REPAIR/ MAINT OF TRANSFORMER/HT OVERHEAD LINE, LIGHTING ARRESTORS, INSULATORS, HT UG CABLES AND ALLIED WORK AT AYODHYA UNDER AGE (I) AYODHYA.

Amount

Excavation in trenches, not exceeding 1.5 meter wide and not exceeding 1.5 meter in depth for foundation of poles, stays or for taking out/laying of cables and getting out in soft/loose soil complete all as specified and directed by Engineer-in-Charge.

Returning, filling in, including spreading, levelling, watering and well ramming in layers not exc 25cm in soft/loose soilcomplete all as specified and directed by Engineer-in-Charge.

Removing excavated materials (soil) n. exc 50m and depositing where directed at a level n.exc 1.5m above the starting point complete all as specified and directed by Engineer-in-Charge.

M&L for sand cushioning to underground cable with clean dry river sand complete all as specified and directed by Engineer-in-Charge.

Supply and laying Un-reinforced precast concrete cable cover 'factory made' of class HPV, Type 1 with peak of size 300 mm x 180 mm x 40 mm complete all as specified and directed by Engineer-in-Charge.

Dismantling insulators of any type and any size from HT poles and removed from the site complete all as specified and directed by Engineer-in-Charge.

M&L in replacement for Disc insulator with hardware fitting porcelain vitreous,Malleable cap, sannding ,Ball pin, Bituminous paint for 11000 volts complete all as specified and as directed by Engineer-in-Charge.

M&L in replacement for post insulator porcelain vitreous,white,brown or green insulator incl one galvanised mild steel spindle two galvanised iron washer and one galvanised iron nut for 11000 volts grade complete all as specified and as directed by Engineer-in-Charge.

M&L in replacement for pin insulator with G.I. Pin porcelain vitreous, white, brown or green insulator incl one galvanised mild steel spindle two galvanised iron washer and one galvanised iron nut for 11000 volts grade complete all as specified and as directed by Engineer-in-Charge.

Supply & laying steel tubing, galvanized light grade bores, for passing HT cable under road or PCC floor or fixed on wall/on pole or drain etc or whenever protection is required including necessary clamps and nut bolts with GI fitting complete all as directed and specified as follows:-

GI Pipe 100 mm dia.

GI Pipe 80 mm dia.

Re-Stringing, tightening of existing ACSR conductor of any size on HT poles including necessary aluminium binding wire, connectors, PVC sleeves for jumpers etccomplete all as specified and directed by Engineer-in-Charge.

Hiring of cable fault detector, to detect exact position of fault for XLPE /PVC HT cable, 11000 Volts grade heavy duty aluminium conductor of any size complete all as specified and directed by Engineer-in-Charge.

Horizontal boring in soft/loose soil/under roads of any width by manual arrangements for inserting GI pipe up to 100mm bore for passing cables complete all as specified and directed by Engineer-in-Charge. Note : GI pipe shall be measured and paid separately.

Supplying, laying, commissioning & testing HT cable 95 Sqmm 3 core, 11000 Volts grade (Earthed), XLPE insulated, PVC sheathed heavy duty, armoured with multi stranded aluminium conductor all as per IS 7098 (Part-I) 1998, underground laid in trenches, ducts, pipes or on poles, etc including taking out old unserviceable cables, protection pipes/bricks or precast concrete cable cover etc complete all as specified and directed by Engineer-in-Charge.

M&L in repair indoor type cable end termination joint heat shrinkble type suitable for HT UG cable of size 95 sqmm 3 core 11 KV of aluminiun conductoe complete all as specified and testing after jointing. Make - Denson/raychem/mahindra

M&L in repair cable jointing kit for 11 KV (Earthed) grade cable for outdoor termination heat shrink type joint complete with jointing material and accessories suitable for 3 core XLPE armoured aluminium conductor of size 120 Sqmm complete all as specified and directed by Engineer-in-Charge. Make - Denson/raychem/mahindra

M&L in repair out door type cable end termination joint heat shrinkble type suitable for HT UG cable of size 95 sqmm 3 core 11 KV of aluminiun conductoe all as specified and testing after jointing. Make-Denson/raychem/mahindra

M&L in repair indoor type cable end termination joint heat shrinkble type suitable for HT UG cable of size 120 sqmm 3 core 11KV of aluminiun conductoe all as specified and testing after jointing. Make-denson/raychem/mahindra

S&F in replacement of Cable termination heat shrinkable jointing kit for 11 KV straight through type suitable for HT cable XLPE insulated aluminium conductor of size 95 Sqmm 3 core complete all as specified and directed by Engineer-in-Charge.

M&L for Earthing complete with galvanised steel earth plate electrode 60x60cmx 6 mm thick burried directly in ground (earth pit not less than 2.25 mtr deep below ground level) with top edge of the plate not less than 1.25 mtr below normal ground level,connected to galvanised 32 mm x 6 mm earth strip by means of nuts,bolts, washer of GI steel as shown on electrical plant No 3 of MES schedule part I connected to earthing test point and testing on completion with including necessary excavation and earth work, earth electrode, earthing lead from electrode to equipment /substation , adequate quantity of charcoal dust and comman salt , test point pcc (1:3:6) type C-I (using 20mm graded black trap/granite/basalt stone aggregate) for earth pit with 40x40x6mm mild steel angle iron frame for cover,pre-cast RCC (1:2:4) type B-I (using 20mm graded black trap/granite/Basalt stone aggregate) 40mm thick cover, reinforced with 6mm dia bars 3 Nos both way with 12mm dia round bar handle, GI light grade watering pipe 15mm dia with funnel and wire mesh, and 40 mm dia GI light grade earth lead protection pipe, 7.5 mtr only from the top of earth electrode are deemed to be included under this item and additional earth lead, if any, required at site shall be measured and paid for seperatly under appropriate item of schedule `A'. complete all as specified and as directed by Engineer-in-Charge.

M&L for Earth continuity conductor or main earthing lead fixed to walls or to poles or any other indicated situation for loop earthing with 32mm x6mm earth strip complete all as specified and as directed by Engineer-in-Charge.

S&F in repairs Air brake gang operated switch HT 11 KV , TP with 09 insulators, 200 Amps capacity currents rating with 06 post insulators type dropout fuse assembly on 11 kv insulators with fuse carriers & fuse element mounted on steel frame horizontally operated rotary type, with operating mechanism consisting of operating rod 25 bore light grade GI pipe of suitable length worked from ground level and applaying of grece for moveing parts and Jelly for male and female contact parts with locking arrangement, FI clamps 50mmx6mm including MS channels MC-100 for fixing GOD unit including nuts, bolts, and washers complete all as specified and directed by Engineer-in-Charge.

On site Repair/Greasing for smooth function 11 KV Air break gang operating switch Triple pole with mechanically vertical operated, mounted on insulator and steel frame operating mechanism worked from ground level required insulator any other item is taken from above item No serviceable materials and applaying of grece for moveing parts and Jelly for male and female contact partscomplete all as specified and directed by Engineer-in-Charge.

M&L for Lightning arresters expulsion type complete with all fittings, transmission class, discharge capacity 65 kilo amps suitable for 11000 volts complete all as specified and directed.

S&F in replacement in position, of GM Gate valve 25 mm dia with with 150mm long nipple of GI for transformer including welding, brazing etc complete all as specified and directed by Engineer-in-Charge.

S&F in replacement in position, of GM Gate valve 40 mm dia with 150mm long nipple of GI for transformer including welding, brazing etc complete all as specified and directed by Engineer-in-Charge.

S&F in replacement in position of following items for transformer including welding, brazing etc complete all as specified and directed by Engineer-in-Charge:-

Breather assembly transparent type filled with silica gel suitable for transformer of capacity up to 200 KVA.

Breather assembly transparent type filled with silica gel suitable for transformer of capacity 250 KVA to 630 KVA.

Temperature gauge 100 mm dia. with dual calibration in degree Celsius and Fahrenheit, range 0 to 100˚c and equivalent degree Fahrenheit.

Taking down carefully transformer any capacity, any make, any type from pole/ plinth by dismantaling, dis-connecting HT & LT sides, earthings of transformer, supporting angles/crossarms, Shifting / transporting transformer carefully from the site to the workshop and refixing at site after repair with all electrical connection complete etc all as specified and directed.

Dismantaling top cover of transformer of capacity upto 630 KVA , any make for repair / replacement of HT / LT bushing of transformer , or for replacement of top cover gasket or for inspection of transformer or for minor internal repairs of transformer all including draining carefully transformer oil as required / upto the required level and refilling the same, re fitting the top cover of transformer after completion of the work including testing complete etc all as specified and directed. Note - Spare parts will be measured and paid seperatelly

Suuply & fix in repair HV Bushing with terminal rod complete all as specified and directed.

Suuply & fix in repair LV Bushing complete all as specified and directed.

Suuply & fix in repair Filter valve complete all as specified and directed.

Suuply & fix in repair Arching Horn complete all as specified and directed.

Rewinding of unsv/burn 11/0.433 KV, HV coils with supper enamelled copper wire as per existing gauge including drying varnishing and making connections complete in all respects.

Rewinding of unsv/burn 11/0.433 KV, LV coils with supper enamelled copper wire as per existing gauge including drying varnishing and making connections complete in all respects.

M&L for painting of the transformer of following ratings with one coat of first quality synthetic enamel paint by spraying gun after preparation of old steel surfaces including writing SM/ MES numbers all as directed by Engineer-in-charge.

up to 160 KVA.

250 KVA to 630 KVA.

Repairs to the leaks of transformer from tap switch/ fins/ any pats of body, by replacing gasket / seal , or Repairs to the leaks of transformer body / fins, by welding / brazing etc complete all as specified and directed.

Servicing/ Calibration 11 KV HT RMU, outdoor type 3 way complete including the following (a) taking out 11KV HT mechanism of of RMU 630 Amp rating trolley from HT Panel after switching off electric supply. Checking of all mechanical/electrical/control system for proper functioning e.g. spring charge system, triping system, remote operation, indication system,etc including checking the quality of insulating material, complete.Cleaning & servicing the fixed/ moving contact & blowing out dust and applying the proper lubrication/ greasing and reassembling the including motorised operatin and connection to HT panel complete faulty parts to be replaced where reqd complete all as specified and directed by Engineer-in-Charge.

Supply only spring mechanism motor & gear set complete all as specified and directed.

Supply only On push botton mechanism Intercity & mechanism complete all as specified and directed.

Supply only Off push botton mechanism Intercity & mechanism complete all as specified and directed.

Supply only O/c and E/F relay (self power) complete all as specified and directed.

Supply and fix in repair battery inside RMU power pack back up of capacity 12 volt 14/12 AH including removing old battery etc complete all as specified and directed.

S&F (in replacement) indication lamp (LED type) Red or Yellow or Green colour suitable for 30 volts DC (as required at site) complete all as specified and directed by Engineer-in-Charge.

Supply, fixing, connecting and testing spring charging motor (Universal motor) for outdoor type, 33 KV, VCB,operated on 230 volts AC/ DC,with charging time less than 15 sec of approved rating complete all as specified and directed by Engineer-in-Charge.

S&F in replacement vaccum interrupter unit of 33 KV out door type VCB complete with insulator and assembly 630 amps rating , all including assembling, testing and commissioning at site complete all as specified and directed.

Supply and fix in repair Ampearmeter with digital display suitabale for measuring 11 KV electrical parameters fixed in existing panel board etc complete all as specified and directed.

Supply spreading and leveling of stone aggregate 40mm grade at MRS area complete all as specified and directed.

Supply and laying synthetic rubber insulated mats 2.5mm thick for voltage upto 11 KV for electricla purpose as per IS 156 52 - 2006 (superseding IS 5424) suitable for electrical shock safety of sizes 2mx1m. complete all as specified and directed.

RAMESH ENTERPRISES

Shree Kanth Technologies

Hindustan Power Corporation