Proposal to avoid the Electrical interruption from HFL zone of Damodar river by re-organisation of complete electrical power system consisting of 550V OH line, switchgears, transformers to a safe zone with end termination proper cable connection with

Amount

Supply of cement pole RCC, 8M long.

Erection of RCC/PCC pole of following length in brick ballast and ramming the foundation, finishing with 150 mm thick cement concrete (1:3:6) layer on top with including excavation and re-filling etc. as required. : Above 8.0 metre and upto 11.0 metre

Erection of steel pole tubular or rail pole strut concrete 1:3:6 (1 cement : 3 coarse sand : 6 graded stone aggregate 40 mm nominal size) foundation including excavation and re-filling and secured with holding clamps, bolts, nuts, etc. as required.

Supply of 220 V grade 10 sqmm 2 core aluminium cable ISI mark

Supplying and erection of stay set complete (galvanised) with 19/20 mm dia x 1.8 metres long stay rod, anchor plate of size 45 cm x 45 cm x 7.5 mm, thimble, stay clamps, turn buckle (20 mm x 60 cm), 7/4.00 mm dia G.I. stay wire and strain wire and strain insulator etc in cement concrete 1:3:6 (1 cement : 3 coarse sand : 6 graded stone aggregate 40 mm nominal size) foundation including excavation and refilling etc. as required.

Supplying and erection of galvanised ‘D’ iron clamps complete with shackle insulator (100 mm x 110 mm), G.I. bolts, nuts and washers, coach screw etc. as required 220V grade.

Supplying and erection of 100 mm x 80 mm pin insulator complete with G.I. spindle and nuts etc. as required 220V grade.

Erection of ACSR conductor of 7/3.35mm to 7/4.00 diameter and above including binding etc. as required.

Supplying of channel iron 75 mm x 40 mm x 6 mm (7.14 kg per metre) cross arm for 2 wire over head line complete with clamps, bolts, nuts and washer etc including drilling of holes for insulator pins etc (as per drawing) and painting with and finished paint as required.

Supplying of channel iron 75 mm x 40 mm x 6 mm (7.14 kg per metre) cross arm for 4 wire over head line complete with clamps, bolts, nuts and washer etc including drilling of holes for insulator pins etc (as per drawing) and painting with primer and finished paint as required.

Erection of angle iron/ channel iron cross arm on wood/RCC/PCC/ steel tubular/ rail pole etc. as required.

Providing, laying and fixing following dia G.I. pipe (medium class) in ground complete with G.I. fittings including trenching (75cm deep) and re-filling etc. as required : 50mm dia.

Providing and fixing C.I. 50mm dia flanges.

Welding.

Plate 4” jamming with nut & bolts below tower.

Cutting

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 metre long etc. with charcoal/ coke and salt as required.

Tested and certified by CPRI (Central power research institute), Govt. of India for impulse current of (8/20us) in 70KA with 5 positive and 5 negative impulse. No external power supply will be provided. Protection radius upto 52 mtr. in level-3 and 57 mtr. in level-4, minimum height 5 mtr. of lighting arrestor with elevation rod, ESE lighting arrester to be stainless steel location

Providing and fixing of 6 digit non resistible lighting event counter with IP67 enclosure to count lighting strike.

Erection & maintenance of free earthing with following materials : Earthing electrode (outer dia 76mm and inner dia 40mm and strip size 14 x 6.3 mtr. long or 17.2 sqmm dia 3 mtr. logn copper bonded rod).

Providing of back fill compound 2 bag per site (25 Kg. per bag).

Providing and fixing 70mm x 6mm G.I. strip as required (approx 20 mtr. for each site).

Installation charge for ESE type lighting arrestor advance lighting arrestor.

Plant Mix Method (Construction of granular sub-base by providing close graded Material, mixing in a mechanical mix plant at OMC, carriage of mixed Material to work site, spreading in uniform layers with motor grader on prepared surface and compacting with vibratory power roller to achieve the desired density, complete as per clause 401) : For Grading – II materials.

Providing and laying Pitching on slopes laid over prepared filter media including boulder apron laid dry in front of toe of embankment complete as per drawing and Technical specifications : Stone/Boulder.

Structural steel work riveted, bolted or welded in built up sections, trusses and framed work, including cutting, hoisting, fixing in position and applying a priming coat of approved steel primer all complete.

Brick work with common burnt clay F.P.S.(non modular) bricks of class designation 5.0 in superstructure above plinth level up to floor V level in all shapes and sizes in : Cement mortar 1:6 (1 cement : 6 coarse sand).

Providing and laying in position cement concrete of specified grade excluding the cost of centering and shuttering. All work upto plinth level : 1:2:4 (1 cement : 2 coarse sand : 4 graded stone aggregate 20mm nominal size).

Brick work with common burnt clay F.P.S. (non modular) bricks of class designation 5.0 in foundation and plinth in : Cement mortar 1:6 (1 cement : 6 coarse sand).

Providing and fixing precoated galvanised iron profile sheets (size, shape and pitch of corrugation as approved by Engineer-in-charge) 0.50 mm (+ 0.05 %) total coated thickness with zinc coating 120 grams per sqm as per IS: 277, in 240 mpa steel grade, 5-7 microns epoxy primer on both side of the sheet and polyester top coat 15-18 microns. Sheet should have protective guard film of 25 microns minimum to avoid scratches during transportation and should be supplied in single length upto 12 metre or as desired by Engineer-in-charge. The sheet shall be fixed using self drilling /self tapping screws of size (5.5x 55 mm) with EPDM seal, complete upto any pitch in horizontal/ vertical or curved surfaces, excluding the cost of purlins, rafters and trusses and including cutting to size and shape wherever required.

12mm cement plaster of mix 1:6 (1 cement : 6 fine sand).

Total impact of GST for the purpose of CTC