Installation and Commissioning of 200MVA Transformer Bank at 220 kV Substation, Edamon.

2.8.1 : 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 sqm 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 as directed, within a lead of 50 m.All kinds of soil

4.1.8 : 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 : 8 graded stone aggregate 40 nominal size)

5.22.6 : 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

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

5.1.2 : 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

13.7.1 : 12 mm cement plaster finished with a floating coat of neat cement of mix:1:3 ( 1 cement : 3 fine sand)

2.25 : Filling available excavated 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.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.

Dismantling of 1 No. 110/66KV CT/PT/CVT/CC/220KV NCT from the already erected structure of above 1.5m height, leading to storage place 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.

laying of earthmat of required size as specified using 40/32/25 mm MS rod including levelling lowering and placing in trenches, complete as per the direction of departmental officers.

Drilling holes and driving down MS ground electrode from the bottom level of trench in all classes of soil including rock etc. complete as per the direction of departmental officers.