Kerala State Electricity Board Tender

Tower Parts and other structures including earthing set

Transportation of dismantled tower parts including extensions and others (including Template) from site to Transmission compound Kalamassery as per the directions of Departmental officers at site.

Transportation of dismantled Conductors from site to Transmission compound Kalamassery as per the directions of Departmental officers at site.

Transportation of dismantled Insulators from site to Transmission store Kalamassery as per the directions of Departmental officers at site.

Erection of tower super structure above ground level including erection of normal and special hill side extension members wherever necessary, providing tower accessories like phase, danger and number plates, bird guards, anti climbing devices, including tighting ,punching and tack welding upto bottom cross arm in the bolt and nut after punching and applying zinc rich primer wherever necessary etc. complete, as directed by Board staff.(For 220 kV DC Tower - Average height is 33.2 mtrs) general area

Dismantling 220kV existing tower super structure including extensions and stacking the structures as per directions (50 % of the erection charges)

Drilling of holes

Filing of holes

Cutting of steel angle

Paving out, stringing and tensioning as per standard of six line 'ACSR KUNDAH' conductors including attaching insulator strings with arcing horns or rings on to the tower cross arms, clamping the conductor to the insulator strings using suspension clamps with armour rods and tension clamps, jumpering the conductors at tension points, jointing the conductors and pilot wire where ever necessary , installation of vibration dampers, hire charges of tractor and stringing tools, all hire and labour for protective trestle work, providing suitable back stays at the time of stringing etc complete (including sag , jumber).

Dismantling existing six line ACSR Kundah conductor from the tower and stacking the conductor as per directions

Paving out, stringing and tensioning as per standard one OPGW including fixing the conductors on to the tower tops using tension clamps and suspension clamps , jumpering the conductor at tension points , jointing of conductor where ever necessary, erection of earth bonds, hire charges for pulling machines, tractors and stringing tools, all hire and labour for protective trestles and providing suitable back strings at the time of stringing etc complete.

Dismantling existing OPGW from the tower and stacking the conductor as per directions

Splice One fibre of 24 fibre cable at FODP/LIU panal, splice loss shall be less than 0.05dB and arrange/ teminate the fiber inside the 24/12 fibre spliace box as per the direction of departmental officers.

Dismantling one set tension string with conductor from D- shackle of the 220kV tension tower after tensioning the conductor by using special appliances after giving jumper connections, then lowering the conductor with tension string, dismantling existing tension clamp with fittings from the conductor, marking the position of the tension hardware fittings after changing the damaged portion of line conductor if any with new conductor using Mid span joint and providing single tension hardware fittings/double tension hardware fittings (double tension hardware fittings for road crossing/ river crossing etc.) on the conductor using compressor, replacing damaged disc insulators, re-assembling the insulator string to the tension hardware fittings with conductor, lifting the same, re-assembling to the existing D-shackle at the cross arm and giving necessary jumper connections etc. as per the direction of departmental staff.

Providing earthing in terminal tower as per standard specification by providing 150mm dia bore hole for a depth of 3.6m and placing of GI pipes 50 mm dia GI "C" class 3m long into the bore including cost of 600 mm dia RCC collar placing over the earth pipe and connecting the earth pipe and tower leg using 7/3.66 mm GI earth wire with lugs connecting to the pipe and fixing necessary GI clamp etc., including drilling of bore cost of all lead and lifts etc., complete.

Stub setting (using template/probe) for 220 kV towers. Erection of stub, stub template, fixing of jack for supporting template, allignment and leveling for exact location of stubs of stub setting template, dismantling of template after completion of initial curing of Cement concrete, movement of template from one location to another complete, as directed by Board staff. - general area (For 220kV DC towers)

Arranging Scaffoldings on either sides of the Main road as per the direction of dept. officers excluding hire charges of materials.

Boring, providing and installing bored cast-in-situ reinforced cement concrete piles of grade M-35 of specified diameter and length below the pile cap to carry a safe working load not less than specified, excluding the cost of steel reinforcement but including the cost of boring, with bentonite solution and temporary casing of appropriate length for setting out and removal of same and the length of the pile to be embedded in the pile cap etc. all complete, by percussion drilling using Direct mud circulation (DMC) or Bailer and chisel technique by tripod and mechanical Winch Machine all complete including removal of excavated earth with all lifts and leads (Length of pile for payment shall be measured upto bottom of pile cap). The scope includes all works including the breaking pile head to cut off level and exposing pile reinforcement for embedment in pile cap etc all complete as per specification, drawings and as per the direction of KSEBL Engineer complete in all respects as per scope & technical specifications (Cement content considered in M35 design mix is 350 kg per cum. The additional cement content will be paid extra in the respective line item) -700 mm dia pilebr

Additional rate only for boring in rock, having PPR (IRC 78) value more than 450, for pile socketing (the normal boring in kinds of soil strata including concrete, boring, casing pipes, labour charges, conveyance etc. complete will be paid as per the respective line item)- diameter 700mm

Boring, providing and installing bored cast-in-situ reinforced cement concrete piles of grade M-35 of specified diameter and length below the pile cap to carry a safe working load not less than specified, excluding the cost of steel reinforcement but including the cost of boring, with bentonite solution and temporary casing of appropriate length for setting out and removal of same and the length of the pile to be embedded in the pile cap etc. all complete, by percussion drilling using Direct mud circulation (DMC) or Bailer and chisel technique by tripod and mechanical Winch Machine all complete including removal of excavated earth with all lifts and leads (Length of pile for payment shall be measured upto bottom of pile cap). The scope includes all works including the breaking pile head to cut off level and exposing pile reinforcement for embedment in pile cap etc all complete as per specification, drawings and as per the direction of KSEBL Engineer complete in all respects as per scope & technical specifications (Cement content considered in M35 design mix is 350 kg per cum. The additional cement content will be paid extra in the respective line item) -600 mm dia pile

Additional rate only for boring in rock, having PPR (IRC 78) value more than 450, for pile socketing (the normal boring in kinds of soil strata including concrete, boring, casing pipes, labour charges, conveyance complete will be paid as per the respective line item)- diameter 700mm

Earth work in excavation by mechanical means (Hydraulic excavator)/manual means over areas (exceeding 30 cm in depth, 1.5 m in width as well as 10 sqm on plan) including disposal of excavatedearth, lead up to 50 Om athndelirft Eupntog1i.n5 eme, driisnpogseOd eragrthatno ibsealetvieollnedsand neatly dressed.All kinds of soil

Providing and laying in position cement concrete of specified grade excluding the cost of centering and shuttering - All work up to plinth level:1:3:6 (1 cement : 3 coarse sand : 6 graded stone aggregate 20 mm nominal size)

Providing and laying in position machine batched and machine mixed design mix M-35 grade cement concrete for reinforced cement concrete work, using cement content as per approved design mix, including pumping of concrete to site of laying but excluding the cost of centering, shuttering, finishing and reinforcement, including admixtures in recommended proportions as per IS: 9103 to accelerate, retard setting of concrete, improve workability without impairing strength and durability as per direction of Engineer -in-charge.Note:- Cement content considered in this item is@350KG/cum. Excess or less cement used as per design mix is payable or recoverable separately. All work upto plinth level

Add for using extra cement in the items of design mix over and above the specified cement content therein

Centering and shuttering including strutting, etc. and removal of form for:Foundations, footings, bases of columns, etc for mass concrete

Steel reinforcement for R.C.C work including straightening, cutting, bending, placing in position and binding all complete upto plinth levelThermo - Mechanically Treated bars of grade Fe-500D or more

12 mm cement plaster of mix:1:4 ( 1 cement : 4 fine sand)

Clearing grass and removal of the rubbish up to a distance of 50 m outside the periphery of the area cleared.

Random rubble masonry with hard stone in foundation and plinth including levelling up with cement concrete 1:6:12 (1 cement : 6 coarse sand : 12 graded stone aggregate 20 mm nominal size) up to plinth level with:Cement mortar 1:6 (1 cement : 6 coarse sand)

Random rubble masonry with hard stone in superstructure above plinth level and upto floor five level, including leveling up with cement concrete 1:6:12 (1 cement : 6 coarse sand : 12 graded stone aggregate 20 mm nominal size) at window sills, ceiling level and the like.Cement mortar 1:6 (1 cement : 6 coarse sand)

Pumping or Bailing out water and removing slush etc by using pump set including cost of labour, oil hirecharges of pumpset, etc complete

Filling available excavated earth (excluding rock) in trenches, plinth, sides of foundation etc. in layers not exceeding 20 cm in depth, consolidating each deposited layer by ramming and watering, lead up to 50 m and lift up to 1.5 m.

Filling with contractor's own earth ( excluding rock) in trenches, plinth, sides of foundations etc. in layers not exceeding 20 cm in depth, consolidating each deposited layer by ramming and watering, lead up to 50 m and lift up to 1.5 m as per direction of site Engineer-in-charge

Solid block masonry using pre cast solid blocks ( factory made) of size 40x20x20cm or nearest available size confirming to IS 2185 part 1 of 1979 for foundation and plinth with thickness 20 cm and above in: CM 1:6 ( 1 cement : 6 coarse sand) etc complete

Solid block masonry using pre cast solid blocks (Factory made) of size 40x20x20cm or nearest available size confirming to IS 2185 part I of 1979 for super structure up to floor two level thickness 20cm and above in: CM 1:6 ( 1 cement: 6 coarse sand) etc complete.

Fabrication & erection of casing pipe of specified diameter with 6mm or specified thickness MS plate used for cast in situ pile including cost of casing pipe and conveyance of all materials, all relatedcharges for fixing anchorages etc .with all leads and lifts complete for all piling locations wherever found necessary as per the specification and as directed by KSEBL Engineerbr