EXTENSION WORK 220 KV SARNATH-II BAY AT 220 KV SUB STATION GAJOKHAR VARANASI UNDER ELECTY. TRANS. DIVISION-I, VARANASI

Amount

Shifting and loading of 5 MT 40mm dia MS round bar on trailer/truck at 220 KV S/S Harhuwa.

Proper and safe carriage of 5 MT 40mm dia MS round bar from 220 KV substation Harhuwa to 220 KV substation Gajokhar by private trailer/truck, distance approx. 24 KM.

Unloading and shifting of 5 MT 40mm dia MS round bar from trailer/truck at 220 KV S/S Gajokhar and its proper stacking there.

Laying of 40 mm dia MS round bar 0.9 Meter below ground level including cutting, bending, straightening, welding, and painting, excavation, back feeling & all other associated work to complete the job satisfactorily as per direction of Engineer in charge (M.S. round bar shall be provided by department).

Fabrication of electrode by 40 mm dia MS rods in length of 3 mtr by making an edge at one end for ease in piercing below 1200mm into the ground using wooden hammer completely at all the junction points along with welding & painting at outer periphery of earth mat as per relevant IS (M.S. round bar shall be provided by department).

Interconnection of the earth mat laid with the existing earth mat of the 220 KV S/S Gajokhar at 10 specified point by welding as that complete earth mat acts in coherent manner to provide proper earthing of the substation.

Sorting counting shifting of GI structure to loading point and loading on private vehicle at EFU Naini, Prayagraj (15.5MT Approx.).

Safe Carriage of GI structure(15.5MT Approx.) from EFU Naini Prayagraj to 220 KV S/S Gajokhar (Approx distance 180KM) through private vehicle to be provided by the contractor.

Unloading of structure(15.5MT Approx.) from vehicle, its sorting counting and proper stacking at the premises of 220 KV substation Gajokhar at suitable place.

Erection of structure parts of Main & Auxiliary structure. The job consist to shifting of all material, structure parts, nut bolts washers etc from store to work site, erection of structure as per relevant drawing and practices.

Stringing of bus bar/Jack bus of all phase using ACSR Moose conductor with work of interconnection with existing bus including shifting of all materials from store i.e. tension fitting clamp insulator etc with all cost of men material and T&P etc required for completion of job.

Erection of following equipments including shifting from store to erection site including all other associated works to complete the job satisfactorily.

220 KV CVT

220 KV LI (with earth switch & Including Post Insulator)

220 KV BI(Including Post Insulator)

220 KV TI(Including Post Insulator)

220 KV Post Insulator

220 KV CT JB

220 KV CVT JB

220 KV DF Control Panel

220 KV Relay Panel

Interconnection/Jumpering of bus bar to equipments and equipment to equipment(CT,CVT,LA,LI,BI,TI etc) by single moose conductor to Line conductors of all phases.

Laying of following sizes of control cable in the cable trenches from C&R Panel to various type of equipments, junction boxes in switch yard as per cable schedule, its clamping/binding at every two meter distance with aluminium sticks 25x1mm size including carriage of cable drums from store to laying site and shifting back to store and all other associated work to complete the job satisfactorily as per tech. specification:

2x2.5mm²Control Cable

4x2.5mm²Control Cable

6x2.5mm²Control Cable

10x2.5mm²Control Cable

Termination of following size of cable as laid above as per cable schedule including making necessary holes in glands plate or boxes where ever required. Supply and fixing of cable glands of appropriate size. Supply and providing ferrules and No. for each core of cable and its termination with crimping type lugs of Dowell/Tension and all other associated work to complete the job satisfactorily as per tech. specification:

2x2.5mm²Control Cable

4x2.5mm²Control Cable

6x2.5mm²Control Cable

10x2.5mm²Control Cable

Cutting straitening bending laying of 50x6 mm MS flat for earthing of main structures including welding with main earth mat below 500-700 mm of ground level with object to earth excavation of trenches its back filling, painting with one coat of red oxide primer and two coats of synthetic enameled green colour with all cost of MS flat, Paint, T&P required for completion of work.

Cutting straitening bending laying of 75x10 mm MS flat for earthing of auxiliary structure, equipments etc including welding with main earth mat below 500-700 mm of ground level with object to earth excavation of trenches its back filling, painting with one coat of red oxide primer and two coats of synthetic enameled green colour with all cost of MS flat, Paint, T&P required for completion of work.

Delta earthing for LA consisting of 03 nos. 3 mtr long electrode, its piercing inside ground and connection all 03 nos. electrodes with 75x10 mm MS flat and connection of same with above LA including cost of all MS flat but excluding the cost of MS round bar which will be provided by department.

Fabrication of display board made of M.S. angle iron 50x50x6mm, 3 long support and M.S. board of 2'x1' M.S. sheet 18 gauge and M.S. flat iron 25x6mm size 2'x1' welded on M.S. sheet after then M.S. pipe of 1.5" dia. fitted around M.S. flat on the sheet board and 0.5" dia M.S. pipe 4" long welded in M.S. angle iron from two places at one side and two at other to complete the display board. Digging pit size 2'x2'x3' and grouting above board with 1:2:4 cement, ballast, sand ratio and making plinth of size 1'x2'. Board shall duly painted by yellow color and equipment name shall be written in black.

Supply and fixing of 400W HPSV lamp fitting with complete connection and laying of required cable(Provided by department) including supply of junction box having MCB and neutral link for its connection at different location advise by JE in charge.

Supply

Tension type gun fitting suitable for 120kN disc insulator complete with all accessories suitable for zebra conductor.

Suspension type gun fitting suitable for 70kN disc insulator complete with all accessories suitable for zebra conductor.

120 KN Disc Insulators

PG clamp Moose to Moose made of LM-6 alloy four bolted type complete with good quality nut bolt washer and spring washer exactly as per sample in ready to use condition.

PG clamp Moose to Zebra made of LM-6 alloy four bolted type complete with good quality nut bolt washer and spring washer exactly as per sample in ready to use condition.

Meena Elect & Engg. Works