ML24121A186

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Attachment 3: Peach Bottom ECCS Compensated Level System Replacement Project Presentation Material (Non-Proprietary Information)
ML24121A186
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Site: Peach Bottom  
Issue date: 05/14/2024
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Constellation Energy Generation
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Office of Nuclear Reactor Regulation
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ATTACHMENT 3 Peach Bottom ECCS Compensated Level System Replacement Project Presentation Material (Non-Proprietary Information)

PeachBottomAtomicPowerStation ECCSCompensatedLevel System ReplacementProject NRCPresubmittalMeeting May14,2024

  • Open/PublicSession

Introductions

ExpectedOutcomeforMeeting ProjectScope PlantNeed/ProjectBenefits ProjectStrategy MajorProjectMilestones ProjectOrganization LicenseAmendmentRequest Overview VendorOversightPlan SelectRegulatoryTopics

  • Closed Session OverviewofCurtissWrightDigitalSafetySystem CurrentandProposedArchitecture SelectRegulatoryTopics Primer Agenda/OpeningRemarks 1
  • MattRector,Sr.Manager,PEAOperations
  • PabloGuardado,PrincipalPM,PEAProjectManagement
  • SteveDragovich,Sr.StaffEngineer,CentralDesignEngineering
  • BrianWright, Manager, PEAStrategicEngineering
  • JohnHopson,Sr.StaffEngineer,PEAStrategicEngineering
  • FrankMascitelli,Sr.Reg.Engineer,CorporateLicensing RemoteParticipation:
  • DavidHelker,Sr.Manager,CorporateLicensing
  • RichardGropp,Sr.RegEngineer,CorporateLicensing
  • AmyHuber,PrincipalReg.Engineer,Reg.Assurance
  • BeckyBalliet, Sr.PM,PEAProjectManagement
  • DavidPeiffer,LeadAssessor, NuclearOversight Introductions-ProjectTeam(ConstellationEnergy) 2
  • TheresaSutter-PlantInformationMonitoringandControlsGeneralManager
  • MartyMurphy-RegulatoryandLicensingSupport
  • MichaelKosman-ProjectManager
  • RobertAmmon-TechnicalDirector/ProjectEngineer Introductions-ProjectTeam(CurtissWright) 3
  • SandyJannetty-ProjectDirector
  • Pareez Golub-ProjectDirector,LicensingSME
  • JohnMcCague - ProjectManager
  • RyleeRunyon-DI&CLicensing
  • JohnSchrage-SeniorConsultant,LicensingSME Introductions-ProjectTeam(S&L) 4
  • NRCwillhaveahighlevelofunderstandingoftheECCSCompensatedLevel System ReplacementProjectincluding:

Projectscopeandschedule Currentprojectmilestones Plannedreplacementsystemarchitecture CurtissWrightDigitalSafetySystemandRadICS PlatformOverview LicensingApproachsummary

  • ConstellationwillgaininsightsonNRClessonslearnedincluding:

PreviousdigitalLicenseAmendmentRequests(LAR)

UseofFieldProgrammableGateArray(FPGA)technologyforreactorsafety systems,includinguseinnewreactordesigns InsightsfromtheRadICS PlatformSafetyEvaluationReport(SER)

ExpectedOutcomeofMeeting 5

6 ProjectScope

7

  • Projectconsistsofreplacingcontrolsystemhardwareandsoftwareonly;no changetofieldequipment
  • FoxboroSPEC 200consistsoftwoprimarysystems:

ECCSReactorWaterLevelCompensation PostAccidentMonitoringSystem ProjectScope

ProjectScope SystemDescription(continued) 8

  • FoxboroSPEC 200iscomprisedoftwoprimarysystems:

ECCSReactorWaterLevelCompensation Fourindependentcompensationinstrumentsystemsprovidingfour instrumentchannels,A,B,C,andD EachchannelreceivesinputsignalsfromaWideRangeLevelTransmitter, FuelZoneLeveltransmitter,andaReactorPressureTransmitter Mountedintwocabinets,2(3)0C818A/Cand2(3)0C819B/D,wheretheA andBchannelsare mountedin front, CandDchannelsaremounted in rear CabinetslocatedinCableSpreadingRoomandComputerRoom(Unit3) andCableSpreadingRoomonly(Unit2)

EachECCScabinetcan,byitself,produceafullECCSinitiation(2outof2 logic)

Eachchannelhasa120VACsafeguardfeedanda125VDCfeed Autoinitiationisstillpossibleifallpowerislosttoonecabinet

ProjectScope SystemDescription(continued) 9 PostAccidentMonitoring(PAM)

Providesoperatorwithinformationformonitoringprimary containmentconditionsafterapostulatedaccident Eachrecorderanditsassociatedinstrumentationareassignedtotwo independentsafeguardpowerelectricaldivisions SPEC200MICROequipmentmountedincabinets2(3)0C722Aand 2(3)0C722B

  • FeedwaterControl, ECCSinitiation,andPAMinstrumentsuseCompensated ReactorWaterlevel,whichaccountsfordifferentdensitiesinthecold ReferenceLegsvs.ReactorVessel.

ProjectScope SystemDescription(continued) 10 XAM117

ProjectScope-SystemDiagram 11

  • Allcomponentshighlightedbelow(yellow/blue)willbephysicallyreplaced,with theexceptionofallcoincidencelogicandassociatedinstruments(downstream)

CurrentSystemLayout(CableSpreading/ComputerRoom) 12

13 PlantNeedsandProject Benefits

  • TheFoxboroSPEC200MICROsystemis obsoleteandposesanincreased generationriskasthesystemcontinuesto age Noproductsupport endofsalein 2007,endofsupportin2017 FailureofonechannelofWideRange Levelwillresultina24hourLCO3.0.3.

Limited sparepartsavailable throughout theindustry Nolongtermmaintenancecapability as componentscannotbereverse engineered PlantNeedsandProjectBenefits 14

  • Benefits SupportPeachBottomandConstellation Energy'slongtermequipmentreliability strategyfordigitalobsolescence.

Takeadvantageof assemblythat uses standard(available) components/moduleswithapplication specificsoftware versus

'customized' parts.

Providecompatible,reliable,density compensatedandeasilymaintainable digitalreactorinstrumentationECCS systemthroughendofsubsequent licenserenewal(SLR).

PlantNeedsandProjectBenefits 15

  • Benefits Utilizedigitalselfdiagnosticfeaturesto minimizeonlineriskandadverseimpactto generation.Furthermore,optimizework reduction(i.e.,troubleshooting,preventive maintenance,andsurveillancetesting).

ImprovedOperator/Maintenance Interfaces(PPC)

PlantNeedsandProjectBenefits 16

17 ProjectStrategy

ProjectStrategy 18

  • Projectscopeislimitedtothecontrolsystemboundary NoanticipatedHFEimpacts(i.e.,noControlRoommodificationsto indicators/recorders)

Nomodificationstofieldequipment

  • Maintainexistingequipmentfootprint Reuseexistingcabinetswherepractical Utilizeexistingfieldcabling/raceway
  • Useexistingcontrollogicinthedevelopmentof requirementsspecifications toensureidenticalsystemperformance
  • NoTechnicalSpecificationchangesanticipated

19 MajorProject Milestones

EstimatedDate Milestone 01/30/24 PhaseIStudyCompletion{Complete}

01/31/24 PhaseIIDesignKickOff{Complete}

03/25/24 PhaseIIDesignFundingAuthorization {Complete}

05/14/24 NRCPresubmittal1stmeeting 12/19/24 CommonEC30%Milestone 04/09/25 Prepare/SubmitLARtoNRC 09/09/25 CommonEC60%Milestone 10/15/25 PhaseIIIInstallationFundingAuthorization 10/17/25 CommonEC100%Complete(endofPhaseIIDesignforU2) 01/02/26 PhaseIIIInstallationPlanningStartforP2R26 06/19/26 LARApprovalMilestoneforP2R26 09/14/26 Clearance&TagoutApprovalMilestoneforP2R26 09/18/26 Planning'ReadytoWork'MilestoneforP2R26 11/15/26 Unit2Installation(P2R26) 11/11/27 Unit3Installation(P3R26)

HighLevelProjectSchedule 20

21 ProjectOrganization

OverviewofConstellationEnergy(PEA) 22 Centralized Design Organization Operations WorkManagement Maintenance Supply Licensing/

Reg Assurance Project Management Project Sponsor Strategic Engineering Stakeholders Sargent&

Lundy Licensing Sargent&

Lundy Engineering Legal IT Training BusinessOps Corporate Engineering RiskManagement

OverviewofCurtissWright 23 EMSDivision APServices Nova CWCanada Enertech Scientech QualTech NP EMD Farris ValveDivision Nuclear Division EST SAS DynaFlo TargetRock OutageandFuel Management Services(OFMS)

PlantInformation Monitoring&

Controls(PIMC)

Naval&

Power Segment

  • TheCurtissWrightDigitalSafetySystem(DSS)willbeusedfortheECCS CompensatedLevelreplacementproject

- BasedupontheRadICS PlatformprovidedtoCWbyRPCRadicsLLC

  • Designed,Manufactured,Tested,Installed,LicensedandSupportedbyCurtiss WrightfacilityinIdahoFallsIdahowithsupportfromvariouspartners

- RPCRadicsLLC

- NewClear Day

  • RPCRadicsLLCprovidestoCurtissWright:

- RadICS Platformhardware

- Selectedengineeringsupport

- IndependentVerificationandValidationoftheCurtissWrightdesignand implementation

  • Radicsequipmentandservicesprovidedundera10CFR50AppendixB,NQA1 QAprogramthathasbeenauditedbyCurtissWrightandreviewedbytheNRC OverviewofCurtissWrightDigitalSafetySystem 24

25 LAROverview

  • LARwillseekNRCreviewandapprovaltoincorporatetheRadICS technology (i.e.,theFPGAhardwareandsoftware)intothelicensingbasisdescribedinthe PBAPSUFSAR.
  • AnticipatethattherewillbenochangestoMainControlRoom,Operator Actions,orTechnicalSpecifications.
  • LARwillrequesttheuseoftheDI&CISG06AlternateReviewProcess(ARP)for theNRCsreviewandapproval.
  • ThecontentoftheLARwillcomplywiththeARPrequirementsspecifiedinDI&C ISG06.
  • CEGwilldrawuponandreferenceapplicableregulatoryguidanceandlicensing precedenceconcerningtheuseofFPGAtechnology,aswellastheARP.

LicensingApproach 26

  • TheLARwillincludethefollowing

- LicensingTechnicalReport(LTR);ThiswillbeanattachmenttotheLAR TechnicalEvaluationandwillidentify,foreachARPrequiredinput(i.e.,DI&C ISG06,SectionsC.2.2andD.1throughD.8),whereandhowthisinformation isprovided. ThisincludesthefollowingasadditionalLARattachments:

  • SystemRequirementSpecification(SRS)(D.2.3.3)
  • ComplianceMatrixforIEEEStds.6031991and74.3.22003(D.6)
  • FailureModesandEffectsAnalysis(FMEA)(D.2.6.2)
  • EquipmentQualificationSummaryReport(D.3)
  • VendorOversightPlan(VOP)Summary(C.2.2)
  • Regulatorycommitments(C.2.2)
  • ConceptualUFSAR,Chapter7Markups(D.2.2)

- D3andCCFCopingAnalysis;ThiswillbeanattachmenttotheLARTechnical EvaluationandwillidentifycompliancewithSERPSAI7.9.

- Ifspecificinformationisnotavailable,theLARwillprovideaschedulefor submittaloftheinformation.

LARContents 27

  • TheLARwilladdressthefollowingRadICS PlatformSERProject SpecificActionItems(PSAIs):

- PSAI7.1 RadICS PlatformChanges

  • Anapplicantorlicenseereferencingthetopicalreportshoulddemonstratethat theRadICS platformusedtoimplementtheplantspecificsystemisunchanged fromthegenericplatformaddressedinthisSE.

nochangestoRadICS PlatformfromTopicalReport LARContents(PSAIs) 28

  • TheLARwilladdressthefollowingRadICS PlatformSERProject SpecificActionItems(PSAIs):

- PSAI7.2 ApplicationLogicDevelopmentProcess

  • Anapplicantorlicenseereferencingthetopicalreportshouldprovideoversight toensurethedevelopmentofitsApplicationLogicisperformedinaccordance withanacceptableprocessthatisequivalenttotheprocessesdescribedin Sections7and8oftheRadICS TRandevaluatedinSection3.5ofthisSE sameSystemDevelopmentProcessasdescribedinSection7and8 oftheRadICS TopicalReport LARContents(PSAIs) 29
  • TheLARwilladdressthefollowingRadICS PlatformSERProject SpecificActionItems(PSAIs):

- PSAI7.3 SystemCycleTime

  • Theapplicantorlicenseemustperformtiminganalysesandfunctionaltesting oftheapplicationlogicimplementationandsystemconfigurationto demonstratethatresponsetimeperformancesatisfiesapplicationspecific requirementsestablishedintheplantssafetyanalysisreport.

RadICS responsetimeof ((

))a,c,f is significantlylessthantheexistingsystem(>200ms)

LARContents(PSAIs) 30

  • TheLARwilladdressthefollowingRadICS PlatformSERProjectSpecificAction Items(PSAIs):

- PSAI7.4-PlantSpecificEquipmentEnvironmentalQualification

  • Theapplicantorlicenseemustdemonstratethatthegenericqualification envelopeestablishedfortheRadICS platformboundsthecorrespondingplant specificenvironmentalconditionsforthelocation(s)inwhichtheequipmentis tobeinstalled.

- PSAI7.4.1-PlantSpecificTemperatureandHumidityQualification

  • Theapplicantorlicenseeshouldensurethatspecificequipmentconfiguration ofRadICS componentstobeinstalledisconsistentwiththatoftheRadICS equipmentusedforenvironmentalqualificationtests.

- PSAI7.4.2-PlantSpecificClass1EtoNonClass1EIsolation

  • TheapplicantorlicenseeshouldensurethatallRadICS interfacesbetween1E andNon1Ecircuitsdonotexceedthemaximumtestvoltagestowhichthe RadICS equipmentisqualifiedtooperate.

LARContents(PSAIs) 31

  • TheLARwilladdressthefollowingRadICS PlatformSERProjectSpecificAction Items(PSAIs):

- PSAI7.4.3 ElectroMagneticCompatibility

  • Theapplicantorlicenseeshouldensurethatspecificequipmentconfiguration ofRadICS componentstobeinstalledisconsistentwiththatoftheRadICS equipmentusedforEMCqualificationtests.

- PSAI7.4.4 SeismicQualification

  • Anapplicantorlicenseereferencingthetopicalreportmustdemonstratethat thequalifiedseismicwithstandcapabilityoftheRadICS platformboundsthe plantspecificseismicwithstandrequirements.

LARContents(PSAIs) 32

  • TheLARwilladdressthefollowingRadICS PlatformSERProjectSpecificAction Items(PSAIs):

- PSAI7.5 FailureModesandEffectsAnalysis

  • Anapplicantorlicenseereferencingthetopicalreportmustperformasystem levelFMEAtodemonstratethattheapplicationspecificuseoftheRadICS platformidentifieseachpotentialfailuremodeanddeterminestheeffectsof each.

- PSAI7.6 ApplicationSpecificSystemReliability

  • Anapplicantorlicenseereferencingthetopicalreportshouldperforma systemlevelevaluationofthedegreeofredundancy,diversity,testability,and qualityprovidedinaRadICS platformbasedsafetysystemtodetermineifthe degreesprovidedarecommensuratewiththesafetyfunctionsbeing performed.

LARContents(PSAIs) 33

  • TheLARwilladdressthefollowingRadICS PlatformSERProjectSpecificAction Items(PSAIs):

- PSAI7.7 SetpointMethodology

  • Anapplicantorlicenseereferencingthetopicalreportmustperformananalysis ofaccuracy,repeatability,thermaleffectsandothernecessarydataforusein determiningthecontributionoftheRadICS platformtoinstrumentation uncertaintyinsupportofsetpointcalculations.

- PSAI7.8 SystemTestingandSurveillance

  • Theapplicantorlicenseereferencingthetopicalreportmustestablishperiodic surveillancetestingnecessarytodetectsystemfailuresforwhichautomatic detectionisnotprovided.

LARContents(PSAIs) 34

  • TheLARwilladdressthefollowingRadICS PlatformSERProjectSpecificAction Items(PSAIs):

- PSAI7.9 DiversityandDefenseInDepthAnalysis

  • Anapplicantorlicenseereferencingthetopicalreportmustperformaplant specificD3analysisforsafetyprotectionsystemapplicationsoftheRadICS platform.

- PSAI7.9.1-SelfDiagnosticsDesignRequirements

  • ThelicenseemustestablishrequirementsforvalidationtestingofTypeIIIself diagnosticsfeaturestoensureplantsafetyrequirementsaresatisfied.

LARContents(PSAIs) 35

  • TheLARwilladdressthefollowingRadICS PlatformSERProjectSpecificAction Items(PSAIs):

- PSAI7.9.2-PlantSpecificFailSafeBehaviorRequirementsDefinition

  • FailSafestaterequirementsshallbeestablishedbythelicenseeforallRadICS systemoutputstoensureplantsafetyisachievedwhenRadICS systemlogic failures(e.g.,TypeI,II,orIIIfaults)aredetectedbysystemselfdiagnostic functions.

- PSAI7.9.3-ConservationofExistingDiversityMeasures

  • Theapplicantorlicenseemustconfirmthatdiversityattributesoftheexisting protectionsystemarepreservedintheupgradedsystem.

LARContents(PSAIs) 36

  • TheLARwilladdressthefollowingRadICS PlatformSERProjectSpecificAction Items(PSAIs):

- PSAI7.10- Communications

  • Anapplicantorlicenseereferencingthetopicalreportmustevaluatethe RadICSplatformbasedsystemtoverifyitfullysatisfiesthecriteriaofDI&CISG 04asapplicable.

Nosafetyrelatedcommunications,safetyrelatedtononsafetyrelated communications(MATS)evaluatedintheRadICS PlatformSER.

- PSAI7.11 IEEEStd.603

  • Anapplicantorlicenseeshoulddemonstratethattheplantspecificand applicationspecificuseoftheRadICSplatformsatisfiestheapplicableIEEEStd.

6031991clausesinaccordancewiththeplantspecificdesignbasisandsafety systemapplication.

LARContents(PSAIs) 37

  • TheLARwilladdressthefollowingRadICS PlatformSERProjectSpecificAction Items(PSAIs):

- PSAI7.12 IEEEStd.74.3.2

  • Theapplicantorlicenseeshoulddemonstratethattheplantspecificand applicationspecificuseoftheRadICS platformsatisfiestheapplicableIEEEStd.

74.3.22003clausesinaccordancewiththeplantspecificdesignbasisand safetysystemapplication.

- PSAI7.13 SecureDevelopmentandOperationalEnvironment

  • Anapplicantorlicenseereferencingthetopicalreportforasafetyrelated plantspecificapplicationshouldensurethatasecuredevelopmentand operationalenvironmenthasbeenestablishedforitsplantspecificapplication, andthatitsatisfiestheapplicableregulatoryevaluationcriteriaofRG1.152, CriteriaforUseofComputersinSafetySystemsofNuclearPowerPlants.

LARContents(PSAIs) 38

39 VendorOversightPlan

  • TheVOPisacriticalpartoftheProjectQualityManagementPlan(QMP):

IncorporatesLessonsLearnedfromNRC'sreviewandapprovalof WaterfordCoreProtectionCalculatorlicense amendmentandongoing NRCreviewofLimerickDigitalModernizationProgramLAR LeveragesexistingConstellationQualityAssurance(QA),Engineering,and ProjectManagementprocessesforoversightofCurtissWrightDSS development EnsureshighqualityvendorproductsthroughQAprogram,Project Management,andEngineering implementingprocedures IncludesNRCacceptancecriteriaprovidedtoindustry,adaptedforproject use Performsvendorsurveillancesaspartofoversightactivities ConfirmsCurtissWrightandRPCRadicsLLCarecomplyingwithNRC reviewedRadICS SystemDevelopmentProcess VendorOversightPlan 40

41 SelectRegulatoryTopics

  • RadICS PlatformTRsubmittedforNRCreviewonSeptember20,2016 (ML16274A346)
  • SafetyEvaluationReport(SER)forRevision1oftheRadICS Platform TR issuedbytheNRConJuly31,2019(ML19134A291ProprietaryVersion andML19134A193NonproprietaryVersion)
  • Revision2oftheRadICS PlatformTopicalReportsubmittedonApril17, 2020(ML20118C317)

- AddedWideRangeAnalogInputModule(WAIM)

- AddedThermocoupleInputModule(TIM)

- AddedRTDInputModule(RIM)

- UpdatedLogicModule(LM)

- UpdatedAnalogInputModule(AIM)

  • SERforRevision2oftheRadICS PlatformTRissuedbytheNRConJune23, 2020(ML20166A002)

NRCApprovalofRadICS TopicalReport 42

  • LARwillincludeD3andCCFCopingAnalysisattachment
  • D3andCCFCopingAnalysiswillsatisfyRadICS PlatformTRPSAI7.9and 7.9.1through7.9.3asapplicable
  • ExistingECCSCLS&PAMSisanearlydigital systemimplementation

- SPEC200MICROincludessomefunctionsthataresolelyanaloganddo notutilizethemicroprocessorControlCard

- AllECCSCLSandPAMSfunctionsutilizethemicroprocessorControlCard andare"digital"functions

  • ReplacementECCSCLS&PAMSwillbeacompletelydigitalimplementation DiversityandDefenseinDepth(D3) 43
  • PAMSoutputs(ReferencePT16,Rev11)

- ReactorPressure,TypeA, PR/LR2(3)023 404A,PR2(3)023404B

- ReactorWaterLevel,TypeA, LR2(3)023110A,LR2(3)023110B

- TorusWater Temperature,TypeA, LR/TR8(9)123A,LR/TR8(9)123B

- TorusWater Level,TypeA, LR/TR8(9)123A,LR/TR8(9)123B,LI8(9)123AX,LI 8(9)123A

- DrywellPressure,TypeA, PR8(9)102A,PR8(9)102B DiversityandDefenseinDepth(D3) 44

  • ECCSCompensatedLevelSystemoutputs(perchannel)

- TripRCIC,HPCI,DFW,DEHC

- InitialRHR

- InitiateHPCI

- InitiateCS

- InitiateADS

- RHRValvePermit(ChannelsA&Bonly)

- CloseRecircValve

- ADSBypassTimer(ChannelsA&Conly)

- TripARI(ChannelsA&Conly)

  • CoincidencelogicperformedoutsideofECCSCLS DiversityandDefenseinDepth(D3) 45
  • ChangesforreplacementsystemwillbecoveredintheD3andCCFCoping Analysis
  • D3Analysiswill

- Definediversityanddefenseindepthstrategyforthe currentsystem

- Documenthowthereplacementsystemmeetsorexceedsthediversity anddefenseindepthrequirementsforthecurrentsystem DiversityandDefenseinDepth(D3) 46

  • ChangesforreplacementsystemwillbecoveredintheD3andCCFCoping Analysis
  • CCFCopingAnalysiswill

- DefinetheCCFCopingAnalysismethodologyforthecurrentsystem

- Documenthowthereplacementsystemmeetsorexceedsthe methodologyforthecurrentsystem CCFCopingAnalysis 47

48 Acronyms

Acronyms 49 ADS-AutomaticDepressurizationSystem AIM-AnalogInputModule AOM-AnalogOutputModule ARI-AlternateRodInsertion ARP-AlternateReviewProcess CCF-CommonCauseFailure CEG-ConstellationEnergyGroup CLS-CompensatedLevelSystem CPC-CoreProtectionCalculator CPLD-ComplexProgrammableLogicDevice CW-CurtissWright D3-DiversityandDefenseinDepth DEHC-DigitalElectrohydraulicControl DFW-DigitalFeedwater DIM-DigitalInputModule DI&C-DigitalInstrumentationandControl DOM-DigitalOutputModule DSS-DigitalSafetySystem EC-EngineeringChange ECCS-EmergencyCoreCoolingSystem EMIC-ElectroMagneticCompatibility EQTP-EquipmentQualificationTestPlan EQTR-EquipmentQualificationTestReport EQTS-EquipmentQualificationTestSpecification FMEA-FailureModeEffectsandAnalysis FPGA-FieldProgrammableGateArray FSC-FPGASafetyController HPCI HighPressureCoolantInjection I&C-InstrumentationandControl IDE-IntegratedDevelopmentEnvironment LAR-LicenseAmendmentRequest LM-LogicModule LTR-LicensingTechnicalReport M&D-MaintenanceandDiagnostic MATS-MaintenanceandTuningSystem NRC-NuclearRegulatoryCommission

Acronyms(cont.)

50 PAMS-PostAccidentMonitoringSystem PBAPS-PeachBottomAtomicPowerStation PCB-PrintedCircuitBoard PPC-PlantProcessComputer QA-QualityAssurance QMP-QualityManagementPlan RCIC-ReactorCoreIsolationCooling RHR-ResidualHeatRemovalSystem ROVT-RPCTOutputVerificationTool RPCT-RadiyPlatformConfigurationTool S&L-Sargent&Lundy SE-SafetyEvaluation SER-SafetyEvaluationReport SRS-SystemRequirementsSpecification TR-TopicalReport UFSAR-UpdatedFinalSafetyAnalysisReport VAC-VoltsAlternatingCurrent VDC-VoltsDirectCurrent VOP-VendorOversightPlan WAIM-WideRangeAnalogInputModule

51 ClosedPortion

  • ClosedMeeting

- ProjectOverview OverviewofCurtissWrightDigitalSafetySystem CurrentandProposedArchitecture

- SelectRegulatoryTopics

- Primer Agenda/OpeningRemarks 52

  • RedactedversionofthispresentationcontainsProprietaryinformation
  • Proprietaryinformationmarkingsarebasedupon

- ProprietaryinformationoftheRadICS Platform MarkingsbaseduponinformationmarkedasproprietaryintheRadICS Platform TopicalReport

- CurtissWrightDigitalSafetySystem InformationthatrevealsproprietaryCurtissWrighttechnicalorcommercial informationaboutimplementationofDigitalSafetySystemsingeneral ImplementationdetailsaboutthePeachBottomECCSCompensatedLevel Systemreplacementprojectthatcouldbeusedtodetermineproprietary CurtissWrighttechnicalorcommercialinformation

- Intheproprietaryeditionofthispresentation,brackets((()))denote proprietaryinformation.Inthenonproprietaryeditionofthis presentation,thematerialwithinthebracketsisremoved.

ProprietaryInformation 53

OverviewofCurtissWrightDigitalSafetySystem

- 10CFR50AppendixB,NQA1

- 10CFR21

- IEEEStd6031991

- RG1.152Rev3/IEEEStd74.3.2 2003

- RG1.53Rev2/IEEEStd3792000

- RG1.75Rev3/IEEEStd3841992

- RG1.209/IEEEStd3232003

- RG1.180Rev1

- IEEE10122004(RadICS Platform) 54

  • TheCurtissWrightDigitalSafety System(DSS)isimplementedby Curtiss Wrightundera comprehensiveQAprogramand SystemDevelopment Process thatsas"es:

- ((

))a,c,e

- RG1.170Rev1/IEEEStd8292008

- BTP714Rev5

- RG1.168Rev2/IEEEStd10282008

- RG1.169Rev1/IEEEStd8282005

- RG1.172Rev1/IEEEStd8301998

- RG1.171Rev1/IEEEStd10081987

- 10CFR73.54

  • TheCurtissWrightDigitalSafetySystemQAprogramisbasedupon

((

))a,c,e.

  • Governingdocuments

- QualityAssuranceManual(QAM)forScientechProductsandServices

- MeetsNQA12008/2009a

  • ((

))a,c,e

  • DefinesQAactivitiestoverifycompliancetoallregulatoryrequirements CurtissWrightDSSQAProgram 55
  • CWDSSSystemDevelopmentProcess(describedinlaterslides)isbased upon

((

))a,c,e.

  • ComposedofasetofQualityProceduresandWorkInstructions
  • Definesdevelopment/validationprocessthatmeetsallregulatory requirements CurtissWrightDSSSystemDevelopmentProcess 56
  • TheECCSCompensatedLevelprojectwillbealikeforlike functional replacementofthecurrentsystem.
  • Thefollowingsummaryispreliminarypendingcompletionofdetailed design.
  • ((

))a,c,e ProposedArchitecture 57

  • Replacementsummary:

- ((

))a,c,e ProposedArchitecture 58

EquipmentReplacement Cabinet20C722A/B(PAMS) 59

EquipmentReplacement Cabinet20C818A/C(ECCS) 60

EquipmentReplacement Cabinet20C819B/D(ECCS) 61

  • Newfunctionalityaddedaspartofthereplacementsystem:

- ((

))a,c,e ProposedArchitecture 62

  • ((

))a,c,e ProposedArchitecture 63

ProposedArchitecture(SafetySystem) 64

((

))a,c,e

ProposedArchitecture(MATS) 65

((

))a,c,e

ProposedArchitecture(RadICS) 66

((

))a,c,e

67 SelectRegulatoryTopics

  • RadICS PlatformComponentsUtilizedforthePeachBottom ECCSCompensatedLevelSystem/PostAccidentMonitoring Systemare:

- ((

))a,c,e NRCApprovalofRadICS TopicalReport 68

  • The RadICS Platformchassisand electronicmodulesutilizedwillbe the samePartNumberandElectronicDesignasthosereviewedbytheNRC in TRRevision1andRevision2
  • ((

]

]a,c,e TRApplicabilityforPBAPSECCSCLS&PAMSSpecificApplication 69

  • WillconsistofcomponentsthatwillbequalifiedbyCurtissWright(a combinationorpreviouslyqualifiedcomponentsandcomponentsqualified specificallyfortheECCSCLS&PAMSproject)
  • ((

))a,c,e NonRadICS PlatformEquipment/Components 70

  • ((

))a,c,e EquipmentQualification 71

  • ((

))a,c,e EquipmentQualification 72

  • ((

))a,c,e EquipmentQualification 73

74 Primer

CurtissWrightSystemDevelopmentProcess 75

- ((

))a,c,e

- ((

))a,c,e

  • TheSystemDevelopmentProcessthatisdescribedintheTRincludes thefollowingstages:

CurtissWrightSystemDevelopmentProcess 76

((

))a,c,e

77 SoftwareLifeCycle(Development,Part1)

((

))a,c,e

78 SoftwareLifeCycle(Development,Part2)

((

))a,c,e

79 SoftwareLifeCycle(V&V,Part1)

((

))a,c,e

80 SoftwareLifeCycle(V&V,Part2)

((

))a,c,e

RadICS FPGASafetyController(FSC) 81

((

))a,c,e

RadICS FPGASafetyController 82

((

))a,c,e

  • LogicModule

- ((

))a,c,e RadICS FPGASafetyController 83

RadICS FPGASafetyController 84

((

))a,c,e

  • I/OModules

- ((

))a,c,e RadICS FPGASafetyController 85

RadICS FPGASafetyController 86

((

))a,c,e

  • ((

))a,c,e OverviewoftheRadICS Platform 87

  • ((

))a,c,e FPGATechnology 88

  • ((

))a,c,e FPGATechnology 89

  • FPGAAttributes

-((

))a,c,e FPGATechnology 90

  • ((

))a,c,e OverviewoftheRadICS Platform 91

  • ((

))a,c,e OverviewoftheRadICS Platform 92

  • ((

))a,c,e OverviewoftheRadICS Platform 93

RPCTExample(EquipmentConfiguration) 94

((

))a,c,e

RPCTExample(UserApplicationLogic) 95

((

))a,c,e

RPCTExample(MonitorDisplayScreen) 96

((

))a,c,e

RPCTExample(DiagnosticDisplayScreen) 97

((

))a,c,e

RPCTExample(DiagnosticDisplayScreen) 98

((

))a,c,e

RPCTExample(DiagnosticDisplayScreen) 99

((

))a,c,e

100 ConcludingRemarks

  • ConstellationisreplacingtheECCSCompensatedLevelSystemwithCurtiss WrightRadICS platformwithanApril2025LARsubmittal
  • ProposeddesignislimitedinscopesimilartoWaterfordUnit3CPCS ReplacementLAR,i.e.,

- PlantoreusefieldcablesandminimizeimpacttoCSRfootprint

- NochangestoMCRinterface

- Nochangestocoincidencelogic

- Nochangestechnicalspecifications

  • LicensingapproachwillincorporatelicensingprecedentandrecentdigitalLAR lessonslearned
  • ConstellationcurrentlyperformingvendoroversightofCurtissWright
  • InstallationofRadICS platformsscheduledforOctoberoutages,P2R26(year 2026)andP3R26(year2027)
  • ConstellationispursuingLARapprovalfromNRCbyJune2026toalignwith Constellationoutagemilestones Summary 101
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