REPAIRS/MAINT TO FENCING, SECURITY WALL AND MISC WORKS IN TECH/ DOMESTIC AREA AND REPAIR/REPLACEMENT OF EARTHING PITS IN TECH/DOMESTIC AREA UNDER GE (AF) HASIMARA

Amount

Demolition of brick work or stone / boulder masonry, built in cement mortar including all quoins, pillars etc stacking the serviceable bricks after removing mortar and cleaning for re-use and disposal of debris and rubbish to a distance n.exc 100m as directed by the Engr-in-Charge.

Demolition of un-reinforced cement concrete in ground floors and pavings n.exc 15cm thickness, (Below or above Ground level) and disposal of debris and rubbish to a distance n.exc 100m complete all as directed by the Engr-in-Charge

Demolition of reinforced cement concrete in any position not otherwise specifically provided for complete all as specified and directed.

Taking down cement plaster on brick or stone walls etc including racking out joints, hacking for key, scrubbing down with water complete all as specified and directed

M & L for Brick work with sub class 'B' bricks, straight or curved on plan exc 6m mean radius, built in cement mortar 1:6 complete all as specified and directed.

M & L for Plain cement concrete 1:3:6, type C-2 (using 40mm graded stone aggregate) as in surface channel, drains etc complete all as specified and directed.

M & L for plain Cement Concrete 1:2:4, type B-2 (using 40 mm graded stone aggregate) as in walls, retaining walls, ballast walls and the likes any thickness above top of footings including attached pilasters and buttreses complete all as specified and directed.

M & L for use & waste Formwork to faces of walls, retaining walls, abutments, parapets and staircase railings and similar work including attached pillasters, buttresses, etc.; vertical or to batter for flat rough finished surfaces of concrete complete all as specified and directed.

M & L for Plain cement concrete 1:2:4, type B-1, (using 20 mm graded stone aggregate) as in benching, coping, bed plate, lintel upto 1.5m span cast in situ including necessary form work complete all as specified and directed.

M & L for rendering 15 mm thick in cement mortar 1:4 on fair faces of brick masonry or concrete surfaces and finishing the surfaces even and smooth without using extra cement complete all as specified and directed.

M & L for Reinforced Cement Concrete 1:1.5:3, Type A-1 (Nominal Mix) (using 20 mm graded stone aggregate) as in columns, pillars, posts and struts including necessary form work complete all as specified and directed.

S & F TMT steel bars 10 mm dia., and over cut to length, bend to shape required, including cranking, bending spirally for hooping for columns, hooking ends and binding with and including mild steel wire (annealed) not less than 0.9 mm dia or securing with clips quality complete all as specified and directed.

M & L for preparing newly plastered surfaces of walls, etc and applying three coats of white wash complete all as specified and directed.

Dismantling structural steel work including doors, gates but excluding framed truss etc. complete all as specified and directed.

M & L for Rolled Mild Steel Hand rails, half round or other stock section or core for wooden hand-rail straight portion, drilled and countersunk for balusters running bars, for doors, balusters, nosing to steps including embeding in concrete and screwing etc. wind ties for roof including securing bolts; posts and struts in fencing including cutting tops to shape as directed, drilling holes, notching for wire, etc.; flat iron fillets (for securing wire mesh etc.) including all necessary drilling, bolting or riveting, etc., and similar work conforming to Fe-290 Gde E-165 complete all as specified and directed.

S & F in repair Galvanised 2 strand, steel barbed wire 2.24mm dia barbed with 2mm dia barbs at 75mm spacings and straining and fixing to any type of standard rails straining bolts, including, securing or tying at crossings with and provision of galvanised mild steel wire, staples or steel pins, etc. as directed (each line wire to be measured) complete all as specified and as directed.

Re-straining and re-securing of Galvanised 2 strand, steel barbed wire 2.24mm dia barbed with 2mm dia barbs at 75mm spacings including making good staples etc complete all as specified and as directed. (each line wire to be measured)

Dismantling fencing wire mesh, any type complete complete all as specified and directed.

Supply only chain link MS galvanisd fencing, any size or type complete all as specified and directed. (Note: Weight of chain link shall be ascertain by a BOO to be convened by Accepting Officer)

Fixing only chain link fencing including line wires, any mesh, size and type to any type of standards, rails, straining bolts, etc. including provision of binding wire complete all as specified and directed

Fixing only old serviceable chain link fencing as obtained from serial item No. 18 above including line wires, any mesh, size and type to any type of standards, rails, straining bolts, etc. including provision of binding wire complete all as specified and directed

S & F Mild steel screw bolts of 11 to 15 mm diameter of shank (machine made) with hexagonal or square heads at one end and screwed the other, or screwed both ends, each screwed end to be fitted with washers and one hexagonal or square nut, length of bolt exc 5cm and n exc 10cm long complete all as specified and directed.

S & F in repair concertina coil fencing with punching tap concertina coil 960mm dia 13 mtres openable length having 53 Nos rounds per 6 metres length, single coil, fixed on wall with existing angle iron 'Y' shaped with horizontal reinforced barbed wire 2.24mm dia barbed with 2mm dia barbs at 75mm spacing, stud tied with GI staples and GI clips to retain horizontal including necessary bolts or GI barbed wire tied to angle iron complete all as specified and as directed. (Note: (i) Weight of concertina coil shall be ascertain by a BOO to be convened by Accepting Officer (ii) Barbed wire shall be measured and paid seperately under respective items here-in-before)

All as per serial item No. 23 above but fixing only in repair of any dia complete all as directed. (Note: Old serviceable loosed concertina coil shall be refixed at site after taking down complete)

Demolition of stone/ boulder masonry, laid dry, stacking the serviceable stone for re-use and disposal of debris and rubbish to a distance n.exc 100m complete all as directed by the Engr-in-Charge.

M & L for Walling of random rubble, uncoursed, well bonded, laid dry in retaining walls, abutments and similar work complete all as specified and directed.

All as per serial item No. 26 above but except stone complete and dittto (Note: Old serviceable stone as obtained from item No. 25 above shall be re-used)

S & F in repair 4mm dia galvanised steel wire, 150x100mm mesh, made up into mattresses or cages, lapped, wired and laid in position, including closing after filling complete all as specified and as directed.

M & L for Preparation of new steel surfaces of any description, over 10 cm in width or girth, not otherwise described and applying two coats of synthetic enamel paint over a coat of red oxide, zine chrome primer complete all as specified and directed.

Fixing only in repair aluminium strip of size 25x3.00mm with and including new shaddles and fixing accessories etc as in roof conductor and down conductors above ground complete all specification and directed.

Fixing only in repair copper strip of size 20x3.00mm burried in ground complete all specification and directed.

Fixing only in repair copper strip of size 32x6mm burried in ground complete all specification and directed.

Fixing only in repair galvanised iron strip of size 32x6mm burried in ground complete all specification and directed.

S & F aluminium strip 25 x 3.00mm with Saddles and fixing screws etc for roof conductors and down conductors above ground level including taking down the old one complete all as specified and directed.

S & F Copper strip 20 x 3.00mm burried in ground including taking down the old one complete all as specified and directed.

S & F Copper strip 32x6mm buried in ground including taking down the old one complete all as specified and directed.

S & F Galvanised iron strip 32x6mm buried in ground including taking down the old one complete all as specified and directed.

M & L for Earthing complete with galvanized steel earth plate electrode 600 mm x 600 mm x 6 mm thick buried directly in ground (earth pit not less than 2.25 meter deep below ground level) with top edge of plate not less than 1.5 meter below normal ground level, connected to galvanized steel earth lead wire 4 mm dia by means of bolts, nuts, check nuts and washers of galvanized iron or steel, all as shown in Electrical Plate No 3 of SSR Part - I, including necessary excavation and earth work, P.C.C (1:3:6) type C-I with 50 mm thick Pre-cast R.C.C. (1:2:4) type B-I cover slab (reinforced with 8 mm dia deformed bar @ 15 cm C/C both ways and suitable handle of 10 mm dia round bar), including providing charcoal or coke and common salt in alternate layers of 15 cm compacted thickness all around the earth electrode, with funnel and 20 mm bore galvanized iron watering pipe (light grade), wire mesh, aluminium lugs, complete in all respect, GI earth wire protected by 15 mm bore (medium grade) galvanized iron pipe and other end connected with main switch board or Earthing test point as directed, including necessary earth work and disposal of spoil to a distance not exceeding 50 metre and necessary testing on completion including taking down old one complete all as specified and as directed by the Engineer-in-Charge.

M & L Earthing complete with GI earth plate electrode 600 mm x 600mm x 6 mm thick burried directly in ground vertically to a depth not less than 2.25 m below ground level with the top edge of earth plate at depth not less than 1.5 m below ground level connected with galvanised earth strip of size 32x6mm dia by means of bolts, nuts, check nuts and washers protected by 40mm bore light grade GI pipe, funnel with 20mm bore GI medium grade pipe for watering, wire mesh, including concrete pit in PCC (1:3:6) type C-1, with 50 mm thick Pre-cast R.C.C. (1:2:4) type B-I cover slab (reinforced with 8 mm dia deformed bar @ 15 cm C/C both ways and suitable handle of 10 mm dia round bar), including providing charcoal or coke and common salt in alternate layers of 15 cm compacted thickness all around the earth electrode, with funnel, wire mesh, aluminium lugs, complete in all respect and other end connected with main switch board or Earthing test point as directed, including necessary earth work and disposal of spoil to a distance not exceeding 50 metre and necessary testing on completion including taking down old one complete all as specified and as directed by the Engineer-in-Charge.

M & L Earthing complete with copper earth plate electrode 600 mm x 600mm x 3.15 mm thick burried directly in ground vertically to a depth not less than 2.25 m below ground level with the top edge of earth plate at depth not less than 1.5 m below ground level connected with copper earth strip of size 20x3mm dia by means of bolts, nuts, check nuts and washers protected by 40mm bore light grade GI pipe, funnel with 20mm bore GI medium grade pipe for watering, wire mesh, including concrete pit in PCC (1:3:6) type C-1, pre-cast RCC 1:2:4 type B-1 cover slab of size 350x350x50mm reinforced with 8mm dia TMT steel bars @15cm centre to centre in both direction and 10mm dia MS handle of suitable size, charcoal or coke and salt in alternative layers,necessary earth work in soft/loose soil all as shown in Electrical Plate No 3 of MES Schedule Part I and testing complete including taking down old one as specified and as directed.

All as per serial item No. 40 above but using magnesium sulphate in lieu of common salt complete including taking down old one as specified and as directed.

All as per serial item No. 40 above but using copper sulphate in lieu of common salt complete including taking down old one as specified and as directed.

M & L for 40 mm bore, steel tubes, galvanised, medium grade with all fittings, laid in floor/road crossing/drain etc as in cable protection complete to walls and ceilings or laid in floors including taking up or down existing pipe complete all as specified and directed.

S & F in repairs porcelain vitreous white/brown/green spacers insulator of size 75x35x40mm high complete with one number galvanised iron stud, bolts 6mm dia, 40mm long including nuts, bolts & washers and two numbers galvanised iron fixing bolts of size 6mm dia and 50mm long including washers and drilling holes for holding/fixing aluminium strip/roof conductor as required complete all as specified and directed.

S & F in repair earth continuity conductor or main earthing lead with galvanised iron wire 4mm dia, fixed to wall on batten or recesses or chases or burried in ground or drawn in conduit/pipe or fixed to poles or any other indicated situation for loop earthing etc, as required complete all specification and directed.

Fixng only in repair Test point terminal block made of gun metal or phosphorus bronze size 75x75x25mm drilled and screwed including 3 nos. 8mm dia 25mm long hex. head screw complete all as specified and directed.

S & F in repair Test point terminal block made of gun metal or phosphorus bronze size 75x75x25mm drilled and screwed including 3 nos. 8mm dia 25mm long hex. head screw complete all as specified and directed.

M & L for Earthing pit with PCC (1:3:6) type C-1, pre-cast RCC 1:2:4 type B-1 cover slab of size 300x300x50mm reinforced with 8mm dia TMT steel bars @15cm centre to centre in both direction and 10mm dia MS handle of suitable size including 20mm bore GI light grade pipe for watering, funnel, wire mesh, necessary earth work in soft/loose soil all as shown in Electrical Plate No 4 of MES Schedule Part I and testing and applying three coats of white wash on exposed surfaces of concrete complete including taking down old one as specified and as directed.

Supply and installation of maintenance free earthing system comprises of molecularly bonded copper of 99.9% purity on low carbon steel of 3 m length, having a diameter of 25 mm with copper coating thickness of 250 microns with fault current withstand capability of 30 KA RMS value of 1 second and 1 peak of 80 KA (OBO Article type 25 3000 CCER), tested as per IEC 62561-2, meets the requirement of IS-3043 & IEC 60364-5-54, tested in CPRI for short circuit with standing capacity, OBO article type OEC 25 Earth conductivity enhancing mineral compound to be used as a backfill compound for earth electrodes; highly conductive in all weather conditions is used for improving the soil conductivity. The material shall be mineral inert to sub soil and shall not pollute the environment and non corrosive to earth rod. The material should have a resistivity less than 0.2 Ohm -m. It should be free from hazardous substances. The mineral compound is required to have minimum 25 kg of the total composite, Universal clamp (OBO Article Type 25 25 RTC) made of SS 304 for clamping, Polypropylene & polyethylene (OBO type UFE) Earth electrod inspection chamber with heavy duty cover should be used to cover the earth rod. The dimension shall be 170mm x 170 mm x 190 mm with a weight bearing capacity of 50 KN. including provision and laying galvanised steel flat 30 x 3 mm thick from earth electrode to test joint directly in ground as required (Hot dip GI strip, corrision resistant - cross sectional area of 90 mm square, as per DIN EN 50164-2 (VDE 0185 Part 202) & VDE0185/305, IEC 62305, Zinc coating : 500 g/m square, 70 micron coating complete all as specified and directed. (Make : OBO / ABB/ JMV / Ashlok) (Note : After complete installation Earth Registivity result shall be less than 2 Ohm)

M & L for brazing of Copper strip including removing of nut, bolt, washer, excavation etc and connecting with equipment directly from earthing complete all as specified and directed. Note: An amount of Rs. 112010.00 on account of credit schedule for schedule 'A' part - II shall be deducted from the total amount of BOQ to arrive at the contract sum.

BHARAT ELECTRIC

JOGINDER KUMAR GOYEL

SHRI PARTHA DUTTA

M/S MANODEEP CONSTRUCTION

M/S BIJAY KUMAR SHIVA

M/S. NARENDRA KUMAR GARG

B L SHARMA