charge.

M & L for earthing complete with galvanised steel plate earth electrode 600 mm X 600 mm X 6 mm thick, buried directly in ground (earth pit not less than 2.25 metres deep below ground level) with top edge of the plate not less than 1.5 metres below normal ground level, connected to earthing lead of 32 mm X 6 mm galvanised mild steel strip by means of bolts, nuts, check nuts and washers of galvanised iron from earth plate to test point upto 7.5 metre including all as shown in electrical plate No. 3 of SSR Part I (2009) including necessary concrete chamber in cement concrete M15 (Nominal Mix) using 20 mm nominal size coarse aggregate, precast RCC cover slab in cement concrete M15 (Nominal mix) using 20 mm nominal size coarse aggregate of size 40 cm X 40 cm X 5 cm reinforced with 8 mm dia TMT bars @ 150 mm c/c with one handle for lifting made out of 8 mm dia bar, GI funnel, GI wire mesh filter, 20 mm dia GI pipe medium grade for watering, 40 mm dia GI pipe medium grade for protection of earthing lead, charcoal or coke and salt in alternate layers including necessary excavation and earth work in any type of soil/ strata and testing complete all as specified and as directed by the Engineer-in-charge.

M&L for Cleaning of electric substation by uprooting unwanted grass, bushes and trimming of branches, surface dressing not exc.15cms deep in loose/soft soil to cut the grass,throne busehs and other any type of grass upto root level surrounding the installation and depositing the same at nearby garbage pit, refreshing and re-spreading aggregates inside the premises of sub station if any including cleaning of road/path/fencing etc, maintenance of transformer platform all as specified and directed.

M & L for cement concrete M10 (Nominal Mix) using 20 mm nominal size coarse aggregate in pole coping or roof kerbs or mud stops, rounded or chamfered on edges complete all as specified and as directed.

Material and labour for painting of pole number using stensils of letter size 75mm height with white synthetic enamel paint over black background complete all as specified and directed.

Material and labour junction boxes with new Thermoplastic Cable Junction Boxes IP66/67 "weather proof" , for outdoor installation with knockouts for cable entry with terminals suitable for 10-16sqmm cable off Size 155 X 210 X 92 mm incl busbar fixed in repairs and including Necessary civil works and connecting all incoming and outgoing wires with AL lugs of appropiate sizes and complete all as specified and directed by Engr-in-Charge. Make Cat No. KF1616G of Hensel or euivalent

Supply, install, testing & commissioning of LT busbar chamber of size (0.60x0.60x0.60)m CPRI approved, outdoor type, factory made fabircated to CRCA sheet of 3.15 mm thickness, angle iron of size 40X40X6mm thick of length 0.6 m from pcc, frame work and tee section (frame) of suitable size double door front/rear opening and locking arrangement, floor mounted on plateform of suitable size, Cu bus bar chamber (enclosed) incl rust free spray painting with two coat of synthetic enamel paint over a coat of red oxide primer mounted on PCC blocks, fixed with grouted bold, nuts and washer and making complete connection in all recpects at 375 Bge and NAA as diected by engr-in-charge comprising of following accessories:- BUS-BAR & INTERNAL CONNECTIONS: The bus-bars shall be made up of 04 Nos tinned Copper 400 A rated not less than 32mmx6mm, duly insulated with 1100 V grade standard colour coded PVC sleeves & rigidly mounted on suitable sized "F" class insulators of non-hygroscopic fiber bushes and brass screws min-08 Nos, non-combustible, all internal connections from main bus-bars to switch gears etc. PROVISION FOR CABLE ENTRY : The provision for cable entry/exit shall be provided in the bottom for both incoming & out-going cables, INSTRUMENTATION SYSTEM : (a) Indicator lamp with integral circuit (230/240V) & cluster LED (Red, Orange, Blue) - 01 Set. (b) 3 Ph Digital Voltmeter CI 1.0 - 01 No (c) Danger notice plate of size 20 x 15 cm of 1.6mm thick mild-steel sheet, vitreous enameled 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 conforming to IS-2551 - 01 Nos. NOTE : 1) Design / Drawing / BOM of the LT Busbar panel board showing the dimensions incl accessories is to be obtained from panel board manufacturer / supplier & is to be got approved from GE before placing final order to the manufacturer/Supplier. 2) Anything missed out in the technical specifications but technically required for efficient working is deemed to be included in the quoted rates. NOTE : 1) Design / Drawing / BOM of the panel board showing the dimensions incl accessories is to be obtained from panel board manufacturer / supplier & is to be got approved from GE before placing final order to the manufacturer/Supplier. 2) Anything missed out in the technical specifications but technically required for efficient working is deemed to be included in the quoted rates.

Material & Labour for complete load balancing of each transformer LT Supply by analysing data and reconnecting of load as per requirement to balance the load, the diconnection of cable from ACSR LT poles, cable etc to be done by taking proper shutdown to avoid any unwated condition complete connection in all respects as diected by engr-in-charge. The quoted rate shall include the cost of electrical and instruments/tools required during load balancing by the skilled electricians.

M & L for laying of bricks locally available sub class 'B' bricks (old size) for cable protection cover laid flat and dry in trenches over the cable perpendicular to the direction of cable all as directed.

M & L for trimming of branches of trees touching HT/LT Electric over head line not exceeding 30 cm girth, shrub, vegetation, bush and saplings at least upto 5.0 m from outer edge of ACSR including cleaning of road/path/fencing etc complete all as directed.

M/S MANASEE

R.N. CONSTRUCTION COMPANY

Anil Kumar Sarmah

M/S Deep-Jeet

M/S Barua Enterprise

M/S Inder SINGH SABARWALL

MD. LATIFUL AHMED HUSSAIN

M/S S K ENTERPRISES