REPAIRS/MAINTENANCE OF VOLTAGE STABILIZER, AIR COMPRESSORS OF DIFFERENT CAPACITIES, REPAIR AND REPLACEMENT OF HT UG CABLES AND ALLIED ITEMS AT AF STATION NALIYA

Amount

Dehydration/ Filtration of stabilizer oil / HT switch oil of exisitng stabilizer of 30 kVA to 300 kVA installed at various locations, with portable plant to improve the dielectric strength 40 to 60 kV during filling of oil, after filtraction, incl testing of dielectric strength after dehydration at site. Note: contractor shall produce the oil tests showing oil test results before and after filteration complete all as specified and directed.

Supply and filling of oil in voltage stabilizer/transformer at site for topping up the level of oil having dielectric strength 40-60 kV after filtraction complete all as specified and directed. Make: Power/ Insole/ Universal. Note: Oil shall be supplied in sealed container.

Labour and transporting charge for carying unserviceable voltage stabliser/ air compressor/UPS control panel of any capacity by disconnecting electrical connections and carrying to local workshop for repair/ rewinding. Note : 1. The cost of transporting veh, loading/ unloading of plant is deemed to be included in unit rate. 2. The cost of winding will be measured and paid under relevent item.

Labour for opening of servo voltage stabliser of any capacity at workshop or at sub station after disconnecting electric and earth connection, drain out transformer oil and kept in closed container for reuse, removing of top cover of stabliser, cleaning of spare parts and wshed down with the help of spray of clean oil and reassembling the stabliser after replacement of unserviceable parts refilling of transformer oil after checking dielectric strength and connecting electric connections and testing compleate all as specified and as directed. Note:- If transformer oil of stablizer found less than required quantity the same shall be filled with new oil and will be measured and paid separately under relevant items

M&L for rewinding old/burnt out coils by super enameled copper winding wire of appropriate size of super quality (as per existing material & size of voltage stabliser coils and reciprocating motor) including, insulating, varnishing, heating, and reassembling coils in position, etc for 315 KVA voltage stabliser or motor.

S&F in repair electronic control circuit board for servo voltage stabilizer (PCBs) suitable for stablizer of capacity up to 200 KVA all as specified and directed.

S&F in repair servo motor for servo operation of capacity 3 Kg to10 Kgs torque as per site requirement suitable for voltage stabliser of capacity upto 300 kVA all as specified and directed.

S&F in repair servo motor for servo operation of capacity 10 Kgs torque as per site requirement suitable for voltage stabliser of capacity upto 300 kVA all as specified and directed.

S&F in repairs drive assembly of suitable for servo motors of voltage stabliser upto 200KVA all as specified and directed.

S&F in repair Trigger/Control transformer of suitable capacity for servo voltage stabilizer complete all as specified and directed.

S&F in repair dimmer of suitable capacity for servo voltage stabilizer of capacity upto 200KVA complete all as specified and directed.

S&F in repairs/replacement of LED indicator lamps of suitable capacity all as specified and directed..

Supply & fix top cover gasket made up of 5 mm thick cork sheet all as specified and directed.

S&F in repairs drain gun metal gate valve 20/25mm dia as suitable for drain out oil from voltage stablizer complete all as specified and directed.

M&L for preparing old painted surface of voltage stabliser outer surface/LT Panel board/Air compressor of any size and capcity by thoroughly cleaning the surfaces to remove dirt, dust, rust flakes and paint flakes, using wire brush or sand papers, damp cloth or as directed. Priming the surface with anti corrosive primers using suitable sprayers. Applying automotive paint using sprayers till glossy finish is obtained, complete all as per manufacturers instructions and as directed. Make: Dupon / Asian / Berger / Nerolac

M&L for servicing air compressor by cleaning all external parts, disconnecting electric connection greasing all moving parts checking electric connection checking serviceability and reconnecting cable connection complete all as specified and directed.

S&F DOL starter 7 to 10 HP as suitable at site all as specified and directed.

M&L for reair/replacement of air pressure gauge as per existing pattern complete all as specified and directed.

Disconnecting electric connections, dismounting of centrifugal electric motor 2 to 5HP of air compressor transporting to work shop for repair/replacement of burnt out copper winding, motor bearing, and re assembling after repair works and refixing in existing position and testing complete all as specified and directed. Note: Winding materials, bearing required in repair shall be measure and paid under relevent item

M & L for complete opening of 2 to 5 HP motor for repair/ replacement of worn out winding and rewinding with suitable gauge copper wire varnishing the class 'B' insulation ad reassembling the same complete all as specified and directed,

S&F in repair ball bearing for 2 to 5 HP centrifugal motor after taking out burnt/ wear & Tear unserviceable ball bearing as per existing sample complete all as specified and directed

S&F in repairs lead Acid maintenance free batteries suitable for 30KVA UPS of 80Ah, 12 volt of make Exide/Amaron/Prestolite etc

S&F in repair control circuit board suitable for 30KVA on line UPS complete all as specified and directed.

M&L for servicing / inspecting of UPS control panel by authorised person of OEM for maintennce thoroughly checking all internal circuit wiring, If any minor part/ spares required to be changed by contractor and major part/spare shall be measures and paid separately. Note: Visit should be by Authrised person of OEM,

Excavation in trenches not exc. 1.5m wide and not exc. 1.5m in depth for foundation etc or for shafts, wells, cesspits, manholes pier holes etc not exc. 10sqm on plan and not exc 1.5m in depth and getting out in soft/loose soil complete all as specified and directed by Engineer-in-Charge.

Returning filling in soil and including spreading leveling watering and well ramming in layers n.exc. 25 cm thick

Removing excavated soil to a distance n.exc. 50 mtr and depositing where directed at a level n.exc. 1.5m above the starting points.

M&L for sand cushioning for UG cables using dry sand; gently punning down all as specified and directed. Note: For measurement purpose punned thickness shall be considered

M&L un-reinforced precast concrete cable covers class HV type I, flat size 300 x 180 x 40 mm laid transverse to cable all as specified and directed.

Relaying of un-reinforced precast concrete cable covers class HV type I, flat size 300 x 180 x 40 mm laid transverse to cable all as specified and directed.

Taking out old unserviceable HT cable of any size any type from trench/poles etc and keeping aside for segregation of serviceability. Serviceable cable will be re-laid at same place or other place as required complete all as specified and directed.

Supply & Fix in replcement of HT 11 KV 3 core 95 Sqmm cable in trenches/fixed to poles/wall, XLPE insulated, screened, PVC bedded, galvanised steel strip or wire armoured, electric power cable( HT ), heavy duty with aluminium conductor, 11000 volts (earthed) grade 95 Sqmm x 3 core all as specified and directed by Engr-In-Charge. Note: Excavation, earthwork, cable joints, sand coushing & cable cover will be measured and paid separately if required

Relaying the serviceable HT 11 KV 3 core 95/120 sqmm of size cable in trenches/fixed to poles/wall, XLPE insulated, screened, PVC bedded, galvanised steel strip or wire armoured, electric power cable (HT), all as specified and directed by Engr-In-Charge. Note : Excavation, earth work, cable joints, sand coushing & cable cover will be measured and paid separately.

Supply, jointing and testing indoor type cable termination (heat shrinkable) suitable for 3 core, 11 KV / underground electric cable, XLPE cable of size 120 sqmm extra terminal length as reqired on ground complete all as specified and directed.

Supply, jointing and testing outdoor type cable termination (heat shrinkable) suitable for 3 core, 11 KV /underground electric cable, XLPE cable of size 120 sqmm, extra terminal length as reqired on ground complete all as specified and directed.

Supply, jointing and testing of cable joint kit of 11 KV grade cable for straight through heat shrinkable type joint complete with jointing material and accessories suitable for 3 core XLPE armoured Aluminium conductor cable of size 120 sqmm, complete all as specified and directed.

Supply, jointing and testing indoor type cable termination (heat shrinkable) suitable for 3 core, 11 KV /underground electric cable, XLPE cable of size 95 sqmm, extra terminal length as reqired on ground complete all as specified and directed.

Supply, jointing and testing outdoor type cable termination (heat shrinkable) suitable for 3 core, 11 KV /underground electric cable, XLPE cable of size 95 sqmm, extra terminal length as reqired on ground complete all as specified and directed.

Supply, jointing and testing of cable joint kit of 11 KV grade cable for straight through heat shrinkable type joint complete with jointing material and accessories suitable for 3 core XLPE armoured Aluminium conductor cable of size 95 sqmm, complete all as specified and directed.

M& L for cutting under the road /pavement /hard standing or in any other situation with the help of manual labour (bocki) for crossing of U/G cable through it and making both the end good complete all as specified and directed.

Supply and laying galvanised steel water tubing, light grade, IS-1239 marked with all fittings IS marked and laid in trenches under roads, through drains, fixed to poles/walls with required size flat iron clamp bolts, nuts and washers, for cable protection of 80 mm dia, including taking out old/existing pipes, complete all as specified and directed.

M & L for erection of Precast HT cable route/path indicator, made out of PCC 1:2:4 ,type Bo,12.5 mm graded stone aggregates of size 100 Cm (Height) x 30 Cm (Width) x 8 Cm (Thichness), painted with Red colour lettering synthetic paint and letters 4 inch "DANGER, HT 11 KV CABLE" to be written with white colour lettering synthetic paint and embedded in PCC block 1:3:6 type C2 (using 40mm graded aggregate) of size 30cm x 15cm x 20cm including necessary excavation for PCC block placed at interval of every 50 M ,complete all as specified and as directed.

Shifting of Voltage stablizer/RMU/LT Panel from one place to another place by disconnecting its all electrical connections transporting though their own veh and loading unloading etc. Note- The cost of the transporting veh and crane is deemed to be included in unit rate.

S&F in repairs Automatic Power Factor Correction (APFC) Panel for 3 Phase, 415 V & 50 Hz system of capacity 70 KVAR with incoming MCCBs of suitable size complete all as specified and directed

S&F in repairs Automatic Power Factor Correction (APFC) Panel for 3 Phase, 415 V & 50 Hz system of capacity 150 KVAR with incoming MCCBs of suitable size complete all as specified and directed

S&F in repair Capacitor contactor 25 KVAR suitable for 25 KVAR capacitor including connecting in position complete all as specified and directed

S&F in repair capacitor 25 KVAR including connecting in position complete all as specified and directed

S&F in repair MCB TP 32 Amps including connecting in position complete all as specified and directed.

S&F in repairs intelligent power factor controller having 1CT inclding connecting up all connection etc complete all as specified and directed.

M&L for earthing complete with copper earth plate electrode 600mmx600mmx3.15mm thick, thick buried directly in ground vertically to a depth not less than 2.25 mtr deep below GL with top edge of the plate not less than 1.50 mtr below normal GL and connected to earth plate . Earth plate surrounded by 15 cm thick packed layers of charcoal dust and common salt all around the earth plate and connected to earth lead of copper strip 20x3 mm by means of bolts, nuts, check nuts and washers of GI or steel and thimbles and other end of the earth wire connected to DB and protected by 50mm dia galvanized iron or steel pipe light grade and 20mm dia water pipe GI medium grade with funnel and wire mesh, including all necessary excavation and earth work PCC chamber in cement concrete 1:3:6 type C-2 and RCC cover and all as shown in electrical plate No 3 of MES schedule Pt I of 2009 and also including making test point for testing of earthing made out of gun metal or phosphorous bronze size 75x75x25 mm complete for DB and Industrial socket. Note : 1. Charcoal dust and common salt shall be filled in layers of 15 centimeters all around the earth plate. 2. Copper strip will be laid connected to test point through plinth protection necessary cost of repair to plinth protection and brazing and welding deemed to be included in the item copper strip beyond 7.5 RM will be measured and paid separately).On completion the earth resistance test to be carried out. If desired value of resistance not obtained, the earthing will be re-done at no extra cost.

NEELKANTHA ASSOCIATE

SHOBHIT BUILDERS

Sukhi Electricals

M/S JAGDAMBA ENTERPRISES

NKS INFRATECH