Capital Work of 220kV Substation, Edappon-Extending existing 220kV double bus and construction of 2 Nos. of 220kV feeder bays at 220kV Substation, Edappon to the proposed 220kV Substation, Pathanamthitta- I Stage works.

Amount

SITE LEVELLING, RETAINING WALL, LOWER YARD ENTRANCE

Clearing jungle including uprooting of rank vegetation, grass, brush wood, trees and saplings of girth up to 30 cm measured at a height of 1 m above ground level and removal of rubbish up to a distance of 50 m outside the periphery of the area cleared.

Demolishing plain cement concrete manually/ by mechanical means including disposal of material within 50 metres lead as per direction of Engineer - in -Charge

Demolishing stone rubble masonry manually/ by mechanical means including stacking of serviceable material and disposal of unserviceable material within 50 metres lead as per direction of Engineer-in-charge : In cement morter

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 m2 on plan) including getting out and disposal of excavated earth lead upto 50 m and lift upto 1.5 m, as directed by Engineer-in-charge.

Earth work in excavation by mechanical means (Hydraulic excavator) / manual means in foundation trenches or drains, including dressing of sides and ramming of bottoms, including getting out the excavated soil and disposal of surplus excavated soil as directed, within a lead of 50 m - Extra rates for quantities of works, executed -ordinary rock

Earth work in excavation by mechanical means (Hydraulic excavator)/manual meansover areas (exceeding 30 cm in depth, 1.5 m in width as well as 10 sqm on plan) including getting out and disposal of excavated earth lead upto 50 m and lift above 1.5 m and upto 3m, as directed by Engineer-in-charge.

Earth work in rough excavation, banking excavated earth in layers not exceeding 20cm in depth, breaking clods, watering, rolling each layer with 1⁄2 tonne roller or wooden or steel rammers, and rolling every 3rd and top-most layer with power roller of minimum 8 tonnes and dressing up in embankments for roads, flood banks, marginal banks and guide banks or filling up ground depressions, lead upto 50 m and lift upto 1.5 m : 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 : 1:4:8 (1 Cement : 4 coarse sand (zone-III) : 8 graded stone aggregate 40 mm nominal size)

Centering and shuttering including strutting, propping etc. and removal of form work for Foundations, footings, bases for columns

Centering and shuttering including strutting, propping etc. and removal of form work for walls (any thickness) including attached pilasters, buttresses, plinth and string courses fillets, kerbs and steps etc.

Providing and laying in position specified grade of reinforced cement concrete, excluding the cost of centering, shuttering, finishing and reinforcement - All work up to plinth level : 1:1.5:3 (1 cement : 1.5 coarse sand (zone-III): 3 graded stone aggregate 20 mm nominal size)

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

Solid concrete blocks using pre cast solid blocks of size (30×20×15 cm size) or nearest available size confirming to IS 2185 part I of 1979 for foundation and plinth with thickness 15cm in cement mortar 1:6( 1 Cement: 6 Coarse sand) etc complete as directed by departmental officers.

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

Providing weep holes in retaining wall using 75mm dia PVC pipes 6kg/sqcm including cost of materials conveyance labour charges etc complete as per the direction of Departmental officers at site

12 mm cement plaster on rough side of single or half brick wall of mix: 1:4 (1 cement: 4 coarse sand)

FOUNDATION OF STRUCTURE / EQUIPMENT

Demolishing stone rubble masonry manually / by mechanical means including stacking of serviceable material and disposal of unserviceable material within 50 metres lead as per direction of Engineer-in-Charge

Earth work in excavation by mechanical means (Hydraulic excavator)/ manual means in foundation trenches or drains (not exceeding 1.5 m in width or 10 m2 on plan), including dressing of sides and ramming of bottoms, lift upto 1.5 m, including getting out the excavated soil and disposal of surplus excavated soil as directed, within a lead of 50

Excavation work by mechanical means (Hydraulic excavator)/ manual means in foundation trenches or drains (not exceeding 1.5m in width or 10 m2 on plan), including dressing of sides and ramming of bottoms, lift upto 1.5 m, including getting out the excavated soil and disposal of surplus excavated soils as directed, within a lead of 50 m Ordinary rock

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 getting out and disposal of excavated earth lead upto 50 m and lift above 1.5 m and upto 3m, as directed by Engineer-in-charge.

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 m2 on plan) including getting out and disposal of excavated earth, lead up to 50 m and lift above 3 m and below 4.5 m, as directed by the Engineer- in- charge, disposed earth to be levelled and neatly dressed. All classes of soil.

Carriage of earth, for 1km load by mechanical transport including loading, unloading and stacking

Providing and laying in position Cement concrete 1:3:6 using 40 mm broken stone for padding concrete etc complete excluding the cost of centering and shuttering

Providing and laying in position cement concrete of specified grade excluding the cost of centering and shuttering - All work up to plinth level : 1:4:8 (1 Cement : 4 coarse sand (zone-III) : 8 graded stone aggregate 40 mm nominal size)

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

Providing and laying in position specified grade of reinforced cement concrete, excluding the cost of centering, shuttering, finishing and reinforcement - All work up to plinth level : 1:1.5:3 (1 cement : 1.5 coarse sand : 3 graded stone aggregate 20 mm nominal size)

Steel reinforcement for R.C.C work including straightening, cutting, bending, placing, in position and binding all complete

Stub setting with foundation bolt/stub for structures of 110 KV Isolators, LAs, CTs, PTs, CBs ,etc. using templates

Plastering with cement mortar 1:4,12mm thick including curing etc.

Fabrication and supply of cable trays made with structural steel including cutting, hoisting, welding , fixing in position and applying priming coat of approved steel primer etc all complete as directed by officers at site.

Finishing with Epoxy paint (two or more coats) at all locations prepared and applied as per manufacturer's specifications including appropriate priming coat,preparation of surface, etc. complete.On steel work

Conveying the covering slab of various sizes from the place of casting and placed over the already constructed cable trench etc complete.

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

Cutting of steel angle in yard structure erection

Welding charge for welding on iron parts using arc welding as per standards

Drilling holes of suitable size in angle, Channels etc. Including conveyence of materials and machinery to the site etc as per approved drawings and as ditected by departmental staff at site

Fabrication of structures for erecting equipments. The GI & MS angles will be supplied departmentally

Supplying and installing ISI marked 75 mm dia PVC pipes 6 kgf/cm2 and specials for weep holes in the retaining walls / cable trenches at all elevation including labour ,all lead and lift ,cost and conveyance of all materials as per the direction of Engineers in charge

Applying one coat of water thinnable cement primer of approved brand and manufacture on wall surface : Water thinnable cement primer

Finishing walls with water proofing cement paint of required shade : New work (Two or more coats applied)

ERECTION OF STRUCTURES / EQUIPMENT

Transporting by head load, the materials issued departmentally to the site from the place of storage and distribution to erection site. (upto a lead of 1km)

Erection of yard structures such as columns, beams & equipment structures using the structure parts, nuts & bolts, washers etc supplied departmentally free of cost complete as per the direction of departmental officers inluding punching of holes.

Erection of 1 No. 220kV CT/CVT on the already erected structure of above 1.5m height after opening of crates at the place of storage, leading to site carefully keeping at vertically not allowing tilting from vertical position more than the specified angles, keeping lines and levels as per the direction of the departmental officers, including all labour charges, hire charges of tools & tackles etc.

Erection of one set 220kV Bus Isolator on the already erected structure including opening crates and conveyance of all accessories from the place of storage to the place of erection to lines and levels, erection of mechanism box , checking operation and aligning properly, including cutting, welding etc. complete as per the direction of departmental officers.

Erection of one set 220kV Line Isolator on the already erected structure including opening crates and conveyance of all accessories from the place of storage to the place of erection to lines and levels, erection of mechanism box , checking operation and aligning properly, including cutting, welding etc. complete as per the direction of departmental officers.

Unpacking carefully and leading one set of 3 pole EHT 220KV Circuit Breaker from the place of storage, including support structure , mechanism box compressor, pipe lines etc. to site , cleaning and erecting on foundation using suitable lifting tools, after disassembling necessary parts if required, to lines and levels and assembling all the parts , connecting mechanism etc. in complete shape and making ready for commissioning as per the direction of departmental officers.

Erection of 1 No. 220kV LA/Post insulator on the already erected structure after opening of crates at the place of storage leading to site carefully, keeping lines and levels as per the direction of the departmental officers.

Uncoiling, paving out, stringing and fixing of bus bar using Moose Double conductor for one phase of 220KV bus of span up to 35M by cutting the conductor to sufficient length, crimping using compressor / bolting the four ends, washing, cleaning and drying the insulator discs, fixing the conductors to the 220kV yard structure with sufficient tension using string of double/single tension insulators and hardwares complete. at four ends, fixing of arcing hornes at both ends, fixing of spacers between two conductors at regular intervals as specified by the dept. staff at site, including transportation of materials from the stockyard to the site under the supervision and direction of department staff at site. (All materials will be supplied departmentally at free of cost).

Uncoiling, paving out, stringing and fixing of bus bar using Moose Double conductor for one phase of 220kV bus of span up to 35m by cutting the conductor to sufficient length, crimping using compressor / bolting the four ends, washing, cleaning and drying the insulator discs, fixing the conductors to the 220kV yard structure with sufficient tension using string of double/single tension insulators and hardwares complete. at four ends, fixing of arcing hornes at both ends, fixing of spacers between two conductors at regular intervals as specified by the dept. staff at site, including transportation of materials from the stockyard to the site under the supervision and direction of department staff at site. (All materials will be supplied departmentally at free of cost). For a span above 35m

Stringing and fixing earth wire of size 7/9, 7/10 or 7/3.15 between top of the columns and to terminal tower at 220KV substation with compressed / bolted ends at proper tension including uncoiling and cutting of conductor , jumpering, giving earth bond connections by drawing the end of the conductor through the columns, jointing where ever necessary providing back stays at the time of stringing etc. as per the direction of the departmental officers.

Providing interconnection between equipments using ACSR Moose Double conductor at both ends with compressed/ bolted ends including uncoiling and cutting of conductor as per the direction of departmental officers.

Providing droppers and connecting to lines / equipments or jumper between two buses without suspension insulators using ACSR Moose/ Kundah/ wolf Double conductor at both ends with compressed/ bolted ends , fixing spacers at regular intervals as directed, including uncoiling and cutting of conductor as per the direction of departmental officers. (For one phase)

Providing droppers and connecting to lines / equipments or jumper between two buses with necessary suspension insulators for 33kV/66kV/110kV/220kV using ACSR Moose/ Kundah/ wolf Double conductor at both ends with compressed/ bolted ends, fixing spacedrs at regular intervals as directed, including uncoiling and cutting of conductor as per the direction of departmental officers. (For one phase)

EARTHMAT

Earth work in excavation by mechanical means (Hydraulic excavator) or manual means in foundation trenches or drains (not exceeding 1.5 m in width or 10 m2 on plan), including dressing of sides and ramming of bottoms, lift up to 1.5 m, including getting out the excavated soil and disposal of surplus excavated soil, with in a lead of 50 m. ( All kinds of soil)

Excavation work by mechanical means (Hydraulic excavator)/ manual means in foundation trenches or drains (not exceeding 1.5m in width or 10 m2 on plan), including dressing of sides and ramming of bottoms, lift upto 1.5 m, including getting out the excavated soil and disposal of surplus excavated soils as directed, within a lead of 50 m. – Ordinary rock

Cutting 32mm MS rod in required length etc complete as per the direction of the departmental officers.

Bending 32mm MS rod suitably for risers, crossing cable trenches/foundations etc. as per directions of departmental officers at site

Laying of earth mat of required size as specified using 32 mm MS rod including levelling lowering and placing in trenches, complete as per the direction of departmental officers

Driving down the ground electrode upto a depth of 3m from the already taken earth pit as directed by the departmental officers.

Welding of overlapping joints for mat,riser lap joints with 32mm MS rod placed in trenches, having 150mm in length 6mm thick on both sides of the rod and both ends of overlapped MS rods with 6mm welding thickness after cleaning the surface neatly. Charges includes cost for low hydrogen content electrode (No.E7018), hire charges for DC arc welding set and tools and plants required, current charges including labour charges for holding MS rod in position and applying two coats of anticorrosive paints at the welded joints etc. complete as per directions of departmental officers at site

Welding the nodal points (cross joints ) in the trenches at two sides to a thickness of 6mm after cleaning the surface neatly. Charges includes cost of low hydrogen DC electrodes (No. E7018), hire charges of DC welding set and tools and plants required, current charges, labour charges for holding MS rod/ GI earth pipe in position and applying two coats of anti corrosive paints at the welded joints etc. complete as per the directions of departmental officers.

Welding the ground electrode with the main electrode , after cleaning the surface neatly. Charges includes cost of low hydrogen content DC electrodes (No. E7018), hire charges of DC arc welding set, tools and plants, current charges, labour charges for holding MS rod in position and applying two coats of anti corrosive paints at the welded joints etc. complete as per the directions of departmental officers.

Laying of departmentally supplied GI strip/Copper strip of suitable size including cleaning and neatly bending of strips ,cutting, removing of metal/earth in the yard and burying earth strip to the required depth re-doing the yard metalling as per the direction of the departmental officers.

Welding one end of the bended GI strip of size 50x6mm with the riser of the already laid earth mat, welding 150mm in length, 6mm thick on both sides & end of the strip & other end of the strip with yard structure at 2 points 50mm apart each welding points having 50mm length and 6mm thick on both sides & end of the strip including the charges for connecting the strip with structure using bolted joints as per the directions of the department officers. Charges includes hire charges of DC arc welding set, current charges, cost of low hydrogen content DC arc welding electrodes(No.E7018) cost of anti corrosive paint etc. complete.

Welding overlapping joints of 50x6mm GI strip with 50mm long, 6mm thick welding on all three sides after doing 2 Nos. bolted joints at the centre as specified after cleaning the surface. Charges includes hire charges of DC arc welding set, current charges, cost of low hydrogen content DC arc welding electrodes( No.E7018) cost of anti corrosive paint etc. complete.

Welding one end of the bended GI strip of size 50x6mm with the riser of the already laid earth mat, welding 150mm in length, 6mm thick on both sides & end of the strip and connecting other end with nuts & bolts if required as per the directions of the department officers. Charges includes hire charges of DC arc welding set, current charges, cost of low hydrogen content DC arc welding electrodes(No.E7018) cost of anti corrosive paint etc. complete.

Cutting of steel angle in yard structure erection

Welding charge for welding on iron parts using arc welding as per standards

Drilling holes of suitable size in angle, Channels etc. Including conveyence of materials and machinery to the site etc as per approved drawings and as ditected by departmental staff at site

Filling available excavated earth (excluding rocks) in trenches, plinth, in sides of foundation etc. in layers not exceeding 20 cm in depth, consolidated each deposited layer by ramming and watering, lead upto 50 m and fill upto 1.5 m.

Red Star Constructions