Installation of 05 Nos. of 1250 A, 33kV, SF6 Circuit Breakers along with accessories and revival of 33 kV bay of 33000/110V PT side in 15 MVA, 33kV/6.6kV New Sub-station of KDH OCP, NK Area

Amount

Providing and fixing of Bi-Metallic, Pad to ACSR Wolf conductor connector for CBs incoming and outgoing connections.

Providing and fixing of Bi-Metallic, stud to ACSR Wolf conductor connector for 04 sets of CT.

Providing and fixing of Bi-Metallic, stud to ACSR Wolf conductor connector for 02 sets of PT.

Installation of Current Transformer, CTR 200-100/5-5-5A, 33kV grade, oil cooled, Class 0.5, 15 VA, Core 2, Class 5P10, 15 VA, to the stand in the yard. (1 set consisting of 03 Nos.)

Installation of Potential Transformer, 33000/√3/110/√3 V grade, oil cooled on the stand in the yard. (1 set consisting of 03 Nos.)

Providing and fixing of SF6 gas in the limbs of the circuit breakers as per specifications.

Providing and fixing of 600 mm x 600 mm x 300 mm, powder coated, terminal box with hinged door, cam lock, IP 55 Degree of protection and cable gland plates, with terminal connector (36 Nos. set 15 A) and double compression gland bush (SS)

Providing and fixing of double compression gland bushes, brass casted as per IS: 12943, dia: 1.1/2”.

Providing and fixing 25 mm X 5 mm GI. Strip on surface or in recess for connections etc. as required.

Fixing of GOAB Switch 33kV grade, 1250 Amperes, 25kA for 3 sec., Triple pole, Double break, Horizontal upright mounting, with 22 kV grade porcelain post insulators, vertical operating pipe, and phase coupling pipe. (GOAB to be provided departmentally).

Supplying of two lengths of channel iron 100 mm X 50 mm X 6 mm (9.56 kg per meter) double pole cross arm for three wire 33 KV overhead line conductors complete with through bolts and nuts for clamping to the poles, 50 mm X 6 mm M.S. flats welded on one side to the channel iron and with bolts and nuts on the other side for tying the cross arms together, including drilling holes for insulator pins/ fittings, bolts, nuts, washers etc. and painting with primer and finish paint as required.

Providing of fixing of 200 Amps, Drop Out Fuse Channel Mounted type suitable for outdoor vertical pole mounting, 3-Ω, 50Hz, 33kV (22 kV x 2) Porcelain post insulator, on base channel, silver coated Top & bottom contact assembly as per IS: 9835.

Providing and fixing of Copper unarmored Control Cable 1.1 kV grade 1.5 sqmm 12 Core.

Providing and fixing of 22 kV Porcelain Post insulator for bus bar support.

Providing and fixing of clamps for mounting of Post insulator, for clamping 50 mm dia Aluminum bus bars.

Fabrication and painting of circuit breakers base structure from MS Angles, drilling holes etc.

Overhauling of circuit breaker and its mechanism and replacement/ repairing of small spares, painting of circuit breakers with connection of control cables and auxiliary power supply, its installation at its base structure, testing with primary and secondary current injection and commissioning etc.

Earthing with copper earth plate 600 mm X 600 mm X 3 mm thick including accessories, and providing masonry enclosure with cover plate having locking arrangement and watering pipe of 2.7 meter long etc. with charcoal/ coke and salt as required.

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 sqmm 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 m. All kinds of soil.

Supplying and filling in plinth with Jamuna sand under floors including, watering, ramming consolidating and dressing complete.

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 40mm nominal size)

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) derived from natural sources : 3 graded stone aggregate 20 mm nominal size de rived from natural sources)

Reinforced cement concrete work in walls (any thickness), including attached pilasters, buttresses, plinth and string courses, fillets, columns, pillars, piers, abutments, posts and struts etc. above plinth level up to floor five level, excluding cost of centering, shuttering, finishing and reinforcement: 1:1.5:3 (1 cement : 1.5 coarse sand(zone-III) derived from natural sources : 3 graded stone aggregate 20 mm nominal size derived from natural sources)

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.

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

Centering and shuttering including strutting, propping etc. and removal of form Walls any thickness) including attached pilasters, buttresses, plinth and string courses etc.

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 for all lift upto 1.5 m.

Providing and fixing mild steel round holding down bolts with nuts and washer plates complete, 1” x 30” (approx. 3.5 kgs each), 6 Nos. per structure, total 24 Nos.

Total impact of GST for the purpose of CTC