REPAIR/ MAINTENANCE OF HT SYSTEM INCLUDING HT SWITCH GEARS, TRANSFORMERS AND CONNECTED WORKS AT CHAF BANGALORE

Amount

M & L for locating UG cable fault using Microprocessor based fault locator suitable for low/medium and high volage up to 11KV , XLPE/PVC/PILC of Al/Cu cables under trenches/RCC surface & on wall for finding OC/SC/Flahing faults with any one of the suitable methods Time domain reflectometer method (TDR)/Secondary impulse Method (SIM) /Impulse Current method (ICM)/decay Method to achieve pin point fault location up to 5 Km distance as all as specified. (Note : quoted cost deemed to be included all accessories , equipments and labour cost)

M & L for filteration and dehydration of transformer oil on line by using streamline filteration plant the die electric strength to be brought to not less than 60 KV ( at 2.0mm gap for 1 minute) and testing the oil sample after dehydration Note: - (i) Test result before and after filteration to be recorded as per the sample provided by Engr-in-charge. (ii) The rate quoted deemed to be included for taking necessary connection and the connection to filteration plant from transformers and switchgear oil duly removing the inlet and outlet connections. (iii) For topping up transformer oil will be measured and paid separately under relevent items. iv) The rate quoted deemed to inclusive of testing charges.

Collecting the oil samples of transformers / voltage stabilizers installed at CHAFB areas after filteration and dehydration and carrying out testing the oil from NABL accredited Laboratory and as per IS 335:1993 detail analysis of physical,chemical & electrical parameters including dissolved gas analysis, Furan Analysis , etc and full report is submitted on printed form for each transformer oil samples tested all as specified and direced

M & L for filling insulating oil (transformer oil) confirming to IS-1866:2000 having dielectric strength not less than 60 KV for topping up in 11/0.433 KV transformer all as directed (Filling shall be done by on line filtration plant only)

S & Fix in Repair/repairs of air breather any type upto 630 KVA transformer complete with filled silica gel complete

S & Fix in repairs silica gel for up to 630 KVA transformer of any make type and capacity complete.

S & Fix in Repair/repairs of oil temprature gauge upto 630 KVA transformer complete

S & Fix in repairs of set of gasket such as top cover, conservator,bucholz relay, breather etc for transformer capacity upto 630 KVA complete

M & L for painting the transformer indoor/outdoor of capacity ranging from up to 630 KVA after preparation of surface and applying two coats of synthetic enamel (matching existing colour) paint on old steel surafcece and marking serial no,MES No,SM No,Date of installation etc all as specified and as directed.

M & L for painting the compact substation including transformer, SF6 breaker and canopy complete of capacity ranging from up to 630 KVA after preparation of surface and applying two coats of synthetic enamel (matching existing colour) paint on old steel surafce marking serial no, MES No,SM No,Date of installation etc all as specified and as directed.

S & Fix in repairs of HT 11 KV bushing porecelain with copper alloy terminals for transformer of capacity upto 630 KVA including dismantling unserviceable complete all as specified and directed

All as per item 11 here-in-before but LT bushings

S & Fix in repairs of burnt Brass Bush connecting rod for transformer up to 630KVA and refixing new connecting rods with oil seal o-ring , nuts, washers etc all as specified and directed by Engineer-in-Charge

M & L for Cross arms, bracings, supports,clamps and back plates fabricated from structural steel sections including nuts, bolts, washers, welding, bending cold or hot, drilling holes for bolts, in any shape or size as indicated or directed and inclusive of one primer coat, one under coat and one finishing coat of paint

M & L for servicing of two pole structure complete including repairs of unserviceable jumpers with PVC 50 Sqmm aluminium cable single core , vice type connectors, bolts nuts washers connecting lugs/thimbles knife contacts, applying petroleum jelly to the moving as well as fixed contacts tightening all the connections for its smooth functioning and preparing the old painted surfaces of the structure such as poles, cross arms, bracing and supports clamps back plates complete painting of two coats of anticorrosive aluminium paint over a coat of redoxide zinc chrome primer and providing yellow and black paint from the ground level all as directed at site by Engineer-in-charge. Note: - No extra payment will be made for the spares required to keep the installation in satisfactory functioning through out the contract period other than given in the schedule.

M & L for spread stone aggregate of size 40 to 90 mm grade all as specified and directed.

Supply and fix in repair/repairs of switches air break gang operated triple pole mechanically operated mounted on insulator and steel frame with operating mechanism worked from ground level for current rating upto 200 Amps 11000 volts complete.

Supply fix in repairs of Male moving contacts blades for Gang opertaed/Air break switch assembly with proper nuts ,bolts and applying non corresive petrolium jelly all as specified and directed

Supply fix in repairs of Female fixed alloy contacts jaws for Gang opertaed/Air break switch assembly with proper nuts ,bolts and applying non corresive petrolium jelly all as specified and directed

Supply fix in repairs PVC sheahed strandarded aluminium conductor cable of size 70 sqmm for jumper due fixed on GOD with D clamps all as specified and directed

Supply fix in repairs pin type porcelain vitreous, white, brown or green insulator including one galvanized mild steel spindle two galvanized iron washers and one galvanized iron nut 150mm height 150mm dia 11000 volts grade including taking down old unserviceable insulator all as specified and directed.

Supply and fix lightening arrestor non linear type suitable for HT 11 KV installation out door use complete with all fittings transmission class discharge 65 Kilo Amps including taking down the unserviceable all as directed.

M & L for cleaning, dusting and servicing, for the smooth functioning electronic float cum boost battery charging unit suitable for HT VCB panel 110/220 volt DC with sealed battery bank of 2 volt , 100 AH with connection fixed inside MCB control for input circuit, DC out put circuit, tightening the cable connection incoming and out going etc all as specified and directed.

Supply & Fix in repairs of Drop out fuses capacity 20 Amps to 40 Amps.

S & Fix in repairs of HT Bottle fuse 100 Amps for load breaker switch controled all as specified and directed at site.

M & L for Repair/Maintenance , cleaning, dusting and servicing Vacuum Circuit Breaker, HT 11 KV,50 Hz , 630 Amp indoor switch gear panel by Grounding of complete panel live parts, thorough cleaning, visual checking, tightness checking, and servicing of breaker panel including breaker carriage along with associated mechanism , metering panel, bushbar/cable chambers, motorised spring charging mechanism , DC shunt trip/close coils, operation counter, manual spring charging mechanism , relays, meters , indicators , heater coil, aux supply SMPS , replacing of worn out parts and fuses , applying petroleum jelly to moving and fixed mechanical parts for its smooth functioning all as specified and directed by the Engineer in charge.

M & L for Repair/Maintenance ,cleaning, dusting and servicing, for the smooth functioning of 3 way compact RMU, HT 11 KV , 630 Amp, 3 phase 50 cycle by Grounding of complete panel live parts, thorough cleaning, visual checking, tightness checking, and servicing of breaker panel including breaker carriage along with associated mechanism , metering panel, bushbar/cable chambers , self powered over current and earth falult relay, T-off SF6 circuit breaker module , mechanical fault/on/off indicator etc including refilling of SF6 gas and replacing worn out parts when required etc and confirming smooth reliable operation of RMU unit all as specified and directed.

M & L for Repair/Maintenance , Cleaning, dusting and servicing Oil circuit Breakers HT 11 KV, 50 Hz, 400 Amps capacity by Grounding of complete panel live parts, thorough cleaning, visual checking, tightness checking, and servicing of breaker panel including breaker carriage along with associated mechanism , metering panel, bushbar/cable chambers, DC shunt trip/close coils, operation counter, manual spring charging mechanism , relays, meters , indicators , aux supply SMPS , replacing of worn out parts and fuses carefully for its smooth functioning complete all as directed by the Engineer in charge.

M & L for Repair/Maintenance ,cleaning, dusting and servicing of standalone/Compact substation SF6 Circuit Breaker, HT 11 KV, up to 630 Amp , 3 phase 50 cycle totally enclosed out door type application switch gear by Grounding of complete panel live parts, thorough cleaning, visual checking, tightness checking, and servicing of breaker panel including breaker carriage along with associated mechanism , metering panel, bushbar/cable chambers, motorised spring charging mechanism , DC shunt trip/close coils, operation counter, manual spring charging mechanism , relays, meters , indicators , heater coil, aux supply SMPS , replacing of worn out parts and fuses , applying petroleum jelly to moving and fixed mechanical parts for its smooth functioning all as specified and directed by the Engineer in charge.

M & L for Repair/Maintenance ,cleaning, dusting and servicing, for the smooth functioning of oil cooled servo voltage stabilizer 75 KVA 3 phase by Grounding of complete panel live parts, thorough cleaning, tightness checking, and servicing of servo moter,Auto transformer ,control circuit ,Aux power transformer,bearing,control relays,contactors including checking of looswiring along with associated mechanism and replacing worn out parts etc and testing,confirming smooth reliable operation of voltage stabilizer unit all as specified and directed.

M & L for Decarburizing/cleaning complete HT 11KV, 3 phase independent bus bar, bus bar chamber of HT panel electrification after removing the complete bus bar spout, circuit spout from the bus bar chamber, cleaning with CTC and ensure proper decarburizing, re-fixing the same after applying backtol (Red) solution to the spout, checking all the connections, tightening the nuts, bolts thimbles for incoming and outgoing system complete all as specified and directed, rate quoted is inclusive of bactol red, CTC & cotton waste provided by contractor.

M & L in repairs of terminal protector boot straight/right angle type having insulating capacity of 11/22KV rating for having Protection from Short Circuit due to Intervention by Reptiles,Birds, Animals in Cable Entry Box for transformer/VCBs/RMU/SF6/OCB breakers all as specified and directed

M & L for refilling/topping SF6 (Sulpher Hexa fuloride) gas charging/topuping in existing RMU/SF6 circuit breaker upto specified operating level (min pressure 2.8 Kg/cm2) and conduct gas leakage test and arrest leakage if any complete all as specified and directed

Supply and repairs of LED indicator light Red, Blue, Yellow & green for 110 Volts for HT 11 KV panel all including taking down the unserviceable as directed

Supply and fix in repairs of Push Button with 1 NO + 1NC on existing HT VCB Panel all as specified and as directed

Supply and fix in repairs of Rotary switch for Local / Remote / Neutral / trip / Close function on existing HT VCB/SF6/OCB Panel all as specified and as directed

Supply and fix in repairs of Digital Multifuction meter with PT/CT (0-110v)/(0-1/5A) operated for measuring votage / Ampere / Power factor / Frequency etc on existing HT VCB/SF6 Panel all as specified and as directed

supply and fix in repairs of resin type PT 11KV/110V for phase with fuse, 11KV/110V, with burdon of 100VA, Accuracy 0.5 as existing type , complete suitable for HT 11KV panel , testing and commissioning after completion of the work.

Supply and repairs of HT 11 KV current transformer dual core epoxy insulation type as existing CT ratio including taking down the unserviceable all as directed

S & F in repairs of SMF GEL Tubular VRLA 2 Volts 100 Ah Battery for battery bank system, including connecting copper lead , thimbles, nuts, bolts , washers etc.

Supply and fix in repairs of Panel space Heaters 80-120 watts coil element AC 230 Volt Input suitable for HT VCB panel of any make fixed inside with suitable clamps , bolts and nuts complete including necessary wiring cable connection complete all as specified and directed

Supply and fix in repairs of Thermostate switch for controlling the space Heaters temperature settings AC 230 Volt Input suitable for HT VCB panel of any make fixed inside with suitable clamps , bolts and nuts complete including necessary wiring cable connection with control toggle ON-OFF switch - 01 No complete all as specified and directed

Supply and fix in repairs of damaged HT breaker cluster contacts male / female / Isolating / Moving / Fixed Contacts 630/400 amps for VCB/OCB/RMU/SF6 type breaker all as specified & directed

Supply and fix in repairs of closing coil complete with all accessories suitable for HT 11 KV VCB 400/630 Amps complete including taking down the unserviceable all as directed.

Supply and fix in repairs of tripping coil complete with all accessories suitable for HT 11 KV VCB 400/630 Amps including taking down the unserviceable complete all as directed. Make: Suitable Make of Kirloskar/ABB

Supply and fix in repairs epoxy spout insulator of HT 11 KV VCB 400/630 Amps including taking down the unserviceable. Make: of Kirloskar/ABB

Supply and fix in repairs of CAM wheel assembly suitable for VCB of existing make HT 11 KV,400/630 Amps capacity complete with all accessories as specified and as directed.Make: Suitable Make of Kirloskar/ABB

Supply and fix in repairs of spring charging motor suitable for VCB of make Schnider HT 11 KV, 630 Amps capacity complete with all assembly/accessories as specified and as directed.Make: Suitable Make of Kirloskar/ABB

Supply and fix in repairs of spring charging gear assembly with all accessories suitable for HT 11 KV VCB 400/630 Amps complete including taking down the unserviceable all as directed. Make: Suitable Make of Kirloskar/ABB

Supply and repairs of catch/ latchet assembly complete with all accessories suitable for HT 11 KV VCB 400/ 630 Amps complete including taking down the unserviceable all as directed. Make: Suitable Make of Kirloskar/ABB

M & L for calibration and testing of triping system of HT 11 KV OCB/VCB/SF6/compact substation circuit breaker by injecting fault current on primary side of CT/PT , setting the OL/inverse time /Earth fault level and ensure that HT breaker tripping system function properly as per relay setting and submit calibration test certificate duly signed by contractor complete all as specified and directed by Engineer-in-Charge.

M & L for painting the VCB of capacity ranging 630/400 Amps after preparation of surface and applying painting of two coats of anti corrosive smoke grey paint over a coat of redoxide zinc chrome primer out side surface of the metalic enclosure including writing MES No, SM No, Date of installation etc all as specified and directed by the Engineer in charge

M & L for painting the SF 6 /OCB / RMU of any capacity ranging after preparation of surface and applying painting of two coats of anti corrosive smoke grey paint over a coat of redoxide zinc chrome primer out side surface of the metalic enclosure including writing MES No, SM No, Date of installation etc all as specified etc all as directed by the Engineer in charge

M & L for Cable jointing kit for 11 KV (Earthed) grade cable for stright through cold shrink type joint complete with jointing material and accessories suitable for 3 core XLPE armoured aluminium conductor cable of size 120 sq mm to 185 sq mm including taking down the unserviceable.

M & L for repairs of cable jointing kit for 11 KV (Earthed) grade cable for outdoor termination cold shrink type joint complete with jointing materials and accessories suitable for 3 core XLPE armoured aluiminium conductor cable of size 120 sqmm to 185 Sq mm

M & L for repairs of cable jointing kit for 11 KV (Earthed) grade cable for indoor termination cold shrink type joint complete with jointing materials and accessories suitable for 3 core MLPE armoured aluiminium conductor cable of size 120 sqmm to 185 Sq mm

M & L for Repair/Reconditiong of exisitng earth pit by removing damaged Earth PCC chambers and excavate pit soil upto 25% of earth plate/electrode and adding alternate layers of charcoal, mixture of salt and copper sulphate up to 15cm above the earth plate/electrode and moist the mixture using water , cleaning/replacing of funnel with wire mesh where ever necessary , contractor should ensure that the earthing resistance should be below 5 Ohms, making good to distrubed surface and all as specified and directed at site. Note: 1. Deemed including excavation, returning filling and connected items. 2. Salt , charcoal , pit cover will be measured and paid seperatly

Supply only pure charcoal granular/aggregate type having Ash content < 5% , stone free for earthing

Supply only iodine free pure common salt crystal ( NaCl) for earthing

M & L for repair/repairs of earth pit cover with pre moulded cast iron earth pit cover 300mm x300mm x 50mm , provision of funnel, wire mesh necessary excavation and earth work in any type of soil as earth pit complete all as specified and directed

M & L for Test point terminal block made of gun metal or phosphorus bronze size 75 x 75 x 25mm, drilled and screwed including 3 Nos. 8mm dia 25mm long hexagonal head screw complete fixed on wall in and including sheet steel enclosure of thickness 2 mm thickness with locking arrangement complete all as specified and directed.

Taking down old U/S strip of any description and any size

M & L for laying earth continuity conductor GI Strip 25 x 4mm fixed to wall on batten or recess or chases or buried in ground or drawn in conduit/pipe or fixed to poles or any other indicated situation for direct/loop earthing with proper PVC/Porcelain insulator etc all as specified and directed .

M & L for laying earth continuity conductor GI Strip 32 x 6 mm fixed to wall on batten or recess or chases or buried in ground or drawn in conduit/pipe or fixed to poles or any other indicated situation for direct/loop earthing with proper PVC/Porcelain insulator etc all as specified and directed .

S & F in repairs of PVC Polymer/Porcelain insulator for existing GI/Aluminium/copper strip support all as specified and directed

M & L for earthing complete with galvanised steel earth plate electrode 60 cm x 60 cm x 6 mm thick burried directly in ground (earth pit not less than 2.25 m deep below ground level) with top edge of the earth plate not less than 1.5 m below normal ground level, connected to G I Strip 25 x 4 mm. dia by means of bolts,nuts and washers of galvanised iron or steel all as shown in elecrtical plate No 3 set of SSR pt I, connected to transformer, DG set, LT panel/DB/earthing test point including PCC chamber , RCC cover 50mm thick with 8 mm dia bars, protection pipe, watering pipe20 mm GI, funnel etc including excavation, earth work, disposal of surplus soil and earth strip protection pipe of GI 15 mm bore light grade upto 7.5 metre including testing on completion all as specified and as directed.

M & L for synthetic Rubber insulated mats 2.5 mm thick for voltage upto 11 kv for electrical purpose as per IS 15652-2006, (superseding IS 5424) suitable for electrical shock safety of sizes 2m x 1m including taking down the unserviceable all as specified and directed.

M&L danger notice board/plate of 1.6mm thick mild steel sheet vitreous enameled white with letter, figures and conventional skull and bones in signal red colour and fixed with MS clamps, nuts and bolts of approved size of HT 25 x 20 cm size.

Supply and repairs of mild steel nuts and bolts and washers of various sizes all as directed.

Repairing/ welding of leaking fins / body of transformer and making the same leak proof all as directed

Supply & fix in repairs of Tinned copper flexible jumper 200/400A rating for Gang operated /Air break switch assembly with proper nuts,bolts and applying non corresive petrolium jelly all as specified and directed

M & L for preventive maintenance/ repairs to transformer step down 11 KV/0.43 KV in door/out door type of any make of 250 KVA - 400 KVA - including cleaning the transformers externally throughly with lint free cloth, tightening the HT/LT terminal nuts, opening the top cover and replacing the worn out copper alloy nuts and tightening the earth terminals and conducting various tests as stipulated in the particular specification

M & L for preventive maintenance/ repairs to transformer step down 11 KV/0.43 KV in door/out door type of any make of 100 KVA - 200 KVA - including cleaning the transformers externally throughly with lint free cloth, tightening the HT/LT terminal nuts, opening the top cover and replacing the worn out copper alloy nuts and tightening the earth terminals and conducting various tests as stipulated in the particular specification

M & L for preventive maintenance/repairs to transformer step down 11 KV/0.43 KV in door/out door type of any make of 500/630 KVA - including cleaning the transformers externally throughly with lint free cloth, tightening the HT/LT terminal nuts, opening the top cover and replacing the worn out copper alloy nuts and tightening the earth terminals and conducting various tests as stipulated in the particular specification

M & L for maintenance/repairs to tap changer of transformer upto 630KVA capacity , tightening of nuts,bolts and all check the functioning of all moving parts , including changing all worn out parts such as moving contacts ,L-connectors,fixed contacts ,mounting blocks etc including testing of tap changer in all positions complete all as specified and directed

S & Fix in repairs of vaccum bottle interrupter rated 11KV , and breaking capacity 31.5 KA , rated current 630A min ,including testing all as specified and directed

M & L for detecting faults in HT Installation or trip of breakers HT Panel or defects in 2 pole/4 pole/ 6 pole structure checking the cable ends, Terminals, connections etc in CHAFB, No.2 Offrs Mess area and rectifiying the defects for restoring supply including replacing of defective items immediately from above 1 to 77 items. Note :- (i) Rate for item required to be replaced shall be measured and paid under respective item of schedule . (ii) Essential material like, insulation tape,screws and all tools required for carrying out the works shall deemed to be included in the quoted rate (iii) All emergency nature complaints must be attended and completed within 2 hrs as and when assigned (iv) All other complaints to be attended and completed within 6 hrs as and when assigned (v) Not rectification of complaints in said time shall be penalized ar Rs 500- per hour per complaint and recovery shall be made in the payment due to the contractor.

S&F Transformer specification board made out of flexible acrylic sheet of Size 2 x 3 feet background of blue colour with white letters of size 50/40mm alongwith all fixing arrangements for different type and model of Transformers as per sample and as directed by the Engr-in-Charge including removing old existing damaged board and accessories all as directed

Supply & Laying in repairs of HT 11 KV 3 core XLPE insulated, screened, PVC bedded, galvanized steel strip or wire armoured, electric power cables ( heavy duty) with aluminium conductor, 11000 volts complete all as specified and directed at site for the following cross sectional area 95 Sqmm x 3 Core

Supply & Laying in repairs of HT 11 KV 3 core XLPE insulated, screened, PVC bedded, galvanized steel strip or wire armoured, electric power cables ( heavy duty) with aluminium conductor, 11000 volts complete all as specified and directed at site for the following cross sectional area 120 Sqmm x 3 Core

Supply & Laying in repairs of HT 11 KV 3 core XLPE insulated, screened, PVC bedded, galvanized steel strip or wire armoured, electric power cables ( heavy duty) with aluminium conductor, 11000 volts complete all as specified and directed at site for the following cross sectional area 185 Sqmm x 3 Core

Supply & Laying in repairs of HT 11 KV 3 core XLPE insulated, screened, PVC bedded, galvanized steel strip or wire armoured, electric power cables ( heavy duty) with aluminium conductor, 11000 volts complete all as specified and directed at site for the following cross sectional area 240 Sqmm x 3 Core

Excavation in trenches not exc. 1.5m wide and not exc 1.5m in depth and getting out in soft /Loose soil for laying of cable and as directed.

Returning filling in, including spreading, levelling, watering and well ramming in layer not exc 25cm .

Removal of surplus soil (excavated soil) to a distance not exceeding 50m and depositing where directed at a level not exc 1.5m above the starting point .

M & L River sand, spread dry in trenches as in cable cushioning .

Supplying and laying un-reinforced precast concrete cable cover, class HV, type 1 with peak, size 300mm x 180mm x 40mm laid in trenches as in protection of UG cables .

M & L for cable jointing kit for 11 KV (Earthed) grade cable for outdoor straight through cold shrink type joint complete with jointing materials and accessories suitable for 3 core XLPE armoured aluiminium conductor cable of size 95 sqmm

M & L for cable jointing kit for 11 KV (Earthed) grade cable for indoor termination cold shrink type joint complete with jointing materials and accessories suitable for 3 core XLPE armoured aluiminium conductor cable of size 95 Sqmm

M & L for cable jointing kit for 11 KV (Earthed) grade cable for indoor termination cold shrink type joint complete with jointing materials and accessories suitable for 3 core XLPE armoured aluiminium conductor cable of size 240 Sqmm

M & L for cable jointing kit for 11 KV (Earthed) grade cable straight through cold shrink type joint complete with jointing materials and accessories suitable for 3 core XLPE armoured aluiminium conductor cable of size 240 Sqmm

M & L for Boring of holes under road, pavement, hard standing by trenchless technology using ultra sounding technique and necessary machine including HDPE pipe of 150 mm dia suitable for 0.4 mpa working pressure.

M & L for painting of outdoor transformer/VCB/compact substation plinth after making good surface with two coats of weather proof paint all as specified and directed by the Engineer in charge

Supply and fix in replacement of existing worn out exhaust system, installation, testing & commissioning of retrofit Emission control device on existing 40 KVA DG set to reduce particulate matter, Hydrocarbon and Carbon Monoxide emission by at least 70% in 5 mode D2 cycle. The emission control device/ Equipment must be tested over an ISO-8178 5 mode D2 cycle for equivalent kVA rating and consisting of pressure safety valve of SS304 , oxidation chamber particulate matter trap of IS 2062 grade B with high temterature resistant paint, vibration damper & gasket, shielding & guarding of insulation with SS202 cladding, making structure, maintenance platform & ladder of IS 2062 grade B with high temperature resistant paint, Manual exhaust bypass system present - A manual valve will be given after the first stage (Oxidation stage) and before the second stage (Passive Regenerative Trap) of the DOFF, Noise attenuation is within the permissible limits, Equipped with mechanical pressure relief system, Capturing chamber made of resistance process treated Mild Steel etc as reqd. (Make: M/s Chakr Innovation pvt ltd/ SRG Techno / Vihi Innovation Makes)

Pacific Enterprises

NAVREET CONSTRUCTION