ML17264A189
ML17264A189 | |
Person / Time | |
---|---|
Site: | Ginna ![]() |
Issue date: | 08/07/1992 |
From: | DANIELS G W ROCHESTER GAS & ELECTRIC CORP. |
To: | |
Shared Package | |
ML17264A188 | List: |
References | |
PROC-920807, NUDOCS 9510160107 | |
Download: ML17264A189 (85) | |
Text
Guidelines forInstrument LoopPerformance Evaluation andSetpointVerification GinnaStationRochester GasandElectricCorporation 89EastAvenueRochester, NewYork14649EWR5126Revision1August7i1992Preparedby.Diels,Inst.Performance Verif.EngineerReviewedbyR.AeBaker, Inst.Performance Verif.Pro'ectManager~Ah~DateApprovedby~8(89C.AeForkell, ManaDateElectrical Engineering Pagei'P5i0160107 95i006PDRADOCK05000244PPDR REVXSZONSTATUSSHEETRevPagePageii GUXDANCEFORINSTRUMENT LOOPPERFORMANCE EVALUATION ANDSETPOINTVERIFXCATION SECTIONTITLETABLEOFCONTENTSPAGE1.02.03.04.05.06.07.08.09.09.19.29.310~0INTRODUCTION PURPOSEAPPLICABXLITY PROCEDURAL REQUXREMENTS DEFINITIONS ACRONYMSREFERENCES ASSUMPTIONS/CLARIFICATIONS INSTRUMENT LOOPPERFORMANCE REQUIREMENTS PERFORMANCE RELATEDDESIGNBASESASSOCXATED NITHTHEINSTRUMENT LOOPPROCESSPARAMETER DESCRIPTION ANDINSTRUMENT LOOPFUNCTIONENVIRONMENTAL SERVICECONDITIONS DESCRXPTXON OFTHEEXISTINGINSTRUMENT LOOPCONFIGURATION 2-14-15-17-18-19-19-19-19-310-110F110.210.310'PROCESSMEASUREMENT DATADOCUMENTATION OFSIGNALCONDITXONING ANDOUTPUTEQUIPMENT SCALINGPageiii10-210-310-4ORGANIZATION OFDATAANDDOCUMENTATION 10-1 GUIDANCEFORINSTRUMENT LOOPPERFORMANCE EVALUATION ANDSETPOINTVERIFICATION SECTIONTABLEOFCONTENTSTITLEPAGE11.011.111.211.312.012F112.212'EVALUATION OFTHEEXISTINGINSTRUMENT LOOPCONFIGURATION AGAINSTDOCUMENTED PERFORMANCE REUIREMENTS EVALUATING THELOOPCONFIGURATION EVALUATING THELOOPMEASUREMENT CAPABILITY EVALUATING THECALIBRATION EVALUATION OFLOOPUNCERTAINTY PROCESSMEASUREMENT UNCERTAINTY MEASUREMENT ANDTESTEQUIPMENT UNCERTAXNTY ACCXDENTSENSORENVIRONMENTAL UNCERTAINTY 11-111-111-311-312-112-112-112-212.412.512.612'12.812.912.1013.013.113.2RACKEQUIPMENT UNCERTAINTY SENSORUNCERTAINTY DRIFTUNCERTAINTY TOLERANCE UNCERTAINTY TOTALLOOPUNCERTAINTY COMPARING THEREFERENCE ACCURACYWITHTHECALIBRATION TOLERANCE SETPOINTEVALUATION ASSIGNING LIMITSTOOUTPUTDEVICESEVALUATING THESETPOINT(S)
Pageiv12-212-312-312-312-312-413-113-113-1ACCIDENTCURRENTLEAKAGEUNCERTAINTY 12-2 GUIDANCEFORINSTRUMENT LOOPPERFORMANCE EVALUATION ANDSETPOINTVERIFICATION SECTIONTITLETABLEOFCONTENTSPAGE13.3ATTACHMENT AATTACHMENT BCOMPARISON OFEXISTINGSETPOINTWITHTECHNICAL SPECIFICATION LIMITSCONCLUSION INSTRUMENT PERFORMANCE EVALUATION ANDSETPOINTVERIFICATION ORGANIZATION OFDATAANDDOCUMENTATION SUPPORT13-214-1Pagev
1.0INTRODUCTION
Thisdocument, Methodology forInstrument LoopPerformance Evaluation andSetpointVerification, providesdetailedinstructions forperforming Projectactivies.
Reg.Guide1.105,Rev.2describes amethodology acceptable totheNRCforensuringthatinstrument setpoints areinitially withinandremainwithinTechnical Specification limits.ThisRegulatory GuideendorsesISAStandardS67.04-1982, "Setpoints forNuclearSafety-RelatedInstrumentation Used,inNuclearPowerPlants".Arevisionwasissuedtothedocumentin1987andmajordraftsupplements havebeenissuedbyISACommittee S67.15sincethattime.RG&Eisnotspecifically committed toReg.Guide1.105orISA-S67.04.
Howeverthisdocumentisintendedtoestablish similarrequirements andutilizesthemethodsofISAS67.04whereapplicable.
Thisdocumentisnotintendedtosupersede anycalculations performed previously byRG&Eoritsvendors.Suchcalculations andanalyseswereperformed inaccordance withtheguidelines andassumptions ineffectatthetimeoftheirdevelopment.
Page1-1 2.0PURPOSEThisdocumentisintendedtoprovideRG&Eengineering personnel vithastep-by-step approachinperforming aninstrument loopperformance andsetpointverification.
Itincludesaverification that,afteralluncertainties inthemeasuredparameter areaccounted for,theexistingloopsetpoints assurethatalldocumented performance requirements aremet.Page2-2
3.0 APPLICABILITY
Thisdocumentmaybeappliedtoanyprocessinstrument laopatGinnaNuclearPowerPlant.Itisnotapplicable to:0000000Electrical MeteringTorque/Limit SwitchesSnubber/Spring CansTimeDelayRelaysProtective RelayingBreakerTripSettingsRelief/Safety ValvesPage3-1
4.0 PROCEDURAL
REUIREMENTS Workperformed inaccordance withthisdocumentshallbeperformed totherequirements oftheRG&EQAManualanditsappendices oranotherQAprogrammeetingtherequirements of10CFR50,AppendixB.page4-l.
DEFINITIONS 5.15'5.3AccidentBias-Thenon-random uncertainty createdbytheaccidentconditions inaknowndirection.
Anexampleofthiswouldbereference legheatupduringspecificpipebreakevents,whichcouldchangethedensityofthefluidinthereference leg,impacting theaccuracyofthesensor.AccidentEnvironmental Uncertainties AEU-Thecombinedeffectoferrorsonaninstrument loopcausedbyexposuretonuclearradiation, elevatedtemperature, andsteam/chemical spray,oranearthquake.
a~ccurac-Ameasureofthedegreebywhichtheactualoutputofadeviceapproximates theoutputofanidealdevicenominally performing thesamefunction.
Error,inaccuracy, oruncertainty represent thedifference betweenthemeasuredvalueandtheidealvalue.5e4Allowable ValueAV-Thelimitingvaluethatthetripsetpointcanhavewhentestedperiodically, beyondwhichtheinstrument channelmustbeevaluated foroperability.
(THEGINNATECHNICAL SPECIFICATIONS (TABLE35-4)DEFINETHETERM"ALLOWABLE VALUE"INTHESAMESENSEASTHEANALYTICAL LIMIT)5.55e6AnalticalLimitAL-Thelimitofameasuredorcalculated variable"established by"thesafetyanalysistoensurethatasafetylimitisnotexceeded.
Insomecasestheremaybenoanalysisassociated withaparticular setpointfunction.
Insuchcases,theDesignLimitestablished forthefunctionshallbeusedastheAnalytical Limit.AsFound-Thecondition adeviceisfoundinafteraperiodofoperation.
5e7As'Left-Thecondition adeviceisleftinaftercalibration.
5e8Bias-Forthisdocumentbiaswillhavetwoseparatedefinitions, oneforcalculating thesetpoint.
andtheotherforperforming scaling.Thedefinition forcalculating asetpointis:Thefixedorsystematic errorwithinameasurement.
Thebiaserrorisaknown,fixed,difference betweenthetruevalueandtheactualmeasurement.
Page5-1 0
Thedefinition relatedtoscalingis:5.95.10Avoltagethatisutilized'toproduceasignaloffset.Biasisoftenusedtocompensate forsignalsthatdonotbeginatzero.BiasDistribution
-Whenperforming scaling,thedivisionofthetotalbiasrequiredbyaninstrument loopamongthedeviceswhichcomprisetheloop.CableLeakaeCl-Theerrorassociated withleakagecurrentexhibited bytheinstrument cableduringenvironmental testing,oranaccident, ascorrelated tothespecified cableunderanalysis.
5.115.125.13Calibration
-Comparison ofitemsofmeasuring andtestequipment withreference standards orwithitemsofmeasuring andtestequipment ofequalorclosertolerance todetectandquantifyinaccuracies andtoreportoreliminate thoseinaccuracies.
Calibration Uncertaint CU-Thecombinederrorassociated withthetestequipment andmethodusedtodetermine thattheinstrument loopcalibration isincompliance withthereference standards CircuitLeakaeUncertaint CLU-Summation oftheerrorsassociated withtheelectrical currentleakagefromthecable,cablesplices,cablesealdevices,penetrations, andterminalblocks.5.14uncertainties, variables, orparameters relyupononeanother,suchthat,undertheconditions ofinterest, achangeinonewillproduceacorresponding changeintheother.5.15DesinLimit-Thelimitofameasuredorcalculated variableestablished topreventundesired conditions (e.g.,equipment orstructural damage,spurioustriporinitiation signals,challenges toplantsafetysignals,etc.).UsedinplaceoftheAnalytical Limitwhentherearenoanalytical bases.Basesmaybeindustrystandards orvendorrecomendations.
SeealsoEstimated DesignLimit.Page5-2 DriftSensorSd-Anundesired changeinoutputoveraperiodoftime,whichisunrelated totheinput,environment, orload.Note:Theuncertainty associated withdriftisdependent onthecalibration periodofthedevice.DriftUncertaint DU-Thecombinederrorassociated withthestability ofthesensorandrackequipment.
Theerrorsincludedinthistermarethesensorandrackequipment drift.uncertainties, variables, orparameters areautonomous anddonotrelyononeanother,suchthat,undertheconditions ofinterest, achangeinonedoesnotleadtoacorresponding changeintheother,andtheymaybeseparated onefromtheother.LimitinSafetSstemSettinLSSS-Settingsspecified forautomatic protective devicesrelatedtothosevariables havingsignificant safetyfunctions.
ALSSSischosentobeginprotective actionbeforetheanalytical limitisreachedtoensurethattheconsequences ofadesignbasiseventarenotmoreseverethanthesafetyanalysispredicted.
LooUncertaint
-Therangeofvaluesthattheprocessparameter mayassumecorresponding toaparticular indication oroutput.Depending ontheloopoutput,thisuncertainty couldberelatedtoindication oractuation.
LowerSetointLimit-Thelowestvalueforasetpointwhichwhenusedinconjunction withtheuppersetpointlimit,describes thesetpointtolerance band(noadjustment required) whichallowsforsafefunction,operation butminimizes thefrequency ofreadjustment.
Marcain-Anadditional allowance thatmaybeaddedtotheloopuncertainty forthepurposeofincreasing conservatism.
Applyingmarginhastheeffectofmovingasetpointfurtherawayfromtheanalytical limit.Note:Anadditional expression, operating margin,shouldnotbeconfusedwithmargin.Addingorincreasing operating.
marginhastheeffectofmovingasetpointclosertotheanalytical limittoincreasetheregionofoperation priortoreachingasetpoint.
Page5-3 MeasurinandTestEuimentM6TE-Devicesorsystemsusedtocalibrate, measure,gage,test,inspect,orcontrolinordertoacquireresearch, development, testoroperational dataorto.determine compliance withdesign,specifications, orothertechnical requirements.
Measuring andtestequipment doesnotincludepermanently installed operating equipment, nortestequipment usedforpreliminary checkswheredataobtainedwillnotbeusedtodetermine acceptability orbethebasisfordesignorengineering evaluation.
MildEnvironment
-Anenvironment thatwouldatnotimebemoreseverethattheenvironment thatwouldoccurduringnormalplantoperation, including anticipated operational occurrences.
Itmayalsobereferredtoasthenormalenvironment.
Normalization
-Theprocessofconverting processparameters intoquantities havingarangefrom0to1.0percentage units.0erational Limit-Theoperational valueofaprocessvariableestablished t'oallowtripavoidance marginforthelimitingnormaloperating transient.
Penetration LeakaePl-Theerrorassociated withtheleakagecurrentexhibited bythepenetration duringenvironmental testing,ascorrelated tothespecificpenetration underanalysis.
PimarElementSeealso.Sensor-Anindependently calibrated systemcomponent whichconvertsthemeasuredprocessvariabletoaformwhichisappropriate forthesensorinput.Thisisusuallyadifferential producerinafluidsystem,(i.e.orifice,venturinozzle),whichconvertsflowratetodifferential pressure.
Thedifferential pressureisthensensedbytransmitters (sensors).
PrimarElementAccuracPea-Theaccuracyassociated withtheprimaryelementthatquantitatively convertsthemeasuredvariableenergyintoaformsuitableformeasurement bytheassociated instrumentation, (i.e.ElbowTaps,orificeplates,venturies, etc.).Page5-4 5.30ProcessMeasurement AccuracPma-Theaccuracyspecification that,includesplantmeasurement errorsupto,butnotincluding, thesensor.Examplesaretheeffectoffluidstratification ontemperature measurements andtheeffectofchangingfluiddensityonlevelmeasurements.
5.32ProcessUncertaint PU-Thecombinederrorassociated withthephysicalprocessanditsmeasurement.
Theerrorsincludedinthistermaretheprimaryelementaccuracyandtheprocessmeasurement accuracy.
ProcessAlorithmorProcessEuation-Theprocesscalculation expressed intermsofengineering units.5.335.34~535RackEuimentUncertaint REU-Thecombinederrorsoftherack-mounted devicesthatmakeuptheinstrument loop.Thesetypically areaccuracy, temperature effects,andpowersupplyeffects.RackEuimentCalibration AccuracRca-Theerrorassociated withperformance ofrackequipment calibrations.
Thiserroristypically aresultoftestequipment accuracyandtechnician error.RackEuimentDriftRed-Anundesired change(error)intherackequipment outputoveraperiodoftime,whichisunrelated totheinput.5.36RackEuimentMiscellaneous EffectsRme-Theerrorassociated withanyeffectontherackequipment notaccounted forinthedocumented rackeffectsofthisprocedure.
5.375.38RackEuimentTolerance Ret-IsequaltotheNoAdjustLimitsoftherackequipment andisdefinedastheallowance toaccountforthedifficulty ofmeasuring therackequipment calibration.
Itisafunctionoftherepeatability oftherackequipment.
RckPowerSulEffectsRs-Theerrorassociated withthepowersupplyvariation forwhichthespecificrackinstruments areutilized.
5.39RackTemeratureEffectsRte-Theerrorassociated withtheambienttemperature variations ofthespecificrackinstruments.
Thiserrorisnotincludedinthecalculation ifalreadyconsidered inthe"Temperature Effect"term.Page5-5 Radiation EffectRe-Theerrorassociated withthenormalradiation doseplusaccidentradiation exposureforthespecificinstrument.
Random-Thecondition inwhichthedeviation ofanobservation (measurement) fromanaccepted(true)valueisequallyexpectedtobepositiveornegative.
Thealgebraic signofarandomuncertainty isequallylikelytobepositiveornegativewithrespecttosomemedianvalue.Unlessspecifically statedotherwise, forthepurposesofthisdocumentrandomalsomeansapproximately normallydistributed.
RandomError-Errorswhichcannotbepredicted exceptonastatistical basis.Theyoccurwhollyduetochanceandcanbeexpressed byprobabilistic distribution.
Inmostinstrument applications, randomerrorsoccurwithafrequency thatapproximates anormaldistribution.
Forsuchdistribution, 954ofallerrorsfallwithin2standarddeviations ofthemean.Reference Accurac-Anumberorquantitythatdefinesamaximumforexpecteduncertainty whenadeviceisusedunderreferenced operating conditions.
SafetLimit-Thelimitonasafetyprocessvariablethatisestablished bylicensing requirements toprovideconservative protection fortheintegrity ofphysicalbarriersthatguardagainstuncontrolled releaseofradioactivity.
Theacceptability ofsafetylimitsisbasedonplantaccidentandtransient analyses.
ScalinEuation-Theequationthatconvertsprocessvariables fromprocess/engineering unitstotheequivalent voltagevalues.SealinDeviceLeakaeDl-Theerrorassociated withtheleakagecurrentexhibited bythecablesealingdeviceduringenvironmental testing,ascorrelated tothespecificsealingdeviceunderanalysis.
SeismicEffectSe-Theerrorassociated withthespecificinstrument whensubjected toseismicactivity.
SensorSeealsoPrimarElement-Thechannelelementwhichrespondsdirectlytothemeasuredprocessvariabletoproduceanelectricorpneumatic signalwhichistransmitted tocontrolandindication systems.SensorUncertaint SU-Thecombinederrorassociated withthesensoritself.Thesetypically areaccuracy, Page5-6 temperature effects,powersupplyeffectsandstaticpressureeffects.SensorCalibration AccuracSca-Theerrorassociated withtheperformance ofsensorcalibrations.
Thiserroristypically aresultoftestequipment accuracyandTechnician error.SensorMiscellaneous EffectSme-Theerrorassociated withanyeffectonthesensornotaccounted forintheotherdocumented sensoreffects.SensorPowerSulEffectSse-Theerrorassociated withthepowersupplyvariation forwhichthespecificsensorisutilized.
SensorStaticPressureSanShiftSss-Thechangeinthecalibration ofadifferential pressuredevicewhichoccurswhentheprocesspressureisappliedequallytoboththehighandlowpressureconnections.
SensorTemeratureEffectsSte-Theerrorassociated withtheambienttemperature variations ofthespecificsensor.Thiserrorisnotincludedinthecalculation ifalreadyconsidered inthe"Temperature Effect"Term.SensorTolerance St-IsequaltotheNoAdjustLimitofthesensorandisidentified astheallowance toaccountforthedifficulty ofmeasuring thesensorcalibration.
Itisafunctionoftherepeatability ofthesensor.~metoint-Apredetermined valueatwhichadevicechangesstatetoindicatethatthequantityundersurveillance hasreachedtheselectedvalue.SetointVerification
-Information whichidentifies thespecificfunctions tobeperformed byaninstrument loopofafacility, andthespecificvaluesorrangesofvalueschosenforcontrolling parameters asreference boundsfordesign.Thesevaluesmaybe(1)restraints derivedfromgenerally accepted"stateoftheart"practices forachieving functional goals,or(2)requirements derivedfromanalysis(basedoncalculation and/orexperiments) oftheeffectsofapostulated accidentforwhichaninstrument loopmustmeetitsfunctional goals.Page5-7 SliceLeakaeSl-Theerrorassociated withleakagecurrentexhibited bythecablespliceduringenvironmental testing,ascorrelated tothespecificspliceunderanalysis.
SteamChemicalSraEffectSCe-Theerrorassociated withthesteam/chemical sprayenvironment forthespecificinstrument.
TemeratureEffectTe-Theerrorofthespecificinstrument duringaHELBorLOCAthatisassociated withthetemperature asspecified intheRG&EUFSAR.TerminalBlockLeakaeTl-Theerrorassociated withleakagecurrentexhibited bytheterminalblocksduringenvironmental testing,ascorrelated tothespecificterminalblockunderanalysis.
Tolerance
-Abandestablished aroundadesiredvaluewithinwhichaninstrument's performance isconsidered acceptable.
Tolerances areestablished aboutspecificinstrument orloopoutputpointstodefinetheacceptable levelofperformance fortheinstrument orloopforgiveninputpoints.Tolerance Uncertaint TU-Thecombinederrorassociated withthedifficulty ofmeasuring thesensorandrackequipment duringcalibration.
Theerrorsincludedinthistermarethesensorandrackequipment tolerance.
TriSetointTs-Apredetermined levelatwhichabistabledevicechangesstatetoindicatethatthequantityundersurveillance hasreachedtheselectedvalue.'I"~whichthetruevalueofaparameter isknowntoexist.Forthepurposesofthisprocedure, uncertainties shallincludethebroadspectrumoftermssuchaserror,accuracy, bias,effect,etc.UerSetointLimit-Thehighestvalueforasetpointwhichwhenusedinconjunction withthelowersetpointlimit,describes thesetpoint.
tolerance band(noadjustment required) whichallowsforsafefunctionoperation butminimizes thefrequency ofreadjustment.
Estimated DesinLimitEDL-UsedinplaceofAnalytical LimitorDesignLimitwhennoformallydocumented basesarecurrently available forthelimitingvalueoftheprocessparameter.
Page5-8 60ACRONYMSAEALAPEAREATEAVBOPCCDCPCSEDBDDBEDLDR-DVMEEQEOPGDCHELBIEEEILWDXNPOXR-XSAAccidentEffectAnalytical LimitAccidentPressureEffectAccidentRadiation EffectAccidentTemperature EffectAllowable ValueBalanceofPlantControlled Configuration DrawingCalibration Procedure ConduitSealEffectDesignBasisDocumentDesignBasisEventDesignLimitDriftDigitalVoltmeter Equipment Environmental Qualification Emergency Operating Procedure GeneralDesignCriteriaHighEnergyLineBreakInstitute ofElectrical andElectronics Engineers Instrument LoopWiringDiagramInstitute ofNuclearPowerOperations Insulation Resistance Instrument SocietyofAmericaPage6-l.
LOCALSSSMCBM&TENRCNSSSOBEOLOPPEAPLSPMEPPCSPSRERGRG&ERTDSESLSPESRSSSSET/CTELossofCoolantAccidentLimitingSafetySystemSettingMainControlBoardMeasurement
&TestEquipment NuclearRegulatory Commission NuclearSteamSupplySystemOperational BasisEarthquake Operational LimitOverpressure EffectPrimaryElementAccuracyPrecautions, LimitsandSetpoints (Document)
ProcessMeasurement EffectProcessPlantComputerSystemPowerSupplyEffectReference AccuracyReadability Regulatory GuideRochester Gas&ElectricResistance Temperature DetectorSeismicEffectSafetyLimit,StaticPressureEffectSquareRootSumoftheSquaresSafeShutdownEarthquake Thermocouple Temperature EffectPage6-2 TIDTLUTotalIntegrated DoseTotalLoopUncertainty UFSAR-UpdatedFinalSafetyAnalysisReportURLUpperRangeLimitSelectedacronymsmayalsohaveanotherdefinition perthestandardabbreviation listintheGinnaQualityAssurance Manual.However,theacronymsshownarecommonnuclearindustrytermsandfor'hepurposesofthisdocumentwillrepresent themeaningshownhere.Page6-3 I
7.0REFERENCES
7.1Reg.Guide1.105,Rev2,"Instrument Setpoints forSafety-RelatedSystems".
7-2ISA-S67.04-1987,"Setpoints forNuclearSafety-RelatedInstrumentation".
7.3INPO84-026,Rev.1,"Setpoint ChangeControlProgram".
7.4ISA-S67.04 PartII,Draft9,"Methodologies fortheDetermination ofSetpoints forNuclearSafety-RelatedInstrumentation."
7.5RG&EEWR5126,"Instrument SetpointVerification",
dated8/31/89.7.6Title10,Part50oftheCodeofFederalRegulations (10CFR50),
asofJanuary1,1990.7.7R.E.GinnaNuclearPowerPlantUpdatedFinalSafetyAnalysisReportVolumesIthruVIII,Rev.4.7.8Procedure P-1,Rev.45,ReactorControlandProtection System.7.9Procedure P-2,Rev.28,ReactorCoolantSystemPrecautions andLimitations.
7.10Procedure P-3,Rev.15,ChemicalandVolumeControlSystem.7.11Procedure P-4,Rev.10,Precautions, Limitations andSetpoints Auxiliary CoolantSystem.7.12Procedure P-6,Rev.12,Precautions, Limitations andSetpoints NuclearInstrumentation System.7.13Procedure P-7,Rev.11,SafetyInjection System.7.14Procedure P-8,Rev.16,WasteDisposalSyst:em.7.15Procedure P-9,Rev.55,Radiation Monitoring System.7.16R.E.GinnaNuclearPowerPlantTechnical Specifications, AppendixAtoOperating LicenseNo.DPR-18(Amendment No.40),DatedSeptember 23,1990.7.17Deleted7.18R.E.GinnaNuclearPowerPlantSystemDescriptions (Training Department Handouts).
Page7-1 7.19Deleted7.207.21DeletedRG&EQualityAssurance Manual,AppendixA,QualityandSafetyRelatedListings, Rev.9.7.22RG&EQualityAssurance Manual,AppendixE,QualityAssurance ProgramforEQEquipment Replacements, Maintenance andAdditions.
7.23DELETED7.24RG&EDesignAnalysis(DRAFT),"FlowMeasuring ElementTechnical Evaluation".
Page7-2 e
8.0 ASSUMPTIONS
CLARIFICATIONS 8.1Theintentoftheseguidelines istoestablish astandardbasisforinstrument loopperformance evaluation andsetpointverification analysesforexistingprocessinstrument systemsatGinnaStation.8.2Information usedtoevaluateeachinstrument loopispreferrably obtainedfromcontrolled documents.
However,thismaynotalwaysbepossible.
Information fromuncontrolled sourcesshouldbedocumented sufficiently toestablish validity.
8.3Whendataconflicts occur,anassumption maybemadeastowhichofthesourcesiscorrect.Allsuchconflicts andthebasesforanyrelatedassumptions shouldbedocumented asopenitems.8.4TheInstrument Performance Evaluation andSetpointVerification Checklist, includedasAttachment A,providestheformatforindivualloopanalyses.
Supplemental calculations oranalysesmaybeneededtofullydocumentcertainfeaturesofloopperformance.
8.5Wheninformation neededtocompleteAttachment Aisabstracted fromanotherdocument, thatdocumentshallreferencedin theanalysis.
8.68.7Wheninformation isobtainedfromreferences thatarenoteasilyretrievable (e.g.vendordata,correspondence, purchaseordersorspecifications, etc.),copiesshouldbemadeoftheapplicable portionsofthereference.
CopiesshouldbeattachedtotheAttachment Aanalysis.
Wheninformation requested inAttachment Aisdetermined tobenotapplicable toaspecificloop,thestepshouldbemarked"N/A".itihil:"-ii'll'y--i:R-:---,'...-,,',:,i:::,,',;,,',:,1:...,,P1,
",",-',",',,:,,',
d':,:::::,',;,,tlN!:
oÃ4%%8ni'cx~p8e 3<'oper8x'ng'>pAenomen8.":~
~@%le':c'otic'em'8 ceiw.,'d'"'a~jrooi;:;ems',..oi:i
'ii'-'p':,,:xa';,:-.'."s,"oui:@:
.'e;,:;;,'ai resse.,xp4',
@%i::aOi'~~~YQiiilit'..,:":;:-Eiicjiii'ear'~ri j',~'f~QE>-.jPra'ced.
Page8-1
9.0 Instrument
LoopPerformance Requirements Theintentofthissectionistodocumenttheperformance requirements fortheinstrument loop,established inthedesignbasesfortheGinnaNuclearPlant.Performance requirements includethenatureoftheprocessparameter beingdetected, quantified, andtransmitted, (whatisbeingmeasured),
therangeandaccuracyoftheprocessparameter information thatisrequired(appropriate) fortheloopoutputs,andthephysicalenvironment(s) inwhichtheloopisinstalled, calibrated, andrequiredtooperate.Totheextentpossible, theserequirements shouldbedescribed withoutreference totheinstalled systemdesign.9.1Performance RelatedDesignBasesAssociated withtheInstrument Loop.9.1.1InSection5.1.1ofAttachment Adocumentthefollowing designbasisinformation whichplacesconstraints oninstrument, performance.
SafetyClassification Thesafetyclassifications established inAppendixAoftheGinnaStationQAManual,SafetyRelated(SR),SafetySignificant (SS),andNonSafety(NS),arebasedonfunctional considerations only.However,theydoindicatewhethertheloopiscriticaltosomeaspectofplantsafety.9.1.2NUREG0737/R.G.
1.979.1.3TheGinnaStationR.G.1.97designbasesaredocumented inTable7.5-1oftheUFSAR.Amoredetaileddescription oftheseloopsiscontained intheRG&Esubmittal totheNRC,datedMarch13,1992,"NUREG0737Supplemental 1/R.G.1.97:Comparison ofGinnaPostAccidentInstrumentation",
Attachment 3,Table1.AR.G.1.97instrument loopshouldconformwithperformance requirements statedintheRegulatory Guide,asqualified bystatusinformation ornotesinTable7.5-1andthe3-13-92NRCsubmittal.
Designrequirements relatedtophysicalseparation, humanfactors,andreliability ofpowersupplyarenotwithinthescopeofthisanalysis.
Environmental Qualification (EQ)Iftheinstrument loopisrequiredtofunctioninharsh(accident) environments itislistedintheGinnaStationQAManual,AppendixE,Attachment 1,(the10CFR50.49 list).Environmental datafortheinstrument component location(s) isdocumented inSection3.11oftheGinnaUFSAR.Thisinformation isalsointheappropriate component EQ(File)Package.TheEQdesignation isonlyusedforinstruments Page9-1 requiredtooperatein"harsh"environments (50.49list).Thisindicates thatperformance capability mustbedemonstrated bytest,inaccordance withIEEE323-1974.
Other("mildenvironment")
loopsmustdemonstrate capability toperformthroughout theirrangeof"normal"ambientoperating environments, butthereisnoregulatory requirement fortesting.SeismicCategoryThesafetyclassification oftheinstrument loopdoesnotdirectlyimplyaparticular
- category, sothatotherdesignbasisinformation mustbeusedtoestablish itsseismicclassification andperformance requirements.
Forloopsthataredesignated R.G.1.97,thereferences inSection9.1.3providetheseismicclassification (thiscoversmostoftheloopswithinthepresentprojectscope).Inaddition, loopswhichareidentified intheGinnaTechnical Specifications, Table3.5-1Protection SystemInstrumentation, Table3.5-2Engineered SafetyFeatureActuation Instrumentation shouldbedesignated SeismicCategory1onthebasisofIEEE279-1971, andGDC2ofAppendixAto10CFR50.Allotherloopsmaybedesignated eithernonseismic(NS),or"structural integrity only"ifaknownR.G.1.29,C.2concernexists.Theperformance requirements associated withinstruments classified asSeismicCategory1arenotcompletely definedintheGinnadesignbasis.PerAttachment 2oftheRG&E3-13-92submittal totheNRC(referenced in9.1.3),seismicqualification "i'sinaccordance withtheGinnaSeismicQualification Program"and"Seismicqualification atGinnaiscurrently beingresolvedunderUSI-A46".
Since1978RG&Epracticehasbeentoqualifynewfloor(orwall)mountedequipment toIEEE344-1975.
Howevermostinstrument racksandpanelswereinstalled duringplantconstruction andtherefore (becauseoftheacceptedpracticeatthattime)werenotseismically tested.RacksandpanelsforProtection SystemandESFASequipment havesubsequently beeninspected andmodifiedtoassureseismicintegrity ofanchorage andstructure.
Historical data(recognized byIEEE344-1987) hasbeenusedbySQUGtoestablish reasonable assurance thatA46plants,inwhichequipment adequately anchoredandconstructed, cansafelybeshutdownfollowing aSSE.Theseismicperformance requirement forSeismicCategory1equipment withinthescopeofthisanalysisshallbethatboththecomponents oftheloopandtheirsupportsorenclosures havedocumented seismiccapability.
Evaluation Page9-2 ofseismiccapacityversusdemandisnotwithinthescopeofthisanalysis.
Instrument accuracyhasnotbeenidentified asanissueintheA46programandtherefore seismicloopuncertainty willatthistimebecalculated forinformation only.Technical Specifications GinnaStationTechnical Specifications, Section3.5,Instrumentation Sstems,identifies certaininstrument loopswhichperformsafetyrelatedfunctions.
Thefollowing tablesidentifycriticalloopfunctions, theplantconditions whentheloopmustbeoperable, andtheminimumnumberofchannelsthatmustbeavailable forcontinued operation (LCOs).Table3.5-1Protection SystemInstrumentation Table3.5-2Engineered SafetyFeatureActuation Instrumentation Table3.5-3Accident, Monitoring Instrumentation Table3.5-5Radioactive EffluentMonitoring Instrumentation Table3.5-6Radiation AccidentMonitoring Instrumentation Periodictestintervals, whicharerelatedtoloopperformance, aregivenin,Table4.1-1MinimumFrequencies forChecks,Calibrations, andTestofInstruments.
Performance requirements forReactorProtection System(Trip)instrument loopsaredescribed indetailinSection2.0,SAFETYLIMITSANDLIMITINGSAFETYSYSTEMSETTINGS'erformance requirements forEngineered SafetyFeaturesinstruments islocatedinTable3.5-4,ENGINEERED SAFETYFEATUREACTUATION SYSTEMINSTRUMENTATION SETPOINTS.
Itshouldbenotedthatbothsetpoints and"allowable values"aregiveninthistable.Theterm"allowable value"inthiscontextisthesameas"analytical limit".Performance requirements forRadioactive EffluentMonitoring Instrumentation arestatedinTable3.5-5andalsoinSection3.9.1LiquidEffluents, (3.9.1.1.a) andSection3.9.2.3,Gaseous'Waste Treatment (3.9.2.7.6).
Performance requirements forControlRodPositionIndication SystemsarestatedinSection3.10.5,ControlRodPositionIndication Systems.Page9-3 GinnaStationUFSARSection7oftheGinnaUFSARdescribes designbasesforReactorProtection SystemandEngineered SafetyFeatureinstruments.
Xnstrument loopswhichinitiateReactorProtection andEngineered SafetyFeatureActuation actionscanbeidentified functionally fromTable7.2-1,LISTFORREACTORTRIPgENGINEERED SAFETYFEATURESACTUATION'ND CONTAINMENT XSOLATION.
Interlocks associated withtheseloopsarelistedinTable7.2-2,PERMISSIVE CIRCUXTS.
Performance requirements forReactorProtection systemsaredescribed inSection7.2oftheUFSAR.Performance requirements forEngineered SafetyFeatureActuation instruments aredescribed inSection7.3oftheUFSAR.Table7.3-1,ENGINEERED SAFETYFEATURESACTUATION SYSTEMXNSTRUMENTATION TRIPSETPOINTS, is(orshouldbe)identical withTechSpecTable3.5-4discussed in9.1.5.Instrumentation forSafeShutdown, andrelatedperformance requirements isdiscussed inSection7.4oftheUFSAR.SafeShutdowninstruments andlocations areshownbytransmitter numberonTable7.4-2,SAFESHUTDOWNINSTRUMENTS.
Performance requirements forSafetyRelatedDisplayInstrumentation aredescribed inSection7.5.Thissectiondiscusses theRG&EpositiononR.G.1.97Rev.3(See9~1.2).Performance requirements forcertainControlSystemsNotRequiredforSafetyaredescribed inSection7.7.Emergency Operating Procedures (EOPs)The"EOPDataBase"canbeusedtoidentifyinstrument loopswithoutput,(indication) requiredbyanEOP.SinceEOPswereoftenwrittenwithoutreference totheaccuracyoftheavailable indicator, criticalsupplemental studieshavebeenperformed oncertainloopstoestablish theperformance requirements andrelatethesetotheaccuracyoftheinstalled equipment.
Thesestudiesaredocumented as,DesignAnalysis, "Calculation ofEOPFootnotes",
NSL-4173-014, EWR4173,Rev.1.Thisinformation shouldbereferenced forapplicable loops.Forloopsthathavenotbeenanalyzedinthisreference, somejudgement regarding requiredaccuracymaybenecessary.
OtherDocuments Forinstrument loopsinstalled after1978,designcriteriadocumentation waspreparedwhichdefinedperformance requirements.
Page9-4 Loopspecificregulatory performance requirements mayexist.Whereknowntheseshouldbeaddressed.
9.2ProcessParameter Description andInstrument LoopFunctionInSection5.1.2ofAttachment, A,describetheprocessparameter beingmeasuredanditsanticipated rangeofvaluesundernormal,test(calibration),
andaccidentconditions.
Typicalvalue(s)fortheparameter duringnormaloperation aswellastheextremesofthe"normal"operating rangeshouldbedocumented.
Documentthefunctions oftheinstrument loopinSections4.0and4.1ofAttachment A.Bothcontrolandprotection modesofoperation shouldbedescribed evenifevaluation ofthecontrolapplication isnotcurrently underreview."WorstCase"boundingvaluesshouldclearlybedocumented.
Notethat.theintentofthissectionistodescribethevaluesthattheparameter can"takeon",nottheparameter values(limits)whichrepresent "safeoperation".
System"safeoperating" limitsaredocumented inthenextsection.Description ofSystemLimitsInSection5.1.3ofAttachment A,describethelimitswhichconfinetheprocessparameter (described in9.2)tovalueswhichassurethatnosystemdesignconstraints (e.g.Departure fromNucleateBoiling)areviolated.
TheselimitswillbeusedinSection10ofAppendixAtoevaluatetheinstrument loopperformance marginafteruncertainties areaccounted for;therefore thebasesforthelimit(s)mustbeclearlyunderstood anddocumented.
Anyuncertainty or"fuzziness" "intheselimitsshouldbenotedhere,sothatitcanbeconsidered inthefinalloopperformance evaluation.
Limitsshouldbedocumented as"analytical",
"design",
or"estimated design".ThesetermsaredefinedinSection5.0butrequiresomeelaboration.
Analytical LimitSafetyanalysessupporting "analytical limits"areperformed usingavarietyofmethods.IdeallytheSafetyAnalysisdemonstrates thatwhentheprocessparameter reachesthelimit,underspecified conditions, asystemdesignconstraint violation occurs.Oftenhowevertheanalysis, suchasanaccidentsimulation, hasbeenperformed assumingavalueforthelimit;andthevalidityofthelimitisbasedonthefactthatnodesignconstraints wereviolatedduringthesimulation.
Thelimitestablished usingthelatterapproachcanconservatively betreatedasifitwouldresultinconstraint violation, however,thereisandobviousmarginuncertainty introduced.
9.2.1.2DesignLimitPage9<<5 "Designlimit"shouldbeappliedtothoselimitswithoutadocumented analytical basis,butwhichuseanestablished valuetakenfromanindustrystandardorfromwellestablished'vendor literature.
9.2.1.3Estimated DesignLimit9.3"Estimated designlimit"shouldbeappliedwhenbasesfor9.2.1.1or9.2.1.2arenotavailable.
Thatis,somelimitmustbeprovidedtoevaluateinstrument performance andifnoexistingbasisisavailable, an"Estimated DesignLimit"willbeprovidedusingthebestavailable systemdata.Environmental ServiceConditions InSection5.2ofAppendixAthephysicalenvironment inwhichtheinstrument loopisinstalled, calibrated, andrequiredtofunctionisdocumented.
9'.1TheSensorEnvironment InSections5.2.1and5.2.2,identifythesensorlocationandtheenvironmental serviceconditions forcalibration, normaloperation, andifnecessary, accidentoperation.
Section3.11oftheGinnaUFSARprovidesenvironmental databasedonplantlocation.
ForEQ(50.49)sensors,theapplicable EEQ-1FormintheGinnaEQFiledefinestheboundingaccidentenvironmental conditions, andtheEQBlockDiagramshowsthelocationandassociated equipment.
Ifanyknownlocalized environmental conditions, moreseverethanthegeneralareaambient(hotspots)existneartheSensorlocation, theyareidentified ontheEQBlockDiagram.9.3.2Associated Equipment Environments 9-3.2.19'.2'Associated Equipment inHarshEnvironment Ifequipment otherthanthesensorisEQ(50.49)(e.g.cable,splices,connectors andpenetrations) itisidentified ontheEQBlockDiagramfortheloop.Thediagramidentifies theboundarybetweenharshandmildenvironments.
Documentharshenvironment conditions, temperature,
- pressure, humidityandchemicalspray,inSection5.2.4.2ofAppendixA.Associated Equipment inMildEnvironments Ifequipment isnotdesignated EQ(50.49),itisconsidered subjecttomildenvironment only.Temperature, radiation ifabovebackground (otherwise indicate"background"),"and humidityrangesshouldbedocumented inSection5.2.4.1ofAppendixA.Page9-6 10.0DESCRIPTION OFTHEEXISTINGINSTRUMENT LOOPCONFIGURATION Theintentofthissectionistoprovidedirection fordocumenting theconfiguration, operation, andcalibration oftheinstalled instrument loop,including applicable dimensional information, equipment capability andrangedata,environmental performance dataandtestreports,andcalibration andmaintenance procedures.
ThisdatawillbeusedinSection7.0ofAppendixAtocomparethecapability oftheinstalled loopwiththeperformance requirements documented inSection6.0ofAppendixA.Uncertainty datawillbedocumented inSection8.9'~gOQt."c~e~n&4AQ 10'10.2.1ProcessMeasurement DataPrimaryElementInformation Iftheinstrument loophasaprimaryelementsuchasanorificeorplatedifferential producerforflowmeasurement, identifythemanufacturer,modelnumber,sizeandspecificationsfortheelement.(@~jTh'e!',":;.;.'4IAf tBe'siq5::;:,:;:.':.::::.'::;fiick'lysis,"I "FlowMeasuring ElementTechni.cal yw'e,'.uceil:,""'THe upsreamanownstream pi.pingconfigurations shouldbereviewedforconformance withgooddesignpractice.
Documentthisinformation inSection6.1.1ofAttachment A.10.2.2SensorDataDocumentthesensor'smanufacturer andmodelnumberinSection6.1.2.1ofAttachment A.Alsolistthevendor'spublished rangeandspanlimitsofthesensor,including engineering units.Therangeshouldbeobtainedfromvendordatasheetsormanuals.Thespanshouldbeobtainedfromthecalibration procedure.
Spanandrangearedocumented in6.1.2.2ofAppendixA.10.2.3SensorEnvironmental LimitsForEQ(50.40)Sensors,usingappropriate EEQ-1s,reviewtheenvironmental limitswithinwhichtheinstrument isqualified tofunction.
Thisinformation, shouldincludepressures, temperatures, radiation, chemicalsprays,Page10-1
- humidity, andanyassociated timeperiods.Anyassumptions orconditions specified bythevendorforoperating withinaharshenvironment shouldalsobedocumented.
Thisinformation isalreadyavailable intheEQfile,andissummarized ontheEEQ-1formforthesensor.Itisreviewedanddocumented heretoassureacompletedescription ofinstrument loopperformance intheAttachment Achecklist.
Allothersensors(locatedinamildenvironment) shallbereviewedfortemperature effectsonly,unlesstheavailable vendorinformation identifies additional environmental constraints.
Thisinformation shouldbeenteredinSection6.1.3ofAttachment A.10.2.4Environmental LimitsonAssociated Equipment.
ReviewtheEQBlockDiagramfortheinstrument looptoassurethatcable,splices,connectors, penetrations, andanyotherequipment associated withthesensorandsubjecttoharshenvironment areshownandreferenced toappropriated EQpackage.DocumenttheEQBlockDiagramnumberinSection6.1.4ofAttachment A.Forinstrument loopssubjectonlytomildenvironment noreviewofassociated equipment isrequiredunlessspecialenvironmental constraints exist.10.310.3.1Documentation ofSignalConditioning andOutputEquipment SignalConditioning/Output DeviceInformation.
Foreachdevicewithinthescopeoftheanalysisprovidethemanufacturer andmodelnumber.Documenttherangeofthecomponent fromvendordata.Fromthecalibration procedure, providethespan,setpointand/orresetpoint.Theaboveinformation shouldbeenteredinSection6.2.1ofAttachment A.10'ScalingScalingistheprocessofmodifying aprimarymeasurement signaltoachieveadesiredinput-output
- response, appropriate toaspecificapplication, fromtheinfluidsystems),
functus.onal conversion toprovidealinearoutputfromanonlinear input(e.g.takingthesquarerootofdifferential pressuretoprovidealinearoutputproportional toflowrate),compensation forothertypesofnonlinear detectorresponse, temperature, correction, compensation fordensityandpressurePage10-2 effects,andengineering unitconversions.
Italsoincludesthealgebraic methodsusedtocombineinputsfrommorethanonesensortoprovideasingleoutput.Reference 25"NRCInformation Notice91-75",notesthatanumberofcasesofincorrect staticheadcompensation havebeenfoundincalibration procedures recently.
Specialattention shouldbeplacedonthiscorrection whenapplicable.
InSection6.3ofAttachment A,provideadescription of,thewaytheprocessparameter, documented in'Sections 5.1.1and5.1.2ofAttachment Aismeasuredandprocessed toproduceanoutputappropriate totheapplication andP,"I""Qi:,":::.i,,,i:...,:,,:,
.'i!,::,:;,,-,:
".i,.":,i,,',-ll,'",4%
Provideinformation inSection6.1.1ofAttachment A,PrimaryElementInformation and6.1.2ofAttachment A,SensorInformation, asappropriate.
Describeanycompensation requiredduetosensororassociated equipment locationwithrespecttotheprocessparameter ortoenvironmental effects.Reference shouldbemadetoexistingstudiesofcertainsystemssuchastheReactorVesselLevelMonitor,wherescalingprocesses havebeendocumented indetail,whenavailable.
Documentation ofUncertainty DataThissectionprovidesdirection fordocumenting instrument errordatatobeenteredinSections8.1through8.8ofAttachment A.ThesedatawillbeutilizedinSection10.0ofAttachment Atocalculate totalloopuncertainty.
AccidentUncertainty Theseerrors,randomandbiasing,areaddressed onlyforEQ(50.49)equipment.
Harshenvironment (accident) effectsonmostEQinstrument loopsareanalyzedinGenericReference 17,"Integrated SystemPerformance Page10-3 Analysis",
Attachment Bperformed byEPM.ThisstudyisbasedondetailedreviewoftestreportdataintheGinnaEQFile.Randomandbiasingerrorsarecalculated forsensorsandassociated equipment.
Thesestudiesshouldbeutilizedforaccidenterrordataoninstrument loopstowhichtheyapply.Estimates ofnon-accident relatederrorwheremadeinthesestudiestoprovideareasonable basisforevaluating instrument loopperformance duringtheDesignBasisEvent.Thenon-accident errorestimates shouldnotbeusedinthisanalysis.
InsomecasesEOPstudies,GenericReference 9,Attachment B,alsocalculated orobtainedaccidenterrors.Thesevaluesshouldbereviewedforconsistency.
WhenerrordataisobtainedfromEQtestsperformed inaccordance withIEEE323-1974, itisnotnormallypossibletoresolvetheuncertainty intoseparatetemperature,
- pressure, radiation, andsteam/spray effects.Acombinedaccidenterrorisusedinthiscase.Therandomcomponent ofthiserroriscalled"combined randomaccidenteffect"(Crae)andthesystematic orbiasingerroriscalled"accident bias"(AB).WhentheCraeisusedtherewillbeno"separate effects"uncertainty.
ThesedataareenteredinSection8.1.1ofAttachment A.Accidentrelateduncertainties producedinequipment associated withthesensor(cable,splices,penetrations) areassumedtobeduetocurrentleakageonly.Theassociated equipment isidentified ontheEQBlockDiagram,asdiscussed inSection9.3.2.Leakageeffectsaremodeledandcalculated inGenericReference 17,Attachment B.Currentleakagebiasestheinstrument loopoutputinonedirection, butthemagnitude dependsonunpredictable accidentconditions andmusttherefore beassumedtovaryfromzerotothecalculated maximum.Bothextremesshouldbeconsidered.
ThemaximumaccidentleakagebiaserrorisenteredinSection8.2ofAttachment A.Theseismicperformance requirements forGinnainstruments arediscussed inSection9.1.4.Seismicuncertainty dataandcalculations willbedocumented forpotential useduringA-46resolution.
Themainuseofseismicuncertainty dataatthistimeistoprovidereasonable assurance ofinstrument loopseismicintegrity.
Seismicerrormaybeprincipally duetothesensorormayinsomecasesinvolverackandoutputdeviceeffects.ThesedataareenteredinSection8.2ofPage10-4 J
Attachment A.10.5.2NonAccidentUncertainty 10.5.2.1ProcessMeasurement Uncertainty Basedonthedatafrom5.1.2ofAttachment A,provideanuncertainty estimateforthestateofthemeasuredparameter.
Possiblerangesoftemperature,
- pressure, chemicalcomposition, andflowrateshouldbeconsidered.
Ifmorethanoneeffectispresent,usesubscripts.
Ifaprimaryelementispresent,theuncertainty shouldbelistedinthedatasheet.RecordthesedatainSection8.3ofAttachment A.10.5.2.2Measurement andTestEquipment Uncertainty Theaccuracyofsensorandrackequipment calibration islimitedbytheaccuracyoftheequipment usedtoperformthecalibration procedure.
Themeasurement andtestequipment usedtocalibrate theinstrument, loopislistedinthecalibration procedure(s).
Obtainthetestequipment accuracyfromGenericReference 23,TestInstrument Calibration Procedures (TICP's).
Theappropriate TICP'sshouldbereferenced intheCalibration Procedure.
Testinstrument manufacturer datashouldbereviewedtoassurethattheequipment.
iscapableoftheaccuracyrequiredbytheTICP.Ifseveraltestequipment itemsareinvolvedappropriate subscripts shouldbeused.Usethesamerulesforcombining testequipment errorasareusedfortheinstrument loopitself.RecordthesedatainSection8.4ofAttachment A.10.5.2.3RackEquipment Uncertainty Theaccuracyofrackmountedequipment intheinstrument loopshouldbeobtainedfrommanufacturer's information orindividual component calibration procedures.
Iftheoutputdeviceisanindicator orrecorder, thereadability shouldbedocumented asaRackMiscellaneous Effect.Thereadability ofananalogindicator/recorder isbasedontheintervalbetweenscaledemarcations.
Theindicator/recorder scaledemarcations andcalibrated spandefinethereadability ofthedevice.Itisimportant todifferentiate betweenthereadability oftheindicator/recorder forcalibration purposesanditsreadability duringoperation.
Whencalibrating anPage,10-5 indicator/recorder, aninputtestsignalwillbeprovidedbyM&TEandthe"output"willbedirectlyreadfromtheindicator/recorder.
Noadditional M&TEisrequired.
Thisoutputisalignedonthescaledemarcations duringthecalibration process.Thus,thereadability oftheindicator/recorder duringcalibration arethesameasforaseparatepieceofM&TEifonewereused.Thisreadability isapartofthecalibration, justlikeanyothercalibration, andistypically apartoftheM&TEuncertainty orcalibration tolerance.
Foranindicator/recorder, however,thereisaseparatereadability thatmustbeincludedforitsusebyanoperator.
ForGinna,thereadability isdefinedasonehalfofthesmallestscaleincrement or1%fullscale,whichever isgreater.RE=1/2smallestscaledemarcation SensorUncertainty Thesensoruncertainty shouldbeobtainedfrommanufacturer's literature.
Zfseparateeffectssuchaslinearity, hysteresis, orrepeatability arelisted,theymaybeappropriately
- combined, withtheseparateeffectuncertainties documented inanote,ordocumented separately usingsubscripts, inSection8.6ofAttachment A.Nonaccidenttemperature effectsonthesensorthatarenotcompensated forintheinstrument designorscalingshouldbedocumented inSection8.6ofAttachment A.Anydesignfeatureswhichcompensate fortemperature uncertainty (e.g.4wireRTDcircuits) shouldbebrieflydescribed inafootnote.
Mostsensordesignsarestabilized againstsmallvariations inpowersupplyvoltage.Thisfeaturealsoprovidesflexibility inaddingorremovingloadsintheinstrument loops(e.g.bistables).
Whensuchfeatureseliminate sensorpowersupplyeffects,provideashortdescription ofthedesignfeatureandtheassociated loadlimits.Anappropriate reference canbeusedalso.Powersupplyeffectsaredocumented inSection8.6ofAttachment A.Accountforotheruncertainties (suchasconstruction tolerances) whichproduceerrorsinSection8.6ofAttachment A.Page10-6 10.5.2.5DriftTolerance Theexpectedorallowable timedependent changeininstrument calibration duringthecalibration intervalforsensorsandrackmountedequipment shouldbeobtainedfromthecalibration'rocedure anddocumented inSection8.7ofAttachment A.Whennoallowable driftisspecified inthecalibration procedure vendorinformation orplantmaintenance historymaybeused.10.5.2.6Tolerance Uncertainty Thecalibration procedures forsensorsandrackmountedequipment providetolerance bandstoreducecalibration timeasmuchaspossiblewithintheloopaccuracyrequirements.
Thistolerance bandrepresents arandomerrorandshouldbedocumented inSection8.8ofAttachment A.Page10-7 11.0EVALUATION OFTHEEXISTINGINSTRUMENT LOOPCONFIGURATION AGAINSTDOCUMENTED PERFORMANCE Section9.0addresses documenting theperformance requirements fortheinstrument loopandSection10.0addresses documenting theexistinginstrument loopdesign.Thissectionaddresses comparing theinformation fromthesetwosections.
Portionsoftheexistingcalibration procedure willbereviewed.
Theremaining portionsofthecalibration procedure, relatedtothesetpoints, areaddressed inSections12.0and13.0ofthisdocument.
11.111.1.1Evaluating theLoop'sConfiguration Conformance withPerformance Requirments Reviewtheperformance requirements documented perSection9.1fortheinstrument loop.Comparethesetotheexistingdesign,documented perSection10,toensurethatallofthecriteriaareaddressed andmet.Afterallperformance requirments areevaluated, provideaconclusive statement astowhethertheexistingdesignmeetstherequirments.
Identifyanyrequirements thatarenotmet.Documenttheevaluation inSection7.1.1ofAttachment A.11.1.2Performance ofSafetyRelatedandSafetySignificant Functions ReviewtherequiredSafetyRelatedandSafety.Significant functions (protection, control,indication) oftheloopdocumented inSections4.0and4.1ofAttachment A.Comparethesefunctions totheexistingloopdesigntoensurethatallfunctions areachieved.
Documenttheevaluation inSection7.1.2ofAttachment A.11'.3,Consistency ofInstrument LoopDocumentation InSection7.1.3ofAttachment A,describedocumentation consistency.
11'11.2.1Evaluating theLoopMeasurement Capability Evaluating theRange/Span Sections10.2.2and10.3.1ofthisdocumenttherangeandspanofthesensorandotherloopcomponents.
Page11-1 Section9.2.1ofthisdocumentaddresses thelimitsthatapplytothisloop.Ensurethatthecalibrated spansofthesensorandtheappropriate outputdevices(indicators, recorders, computerinputs,etc.)envelopeallofthespecified limit's.Documentthisevaluation inSection7.2.1ofAttachment A.Evaluating Setpoints andIndicated ValuesInSection7.2.2ofAttachment A,documentthesetpointandindicated valuewithrespecttospan.InSection7.2.3documenttheunitsofmeasure.Evaluating theCalibration Reviewing theCalibrated Components Reviewthecalibration procedure(s) fortheloopandensurethateachapplicable component isproperlycalibrated.
Thiscalibration shouldincludethesensor,allsafetyrelatedoutputdevices,andotherapplicable intermediate components (powersupplies, comparators, etc.).Thecalibration dataspecified intheCalibration Procedure shallbeverifiedbycalculation tobeconsistent withtheexistingsystemdesign.Thisincludesrange,span,gainandbias(scaling),
andtimeconstants fordynamiccompensation.
DocumentthisreviewinSection7.3.1ofAttachment A.Reviewing thePrimaryElementSection10.2.1ofthisdocumentaddresses theprimaryelement.Ensurethattheprimaryelementisadequately sizedforitsapplication.
Ensurethesensor'scalibration properlyreflectstheoutputoftheprimaryelement.DocumentthisreviewinSection7.3.2ofAttachment A.Reviewing theDirection ofInterestThecalibration procedure shouldexercisetheinstrument loop,asaminimum,inthedirection ofinterest.
Thecalibration maybeconducted inbothdirections.
Forinstrument loopswithbothasetpointandaresetpoint,thecalibration shouldbeconducted inbothdirections.
DocumentthisreviewinSection7.3.3ofAttachment A.Page11-2 11.3.4Evaluating ScalingAssurethatanyscalingequations andconstants addressed inSection10.4.1areincludedinthecalibration procedure andareconsistent withtheexistingsystemperformance requirements.
Documentgeneralscalinginformation in7.3.4ofAttachment A.11.3.5Evaluating Scaling(Correction Factors)Staticheadcorrection isidentified asafrequently overlooked factorinNRCInformation Notice91-75.Document, thisandsimilar"correction" factors,separatefromotherscalingequations inSection7.3.5ofAttavhment A.Page11<<3 EVALUATION OFLOOPUNCERTAINTY Thissectionprovidesdirection forcombining andevaluating theuncertainty dataobtainedinaccordance withSection10.5,anddocumented inSections8.0to8.8ofAttachment A.'nlessabiasisdemonstrated intheuncertainty data,thedocumented errorisassumedtoberandom,andapproximately normallydistributed withzeromeanandstandarddeviation equaltoonehalfthedocumented error.Thiscorresponds toassumingthaterrordata(fromvendors,testreports,etc.)isatleasttwostandarddeviations.
Theseassumptions providethebasisforcombining errordatausingthesquarerootofthesumofthesquares(SRSS)method.Thismethodisbasedonthefactthatthesumofnormallydistributed randomvariables (errorsinourcase)isitselfnormallydistributed randomvariable(error),withvariance(standard deviation squared)equaltothesumoftheindividual termvariances.
Whenloopoutputsarefunctions otherthansums(typically squarerootsinflow'easurement) ofterms,theresulting outputisnolongernormallydistributed.
Theerrorcombining methodsofReference 7.4shouldbeusedforthesemeasurements withtheknowledge thattheyarebasedonexpansions whichassumethattheerroris"small"comparedwiththemagnitude oftheparameter.
Somejudgement istherefore requiredusingthismethodology.
ProcessMeasurement Uncertainty (PMU)Asdocumented inSection8.3ofAttachment A,thePMUiscomposedofoneormoreprocessmeasurement accuracies (Pma)combinedusingSRSS,andifaprimaryelementispresent,aprimaryelementispresent,aprimaryelementaccuracy(Pea).ThesearecombinedusingSRSS,anddocumented inSection9.1ofAttachment A.Measurement andTestEquipment Uncertainty Asdocumented inSection8.4ofAttachment A,theindividual MGTEUdataarecombinedusingSRSS.DocumentthisinSection9.2ofAttachment Ausingseparatesensor(Sce)andRackEquipment (Rce)termscombinedusingSRSS.AccidentSensorEnvironmental Uncertainty PipeBreaks(AEUp)CombinetherandomaccidenterrortermsusingSRSSifnecessary andaddorsubtracttheaccidentbias(AB)asappropriate.
DocumentinSection9.3ofAttachment A.SeismicEvents(AEUs)Page12-1 Combineseismicerrorsifnecessary usingSRSS.DocumentinSection9.3ofAttachment A.AccidentCurrentLeakageUncertainty (CLU)Allcurrentleakagetermsarebiasingerrorsandarecombinedalgebraically.
DocumentinSection9.4ofAttachment A.RackEquipment Uncertainty (REU)CombinetermsusingSRSSanddocumentinSection9.5ofAttachment A.SensorUncertainty (SU)CombinetermsusingSRSSanddocumentinSection9.6ofAttachment A.DriftUncertainty (DU)CombinetermsusingSRSSanddocumentinSection9.7ofAttachment A.Tolerance Uncertainty (TU)CombinetermsusingSRSSanddocumentinSection9.8ofAttachment A.TotalLoopUncertainty UsingthemethodsinReference 7.4,Section6.3,calculate thetotalloopuncertainty anddocumentinSection9.9ofAttachment A.NotetheLUandABarebiasingtermswhichmayproduceopposingeffects.Thebiastermsshouldbecombinedinawaythatproducesthe"worstcase"error(s).
Theformofthetotalloopuncertainty functionisdependent onthescalingprocesses addressed inSection10.4anddocumented inSection6.3ofAttachment A.Comparison ofReference AccuracywithCalibration Tolerance XnSection9.10ofAttachment Adocumentthedatashowingthatthecalibration tolerances forcomponents intheinstrument looparelargerthanthecorresponding reference accuracies.
Page12-2 13.013~1SETPOINTEVALUATION Assigning LimitstoOutputDevicesrSection9.2.1ofthisprocedure addresses thelimitsassociated withtheinstrument loop.Thelimitsaredocumented inSection5.1.3ofAttachment A.Pairtheselimitswiththecorresponding outputdeviceswhichpreventthelimitfrombeingexceeded.
Documenttheoutputdevice/limit pairsinSection10.1ofAttachment A.13.213.2.1Evaluating theSetpoint(s)
TotalLoopUncertainty 13~2~2Obtainthetotalloopuncertainty (TLU),addressed intheprevioussection,fromSection9.9ofAttachment A.Evaluation ofExistingSetpointUsingTotalLoopUncertainty 13.2.2.1Todetermine themaximumorminimumacceptable instrument
- setpoint, thetotal'oop uncertainty (TLU)issubtracted fromoraddedtothelimit(analytical, design,orestimated design)depending onwhetherthesetpointactuation occursonanincreasing ordecreasing processparameter.
Foranincreasing processparameter setpointactuation:
maximumacceptable setpoint=limit-TLUForadecreasing processparameter setpointactuation:
minimumacceptable setpoint=limit+TLU13.2.2.2UsingtheTotalLoopUncertainty, determine whethertheexistingsetpointisadequatetopreventsystemparameters fromexceeding (highorlow)documented analytical ordesignlimits.Insomecasestheremaynotbeadocumented analytical ordesignlimit.Whenthisoccurs,reasonable assumptions maybemade.Forexampletheinstrument loopuncertaintyassumed inoriginalaccidentanalyses, mightbeusedtoestablish an"Estimated DesignLimit"(EDL).Thesetpointadequacycanthenbedetermined fromtheequations:
Page13-1 increasing processparameter setpoint:
setpoint<maximumacceptable setpointdecreasing processparameter setpoint:
setpoint>minimumacceptable setpointComparison ofExistingSetpointWithTechnical Specification Allowable ValuesIfthecalculation resultsarenotconsistent withtheTechnical Specification values,orotherperformance requirements documented inSection5.0ofAttachment A,takeappropriate corrective actionbasedontheGinnaStationQAManual.Page13-2 CONCLUSION WithintheConclusion Section,Section12ofAttachment A,.summarize theoverallresultsoftheinstrument's evaluation.
Discusswhetherornottheinstrument."s presentdesignandusemeetsthedocumented performance requirements.
Also,statewhetherornottheexistingcalibration procedure(s) supporttheinstrument loopfunctions.
Identifyanynecessary changestothecalibration procedure and/ortotheinstrument's design.Thediscussion shallonlyaddressnecessary changes.Suggestions forimprovement shouldbedocumented inaseparatereport.Withinthediscussion ofanyproposedchange,includeawelldefinedbasisforwhythechangeisneeded.Thisbasisshallincludethepotential consequences ofnotperforming thechangeandanyalternative measuresthatcouldbeperformed instead.Mark-upsofthecalibration procedures, ILWDS,orotherdocuments shouldbeusedasnecessary tosupportthediscussion.
Theseshallbeincludedasattachments tothischecklist andreferenced withinthediscussion.
Page14-1 ATTACHMENT AINSTRUMENT PERFORMANCE EVALUATION ANDSETPOINTVERIFICATION DesignAnalysisGinnaStationInstrument LoopPerformance Evaluation andSetpointVerification Instrument LoopNumber(Rochester GasandElectricCorporation 89EastAvenueRochester, NewYork14649DAEE-92--21Revision(Date)EWR5126Preparedby:Instrument Performance Verification EngineerDateReviewedby:Instrument Performance Verification ProjectManagerDateReviewedby:NuclearSafety6Licensing DateApprovedby:Manager,Electrical Engineering Date NUCLEARSAFETY&LICENSING INQUIRYDATABLOCKChangedornewequipment/system information requirescopytoGinnaifanyboxischeckedbelow.SafetyReviewClassByFromGMEDBNS&LReuiresCotoGinna.CheckalicableboxSetpoints (Instrument, ReliefValve,TimeDelay,Other)~See1~YNSee(g2)Operating Parameter (Flow,Pressure, Temperature, Volume,Other)See(g2)Operational Restrictions See(83)UFSARchangesarerequiredSection(s)
See(g4)NOTES:($1)Ifanyboxischecked,consulttheGMEDBrecordstodetermine thecomponent safetyclass,thenenter"SR"ifSafetyRelated,or"SS"ifSafetySignificant or"NSR"ifNon-Safety Related.(g2)IfSafetyClassis"SR"or"SS"reviewbyNS&Lisrequired.
(g3)Ifboxischecked,reviewbyNS&Lisrequired.
(g4)Responsible NESEngineershallcompletetheUFSARsection.IfUFSARchangesarerequired, reviewbyNS&Lisrequired.
EWR5126DesignAnalysisDAEE-92--21RevisionDatePagei DOCUMENTCONTROLDATAFORMPLANTSYSTEMSANDSTRUCTURES LIST(Ref.2.3;PSSLNumericIdentifiers)
KEYWORDS:CROSSREFERENCED TO:SUPERSEDED REFERENCE DATA:EINDESIGNATORS(S):
ERRS126DesignAnalysisDAEE-92--21PageiiRevisionDate REVISIONSTATUSSHEETPageLatestRevisionPageLatestRevisionERR5126DesignAna1ysisDAEE-92--21RevisionDatePageiii 0
INSTRUMENT PERFORMANCE EVALUATION ANDSETPOINTVERIFICATION TABLEOFCONTENTSSectionTitle1.02.03.04.05.07'8.09.010.0Instrument LoopIdentification PurposeReferences Assumptions BlockDiagramandScopeofAnalysisInstrument LoopPerformance Requirements Description oftheExistingInstrument LoopConfiguration Evaluation oftheExistingInstrument LoopConfiguration AgainstDocumented Performance Requirements Evaluation ofLoopUncertainties LoopUncertainty Calculation SetpointEvaluations 11.0Conclusion Attachment AOpenItemsListAttachment BSelectedReferences ERR5'126DesignAnalysisDAEE-92--21PageivRevisionDate INSTRUMENT PERFORMANCE EVALUATION ANDSETPOINTVERIFICATION Instrument LoopIdentification Calibration Procedure No:Description:
TheInstrument Performance Evaluation andSetpointVerification ofthefollowing equipment willbeperformed bythisdocument:
2~3.4.ERR5126Desi.gnAnalysisDAEE-92--21RevisionDatePage1
1.0 PurposeProvideabriefdescription
ofthereasonforpreparing thecalculation specifictotheloopbeingevaluated.
2.0 References
Listallofthereferences usedintheSetpointVerification Evaluation specifictotheloopbeingevaluated.
3.0 Assumptions
Listallassumptions thatweremadetoperformthecalculation specifictotheloopbeingevaluated.
4.0BlockDiagramandScopeofAnalysisProvideaBlockDiagramofthespecificloopbeingevaluated 4.1Description ofFunctions Makingreference totheBlockDiagram,describetheinstrument loopfunctions thatarewithinthescopeoftheanalysisusingtheformatbelow.4.1.1Protection Describeanyloopfunctions thatinputtotheReactorProtection andEngineered SafetyFeaturesActuation Systems.4.1.2ControlDescribeanyloopcontrolfunctions thatarewithinthescopeoftheanalysis.
Describeloopcontrolfunctions notwithinthescopetotheextentnecessary tojustifyexclusion.
4.1.3Indication Describeloopfunctions thatproduceindications thatarewithinthescopeoftheanalysis(e.g.RG1.97andEOPs).Reference existingEOPstudieswhereavailable.
Listindication notwithinscope.ERR5126DesignAnalysisDAEE-92--21RevisionDatePage2
5.0 Instrument
LoopPerformance Requirements 5.1Documenting theDesignRequirements forMonitoring theProcessParameter 5.1.1IdentifyPerformance RelatedDesignBasesAssociated withtheInstrument Loop:SafetyClassification (SR/SS/NS) asdocumented intheGinnaQ-list.NUREG0737/RG1.97asdocumented inTable7.5-1,oftheGinnaUFSAR.EQ(perthe10CFR50.49list)SeismicCategory(SeismicCategory1/Structual Integrity Only/NS)TechSpecUFSAREOPother5.1.2Description ofProcessParameter:
Undernormalconditions:
Undertestconditions:
Underaccidentconditions (whichaccidents?):
EWR5126DesignAnalysisDAEE-92--21RevisionDatePage3 5.1.3Description ofLimitsLimits~TeRefSectionEWR5126DesignAnalysisDAEE-92--21RevisionDatePage4 e1 I(5.2Documenting theEnvironmental Conditions Associated WiththeProcessParameter 5.2.1Identification oftheSensorLocation:
5.2.2Description ofEnvironmental ServiceConditions fortheSensor:5.2'.15.2'.1.15.2.2.1.2 NormalNormalOperation DuringCalibration 5.2.2.2Accident5.2.3Identification ofOtherComponents Locations:
5.2.4Description ofEnvironmental ServiceConditions forOtherComponents:
5~2~4~15.2'.1.15.2.4.1.2 NormalNormalOperation DuringCalibration 5.2.4.2AccidentERR5126DesignAnalysisDAEE-92--21RevisionDatePage5
6.0 Description
oftheEzistingInstrument LoopConfiguration 6.1SummaryofProcessMeasurement 6.1.1PrimaryElementInformation Manufacturer/Model No.SizeSpecifications Ref.SectionPipingConfiguration/Element Description Ref.Section6.1.2SensorInformation 6.1.2.1Manufacturer/Model No.Ref.Section6.1.2.2SensorRangeSensorSpanRef.Ref.Sec.Sec.ERR5126DesignAnalysisDAEE-92--21RevisionDatePage6 (6.1.3SensorEnvironmental Limits:PressTemp.Radiation HumidityRef.Ref.Ref.Ref.Sec.Sec.Sec.Sec.6.1.4Associated Equipment Environmental Limits:Reference theappropriate EQBlockDiagram.EQBlockDiagram6.2SummaryofSignalConditioning andOutputDevices:6.2.1SignalConditioning/Output DeviceInformation:
6.2.1.1TaTeRefSec6.2.1.2Tac~~SanSetointResetPtRefSec6.3Sealing6.3.1Performing theConversions:
Describetheconversion performed bytheinstrument loopfromthesensorinputtotheappropriate loopoutputsandquantifythecalculated biasesandgainsforeachapplicable component.
EWR5126DesignAnalysisDAEE-92--21RevisionDatePage7
~7'Evaluation ofExistingInstrument LoopConfiguration AgainstDocumented Performance Requirements, F1Evaluating theLoopConfiguration 7.1.1Compliance withDesignBasisPerformance Requirements:
Doestheexistingdesignconformtothedesignbasisperformance requirements identified inSection5.1.1ofthischecklist?
Explain:7.1.2Performance ofSafetyRelatedorSafetySignificant Functions:
Cantheexistingloopadequately performeachofitsSafetyRelatedorSafetySignificant functions (protection, control,and/orindication)?
Explain:7.1.3Evaluating theConsistency ofInstrument LoopDocumentation Istheloopconfiguration showninthecalibration procedure(s) consistent withtheapplicable designdrawing(s)?
Arecomponent manufacturers andmodelnumbersdocumented inthecalibration procedure consistent withthoseshownonapplicable designdrawings?
Ifsignificant inconsistencies exist,hasreasonable assurance oftheactualconfiguration beenestablished?
Haveappropriate notifications beenmaderegarding drawingchanges?ERR5126DesignAnalysisDAEE-92--21RevisionDatePage8 7.2Evaluating theLoop'sMeasurement Capability 7.2.1Evaluating theRange/Span:
Isthecalibrated spanofthesensorandindication devices(indicators, recorders, computeroutputpoints)broadenoughtoenvelopeallofthelimitsinSection5.1.3ofthischecklist?
Explain:7.2.2Evaluating theSetpoints andIndicated Valuesvs.theSpan:Aresetpoints locatedwithintheinstrument spaninawaythatassuresreasonable accuracyforthecriticalinstrument loopfunctions.
Explain:7.2.3Reviewing the,UnitsofMeasure:Aretheunitsfortheindicated valuesshownwithinthecalibration procedures consistent withtheEOPs?Explain:7.3Evaluating theCalibration 7.3.1Reviewing theCalibrated Components:
Iseveryapplicable component andoutputcalibrated?
Explain:-
7.3.2Reviewing thePrimaryElement:Doesthecalibration ofthesensorproperlyreflectthesizingoftheprimaryelement?Explain:EWR5126DesignAnalysisDAEE-92--21RevisionDatePage9 7.3.3Reviewing theDirection ofInterest:
Doesthecalibration procedure exercisethecomponents inthedirection ofinterest?
Explain:7.3.4Evaluating Scaling:Arethescalingequations andconstants described inSection6.3ofthischecklist consistent withtheexistingsystemperformance requirements.
Explain:7.3.5Evaluating Scaling(Calibration Correction Factors):
Describeanycalibration corrections usedtoaccountforprocess,environmental, installation effectsorforanyspecialdesignfeaturesemployedbytheinstrument.
Theseincludecorrections withinthecalibration processforelevation, statichead,density,calibration temperatures, etc.Ensureanyeffectnotaccounted forbythecalibration processisincludedwithinthedetermination ofthetotalloopuncertainty.
EWR5126DesignAnalysisDAEE-92--21RevisionDatePage10
8.0 Documentation
ofLoopUncertainties 8.1Documenting theComponents ofSensorAccidentUncertainty (AEUpandAEUs)8.1.1PipeBreaksAccidentEffectTemperature Effect(Te)
PressureEffect(Pe)
Radiation Effect(Re)
Steam/Chem Spray(S/Ce)
CombinedRandomAccidentEffect(Crae)
(perIEEE323tests)AccidentBias(AB)8.1.2SeismicEventUncertainty Ref/Section SeismicEffectSensorRackOutputDeviceUncertainty Ref/Section 8.2Documenting theComponents oftheAccidentCurrentLeakageEffect(CLU)Associated Equipment AccidentEffectsCableLeakage(Cl)
SpliceLeakage(Sl)
Penetration Leakage(Pl)Uncertainty Ref/Section ERR5126DesignAnalysisDAEE-92--21RevisionDatePage11 e
TermBlockLeakage(TB1)
ConduitSealLeakage(CS1)8.3Documenting theComponents ofProcessMeasurement Uncertainty (PMU)ProcessMeasurement Accuracy(Pma)
PrimaryElementAccuracy(Pea)
Uncertainty Ref/Section 8.4Documenting Measurement andTestEquipment Uncertainty (M&TEU)SensorCalibration Effect(Sce)
RackEquipment Calibration Effect(Rce)
Uncertainty Ref/Section 8.5Documenting RackEquipment Uncertainty (REU)'RackEquipment Accuracy(Rea)
RackTemperaure Effect(Rte)
RackPowerSupplyEffect(Rpse)
RackMiscellaneous Effect(Rme)
Uncertainty Ref/Section ERR5126DesignAnalysisDAEE-92--21RevisionDatePage12 8.6Documenting SensorUncertainty (SU)SensorAccuracy(Sa)
SensorStaticPressureEffect(Sspe)
SensorTemperature Effect(Ste)
SensorPowerSupplyEffect(Spse)
SensorMiscellaneous Effect(Sme)
Uncertainty Ref/Section 8.7Documenting DriftUncertainty (DU)SensorDrift(Sd)
RackEquipment Drift.(Red)
Uncertainty Ref/Section 8.8Documenting Tolerance Uncertainty (TU)SensorTolerance(St)
RackEquipment Tolerance(Ret)
Uncertainty Ref/Section EWR5126DesignAnalysisDAEE-92--21RevisionDatePage13
9.0 LoopUncertainty
Evaluation 9.1ProcessMeasurement Uncertainty (PMU)PMT=(Pma)+(Pea)9.2Measurement andTestEquipment Uncertainty (MRTEU)HTEU=(Sce)+(Rce)9.3Determining theAccidentSensorEnvironmental Uncertainties (AEU)ForPipeBreaks:AEUp=(Te)+(Re)+(Pe)+(S/Ce)+~IIorAEUp=Crae+ABForSeismicEvents:AEUs=Se9.4AccidentCurrentLeakageEffect(CLU)CLU=Cl+Sl+Pl+TB1+Csl9.5RackEquipment Uncertainty (REU)REU=(Rea)2+(Rbe)~+(Rpse)~+(Rme)2Themiscellaneous errorsmustbeconfirmed bytheengineertoberandomandindependent.
EMR5126DesignAnalysisDAEE-92,-21Page14RevisionDate 9.6SensorUncertainty (SU)SV=(Sa)+(Supe)+(Ste)+(Spec)+(Sme)9.7DriftUncertainty (DU)DV=(Sd)+(Red)9.8Tolerance Uncertainty (TU)TV=(St:)~+(Ret)~ERR5126DesignAnalysisDAEE-92--21RevisionDatePage15 9.9Calculating theTotalLoopUncertainties Providethetotalloopuncertainty (TLU)foreachenddevicefornormal,seismicandaccidentconditions asapplicable.
OutputDeviceTLUf(LUgABIAEVIPMUIM&TEUgREU/SUIDU~TU)Where:TLUsTLUaLUAEUsAEUpPMUREUSUDUTUABM&TEUTheTotalLoopUncertainty SeismicTheTotalLoopUncertainty AccidentCurrentLeakageUncertainty AccidentEnvironmental Uncertainty (Seismic)
AccidentEnvironmental Uncertainty (PipeBreak)ProcessMeasurement Uncertainty RackEquipment Uncertainty SensorUncertainty DriftUncertainty Tolerance Uncertainty AccidentBiasMeasurement andTestEquipment Uncertainty 9.10Comparing theReference Accuracyvs.theCalibration Tolerance Fromthecalibration procedure(s),
identifythecalibration tolerance associated witheachcomponent.
Next,obtainthereference accuracyassociated witheachcomponent.
Translate botheffectsintotheequivalent units.Ensurethatthecalibration tolerance isgreaterthanorequaltothereference accuracyforeachcomponent.
EWR5126DesignAnalysisDAEE-92--21RevisionDatePage16 10.0SetpointEvaluations 10.1Assigning theLimits:Foreachinstrument
- function, identifytheassociated limitsfrom5.1.3ofthischecklist.
OututDeviceLimitValueTeofLimit10.2Evaluating theSetpoint(s):
Comparetheexistingsetpoint, resetpointorindicated valuewithinthecalibration procedure withthemaximumorminimumacceptable setpoint.
OututDeviceSettINCDECAccetblSett10.3Verifying theAdequacyoftheAllowable Tolerance Band:Foreachcomponent, calculate
.themaximumas-foundandas-leftvaluelmits.Comparethesetotheexistingallowable tolerance bandpresently withinthecalibration procedure.
11.0Conclusion ERR5126DesignAnalysisDAEE-92--21RevisionDatePage17 Attachment AOpenItemsListAttachment BSelectedReferences ERR5126DesignAnalysisDAEE-92--21RevisionDatePage18 ATTACHMENT BOrganization ofDataandDocumentation SupportforInstrument LoopPerformance andsetpointVerification Documentation anddatatosupportprojectcalculations beingperformed bythecontractor willbefurnished ineitheroftwoways."Generic" dataanddocumentation, applicable toanumberoftheinstrument loopsortheassociated plantsystems,willbeprovidedatnearthestartofprojectactivity.
Thisdataanddocumentation iscontained inexistingreports,files,orpackagesthatcanbeidentified, segregated, andtransmitted withoutreference toaspecificinstrument loop.Instrument loop"specific" dataanddocumentation (notcontained inthe"generic" packages) willbeidentified byRG&EEngineering ina"pre-calculation" reviewofeachinstrument loopbeinganalyzed.
Thesereviewswillbeperformed, andidentified dataanddocumentation transmitted tothecontractor (Cygna,Boston),inadvanceofthecontractors workstartontheapplicable instrument loopcalculations.
tThefollowing tableslistthedataanddocuments ineachofthegroups.Thesetablesmayberevisedastheprojectadvances.
PageB-1 "Generic" documents tobesuppliedtoCygnaforgeneralreference.
2.3~4~5.6.7.8.9.GenericReference DocumentGinnaTechnical Specifications Ginna.UFSARFoxboroBDSeriesDwgs:RPS&ProcessControlBlockDiag.FoxboroCDSeriesDwgs:RPS&ProcessControlConnection Diag.Fox1,Fox2,Fox3,RVLMSlgRVLMS2gSAFWCab.Dwgs.FoxboroPSS9-1B1ANE-10SeriesTransmitters FoxboroPSS9-1A1A820SeriesTransmitters FoxboroWAPDManual(FirstThreeVols.)andSystemInst.Man.DesignAnalysis, "Calculation ofEOPFootnotes,"
NSL-4173-014,EWR4173,Rev.1DateSentInitialsComments10.12.13.14.15.16'7~18'rocedure Index(CPsonly)P&IDs(complete set)CCDIndexInstrument Index(4Vols.)"P"SeriesProcedures (Precautions
&Limitations)
WPWRTrainingManualRG&ETrainingDept.SystemDescriptions Integrated SystemPerformance AnalysesforHarshEnvironment Effects.FoxboroSPEC200Manual(4volumes)DELETEDPageB-2 GenericReference DocumentDateSent,InitialsComments19.20.21.22.23.24.25.26.27.28'9.30~Foxboro(SPEC200)NuclearQualification Doc.(7volumes)EOPSetpointDataBaseJGinnaStationQAManual,AppendixE,Attachment 1Instrument LoopWiringDiagrams(ILWDs)(Set)TestInstrument Calibration Procedures (TICPs)(Complete Set)RG&ESubmittal toNRC,3/13/92,NUREG0737/RG1.97:Comparison ofGinnaPostAccidentInstr.NRCInformation Notice91-75:StaticHeadCorrections inPressureTransmitter Cal.Proc.NRCInformation Notice92-12:EffectsofCableLeakageonInstrument SettingsandIndications NRCInformation Notice91-52:NonCons.ErrorsinOvertempDel.TCausedbyImprop.GainalsoIEN91-52SlandRGEresponseRG&EDwg03201-0102 R1Inst.BusSingleLineRG&EDwg33013-652 R12480VOneLineDiag.RG&EDesignAnalysis(DRAFT),"Flow Measuring ElementTech.Eval."LooporSystem"unique"documents AlsoROcoloredAlsoEWR5085ME-1Rev08/32/921~2~3~4~5.O6.8.Calibration Procedure(s)
Applicable Instrument LoopWiringDiagram(ILWD)ifitexists.Component vendormanualsnotincludedin"generic" documents Isometric, pipingandequipment drawings,and sketchesshowingcomponent locations, anddimensions.
Otherapplicable Vendor/RG&E drawings.
EQPackageData(e.g.EEQ-ls,EQBlockDiagrams)
Existinganalysesnotincludedingenericpackages.
Otherapplicable documentation (e.g.datasheets,EOPs)PageB-3 Precalculation Instrument ReviewChecklist.
1.Instrument LoopRev2.Calibration Procedure(s)
Procedure NumberDateSentInitials3.4~Instrument LoopBlockDiagram(Figure1),Simplified Schematic Diagram(Figure2)(Optional).
4Component Documentation (listallcomponents showninblockdiagramandindicate"generic" (gen)with"generic" docpkg.numberordatesent).a~Isometric, piping,orequipment drawingsshowingphysicalconfiguration.
Dwg.NumberDescription DateSentInitialsb.Component vendordrawingsanddocumentation.
(i)VendorManuals/Data Component (BIN)ModelgVTDg/DocgDate/InitialsPageB>>4 (ii)Vendor/RG&E DrawingsVendorDwg.NumberDescription DateSentInitialsc.EQdatafor50.49instrument loops(listallcomponents subjecttoharshenvironmental effects).
Component EQRef.Doc.DateSentInitialsd.Noteanyotherinformation provided.
Preparedby:DateReviewedby:DateApprovedby:R.A.BakerDateRG&ELeadI&CEngineerxc:R.BakerJ.BitterG.DanielsD.Kosack(Cygna)P.SwiftEWR5126FileElec.Eng.FilePageB-5 INSTRUMENT LOOPBLOCKDIAGRAMFIG1PageB-6 SIMPLIFIED SCHEMATIC DIAGRAM(OPTIONAL)
FIG2PageB-7 PageB-8 l~,
INSTRUMENT CALIBRATION DATASHEET3.INSTRUMENT NO~CURRENT-TO-VOLTAGE XVCONVERTER L-504Sheet1of2TECHSPECLOCATION:
RELAYROOMRVLMS-1.RACKNEST5SLOT9,PURPOSE:STEAMGENERATOR AHIDERANGELEVELXNPUTUNXTSDESXREDVALUEVDCASFOUNDVDCOUTPUTALLOWABLE TOLERANCE BANDVDCASLEFTVDC4p*0.00-0.05to0.058.012.0'.505.002.45to2.554.95to5.0516.07.507.45to7.552P.P**10.009.95to10.05(0AllTolerances are~ofSpan.TOLERANCE
+0;5~(+0.05VDC)~*ZEROA.Adjust,Point.**SPANAAdjustPoint.MGTESERXALNO.CALDUEDATECPX-LVL-504 Page26of40Rev.03 1