annexure 1 - technical specifications vslpksk.co.in/vslp/docs/nit/reqdocs051219/annexure1.pdf ·...

ANNEXURE 1 - TECHNICAL SPECIFICATIONS

Round the clock Field Operation and Complete Maintenance (Mechanical, Electrical and C&I)

for 1 X 135MW VSLP Gurha, Bikaner Rajasthan

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GENERAL SCOPE

1. Follow all O&M SOPs, SMP implementation, PM check list compliance, Maintain the log books and Check sheets (equipment

change over schedule, trail run schedule etc.) for running equipment of power plant, keeping VSLP authorities informed if

they find any abnormality.

2. Operating the equipment as per SOP’s to ensure safe and efficient operation of the plant which includes starting, normal

running and shutdown.

3. Isolation of systems (Only Process but not electrical) for maintenance to carryout regular maintenance activities with proper

work permits and normalization of the system after maintenance activities.

4. Constant monitoring of the running plant / equipment and identification of defects if any and bringing to the notice of shift

in charge for raising the defect / rectification of the defect.

5. Handing over of shift to the reliever with all the information of his shift orally as well as proper filling of log book with all the

activities.

6. Carrying out shut down (Operation related) activities within stipulated time schedule given by Owner.

7. Minor modifications to be carried out to improve system performance for reliable operation of Units, material will be

provided by the Owner.

8. Assisting to owner in Coordinating with service department teams to rectify all the problems and confirming its proper

operation.

9. Normalization of one after the other system after obtaining maintenance clearance.

10. Maintains the tools required for shift operation and hold responsible for the same.

11. Properly handles the tools and ensures its availability at right place at all the times.

12. Performs the work in safe way ensuring personal safety as well as equipment safety.

13. Taking up the additional job assigned by shift In-charge as and when required.

14. To improve the operator knowledge and performance field training classes with in house team must be provided for

supporting the safe and reliable operation.

15. Submission of daily and monthly reports to EIC and Plant Head.

16. Assisting in Developing and implementing SMPs and PM check list compliance. Assisting in Spares planning monthly and

yearly and Inventory control and preparing of yearly budget in time frame. (The budget preparation should start in month

of October every calendar year for next financial year and it should be completed by February next year for presentation).

17. Daily Manpower report to be sent by contractor site in-charge/ HR to VSLP EIC/ EIC representative, the submission of

monthly invoice must be submitted on or before 3rd

day of every month to EIC. EIC will clear the bill by every 6th

day of

month and send to plant head for final approval for payment process with assurance that the duplicacy of manpower is not

there.

18. Assisting in developing Annual Maintenance and Spares Plan for all equipment under the Scope of Work.

19. Maintenance housekeeping, regular cleaning of equipment. Proper attention is to be given towards running equipment

during cleaning so that it does not cause any accident to person working or adverse effect on the equipment. If necessary,

cleaning of running equipment is to be carried out in presence of Owner representatives.

20. CBM observations and necessary corrections need to be carried out as per requirement. Equipment should be operated at

normal vibration levels as per ISO norms. Any deviation in vibration levels should be addressed immediately and corrections

to be done on priority. Latest CBM monitoring instrument is required with experienced engineer for healthiness checking of

all equipment’s as per schedule or as and when required.

21. Round the clock field operation.

22. Continuous monitoring and logging of all running parameters of all equipment’s.

23. Handling of emergency situations.

24. Assisting to owner in Compliance of all applicable IMS clauses in respect of documentations, record keeping, SOPs and

safety norms and standards.

25. Provide information and reasonable technical assistance with respect to Operation of the power plant as necessary to aid

the owner in obtaining and maintaining required permits.

26. Time to time collect data for, among other things analyzing system performance, performing preventive maintenance and

verifying performance criteria. These data shall be made available to the customer at least once in every quarter for his

study and analysis of the performance of the power plant.

27. Immediately inform the OWNER of any major deviation in the performance from predicted performance of the Power Plant

during normal operation.

28. Immediately inform the OWNER of any abnormal operation failure / breakdown of any component of Power Plant during

operation, giving the sequence of event before and after component failure / breakdown.




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29. Assisting to owner in Performing and record periodic operational checks and tests of the Power Plant as required by the

Operational and Maintenance Manual of the Manufacturer.

30. Maintain appropriate operation log sheets, records, and reports relevant to operation of the power plant.

31. To adopt all HSE & Environmental norms of the owner.

32. To adopt work procedure, permit system of Owner.

33. De-watering pumps has to be installed by contractor wherever required. Pumps will be provided by Owner.

34. Maintain Good House keepings in work place, equipment’s.

35. Maintain cleanness of BTG & BOP Area.

36. Maintain cleanness in all Control Rooms and Panel Rooms.

37. Ensure effective rodents in all required places.

38. Maintain minimum stock of consumables at site as per contract.

39. Maintain all required standard T&P’s at site as per contract ( Except special Tools )

A. SCOPE OF WORK - TG & AUXILIARIES:

1. SCOPE – ROUND THE CLOCK MAINTENANCE:

1.1 The Maintenance work will cover periodic, preventive, and routine and breakdown corrective mechanical

maintenance of the system, sub-systems and equipment as per list mentioned hereafter.

1.2 The maintenance work will include trouble shooting, servicing/ replacement, internal checking and rectification of

defects of the mechanical, Electrical and C&I equipment as per instructions of Owner’s EIC and as per scope.

1.3 During any short or long shutdown the defect rectification and preventive maintenance responsibility is covered in

the scope this Contract.

1.4 Any activities associated with the scope not mentioned but requires for successful completion of the job is within the

preview of this Contract.

1.5 Maintain cleanness in TG Building and its auxiliary areas.

1.6 Indicative but not exhaustive job list applicable to all equipment shall be as under:

1. Careful removal & refitting of insulation & cladding of the equipment, piping, fittings. This is included for

regular maintenance activity.

2. Adjusting of Oil guard main turbine / generator/ BFP to arrest oil leakage.

3. Replacement of LP turbine exhaust rupture diaphragm.

4. Dismantling, inspection and servicing of Turning gear assembly, replacement of gears & bearings etc.

5. Inspection, cleaning/replacement of all Oil line filters.

6. Attending leakages of EH oil system / HP/LP BY pass system and cleaning/replacement of oil filters, Breather,

EH oil /HP/LP bypass regeneration related jobs.

7. Calibration & Setting of Servomotors, Regulating valves of Lube oil/ Control Oil systems.

8. Cleaning/ replacement, gas filling work Bags of Accumulators.

9. Transferring oil from MOT to Emergency (DOT and COT) tank and after Filtration with required NAS/moisture

back to MOT. Internal cleaning of Emergency (COT and DOT) transfer tank &MOT and also cleaning of DEH oil

tank.

10. Servicing and maintenance work of DEH main pumps and DEH recirculation pumps.

11. Dismantling, tubes cleaning, tube leakage attending, refitting of Generator coolers. Hydro test also carried out

as per OEM.

12. Servicing/ routine maintenance of all Oil pumps (JOP, AOP, EOP, MOP, DEH main pump, DEH recirculation

pump, BFP AOP, etc.), Vapor Exhaust Fans, Air Blowers/root blower (excluding building ventilators).

13. Servicing, Replacement of disc, spindle, and lapping/ seat replacement of all type of Valves, Pneumatic/ Oil

operated Servomotors, Scoops, Safety valves, NR valves, Butterfly valves, Pilot valves, Air valves and Test

valves. Valve seats lapping and blue matching to achieve leak free tightness. Greasing of all type of valves.

14. Assistance in servicing/lapping and setting of safety valves and relief valves.

15. Servicing, Setting and tuning of various valve operating livers/linkages.

16. Removal & Refitting/ Replacement of Electrical/ Pneumatic Actuators. Repairing of mechanical & C&I parts of

Electric/ Pneumatic Actuators.

17. Replacements of HP/LP valves, flanges, fasteners, orifices, pipe fittings, traps, filter elements etc. Cutting,

grinding, welding and NDT work required for the same.

18. Cleaning/replacement of all Filters, breathers and Strainers of Steam/ Air/ Water/ Oil circuits.




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19. Dismantling and cleaning of shell/ tubes jet cleaning/ elements of various coolers/heat exchangers/ filters/ DLS

filters/ strainers (including MOT lube oil Plate Heat Exchanger, BFP coolers, Vacuum pump PHE, CEP Bearing

Cooling coil, DEH coolers, Compressor coolers), Blocking of leaky tubes, Arresting of Shell side leakages,

Assembly and Conducting hydro test as per requirement.

20. Conducting tube offline/ online leak detection checking for Condenser and Blocking of leaky tubes.

21. Conducting Vacuum tightness Test and Flood test of the turbine and attending leakages.

22. Checking and attending Condenser/ HP Heater/ LP Heater/ GSC tube leakages and its flange leakages.

23. Inspection, internal cleaning of Deaerator (Including nozzles), Storage tanks.

24. Cleaning of all water/ oil storage tanks.

25. Manhole gasket replacement, Gauge glass leakages attending, float mechanism servicing for Condenser, Flash

tanks, LP Heaters, HP Heaters and Storage tanks.

26. Condenser automatic tube cleaning system equipment maintenance. Filling of sponge balls, Servicing of ball

circulation pump, Renewal of the pump coupling, Servicing of ball separator screen, Servicing of the

suction/discharge valve of the ball vessel.

27. Arresting steam/ Water/ Oil/ Air/ Chemical leakages from piping/ valve/ flanges/ inspection door/ bonnet/

stuffing box/ union/ coupling/ tees/ by gasket replacement/ by O ring replacement/ by caulking the asbestos

thread/ applying putty/ gland packing replacement/ tightening of fasteners/ tightening of gland follower/

welding etc. Attending leakages of Drain and Impulse lines. Replacement and modification of Drain and

Impulse line valves and piping.

28. Complete overhauling of all water/oil pumps (Inspection of Pump bearing, replacement of bearing, servicing/

replacement of mechanical seal, inspection & servicing of hydraulic coupling. Pump Motor coupling inspection,

coupling replacement, Element/ Bushing/sleeve replacement, Lubrication etc. Shifting/ placement & alignment

of drive motor).

29. Cross checking of pump motor alignment, assisting in pump motor alignment, motor side coupling half

replacement, Bearing replacement even for electrical maintenance work as decided by the Owner’s EIC.

30. Servicing of all Oil filtration machines (OPU system, LVDH, Klarol filtration machine, Paper filtration machines,

Pall filtration machines etc.) servicing of oil pump, cleaning/ replacement of sight glass, replacement of gears/

bearings/ gearbox oil, Vacuum pump oil, belts replacement, oil seal replacement, Shafts

repairing/replacement, float issues rectification, filters cleaning/replacement and coolant replacement for

LVDH).

31. Maintenance of mechanical components of Fire Detection, Prevention and Protection systems of TG House and

area under scope. Repairing of Fire Hose cabinets including glass fitting. Preservation and up keeping of hoses

when used.

32. Servicing/ Replacement of Firefighting line components (valves, thermal bulbs, sprinklers, water monitors etc.)

within TG house & Oil tank area. Attending Fire Water line leakages.

33. Chemical dose preparing/ metering tank cleaning. Agitator coupling/ element replacement. Dosing pump

internals replacement/ gland packing – seal - bush replacement/ lubrication/ complete overhauling. Attending

leakages from pumps/ piping/ valves/ tanks. Attending NRVs and Strainers. Complete routine maintenance/

overhauling problem solving of all chemical dosing system in TG area.

34. Lubrication of gears & wire rope of EOT crane in TG brake liners replacement and setting of brakes,

replacement of wire rope, replacement of wheel, servicing of hooks, checking & tightening of rails, servicing of

gearboxes, Load testing.

35. Periodic cleaning/ acid cleaning of cooling water jackets, coolers & piping associated to equipment.

36. Draining of oil/ removal of old grease required for maintenance and re-filling the same/ new on completion of

maintenance activity. Replacement of complete lubricant after thorough cleaning of reservoir of the

equipment whenever required.

37. Separate storing and Centrifuging /filtration of used oil for future use.

38. Replacement of belts, belt tension adjustment, alignment of pulleys.

39. Reconditioning and reclaiming of worn out components using in-house facilities. Common Workshop will be

made available to the Contractor free of cost.

40. Fabrication of patches for leakage arresting from metal sheets, fabrication of shims for alignment, preparation

of asbestos/ rubber/ metal gaskets from sheet, fabrication of small items for maintenance aid.

41. High/Low Pressure welding and NDT of steam/ water and oil piping.

42. Repair of high pressure and low pressure piping is included. Land Excavation and refilling for maintenance work

execution wherever possible manually as decided by Owner’s EIC.




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43. Heating/ Cutting of fastener/ bearing/ coupling whenever required during the maintenance.

44. Process related jobs such as removal of jamming/chock up in equipment, pipes etc. Hand barring of TG rotor

during outage of turning gear.

45. Servicing and lubrication of chain blocks/ trolleys of TG house.

46. Obtaining statutory testing and certification of all EOT crane, Lifting tools & tackles, Pressure vessels of Owner.

Testing & certification of Contractor’s own tools & tackles shall be in Contractor’s scope. Owner shall pay the

required statutory fees/challan only.

47. Dewatering required in work area and maintenance of dewatering pumps.

48. Erecting Safe scaffolding to work whenever and wherever required and immediate removal of the same on

completion of maintenance work (including online sealing).

49. Oil top-up in MOT, DEH, Oil replacement in BFP H/C, CEP, LP Drip pumps, Vacuum pumps & other all pump

bearings and Grease refilling of ACW pump bearings and all Gearboxes.

50. Segregating and removing the scraps from each site after completion of work to ensure housekeeping. Shifting

of waste oil drums and scrap material to scrapyard.

51. Un-packing/packing, unloading/ loading of equipment/ component on return/ sending for outside repairing/

development purpose.

52. Assisting in implementing Condition Monitoring recommendations to resolve vibrations/ abnormal noise/ high

temperature related effects.

53. Assistance for Dynamic Balancing of rotary equipment.

54. Assisting in inspection of new material received at stores and dimension measurement of spares for drawing

development.

55. Any miscellaneous work not mentioned in scope but is essential for maintaining operability of any equipment

in the scope, shall be deemed to be in the scope of Contractor.

56. Servicing/maintenance of Condenser pit, DOT/COT tank dewatering pumps.

57. Main steam stop valve, ON/OFF Pneumatic, Motorized valve, control valve IP valve strainer inspection/

replacement in agency scope.

58. Main steam governing valves, Main steam stop valves, IP stop and control valves inspection and servicing like

actuator seals oil leakage issue arresting, damaged parts replacement (spindles, locknuts, LVDT plates, cam

follower bearings, locking washers etc).

59. Overhauling of ball cleaning system.

60. Lube oil and FRF oil filtration in Contractor’s scope as per OEM recommendation. Oil filtration machine shall be

provided by owner.

61. Steam, water, oil and air leakage online arresting jobs by contractor scope.

62. Assisting in Special technique/ special machinery involving activities like, Condenser tubes bullet cleaning/

HPWJ, Coupling bolt hole reaming.

63. Assisting in Helium Leak detection for equipment tightness test and for detection of turbine vacuum drop.

64.

65. Spill over oil / water / grease / cotton waste / etc. in surrounding area to be cleaned as per the instructions of

EIC.

66. Assisting for inspection / repair / servicing during expert visit as per instructions.

67. Contractor has to maintain the records of PM and overhauling activities with dates. Reports needs to be

circulated every month.

68. PM checklist to be recorded and handed over to EIC.

1.7 OTHER PUMPS/FANS

1. Inspection and overhauling of vacuum pumps, Seal proof pumps.

2. Inspection and overhauling of auxiliary cooling water pumps (ACW).

3. Inspection and overhauling of LP drip pumps.

4. Inspection /overhauling of GSC fans and Oil vapor extraction fans.

5. Inspection and overhaul of EH oil main /recirculation pumps.

6. Inspection and overhaul of jack oil pumps, AOP, EOP.CEP, Vacuum Pumps,

1.8 MAINTENANCE OF AIR COMPRESSORS

1. Carry out external cleaning of equipment.

2. Complete Overhauling of screw compressor.




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3. Check the oil level in the tank if low top-up with oil.

4. Change the lube oil & lube oil filter element.

5. Check the tightness of foundation bolt & take corrective action if required.

6. Check the coupling spider installed between compressor and motor if found damaged then replace and

realignment to be done.

7. Clean the inlet air filter element and replacement on need basis.

8. Checking / cleaning of all heat coolers (including hydro testing).

9. Checks the leakage in oil line, water line and airline if found then rectify the same.

10. Cleaning/ Back flushing of air and oil cooler, air purging oil scavenging & connecting tube, Cleaning &

replacement of all pre suction and suction filter elements during every PM. PM checklist and SMP to be

followed strictly.


12. Contractor has to maintain the records of PM and overhauling activities with dates. Reports needs to be

circulated every month.

13. CBM observations and necessary corrections need to be carried out as per requirement. Equipment should be

operated at normal vibration levels as per ISO norms. Any deviation in vibration levels should be addressed

immediately and corrections to be done on priority.

14. Take trial run for smooth operation.

15. Alignment corrections and mounting pads replacement to be carried out as per requirement.

16. Motor decoupling and coupling to be carried out as per requirement.

17. Assistance to be given to C&I and electrical department as per requirement and instruction of EIC.


EIC.

19. Checking Proper Loading/Un-loading of compressor and healthiness of Controller.

20. Good Housekeeping inside Compressor building.

1.9 MAINTENANCE OF DRYERS


2. Clean the suction and discharge filters.

3. Check the tightness of foundation bolts & take corrective action if required.


5. Filling of alumina balls as per requirement.

6. Check and maintenance of change over valve & replace if required.

7. Check and resolve for any leakages in pipeline.


9. Equipment painting to be done during every overhauling.


EIC.

11. Check the operation of auto drain valves and controller and resolve the problem by C&I

12. Check and maintain operation of heaters and replace if required by EMD.

1.10 MAINTENANCE OF COMPRESSED AIR STORAGE TANKS

1. Cleaning of air receiver tank.

2. Servicing of safety valve.

3. Pressure testing of air receiver tank. Statutory fee will be reimbursed by owner.

4. Check healthiness of air receiver pressure gauges and Auto drain valves, pressure transmitters by C&I

1.11 MAINTENANCE OF DG SET

1. Preventive & predictive maintenance on periodic basis.

2. Tank cleaning and Replacement of all filters.

3. Equipment & Housekeeping after maintenance.

1.12 MAINTENANCE OF SHUTTER

1. All area shutters maintenance work.

2. Gearbox servicing work.




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3. Periodic & manual operative work of Shutters.

4. Preventive maintenance of all shutters.

B. SCOPE OF WORK - BOILER & AUXILIARIES:

1. SCOPE - ROUND THE CLOCK MAINTENANCE:

1.1 The maintenance work shall cover periodic, preventive, routine and breakdown mechanical maintenance of the

system and sub-systems as per equipment list.

1.2 The maintenance work will include trouble shooting, servicing/ replacement, internal checking and rectification of

defects of the mechanical equipment as per instructions of Owner’s EIC and as per scope.

1.3 During any short or long shutdown the defect rectification and preventive maintenance responsibility is covered in

the scope this Contract.

1.4 Any activities associated with the scope not mentioned but requires for successful completion of the job is within the


1.5 Indicative but not exhaustive common job list applicable to all equipment shall be as under:

1. Careful removal & refitting of insulation & cladding of the equipment, piping, fittings. This is included for

regular maintenance activity. Repair/ replacement of damaged insulations, wherever required. Removal &

application of insulation for large area is excluded.

2. Opening and closing of Boiler/ APH/ Coal mill/ Duct manholes/ inspection windows whenever required.

Opening of manholes should be strictly attempted only after obtaining work permit. Closing of manholes to be

made only after double ensuring total evacuation of manpower from respective area.

3. Routine checking, repairing and setting of all hangers, support, anchors and restraint of boiler, coal piping,

ducts, valves, steam and feed water piping and its headers. Simultaneous repairing of more than five hangers

at height (i.e. requiring scaffolding) is excluded from the scope of work.

4. Replacements of HP/LP valves, flanges, fasteners, orifices, pipe fittings, traps, filter elements etc. Cutting &

welding work required for the same.

5. Cleaning of all Filters and Strainers of Steam/ Air/ Water/ Oil circuits.

6. Dismantling and cleaning of shell/ tubes/ elements of various coolers/ heat exchangers/ filters/ auto cleaner/

strainers, conducting hydro test as per requirement, blocking of leaky tubes.

7. Cleaning of all water/ oil storage tanks.

8. Identification of leakages during running condition plant & put tags on it. Making scaffolding and approaches

for attending various leakages. Removal of insulation/ cladding, shifting of welding machine to the site.

9. Arresting steam/ Water/ Oil/ Gas/ Air/ Chemical leakages from piping/ valve/ flanges/ inspection door/

bonnet/ stuffing box/ union/ coupling/ tees/ by gasket replacement/ by O ring replacement/ by caulking the

asbestos thread/ applying putty/ gland packing replacement/ tightening of fasteners/ tightening of gland

follower/ welding etc. Attending leakages of Drain and Impulse lines. Replacement of Drain and Impulse line

valves and piping.

10. Decoupling & coupling of feeder/ fan/ pump/ compressor etc. & re-alignment with respect to the motor. Cross

checking of pump motor alignment, assisting in pump motor alignment and motor side coupling half

replacement even for electrical maintenance work as decided by the Owner’s EIC.

11. Servicing/ Replacement of Firefighting line components (valves, thermal bulbs, sprinklers, water monitors etc.)

within BTG & ESP area. Attending Fire Water line leakages. Maintenance of Foam system. Repairing of Fire

Hose cabinets including glass fitting. Preservation and up keeping of hoses when used. However, if excavator is

required, same shall be provided by owner.

12. Lubrication of gears & wire rope of EOT crane/ Hoists, brake liners replacement and setting of brakes,

replacement of wire rope, replacement of wheel, servicing of hooks, checking & tightening of rails, servicing of

gearboxes, Load testing.

13. Assisting in Statutory testing and certification of all cranes, Hoists, Lifting tools & tackles, Pressure vessels of

Owner in accordance with Factories Act and rules of Rajasthan state. This includes Air receiver tanks, IBD, LDO

main storage tanks. This also includes explosives license renewal of fuel tanks in accordance with Petroleum

Act and Explosives Act.

14. Periodic cleaning/ acid cleaning of cooling water jackets & piping associated to equipment.

15. Monitoring the level of lubricant in the equipment. Replacement of lubricants of proper grade & quantity, as

per instruction of owner’s EIC.

16. Oil replacement/ Grease filling in pump bearings/ gearboxes. Draining of oil/ removal of old grease required for




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maintenance and re-filling the same/ new on completion of maintenance activity. Replacement of complete

lubricant after thorough cleaning of reservoir of the equipment whenever required.

17. Separate storing and Centrifuging of used oil for future use. Oil Filtration machine shall be provided by owner.

18. Replacement of belts, belt tension adjustment, alignment of pulleys. Replacement & repairing of

belt/Pulley/Bearing/Geared motor/Coupling/Roller etc.

19. Inspection of chemical dozing line till boiler drum, removing choke up, attending leakages.

20. Reconditioning and reclaiming of worn out components using in-house facilities. Common Workshop will be

made available to the Contractor free of cost.

21. Fabrication of patches for leakage arresting from metal sheets, fabrication of shims for alignment, preparation

of asbestos/ rubber/ metal gaskets from sheet, fabrication of small items for maintenance aid.

22. Replacement of HP piping ( of less than or equal to 4” diameter) and LP piping (of less than or equal to 12”

diameter) is included up to 6 meter length for any single instance; more than 6 meter length replacement work

for any single instance is excluded. Land Excavation and refilling for maintenance work execution wherever

possible manually as decided by Owner’s EIC.

23. Repairing of Building Doors/ Shutters, Window grills, locking arrangement, window glass panes, safety railing &

toe guards etc. Modifications for proper locking of Equipment enclosures, Electrical/ Instrument panel doors,

Breakers, Modules. Repairing of Fire Hose cabinets including glass fitting. Preservation and up keeping of hoses

when used. The work shall be done by existing manpower and material shall be provided by owner.

24. Heating/ Cutting of fastener/ bearing/ coupling whenever required during the maintenance.

25. Process related jobs such as removal of jamming/ chock up in equipment, pipes etc.

26. Opening & closing of vessel/ tank manholes, inspection of internal lining & internals, repairing & replacement

of internal header/ distributor/ nozzles, removal of obstructions.

27. Servicing and lubrication of monorails/ chain blocks/ trolleys. Replacement of damaged parts, as & when

required.


29. Erecting Safe scaffolding to work whenever and wherever required and immediate removal of the same on

completion of maintenance work.

30. Segregating and removing the scraps from each site after completion of work to ensure housekeeping. Shifting

of waste oil drums and scraps material to scrap yard.

31. Repairing of hand railing, floor grills, stairs, and ladders of Boiler & ESP & Coal Mills & Fuel oil handling area

buildings. Strengthening of existing working platform, star case, as & when required.

32. Un packing, unloading/ Loading of equipment/ component on return/ sending for outside repairing/


33. Assistance in implementing Condition Monitoring recommendations to resolve vibrations/ abnormal noise/

high temperature related defects.

34. Assistance for in situ dynamic balancing of rotary equipment.

35. Touch up painting, Nomenclature, and Instructions painting (along with paint), Corrosion resistant painting

inside equipment. (Corrosion resistant paint is in VSLP scope)

36. Repairing & replacement (if required) of metallic & nonmetallic expansion joints of all sizes.

37. Dispose of scrap/ waste from all working areas on regular basis after segregation and each area to be kept neat

& clean.

38. Inspection of all sample coolers, sampling lines, root valves etc. of steam & feed water system on regular basis.

Attending troubles in steam & feed water sampling station. Maintenance of complete SWAS room (Hot room)

equipment.

39. Arresting water/ steam leakages from ports of Bi-Color gauge glass of steam drum. Repairing/ replacement of

Bi-Color water gauge glass port assembly.

40. Inspection of water flow system in furnace seal trough. Cleaning/ flushing of overflow lines, valves & nozzles of

seal trough system. Repairing of seal plate and seal trough. Periodic cleaning of seal trough.

41. Inspection and maintenance of Air receiver tanks, IBD tank, IBD pump and its auxiliaries,

42. Attending all root valves of control system for C&I requirement, if required to be isolated & replaced/ repaired.

43. Making provision of manual locking arrangement in damper, gate etc. wherever required, as per instruction of

Owner’s EIC.

44. Assisting in inspection of new material received at stores and dimension measurement of spares for drawing

development.

45. NDT works during boiler tube leakage is in scope of contractor. Stress relieving to be carried wherever




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required.

46. Boiler tubes cleaning by fire water whenever required.

47. Breaking and removal of clinkers from boiler furnace area (limiting to clinkers which can be removed by fire

water jetting). Assisting AHP maintenance for the same.

48. Scaffolding preparation on S-panel and erection of sky climber except during the Annual Overhauling.

49. Complete mechanical maintenance and preservation of sky climber units.

50. Maintenance of Boiler tube leakage detection system and APH.

51. Gagging of main boiler safety valves and Blinding of hydrotest device, if required for boiler hydro test

(Reheater circuit) and removal of same after hydro test.

52. Maintenance of all equipment of Boiler Oil Stations.

53. Ash removal from boiler penthouse, buck stays, ducts, APH guide bearing area during normal operations. Bulk/

major quantity Ash cleaning from Ducts, Hoppers and Penthouse shall be in the scope of Boiler Annual

overhaul.

54. Any miscellaneous work not mentioned in scope but is essential for maintaining operability of any equipment

in the scope, shall be deemed to be in the scope of Contractor.

55. Oil filtration of all oil tanks of equipment. Oil filtration machines shall be provided by owner.

56. Inspection and rectification of hangers and supports as per guidance of Owner EIC.

57. Servicing of all electric hoist with safe work load testing as per guidance of Owner EIC. Statutory fees paid to

government shall be reimbursed by owner upon submission of documents.

58. During Boiler Tube Leakage or any other opportunity shut downs, Contractor shall perform the jobs, which are

usually part of overhaul activities, as per Owner’s EIC instructions. No extra cost shall be paid by the Owner for

these jobs however the jobs shall be performed by the Contractor with existing resources and without

affecting the work for other operational units.

59. The indicative but not exhaustive work for some of the equipment covered under this scope is as follows. The

responsibility of the bidder is not restricted to routine, preventive & breakdown maintenance of major

equipment. Indicative work has been mentioned to facilitate the bidder to understand and analyze the nature

of work and Contractor will cover the entire work requirement whether the same has been explicitly defined or

not.

60. In case owner requires additional working hours for specific jobs, the same shall be certified by Owner’s EIC

and shall be adjusted against absenteeism in a period of 3 months. After considering absenteeism in 3 months

leftover man days if any, shall be paid on the basis of agreed man month rate.

61. If additional manpower is required by EIC/Plant Head, same shall be arranged by contractor within notice of 2

days. The payment for the additional manpower shall be as per man-month rates provided in Annexure 3.

62. Erection of Platform / approach installation as per plant requirement shall be done by the contractor with the

existing manpower.

1.6 FUEL OIL SYSTEM:

1. Regular checking of LDO pipe line valves for oil leakage & malfunctioning.

2. Attending oil leakages from flanges, valves, piping, hose, pump’s mechanical seal/ gland etc.

3. Attending steam leakages in atomizing system from flanges, glands, valves, piping, hose, steam traps etc.

4. Replacement of flange gasket, gland packing, fasteners with new as & when required.

5. Maintenance of all oil loading, unloading, circulation pumps and oil water separator.

6. Attending problem of high vibration, abnormal sound & high temperature of pump.

7. Aligning pump with respect to the motor and replacing coupling spider, fasteners.

8. Adjusting the operating pressure of fuel oil pumps, if required.

9. Inspection for oil leakage from tank & level indicator, if found rectify the defects.

10. Cleaning/ Replacement of fuel oil filters/ strainers.

11. Removing non-performing pump from foundation/ base plate & shift to working area. Removing motor from

foundation and shift it, if required to carry out maintenance of pump. Dismantling the pump completely.

Inspecting all parts of the pump and replacing bearings, shaft, mechanical seals, oil seals, couplings and other

parts as per requirement. Assembling the pump, shift & fix to the foundation & connect inlet/outlet piping.

Installing the motor if it was removed from the foundation. Align pump with respect to the motor. Trial run of

pump, rectify defects if any.

12. Maintenance of complete steam tracing line.

13. Assist in Unloading of fuel oil from truck tanker.




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14. Repairing of Control valves, Motorized valves, Pressure Gauges & Flow Meters.

1.7 OIL GUNS:

1. Fabrication of oil gun cleaning stand/ fixture at firing floor of boilers separately.

2. Metallic containers/ oil trays to be fabricated for collecting waste oil.

3. Connecting supply of aux. steam to oil gun cleaning fixture.

4. Arresting atomizing station oil, air and steam leakages from lines & valves etc.

5. Arresting oil and steam leakages at oil guns, if any.

6. Replacement of damage LDO oil gun’s flexible hoses.

7. Removal of oil guns from position. Cleaning of oil guns with steam. Purging of oil guns nozzle tip by steam. Re-

fixing of oil gun in position. Cleaning of guide pipes to ensure free movement of gun inside it. Teflon tape shall

be used on threads for fitting flexible hoses, every time.

8. Fabrication of spare guns as per site requirement. Spare oil guns to be kept at site in clean & healthy condition.

9. Cleaning of LDO Guns, Checking of ignition.

10. Ensuring that there is no oil spillage at site while working on oil gun & associated system. Waste oil to be

collected in oil trays/ containers. Waste oil must not be kept at site. It is to be removed after completion of

work.

11. Cleaning of LDO filters located at firing floor as per schedule or requirement.

12. Reclamation of oil guns flexible hoses and nozzle tips.

13. Replacement of other damage/ worn out parts.

1.8 SOOT BLOWING SYSTEM:

1. Inspection of all Soot Blowers and their cut-off/ Limit switches on regular basis and rectifying the defects.

2. Manual Operation of wall blower for checking freeness of blower, Removal of wall soot blowers mechanical

jamming.

3. Checking and top-up of oil level of gear box of all soot blowers. Attending oil leakages from gear boxes.

4. Replacements of malfunctioning puppet valves.

5. Attending steam leakages from flanges.

6. Setting of operating pressure of all Soot blowers.

7. Retracting of soot blower, if stuck up in advance position.

8. Preventive Maintenance and Breakdown maintenance of all soot blowers.

9. Overhauling of puppet valve.

10. Maintenance of gear box and carriage of LRSB and APH soot blowers.

11. Replacement of bent/ damaged lance tube/ feed tube assembly of soot blowers.

12. Alignment of LRSB and APH soot blowers.

13. Travel checking of soot blowers and adjustment of the same if required.

14. Preventive maintenance of Motorized actuators and control valve.

1.9 FANS:

1. Inspection of fans, IGV, associated dampers/ gates, lube oil system, expansion joints on regular basis and

rectifying the troubles.

2. Routine checking of cooling system of fan bearings, arresting leakages of cooling water.

3. Cleaning of lube oil filters as and when required.

4. Arresting air and flue gas leakages from fan casing, shaft seal, inspection door, isolating gate/ dampers,

expansion bellows, inlet & outlet ducts.

5. Mechanical jamming removal of associated dampers.

6. Attending all points of air ingress for fan handling flue gas.

7. Regular monitoring and top up of oil level in bearing housing of Fan.

8. Adjust the operating pressure of fans if required.

9. Inspection, servicing and lubrication of all dampers/ gates and actuator gear boxes.

10. Ensuring tightness of all fasteners of fans, ducting arrangement & associated system.

11. Opening/ closing of fan the inspection door/ manhole, decoupling/coupling the fan from motor for

maintenance work.

12. Removal of top half casing of fan & other enclosures if required.

13. Dismantling of fan as per requirement. Complete internal cleaning of fan system.




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14. Checking of impeller and blades for Ash deposition on impeller, clean the impeller.

15. Complete checking of lube oil system & bearing lubrication system.

16. Arresting leakages of lube oil system of Fan

17. Checking of axial and radial clearances of impeller and suction cone, adjustment if required.

18. Bearing run-out, skewness inspection.

19. Cleaning & inspection of bearings and shaft.

20. Inspection/ replacement of bearing, bearing housing/ pedestal, fan impeller assembly.

21. In-situ repairing of damage / worn out blades of impeller by hard facing as per directions of owner EIC.

22. Checking of loose parts of fans and discharge ducts and rectify

23. Ensure tightness of all fasteners, replace if required.

24. Reclamation of IGV & Motorized Blades as and when required.

25. Complete box-up of fan casing & inspection doors with fresh gaskets.

26. Alignment, balancing & levelling of fans as & when required.

27. Maintenance of inlet & outlet dampers

28. Inspection and rectification for high vibration & abnormal sound.

29. Checking of damper freeness and full open and close position.

30. Cleaning/ servicing of IGVs & link rods. Repairing of inlet guide vanes assembly. Repair of eroded damper shaft,

stuffing box etc.

31. Repair/ replacement/ cleaning of suction filters.

32. Replacement of bearing cooling water pipe, if required.

33. Replacement of shaft seal covers, if required.

34. Inspection & Repairing/ replacement of expansion bellow.

35. Removed impeller to be repaired & kept ready as spare impeller.

36. To carry out CBM of all fans as per schedule.

1.10 AIR PRE HEATER:

1. Arresting air/ flue gas leakage from inspection & manhole doors, expansion joints, dampers etc. Replacing all

damaged fasteners/ gaskets of all inspection doors, dampers and gates.

2. Opening of all access doors of APH for inspection & execution of work and closing them after completion of

work by applying holetite, fresh asbestos rope to be used.

3. Providing temporary scaffolding at hot end/cold end for inspection & execution of maintenance work and

removal of the same after completion during opportunity shutdown.

4. Maintenance purpose replacement and resetting of hot end & cold end axial, radial, by-pass/ circumferential,

rotor post, static seals.

5. Repairing of sector plates & spool at in board and out board. Repairing of in board static seal and axial seal

plate to radial sector plate seal.

6. Repairing of SS seal during opportunity shutdown at guide bearing area in case of leakage. Replacement of

sealing rope at guide bearing stuffing box for restricting the leakages.

7. Replacement of support bearing, guide bearing.

8. Repairing/ replacement of eroded/ damaged supports, bracings, hangers etc.

9. Repairing of expansion joints, strengthening of welding joints of flue gas/ air ducts.

10. Repairing of all manholes, damage fasteners to be replaced.

11. Repairing/ reclamation of eroded portions of casing & duct etc.

12. Repairing of Refractory as and when required.

13. APH Cleaning by water washing.

14. Internal cleaning of APH and ash removing above the sector plates and duct.

15. Rectification of bulged/ damaged parts of APH body.

1.11 ELECTRO STATIC PRECIPITATOR (ESP) AND BAG FILTER:

1. Opening and closing of ESP manholes/ inspection windows whenever required. Opening of manholes should be

strictly attempted only after obtaining work permit and man entry should be made strictly after local earthing

of fields. Closing of manholes to be made only after double ensuring total evacuation of manpower from the

ESP.

2. Inspection & checking of complete fields from inside and rectification of defects.

3. Tightening of loose nut bolts and welding if, required.




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4. Replacement of asbestos rope of ESP top manholes and side manholes.

5. Repairing of manholes by replacing the damaged plate with new one.

6. Cleaning of ash to collecting & emitting electrodes by water washing.

7. Servicing/ repairing of rapping hammers and clamps.

8. Repairing of shaft by welding, grinding process if, required.

9. Maintenance & periodic calibration of CEMS as per CPCB norms.

10. Topping up of oil in rapping motor gear box. Greasing of rapping system as per schedule.

11. Decoupling and dismantling of damaged rapping gear box of rapping system. Repairing damaged gear box by

replacing damaged parts & oil seals. Installing new/ repaired Gear box, its alignment & coupling with rapping

shaft.

12. Removal of damaged emitting/ collecting electrodes.

13. Alignment correction of distorted emitting and collecting electrodes.

14. Arresting air ingress; attend all air & flue gas leakages.

15. Weld repair and patch work of ESP casing.

16. Repairing of ESP inlet GD Screen. Fixing of diverters.

17. Replacement of damaged Filter bags and cages as per instruction of Owner’s EIC during opportunity

maintenance.

18. Rectification of air leakages of bag filters purging pipes.

19. Inspection, trouble shooting and adjustment of Lifting valve and Bypass valves.

20. Repairing & replacement of bag filter purging system equipment (Filter/PRV/Valves/receiver tank).

21. Maintenance of fluidizing conveying system of ESP.

22. Inspection of emitting electrodes anvil beam for crack if any during opportunity shutdown and repairing of the

same.

23. Rectification of fly ash conveying system mechanical, Electrical & C&I problems and ensure 100% healthiness

for operation.

1.12 BOILER PRESSURE PARTS:

1. During boiler tube leakage, contractor shall attend the maintenance job along with inspection of all other

Pressure part, D-metering and repairing without affecting running unit manpower and T&P. 50 joints per

year/unit are covered in contractors scope and extra joints fees will be paid which will be agreed mutually.

2. Deploying multiple gangs (supervisor, IBR welder, general welder, grinder man, fitter, rigger & helpers) to

attend tube leakages at different locations/ to complete the work within shortest possible time. The approval

for qualification of deployed manpower will be in the scope of owner.

3. All possible preparatory work like; shifting of scaffolding/ sky climber material near tube leakage location,

shifting of welding machine and welding cable, shifting of oxygen/ acetylene/ Argon cylinders, shifting of new

tube, bends, membrane plates, connection of water hoses, shifting of new insulation and refractory material,

electric supply & lighting arrangements, shifting of tube cutter/ grinder/ electrode oven/ HP electrodes to be

completed during boiler cooling time to reduce the total shutdown time.

4. Uninterrupted working arrangements to be made during boiler tube leakage.

5. Opening & closing of Inspection/ Manhole doors for boiler inspection and maintenance.

6. Inspection of complete Boiler including penthouse, first pass, second pass, valves and drum manhole doors for

all tube leakage identification in first attempt.

7. Making approach and required working platform scaffolding for inspecting and attending the tube repairing in

boiler first pass, second pass. Removal of refractory for attending tube leakage at pent house.

8. Preparation of working platform on furnace S panel to approach & work inside furnace. Erection & removal of

sky climber/ scaffolding inside the furnace.

9. Identification of leakage point in boiler Pressure Parts and confirm with Owner’s EIC.

10. Remove insulation, seal boxes, refractory, cutting of fins, buck stay support, scallop bar, wall blower seal boxes,

clamps, cutting of skin casing & duct walls as per tube approach making requirement to attend the tube repair

work.

11. Internal washing of boiler pressure parts, cleaning of pressure parts as per work requirement.

12. Measuring of tube thickness by D-meter. Marking of eroded/ leaked tubes during Boiler tube Leakage.

13. Lifting/ Lowering of coil/ coil module inside the boiler or removal of coils outside the boiler for making

approach are included in the scope.

14. Replacement of puncture and eroded tubes/ bend by new tubes/bend as per Pressure part SMP.




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15. Proper alignment to be done of repaired coil after work completion.

16. Radiography and Stress Relieving is to be done as per instruction of Owner’s EIC.

17. Welding coil the attachments, clamps, lugs stoppers and supports.

18. Application of new refractory (in small quantity for repairing) wherever required.

19. Weld the fins/ casing, scallop bars and attachments clamps/clits or any other attachment as existed prior to

repairs. Re-fitting of Buck stay bar.

20. Installation of dummy in hydro test device for re-heater hydro test and removal of same after completion of

hydro.

21. Inspection of Boiler during hydro test for any leakages/ seepage and attending the leakages/ defects found.

22. Rectification of all damages/ defects during Boiler inspection.

23. Applying necessary shielding, refractory, gas baffle plate and cassette baffles.

24. Online sealing to attend leakage of steam/ water from pressure parts, without plant shutdown.

25. Inspection/ repairing of all supports, hangers and springs of all steam and feed water piping along with all

headers.

26. Shifting of all temporary scaffoldings, sky climber material back to its original place.

27. Maintenance of Aux boiler and its auxiliaries.

1.13 BOILER DRUM:

1. Attending leakage of drum manholes by gasket replacement & uniform tightening.

2. Opening & closing of drum manholes as and when required.

3. Removal and re-fitting of drum internals like; cyclone separators, dryers for inspection/ cleaning for defect

attending purpose except during boiler annual overhauling.

4. Cleaning of drum and drum internals by gentle wiping/ using coir string. Care to be taken to protect magnetite

layer intact. Replacement of broken fasteners

5. Maintenance of boiler drum local level gauge by replacement of repairing kit. Fastening of fasteners of glass

block as per OEM guidelines.

6. Maintenance and Calibration of Boiler Drum Local Pressure Gauges.

1.14 DUCTS, DAMPERS AND GATES:

1. Arresting air & flue gas leakages from ducts, gates, dampers, expansion bellows (both metallic and non-

metallic), manhole covers etc.

2. Erection of approach and maintenance platforms wherever necessary.

3. Servicing/ repairing/ lubrication of IGV, gates, dampers, chains, gearboxes and actuators. Replacement of all

damage fasteners, shear key, tie-rod etc. wherever required. Reclamation of all eroded parts.

4. Servicing of SADC dampers to ensure freeness and complete travel of them with regards to opening and

closing.

5. Fixing of tags on leaking inspection doors/ gates/ dampers/ flanges/ joints/ expansion bellows etc. for

attending during shutdown.

1.15 VALVES:

1. Inspection and servicing/ repairing/ replacement of all HP and LP steam and water system valves.

2. Assisting in opening and closing of valves (during operation), as & when needed.

3. Arresting steam/ water/ air/ oil leakage from valves gland, bonnet, flange joints and pipe lines by repairing/

welding/ replacement of gasket/ replacement of gland packing.

4. Online sealing of steam/water leakages from valve gland, flanges, bonnet, connecting pipeline welding joints.

5. Replacement of defective valve by new / repaired valve.

6. Dismantling of defective valve, cleaning & servicing of all the parts like yoke rods, yoke nuts, yoke bushing and

other fasteners.

7. Repair/ replace valve’s damage parts like; operating wheel, lock nut, gland packing bolts, coupling bolts of

valves & actuator, bonnet bolts etc.

8. Replacement of self-sealing ring, pressure seal ring, flange gasket, gland packing etc.

9. Lapping of valve seat & disc of valves using lapping paper to achieve desired blue matching contact and mirror

finish in case of safety valves.

10. Checking of stem/ spindle run-out & rectification if necessary as per instruction of E.I.C.

11. Hydro test of the repaired valve after assembly.




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12. Servicing/ repairing of valves, jamming clearing if requires, ensuring lubrication of bushes and gears of actuator

gear box.

13. Servicing and replacement of damaged part of actuator gear box.

14. Assisting in opening & closing limit/ torque settings of the motorized/ pneumatic operated valves, to ensure

full opening & closing of the valves.

15. Defect rectification of Safety valves, ERVs and Start up vents.

16. Attending malfunctioning of safety valves viz. simmering, chattering, hammering & passing in running

condition.

17. Assisting in safety valves setting/ floating as & when required.

18. Gagging of safety valves as and when required.

1.16 DOSING & SWAS:

1. Maintenance of all HP and LP dosing pumps.

2. Attending leakages from pumps/ piping/ valves/ tanks. Cleaning of NRVs and Strainers. Complete routine

maintenance/ overhauling of all chemical dosing system.

3. Servicing of dosing tank level indicators and agitators.

4. Attending leakages from SWAS piping system.

5. Maintenance of SWAS desalting pump.

1.17 CHP, LHP & FEEDER BREAKER SYSTEM

1. CHP System:

a) Maintenance of Grizzly & Ground Hopper

b) Maintenance of Paddle Feeder

c) Maintenance of Belt Conveyors

d) Maintenance of Primary Crusher

e) Maintenance of Screen

f) Maintenance of Secondary Crusher

g) Maintenance of Magnetic Separator

h) Maintenance of Bag Filters

i) Maintenance of Bag Filter Compressor

j) Maintenance of Belt Weigher

k) Maintenance of Dozers & Loader.

2. LHP System

a) Maintenance of Grizzly

b) Maintenance of Ground Hopper

c) Maintenance of Belt Conveyor

d) Maintenance of Lime Crusher

e) Maintenance of Bucket Elevator

f) Maintenance of Drag Chain Conveyor

g) Maintenance of Pneumatic Conveying System

3. Feeder Breaker

a) Maintenance of Hopper

b) Maintenance of Crusher

c) Maintenance of Conveyor

1.18 BED ASH, FLY ASH CONVEYING AND ASH UNLOADING SYSTEM

1. Bed Ash Conveying System

a) Maintenance of Bed Ash Scrapper Conveyor

2. Fly Ash Conveying System




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a) Maintenance of Vessels

b) Maintenance of pipe lines & bends

3. Ash Unloading System

a) Maintenance of Bag Filters

b) Maintenance of Wet Ash Unloader

C. HVAC system.

1. Maintenance and overhauling of Chiller Screw Compressors.

2. Descaling and brushing of condenser and evaporator tube.

3. Maintenance and Servicing of Air Handling Units.

4. Maintenance of Chiller pumps.

5. Maintenance of CW pumps.

6. Maintenance of Makeup pumps

7. Maintenance and Servicing of Air Washer Units.

8. Maintenance and Servicing of Package AC units.

9. Maintenance and Servicing of Tower AC units.

10. Maintenance and Servicing of Spilt AC.

11. Maintenance of Refrigerant Air Driers.

12. Maintenance of all HVAC related Piping’s, Ducting’s, Diffusors, Dampers, valves and Drains etc.

13. To be maintain respective required temperatures in all areas, Periodic heat load test and air flow distribution test of rooms

with connecting instruments (Anemometers, Sling type sychrometers, etc.) and controlling parameters within limits and

submission of reports.

D. SCOPE OF BOP MAINTENANCE

1. MAINTENANCE OF ELECTRIC HOISTS

1.1 Carry out external cleaning of equipment.

1.2 Greasing of bearings.

1.3 Check the oil level of thruster brake, if low top-up with transformer oil.

1.4 Lubrication of rope with cadmium compound.

1.5 Check the rope for twist and damage.

1.6 Check the brake adjustment / liner condition.

1.7 Check the oil level in gearbox if level is low top-up.

1.8 Take trial run for smooth operation.

1.9 Motor decoupling and coupling to be carried out as per requirement.

1.10 Assistance to be given to C&I and electrical department as per requirement and instruction of EIC in emergency

situations.

1.11 Equipment external cleaning to be done during every PM.

1.12 Equipment painting to be done during every overhauling painting material in owner scope.

1.13 Spill over oil / water / grease / cotton waste / etc. in surrounding area and floor to be cleaned as per the instructions

of EIC.

1.14 Assisting and carrying out load test of the above as per the requirement of Load testing. Statutory fee will be

reimbursed by owner.

2. MAINTENANCE OF COMPRESSED AIR STORAGE TANKS

2.1 Check for segregated water at bottom of tank.

2.2 Cleaning of air receiver tank.

2.3 Servicing of safety valve.

2.4 Pressure testing of air receiver tank. Statutory fee will be reimbursed by owner.

2.5 Servicing of Auto Drain valves

3. MAINTENANCE OF RAW WATER SYSTEM

3.1 INTAKE PUMP & RAW WATER PIPELINE

3.2 Cleaning of equipment.




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3.3 Checking of foundation bolt and tightening.

3.4 Check the tightness of coupling bolt if loose then tighten.

3.5 Checking and arresting any leakages from pump body/gland/valve body/pipeline flange etc. by replacing packing or

gaskets.

3.6 Checking of rubber bush and alignment as per PM schedule.

3.7 PM to be carried out as per given SMP and checklist.

3.8 CBM observations and necessary corrections need to be carried out as per requirement. Equipment should be




3.10 Maintenance of associated valves and pipelines of the system.

3.11 Overhauling of pump and replacement of damage parts as per instruction of EIC.

3.12 Overhauling to be carried out as per given SMP and checklist.


3.14 Arresting leakages from pipelines and valves including underground piping.

3.15 Necessary arrangements for excavation of underground piping should be done.

3.16 Replacement of pipeline and valves as per requirement.

3.17 Assistance to be given to C&I and electrical department as per requirement and instruction of EIC on emergency

situations.


3.19 Equipment painting to be done during every overhauling. Painting material will be provided by owner.

3.20 Spill over oil / water / grease / cotton waste / etc. in surrounding area to be cleaned as per the instructions of EIC.

4. WATER RESERVIOR TRANSFER PUMP





gaskets.

4.5 Checking of rubber bush and alignment as per PM schedule.














situations.




5. MAINTENANCE OF PRE-TREATMENT PLANT (PT)

5.1 RAW WATER BOOSTER PUMPS




gaskets.





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situations.




6. MANUAL DRIVEN BUTTERFLY VALVE

6.1 Carry out the external cleaning of valves.

6.2 Attending gland leakages either by tightening or by replacing the glands.

6.3 Attending flange / Bonnet leakages either by tightening or by replacing the gasket / seal ring.

6.4 Attending the problem of valve mechanical jamming.

6.5 Greasing of valves.

6.6 Welding of handles / putting new handles to the valve.

6.7 Repair and revival of damaged valves/ parts of valves such as discs, spindles, bonnets etc.

6.8 Removal of grating & fixing the same.

6.9 Spill over oil / water / grease / cotton waste / etc. in surrounding area to be cleaned up to the satisfaction of EIC.

7. PLAIN STEEL GATE

7.1 Periodically checking if any jamming is found in gate.

7.2 Gate is to be made smooth for operation.

7.3 If replacement is needed, loosen the bolts of the gates for removal.

7.4 Erect new gates in position.

7.5 Tighten all the gate bolts.

7.6 Trial of new gate.


8. HIGH RATE SOLID CONTACT CLARIFIER

8.1 Dewatering of basin by using suitable dewatering pump. Dewatering pump will be provided by owner

8.2 Cleaning of basin and removal of mud/sludge. Additional man power cost will be reimbursed by owner

8.3 Servicing/replacement of mechanical maintenance of mud pumps.


8.5 Routine maintenance of Agitator.

8.6 Overhauling of clarifier unit as per schedule and requirement.

8.7 Overhauling to be carried out as per SMP and checklist. Instruction of EIC must be followed.


8.9 Necessary arrangements for excavation of underground piping should be done. Mobile equipment like JCB will be

provided by owner.



situations only.


8.13 Equipment painting to be done during every overhauling. Paint will be provided by owner.

8.14 Spill over oil / water / grease / cotton waste / etc in surrounding area to be cleaned as per the instructions of EIC.




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9. CLARIFIED RESERVOIR

9.1 Draining of reservoir/filter tank by using suitable dewatering pump. Dewatering pump will be provided by owner.

9.2 Removal of mud/sludge from the reservoir. Additional man power cost will reimburse by owner.

9.3 Cleaning/replacing of screen filter element as required or instructed.

9.4 Refilling of tank/reservoir.

9.5 Maintenance of valves and pipelines associated with tank/reservoir.

10. CLARIFIED RESERVOIR GATE

10.1 Periodically checking if any jamming is found in gate.

10.2 Gate is to be made smooth for operation.

10.3 If replacement is needed, loosen the bolts of the gates for removal.

10.4 Erect new gates in position.

10.5 Tighten all the gate bolts.

10.6 Trial of new gate.


11. PUMP - SERVICE WATER PUMP, DM SUPPLY PUMP, DM BACKWASHING PUMP




gaskets.














situations.




12. MAINTENANCE OF POTABLE WATER TREATMENT PLANT:AIR SCOURING FILTER PUMP




gaskets.














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situations.




13. AIR SCOURING FILTER BACKWASHING PUMP & POTABLE TRANSFER PUMP





gaskets.

13.5 Checking of rubber spider and alignment as per PM schedule.














situations.




14. AIR SCOURING FILTER

14.1 Opening & closing of manholes / inspection doors.

14.2 Dismantling of vessel internals, cleaning & inspection of components

14.3 Internal cleaning of Tanks / Vessels.

14.4 Repair or replacement of damaged or worn out parts.

14.5 Assembly of internals with new or usable spares & components.

14.6 Attending to leakages from tanks & vessels.

14.7 Replacement of gaskets.

14.8 Tightening, repair or replacement of bolts.

14.9 Application of protective coating.

14.10 Checking and cleaning of drain valves, associated drain pipe lines, overhaul of safety valves etc.

15. MAINTENANCE OF DEMINERALIZATION WATER TREATMENT PLANT

TANK & VESSELS (MECHANICAL FILTER,ACF,SAC,SBA,DEGASSIFIER TANK, RESIN STORAGE TANK, MB, DM STORAGE TANK,

H2SO4 STORAGE TANK , HCL STORAGE TANK, ALKALI STORAGE TANK)

15.1 Carrying out periodic, preventive, corrective maintenance and overhaul of all type of vessels, pressure vessels and

water tanks related with BOP equipment’s and obtaining statutory permissions.

15.2 Opening & closing of manholes / inspection doors.

15.3 Dismantling of vessel internals, cleaning & inspection of components

15.4 Internal cleaning of Tanks / Vessels.


15.6 Assembly of internals with new or usable spares & components.




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15.7 Attending to leakages from tanks & vessels.


15.9 Tightening, repair or replacement of bolts.

15.10 Application of protective coating.

15.11 Checking and cleaning of drain valves, associated drain pipe lines, overhaul of safety valves etc.

15.12 Epoxy lining / Fiber glass lining / Rubber lining work of vessels, Tanks and piping.

16. PUMP- DEGASSER BOOSTER PUMP,DM TRANSFER PUMP, REGENERATION PUMP, NEUTRALIZATION PUMP, H2SO4

UNLOADING PUMP, HCL ACID UNLOADING PUMP, ALKALI UNLOADING PUMP




16.4 Checking and arresting any leakages from pump body/gland/valve body/pipeline flange etc. by replacing packing

or gaskets.

16.5 Checking of rubber spider and alignment as per PM schedule.














situations.




17. ACF & FIBER FILTER, NEUTRALISATION BLOWER

17.1 Carrying out periodic, preventive, corrective, breakdown maintenance and overhaul of all type of blowers in the

BOP area including replacement of equipment.

17.2 Decoupling & coupling of drives.

17.3 Dismantling of blower; cleaning & inspection of components for abnormality.


17.5 Assembly of blower with new or usable spares & components.

17.6 Removal & Re-positioning of blower.

17.7 Tightening or replacement of V belts, alignment of belts.

17.8 Alignment of blower with drives.

17.9 Attending to abnormal sound / vibration in the blower.


17.11 Removal & fitting of belt guard.

17.12 Tightening, repair or replacement of foundation bolts.

18. SODIUM HYPO-CHLORITE SYSTEM

18.1 Carrying out periodic, preventive, corrective, breakdown maintenance and overhaul of chlorination systems.

18.2 Repair or replacement of damaged or worn out parts of chlorinator.

18.3 Attending to leakages from the systems.

18.4 Cleaning electrolysis chamber as prescribed in the OEM manual.

19. MAINTENANCE OF FIRE FIGHTING PUMP HOUSE




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19.1 HYDRANT PUMP


2. Check the oil level of pump thrust bearings if low top-up with oil.

3. Check the tightness of foundation bolt if loose then tighten.

4. Check the tightness of coupling bolt if loose then tighten.

5. Check the gland packing for excessive water leakage, if found arrest it either by tightening or by replacing the

glands.

6. Check the alignment of pump & motor and take corrective action.

7. Check the tightness of bolts in all flanges joint if loose then tighten.

8. Check the flow of water through thrust bearing cooler if interrupt noticed flush the water line or take

corrective action.

9. Check the tightness of bolts in all flanges joint if loose then tighten and attend all leakages.

10. Removal of grating & fixing the same.

11. Clean the strainers if damaged replaced / replaced the same.


13. Spill over oil/water/grease /cotton waste/etc. in surrounding area to be cleaned up to the satisfaction of EIC.

19.2 HYDRANT DIESEL ENGINE & PUMP


2. Check the Lube oil level if low top-up with approve brand of oil

3. Check the tightness of foundation bolt if loose then tighten the same.

4. Check the coupling in between engine and pump if found damaged then replace and realignment to be done.

5. Check the radiator water level if top up with water.

6. Check the tightness of radiator fan belt.

7. Clean the inlet air filter element if damaged replaced the same.

8. Check for any leakage in oil, diesel & water system if found then tighten the same.

9. Clean / check the lube oil filter element.

10. Change the lube oil & lube oil filter element. Thoroughly soak the density type strainer element in clean fuel oil

before installing.

11. Change the diesel filter element.


13. Spill over oil/ wate / grease / cotton waste / etc. in surrounding area to be cleaned up to the satisfaction of EIC.

19.3 SPRAY PUMP


2. Check the oil level of pump thrust bearings if low top-up with oil.



5. Check the gland packing for excessive water leakage, if found arrest it either by tightening or by replacing the

glands.


7. Check the tightness of bolts in all flanges joint if loose then tighten.

8. Check the flow of water through thrust bearing cooler if interrupt noticed flush the water line or take

corrective action.



11. Clean the strainers if damaged replaced / replaced the same.


13. Spill over oil /water /grease /cotton waste / etc. in surrounding area to be cleaned up to the satisfaction of EIC.

19.4 SPRAY DIESEL ENGINE & PUMP


2. Check the Lube oil level if low top-up with approve brand of oil

3. Check the tightness of foundation bolt if loose then tighten the same.

4. Check the coupling in between engine and pump if found damaged then replace and realignment to be done.

5. Check the radiator water level if top up with water.




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6. Check the tightness of radiator fan belt.

7. Clean the inlet air filter element if damaged replaced the same.

8. Check for any leakage in oil, diesel & water system if found then tighten the same.

9. Clean / check the lube oil filter element.

10. Change the lube oil & lube oil filter element. Thoroughly soak the density type strainer element in clean fuel oil

before installing.

11. Change the diesel filter element.


13. Spill over oil /water /grease /cotton waste / etc. in surrounding area to be cleaned up to the satisfaction of EIC.

19.5 JOCKEY PUMP




4. Check the gland packing for excessive water, if found arrest it either by tightening or by replacing the glands.


6. Check the tightness of bolts in all flange joints if loose then tighten and attend all leakages.

7. Removal of grating and fixing the same.

8. Clean the thrash rack strainer if damaged replaced / repaired the same.



11. Assistance to be given to C&I and electrical department as per requirement and instruction of EIC on

emergency situations.

12. Equipment external cleaning to be done during every PM.

13. Equipment painting to be done during every overhauling. Painting material will be provided by owner.

14. Spill over oil /water /grease / cotton waste/ etc in surrounding area to be cleaned as per the instructions of EIC.

20. MAINTENANCE OF CIRCULATING WATER SYSTEM

20.1 CIRCULATING WATER PUMPS


2. Check the oil level of pump thrust bearings if low top-up with suitable oil or equivalent grade of oil.

3. Check the tightness of foundation bolt & take corrective action if required.

4. Check the tightness of coupling bolt & take corrective action if required.

5. Check the gland packing if excessive water, if found arrest it either by tightening or by replacing the glands.

6. Check the alignment of pump & motor and take corrective action

7. Check the flow of water through thrust bearing cooler if interruption noticed flush the water line or take

corrective action.

8. Check for any oil / water leakages from valves, flanges etc if noticed take corrective action for arresting the

leakages.

9. Clean the trash rack screen/Strainers, if found damaged replace / repair the same.

10. Greasing of stop log gates & associated valves in CW System.

11. Preventive maintenance of hydraulic system of CW discharge valve.

12. Assisting during underwater services of CW Pump, arrangement of divers etc is in owner’s scope.



15. Spill over oil / water / grease / cotton waste / etc in surrounding area to be cleaned up to the satisfaction of

EIC.

20.2 HYDRAULIC BUTTERFLY VALVE STATION

1. Oil level checking and top up as per requirement

2. Checking and CBM of hydraulic pump as per schedule.

3. Necessary corrections to be carried out in pump internals and its base as per requirement.

4. Replacement of pump and it’s parts as per requirement Overhauling of pump and associated piping’s

5. PM to be carried out as per given SMP and PM check list.




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6. Overhauling of hydraulic system as per given SMP and check list.

7. Replacement of oil and cleaning of tank.

8. Setting of PRVs, dump valves and flow control valves for line pressure adjustment is under C&I scope.

9. Replacement of hydraulic hoses and cylinder seal kit as per requirement.

10. Trial to be taken and in case of malfunctioning or jamming of valve, necessary corrections to be done


12. Assistance to be given to C&I and electrical department as per requirement and instruction of EIC on

emergency situations.

13. Equipment external cleaning to be done during every PM.

14. Equipment painting to be done during every overhauling. Painting material will be provided by owner

15. Spill over oil / water/ grease/cotton waste / etc in surrounding area to be cleaned as per the instructions of EIC.

20.3 AUTO CLEAN SCREEN

1. In order for a bar screen to operate effectively, the capacity of the filter and cycle rate must to output the

desired water flow rate. Conditions that influence this are the size and concentration of debris, the input flow

rate of the current, and the cross-sectional area of the channel.

2. Bar screen that affect the outcome include mesh size or wire diameter and the speed of the recycle system to

be cleaned

3. Mesh (sieve) size or wire diameter determines the size of the holes or open space in the filter, thus

determining what particles can be captured. Mesh sizes but larger diameter wires and fewer squares per inch

result in a finer filter. Finer filters which will capture smaller-size material but will consequently become

saturated and clogged faster than screens with larger openings same to be cleaned.

4. Cycle rate is how quickly a bar screen moves. A screen that cycle faster can handle larger volumes of incoming

solids without becoming clogged. Screen cycle rate is limited by how well it can pick up and clean off solids

during the removal stage.

5. Important factor to consider is whether an inline strainer would perform better than a bar screen. Inline

strainers allow material screens to be moved to a scraper for cleaning via a simple hand wheel or actuation

motor. They are ideal for processes where process flow must remain uninterrupted during filtration. Same

needs to be cleaned

6. Bar screens suited for higher solids concentrations, and many times will slow down the flow rate of the stream.

In streams with a complex concentration of solids, multiple bar screens (of gradually finer size) are placed in

sequence followed by pumps to re-establish flow rate. Inline strainer(s) come later to maintain flow and catch

the remaining solids. Same needs to be inspected frequently.

7. Assisting during underwater services of CW Pump will be carried out by contractor, but arrangement of divers

is excluded from Contractor scope.

20.4 SUMP PUMP (200 M3/Hr.)


2. Check all joints for leakages if any arrest it.

3. Check all foundation bolts for tightness and take corrective action if required

4. Repairing/Replacement of damage components.

5. Spill over water / grease / cotton waste / etc in surrounding area to be cleaned as per the instructions of EIC.

6. Cleaning of equipment and associated systems to be carried out in every PM.

7. Cleaning and painting of equipment and associated systems to be carried out in every overhauling Painting

material will be provided by owner.

20.5 STEEL GATE

1. Periodically checking if any jamming is found in gate.

2. Gate is to be made smooth for operation.

3. If replacement is needed, loosen the bolts of the gates for removal.

4. Erect new gates in position.

5. Tighten all the gate bolts.

20.6 MAINTENANCE OF COOLING FAN, GEAR BOX AND ACCESSORIES





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2. Check the oil level of gear box if low top-up with oil.

3. Check the oil leakage in gear box & local level glass if leakage found then take corrective action.

4. Check the tightness of foundation bolt gear box & take corrective action if required.

5. Check the tightness of coupling bolt & take corrective action if required.

6. Check the tightness of U bolt in between fan blade & gear box if loose then tighten.

7. Check the alignment of gear shaft & motor and take corrective action

8. Check & adjust the pitch angle of fan blade.

9. Check and clean the all pipe nozzles and clean other debris inside the cooling tower cell.


11. Check the riser pipe valve if jam then repair the same.

12. Clean the trash rack screen in cooling tower if damaged replace / repair the same.

13. Check the tightness of bolts in gear box cover & take corrective action if required.

14. Check the Drift eliminator/fill pack position if found disturbed then align it to original position.

15. Check the leakage from PVC pipe inside the cooling tower if so then attend & realign the same.


17. Greasing of associated valves in Cooling tower System.

18. Assisting during underwater services of cooling tower basin etc. Additional manpower cost has to be

reimbursed.


20. Spill over oil / water / grease / cotton waste / etc in surrounding area to be cleaned up to the satisfaction of

EIC.

21. Routine Maintenance /overhauling of CT fan Gearbox.

20.7 FIBER FILTER

1. Carrying out periodic, preventive, corrective maintenance and overhaul of all type of vessels, pressure vessels

and water tanks related with BOP equipment’s and obtaining statutory permissions.

2. Opening & closing of manholes / inspection doors.

3. Dismantling of vessel internals, cleaning & inspection of components

4. Internal cleaning of Tanks / Vessels.

5. Repair or replacement of damaged or worn out parts.

6. Assembly of internals with new or usable spares & components.

7. Attending to leakages from tanks & vessels.

8. Replacement of gaskets.

9. Tightening, repair or replacement of bolts.

10. Application of protective coating.

11. Checking and cleaning of drain valves, associated drain pipe lines, overhaul of safety valves etc.

12. Epoxy lining / Fiber glass lining / Rubber lining work of vessels, Tanks and piping.

21. MAINTENANCE OF WASTE WATER TREATMENT PLANT

21.1 EFFLUENT TREATMENT PLANT(ETP) & RO PLANT

1. Carrying out periodic, preventive, corrective, breakdown maintenance and overhaul of Drainage Pump house,

Retention Basin, Lamella Clarifiers, Auto- Back wash filters, Clarified Water tanks/ clear water Basin, Clarified

Water pumps.

2. Carrying out periodic, preventive, corrective, breakdown maintenance and overhaul of Ultra-Filters, UF water

tanks, UF backwash water pumps, UF water pumps.

3. Carrying out periodic, preventive, corrective, breakdown maintenance and overhaul of RO Cartridge filters, RO

High Pressure pumps, RO equipment, RO water tank, Flushing pumps for RO, RO water pumps, CW water back

water pumps, Coagulant dosing devices, Coagulant dissolve tanks, Coagulant transfer pumps, Coagulant

solution tanks, Coagulant measuring pumps to clarification & UF, Coagulation aid dosing devices, Coagulation

aid solution tanks, Coagulation aid measuring pumps, Coagulation aid solution tanks to centrifuge, Coagulation

aid measuring pumps to centrifuge, Acid / Alkali dosing devices to UF, Acid / Alkali dosing tanks to UF, Acid /

Alkali dosing pumps to UF & RO, Scale inhibitor Tanks / Pumps / Dosing devices, NaHSO4 Dosing Tanks / Dosing

devices /Pumps, NaOCl Dosing Tanks / Dosing devices /Pumps to clarification & UF, Sludge dewatering

systems, Sludge concentrate basins, Sludge transfer pumps, Centrifuges, Sludge hoppers, Cleaning devices for

RO & UF, Cleaning tanks for RO & UF, Cleaning pumps for RO & UF, Cleaning cartridge filters for RO & UF, RO




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& UF membranes, Chlorine di-oxide generator and dosing system, Desilting pump, Sludge centrifuge.

4. Regular preventive measures to be taken to avoid accumulation of sediments, deposits to ensure there is no

break-down of lamella clarifier.

21.2 SEWAGE TREATMENT PLANT (STP): The scope complete maintenance of Sewage Treatment plant equipment’s

including inlet piping work, outlet piping work.

E. SCOPE - MAINTENANCE: AHP AREA

1. The maintenance work will cover total Mechanical related Routine, Preventive, and Predictive, Breakdown maintenance of

the system, sub-systems and equipment’s as per list mentioned hereafter.

2. Execution of equipment overhauls.

3. The maintenance work will include servicing / replacement, internal checking, trouble shooting and rectification of defects

of these equipment’s as per instructions of Engineer in charge (EIC).

4. During any short or long shutdown the defect rectification and preventive maintenance responsibility is covered in the

scope of this contract.

5. At the time of annual overhauling of the units, the contractor will carry out overhauling of all the equipment’s of AHP, as

required at no extra cost. Requirement of spares and consumables will have to be assessed well in advance and submitted

to the EIC or his representative.

6. Regular walk-through audit of all areas and identification of defects & leakages. Attending all leakages & defects in time. A

leakage of ash slurry from pipe / couplings up to ash dyke has to be arrested on most priority basis and in minimum possible

time.

7. Arresting Ash / water / Oil / Air leakages from piping / valve / flanges / inspection door / bonnet / stuffing box / union /

coupling / tees / by gasket replacement / by O ring replacement / by caulking the asbestos thread / applying putty / gland

packing replacement / tightening of fasteners / tightening of gland follower / welding etc.

8. Replacement and Servicing of all type of Valves, Dome valves, Air intake valves, Knife gate valves, pneumatic operated

valves, NR valves, Butterfly valves, Pilot valves, Air valves and Test valves. Valve seats and disc hard facing and lapping &

blue matching, slide / seat replacement, seal replacement to achieve leak free tightness. Dom valve seals, slide valve seals

shall be provided by VSLP.

9. Replacements of valves, flanges, fasteners, orifices, pipe fittings, traps, filter elements etc. Cutting & welding work required

for the same.

10. Cleaning of all Filters and Strainers of Air / Water / Oil circuits.

11. Draining of oil / removal of old grease required for maintenance and re-filling the same / new on completion of

maintenance activity. Replacement of complete lubricant after thorough cleaning of reservoir of the equipment whenever

required.

12. Separate storing and centrifuging of used oil for future use.

13. Servicing / overhauling of slurry pumps, mud pumps, air blowers

14. Repair of all fly ash hoppers, its inspection doors, vibrators, fluidizing pads etc.

15. Periodic performance monitoring of all types of pumps (water pumps, mud pumps, and slurry pumps), compressors &

blowers and replacement of damaged parts. If required, complete overhauling of the equipment’s has to be carried out.

16. Complete overhauling of pump, Inspection of Pump bearing, replacement of bearing, servicing / replacement of mechanical

seal. Pump Motor coupling inspection, coupling replacement, Element / Bushing replacement, Lubrication. Shifting /

placement & alignment of drive motor.

17. Proper alignment & leveling of pipe lines viz. fly ash disposal lines, ash water lines and compressed air lines etc., as & when

required.

18. Damaged & eroded pipes are to be replaced with new ones. Ash piping, coupling and rubber gaskets shall be provided by

VSLP

19. Balancing, Condition Monitoring and corrective actions.

20. Online leak arresting.

21. Lubrication of gears & wire rope of EOT crane, brake liners replacement and setting of brakes, replacement of wire rope,

servicing of gearboxes.

22. Servicing and lubrication of monorails / chain blocks / trolleys of AHP area.

23. Replacement of belts, belt tension adjustment, alignment of pulleys in blowers.

24. Fabrication of patches for leakage arresting from metal sheets, fabrication of shims for alignment, preparation of asbestos /

rubber / metal gaskets from sheet, fabrication of jigs & fixtures for maintenance.




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25. Reconditioning of worn out spares, hard facing.

26. Heating / Cutting of fastener / bearing / coupling whenever required during the maintenance.

27. Repairing of metal structure / floor grills / ladders Ash Handling Plant area .

28. Transportation of spares / material / chemicals from VSLP stores to work site return back to VSLP stores.

29. Unpacking, unloading, unloading / loading of equipment / component on return / sending for outside repairing /


30. Necessary guarding of tools, tackles, spares, dismantled components, scrap materials during carrying out of maintenance

jobs.

31. Work area cleaning and Scrap removal after completion of maintenance activity

32. Erecting Safe scaffolding and approaches to work whenever and wherever required and immediate removal of the same on


33. Touch up painting and corrosive resistance painting of equipment’s including material supply (paints, consumables etc.).

Painting for sign boards, nomenclature of equipment’s etc. in contractor scope.

34. Maintenance of Concentrator

35. Maintenance and overhauling of service air compressors

36. Maintenance and overhauling of absorption air dryer and refrigerant air dryer

37. Maintenance of all bottom and fly ash handling equipment’s as per attached list

F. LIST OF SYSTEMS / EQUIPMENT TO OPERATE AND MAINTIAN:

This list is indicative and any additional equipment’s as per actual erection will also considered included.

1 Bottom Ash Handling and systems: Submerged scrapper conveyor, clinker grinder, Drag

conveyor, Bottom Ash silos, slurry pumps, concentrator, dredge pumps, ash water pumps

2 Fly Ash Handling and systems: ESP ash hoppers, Bag filter ash hoppers, Air tank, Pressure /

Vacuum relief valves pneumatic transportation vessels, Screw type air compressors, Freezing

type compressed air dryers, Air tanks, Water pumps, Mud pumps, Water tank, Fluidizing air

blowers for ash hopper, Rotary air lock

3 Fly Ash Silo and systems: Ash silos (4 no’s) Dry ash unloaders, Rotary Feeders, Vent bag filters,

Fluidizing blowers for ash silo, Vacuum pressure relief valve, Mud pumps,

4 All Cranes, Hoists, Mono rails, chain blocks, trolleys installed for above equipment’s

5 All Dom valves, pneumatic gate valves, manual gate valves, knife gate valves, NRVs, slide gate

valves, butterfly valves, and pressure relief valves.

6 All Piping, Fittings, Filters / Strainers, Coolers, Valves suction filters, silencers, rubber expansion

joints associated with above equipment’s. All ash piping, air piping and water piping associated

with Ash Handling Plant

7 Complete compressed air system of AHP. All the air compressors of AHP air compressor house

and dryers

G. SCOPE - MAINTENANCE CHP AREA

1. The maintenance work will cover total Mechanical related Routine, Preventive, and Predictive, Breakdown maintenance of

the system, sub-systems and equipment as per list mentioned hereafter. The system shall work on the principle of

minimum breakdown maintenance.

2. Execution of equipment Maintenance.

3. The maintenance work will include servicing / replacement, internal checking, trouble shooting and rectification of defects

of these equipment’s as per instructions of Engineer in charge (EIC).

4. During any short or long shutdown the defect rectification and preventive maintenance responsibility is covered in the

scope this LS contract.

5. At the time of annual overhauling of the units, the contractor will carry out overhauling of all the equipment of CHP as

required at no extra cost. Requirement of spares and consumables will have to be assessed well in advance and submitted

to the EIC or his representative.

6. Regular walk-through audit of all areas and identification of defects & leakages. Attending all leakages & defects in time.

7. Arresting Coal / water / oil / air leakages from piping / valve / flanges / inspection door / bonnet / stuffing box / union /

coupling / tees / by gasket replacement / by caulking the asbestos thread / applying putty / gland packing replacement /

tightening of fasteners / tightening of gland follower / welding etc.




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8. Replacement and Servicing of all type of valves, Flap valves, Diverters, Air valves. Valve seats lapping & blue matching, slide

/ seat replacement, seal replacement to achieve leak free tightness.

9. Replacement of valves, flanges, fasteners, orifices, pipe fittings, traps, filters elements etc. Cutting & welding work required

for the same.

10. Cleaning of all Filters and Strainers of air / water / oil circuits.

11. Draining of oil / removal of old grease required for maintenance and re-filling the same / new on completion of

maintenance activity. Replacement of complete lubricant after thorough cleaning of reservoir of the equipment whenever

required.

12. Separate storing and centrifuging of used oil for future use.

13. Servicing / overhauling of oil pumps, mud pumps, and exhaust fans, air blowers, bag filters.

14. Repair of coal bunkers, coal chutes, hoppers etc.

15. Periodic performance monitoring of all types of pumps (sump pumps, compressors & blowers and replacement of damaged

parts. If required, complete overhauling of these equipment to be carried out.

16. Complete overhauling of pump, Inspection of Pump bearing, and replacement of bearing, servicing / replacement of bush

coupling, inspection of fluid coupling. Pump Motor coupling inspection, coupling replacement, Element / Bushing

replacement, Lubrication. Shifting / placement & alignment of drive motor.

17. Cold & Hot Belt vulcanizing, Pulley lagging to be carried out after preparing / readiness of work for belt joint and pulley

lagging in contractor’s scope. Repairing consumable kits will be arranged by contractor.

18. Maintenance of Fire Detection / Alarm / Prevention / fighting systems installed in CHP area. Servicing / replacement of fire

fighting line components and attending fire water line leakages. Repairing of Fire Hose cabinets including glass fitting.

Preservation and up keeping of hoses when used.

19. Balancing, Condition Monitoring and corrective actions.

20. Lubrication of gears & wire rope of EOT crane, brake liners replacement and setting of brakes, replacement of wire rope,

servicing of gearboxes.

21. Servicing and lubrication of monorails / chain blocks / trolleys of CHP area.

22. Replacement of belts, belt tension adjustment, alignment of pulleys.

23. Maintenance and overhaul of coal crusher, and Roller coal screen

24. Regular and preventive maintenance of Dozer & Loader.

25. Fabrication of patches for leakage arresting from metal sheets, fabrication of shims for alignment, preparation of asbestos /

rubber / metal gaskets from sheet, fabrication of jigs & fixtures for maintenance.

26. Reconditioning of worn out spares, hard facing.

27. Heating / Cutting of fastener / bearing / coupling whenever required during the maintenance.

28. Repairing of metal structure / floor grills / ladders / doors & windows of Coal Handling Plant area / building.

29. Transportation of spares / material / chemicals from VSLP stores to work site return back to VSLP stores.

30. Unpacking, unloading / Loading of equipment / component on return / sending for outside repairing / development

purpose.

31. Necessary guarding of tools, tackles, spares, dismantled components, scrap materials during carrying out of maintenance

jobs.

32. Work area cleaning and Scrap removal after completion of maintenance activity.

33. Erecting Safe scaffolding and approaches to work whenever and wherever required and immediate removal of the same on


34. Touch up painting with corrosion resistance grade paint for the equipment’s (as and when required) including material

supply (paints, consumables etc.). Painting for sign boards, nomenclature of equipment’s etc. in contractor scope.

H. SCOPE OF WORK ELECTRICAL

1. The maintenance work will cover routine, preventive, predictive and breakdown type online/ offline electrical maintenance

as per the guidance from Owner’s EIC for the BTG, BOP, CHP & AHP, Switchyard system,220KV lines & 11KV line, sub-

systems and equipment as per equipment list mentioned hereafter. Associated electrical equipment available at water

intake system and feeder breaker system.

2. Lighting and supply maintenance of Admin building, stores, OHC, other office building.

3. The maintenance work will include trouble shooting, internal checking and rectification of defects, servicing/ repairing/

replacement of failed components of these electrical equipment, testing of equipment and overhauling of electrical

equipment under the guidance of Owner’s EIC excluding LT motors rewinding /Machining/Rotor balancing/ bearing

replacement.

4. During any short or long shutdown, the defect rectification and preventive maintenance shall be under the scope of




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Contractor with existing manpower.

5. Regular as well as need base cleaning of all the electrical panels, electrical attachments and equipment. Proper attention is

to be given towards running equipment during cleaning so that it does not cause any accident to person working or adverse

effect on the equipment. If necessary, cleaning of running equipment is to be carried out in presence of Owner

representatives.

6. Suggestions/ Recommendations: Contractor out of their experience of working in this field may suggest improvements/

modifications in the equipment/ scheme. These shall be discussed in monthly meetings and decision of Owner shall be

intimated. Owner is however not bound to accept such suggestions.

7. Segregating and removing the scraps from each site after completion of work to ensure housekeeping. Shifting of waste oil

drums and scraps material to scrap yard.

8. Implementing safety standards of Owner Safety Section to ensure safety compliance in all activities of O&M under the

battery limits. Safety officers shall be deployed as per requirement and OHS guidelines.

9. The Contractor shall maintain daily logging of the progress made during each shift which includes preventive/ breakdown/

shutdown/ faults attended during the shift.

10. This also includes removal of scrap/ used consumable items/ oil/ ash/ liquid spillages and shifting it to the designated place.

11. Training and Skill development of Contractor’s own team.

12. Any miscellaneous work not mentioned in scope but is essential for smooth, safe and efficient operation of any equipment

in the scope shall be deemed to be in the scope of Contractor.

13. The maintenance work will include trouble shooting, servicing/ replacement, internal checking and rectification of defects

of systems/ sub-systems/ equipment etc.

14. Assisting for testing of all protection relays/ systems, Schemes including Generator protection as and when required and

invariably during annual outage.

15. Replacement of failed/ faulty incoming switch, change over switch, AC/ DC contactor, indicating lamps, push button, power

& rectifier fuses, freewheeling diodes, thermal overload relay, ammeter, voltmeter etc.

16. Replacement of damaged electronic card.

17. Maintenance of Electrical Hoists and Actuators.

18. Calibration of all volt meters and ammeters, energy meter & transducers and report submission.

19. Cleaning, tightening, greasing, oil topping up, control circuit checking of LT& HT motors/ Lighting points/ Receptacles/ Oil

and Dry type transformers with attachments.

20. Grease filling in motor bearings, actuators, removal of old grease and filling of new grease periodically as well as during any

maintenance activity.

21. HT/ LT Cables dressing, termination, connection, disconnection, termination, glanding and jointing. Strengthening of

existing cable trays or replacement of damaged cable trays if required for O&M mentioned above.

22. Sealing of bus ducts, cable entries, penal holes, panel/ cabinet doors, JB covers for preventing water and rodent ingress as

per requirement.

23. Servicing and testing of battery and cleaning of battery charger. Submission of test reports.

24. Repair/ replacement of insulators, links, nuts & bolts, electrical components & cable connections etc. of HT & LT side of dry

and oil type transformer cubicle.

25. Measuring, improvement monitoring and recording of IR & PI value of transformer.

26. Assistance in checking of interlock & protection circuit of transformer and electrical equipment.

27. Calibration of WTI of transformers/electrical equipment and report submission.

28. Collection of transformer oil samples for DGA.

29. Replacement of transformer oils, separate storing and filtering of used oil for future use and filtration of oil in transformers.

30. Meggering and other complete test of motors/ transformers under the guidance of Owner’s EIC and record maintenance.

31. Maintenance of Lifts, Sky climber, EOT cranes, Electric Hoists, Electric Chain pulley blocks of complete power plant.

32. Assistance for in situ dynamic balancing of electrical rotary equipment.

33. Fabrication of shims for alignment, preparation of Felt/ Cork/ Mica/ Bakelite and other gaskets from sheet, fabrication of

small items for maintenance aid.

34. Heating/ cutting of fastener/ bearing/ coupling whenever required during the maintenance.

35. Touch up and decorative painting of equipment. Phase/ direction of rotation marking, Nomenclature of Breaker,

Transformer, Control Panel, isolator etc.

36. Repairing of Electrical Panel doors with necessary material etc.

37. Cleaning of cable trench and providing patch work for fire stop coatings.

38. Arranging Temporary connection and disconnection of power supplies, illumination as required for maintenance and testing

work within Plant.




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39. Arranging & providing temporary/ permanent/ working electrical supply & connections as and when required for total O&M

activities of the plant.

40. Assisting in inventory management to Owner’s EIC.

41. Un packing, unloading/ Loading of equipment/ component on return/ sending for outside repairing/ development purpose.

42. Lifting & Shifting of Electrical equipment as per requirement.

43. Interplant communication system (PA system) Maintenance in all Plant Area. EPABX communication system Inclusive of

AHP & CHP installations.

44. All equipment installations inside & outside the plant boundary related to 11KV step up, step down and LT supply for River

water intake system.

45. All Temporay halogen fittings required for regular/shutdown jobs needs to be arranged including cables, industrial tops etc.

in scope of contractor.

46. All types of LT cable aluminum and copper Lugs and termination kits in scope of contractor.

47. Segregating and removing the scraps from each site after completion of work to ensure good housekeeping. Shifting of

waste oil drums and scraps material to scrap yard.

48. Working under guidance of OEM/ Expert/ testing agency called by Owner for any condition monitoring, defect rectification,

overhauling of transformer etc. Contractor shall provide assistance by providing skilled/ unskilled manpower.

49. Contractor shall provide assistance in site testing/ electrical laboratory work.

50. Pre-monsoon maintenance: Contractor has to carry out pre monsoon maintenance such as checking the sealing of all

outdoor equipment, junction boxes, switch boards, cutting of tree branches near overhead lines, ensuring readiness of all

dewatering pumps etc. Consumables required like tarpaulin, plastic, silicon sealant, aluminum tapes, glass putty etc., for

Monsoon protection are in scope of contractor.

51. Any activities associated with the scope not mentioned but requires for successful completion of the job is within the


52. INDICATIVE WORK FOR 220 KV SWITCHYARD ( VSLP & GSS END) AND CONTROL ROOM

52.1 The scope of work starts from Generator HV bushing to 220 kV transmission line gantries including gantries and line

equipment erected within switch yard. 220 kV Transmission lines outside plant boundaries are under the scope of

work.

52.2 Keeping control & relay panels in the control room, switch yard equipment/ installations, control cubicles for circuit

breakers & isolators neat and clean on regular basis. Cleaning of equipment/ installations requiring shutdown/ power

blocking shall have to be planned in consultation with Owner’s EIC.

52.3 Maintaining lighting in switchyard, control/ relay panels, control room, battery room, engineers’ room etc. to

maintain proper illumination level in entire area. All lighting materials required shall be supplied by Owner.

52.4 Checking the tightness of all fixing bolts & nuts, Jumpers, CVTs, CTs, Bus bars, Lightning arresters, Wave traps,

Coupling Capacitors, Connectors, Corona rings, coupling clamp bolts, spacers, earth connection(s), lock nuts etc. on

regular basis and maintaining records.

52.5 Tightness checking of all PT, CT, breaker, isolator control terminals/ clamps on regular basis and maintaining records.

52.6 Checking of all indication lamps, switchgear items, and various instrument meters etc. of system under scope and

replacement/ repair/ rectification of faulty ones immediately.

52.7 Checking of any glow, heating on the power lines, surge connector in Lightning Arrestors and switchyard and all

outdoor electrical equipment with bare connections with infra-red camera/ thermography and taking remedial

actions under the guidance of Owner’s EIC.

52.8 Cleaning of all porcelain insulators, Inspection for any cracks and chip-off and carrying out repairs wherever required.

52.9 Cleaning of contacts and applying grease or jelly, adjustments of moving mechanism/ arms for proper closing and

opening operations for the Isolators and application of grease/ jelly as per requirement.

52.10 Assisting Transformer oil filtration as per OEM recommendation and submitting records.

52.11 Replacement/ shifting of switch yard equipment in case of any failures and emergencies.

52.12 Identification of probable water ingress points of all field mounted instruments/ panels and necessary rectification

measures in consultation with Owner’s EIC.

52.13 Conducting all routine maintenance and tests (kit to be provided by Owner) on electrical equipment under the

guidance of Owner’s EIC.

52.14 Assistance in testing of the breakers, isolators, LAs, CTs, CVTs, etc. whenever required and report submission thereof.

52.15 Maintenance of earth pit and measurement of earthing resistance at all switchyard points at least twice a year and

submitting report thereof. Water pouring if, required.

52.16 Cleaning of all the control/ Relay panels, Protection panels, Bay Marshalling Kiosk, Centralizing cubicles, PLCC panels,




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Isolators/ Earth switch control box, etc.

52.17 Replacement of faulty components such as Relays, Switches, LED indication, Window lamps, meters, TBs, etc.

52.18 Checking & maintaining interlocking mechanism among the breakers, Isolators, Earth switches under the guidance of

Owner’s EIC.

52.19 Vegetation growth removal from Switchyard/transformer yard (chemical to be provided by Owner).

53. GENERATOR AND EXCITER :

53.1 Generator Stator/Rotor Dry out in case of IR Value improvement.

53.2 Cleaning of the brush gear and holders. Cleaning / polishing of the slip ring.

53.3 Removal of cables from the brush gear.

53.4 Trouble shooting, defect rectification and Maintenance of Generator and its associated system including Generator

cooler Room, AVR, AC /DC bus duct, IPBD bus duct & Pressurization unit, LAPT, NGT Cubicle etc.

53.5 All works related to Excitation system which includes regular maintenance, trouble shooting, Spare part replacement,

Testing, panel cleaning & sealing etc.

53.6 Monitoring of Generator Parameters like Excitation Voltage, Current, Generator terminal voltage and Current,

Winding, Air and core temperatures

54. TRANSFORMERS - GTS, STS, UATS:

54.1 Radiator, Cooling fan: Attending all sorts of faults/ breakdown developed in cooling system. Complete overhauling,

Bearing replacement, contactor replacement, re-fitting to transformer, necessary circuit checking, cable changing

work if, required and local-remote operation checking of cooling fan & oil pump and changing of motors or/and fans

if required.

54.2 Cleaning of bushings. Assistance for Tan Delta and Capacitance test on HV bushings and record keeping.

54.3 Assistance for Tan Delta and Capacitance test on windings. Excitation current test on windings and record

maintenance.

54.4 Assistance for carrying out Ratio test, Magnetic balance test, Short circuit test, DC winding resistance test, IR of core,

IR of HV bushing, IR of HV bushing test taps, as per requirement and reports submission.

54.5 IR value improvement through heating process whenever required.

54.6 Tap Changer - circuit checking and all other job to activate OLTC through local- remote operation under the guidance

of Owner’s EIC.

54.7 Silica Gel re-activation & replacement and transformer breather checking and repair if required.

54.8 IR value & PI checking of transformer both HV & LV sides to be done including opening of dropper & jumper and

connecting the same on availability on shut down minimum once in six months. Report submission thereof.

54.9 Monitoring and recording oil level in conservator, tap changer.

54.10 Checking of Conservator, Buchholz relay of transformer & OLTC, PRD, MOG, SPR, WTI, OTI, oil surge relay & oil level

indicator and their replacement, if required under the guidance of Owner’s EIC. Checking healthiness of NGR.

54.11 Tightness checking of terminals if required on offline and report submission.

54.12 Checking and calibration of winding temperature & oil temperature indicators, start stop of cooling fans & pumps, oil

level in MOG, atmospheric sealing of conservators and PRVs. submission of report thereof.

54.13 Removal and reconnection of TRF bushing jumpers, LV side links as and when required.

54.14 Up keeping of various cubicles like marshalling box, junction box and OLTC box.

54.15 Regular cleaning of transformer bushing, insulator and bushing oil level checking. Arresting of oil leakage in bushing &

flanges of transformer including inert gas filling if required.

54.16 Replacement of damaged/ burnt connector and hardware.

54.17 Assistance for Oil BDV test, Oil dissolved gas analysis, simulation tests for all protections etc.

54.18 Cleaning of Transformer oil drain pit associated pipe lines and Drain oil tank

54.19 OLTC routine maintenance and assistance during overhaul under expert supervision

54.20 Cleaning/ Replacement of Transformer area Ballast.

54.21 Cleaning of Transformer oil drain pit.

54.22 Assistance for complete stability test of all GTs, STs, UTs, aux transformers and Bus-duct for REF, Differential, SEF &

other relay setting by injecting voltage on HV side and short circuiting in LV side. Secondary injection for relays

testing.

55. BREAKERS:




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55.1 Cleaning of ceramic insulators, control panel. Replacement of insulator if, required.

55.2 Monitoring and recording of gas pressure and air pressure and filling of gas if required.

55.3 Maintaining compressor healthiness for adequate air pressure. All routine checks for trouble free operation of

breakers.

55.4 Checking and replacement of air and gas pressure gauge meter, if required.

55.5 Up keeping of breaker Marshalling Kiosk includes replacement of defective/ damaged one along with cable

dismantling and re-connecting the same.

55.6 Replacement of local limit switch, contactor, overload relay, belt, pinion, gear and any type of spares.

55.7 Checking of local and remote operation circuit, annunciation circuit and necessary rectification thereof.

55.8 Checking and replacement of trip coil and closing coil of breaker, if required.

55.9 Checking and replacement of terminal block and junction box including dismantling of cable connection and re-

connection the same. Replacement of control wire if, needed.

55.10 Lubrication checking of mechanism of breaker and application of the same, wherever required.

55.11 Measure closing & tripping timings and contact resistance.

55.12 Assistance in confirming healthiness of air & SF6 pressure alarm & lock out circuits by simulation.

55.13 Measure & record the dew point of SF6 gas.

55.14 Scheduled maintenance of DCRM, close and open timings measurements and report submission etc.

56. ISOLATORS:

56.1 Applying lubricants in gearbox & isolator blade after proper cleaning with cleaning agent.

56.2 Changing of isolator blade along with proper alignment checking & fitting in jaw (fixed contact) after dismantling of

defective blade. Checking mechanical/ electrical operation and indication. Rectification of remote/ local circuit

troubles.

56.3 Replacement of damaged gear box in isolator main box, proper lubricating and checking of electrical/ mechanical

operation and indication.

56.4 Assistance for replacement of defective auxiliary contact. Checking of isolator electrical (remote and local)/

mechanical operation and interlock checking.

56.5 Assistance for replacement of defective fixed contact, ensuring proper alignment and electrical/ mechanical

operation of isolator.

56.6 Cleaning of isolator control panel and MOM box. Tightness checking of power and control cables.

56.7 Measuring & recording contact resistance of isolator with micro ohm meter.

57. CURRENT TRANSFORMERS & POTENTIAL TRANSFORMERS:

57.1 Checking oil level and quality and record submission. Cleaning accumulated dust.

57.2 Up-keeping of CT junction box, PT junction box including replacement of junction box, if required.

57.3 TB of junction box replacement along with cable disconnection & termination if required. & tightness checking.

58. EARTH PITS AND LIGHTENING ARRESTORS:

58.1 Periodical checking of earth pit values and recording. Maintaining earth resistance value as per standards.

58.2 Improvement of earth resistance values if required.

58.3 Routine maintenance of earth pits by watering etc.

58.4 Cleaning accumulated dust.

58.5 Periodic Checking of leakage currents of LAs, maintenance of their leakage meters & counters. Ensuring it within

green band.

58.6 Checking of lightening protections, continuity and earth resistance.

58.7 Checking & maintaining the lightening protection cover to Switchyard & TG Hall/ Transformer area & Chimney.

59. EQUIPMENT CONNECTOR, PIPE BUS CONNECTOR & HARDWARE, PIPE BUS AND SPACER:

Replacement of all damaged/ burnt connector/ hardware/ drop down jumpers of equipment & pipe bus based on report of

thermography and control room log book report. Cutting, bending, dismantling of Al pipe bus and connection of the same/

new pipe bus, checking & tightening of nuts & bolts of connector, fabrication of hole, grinding if required. Replacement of

all hardware as per the report.

60. BUS DUCTS:

External cleaning of complete bus duct. Internal checking, cleaning and tightening of insulators. Replacement of defective/




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faulty part wherever required. Opening, cleaning and re-fixing of rubber bellows. Wrapping the rubber bellows by

polythene. Drying out of bus duct, where ever required by hot air blowing. ) Checking and cleaning of all epoxy bushings at

phase and neutral side and seal off bushings. Disconnection and connections of various links, wherever required.

Replacement of flexible links, if felt necessary.

61. RELAY AND CONTROL PANELS IN 220 KV SWITCHYARD CONTROL ROOMS & PANELS ASSOCIATED WITH GTS, STS, UATS :

61.1 Assistance for trouble shooting in control circuits and modification.

61.2 Checking, replacement and restoration of any faulty bulbs, LEDs, holder, and complete circuitry of indication &

annunciation panels.

61.3 Up keeping, inside and outside cleaning of 220 kV control/ relay panels and outside (both front & back) of the panels

including AC & DC distribution board.

61.4 Attending illumination troubles & bulb replacement inside the panel cubicle.

62. LIGHTING:

Maintenance of MLDB. Changing of HPMV/ HPSV/ Vapor lamp, tube, choke, starters igniters, retrofitting of JB, restoring of

power supply, checking of circuitry problem, cable changing if required, replacement of complete set, proper fitting of

illumination set using clamp & bolt in the Switch yard & transformer yard including high mast light and inside the panel of

switch yard control panel and in the control room, battery room, AC room, engineers’ hall, toilets and other areas related to

switchyard. Maintenance of auto switching of lighting system in Plant.

63. CLEANING:

Cleaning of bus support insulators, CT, PT & breaker insulators, transformer bushings, lightening arrestor to prevent

flashover by surface tracking, cleaning of equipment box. General Up keeping of switchyard and transformer yard. Cleaning

of Charger Room, Battery Room, Engineers Hall and Control Room of Switchyard.

64. BREAKDOWN MAINTENANCE:

64.1 Replacement/ Repair/ Rectification of damaged connectors, jumpers, joints, dropdown conductors, suspension

hardware, insulators (suspension, post), panel (field & control room) spares, transformer cooling fans etc. based on

results of thermography survey and routine visual inspection of switchyard equipment/ installations.

64.2 Attending minor oil leakages from transformers, CTs, PTs, bushings of transformers etc. excluding supply of

appropriate grade sealing materials. Sealing Material shall be in Owner’s scope of supply.

64.3 Replacement of failed/ damaged equipment e.g. CTs, PTs, LAs, bushings, circuit breakers, CVT, coupling, capacitor,

wave trap etc. of the entire system under scope of this Contract. All relevant tests will be performed before

commissioning of the replaced equipment.

65. SCRAP REMOVAL FROM SWITCHYARD:

65.1 Removal of existing scraps lying here & there in the switchyard area and shifting to the designated scrap yard within

plant premises.

65.2 Maintaining entire area under scope aesthetically, as per instruction of the EIC.

66. OIL FILTRATION:

Assistance for filtration of insulating oil of all the transformers in service on availability of shutdown, as per

recommendations of the oil test results or if desired by Owner’s EIC. Owner shall provide oil filtration machine of adequate

rating as and when required. It’s shifting/ placement near the transformer, arrangement of oil storage tanks will be under

the scope of the Contractor. Power supply arrangement, operation, sample collection before and after filtration for testing

shall be in Contractor’s scope. Filtration shall be continued till satisfactory results/ parameters of oil are achieved.

67. CABLE LAYING AND TERMINATION:

Disconnection of old/ damaged cables from terminal & removal of old/ damaged cables & dragging to disposal area.

Replacement of all damaged power cables is in the scope of Contractor. Replacement of damaged/ laying of all new control

cable, signal cables & lighting cables are included in the scope.

I. INDICATIVE WORK FOR HT/ LT SWITCHGEAR:




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1. Cleaning of the switchgear panels/ bus ducts, fault diagnosis and rectification, checking of module alignment, tightness

checking of power and control cables. Lubrication of moving parts. Replacement of defective components. Assistance for

checking and Testing & calibration of Protection relays, meters, breaker closing and opening timing. Cleaning of Bus ducts

and replacement of insulators if required. Maintenance of meters, indication lamps, transducers.

2. Cleaning, tightening, greasing, oil topping up, control circuit checking of LT modules/ LT breakers.

3. Checking of contactor/ kit/ fuse, checking of overload relay, control circuit indication lamp, interlocking, protection system.

Checking/ tightening of connections. Submitting record of checking activities.

4. Repair/ replacement of indicating lamp, lamp cover, push button, rotary switches, fuses, fuse base, electrical & electronic

components and limit switches in local and MCC panels.

5. Changing/ servicing of failed/ faulty SFU/ Power contactor/ Overload relay/ PT/ CT of 415 V LT Modules.

6. Changing/ Servicing of Control switch/ Cam switch/ Timer/ Aux. Contactor/ MCB/ Push button/ Pilot lamp/ Fuse base of LT

Switch gear.

7. Repair/ replacement of failed bus bars, bushing, CT, PT, bus bar cable chamber, breaker chamber, space heater in LT

switchgears.

8. Repair/ servicing/ replacement of failed/ faulty contacts & arc chutes, closing coil & its mechanism, tripping coil & its

mechanism, spring charging system and operating system of LT breakers.

9. Assistance for (Timing, CRM, Hi pot) Close-trip time measurement of all breakers, Contact resistance measurement of all

breakers by applying (V/I) micro-ohm meter, Hi-pot for checking condition of insulators (replace faulty insulator if leakage

current is more than specified value), Insulator tightness, Primary injection for relays & control circuit, Space heaters,

thermostat, control scheme etc. Maintaining healthiness of spring charging mechanism. All routine checks for trouble free

operation of breakers.

J. INDICATIVE WORK FOR UPS, BATTERY BANK, CHARGER AND DC SYSTEM:

Cleaning of battery room, cleaning of battery terminals, replacement of battery terminal, daily measurement of specific

gravity/ voltage of rotating pilot cells, monthly measurement of specific gravity/ voltage of complete battery and topping up

DM water/ acid to cell, if required. Cleaning of inter cell, connectors and terminals. Repair/ Replacement of failed/ faulty

batteries, inter cell connector, inter row connector, vent plug. Application of battery terminal coating and petroleum

jelly. Tightness checking of inter cell connectors/ terminals/ cables with insulating spanner and gloves, shifting of batteries if

required. Cleaning of charger panels, attending tightness checking of power and control components, inspection/ checking

of control circuit & rectification of troubles, Calibration and checking of PCBs and limiters, Routine checking of float

charging of batteries, boost charging of batteries whenever required. Trickle charge current monitoring on weekly basis.

Assistance for capacity test as and when required, as per OEM recommendation or during annual shutdown.

Batteries and Battery Chargers - Measurement of Battery Cell Voltage, specific Gravity, DM water level, Cell Temperature,

appearance of gassing – weekly. Conducting of the Capacity Test on Batteries once in a year to identify and replace the

defective ones so that the reliability of the batteries and chargers are established for reliable operation.

K. INDICATIVE WORK FOR MOTORS:

1. Replacement/ shifting of HT/ LT motor as per work requirement.

2. Removing of cable connection, opening of end cover of HT motor for inspection of bearing, replacement of HT motor

bearing and assembly. Measuring and achieving improvement of IR value.

3. Dismantling of LT motor for checking of stator and rotor and re-assembly. Replacement of bearings and bearing housing as

required. Repair/ replacement of LT motor cable glands, terminal block and re-lugging as per requirement. Repair/

replacement of LT motor temperature gauge, space heater, Earthing connection.

4. Assistance for checking of interlock & protection circuit of HT/ LT motor.

5. Assistance for complete overhauling of LT motor/HT motor

L. MAINTENANCE WORKS ON HT/ LT MOTOR:

1. External cleaning of motor by air or suitable agent thoroughly.

2. Opening of fan cover and checking of fan tightness.

3. Cleaning of motor terminal box.

4. Cleaning of cooling fan, fan cover & ducts, motor cooler.

5. Sealing of terminal box with suitable gasket, Nut & bolts with washer.

6. Checking & tightening of earthing.

7. Tightening of cable & motor terminals including power, space heater, RTD, BTD etc.

8. Checking & tightening of proper glanding of cables.




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9. Greasing & lubrication of bearings.

10. Measuring of IR value.

M. PREVENTIVE MAINTENANCE OF HT/ LT MOTORS

1. Visual Checking.

2. Checking of noise and vibration.

3. Greasing and lubricating of bearings.

N. INDICATIVE WORK FOR CABLING:

1. Removal, reconnection & tightening of connection of cables at motor & breaker/ modules end as when needed, Checking/

tightening of connection, burnt cable/ lugs/ socket to be replaced, replacement of cable (making joint box), laying of cable,

crimping of socket/ lugs , checking of IR value.

2. Checking/ testing of cables and attending to cable faults; replacement of cables (except power cables) with lugs/ sockets/

termination kits etc. Removal of faulty cables and shifting to stores.

3. Connection/ disconnection of Power and Control cables on panel/ equipment end.

4. Cleaning of cable galleries and trays. Dewatering of cable trenches.

5. Replacement of control cables and power cables.

6. Dressing of cables by cable tie or clamps.

7. Continuity, IR, PI, Hi pot (DC Voltage) may be required to identify cable fault, Identification of location of fault with the help

of cable fault locator and live line detector)

O. INDICATIVE WORK FOR LIGHTING:

1. Cleaning of light fitting, ceiling fans exhaust fans.

2. Replacement of lighting accessories including aviation lamps, Fan accessories.

3. Fault rectification in the lighting circuits.

4. Cleaning and fault rectification in MLDB, SLDB and replacement of spares.

5. Periodical checking and cleaning of all lighting transformers.

6. Maintenance of welding sockets, 24V AC Supply transformers & sockets 230 VAC power sockets.

7. Checking the Auto operation of street lighting, chimney, cooling tower, DC lighting.

8. Switching on and switching off the lights daily as per schedule and wherever required.

9. Attending faults & replacement of fittings including those in Cooling towers, Chimneys, Tower lighting and Security watch

towers.

10. Arranging temporary supplies and temporary lighting whenever & wherever required.

11. Shifting of ladder near the light fitting and pole maintaining safety.

12. Repair/ replacement/ new installation of lamp fittings, receptacles.

13. Repair/ replacement of lamps, igniters, ballast, capacitor, starter, control gear box, lamp holders well glass, wire guard,

ceiling rose, lighting cable, lighting switch & socket, igniter, tube light cover, wire, fuse, holders, covering glass etc.

14. Laying/ fixing of casing capping, GI conduit pipe & installation/ fixing of switch and socket in main

switch board. Replacement and fixing of main switch and MCB. Maintenance of Chimney aviation lightings and chimney elevators and record keeping.

P. INDICATIVE WORK FOR GENERATOR EXCITER BRUSH GEAR MAINTENANCE

1. Removal of cables from the brush gear. Removal of left and right side of the brush gears.

2. Cleaning of the brush gear and holders. Cleaning/ polishing of the slip ring.

3. Refitting of the brush gear and cables. Refitting of other accessories.

Q. INDICATIVE WORK FOR ESP:

1. Cleaning of internal/ outer area of control panels.

2. Checking/ replacement of hopper & insulator heater & associated wiring & heat resistant cable.

3. Inspection, cleaning, checking, tightening and testing of each Electronic control panel and associated control and power

cable.

4. Checking and replacement of HV screened feedback cables, Electrical and Electronic components where ever required.

5. Checking of IR value of every field and checking of all insulator heaters and hopper heaters and replacement if required.

6. Checking of internal insulators and piping of HV Terminals and replacement if required.

7. Maintaining of rapping solenoids.




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8. Cleaning of outer surface of control panels.

9. Checking, up keeping, cleaning and tightening and replacement of defective item if any of insulator heaters and hopper

heaters.

10. Conducting open circuit, short circuit and air load test if, required.

R. INDICATIVE WORK FOR TRANSFORMER:

1. Servicing of HT Transformer

1.1 Complete external cleaning of H.T. Transformers consisting of main tank body, HV/LV turrets, siphon filters, headers,

radiators, Conservators, complete piping and cooler control panels and earth resistance panels etc.

1.2 Dismantling and reassembling of cooling fan with motor including disconnection and reconnection.

1.3 Inspection, checking and tightness of all gasket joints and bushings of HT/ LT sides and to attend oil leakage from any

part of transformer either by replacing the gasket or by sealing the leakage point. Topping up of oil and replacement

of silica gel. To and fro transportation of oil drums, oil filter machine from storage area to place of working and

assistance, in oil filtration where ever required. The transformer oil will be provided by Owner. BDV testing of all

transformer oils will be in the scope of Contractor.

2. SERVICING OF LT TRANSFORMER/ ESP HVR.

2.1 Complete external cleaning of transformers consisting of main tank body, HV/ LV turrets, headers, radiators,

conservators, complete piping, Marshalling kiosks, C&R panels, Remote indication panels, local panels etc.

2.2 Disconnection and termination of HT/ LT cables wherever required including tightness checking of terminals.

2.3 Opening and re-fitment of HT/ LT cable boxes, internal cleaning of cable boxes and its single coat painting.

2.4 Draining of oil from the existing transformer.

2.5 Removal of sludge, if any from the transformer.

2.6 Inspection, checking and tightness of all gasket joints and bushings of HT/ LT sides and to attend oil leakage from any

part of transformer either by replacing the gasket or by sealing the leakage point.

2.7 Topping up of oil and replacement of silica gel. To and fro transportation of oil drums, oil filter machine from storage

area to place of working and assistance, in oil filtration where ever required. The transformer oil will be provided by

Owner.

2.8 Filtration of oil till the oil reaches a desired BDV value. Filtration Machine & Hose Pipe will be provided by Owner,

shifting will be done by the Contractor.

2.9 Changing/ drying of silica gel if necessary.

2.10 Cleaning and checking of transformer, bushings and marshalling box.

2.11 Complete external cleaning of fan and motors. Dismantling and reassembly of cooling fan motors, cleaning of shaft

and bearings, replacement of the bearings etc. Single coat painting of fan, motor body and its frame by colors

supplied.

2.12 Measurement of Earth resistance of the earth pits. Testing & commissioning of transformer.

2.13 Painting of identification boards of transformers with frame and letter writing for identification shall be done by

approved make and color of enamel paint. Identification includes name of transformer, capacity, and voltage ratio ad

symbolic connection diagram as per existing ones.

3. PREVENTIVE MAINTENANCE OF TRANSFORMER

Cleaning, arresting of oil leakage,checking and replacement of silica gel, checking of Conservators,

Bucholtz Relay, Tightness checking of terminals if required on offline.

S. INDICATIVE WORK FOR ACTUATORS

1. Removal of cables.

2. Dismantling of defecting actuator from base/ installing new or repaired one.

3. Shifting of actuator to & fro shed for servicing.

4. Servicing of actuator, cleaning, greasing, oil topping.

5. Limit/ torque switch checking, replacement and adjustment. Checking of cable glands.

6. Tightness checking of cables. Replacement of hand wheels.

7. Servicing of actuator gearbox and base. Sealing of covers.

8. Replacement of defective actuator motor. Replacement of oil seal.

9. Rectification of actuator modules. Reconnection of cables.

10. Interlock checking and checking of electrical operation from local and remote under the guidance of Owner’s EIC.




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T. INDICATIVE WORK FOR WB/ LRSB/ APH SOOT BLOWER

Cleaning, servicing & replacement of motors, JB, PB, limit switch etc. and commissioning.

U. INDICATIVE WORK FOR EXHAUST FANS AND ELECTRICAL HOISTS

1. Removal of all connections. Dismantling/replacement of the fan & motor.

2. Disassembling & servicing of fan & motor. Rectification of defect, if any.

3. Reassembling of the equipment.

4. Fixing at the location. Fixing of all connections.

5. Trial run & rectification of defects, if any.

V. SCOPE OF WORK C & I

1. Round the clock C&I maintenance of all area of power plant equipment’s.

2. All routine/ preventive/ predictive/ breakdown C&I maintenance under the guidance of Owner’s EIC.

3. Implementing SOP (Field operations), SMPs and PM check list compliance.

4. Routine, Preventive, Predictive and Breakdown maintenance of all C&I equipment & systems like; Control Room operating

stations, Control systems, Sequence Event Recorders, Control Panels, ETS,DEH, DCS & PLC equipment (excluding DCS

software), Burner management system, C&I laboratory and Chemical Laboratory equipment, Field instruments such as

Indicators, Turbo Supervisory Instruments, Pressure gauges, Temperature gauges, Flow transmitters, pressure transmitters,

temperature transmitters, Conductivity transmitters, DP transmitters, Level transmitters, Position transmitters, RTDs,

Thermocouple, Pressure switches, Level switches, DP switches, limit switches, Temperature switches, flow switches, all

pneumatics, solenoid valves, air valves, HP/ LP Bypass systems, on-line analyzers, analytical instruments, Hydra step, SWAS

instruments, Flue gas analyzer, CEMS, SOX+NOX analyzer, AAQMS Junction boxes, Pneumatic control valves, power

cylinders, all types of Motorized, Pneumatic and Hydraulic actuators, Instrumentation air piping, Impulse piping Earthing

system etc. under the guidance of Owner’s EIC.

5. Dismantling, cleaning, mounting, repair, overhauling, replacement of damaged components, calibration as per schedule,

mounting and checking the operating condition while on site and in the laboratory for all the Control and Instrumentation

equipment and Field Instruments under the guidance of Owner’s EIC/ Engineers.

6. Round the clock C&I shift Engineers & Technicians for handling all C&I activities for Operation support as per plant

requirements as mentioned in Annexure-3.

7. Checking/ inspecting the field instruments, panels, actuators, transmitters, impulse lines etc. daily/ periodically and

reporting any damage/ misalignment/ mal-operation/ abnormal conditions to Owner’s EIC/ Engineers.

8. Interlock & Protections checking under the guidance of Owner’s EIC, Loop testing (starting from field end till the field

termination assembly/ panel), continuity checking, cable, impulse line-tracing, sequence of operation checking, are to be

carried out at the discretion/ guidance/ assistance of Owner’s EIC/ Engineers.

9. Running and Shutdown maintenance work.

10. Routine checking of control power supply, main power supply, connection tightness etc. for all the electrical actuators,

impulse line tightness checking/ leakage detection & arresting for all the pneumatic & hydraulic actuators.

11. Routine & breakdown maintenance of Air filter lubricator, Impulse lines, applying lubricants, cleaning filters, removing

chokes in the impulse line/ filters, plugging leaks.

12. Removal of indicators, transmitters, valves and other instruments, equipment, monitors, transporting them to stores,

laboratory and vice versa for servicing, repair and re-fixing them in their appropriate places, checking of cables and

terminations as and when required.

13. Re-commissioning activities are to be carried out at the discretion/ guidance/ assistance of Owner Engineers.

14. Transferring materials from central store to C&I dept. store.

15. Cable testing as per the requirement.

16. Additions/ deletions/ modification works involved in the cable route, cable tray, impulse lines, instruments, instrument

airline, panel cutouts etc. as and when required as per direction of Owner Engineers.

17. Carry out all calibration works in the laboratory or if possible in the field itself using the Master laboratory/ laboratory

equipment provided by Owner. All field instruments shall be checked for calibration errors.

18. Arranging for temporary instrument air supply line, from the point decided by Owner Engineers for site calibration,

maintenance, repair works execution.

19. Routine/ preventive maintenance in the C&I laboratory such as charging/ replacing batteries for electronic equipment,

minor rectification/ repair jobs, cleaning of laboratory.

20. All maintenance/ repair/ overhauling etc. for the pneumatic actuators.




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21. The contractor shall ensure good maintenance housekeeping at the work place to keep the area clean & tidy.

22. Routine/ daily cleaning/ removal of oil strains, dust, rust from panels, actuators, junction boxes, field transmission

assemblies, flame scanners, field instruments/ mounting/ supports, other equipment etc.

23. Cleaning of DCS & PLC Control desks, DCS Engineering Stations, All I/O Panels, Test laboratory equipment etc.

24. Cleaning of computers, printers, mouse etc. involved in plant automation.

25. Cleaning of worksite after completion of work and disposal of scrap to the designated place inside plant boundary.

26. Painting and repairing of damaged, dismantled, and rusted portions etc. in field instrumentation, JB,s and panels.

27. Checking of Tags condition in field instruments & rectification of the same.

28. Preparing panel cutouts for installing any instruments, mounting brackets for any field mounted instruments, siphons

making for impulse lines and work for mounting of new field instruments.

29. Laying/ Removing of Power and control cables as and when any modification/ safety/ maintenance requirement jobs are

being done.

30. Assistance for AMCs of DCS, PLCs, SWAS Sensor calibration, CEMS, AAQMS, TSI (VMS) etc., C&I lab Master instruments

calibration, Analytical instruments, Weigh Bridges etc.

31. To assist during any specialized maintenance activities under guidance of OEM expert/ other consultants/ specialist agency.

32. Preparing safe scaffolding to work at heights. Filling the field log book for all local equipment/ system reading.

33. Preparation of maintenance history for all types of maintenance in Hard as well as Soft copy & daily/ weekly/ monthly

submission to Department Head-Owner.

34. Continuously contribute in achieving safety, health & environment objectives of site.

35. Co-ordinate with Main Plant Operation and Maintenance team.

36. Any other C&I maintenance related work assigned by Owner’s EIC/ Engineer. Whether mentioned here or not but, all the

work & activities necessary to sustain & perform C&I maintenance is included in the scope of work.

37. Calibration of all the measuring instruments, regulatory control valves, ON/OFF valves and Motorized actuators.

38. Monsoon Protections: Contractor has to carry out pre monsoon maintenance such as checking the sealing of all outdoor

equipment, junction boxes, switch boards, ensuring readiness of all dewatering pumps etc. Consumables required like

tarpaulin, plastic, silicon sealant, aluminium tapes, glass putty etc., for Monsoon protection are in scope of contractor.

39. Repairing for proper locking & hinge of Instrument panel doors. Junction Boxes etc.

40. Calibration & testing of all Control valves.

41. The contractor shall ensure that the manpower supplied for the O & M jobs shall have the required skill to perform the

Plant Jobs. If any manpower found not performing & not having adequate skill to perform the job then the same shall be

replaced immediately with new skilled manpower on the request of the VSLP EIC.

42. The Contractor shall prepare shift schedules & supervise all the workers attached to the O & M works. Any issues relating to

the workers, contractor can discuss with EIC & close the matter.

43. VSLP to be kept in loop on the changes or absentees related to the manpower.

44. The contractor to ensure round the clock availability of their stores for shift availability of required items under their scope.

45. Manpower Daily report to be send by contractor site in-charge/ HR to VSLP EIC/ EIC representative.

46. C&I Laboratory instruments repairing components are under contractor scope.

47. Maintenance and healthiness checking of all installed air dryers and auto drain valves.

48. C&I Manpower leave prior permission from EIC

49. Healthiness checking of all DCS & PLC control system earth pits, maintenance & recharge with salt solutions.

W. INDICATIVE WORK FOR ACTUATORS, CONTROL VALVES, ON/OFF VALVES:

1. Removal of cables.

2. Dismantling of defecting actuators, valves from base/ installing new or repaired one.

3. Shifting of actuator valves to & fro shed for servicing.

4. Servicing of actuator & valves, cleaning, greasing, oil topping.

5. Limit/ torque switch checking, replacement and adjustment. Checking of cable glands.

6. Tightness checking of cables. Replacement of hand wheels.

7. Servicing of actuator & Valves gearbox and base. Sealing of covers.

8. Replacement of defective actuator motor & valves. Replacement of oil seal.

9. Rectification of actuator modules, valves Solenoids, positioners, FB Tx. Reconnection of cables.

10. Interlock checking and checking of electrical operation from local and remote under the guidance of Owner’s EIC.

11. Calibration of all Control valves, Actuators as per schedule or as and when required.




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X. AREA OF WORK (BATTERY LIMITS):

The work area covers complete Owner power plant within boundary wall. The indicative (not exhaustive) list of main

systems/ equipment to be assisted for C&I maintenance is as under.

1. Plant Control Rooms and their installations like; DCS, PLCs, Panels, SCADA etc.

2. Starting from Paddle Feeder, CHP, LHP, complete boiler above Seal Trough, Fuel oil and Burner system, APH, Soot Blowing

system, Fans & ducting, complete ESP & Bag House with hoppers above ash vessel inlet valves, Chimney, Boiler tube

leakage detection system.

3. Turbine, DEH, Lube oil and EH oil system, Deaerator and Regenerative feed heating system, Gland sealing system, HP LP

Bypass system, Condensate & Feed Water system CCCW & OCCW system, Chemical Dosing system, Condenser Ball cleaning

system.

4. Generator & Exciter, Seal oil system, Stator Water Cooling system, Transformers, Switchyard.

5. Raw Water system, Pre Treatment Plant, Potable water system, CW and OCW system, Cooling towers, CW treatment plant,

Hypo generation system, DM plant, Boiler Make up water system, Effluent treatment plant, RO, UF, CPU, Sewage treatment

plant.

6. C&I Laboratory including Master Calibrators

7. Compressed Air system.

8. SWAS systems

9. Analyzers such as Oxygen, CO, CEMS and others in BTG area.

10. AAQMS (Ambient Air Quality Monitoring System)

11. Chemical laboratory, Coal laboratory.

12. Drum level TV, Hardwired alarm annunciation system

13. Fire Alarm systems.

14. Control valves

15. Motorized Actuators, ON/OFF Pneumatic valves

16. Sand feeding control System

17. Fabric Filter and all Dust Catchers purging control system

18. Repairing of faulty cards and equipment’s at C&I Lab.

Y. SCOPE OF OPERATION: Depending on Areas following are the Roles & Responsibilities of field operator

1. SCOPE OF BOILER FIELD OPERATOR RESPONSIBILITY

1.1 Relieving at the workplace and handing over company asset to reliever.

1.2 Going through logbook previous shift report

1.3 Reporting to Shift in-charge related Unit control desk engineer in CCR & will follow the instructions.

1.4 Taking round for assigned area thoroughly, will check Boiler Auxiliaries & Mountings and check sheet to be filled.

1.5 100% follow up of SOP and use of check list for handling the Shift Operations so that there should not be any incident

or failure due to non-compliance of SOP.

1.6 Monitoring coal, oil, water, instrument air, flue gas leakages & other sensitive operating parameters continuously.

1.7 Observing seal trough status and bottom ash quantity & unburnt coal in bottom ash.

1.8 Safe operation of Boiler Auxiliaries & Mountings.

1.9 Performing schedule healthiness checking of reliability and protective equipment- Auxiliary Boiler, DG Sets, Fire

Protection System, Emergency Oil Pumps

1.10 Closely monitoring & maintaining oil levels of the equipment check for any water traces;

1.11 Check oil cooler vents, sampling & drain out valves, their dummies so that there will be no possibility of loss of oil

spillages.

1.12 Inspection of equipment /system, timely observation & reporting of defects to ensure maximum plant availability;

Perform Registry of defects of equipment as on when happened.

1.13 Analyzing all shift activities and parameters and reporting the deviations, field audit observations.

1.14 Reporting critical condition of equipment which may lead to failure .

1.15 Doing soot blowing in self presence; should check operation of all soot blowers

1.16 Soot blowing parameters sheet.

1.17 Availability of oil guns and will take regular feedback.

1.18 Taking boiler bottom ash hydraulic gate trial.

1.19 Communication with Control Room Engineers for starting / stopping the equipment’s, changeover / trial run of

standby equipment as per Schedule

1.20 Communication with Control Room Engineers for Smooth Start up and shutdown.




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1.21 Taking drain temp.( audit) before shutdown & after light up.

1.22 Taking prompt and correct actions in case of emergencies, in consultation with Control room Engineers / Group Head.

1.23 Ensuring good house-keeping & safe working condition in the plant area; collect proof on housekeeping defects;

report on housekeeping defects.

1.24 Ensuring safety practices, as per the Company norms

1.25 Ensure Zero accident / safety of Man, Machine, and Equipment during operation through Job safety analysis of

critical work. Hot work, height works and confined space by maintaining proper PTW system and isolation system.

1.26 Coordination with maintenance depts. for isolating the plant equipment’s and handing over the same for

maintenance work after safety tagging, normalizing the same.

1.27 Ensuring compliance to environmental norms applicable to the plant

1.28 Supporting in preparation of Incident Report of any incident pertaining to critical plant equipment, human, IR, within

8 Hours.

1.29 Maintain (F-rod, soot blower retract handle, push button release key & other tools) at the appropriate place.

1.30 Bunker hammering and de-chocking

1.31 Taking charge of TG AND BOP area in case of requirement

2. SCOPE OF TURBINE FIELD OPERATOR RESPONSIBILITY

2.1 Taking relieving at the workplace and handing over company asset to reliever.

2.2 Going through logbook previous shift report.

2.3 Reporting to S/I, related Unit control desk engineer in CCR & will follow the instructions.

2.4 Taking round for assigned area thoroughly will check all Auxiliaries and check sheet to be filled.



2.6 Taking Turbine AC/ DC lube oil pump trial; ACW & Generator DLS filter flushing in daily routine.

2.7 Starting COLTC system in both pass daily.

2.8 Checking running & standby instrument air compressors, dryers, their parameters SOV operation & their passing,

leakages.

2.9 Monitoring oil, water, instrument air leakages & other sensitive operating parameters continuously.

2.10 Performing schedule healthiness checking of reliability and protective equipment- Auxiliary Boiler, DG Sets, Fire

Protection System, Emergency Oil Pumps Monitor & maintain oil levels of the equipment’s closely; check for any

water traces; check oil cooler vents, sampling & drain out valves, their dummies so that there will be no possibility of

loss of oil spillages.


Perform Registry of defects of equipment as on when happened.



2.14 Start, stop oil filtration machines- BFP, DEH etc.

2.15 Communication with Control Room Engineers for starting / stopping the equipment, changeover / trial run of standby

equipment as per Schedule

2.16 Recording HVAC parameters sheet at 12:00hrs & maintain the record book.

2.17 Monitoring operation of chiller system; air washers; AHU & their parameters in his area.

2.18 Communication with Control Room Engineers for Smooth Start up and Shut-down of Unit (Boiler, Turbine and

Generators and other Auxiliaries) as per standard guide lines.

2.19 Doing for drain temp, audit before shutdown & after light up.





2.23 Ensuring Zero accident / safety of Man, Machine, and Equipment during operation through Job safety analysis of



maintenance work after safety tagging, & normalizing the same.


2.26 Support in preparation of Incident Report of any incident pertaining to critical plant equipment, human, IR, within 8

Hours.




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2.27 Maintaining (F-rod, soot blower retract handle, push button release key & other tools) at the appropriate place.

2.28 Lighting on & off in his area.

2.29 Maintaining his log books, log sheets records & get signed from CCR engineer, also will maintain a shutdown defect

list.

2.30 Imparting training to new joiners and supervising, guiding and controlling junior staff

2.31 Bunker hammering and de-chocking in rainy season.

2.32 Taking charge of boiler and BOP area in case of requirement

3. SCOPE OF CWP PUMP HOUSE/FOPH HOUSE FIELD OPERATOR RESPONSIBILITY

3.1 Taking charge of boiler and BOP area in case of requirement

3.2 Scope of CWP PUMP HOUSE/FOPH HOUSE Field Operator Responsibility





3.7 Responsible for 100% follow up of SOP and use of check list for handling the Shift Operations

3.8 So that there should not be any incident or failure due to non-compliance of SOP.


3.10 Performing schedule healthiness checking of reliability and protective equipment- Auxiliary Boiler, Fire Protection

System

3.11 Checking status and availability of Auxiliary boiler, taking trial daily.

3.12 Operator will closely monitor LDO tanks oil levels, check for any water traces from LDO tank drain line; check pumps

suction filter vents, drain out valves so that there will be no possibility of loss of oil spillages

3.13 Inspection of equipment /system ,timely observation & reporting of defects to ensure maximum plant availability;

Perform Registry of defects of equipment as on when happened


3.15 Maintaining the Aux. steam inlet pressure, LDO heater oil outlet temperature; will closely monitor the operation of

steam traps.

3.16 Checking LDO - supply & unloading pump availability & healthiness.

3.17 Taking dip levels of LDO tanks in each shift and will maintain the record book.

3.18 Checking status of oil water separator and should run with approval from CCR.

3.19 Complete activities (in his scope) during, LDO tankers unloading.

3.20 Checking the working & cooling of Air conditioner in FOPH control room & PLC room in his shift.

3.21 Taking dip levels of LDO tanks in each shift and will maintain the record book.

3.22 Flushing the cooling water lines of all CWP.

3.23 Checking CWP hydraulic discharge valve panel, its pressure, oil level and for any leakages.

3.24 Checking Fore-bay level & its makeup, CT basin level and communicating with DM plant.

3.25 Checking running & standby CT fans, their Riser MOV's; availability & defects.


3.27 Liaison with Control Room Engineers for starting / stopping the equipment’s, changeover / trial run of standby

equipment as per Schedule


3.29 Ensuring good house-keeping & safe working condition in the plant area, collect proof on housekeeping defects,

report on housekeeping defects




3.32 Coordination with maintenance departments for isolating the plant equipment and handing over the same for




8 Hours.


3.36 Maintain his log books, log sheets records & get signed from CCR engineer; also will maintain a shutdown defect list.





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3.38 Maintaining (F-rod, push button release key & other tools) at the appropriate place.

4. SCOPE OF AHP/ESP FIELD OPERATOR RESPONSIBILITY

4.1 Taking relieving at the workplace and handing over company asset to reliever. ( listed in Annexure-1)






4.6 Checking Complete Bottom ash conveying system of all units - (SSC,Bottom ash quantity &,DC,CG,Flushing lines,

Bottom ash silo & maintaining level,Ash water pumps, Dredge pumps and its discharge, Mixing water pumps)

4.7 Ensuring & Co-coordinating Ash disposal from Fly ash and bottom ash silo so that level not exceeds beyond 70% any

time due to non-communication.

4.8 Checking the Ash water tank level and its makeup continuously.

4.9 Checking ESP of all units - (Lifting, Bypass valve operation & its Instrument air pressures, CERM, EERM, purging SOV's

and their operation, ESP trafo, Bag filter Dp, Purging pressure & interval time, Field current setting &spark rate )

4.10 Checking Complete Fly ash conveying system of all units - (Hopper heater, Insulator heater, Hopper levels, Dome

valves & seal air pressure, Conveying line & its air pressure, Fly ash silo level, Fly ash and wet ash unloading, Silo

blower & ESP blower, Conveying cycle time)

4.11 Ensuring Daily recording & reporting of Performance data of Compressors, Refrigerant Air Dryers, Pumps, removing

moisture from air receiver tanks.

4.12 Fly ash & wet ash unloading and maintaining silo levels.

4.13 Ensuring accuracy of data recorded and reported regarding disposed ash quantity into silos, ash pond. in the shift

4.14 Checking status and availability of ESP air washers; its effectiveness.


4.16 Checking of healthiness of level switches, interlocks, other protection switches & submit report on monthly basis.


perform Registry of defects of equipment as on when happened & inform to respective maintenance department.

4.18 Preparing daily scheduled reports (AHP reports, ash generation, energy meter reading, energy consumption, AHP

performance report) , maintain backup records & E-mail same to CCR and Seniors.

4.19 Closing defects other than priority defects in Fifteen Days

4.20 Analysing all shift activities and parameters and reporting the deviations, field audit observations.


4.22 Communication with Control Room Engineers for starting / stopping the equipment’s, changeover / trial run of

standby equipment as per Schedule








maintenance work after safety tagging, & normalizing the same.


4.29 Support in preparation of Incident Report of any incident pertaining to critical plant equipment, human, IR, within 8

Hours.

4.30 Maintain (F-rod, push button release key & other tools) at the appropriate place.


4.32 Maintain his log books, log sheets records & get signed from CCR engineer, also will maintain a shutdown defect list.

4.33 Imparting training to new joinees and supervising, guiding and controlling junior staff.

5. LIGNITE AND LIME HANDLING PLANT SHIFT IN-CHARGE / OPERATOR RESPONSIBILITY

5.1 Giving relieving at the workplace and handover company asset to reliever. Checking the available manpower in his

shift & their deployment at desired location and reporting of the deployment to authorities.

5.2 Going through logbook for previous shift report. Checking status & availability of all earth moving equipment’s ( Pay




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loader, Dozer-Fuel, Driver,) and reporting the status and requirements to Authorities

5.3 Taking actions to improve availability of Equipment. Running CHP as per SOP, with safe operating practices and to

meet shift objectives in prevailing condition.

5.4 Healthiness of conveyor belt, belt protection switches, ILMS separator, Ground hopper, Roller screens, Crusher, DE

system, work on released PTW's.

5.5 Ensuring Healthy condition of Coal Unloading system before arrival dumper; ensuring proper level of bunker.

Unloading dumper near ground hopper, ensuring availability of supporting Manpower & machineries at Ground

hopper.

5.6 Feed the coal from ground hopper according to scheduled feeding plan and maintain the bunker levels as per

instructions.

5.7 Proper coal blending by observation of source of coal fed and ensuring ratio of coals.

5.8 Checking status of both CHP streams and will attend the operational difficulties along with maintenance dept. & will

give clearance.

5.9 Co-ordinate with CCR or S/I for healthy condition of bunkers & running all the units smoothly without any

interruption of coal round the clock (especially in rainy season).

5.10 Coal stacking.

5.11 Segregating storage of coal with respect to source and grade of coal in coal yard, No of Incident of mixing of different

grade of coal

5.12 Physical inspection of CHP equipment for defects and reporting the defects in IFS system and mail, analyzing the

nature of pending defects and communicating the defects needs to attend in high priority to seniors.

5.13 In case of defects are pending from longer days, communicating warning mail to Team members by providing

consequence of not attending, attaching describing photographs .

5.14 Supporting maintenance team to attend the defect by providing safe isolation, within time period of maximum 30

minutes from the time of submission of isolation and describing nature of defects,

5.15 After completion of maintenance, check the quality of work, whether objective maintenance is fulfilled or not and

taken trial of equipment; will co- ordinate with maintenance team for PTW (isolation, normalization, PTW release,

close, Hot PTW, Cross PTW)

5.16 Preservation of coal by covering during rain & re-handling and quenching of coal in case of any fire etc. and ensuring

healthiness of coal yard sprinklers and water monitors, hydrant posts

5.17 Re-handling and quenching of coal in case of any fire etc. No of incident of coal burnt in heap is zero.

5.18 Monitoring and reporting the defects of coal yard sprinklers and water monitors, hydrant posts, in monsoon status of

tarpaulin and submitting reports once in a month.

5.19 Checking oil, water, coal powder leakages & other sensitive operating parameters.

5.20 Housekeeping planning & will instruct belt operators for housekeeping targets.

5.21 Reporting incident report wrt. Equipment break down, fire, accident during the shift.

5.22 Prepare reports (manpower, permit, defect, coal stock, equipment unavailable, vehicle status etc.)

5.23 Supervising settling pond sediment removal.

5.24 Ensuring CHP utilization to reduce Auxiliary Power Consumption.

5.25 Identifying safety near miss defects & follow safety rules in his responsible area.

5.26 Logging sequence of activity shift in log book

5.27 Preparing scheduled shift reports (utilization report, heap wise stock, consumption report).

5.28 Ensuring accuracy of data recorded and reported regarding Coal Hard Heap stocks & Coal fed.

5.29 Ensuring accuracy of data recorded and reported regarding Auxiliary Energy Consumption &

5.30 Handling Vehicle Utilization.

6. CHP PLC OPERATOR RESPONSIBILITY

6.1 Giving relieving at the workplace and handover company asset to reliever.

6.2 Checking the available manpower in his shift & their deployment at respective location.

6.3 Going through logbook for previous shift report.

6.4 Checking availability of, Payloader, Dozer-(Fuel, Driver), and reporting the status and requirements to Authorities

6.5 Taking actions to improve availability of Equipment

6.6 Ensuring CHP utilization to reduce Auxiliary Power Consumption.

6.7 Running CHP as per SOP, with safe operating practices and to meet shift objectives in prevailing condition.

6.8 PLC Operator will check current heap wise coal stock.

6.9 Checking healthiness of conveyor belt, belt protection switches, Fire detection switches, ILMS separator, Ground




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hopper, Roller screens, Crusher, blowdown pumps, DE system, work on released PTW's.

6.10 PLC Operator will check the status of CHP PLC and both CHP streams.

6.11 Feed the coal from ground hopper according to scheduled feeding plan and maintain the bunker levels as per orders.

6.12 Proper coal blending by observation of source of coal fed and ensuring ratio of coals.

6.13 Co-ordinate with CCR S/I for healthy condition of bunkers & running all the units smoothly without any interruption

of coal round the clock (especially in rainy season).

6.14 PLC operator will instruct to Belt Operators to monitor oil, water, coal powder leakages & other sensitive operating

parameters continuously.

6.15 Supporting maintenance team to attend the defect by providing safe isolation, within time period from the time of

submission of isolation and describing nature of defects, After completion of maintenance, check the quality of work,

whether objective maintenance is fulfilled or not and taken trial of equipment; will co- ordinate with maintenance

team for PTW (isolation, normalization, PTW release, close, Hot PTW, Cross PTW)

6.16 Preservation of coal by covering during rain & re-handling and quenching of coal in case of any fire etc. and ensuring

healthiness of coal yard sprinklers and water monitors, hydrant posts

6.17 Housekeeping planning & will instruct belt operators for housekeeping targets.

6.18 Reporting incident report wrt. Equipment break down, fire, accident during the shift.

6.19 Instructions to Belt Operators to be alert & report to Control room regarding defect and reporting the defects in IFS

system and mail; analyzing the nature of pending defects and communicating the defects needs to attend in high

priority to seniors.

6.20 Ensuring smooth & efficient running of CHP, improve CHP utilization factor, reduce Auxiliary power consumption,

maintain high feed-rate.

6.21 Co-ordinate with CCR S/I for healthy condition of bunkers & running all the units smoothly without any interruption

of coal round the clock (especially in rainy season).

6.22 Identifying safety near miss defects & follow safety rules in his responsible area.

6.23 PLC Operator, Belt operator will be responsible for lighting on & off in his area.

6.24 PLC operator will raise defects in IFS & inform to concert dept.

6.25 PLC operator will fill log book, log sheets & maintain the record; will prepare the scheduled reports.

6.26 Preparing scheduled shift reports (utilization report, heap wise stock, consumption report,).

6.27 Ensuring accuracy of data recorded and reported regarding Coal Hard Heap stocks & Coal fed.

6.28 Ensuring accuracy of data recorded and reported regarding Auxiliary Energy Consumption & Handling Vehicle

Utilization.

7. SBO RESPONSIBILITY




7.4 Taking round for assigned area thoroughly, will check ISOALTION & NORMALISATION of equipment as per instruction

from CCR

7.5 Ensuring safety practices, etc. as per the Company norms

7.6 Tagging of equipment as per PERMIT NO.& SIGNING PERMIT



7.8 Inspection of switchgear /mcc/pcc/switchyard system, timely observation & reporting of defects to ensure maximum

plant availability; Perform Registry of defects of equipment as on when happened.


7.10 Note down energy meter reading on timely basis & preparation of report.




7.13 Ensure Zero accident / safety of Man, Machine, and Equipment during operation through Job safety analysis of

critical work..

7.14 Coordination with maintenance depts for isolating the plant equipment’s and handing over the same for







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8 Hours.

7.17 Maintain retract handle, push button release key & other tools at the appropriate place.


7.19 Maintain his log books, log sheets records & get signed from CCR engineer; also will maintain a shutdown defect list.


8. SCOPE OF WORK WTP (DM PLANT, ETP, RAW WATER)

8.1 Raw water Pretreatment operation

8.2 Boiler make up water treatment (DM plant)

8.3 Water & vapour quality supervision & dosing treatment.

8.4 Potable water.

8.5 Sodium hypochlorite generation with salt electrolysis

8.6 Circulating water bypass filter treatment system.

8.7 Sewage treatment plant.

8.8 RO waste water treatment system.

8.9 Feeder and received coal analysis.

8.10 Round the clock Chemistry Operations like; Express laboratory operation (SWAS) & monitoring, DM Plant including

multi-media filter, activated carbon filter(MMF & ACF),operation & regeneration, Raw water and PT plant operation,

potable , Effluent treatment plant operation(including UF & RO), & regeneration, CW (Circulating Water) treatment,

lamella clarifier, efficient fiber filter(side stream filter for CW system) , Water / Fuel Oil / Lube oil / Flue Gas / testing

of bulk chemicals and any other chemicals as requirement arises, Chemistry store management and inventory

control.

8.11 Water quality: The contractor shall be responsible for maintaining quality of DM water and cooling water as per the

deliverable parameters. All requisite chemicals to maintain these parameters shall be in the scope of owner.

8.12 VSLP shall issue the bulk chemicals, however the quantity of the same shall be restricted as per the budget cap

amount. For any additional requirement over and above budgeted, this shall be charged at rates 50% higher than the

purchased cost.

8.13 Cooling water chemicals: Contractor shall maintain quality of cooling water round the year. All the chemicals required

for this purpose are in the scope of owner. (Existing OEM for cooling water chemical is NALCO).

8.14 Developing, obtaining approval and implementing SOP, SMPs, SCP and PM check list compliance. Maintaining timely

record in ERP system, access provided by VSLP.

8.15 Safe operation and shutdown of system / equipment as per instructions of Area In charge.

8.16 Opening / closing of Valves, Dampers, and Gates as & when required and as per instructions received related to

above system.

8.17 The routine & emergency operation as well as necessary isolations of system / circuit / equipment should be done

with utmost care and presence of mind.

8.18 The scope will also include vigilant monitoring of all equipment functioning in surrounding area by taking rounds,

taking note of any abnormal sound, identifying leakages / abnormality of equipment, watching control room & field

instrumentation readings and reporting deviations from desired / running parameters, finding of change in vibration

/ temperature of equipment bearings, prompt updating control room engineers / chemists about any abnormalities,

taking corrective actions and documenting and giving feedback to Area In charge.

8.19 Filling the field log book for all local equipment / system reading. Maintaining timely records in ERP system access

provided by VSLP.

8.20 Mechanical isolation & normalization of equipment /system. Local line up of equipment / system as per standard

operating procedure and giving clearance to control room for start / stop of the equipment.

Z. REPORTS AND MIS :

1. Daily report – The contractor is expected to sign off the joint daily report on steam water, fuel oil, flue gas, lubricating oils,

etc. with VSLP.

2. Daily report should also indicate the status of any major equipment/ auxiliary/ major incidents.

3. Weekly report- Weekly report shall indicate the status of all maintenance activities carried out and pending, unresolved

technical issues along with the reasons thereof. Unresolved technical issues in particular shall be reviewed and closed by

designated officer of the Contractor.

4. Monthly report- Monthly report shall cover the following issues-steam water quality, water consumption, Comparison of

actual water consumption vis-à-vis Design WBD, chemical consumption, raw water, DM water and waste water quantity




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and quality reports, flue gas analysis, oil reports, specific consumption, OBR(output between consecutive regenerations) of

exchangers, CW water analysis and COC, RO membrane performance report etc. Planned maintenance and break down

maintenance activities, major technical issues (resolved and unresolved) etc.

5. Monthly report on all parts/ equipments sent out for repairs. The report to include all the details such as part description,

category, quantity, returnable/non-returnable gate passes details etc.

6. Monitoring of performance Vis-a Vis benchmark performance and submissions of monthly reports thereof.

AA. SPARES UTILIZATION:

1. As per the key deliverable, contractor has to submit the annual spares plan to VSLP for validation. VSLP shall furnish the

validated list to the contractor along with budgeted quantities and amounts.

2. Contractor shall ensure that the equipment under his scope is operated and maintained in such a way that utilization of

spares is restricted to the budgeted quantity/amount as intimated by VSLP from year to year unit wise. Any excess usage of

spares/Chemicals above the budgeted quantity/amount shall be debited to contractor at 50% higher value than that of the

budgeted value.

BB. INDICATIVE (NOT EXHAUSTIVE / LIMITED TO ) ROLE OF CHEMISTRY OPERATIONS :

1. Cleaning of Control Rooms, Control desks, Test laboratory equipment & working benches / glass wares.

2. Cleaning of pumps / motors / vessels / pipe lines periodically, cleaning and flushing of vessels and tanks whenever required,

cleaning of plant equipment by wiping as well as water jetting.

3. Round the clock Water / Oil/ and feeder coal/ fly ash /bottom ash Sample collection from all units and analysis. Transferring

sample to lab and sample conditioning / preparation. Collection of flue gas samples etc. and analysis of all these collected

samples.

4. Quality monitoring and reporting of all the chemistry parameters related to water, steam, flue gas, chemicals, oil, feeder

coal, ash etc. MIS reports to be released by contractor on daily, weekly, fortnightly, monthly basis and as and when required

by Chemistry Head of VSLP.

5. Charging of resin to vessels, emptying of resin from vessels whenever required.

6. Preparation of dosing solutions for Boiler, CW, ACW, PT, potable water Plant, DM Plant, ETP, UF and RO Plant.

7. Unloading and handling of Acid, Alkalis and other Bulk Chemicals with all safety measures.

8. Operation in Clarifier sludge removal and complete cleaning annually.

9. Back wash of filters and membranes.

10. Drawing bulk chemical from storage tank to dosing tank.

11. All operations like; valve opening / closing

12. Transferring materials from central store to chemistry dept. store/designated Storage area as applicable.

13. Returning of empty drums and carboys/ cans to central store.

14. Any other work related to chemistry operations

15. Once in a year checking the resin quality, activated carbon quality, & multi grade media quality, unloading the vessels &

checking the rubber lining/internal coating & check the vessel internals, topping up the media, conducting performance

test.

16. Lamella & thickeners sludge cleaning, UF, RO cleaning, cartridge filter cleaning, conducting annual performance test.

17. Assisting in inventory management and control.

18. Segregating and removing the scraps from each site after completion of work to ensure housekeeping. Shifting of waste oil

drums and scraps material to scrap yard.

19. Implementing safety standards of Owner Safety Section to ensure safety compliance in all activities of BOP & chemistry

O&M.

20. Data Management, Work Scheduling and Report Generation.

21. The Contractor shall maintain daily logging of the progress made during each shift which includes preventive/ breakdown/

shutdown/ faults attended during the shift.

22. O&M of any additional equipment added in future (as a part of BOP & chemistry) shall be in the scope of the Contractor on

mutually agreed terms.

23. Any activities not mentioned in the scope, yet are required for successful completion of the job are within the purview of

this comprehensive Contract.

24. Training and Skill development of Contractor’s own team.

25. Opening & closing of vessel / tank manholes, Emptying resin from vessels, inspection of internal lining & internals, repairing

& replacement of internal header / distributor / nozzles, removal of obstructions, re-filling of resin after completion of

maintenance work.




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27. Erecting Safe scaffolding to work whenever and wherever required and immediate removal of the same on completion of

maintenance work.

28. Oil replacement / Grease filling in pump bearings / gearboxes.

CC. CHEMICAL HANDLING WORK :

1. The persons to be engaged in handling acid, alkali material should be properly skilled and experienced and adequately

trained in using PPE, first aid to be done, actions to be taken in emergency, knowledge of MSDS, relevant contractor

approved/revised/ reviewed SOPs/SMPs which are subjected Job Safety Analysis.

2. Wearing relevant personal protective equipment such as acid, alkali proof aprons, full body chemical protection suit with

visor or face shield / gas cartridge piece, fume mask, hand gloves etc. is mandatory while handling the chemicals.

3. The contractor has to ensure availability in sufficient quantity of personal protective equipment as per standards as

mentioned above and it has to be maintained properly by the concerned contractor.

4. Where ever relevant, crew and supervisors are to be trained in the use of respiratory protection like breathing apparatus,

canister mask, cartridge mask etc.

DD. TESTING TO BE CARRIED OUT IN GIVEN FORMAT BY EIC

1. Raw water analysis

2. Cooling water analysis

3. Clear water analysis

4. Steam water analysis (SWAS)

5. Potable water analysis

6. Flue gas

7. Feeder and received coal analysis

8. Coal sieve analysis.

9. Ash analysis

10. Oil analysis

11. Waste water analysis

12. RO water analysis.

13. DM water analysis

14. Hypochlorite

15. Raw chemicals analysis.

EE. ROUND THE CLOCK COAL SAMPLING OF THE RECEIVED COAL AT THE VSLP SITE

SPECIAL INSTRUCTIONS:

The scope of work under this contract shall include but not limited to provide quality inspection service of coal at VSLP

Gurha site.

Scope of Work:

1. Truck wise (Daily basis) Sampling

2. Composite sample preparation for a whole day receipt coal for testing (quality / rake wise).

3. Sample preparation on 01day after sampling as per SOP.

4. Coal Samples will be tested in plant laboratory and to be submitted one reference sample of 200 kg.

5. Grams pass to 212 micron to lab.

6. Sample collection will be done from 00.00 am to 00.00 am for 24 hours a day.

7. Plastic bags / HDPE bags to be utilized for sample collection. The condition of bags should be good enough to restrict

external moisture and external items. The sample plastic bag should be properly sealed with tags after sample collection.

8. As and when required stock sampling, sample preparation.

9. Equipment for collection of sample collection, sample collecting bags, shift log books, tags, and other consumable etc. are in

the contractor’s scope.

10. Housekeeping of the area working equipment.

FF. QUANTUM OF WORK:

VSLP reserves the right to allocate part or full of the quantum of work accepted by Contractor or allocate the work to

multiple agencies. The decision of VSLP in selection of Agency/ Agencies shall be final and binding on Contractor.




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GG. SAMPLING AND TESTING PROCEDURE:

Sampling, testing and inspection procedure shall be as per relevant National/International Norms / codes and confirmed by

VSLP from time to time. You shall have to submit relevant SOP for sample collection, Preparation and analysis of the same

and it should be confirmed by VSLP. Sampling of Received coal in shift wise from TRUCK sampling to be carried out as per IS

436.Analysis to be carried out as per IS 1350 will be done at VSLP site.

HH. REPORTS:

Contractor shall furnish all sampling, preparation, inspection, supervision reports as per the formats provided by VSLP

with in stipulated time agreed.

II. MALPRACTICE

If any of the employee/ surveyor/ inspector deputed by Contractor to provide services to VSLP is found involved in any

malpractice, VSLP will be entitled to suspend the involved person. However if the same has been repeated VSLP will

conduct an investigation into the malpractice's if upon such investigation VSLP in its sole discretion concludes that

Contractor has complicity in the malpractice, the contract shall stand terminated.

annexure 1 - technical specifications vslpksk.co.in/vslp/docs/nit/reqdocs051219/annexure1.pdf ·...

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