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www.nek.si
Naslovnica
ÚJV Řež – May, 2019
Overview of theNEK Equipment QualificationPrograms
30’
ABOUTNEK
NEKEQprograms,UJVRež,2019
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• Owners: GENEnergija 50%HEP50%• Operator: NEK• NSSSSupplier: Westinghouse• ReactorType: PWR• ConstructionPermit: 1975• CommercialOperation: 1983• OperatingLicence: 40‐60years• GrossPlantOutput: 727MW
ABOUTNEK
NEKEQprograms,UJVRež,2019
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HE(HydroPower)=4.293GWh
TE(FossilPower)=4.400GWh
NEK=5.423GWh*
Total =14116GWh
NEK shareinSlovenia inproductionofelectricalenergy
Source:ELES,MonthlyReportonthePowerSystemforDecemberandyear2016,January2017
NEK38,4 %
TE 31,2 %
HE 30,4 %
NEKEQPROGRAMSHISTORICALBACKGROUNDANDDEVELOPMENT
NEKEQprograms,UJVRež,2019
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Construction designrequirements:
• EnvironmentalQualificationofElectricalandI&C(EQ)ReactorBuildingDBAequipmentshallbequalifiedtoIEEE323‐1971andIEEE323‐1974–NOFORMALPROGRAM
• SeismicDesign– SeismicCategoryImechanicalandelectricalequipmentfortheKRSKONuclearPowerPlantshallmeetseismicperformancerequirementsduringandfollowingtheOPERATINGBASIS EARTHQUAKE(OBE),SAFESHUTDOWNEARTHQUAKE(SSE)
ReactorBuilding(RB) Intermediate
and TurbineBuilding(IB,TB)
AuxiliaryBuilding(AB) EQ
NEKEQPROGRAMSHISTORICALBACKGROUNDANDDEVELOPMENT
NEKEQprograms,UJVRež,2019
Slide05/27
NEKEnvironmental Qualification programfor Electrical and I&Cequipment:
‐ FirstPeriodic Safety Review (PSR1)– 2005actionplan
‐ Slovenian Nuclear Regualtory Body ruleJV5 „Rulesonradiationandnuclearsafetyfactors“
NEKCURRENTQUALIFICATIONPROGRAMSOVERVIEW
NEKEQprograms,UJVRež,2019
Slide06/27
EQPROGRAMFORELECTRICALANDI&C EQUIPMENT
NEKEQProgramdocument:
1. ED‐12consistentwith10CFR50.49
2. ED‐12definesmethodologyandcriteriaforEQconditionsdetermination(EQzones)
3. ED‐12methodologyandcriteriaforEQMELinEQSELlists
4. Programdefinesqualificationprocess:• Methodsforqualificationand
documentation• Processcontrol(designchanges,
maintenance,purchasing)
NEKCURRENTQUALIFICATIONPROGRAMSOVERVIEW
NEKEQprograms,UJVRež,2019
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NEKEQPROGRAMFORELECTRICALANDI&C EQUIPMENT
EnvironmentalconditionsduringandafterDBA:• LOCA• MSLB(MainSteamLineBreak)• HELB(HighEnergyLineBreaks):T>93.30Corp>2.0MPa
(forexampleCVCSletdown,SGBD)
Analyses:• T/H:RB,IB,AB:T,pandRH• DoseratesandTIDs:RB,AB(forexampleRHsump
recirculation),IB
Harshconditionssignificantlymoreseverethannormaloperatingconditions:
• Temperature:8,30C(150F)abovenormal/designT
• Pressure:10%abovenormal/design(10kPa– 1,47psi)
• RH:100%RHwithcondensation
• ChemicalSpray‐ exposure
• Submergence– exposure
• RadiationTID>100Gy;>10Gyforelectronics
NEKDBAEQconditions:
NEKCURRENTQUALIFICATIONPROGRAMSOVERVIEW
NEKEQprograms,UJVRež,2019
Slide8/27
EQPROGRAMFORELECTRICALANDI&C EQUIPMENT
EQZoneMapsdocument
• EQconditionsdefinedforeveryevaluatedroom:
• DefinedHarsh/MildlocationsendcorrespondingenvelopingEQzone:
NEKCURRENTQUALIFICATIONPROGRAMSOVERVIEW
NEKEQprograms,UJVRež,2019
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EQPROGRAMFORELECTRICALANDI&C EQUIPMENT
EQequipmentlist
EQMasterEquipmentList(EQMEL)components:• ElectricalandI&Cequipment:
• Safety‐related;• Non‐safety‐relatedthataffectssafety‐
related;• Certainpost‐accidentmonitoring(RG1.97
Category1in2)• LocatedinHarshenvironmentandperformDBA
safetyfunction
NEKCURRENTQUALIFICATIONPROGRAMSOVERVIEW
NEKEQprograms,UJVRež,2019
Slide10/27
EQPROGRAMFORELECTRICALANDI&C EQUIPMENT
EQMELequipmentlist(typical):
‐Pumpselectricmotors,‐VAfancoolerselectricmotors‐MOVs‐Limitswitches‐Electricalpenetrations‐Pressuretransmitters(LT,PT,FT)‐RTDs,TCs‐Pressureswitches‐RMdetectors/monitors‐Solenoidvalves‐MCCDs‐H2recombiners (replacedwithPARs)‐Transformers,‐Selectorswitches
NEKCURRENTQUALIFICATIONPROGRAMSOVERVIEW
NEKEQprograms,UJVRež,2019
Slide11/27
EQPROGRAMFORELECTRICALANDI&C EQUIPMENT
EQSupportingEquipmentList(EQSEL)– entirefunctionalloopshallbequalified
Typicalsupportingequipment:
• Cables– BIW,Rockbestos,Okonite,GeneralCable
• Wires– FWIIISIS,FLAMETROL• Heat‐shrinkin‐linecablesplices‐
TYCO/RAYCHEM• Terminalblocks– MARATHON• SealingTapes– Graphoil,Locktite• Connectors– EGSQualtech,Conax• SealingCompounds– DOW
CORNING,NAMCO
QualTech QDCconnector
NEKCURRENTQUALIFICATIONPROGRAMSOVERVIEW
NEKEQprograms,UJVRež,2019
Slide12/27
EQPROGRAMFORELECTRICALANDI&C EQUIPMENT
Qualificationdocumentation– EQMS
• Testreports(EnvironmentalQualificationReport)
• NEKQualificationevaluations ‐ EPRIEQ managementSoftware (EQMS):
EQEnviroments
EQMEL
GQEPQE+SCEW
NEKCURRENTQUALIFICATIONPROGRAMSOVERVIEW
NEKEQprograms,UJVRež,2019
Slide13/27
Qualificationdocumentation– EQMSPlantQualificationEvaluation Module(PQE):
ThermalAging– qualifiedlifecalculation:
PAOTprofilesareacomparison– margincalculation:
EQPROGRAMFORELECTRICALANDI&C EQUIPMENT
NEKCURRENTQUALIFICATIONPROGRAMSOVERVIEW
NEKEQprograms,UJVRež,2019
Slide14/27
EQPROGRAMFORELECTRICALANDI&C EQUIPMENT
Otherqualificationdocuments:
EQblockdiagrams:
NEKCURRENTQUALIFICATIONPROGRAMSOVERVIEW
NEKEQprograms,UJVRež,2019
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EQPROGRAMFORELECTRICALANDI&C EQUIPMENT
Otherqualificationdocuments:
EQWorkmanshipstandard (EQWS):
EQFieldConfigurationDrawings
EQFieldConfigurationPartsList
NEKCURRENTQUALIFICATIONPROGRAMSOVERVIEW
NEKEQprograms,UJVRež,2019
Slide16/27
EQPROGRAMFORELECTRICALANDI&C EQUIPMENT
EQactivities: EQlabeling:Hotspots determination:• Temperature• Gammaandneutron
radiation
Controloverplantprocesses:‐ Designchanges‐ Preventive
Maintenance‐ Procurement
NEKCURRENTQUALIFICATIONPROGRAMSOVERVIEW
NEKEQprograms,UJVRež,2019
Slide17/27
EQPROGRAMFORELECTRICALANDI&C EQUIPMENT
EQoverallprocess
QualificationInputs:
Qualification test report(Manufacturer/Model)
Equipment:‐ Location (Normal and
DBA environment)‐ Safety function‐ PAOT
Manufacturer/Model
EQMS qualification (PQE):
‐ Qualified Life‐ EQ configuration‐ EQ maintenance‐ Procurement
requirements
EQ Block Diagram
EQ Workmanship Standard‐ Configuration requirements
(orientation, sealing, etc.)‐ Maintenance requirements
(periodic replacement equipment or part, periodic inspections, etc.)
EQ Label,Plant Information system equipment EQ designation
(EQ=YES)
QualificationEvaluation:
QualificationOutputs:
EQgroupisinvolvedwheneverEQequipmentisaffected:1) Replaced,2) Modified,3) De‐installed4) NewEQequipmentinstalled5) Environmentalconditionsaffected
‐ EQ Master Equipment ‐ EQ Supporting Equipment
NEWQUALIFICATIONREQUIREMENTSUNDERDEVELOPMENT
NEKEQprograms,UJVRež,2019
Slide18/27
SecondPeriodicSafetyReview(PSR2):
1. QualificationtoSevereAccidents– EquipmentSurvivabilityProgram
2. ActiveMechanicalEquipmentEnvironmentalQualification–MechanicalQualificationProgram
3. ElectromagneticCompatibilityQualification– EMCProgram
NEWQUALIFICATIONREQUIREMENTSUNDERDEVELOPMENT
NEKEQprograms,UJVRež,2019
Slide19/27EQUIPMENTSURVIVABILITY(DEC)
REGULATIONS:
Slovenianlegislation:„Rulesonradiationandnuclearsafetyfactors“requiresEquipmentSurvivability(ES)assessmenttoshowthatthereisreasonableassurancethattheequipmentandinstrumentationusedtomitigateandmonitorDesignExtendedAccidentConditions(DEC).ActisinaccordancewithIAEA,WENRArequirements.
IAEASafetyStandardSSR‐2/1„SpecificSafetyRequirements“Requirement20‐ Designextensionconditions:„Thesedesignextensionconditionsshallbeusedtoidentifytheadditionalaccidentscenariostobeaddressedinthedesignandtoplanpracticableprovisionsforthepreventionofsuchaccidentsormitigationoftheirconsequences“.
WENRASafetyReferenceLevelsforExistingReactors(2014)IssueF‐ DesignExtensionofExistingReactors:„TherearetwocategoriesofDEC:• DECAforwhichpreventionofseverefueldamageinthecoreorinthespentfuel
storagecanbeachieved;• DECBwithpostulatedseverefueldamage“.„…DEChavethecapacityandcapabilityandareadequatelyqualifiedtoper‐formtheirrelevantfunctionsfortheappropriateperiodoftime …“
NEWQUALIFICATIONREQUIREMENTSUNDERDEVELOPMENT
NEKEQprograms,UJVRež,2019
Slide20/27EQUIPMENTSURVIVABILITY(DEC)
NEKWENRAapproach:
IAEAandWENRAplantstatesdefinesenvironmentalqualificationandequipmentsurvivability→NEKSafetyUpgradeProjects(SUP) requirements:
without
significant fuel
degradation
with core
melt
Operational States
Design extension conditions
Normal operation (NO)
Anticipated operational occurrences
(AOO)
Design basisaccidents (DBA)
Accident conditions
NEWQUALIFICATIONREQUIREMENTSUNDERDEVELOPMENT
NEKEQprograms,UJVRež,2019
Slide21/27EQUIPMENTSURVIVABILITY(DEC)
DESIGNEXTENSIONCONDITIONSDECB
1) ThelimitingscenarioisSBOsequencewithPCFV,PAR actuation,mitigationactionsat24h:reactorcoredamage,Ex‐Vesselcorerelocation;AccidentmitigationscenariousingAHXinsevereaccident(spray,recirculationfromcontainmentsumpduringex‐vesselevent):conditionsinAB,IBbuildingatARHRequipment/pipinglocations
2) SGTR:radioactivereleasetoenvironment‐ conditionsinBB1,BB2,Yard3) SFPaccident:scenarioperIndustryGuidanceNEI12‐02‐ conditionsinFHB
NEWQUALIFICATIONREQUIREMENTSUNDERDEVELOPMENT
NEKEQprograms,UJVRež,2019
Slide22/27EQUIPMENTSURVIVABILITY(DEC)
EquipmentSurvivabilityElements
EquipmentSafetyFunctionandLocationAssessmentDECclassification:
• Detailedsafetyfunctiondescription‐ inwhichspecificplantstateequipmentwillbeused(normaloperation,abnormaloperation,DBA,DEC)– IfDECthancandidateforDECclassification
• Locationofequipment– isequipmentlocatedinHarshenvironment– IfYesthancandidateforDECclassification
• Temperature:8,30C(150F) abovenormal/designT• Pressure:10%abovenormal/design(10kPa– 1,47psi)• RH:100%RHwithcondensation• ChemicalSpray ‐ exposure• Submergence – exposure• Radiation TID>100Gy;>10Gyforelectronics
DECPAOTtimingisdetermined:1hour,1day,1month,1year
DECQualificationstandards:‐ ElectricalandI&C:IEEE323‐1974orlateredition,IEEEEQdaughterstandards(317,334,382,383,…)
‐ Mechanical:ASMEQME‐1,orqualificationofnon‐metallicmaterials
DEC A or DEC B
&
NEWQUALIFICATIONREQUIREMENTSUNDERDEVELOPMENT
NEKEQprograms,UJVRež,2019
Slide23/27EQUIPMENTSURVIVABILITY(DEC)
DECsystemsandqualification
Variouspost‐FukushimaSafetyUpgradeProjectsunderdevelopment:
• IndependentthirdDECDieselGeneratoradditionaltotwo100%redundantDBADGs– DECBequipment
• Floodprotectionupgrade• NewEmergencyControlRoominDECBunkeredBuilding• PassiveContainmentFiltering&Ventilationsystem(PCFV)– DECBequipment
• PassiveAutocatalyticSystem(PAR)– DECBequipment• Containmentaccidentinstrumentation‐ DECA&B• Variousinstrumentslocatedinsystemsincontainmentbuilding(includingnewneutronfluxinstrumentationchannels)– DECA&B
• IndependentsystemfortheRCSpressurerelief(alternatePORV)‐DECAsystem
• ReactorCoolantandContainmentalternatecooling(ARH‐ACI)systemDECA&B
• AlternateSIandAF(ASI,AAF)systemsDECA&B• AlternatecoolingoftheSFP(HeatExchangers,SpraySystem)– DECAsystems
EquipmentSurvivability(underdevelopment)performedtorequiredlevelofconditions(DECAorDECBconditions).
NEWQUALIFICATIONREQUIREMENTSUNDERDEVELOPMENT
NEKEQprograms,UJVRež,2019
Slide24/27OTHER NEW QUALIFICATION PROGRAMS
ActiveMechanicalEquipmentQualification
• Newqualificationprogrambasedon:• EPRIEQReferenceManual• EPRINP‐3877QualificationofActiveMechanicalEquipmentforNuclearPlants
• NUREG0800StandardReviewPlanCh.3.11• RG1.100Rev.3(SEISMICQUALIFICATIONOFELECTRICALANDACTIVEMECHANICALEQUIPMENTANDFUNCTIONALQUALIFICATIONOFACTIVEMECHANICALEQUIPMENTFORNUCLEARPOWERPLANTS)endorsingASMEQME‐1(QualificationofActiveMechanicalEquipmentUsedinNuclearPowerPlants)
• MEQMELdevelopment:DBAandDECequipment;Safetyfunction;PAOT;Location(NormalandHarshenvironmentconditions)
• Qualificationassessment: Based onavailablequalificationtestreportsorbasedonevaluationofnon‐metallicmaterials(EPRIreportsandCurtissWrightPowerSuiteEQapplications)
• Documentationpackages(similarapproachasEQ);correctiveactions• Preservingqualifiedstatus:controlofmaintenance,modificationsandprocurementprocesses
NEWQUALIFICATIONREQUIREMENTSUNDERDEVELOPMENT
NEKEQprograms,UJVRež,2019
Slide25/27OTHER NEW QUALIFICATION PROGRAMS
EMCQualificationProgram
• Newqualificationprogrambasedon:• USNRCRegulatoryGuide1.180
• Guidanceapplicabletoallnewsafetyrelatedsystemsormodificationstoexistingsafetyrelatedsystemscontaininganalog,digitalorhybrid(combined)electronicsequipment
• EPRITR‐102323• DetailedtechnicalreportprovidingdetailsfromhistoricalbackgroundtorecommendedgenericEMIsusceptibilityandemissionstestlevelstobeusedinestablishingequipmentelectromagneticcompatibilityfornuclearpowerplantapplications
• ProvidesdefinitionofequipmentunderEMCscope:• EMCzones:highemissions(E);sensitiveequipment(S)includingexclusionzones
• SRI&CequipmentlocatedinEMCzones• ProvidesguidelinesandpracticalexamplesforEMC‐relateddocumentation
• Zonemapping hasbeenperformedtocaptureanemissionprofileoftheselectedarea.
• Administrativemeasures– definesexclusionsareaforwelding,useofportabletransceivers
• Implementationofpracticalnoisereductiondesignconsiderations• Qualificationsprocessrequiredandstartedfornewequipment/systems(includingSUP)
NEARFUTURETASKS
NEKEQprograms,UJVRež,2019
Slide26/27
• EQprogram/PlantLifeExtensionfrom40to60years(2023to2043)
• ElectricalPenetrationAssemblies,Cables,CableSplicesandothercommoditiesqualifiedlifeextension(ReanalysisperNUREG‐1801,qualificationtestingforlifeextension)
• Obsoleteequipment– newqualifications
• TocompleteEquipmentSurvivability• TocompleteMEQprogram• TocompleteEMCprogram
• PSR3???
Naslovnica
Thankyou!
www.nek.si
NEK EQ presentation
40’
NEKEQprograms,UJVRež,2019
Slide27/27