Annual Job Contract for maintenance of STD Leh

Amount

Jumpers

Fixing of Jumper for 66KV

Fixing of every subsequent Jumper on the same Tower

Replacement of burnt/damaged jumpers and tightening of remaining jumpers on the same tower

Disc/Pin Insulators

Replacement of damaged 66 KV disc insulators Tension String

Replacement of damaged 66 KV disc insulators Suspension String

Replacement of damaged Disc Insulator with hardware fitting in each Tension string

Replacement of damaged Disc Insulator with hardware fitting in each Suspension String

Replacement of 33 KV Pin Insulators/22KV

Power Conductor

Restoration of snapped power conductor.Complete job including mid-span compression joint, laying of conductor, rough sagging, tensioning of conductor, dead-end assembly etc upto span of 500 metre tension to tension point.

Repairing of power conductor when lowering of conductor is necessary

Complete job including laying of conductor, making of compression joint, if any, rough sagging, tensioning of conductor, fixing dead-end assembly atc upto span of 500 metre tension to tension point

Making of Compression Joints

Repairing of damaged conductor by using helical sleeve or bolted sleeve or by shorting method, without lowering the conductor

I) When Defective portion of conductor is to replaced II) Repair sleave/sleaves are to be fixed in a span( long span, spans on towers with consideable level difference) at a point which is not safely accessible even to a highly skilled worker III) Fitting of Repair sleeve Compression type on ACSR Zebra/Panther conductor

Laying, stringing,tensioning and binding of conductor including pre-tensioning for removal of kinks, fixing of hardware fittings and jointing ( Where required for ACSR conductor of sizes) a) Above 50 sqmm but not exceeding 100 sqm ACSR (Single conductor length)

Laying, stringing,tensioning and binding of conductor including pre-tensioning for removal of kinks, fixing of hardware fittings and jointing ( Where required for ACSR conductor of sizes) a) Above 150 sqmm but not exceeding 200 sqm ACSR (Single conductor length)

Stringing and sagging of ACSR Panther conductor in semi-hilly/ water logged areas including rough sagging/tensioning fitting of dead end compression assembly, insulator strings, performed armour rods etc and final tensioning.

Dismantling & re-stringing of Dog conductor of 22 KV line ( Single conductor length)

Urgent/Breakdown maintenance of 66KV Transmission Line including Foundation Back Filling /Soil Removal

Patrolling of 66 KV Sub-transmission line

Patrolling of 22 KV Sub-transmission line

Survey, Route alignment mapping including spotting of Pole locations for 11/33 KV lines

Tower Super Structure

Tightening of Nuts and Bolts of tower superstructure a) Tower weight upto 2 tonnes

Tightening of Nuts and Bolts of tower superstructure b) Tower weight more than 2 tonnes upto 4 Tonnes

Tightening of Nuts and Bolts of tower superstructure c) Tower weight more than 4 tonnes upto 7.5 Tonnes

Tightening of Nuts and Bolts of tower superstructure d) Tower weight more than 7.5 Tonnes ( But excluding special category Towers)

Replacement of missing tower members/damaged tower member/Tightening of Nuts and bolts

Checking/Tightening of Tower Footing Earth bolts and measuring tower footing resistance

Fixing of phase plates, number plates and danger plate on Single circuit Tower

Fixing of phase plates, number plates and danger plate on Double circuit Tower

Fixing of Bird Guards and vibration dampers for Single circuit Tower

Fixing of Bird Guards and vibration dampers for Double circuit Tower

Fixing of Anti-climbing device

Temporary measures for land sliding/sinking of foundation

Repair/Providing of revetment wall

Repair & maintenance of 66 KV Tower Foundation

Branch cutting & Route Clearance

In a corridor width of 8 metre for 33 KV & 66 kv lines

Erection of poles complete with pit excavation in soft soil with 30-60% boulders, refilling the pit with soil and boulders, ramming including fixing of 1 No Cross-Arm, Top pin clamp, Insulators and braces.

Erection of 8 metre ST Pole

Erection of 9 metre ST Pole

Erection of 11 metre ST Pole

Erection of 13 metre ST Pole

Dismantling of Stay-sets

Tightening of loose Guys

Earth Wire

Restoration of snapped earthwire.Complete job including mid-span compression joint, laying of conductor, rough sagging, tensioning of earthwire, dead-end assembly etc upto span of 500 metre tension to tension point.

Repairing of earth wire with lowering of earthwire in necessary complete job including compression joint of required. Laying of earthwire, tensioning, fixing dead-end assembly atc upto span of 500 metre tension to tension

Providing of Earthing of Tower ( Spiral/Pipe/Rod type) including earthwork excavation, backfiling, fixing to the pole and cross-arm etc along with measurement of earth resistance

For Earth wire Stringing ( 60% of Stringing rates for ACSR conductor Panther)

In soft/Ordinary soil

I) Spiral Type With a spiral made of 115 turns of 8 SWG wire placed 1.5 m below ground level including excavation of pit, refilling the same with soft soil

II) Rod type where a 20mm thick 2.3 m long G.I rod is driven from 200 mm below the ground level

In Hard soil

a) 40 mm dia GI pipe/30 mm thick GI Rod 2.3 metre long to be placed 200mm below ground level including excavation of pit 2.5m deep refilling the same with soft soil

b) Earthing in soft/hard soil using the pole pit with spiral/pipe plates

Counterpoise type

Pre-Commisioning tests CTs and PTs

General inspection test, Insulation resistance test, Ratio test by primary injection, Polarity test,Dielectric test,wiring check etc( Per Piece)

Lightening Arrestor ( L.A)

Measurement of IR values, leakage current and tightening of droppers for 66 KV LA

Erection including levelling alignment, fixing including O/H and earth connection (per piece)

Potential transformers(PT), Capacitive Voltage Transformer ( CVT) and Coupling Capacitor (C.C)

Checking of Oil level, measurement of I.R value, filling of nitrogen gas, topping of oil etc and tightening of droppers for 66 KV

Erection including levelling, assembling, fixing including O/H and earth connection( per Piece)

Current Transformer

Checking of Oil level, measurement of I.R value, filling of nitrogen gas, topping of oil etc and tightening of jumpers for 66 KV

Erection including levelling, assembling, fixing including O/H and earth connection( per Piece)

Isolators( Manually operated)

Checking of fixed/moving contacts, cleaning/greasing of contacts, cleaning of post insulators and auxilliary switches, contacts,tightening of nut-bolts etc for 66 KV Motorised/penumatically controlled isolators.

Erection, Testing, Commissioning including levelling, assembling, aligning, contact adjustment and making of all connections along with pre-commissioning tests including contact resistance measurement etc.

Breakers

Inspection and testing of SF6/ VCB breakers including inspection of operating mechanism, Inspection of contacts and adjustment of various clearances

Erection including levelling, assembling, fixing, alignment and termination of control wiring and O/H and earth connection

Dismantling charges = 60% of the corresponding Erection charges

Filling of SF6 gas in Breaker

Power Transformer with OLTC

Inspection and testing of transformer including drying/replacement of silicagel, checking of buccholz relay, surge relay,PRV, conservator oil level indicator,temperature sensors,topping of oil,cooling system, measurement of IR value, dielectric strength of oil, cleaning of transformer/etc Upto and including 5MVA

Inspection and testing of transformer including drying/replacement of silicagel, checking of buccholz relay, surge relay,PRV, conservator oil level indicator,temperature sensors,topping of oil,cooling system, measurement of IR value, dielectric strength of oil, cleaning of transformer/etc Above 5MVA upto and including 10MVA

Complete erection of power transformer including assembly viz fixing of bushes radiators, fans( if any) thermometer, wiring of instrument complete job Above 2.5MVA upto and including 6.3MVA

Complete erection of power transformer including assembly viz fixing of bushes radiators, fans( if any) thermometer, wiring of instrument complete job Above 6.3 MVA upto and including 10MVA

Power Transformer (Detail of work) General inspection by throrugh inspection of each individual part, ratio test by applying voltage on HV side and measuring LV cvoltage on various tap positions I) Polarity and vector group checking, Insulation Resistance test II) HV to LV III) HV to earth IV) LV to earth V) calibration of WTI and OTI VI) Indicators and operation of alarm and trip circuits VII) Testing of Buccholz relay ( alarm and trip circuits) VIII) Sequence test of overall protection/operation IX) DC circuits checking X) Checking Breaker operation XI) Commissioning of Power Transformer XII) Running of Transformer on short circuit by applying low voltage approximately equal to impedance volatge on HV side and short circuiting the LV terminals XIII)Energizing the transformers by applying required primary volatge to it and keeping the transformer on no load to observe the behaviour of transformer. Putting on 25% of the load on the transformer for a period of atleast six hours and observation of oil winding temeprature, increase in the load in steps of 25% till the transformer is fully loaded.

a) 2.5 MVA to 5 MVA

b) Above 5 MVA and upto 10 MVA

Dehydration of Transformer Oil

With Labour cost of Rs 6963 per day subject to filteration for maximum of - 10 days for transformer from 1 MVA to 2.5 MVA

With Labour cost of Rs 6963 per day subject to filteration for maximum of - 15 days for transformer from2.5 MVA to 6.3 MVA

With Labour cost of Rs 6963 per day subject to filteration for maximum of - 20 days for transformer from 6.3 MVA to 10 MVA

Filteration of Power Transformer Oil of 1x6.3 MVA transformer

Replacement of damaged bushing rated for voltage upto and including 66 KV, bushing gaskets etc of power transformer including draining of oil, opening of connectors, dismatling of old damaged components and replacement by a new one, providing connections etc filling of filtered oil( Complete job)

Bus-Bars & Gantry Structure

Replacement of bus-bars of single conductor with size upto 0.4 sq.inch copper equivalent including replacemement of disc insulators if required, tightening of clamps/jumpers/ droppers etc

Replacement of damaged/burnt droppers or jumpers (emergency work)

Replacement of damaged disc insulators

Tightening of all Nut bolts and providing missing bolts and damaged members of 66 KV Bay

Post insulators

Replacement of damaged Post Insulators or providing additional Post Insulators33KV or 66KV Stack/22KV

Installation of post insulator

Earthing

Measuring of earth resistivity,checking of electrical continuity of equipment earthing,tightening of earthing connectors,removal of rust from bolted earth connections and re-tightening of 66 KV composite Switch yard

Erection/Installation of Chemical earthing / conventional

Metering

Installation of meter board/meter box including MCB/ Main switch

Installation of meter 3 phase without CTs

Installation of meter 3 phase with CTs

Sealing of Meters( Body /TCP seal) using lead seals and tusked wire as well as paper seals

11 KV equipments

Installation of 11 KV Lightening Arrestor set ( 3 pieces) including connection to Overhead line and earth

Installation of 11 KV G.O Set with fuse unit/drop ou Fuse set including fixing of cross-arms for mounting the set

Replacement/Repair of 11 KV GO Sets

Installation of Link-set with fuse-set

Fixing of Pre-fabricated brackets and cross-arm bed for placement of transformer( upto 250 KVA)

Mounting of transformer on bed including HV and earth connection Upto and including 25 KVA

Mounting of transformer on bed including HV and earth connection Above 25KVA Upto and including 100 KVA

Replacement of 11 KV Pin insulator

Replacement of 11 KV Damaged Disc insulator in normal areas

Replacement of 11 KV Damaged Disc insulator in Hilly/tough areas

Maintenance/Testing/Replacement of 11 KV Switchgear as per SOW 1) Dismantling,cleaning,greasing and assembling of hand pull out system,racking mechanism of chassis and positioning indicators.Alignment of breaker in panel for smooth racking-in/racking out operation shall be done and adjustments shall be done if required. 2) Cleaning of 11 KV Panels by way of vaccum cleaner/air blower. 3) Cleaning and tightness checkings of CTs,PTs and control wiring connections in terminal blocks. 4) Cleaning of contacts,checking of vaccum interrupter, tripping coils, closing coils and replacement if required 5) Checking of Mechanical tripping mechanism and adjustment if required.

Replacement of faulty relay, CTs, PTs, burn out fuses, MCBs and other defective components of 11 KV Board after carrying out control circuit checking.

HT/LT Power/Control cable

U/G laying of cables 3/3.5 core in excavated trench including covering the same with 50 mm thick layer of sand on all sides ( Each of 50 mm thick depth) and provisioning of one layer of bricks on the upper layer and refilling with excavated earth a)25 mm2 upto and including 95 mm2 cable

b) Above 95 mm2 upto and including 300 mm2 cable

c) Above 300 mm2 upto and including 630 mm2 cable

Laying/Fixing of Control cable upto 2.5 sqmm and any no of cores on surface/in the existing masonry duct if required.

Laying of control cables ( all types) on trays and racks in cable ducts including binding with PVC belts/binding wires, peeling of insulation and fixing of proper size thimbles, connecting the cable after identification of each core to both ends i.e to Panel, CT,PT operation of 66 KV Outdoor breakers, alarm and annunciation Complete job for one transformer Bank upto 10 MVA capacity

Removal of false flooring/Tray Cover/Conduits etc

Laying of 6.6/11/33 KV cables in duct, mounting on the supports including all the electrical accessories 70sqmm to 300sqmm

Laying of 6.6/11/33 KV cables in duct, mounting on the supports including all the electrical accessories Above 300sqmmupto and including 630sqmm cable

Cable end termination using Epoxy including peeling of cable and fixing of proper size thimbles ( Set of 3/3 1/2 core)

LT cables a) 25sqmm to 95sqmm

b) Above 95 mm2 upto and including 300 mm2 cable

c) Above 300 mm2 upto and including 630 mm2 cable

HT cables( 6.6/11/33 KV) 70sqmm to 300sqmm

Above 300 mm2 upto and including 630 mm2 cable

Crimping of thimbles to the cable ends for replacement/repair works

a) 25 mm2 up to including 70 mm2

b) Above 70 mm2 upto including 185 mm2

c) Above 185 mm2

Fixing of Power Cable kits Indoor and Outdoor type upto 300 sqmm

Installation of MCCB with incoming and outgoing connection for replacement works including dismantling

Checking of Switch Yard lightening and replacement of any defective parts complete job

Repair/Replacement of Damaged Trench cover

Repair and maintenance of ACDB/DCDB

Installation of battery bank including wiring to panels and Battery Charger 30 V D.C

Routine Maintenance of 24 V Battery Bank & Battery Chargers

Cleaning of switchyard and control room

Panels

General inspection test, wiring test, Insulation resistance test ( On AC-DC circuits and between wires and earth) operation ,Indicator test

66/33/11/6.6 KV/22 KV Panels

Transformer Panel including Breaker

Placement of 66/11/6.6/22 KV Panel on cable duct including levelling, alignment and fixing,complete job per panel (Incoming/Outgoing)

Installation of Control and Relay panels including mounting and connecting different equipments viz Ammeter,Voltmeter, PP Meter, KVAR, relays, Indication lamps, Alarm fuses etc complete job for incoming/Oiutgoing panels/transformer panels/OLTC panels

Relays

Complete testing of relays including physical inspection of relays, setting of testing kit, interconnection between various parts and injection points on panels. Secondary injection on various current taps and recording the observation thereof. All modifications necessary to achieve desired results to be in compliance with recommended/calculated settings per one sub-station

Loading,Unloading & Carriage of Sundry Material

Loading ChargesSorting in Stores,collection, carriage up to 25 m and loading of sundry material e.g Steel,CGI sheets,nuts, bolts, hardware, fittings, cross-arm etc

Unloading of Sundry material and carriage to the Sub-station up to a distance of 25 mtrs

M/S ZARDEEP ENTERPRISES

himalayan renewable energy and construction firm