ML17261A862

Proposed Tech Specs Re Limiting Condition for Operation for Snubbers & Inservice Insp of High Energy Piping Outside Containment

ML17261A862
Person / Time
Site:	Ginna
Issue date:	02/16/1989
From:	ROCHESTER GAS & ELECTRIC CORP.
To:
Shared Package
ML17261A861	List: ML17261A860 ML17261A862
References
NUDOCS 8903010221
Download: ML17261A862 (20)

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ATTACHMENT ARevisetheTechnical Specification pagesasfollows:RemovePage1-laPages3.13-1through3.13-7Pages4.2-1through4.2-2Pages4.14-1through4.14-5InsertPage1-1aPage3.13-1Pages4.2-1through4.2-3Pages4.14-1through4.14-8Page6.10-385'030i022i 89'0216PDRAGOCK05000244PPDC<<4' 1.4erable-erabilitAsystem,subsystem, train,component ordeviceshallbeoperableorhaveoperability whenitiscapableofperforming itsspecified function(s).

Implicitinthisdefinition shallbetheassumption thatallnecessary attendant instrumentation,

controls, normaloremergency electrical powersources(subjecttoSection3.0.2),coolingorsealwater,lubrication,

supports, orotherauxiliary equipment thatarerequiredforthesystem,subsystem, train,component ordevicetoperformitsfunction(s) arealsocapableofperforming theirrelatedsupportfunction(s).

Amendment gg1-laIil-Proposed IIPyCIIII,IIl,I'fI 3'3SnubbersLimitinCondition for0eration3.13.1WithRCSconditions abovecoldshutdown, allsafety-related snubbersshallbeoperable.

Thisspecification doesnotapplytothosesnubbersinstalled onnonsafety-related.

systemsifthesnubberfailure,and.aresulting failureofthesupported nonsafety-related systemshowntobecausedbythatsnubberfailure,wouldhavenoadverseeffectonanysafety-related system.Action3.13.2Withoneormoresnubbersinoperable, within72hoursreplaceorrestoretheinoperable snubber(s) tooperablestatusandperformanengineering evaluation perSpecification 4.14.1eonthesupported component ordeclarethesupported systeminoperable andfollowtheappropriate actionstatement forBasisthatsystem.Snubbersarerequiredtobeoperabletoensurethatthestructural integrity ofthereactorcoolantsystemandallothersafety-related systemsismaintained duringandfollowing aseismicorothereventinitiating dynamicloads.Snubbersmaybereplacedbyrigidstructural supports(bumpers) providedananalysisisperformed todemonstrate thatappropriate acceptance criteriaaresatisfied fordesignbasisseismicandpipebreakeventsandprovidedthatthebumpersareinspected periodically inamannerappropriate forrigidstructural supports.

J3~131Proposed 4.2Inservice InsectionAlicabilit Appliestotheinservice inspection ofQualityGroupsA,B,andCComponents, HighEnergyPipingOutsideofContainment, SnubbersandSteamGenerator tubes.Italsoappliestoinservice pump.andvalvetesting.4.2.1Toprovideassurance ofthecontinuing structural andoperational integrity ofthestructures, components andsystemsinaccordance withtherequirements of10CFR50.55a(g).

Secification Theinservice inspection programforQualityGroupsA,B,andCComponents, HighEnergyPipingOutsideofContainment, SnubbersandSteamGenerator tubesshallbeinaccordance withAppendixBoftheGinnaStationQualityAssurance Manual.Thisinservice pumpandvalvetestingprogramshallbeinaccordance withAppendixCoftheGinnaStationQualityAssurance Manual.Theseinservice inspection programsshalldefinethespecificrequirements oftheeditionand.AddendaoftheASMEBoilerandPressureVesselCode,SectionXI,whichareapplicable forthefortymonthperiodofthetenyearinspection interval.

Theprograms'en yearinspection intervalshallbebasedonthefollowing commencing dates.Amendment No.4.2-1Proposed 4.2.1,1Theinspection intervalforQualityGroupAcomponents shallbetenyearintervals ofservicecommencing onJanuary1,1970.4.2.1.2Theinspection intervals forQualityGroupBandCComponents shallbetenyearintervals ofservicecommencing withMay1,1973,January1,1980,1990and2000,respectively.

4.2.1.3Theinspection intervals fortheHighEnergyPipingOutsideofContainment shallbetenyearintervals ofservicecommencing May1,1973,January1,1980,1990and2000,respectively.

Theinspection programduringeachthirdofthefirstinspection intervalprovidesforexamination ofallweldsatdesignbasisbreaklocations andone-third ofallweldsatlocations whereaweldfailurewouldresultinunacceptable consequences.

Duringeachsucceeding inspection

interval, theprogramshallprovideforanexamination ofeach1Iofthedesignbasisbreaklocation'elds,'nd eachoftheweldsatlocations whereaweld,failurewouldresultinunacceptable consequences.

4.2.1.4Theinspection intervals forSteamGenerator Tubesshallbespecified inthe"Inservice Inspection Program"fortheapplicable fortymonthperiodcommencing withMay1,1973.Amendment No.$4.2-2Proposed.

4.2.1,5Inservice Inspection ofASMECodeClass1,Class2andClass3components (QualityGroupsA,B,andC)shallbeperformed inaccordance withSectionXIoftheASMEBoilerandPressureVesselCodeandapplicable Addendaasrequiredby10CFR50,Section50.55a(g),

exceptwherespecificwrittenreliefhasbeengrantedbytheNRCpursuantto10CFR50,Section50.55a(g)(6)(i).

4.2.1.6Theinspection intervalfortheInservice PumpandValveTestingProgramshallbetenyearintervals commencing withJanuary1,1981,1990and2000.4.2.1.7Theinspection intervals forSnubbersshallbeasdefinedinSpecification 4.14.BasisTheinservice inspection programprovidesassurance forthecontinued structural integrity ofthestructures, components andsystemsofGinnaStation.TheprogramscomplywiththeASMEBoilerandVesselCodeSectionXI"RulesforInservice Inspection ofNuclearPowerPlantComponents" aspracticable, withdueconsideration tothedesignandphysicalaccessofthe'tructures, components andsystemsasmanufactured andconstructed.

Thiscompliance willconstitute anacceptable basisforsatisfying therequirements ofGeneralDesignCriterion 32,AppendixAof10CFRPart50andtherequirements ofSection50.55a,paragraph gof10CFRPart50.4.2-3Proposed 4~14,SNUBBERSURVEILLANCE REUIREMENTS:

4.14.1EachsnubberrequiredbySpecification 3.13tobeoperableshallbedemonstrated operablebyperformance ofthefollowing inservice inspection programandtherequirements ofSpecification 4.2.a.VisualInsectionsThevisualinspection periodforsnubbersunderthisprogramshallbebasedontheresultsofthepreviousinspections.

Subsequent visualinspections shallbeperformed inaccordance withthefollowing schedule:

No.Inoperable SnubbersofEachType*FoundDurinInsectionTimeUntilSubsequent VisualInsection**0123,45,6,78ormore18months12months6months124days62days31days+25'25'25'o+25'o+25'25'o"Typeofsnubber,asusedinthisspecification, shallmeansnubbersofthesamedesignandmanufacturer, irrespective ofcapacity.

• • Theinspection intervalforeachtypeofsnubbershallnotbelengthened morethanonestepatatimeunlessagenericproblemhasbeenidentified andcorrected; inthateventtheinspection intervalmaybelengthened onestepthefirsttimeandtwostepsthereafter ifnoinoperable snubbersofthattypearefound.4.14-1Proposed Snubbersmaybefurthercategorized intotwogroups:thoseaccessible andthoseinaccessible duringreactoroperation.

Eachgroupmaybeinspected independently inaccordance withtheaboveschedule.

b.VisualInsectionAccetanceCriteriaVisual'nspections shallverify:(1)thattherearenovisibleindications ofdamageorimpairedoperability, and(2)thattheattachments tothefoundation orsupporting structure aresecure.Snubberswhichappearinoperable asaresultofvisualinspections maybedetermined operableforthepurposeofestablishing thenextvisualinspection

interval, providedthat:(1)thecauseoftherejection isclearlyestablished andremediedforthatparticular snubberandothersnubbers, irrespective oftype,thatmaybegenerically susceptible; or(2)theaffectedsnubberisfunctionally testedintheas-foundcondition anddetermined operableperSpecification 4.14.1.d.

Whenafluidportofahydraulic snubberisfoundtobeuncovered thesnubbershallbedeclaredinoperable andshallnotbedeclaredinoperable andshallnot.bedetermined operable'iafunctional testingunlessthetestisstartedwiththepiston'intheas-found'setting, extending thepistonrodinthetensionmodedirection.

Allsnubbersconnected toaninoperable commonhydraulic fluidreservoir shallbecountedasinoperable snubbers.

4.14-2Proposed c.Functional TestsAtleastonceper18monthsduringshutdown, arepresentative sample(atleast10-oofthesnubbersrequiredbySpecification 3.13)shallbefunctionally testedeitherinplaceorinabenchtest.Foreachsnubberthatdoesnotmeetthefunctional testacceptance criteriaofSpecification 4.14.1.d, anadditional 10-oofthesnubbersshallbefunctionally testeduntilnomorefailuresarefoundoruntilallsnubbershavebeenfunctionally tested.Therepresentative sampleselectedforfunctional testingshall,asfaraspractical, includethevariousconfigurations, operating environments, rangeofsizesandcapacities ofsnubbers.

Inadditiontotheregularsample,snubbersplacedinthesamelocations assnubberswhichfailedthepreviousfunctional testshallberetestedatthetimeofthenextfunctional test.Additionally, ifafailedsnubberhasbeenrepairedandreinstalled inanotherlocation, thatfailedsnubbershallalsoberetested.

Thesesnubbersshallnotbeincludedintheregularsample.4.14-3Proposed.

Ifduringthefunctional testing,additional samplingisrequiredduetofailureofonlyonetypeofsnubber,thefunctional testingresultsshallbereviewedatthattimetodetermine ifadditional samplesshouldbelimitedtothetypeofsnubberwhichhasfailed,thefunctional testing.SteamGenerator snubbersareexcludedfromthefunctional testingrequirements untilthefirstrefueling outagefollowing completion oftheSGsnubberreplacement program.d.Functional TestAccetanceCriteriaThesnubberfunctional testshallverifythat:1)Activation (restraining action)isachievedwithinthespecified rangeinbothtensionandcompression; 2)Snubberbleed,orreleaseratewhererequired, ispresentinbothtensionandcompression, withintheflispecified range;3)Whererequired, theforcerequiredtoinitiateorltmaintainmotionofthesnubberiswithinthespecified rangeinbothdirections oftravel;and4)Forsnubbersspecifically requirednottodisplaceundercontinuous load,theabilityofthesnubbertowithstand loadwithoutdisplacement isverified.

Testingmethodsmaybeusedtomeasureparameters indirectly orparameters otherthanthosespecified ifthoseresultscanbecorrelated tothespecified parameters throughestablished methods.4.14-4Proposed.

~P"II e.Functional TestFailureAnalsisAnanalysisshallbemadeofeachfailuretomeetthefunctional testacceptance criteriatodetermine thecauseofthefailure.Theresultsofthisanalysisshallbeused,ifapplicable, inselecting snubberstobetestedinanefforttodetermine theoperability ofothersnubbers, irrespective oftype,whichmaybesubjecttothesamefailuremode.Forthespecificcaseofasnubberselectedforfunctional testingwhicheitherfailstoactivateorfailstomove,i.e.,frozen-in-place, thecausewillbeevaluated and,ifcausedbymanufacturer ordesigndeficiency, allsnubbersofthesametypesubjecttothesamedefectshallbefunctionally testedorevaluated inamannertoensuretheiroperability.

Anytestingperformed aspartofthisrequirement shallbeindependent oftherequirements statedinSpecification 4.14.1.cforsnubbersnotmeetingthefunctional testacceptance criteria.

Foranysnubbersfoundinoperable, anengineering evaluation shallbeperformed onthecomponents towhichtheinoperable snubbersareattached.

Thepurposeofthisengineering evaluation shallbetodetermine ifthecomponents towhichtheinoperable snubbersareattachedwereadversely affectedbytheinoperability ofthesnubbersinordertoensurethatthecomponent remainscapableofmeetingthedesignedservice.4.14-5Proposed IrflI1J

~~f.SnubberSealServiceLifeMonitorin Thesealservicelifeofhydraulic snubbersshallbemonitored andsealsreplacedasrequiredtoensurethattheservicelifeisnotexceededbetweensurveillance inspections duringaperiodwhenthesnubberisrequiredtobeoperable.

Thesealreplacements shallbedocumented andthedocumentation shallberetainedinaccordance withTechnical Specification 6.10.2.BasisSnubbersareprovidedtoensurethatthestructural integrity ofthereactorcoolantsystemandallothersafetyrelatedsystemsismaintained duringandfollowing aseismicorothereventinitiating dynamicloads.Thevisualinspection frequency isbaseduponmaintaining aconstantlevelofsnubberprotection tosystems.Therefore, therequiredinspection intervalvariesinversely withthenumberofinoperable snubbersfoundduringaninspection.

Inspections performed beforethatintervalhaselapsedmaybeusedasanewreference pointtodetermine thenextinspection.

However,theresultsofsuchearlyinspections performed beforetheoriginalrequiredtimeintervalhaselapsed(nominaltimeless25-o)maynotbeusedtolengthentherequiredinspection interval.

Anyinspection whoseresultsrequireashorterinspection intervalwilloverridethepreviousschedule.

4.14-6Proposed Whenthecauseoftherejection ofasnubberisclearlyestablished andremediedforthatsnubberandforanyothersnubbersthatmaybegenerically susceptible, andverifiedbyinservice functional testing,thatsnubbermaybeexemptedfrombeingcountedasinoperable.

Generically susceptible snubbersarethosewhichareofaspecificmakeormodelandhavethesamedesignfeaturesdirectlyrelatedtothesnubberrejectedorarethosewhicharesimilarly locatedorexposedtothesameenvironmental conditions suchastemperature, radiation, andvibration.

Whenasnubberisfound,inoperable, anengineering evaluation ofthesupported component isperformed inordertodetermine ifanysafety-related component orsystemhasbeenadversely affectedbytheinoperability ofthesnubber.Thisevaluation isinadditiontothedetermination ofthesnubbermodeoffailure.Theengineering evaluation shalldetermine whetherornotthesnubberfailurehasimparted.

asignificant effectonorcauseddegradation ofthesupported component orsystem,toensuretheyremaincapableofmeetingthedesignedservice.4.14-7Proposed llEII Toprovideassurance ofsnubberfunctional reliability, arepresentative sampleoftheinstalled snubberswillbefunctionally testedduringplantshutdowns atlessthanorequalto18monthintervals.

Observedfailuresofthesesamplesnubbersshallrequirefunctional testingofadditional units.Hydraulic snubbersand.mechanical snubbersmayeachbetreatedasadifferent entityfortheabovesurveillance programs.

Theservicelifeofasnubberisevaluated viamanufacturer inputandengineering information throughconsideration ofthesnubberserviceconditions andfunctional designrequirements.

Theonlysnubbercomponents withservicelivesnotexpectedtoexceedplantlifearesealsando-ringsfabricated fromcertainsealmaterials.

Therefore, asealreplacement programisrequiredtomonitorsnubbersealando-ringservicelifetoassuresnubberoperability isnotdegradedduetoexceeding component servicelife.4.14-8Proposed m.Recordsoftheservicelivesofallhydraulic andmechanical snubberslistedintheXnservice Xnspection Programincluding thedateatwhichtheservicelifecommences andassociated installation andmaintenance records.6.10-3Proposed rt