2 YEAR RUNNING MTC. CONTRACT FOR ROUTINE, PREVENTIVE, BREAKDOWN MTC. OF BOILER PRESSURE PARTS, COAL AND OIL BURNER ASSEMBLIES, WIND BOX, HP VALVES, SAFETY VALVES, FANS, APH, ESP, DUCTING AND FUEL OIL PUMPS ETC. FOR 2X600 MW UNIT-I and II AT RGTPP

Amount

For Scope of work under Part-A, for First Year: Lump Sum Rate for First Year for Main Scope of work under Part-A (i.e. work of Boiler Pressure Parts, Boiler Rotary Parts & Common Activities as Per Scope of Work at Annexure-III)

For Scope of work under Part-B (Annexure-VI), for First Year (from 2.01 to 2.70)

Mobilization & attending the boiler tube leakage / preventive mtc. of pressure parts tubes in boiler but excluding Platen Super Heater area, Divisional Super Heater area, Platen Re Heater area, Finish Reheater area & Panel/wall Reheater area. It includes cutting, welding, fit-up, grinding and replacement of tube of all sizes and thickness involving upto 10 nos. joints. Note:- (i) 3 Nos. Metal Built-ups each having length upto 100 mm will be considered as one joint and each window type joint will be considered as equivalent to 3 normal joints.(ii) Through inspection for identification of failed tubes & inspection of adjoining area in vicinity of failed tube(s) will be in the scope of work of contractor. To identify and attend the tubes found damaged & eroded tubes due to secondary damage. (iii) A separate gang of 10 persons (tentatively) including highly skilled IBR HP welder, grinder man, fitter, inspection team & technician etc.to be deployed by the contractor for attending boiler tube leakage and inspection. (iv) Minor scaffolding (i.e. up to using 5 nos. jalies for height of 1 mtr from base will be in scope of contractor & no separate payment will be made

Carraying out HP joint in addition to 10 nos. joints mentioned at Sr. No. 1 above in boiler excluding Platen Super Heater area, Divisional Super Heater area, Platen Reheater area, Finish Reheater area & Panel//wall Reheater area. It includes cutting, welding, fit-up, grinding and welding of one no. joint of tube of all sizes and any thickness of boiler in area covered under Sr. No.1 above.

Metal build up on worn out boiler tubes in boiler excluding Platen Super Heater area, Divisional Super Heater area, Platen Reheater area, Finish Reheater area & Panel/wall Reheater area half round surface by HP welder upto 100 MM length.

Attending leakage by welding of HP Joints of outside the boiler including replacement of pipe up to 1 Mtr. Length / valve / bends by cutting, welding, grinding and fit-up work for each joint.NOTE: In case HP welder capable of doing the above work does not reach RGTPP within 8 Hrs. Of verbal/written/SMS instructions by EIC (i.e. AEE/AE Concerned) or higher authority & hence work could not be started or welder engaged is found incompetent then penalty of Rs.5000/- per day will be imposed on the contractor which will be in addition to other penalty clauses as applicable. Also work will be got carried out through outside agency which will cost approx minimum Rs.20000/- per day at the risk & cost of the contractor and hence deducted from his running bill/s. It is pertinent to mention that above value of risk & cost will be over & above the penalty amount.

Replacements of gasket of man hole of boiler drum including minor repair/grinding, if any

Repair, rectification & re-fixing of cassette baffles.

Providing & Re-positioning of twisted shields/ Replacement of shielding plates/shrouds plated on various boiler tubes.

Casting refractory on boiler.

Providing skin casing with 3mm plate

Providing buck stay pin / repairing of buck stay.

Providing of scaffolding & platform in the inside/outside boiler area (height X length) with width of 2 nos. Jali(i.e. 2-3 feet approx. using more than 2-3 Jali)

Replacement of steam tracing line.

Internal water washing of goose neck area (i.e. rear arc area) and 2nd pass of boiler.

External water washing of boiler from 42 Meters Approx to bottom ring header elevation

External water washing of boiler from pent house to zero meter including 2nd pass

Checking of Burner Tilt Mechanism and rectification thereof at one corner.a) Disconnections of all reach rods from burner tilt mechanism as per requirement.b) Dismantling of burner tilt mechanism including removal of drive shaft after disconnecting from burner tilt power cylinder. Removal of burner tilt power cylinder from its position if required by C & I mtc. And refitting of same & replacement of burner tilt shear pin/ other pins, if found damaged.c) Lubrication of pins, shafts, studs of reach rod etc. As per requirement.d) Repair/ replacement of reach rod turn buckle, pivot pins, pins of tilting mechanism as per requirement.e) Assembly & refitting of burner tilt mechanism.f) Connections of all reach rods to burner tilt mechanism and zero setting of all nozzle tips.f) Connections of all reach rods to burner tilt mechanism and zero setting of all nozzle tips.g) Tilting trail of burner tilt. Ensure free operation of burner tilt upto +/ - 30 degree connecting with power cylinder and trail operation power cylinder.

Rectification of jammed secondary air damper from inside wind box.a) Cleaning and removing of all the ash accumulated in SADC partition plate in all the four corners and cleaning shafts and bush with diesel/ restoline etc. As per requirement.b) Repair/ replacement of damper flaps, bush, glands, links and partition plate of damper compartment as per requirement.c) Making damper operation free & smooth.d) Providing damper movement indicators over the shaft as per requirement.e) Repairing secondary air damper lever & its connection with damper power cylinder if required.f) Removal of bush of drive end & non drive end along with bush housing in case of jamming of SADC if required & refitting of same after repairing or replacement by new.g) Repairing and replacement of stopper.NOTE: Scaffolding if required for above work will be paid extra as per unit rate under item No. 11.

Rectification of jammed secondary air damper from outside wind box.

Repairing of scanner guide assembly including its removal from panel, repair/replacement of worn out parts if required and checking its movement with tilting mechanism.

Servicing / overhauling of oil gun assembly with Igniter including replacement of worn out parts if required.

Opening/closing of oil gun/coal nozzle/air chamber for inspection

Removal, refitting & servicing of burner isolating gate with replacement of gaskets etc. at furnace end. NOTE: All the associated works such as removal/ locking of fuel inlet elbow, removal of Victaulic coupling etc. Required for completion of above job is included in scope of work. In case work is not started within reasonable time after verbal/ written/ SMS instructions by EIC (i.e. AEE/AE concerned) or higher authority or manpower engaged is found incompetent then penalty of Rs. 5000/- per day will be imposed on the contractor which will be in addition to other penalty clauses as applicable. Also work will be got carried out through outside agency which will cost approx minimum Rs. 30,000/- plus taxes extra as applicable per day at the risk and cost of other agency of the contractor and hence deducted from his running bills. It is pertinent to mention that above value of risk will be over and above the penalty amount.

Repairing of boiler seal trough dipping plate which includes lifting/lowering/bolting etc as per requirement.

Repair/replacement of tie rod of any hanger in boiler area.

Replacement of ss wire mesh in seal trough area

Complete servicing of wall soot blower.

Repairing/replacement of Chain of long retractable soot blower

Complete servicing / Repairing of long retractable soot blower including Gear Box including lance, other spares replacement etc if required

Repair, Servicing, replacement of damaged spares / gaskets & attending steam leakages of valves/ NRVs of size 600 mm & above

Decoupling & coupling after alignment of ID / FD / PA Fan with motor

Replacement of blade pitch control system ( i.e. Hydraulic Cylinder) of ID/FD/PA Fan

Opening & Re-fixing of top casing of ID/FD/PA Fan including removal/ replacement of fabric expansion joint of casing.

Attending oil leakage of bearing housing of ID/FD/PA Fans excluding top cover opening.

Attending oil leakage of blade pitch control system of ID Fans including removing/ replacement of cover plate

Replacement of complete set of blades of ID fans excluding top cover opening.

Replacement of complete set of blades of both impellers of PA fans excluding top cover opening.

Replacement of lube oil pump or coupling of lube oil pump, including opening & re-fixing of Lube oil pump of ID / FD / PA Fan

Removal of impeller of scanner air fan from motor shaft and its refitting.

Attending cooler tube leakage of lube oil system of ID/FD/PA fans.

Cleaning of oil coolers.

Replacement of oil after thorough cleaning of oil chamber from inside.

Replacement of DE/NDE bearing of ID/PA Fan motors.

Repairing of steam/ air lance of soot blower by welding

Cleaning of lube oil coolers.

Replacement of mechanical seal of lub oil pump of guide/ support bearing including dismantlement & assembly of pump.

Water washing of APHs through washing system or Fire Fighting line.

Coupling & decoupling of rapping mechanism gear boxes of ESP.

Checking of ESP field

Checking of rapping mechanism of one complete pass

Removal of snapped emitting electrodes.

Erection of new emitting electrodes

Repairing/ replacement of shock bar, Repairing of guide bar

Replacement of shaft insulator

Replacement of plain fixed / free bearing

Re-positioning / removal / replacement of deflection plate.

Repairing of worn/ damaged manhole

Cleaning of shaft insulators.

Attending leakages of ash by welding from inside of hopper including cleaning of surface of hopper for pointing out leakage, formation of temporary platforms if required etc.

Fabrication, repair & fitment of Flap assembly of Mechanical Ash Level Indicators of ESP hoppers.

Patch work on ducts up to 300mm x 300mm

Repairing of duct with welding ( welding in running meter)

Repair / replacement of fabric expansion bellow in air/ flue gas duct or in any other area irrespective of width

Replacement of cartridge of HFO / LDO pressurizing pump including replacement of mechanical seal, bearings, if required, including alignment and normalization.

Replacement of mechanical seals of HFO/LDO unloading pump/ transfer/pressurizing pump

Erection of temporary platform in the different auxiliaries area (Height X Length ) up to width of 02 jali’s (using more than 2-3 jali). In addition to the work covered in part A.

Deployment of below mentioned manpower as per requirement for the miscellaneous jobs which are not covered above. A gang of 1 no. Tech. & 1 no. Helper for attending any misc. Job for duration of 4 hours.

Deployment of below mentioned manpower as per requirement for the miscellaneous jobs which are not covered above:A gang of 1 no. Rigger. & I no. Helper for attending any misc. Job for duration of 4 hours.

Deployment of below mentioned manpower as per requirement for the miscellaneous jobs which are not covered above.A gang of I no. Painter & I no. Helper for doing any misc. Painting job for duration of 4 hours.

Fabrication & erection of Misc. Steel structure

Removal/re-fixing of any dislocated / bulged skin casing /3.15mm sheet up to 01 Sqr. Meter in boiler

For Scope of work under Part-A, for Second Year : Lump Sum Rate for First Year for Main Scope of work under Part-A (i.e. work of Boiler Pressure Parts, Boiler Rotary Parts & Common Activities as Per Scope of Work at Annexure-III)

For Scope of work under Part-B (Annexure-VI), for Second Year (from 4.01 to 4.70)

Mobilization & attending the boiler tube leakage / preventive mtc. of pressure parts tubes in boiler but excluding Platen Super Heater area, Divisional Super Heater area, Platen Re Heater area, Finish Reheater area & Panel/wall Reheater area. It includes cutting, welding, fit-up, grinding and replacement of tube of all sizes and thickness involving upto 10 nos. joints. Note:- (i) 3 Nos. Metal Built-ups each having length upto 100 mm will be considered as one joint and each window type joint will be considered as equivalent to 3 normal joints.(ii) Through inspection for identification of failed tubes & inspection of adjoining area in vicinity of failed tube(s) will be in the scope of work of contractor. To identify and attend the tubes found damaged & eroded tubes due to secondary damage. (iii) A separate gang of 10 persons (tentatively) including highly skilled IBR HP welder, grinder man, fitter, inspection team & technician etc.to be deployed by the contractor for attending boiler tube leakage and inspection. (iv) Minor scaffolding (i.e. up to using 5 nos. jalies for height of 1 mtr from base will be in scope of contractor & no separate payment will be made

Carraying out HP joint in addition to 10 nos. joints mentioned at Sr. No. 1 above in boiler excluding Platen Super Heater area, Divisional Super Heater area, Platen Reheater area, Finish Reheater area & Panel//wall Reheater area. It includes cutting, welding, fit-up, grinding and welding of one no. joint of tube of all sizes and any thickness of boiler in area covered under Sr. No.1 above.

Metal build up on worn out boiler tubes in boiler excluding Platen Super Heater area, Divisional Super Heater area, Platen Reheater area, Finish Reheater area & Panel/wall Reheater area half round surface by HP welder upto 100 MM length.

Attending leakage by welding of HP Joints of outside the boiler including replacement of pipe up to 1 Mtr. Length / valve / bends by cutting, welding, grinding and fit-up work for each joint.NOTE: In case HP welder capable of doing the above work does not reach RGTPP within 8 Hrs. Of verbal/written/SMS instructions by EIC (i.e. AEE/AE Concerned) or higher authority & hence work could not be started or welder engaged is found incompetent then penalty of Rs.5000/- per day will be imposed on the contractor which will be in addition to other penalty clauses as applicable. Also work will be got carried out through outside agency which will cost approx minimum Rs.20000/- per day at the risk & cost of the contractor and hence deducted from his running bill/s. It is pertinent to mention that above value of risk & cost will be over & above the penalty amount.

Replacements of gasket of man hole of boiler drum including minor repair/grinding, if any

Repair, rectification & re-fixing of cassette baffles.

Providing & Re-positioning of twisted shields/ Replacement of shielding plates/shrouds plated on various boiler tubes.

Casting refractory on boiler.

Providing skin casing with 3mm plate

Providing buck stay pin / repairing of buck stay.

Providing of scaffolding & platform in the inside/outside boiler area (height X length) with width of 2 nos. Jali(i.e. 2-3 feet approx. using more than 2-3 Jali)

Replacement of steam tracing line.

Internal water washing of goose neck area (i.e. rear arc area) and 2nd pass of boiler.

External water washing of boiler from 42 Meters Approx to bottom ring header elevation

External water washing of boiler from pent house to zero meter including 2nd pass

Checking of Burner Tilt Mechanism and rectification thereof at one corner.a) Disconnections of all reach rods from burner tilt mechanism as per requirement.b) Dismantling of burner tilt mechanism including removal of drive shaft after disconnecting from burner tilt power cylinder. Removal of burner tilt power cylinder from its position if required by C & I mtc. And refitting of same & replacement of burner tilt shear pin/ other pins, if found damaged.c) Lubrication of pins, shafts, studs of reach rod etc. As per requirement.d) Repair/ replacement of reach rod turn buckle, pivot pins, pins of tilting mechanism as per requirement.e) Assembly & refitting of burner tilt mechanism.f) Connections of all reach rods to burner tilt mechanism and zero setting of all nozzle tips.f) Connections of all reach rods to burner tilt mechanism and zero setting of all nozzle tips.g) Tilting trail of burner tilt. Ensure free operation of burner tilt upto +/ - 30 degree connecting with power cylinder and trail operation power cylinder.

Rectification of jammed secondary air damper from inside wind box.a) Cleaning and removing of all the ash accumulated in SADC partition plate in all the four corners and cleaning shafts and bush with diesel/ restoline etc. As per requirement.b) Repair/ replacement of damper flaps, bush, glands, links and partition plate of damper compartment as per requirement.c) Making damper operation free & smooth.d) Providing damper movement indicators over the shaft as per requirement.e) Repairing secondary air damper lever & its connection with damper power cylinder if required.f) Removal of bush of drive end & non drive end along with bush housing in case of jamming of SADC if required & refitting of same after repairing or replacement by new.g) Repairing and replacement of stopper.NOTE: Scaffolding if required for above work will be paid extra as per unit rate under item No. 11.

Rectification of jammed secondary air damper from outside wind box.

Repairing of scanner guide assembly including its removal from panel, repair/replacement of worn out parts if required and checking its movement with tilting mechanism.

Servicing / overhauling of oil gun assembly with Igniter including replacement of worn out parts if required.

Opening/closing of oil gun/coal nozzle/air chamber for inspection

Removal, refitting & servicing of burner isolating gate with replacement of gaskets etc. at furnace end. NOTE: All the associated works such as removal/ locking of fuel inlet elbow, removal of Victaulic coupling etc. Required for completion of above job is included in scope of work. In case work is not started within reasonable time after verbal/ written/ SMS instructions by EIC (i.e. AEE/AE concerned) or higher authority or manpower engaged is found incompetent then penalty of Rs. 5000/- per day will be imposed on the contractor which will be in addition to other penalty clauses as applicable. Also work will be got carried out through outside agency which will cost approx minimum Rs. 30,000/- plus taxes extra as applicable per day at the risk and cost of other agency of the contractor and hence deducted from his running bills. It is pertinent to mention that above value of risk will be over and above the penalty amount.

Repairing of boiler seal trough dipping plate which includes lifting/lowering/bolting etc as per requirement.

Repair/replacement of tie rod of any hanger in boiler area.

Replacement of ss wire mesh in seal trough area

Complete servicing of wall soot blower.

Repairing/replacement of Chain of long retractable soot blower

Complete servicing / Repairing of long retractable soot blower including Gear Box including lance, other spares replacement etc if required

Repair, Servicing, replacement of damaged spares / gaskets & attending steam leakages of valves/ NRVs of size 600 mm & above

Decoupling & coupling after alignment of ID / FD / PA Fan with motor

Replacement of blade pitch control system ( i.e. Hydraulic Cylinder) of ID/FD/PA Fan

Opening & Re-fixing of top casing of ID/FD/PA Fan including removal/ replacement of fabric expansion joint of casing.

Attending oil leakage of bearing housing of ID/FD/PA Fans excluding top cover opening.

Attending oil leakage of blade pitch control system of ID Fans including removing/ replacement of cover plate

Replacement of complete set of blades of ID fans excluding top cover opening.

Replacement of complete set of blades of both impellers of PA fans excluding top cover opening.

Replacement of lube oil pump or coupling of lube oil pump, including opening & re-fixing of Lube oil pump of ID / FD / PA Fan

Removal of impeller of scanner air fan from motor shaft and its refitting.

Attending cooler tube leakage of lube oil system of ID/FD/PA fans.

Cleaning of oil coolers.

Replacement of oil after thorough cleaning of oil chamber from inside.

Replacement of DE/NDE bearing of ID/PA Fan motors.

Repairing of steam/ air lance of soot blower by welding

Cleaning of lube oil coolers.

Replacement of mechanical seal of lub oil pump of guide/ support bearing including dismantlement & assembly of pump.

Water washing of APHs through washing system or Fire Fighting line.

Coupling & decoupling of rapping mechanism gear boxes of ESP.

Checking of ESP field

Checking of rapping mechanism of one complete pass

Removal of snapped emitting electrodes.

Erection of new emitting electrodes

Repairing/ replacement of shock bar, Repairing of guide bar

Replacement of shaft insulator

Replacement of plain fixed / free bearing

Re-positioning / removal / replacement of deflection plate.

Repairing of worn/ damaged manhole

Cleaning of shaft insulators.

Attending leakages of ash by welding from inside of hopper including cleaning of surface of hopper for pointing out leakage, formation of temporary platforms if required etc.

Fabrication, repair & fitment of Flap assembly of Mechanical Ash Level Indicators of ESP hoppers.

Patch work on ducts up to 300mm x 300mm

Repairing of duct with welding ( welding in running meter)

Repair / replacement of fabric expansion bellow in air/ flue gas duct or in any other area irrespective of width

Replacement of cartridge of HFO / LDO pressurizing pump including replacement of mechanical seal, bearings, if required, including alignment and normalization.

Replacement of mechanical seals of HFO/LDO unloading pump/ transfer/pressurizing pump

Erection of temporary platform in the different auxiliaries area (Height X Length ) up to width of 02 jali’s (using more than 2-3 jali). In addition to the work covered in part A.

Deployment of below mentioned manpower as per requirement for the miscellaneous jobs which are not covered above. A gang of 1 no. Tech. & 1 no. Helper for attending any misc. Job for duration of 4 hours.

Deployment of below mentioned manpower as per requirement for the miscellaneous jobs which are not covered above:A gang of 1 no. Rigger. & I no. Helper for attending any misc. Job for duration of 4 hours.

Deployment of below mentioned manpower as per requirement for the miscellaneous jobs which are not covered above.A gang of I no. Painter & I no. Helper for doing any misc. Painting job for duration of 4 hours.

Fabrication & erection of Misc. Steel structure

Removal/re-fixing of any dislocated / bulged skin casing /3.15mm sheet up to 01 Sqr. Meter in boiler

CHANDA CONSTRUCTION CO.

Gill Engineering Pvt. Ltd.