ML17251A353

Rev 6 to A-503.1, Emergency & Abnormal Operating Procedures Users Guide.

ML17251A353
Person / Time
Site:	Ginna
Issue date:	10/31/1988
From:	ROCHESTER GAS & ELECTRIC CORP.
To:
Shared Package
ML17251A351	List: ML17251A350 ML17251A352 ML17251A353 ML17309A409
References
A-503.1, NUDOCS 8811180197
Download: ML17251A353 (36)

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ROCHESTERGASANDELECTRICCORPORATIONGINNASTATIONCONTROLLEDCOPYNUMBERTIM::-PROCEDURENO.A-503.1REV.NO.EMERGENCYANDABNORMALOPERATINGPROCEDURESUSERSGUIDE,TECHNICALREVIEWPORCREVIEWDATEQUALITYASSURANCEPLANTSUPERINTENDENTEFFECTIVEDATEQANON-QACATEGORY1.0REVIEWEDBY:THISPROCEDURECONTAINS19PAGES8811180197881031PDRADOCK05000244PPDC

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A-503.1:1A-503.1EMERGENCYANDABNORMALPROCEDURESUSERSGU1DEINTRODUCTIONPURPOSE-togiveguidanceintheuseofEmergencyOperatingProcedures(EOPs)andAbnormalProcedures(APs)andtoclarifythelogicusedintheseprocedures.SCOPEOFAPPLICABILITY-thisprocedureisapplicabletoallEOPsandAPs.REFERENCES-applicabletothisprocedureare;WOG-ERG,Revision1,LPVersion,,ExecutiveVolumeUsersGuide.GinnaStationEOP/APWritersGuide,A-502.1.GinnaStationEOP/APSeries.DEFINITIONSEmergencyOperatingProcedure(EOP)-Aprocedurewhichprovidesactionsnecessarytoreturntheplanttoasafe,stableconditionfollowingatransient/acci-dentwhichhascausedplantparameterstochallengereactorprotectionsystemsetpoints,engineeredsafeguardssystemsetpoints,challengetheabilitytocoolthereactorcoreora.radiationreleaseboundary.AbnormalOperatingProcedure(AP)-APsgoverntheplantoperationsduringabnormalconditionsandspecifyoperatoractionsthatwillpreventtheconditionfromdegradingintoanemergency.CriticalSafetyFunction(CSF)-CSFsarethosefunctionsnecessarytoprotectthefuel/cladding,RCSpressureboundaryandthecontainmentvesselfromdegradation.Aprioritizedlistofthesesixfunctionsisasfollows:MaintenanceofSubcriticalityMaintenanceofCoreCoolingMaintenanceofHeatSinkMaintenanceofRCSIntegrity

A-503.1:21.4.3.51.4.3.61.5MaintenanceofContainmentIntegrityControlofReactorCoolantInventoryTEXTREVISIONS-areidentifiedbyachangebar.Thechangebarislocatedintherighthandmargintoindicatechangestothetextofthatline.Thechangebarforthecurrentrevisionwillnotbecarriedforwardtothenextrevision.2.0EOPAPSectionOranization-inordertofacilitaterapidlocationofspecificsectionsandsubsectionsoftheEOP/AP,thecontrolroomcopyisarrangedperFIGURE3asfollows:2.12'..COVERSHEET-whichisusedforadministrativepurposesanddoesnotprovideanyactive.functionintheEOP/APtobeused.TheCoverSheetoftheControlRoomcopyisthefirstpageseeninthebinder.PURPOSEandENTRYCONDITIONSSYMPTOMSPAGE-intheControlRoomcopyisimmediatelyfollowingthecoversheet.2.2~1~~2.2.22'2.3.12.3.22'.3APurposeStatementwhichspecificallydescribestheintentoftheprocedure.Entryconditionsand/orSymptomssectionswhichspecifytheconditions,transitionsand/orsymptomswhichdictateordirectentryintotheprocedure.Thesymptomsusedshouldbeuniquetotheprocedure.OPERATORACTIONSTEPPAGES-whichmaybesubdividedintoImmediateOperatorActionpages,followedbysubsequentoperatoractionpages.Operatoractionsteppagesmaycontain;CAUTIONSTATEMENTS-whichprovideinformationabouthazardstopersonnelorequipmentandadviceonactionsortransitionswhichmaybecomenecessarydependingonchangesinplantconditions.NOTESTATEMENTS-whichprovideadministrativeoradvisoryinformationwhichsupportsoperatoractions.OPERATORACTIONSTEPS-presentedinatwocolumnformat,directtheoperatorthroughspecificstepbysteptasks,givetheexpectedresultsfromthosetasksandprovidecontingencyactionstobetakenshouldanexpectedtaskmethodnotbeavailableoranexpectedresultnotbeobtained.

0 A-503.1:32.3.3.1~~~2.3.3.2ImmediateOperatorActions-actionswhichtheoperatorshouldbeabletoperformbeforeopeningandreadinghisemergencyprocedures.Ingeneral,immediateactionsarelimitedtotheverificationofautomaticprotectionfeaturesoftheplant.Althoughtheimmediateactionsshouldbememorizedbytheoperator,theyneednotbememorizedverbatim.Theoperatorshouldknowthemwellenoughtocompletetheintentofeachstep,whichistoverifythattheautomaticactionshaveoccurred.Theorderinwhichtheyshouldbeperformedshouldalsobeconsistentwiththestepsequencerequirements.SubsequentOperatorActions-actionsnotdefinedasimmediate.22'.3.4AnAction/ExpectedResponsecolumncontainstheprimaryoperatoractionandtheexpectedresponseorresultsofthoseactions.ExpectedresponseorresultsoftheoperatoractiontasksaregiveninCAPITALLETTERS,separatedfromtheactionbyadash(-)~TheResponseNotObtained(RNO)columnpresentscontingencyactionstobetakenwhenanactionintheleft.-handcolumncannotbeperformedordoesnotsatisfytheexpectedresponsecondition.RNOcolumnactionsarespecifiedforstepsandsubstepsforwhichusefulalternativesareavailable.Contingencyactionsmayincludedirectionstooverrideautomaticcontrols,tomanuallyorlocallyinitiatenormallyautomaticactions,ortousealternativesystems,evaluations,orprocedures.2.42.4.12.4.2OTHEREOP/APCONTENTS-mayinclude:AUTOMATICACTIONPAGE-whichprovidesinformationonsystemsorcomponentswhichshouldactivateorrealignautomatically,withoutoperatorintervention.FOLDOUTPAGE-whichprovidesasummaryofinformationandconditionstobemonitoredthroughouttheEOP/AP.ThispageprovidesactionsandtransitionsbasedonplantconditionswhichmayoccuroutsidethenormalflowoftheEOP/AP.2.4.3FIGURES-maybedrawings,graphsordiagramswhichwillprovideadditionalinformationtotheoperator.

A-503.1:42.4.4~~3.0ATTACHMENTPAGES-whichmaybeusedtoprovideadditionalinformationtotheoperator.Theyprovideinformationconcerningaparticularsteporevolutionaddressedintheprocedure.'heinformationpresentedisofimportancetotheactionordecisionwherereferenced,butisofalengthorformatwhichprecludesincorporationintotheprocedurestep.INSTRUCTIONSNOTE:Seeattachment1,ExampleofEOPUse,whichdescribestheprocessofworkingthroughadualcolumnformattedEOPandimplementstheinstructionsdescribedherein.NOTERefertoA-502.1EOP/APWriterGuide(Reference1.3.2)foractualformatandcontentrequirements.3.1ENTRYINTOEOPAP-entryintoanEOP/APnormallybeginsatthePURPOSEANDENTRYCONDITIONS/SYMPTOMSpageandsequentiallyprogressesthroughtheOperatorActionpagesunlessspecificallydirectedoutsidethenormaloperatingorabnormalprocedure,byaFoldoutpageconcernorbyaCSFSTcondition.DirectentryintotheEOPsetisnormallythroughE-O,butproce-dureFR-S.lorECA-O.Omaybeentereddirectlyiftheentryconditionsareobserved.3.2PURPOSEandENTRYCONDITIONSSYMPTOMSPAGE3.2.13.2.2Verifythattheprocedurepurposesatisfiesthespecificgoaldesired.Verifythatthestatedentryconditionsareconsistentwithcurrentplantconditionsorthatthecorrecttransitionshavebeenmade.3.2.33.3Verifythatcurrentplantsymptomsmeetthesymptomsassociatedwiththeprocedureinhand.OPERATORACTIONSTEPPAGES3.3.13.3.1.13~3~1~2NOTESandCAUTIONSObserveallapplicableNOTESandCAUTIONSpriortoperforminganystep.NOTESandCAUTIONSimmediatelyproceedtheapplicablestep(s)towhichtheyapply.ThoseapplicabletotheentireprocedureareshownpriortoanyOperatorActionstep.

~~00 A-503.1:53.3'.3~~~CautionsaredifferentiatedfromnotesbyinclusionofasterisksacrosstheEOPPage(SeeReference1.3.2).3.3.2DUALCOLUMNFORMATUSAGE3.3~2~13PerformallImmediateactionspriortoperformingSubsequentactionsteps.Performactionsintheleft-handcolumnfirst.3.33.3.2.43.3.2.5Movetothenextstepandperformactionsintheleft-handcolumniftheactionsinthepreviousleft-handcolumnwereperformedsuccessfully.Performactionsintheright-handcolumnonlyiftheactionperformedintheleft-handcolumndoesnotachievetheexpectedresponseortheactionintheleft-handcolumncannotbeperformed.Movetothenextsteporsubstepandperformactionsintheleft-handcolumniftheactionsinthepreviousright-handcolumnareperformedsuccessfullyoriftheactionsinthepreviousright-handcolumnfailtobringabouttherequiredresponseornoentryexistsintheright-handcolumnunlessspecificallydirectednottocontinue.3.3.2.63~3~2~7Performallnumericallyoralphabeticallyidentifiedstepsinsequentialorder.Thosesubstepsidentifiedbybullets(o)maybeperformedinanyorderorpreference.Beginninganactionsteporsubstepandbeingassuredthatitisprogressingsuccessfullyissufficientactiontoproceedtoasubsequentstepunless;3.3.2.7.1ANOTEstatesotherwiseor;3.33.3.2.7.33.3'3.3.3'~~~Thestepspecifiesotherwiseor;Theoperatordeemsithazardoustopersonnelorequipmenttoproceed.TEXTCONTINUITY-thetextofoperatoractionsteps;withapplicablesubsteps,cautions,notes;willnormallybewhollycontainedonthesamepage.Wherephysicalconstraintsprecludethisthefollowingguidelinesareused:Cautionsand/ornotesareplacedontheimmediatelyprecedingpage.

~r!l,e0 A-503F1:63.3~~~3.3.3.2.13.3.3.2.23.3.43.3.F13.3.4'Ifastepiscontinuedontoanotherpage,then:Theinitialpageisannotatedatthebottomoftheactionstepfieldportionofthepagetoindicatethatthestepiscontinuedonthenextpage.(ie,THISSTEPCONTINUEDONFOLLOWINGPAGE)Thefollowerpagewillhavetheinitialactionstepheadingrepeatedwithastatementtoindicatethatthestepisbeingcontinuedfromapreviouspage.example:Establishletdown-THISSTEPCONTINUEDFROMPREVIOUSPAGEUSEOFLOGECTERMSANDCONDITIONALSTATEMENTS:ThewordANDisplacedbetweenadescriptionofconditionsfornomorethancombinationofthreeconditions.Alistformatshallbeusedforfourormoreconditions.Thereisanimpliedandconditionbetweeneachlistitemifnologictermisspecifiedifsubstepsareproceededwithbullets(o).ThewordORisusedbetweenalternativeconditions.UseofthewordORimpliestheinclusivesense.TheexclusivesenseofthewordORisdenotedbyusingtheform;eitherAORBbutnotboth.3.3.4'.13.3.4.3Whentheinclusiveorisusedforasetofconditions,thesatisfactionofanyoneconditionallowsprogres-siontothenextsteporsubstep.Whentwoormoreactionsareseparatedbyanorcondition,onlyoneactionneedstobesuccessfullytakentoallowprogressiontothenextsteporsubstep.Actionstepscontingentuponcertainconditionsorcombinationsofconditions,beginwiththelogictermsIForWHENfollowedbyadescriptionofthecondition(s),acomma,thelogictermTHENandtheactiontobetaken.IFisusedforunexpectedorpossibleconditions,THENisonlyusedinconditionalstatementsandWHENisusedforexpectedorprobableconditions.3.3.4'ThelogictermIFNOTistheoperatormustrespondpossibleconditions.Theoperatorresponsetotheconditions.limitedtocasesinwhichtothesecondofanytwotermIFisusedtospecifyfirstofanytwopossible3~~USEOFREFERENCETERMS I4 A-503.1:7ThewordsGOTOfollowedbyonlyastepnumberdirectstransitiontoasubsequentstepwithintheprocedurebeingused.ThewordsRETURNTOfollowedbyonlyastepnumberdirectstransitiontoapreviousstepwithintheprocedurebeingused.ThewordsGOTOfollowedbyaproceduredesignator,andtitleand/orastepnumberdirectatransitiontothespecifiedEOP/AP.Ifnostepnumberisspecified,thenthetransitionistothebeginningofthespecifiedprocedure.Example:GOTOES-0.1,REACTORTRIPRESPONSE,Step20.ThewordsREFERTOfollowedbyaproceduredesignatorandtitleareusedtodenoteaprocedurewhichmayprovidenecessaryorusefulinformationduringtheexecutionofanEOP/AP.Ingeneral,thoseproceduresreferencedcoverlowprobabilityoccurrences,orplantevaluationswiththeirownprocedureswhoseinclusionintheEOP/APwouldcauseexcessivecomplicationofandreducedeffectivenessoftheEOP/AP.ReferencinganotherproceduredoesnotconstituteleavingtheEOP/APineffect.Example:REFERTOER-AFW.l,ALTERNATEWATERSUPPLYTOAFWPUMPS.ProceduresenteredforsupplementalguidanceorfromCSFSTdirectionmaycontainaRETURNTOstatement.AprocedurewithmultipleentryconditionsmaystateRETURNTOPROCEDUREANDSTEPINEFFECT,thisdenotesareturntothelastpreviousEOPandstepinuse.ACTIONVERBSANDABBREVIATIONSUSAGEOperatoractionstepsarenormallywritteninacommandformandbeginwithanactionverbwhichhasaprecisemeaning.RefertoA-502.1,WOP/APWritersGuide(Reference1;3.2)forlisting.CertainabbreviationsareusedthroughouttheEOPsandAPstoimprovereadability.RefertoA-502.1,EOP/APWritersGuideforproperabbreviations.

I FOLDOUTPAGESA-503.1'83.4.13.4.2DirectiontouseafoldoutpageisprovidedbyaNOTEwithintheprocedure,generallyatthebeginning.OnceitsuseisdirectedtheFoldoutpageistobemonitoredthroughoutthetimetheEOPisinuse.OnesectionofeachfoldoutpageisaREDPATHSUMMARYwhichpromotesaperiodiccheckoftheCriticalSafetyFunctions.UponmeetingoneormoreRedpathconditions,transitiontotheappropriateFunctionalRestorationprocedureismadeasdescribedinsection3.6.3OthersectionsoftheFoldoutpagecontainplantconditionswhichmayariseatanytimeduringtheexecutionoftheprocedureoroutsideofthenormalflowoftheprocedure.Thesesectionsprovideactionsorguidanceforoperationsiftheseconditionsoccur.3.5USEOFCRITICALSAFETYFUNCTIONSTATUSTREESCSFST3.5~1~~3.5.2CSFSTsareenteredfromandmonitoredinconjunctionwiththerecoveryactionsoftheotherEOPseriesprocedures.FRproceduresareenteredfromtheCSFSTortheEOPsandareintendedtorestoreadegradedsafetyfunctiontosatisfiedcondition.3'.33.5'3.5.5ACSFST,asshowninFigure1,isenteredontheleftsideofthepageasindicatedbythearrow.Questionsareaskedandansweredinturnwhichthendirecttheusertothenextquestion.Whenallquestionsareansweredinaparticularpaththeuserwillhavereachedanendpointorterminus.Eachfinalpathsegmentandeachterminuscircleiscodedbyasymbolscheme.Thecontrolroomcopyalsoutilizesacolorcode.Thesymbolsandcolorcodingusedaredescribedbelow.3.5.5.13.5.5.2Colorcode-GREEN,finalpathsegmentandterminuscircleareout-linedonly:TheCSFissatisfied.Nooperatoractionisrequired.Colorcode-YELLOW,thefinalpathsegmentisaseriesofsoliddotsandtheterminuscircleisonethirdfilledin:TheCSFisoff-normal.Operatoractionmaybetaken.

~i A-503.1:93'.5.3~~~3.5.5.43.5.6Colorcode-ORANGE,thefinalpathsegmentisabrokenline,theterminuscircleistwothirdsfilledin:TheCSFisunderseverechallenge.Promptoperatoractionisrequired.Colorcode-RED,thefinalpathsegmentisasolidline,theterminuscircleistotallyfilledin:TheCSFisunderextremechallenge.Immediateoperatoractionisrequired.ForYellow,OrangeandRedpathsaproceduredesignatorwillbeincludedtodirecttheoperatortothecorrectFunctionRestoration(FR)procedure.Theseprocedures.areintendedtoreturntheCSFtothesatisfiedcondition.3.6PRIORITIZATIONOFFUNCTIONRESTORATIONPROCEDURES3.6.13.6.2~~RedorOrangechallengestoaCriticalSafetyfunctiontakepriorityoverallE,ES,ERandECAproceduresexceptECA-O.O,LossofAllACPowerandtheimmediateactionstepsofE-O,ReactorTriporSafetyInjection.ThesixCSFSTsareorderedinthecontrolroombookbythefollowingprioritylist.Thislistingestab-lishesthepriorityinwhichconditionsaretobeaddressedinconjunctionwiththecolorcodepriorityasdescribedin3.6.3.3.6.2.13.6.2.23.6.2.33.6.2.43.6.2.53.6.2.63.6.3Subcriticality(S)CoreCooling(C)HeatSink(H)Integrity(P)Containment(Z)Inventory(I)OnceenteredtheCSFSTsshouldbemonitoredinthepriorityorder.EachCSFSTisfollowedtoaterminusbasedonplantconditionsatthattime.AnexampleofstatustreeuseisincludedasAttachment2.Therulesofusebasedonthecolorcode/symbolsystemareasfollows:3.6.3.1IfaREDpath/solidcircleterminusisreached,anyprocedureineffectotherthanthosenotedinstep3.6.1issuspendedandtransitionismadetotheFRproceduredesignatedontheCSFST.

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A-503.1:103.6.3.2~~~3.6.3.3Ifduringtheperformanceo'fanFRprocedurefromaREDpathconditionahigherpriorityREDpathisdetermined,theFRprocedureinuseissuspendedandthehigherpriorityconditionprocedureisaddressed.Oncethehigherpriorityprocedureiscomplete,thesuspendedprocedureforthelowerpriorityconditionistobecompleted.IfanORANGEpath/2/3filledcircleterminus,isreached,theremainingtreesarechecked.IfnoREDpathexists,proceduresineffectotherthanthosenotedinstep3.6.1aresuspendedandtheFRprocedureindicatedforthehighestpriorityORANGEpathconditionidentifiedisentered.3.6.3e43.6.3.5~~~3.6~3.6IfduringtheperformanceofanORANGEterminusdirectedFRprocedure,aREDpathorhigherpriorityORANGEpathconditionarises,thentheoriginalORANGEpathFRissuspendedandtheREDorhigherpriorityORANGEconditionisaddressed.Oncethehigherpriorityconditionprocedureiscompleted,thesuspendedprocedureforthenextlowerpriorityconditionistobecompleted.WhileitisexpectedthattheactionsintheFRprocedurewillcleartheREDandORANGEconditionsbeforealloperatoractionsarecompleted,theprocedureisperformedtothepointofaproceduredriventransition.However,FR-S.1,ReactorRestart-/ATWSreceuirescompletionwhenentered.AYELLOWpath/1/3filledcircleterminusisanindicationofanoff-normalcondition.Thesedonottakepriorityoverotherprocedures.TheoperatorisallowedtodecideifanFRprocedurenotedataYELLOWterminusistobeimplementedbasedontheplantstatusandsystemtrendsat.thetimetheconditionisnoted.3'CONTROLROOMPROCEDURELAYOUTANDPLACEKEEPING3.7.13.7'TheControlRoomcopyoftheEOP/APproceduresareorganizedinindividualbinderswithlayoutperFIGURE1.Thislayoutprovidesforeasyaccess,visibilityof-.ATTACHMENTSandFOLDOUTPages,andensuresplacekeeping.EachEOP/APbinderislocatedforeasyaccesswiththeControlRoom.Eachbinderisidentifiedbyletterdesignation,number,andtitle.Example:E-O,ReactorTriporSafetyInjection

A-503.1:113.7.4PlacekeepingintheresponsibilityoftheEOPUser,normallytheControlRoomForeman.Inordertoensureproperplacekeeping,theEOPUsermaycheckofforannotatestepsbyusingpen/pencilmarkingstotheimmediaterightoftheActionSteporRNOperformed.Alsoavailabletohim,arestick-onpadsornotepadswhichmaybeaffixedtopageswheretransitionorloopingarenecessary.InadditiontotheControlRoomControlledCopy,additionalcontrolledhardcopiesoftheEOP/APsareavailabletothecontrolroomoperatorsinthecopy54fileswithinthecontrolroom.3.8GENERICISSUESOFCONCERN3~8~13.8.1.1Adversecontainmentprocessparametervalues:Ifeithercontainmentpressureexceeds4psigorthecontainmentradiationexceeds105R/hr,theoperatorshoulduseadversecontainmentvalues.3.8.1.2~~~IfAdverseCNMTvaluesarebeingusedANDbothofthefollowingconditionsaremet,THENtheoperatormayreverttouseofnormalcontainmentvalues:3~8.1.2.13.8.1.2.23.8.23.8.2.1CNMTpressuredecreasesbelowthepressuresetpoint(4psig)and,IfCNMTradiationexceeded10R/hr,HealthPhysicsshouldassesstheintegratedradiationdose.Iftheintegratedradiationdoseisverifiedtobelessthan106Radswithdoseratelessthan105R/hr,theoperatormayagainusenormalCNMTvalues.TechnicalSpecificationViolationsduringEOPuse:TheEOPscontainactionswhichwillleadtoTechnicalSpecificationviolationsinordertomaintainplantsafety.AlthoughitisdesirabletoremainwithinTechnicalSpecificationlimitsatalltimes,onemustkeepinmindthattheoverallobjectiveistoprotectthehealthandsafetyofthepublic.ThismayrequireviolatingaparticularTechnicalSpecificationinresponsetoanaccident,althoughtheEOPprovidestrategythatallowsTechnicalSpecificationlimitstobeadheredtowheneverpossible.

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A-503.1:12ATTACHMENT1EXAMPLEOFEOPUSETheactualprocessofworkingthroughadualcolumnformattedEOPisillustratedbyusingE-2,FaultedSteamGeneratorIsolation.ItisassumedtheuserwasdirectedtothebeginningofthisprocedurebyanotherEOP.Thecoverpageprovidestheproceduredesignatorandtitletoassurethecorrectprocedurehasbeenobtained.ThePURPOSEsectiontellstheuserthatthisprocedureiswrittentoidentifyandisolateafaultedSteamGenerator.TheENTRYCONDITIONS/SYMP-TOMSsectionlistshouldshowtheprocedurefromwhichtransitionhasbeenmade.Thefirstactionstepoftheprocedureispreceededbytwocautionstatementsandonenotestatement.ThecautionsaredistinguishedbyalineofasterisksaboveandbelowthemandthewordCAUTION.ThewordNOTEdistinguishesthenote'sexistence.Bothtypesofentriesarealsomademorevisiblebytheuseoftheentirewidthofthepageincontrasttothedualcolumnformatoftheactionsteps.I\ThefirstcautiontellstheoperatorthatatleastoneS/GmustbemaintainedavailableforRCScooldown.ThesecondcautiontellstheoperatorthatanyfaultedS/GorsecondarybreakwhichbecomesisolatedshouldremainisolatedduringsubsequentrecoveryactionsunlessneededforRCScooldown.Bothofthesecautionsareplacedatthispointduetotheisolationprocessbeguninthenextstep.Theoperatorispresumedtoknowthat"faulted"means-afailureofthesecondarypressureboundary,and"isolated"referstoclosureofsteamand/orfeedpaths.ThecautionshaveprovidedaspecificcriteriaofRCScooldownconcernsfornotisolating,orunisolatingafaultedS/G.Inaddition,thesecondcautionremindstheoperatorthattheconcernsformaintainingafaultedS/Gisolatedcontinuetoexistafteratransitionfromthisproceduretoanother.Thenoteremindstheoperatorthatstatustreemonitoringshouldbeoccurring.Thefirstaction,Step1,isacheckformainsteamlineisolationonanyaffected(faulted)S/G.TheexpectedconditionisthattheMSIVandbypassvalveonanyaffectedS/GisCLOSED.Iftheoperatorsdeterminetheyareclosed,theyproceedtoStep2.IfanyvalveisnotclosedonanaffectedS/G,thenatransfertotheright-handorRESPONSENOTOBTAINED(RNO)column.Thiscolumninstructsmanualclosureofthevalves.Aftertheperfor-manceofthisactiontheoperatorproceedstothenexttaskintheleft-handcolumn.Ifanyvalvecannotbeclosed,theoperatorstillproceedstothenexttaskintheleft-handcolumn.

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Step2containsahighlevelactionstepto"CheckIfEitherS/GIsNotFaulted"withasubstep"a."taskprovidingmoredetailonhowtocompletethistask.ThesubstepinstructsthecheckingofpressuresinbothS/G's.Theexpectedresponseof"EITHERS/GSTABLEORINCREASING"issatisfiedifthepressureinoneS/G,orboth,isstableorincreasingandtheuserproceedstoStep3.Ifpressureisdecreasinginboth'S/G's,thentheleft-handcolumnisnotsatisfiedandamovetotheRNOcolumnismade.TheRNOcolumndirectsatransitiontoECA-2.1ifbothS/G'spressurearedecreasinginanuncontrolledmanner.Atthispointtheoperatorsmustdetermineifthedecreasingpressureiscontrolledoruncontrolled.Ifitisinfactuncontrolledbytheoperators,thenthetransitionismade.IfthedepressurizationinatleastoneS/Gisundercontrol,thentheyproceedtotheleft-handcolumnandintoStep3.Step3directstheuserto"IDENTIFYFAULTEDS/G(s)"andagainusesasubstepfordetailedtaskdescription.TwoindicationsareusedtodetermineifaS/Gisfaulted.IfaS/Gisdepressur-izinginanuncontrolledmanneroriscompletelydepressurizeditisidentifiedasbeingfaultedandtheoperatormovesontoStep4.TheuseofthewordORbetweenthetwobulletmarkedconditionssignifiesthatonlyoneoftheconditionsneedbesatisfiedtoidentifyafaultedS/G.IfnoS/Gsatisfieseitherlistedcondition,thentheoperatormovestotheRNOcolumn.TheRNOactiondirectsasearchfortheinitiatingbreakas'tisassumedthatthebreakhasbeenisolatedbythepreviousclosureoftheMSIVandbypass.Oncethesearchisbeguntheactionportionofthestepissatisfiedandmovementthroughtheproceduremaycontinue.TheRNOstepnowtellstheusertoGOTOStep5.ThisbypassestheStep4isolationasnofaultedS/Gnowexists.Step,4tellstheoperatorsto"IsolateFaultedS/G"andprovidesalistofinletandoutletflowpathstobeisolated.Thesearelistedwithbulletdesignatorstherebynotingthatnoparticular'rderofisolationisrequired.Theoperatorsproceedtoverifyisolatedorisolatepathsfromthecontrolroomanddispatchpersonneltothelistedareasforotherpaths.Ifsomeaspectofthecontrolroomisolationprocessisnotsatisfied,theRNOcolumnisaccessed.TheRNOcolumndirectsclosingvalvesfromthecontrolroomand,ifthatisnotpossible,dispatchingpersonneltoperformlocalisolations.Withcontingencyactionscompletedorlocalactionsinitiated,theoperatorproceedstoStep5.Step5requiresacheckoftheCondensateStorageTankslevel.Ifthelevelisgreaterthan5feet,theexpectedresponseissatisfiedandtheoperatormovestoStep6.Ifthelevelisnotgreaterthan5feetthentheRNOcolumninstructsaswitchtoanalternateAFWwatersupplyandprovidesareferencetoER-AFW.l.

lIbr<Ir00 SincethisisaREFERTOstatementtheE-2procedureisnotexited.TheER-AFW.1procedureisusedinparallelwiththeE-2procedure,aspossibleandappropriate,andtheoperatormovesontoStep6.Step6directsacheckofsecondaryradiationindicators.Severalsubstepsareusedtosatisfythehighlevelactionstep.InthefirstsubsteptheoperatorwillrequestperiodicsamplesbecollectedbyHPpersonnel.Thedesiredsamplesarespecifiedandtheappropriateproceduresarereferenced.OncetheHPdepartmentisnotifiedthissubstepissatisfiedandtheoperatorproceedstothenextsubstep.Heretheoperatorsaredirectedtocheckanyunisolatedsecondaryradiationmonitors.Alistofthosemonitorswhichmaybeusedfromthecontrolroomisincluded.Thethirdsubstepisaconclusionoftheradiationcheckprocess.Iftheradiationlevelsarenormaltheoperatorproceedstostep7.Ifabnormalradiationisdetected,thentheoperatormovestotheRNOcolumn.ThisentrydirectsatransitiontoE-3,thereforetheE-2procedureisexitedandentryismadeintotheE-3procedure.Step7directstheoperatortoGOTOE-l,thisendstheuseoftheE-2procedureandprovidesdirectionfortransitiontoanotherappropriateprocedure,E-1isenteredatstepone,theCAUTIONSandNOTEbeforesteponeinE-1aretoberead.

e0 A-503.1:15ATTACHMENT2CRITICALSAFETYFUNCTIONSTATUSTREEUSETheprocessofworkingthroughthestatustreescanbeillustratedbyusingCSFST:F-0.1,SUBCRITICALITY.(FIGURE1)Theuserentersthetreeontheleft-handsideofthearrow.Thefirstblockasksifthepowerrangeinstrumentsindicatelessthan5%.ThepossibleanswersareYESorNO.Ifindicatedpowerisgreaterthan5%,thentheresponseisNO.ExitingthedecisionboxattheNOsegmentplacestheuseronapathwhichleadsdirectlytoaterminus.At.thispointitisdeterminedthat:otheresponsepriorityisREDotheappropriateFunctionRestorationprocedureisFR-S.lAccordingtotherulesofpriorityanyprocedureineffect,otherthanECA-0.0ortheimmediateactionsofE-O,wouldbesuspendedandactionsforFR-S.1wouldbeinitiated.SinceSubcriticalityisthehighestpriorityCriticalSafetyFunction,thiswouldalsosuspendanyFRprocedureineffectotherthanFR-S.l.MonitoringoftheCSFSTsmaycontinueforinformationpurposes.WhenFR-S.1iscompletetheuserisdirectedtoreturntotheprocedureandstepineffect.Thispermitsareturntothesuspendedprocedureatthepointofsuspension,oranyotherREDorORANGEpathsidentifiedwouldnowbeaddressedintheirpriorityorder.Ifindicatedpowerislessthan5%,thefirstdecisionblockisexitedattheYESsectionpathwaywhichleadstothenextdecisionblock.Thisblockaskstheuseriftheintermediaterangestartuprateiszeroornegative.IfthestartuprateispositivetheblockisexitedattheNOsection.Thispathleadsdirectlytoaterminuswhereitisdeterminedthat:otheresponsepriorityisORANGEotheproceduretobeusedisFR-S.lTheusernowmustchecktheotherstatustreestodetermineifaREDpathexistsonanothertree.IfnoREDpathconditionsexisttheSubcriticalityORANGEpathbecomesthepriorityprocedureandsuspensionofaninuseprocedureoccursaspreviouslydescribed.UndertheseconditionsmonitoringoftheCSFSTscontinuesandifaREDpathconditionarisesittakespriority.WhenFR-S.1iscompleted,areturntothepreviouslysuspendedproceduretakesplace.IfanyotherORANGEpathconditionshadoccurred,they"-=""'ouldnowbeaddressesintheorderofpriority.

a A-503.1:16Ifthestartuprateisdeterminedtobezeroornegative,exitisbytheYESsegmentwhichleadstoanotherdecisionblock.Theuserisnowaskedtodetermineifasourcerangeisenergized.IfnosourcerangeisenergizedthisblockisexitedviatheNOsegmenttoanotherdecisionblock.Thisblockasksiftheintermediaterangestartuprateismorenegativethan-0.2DPM.Iftheindicatedstartuprateisbetween0and-0.2DPM,theusernowexitsattheNOsectionandreachesaterminuswhereitisdeterminedthat:otheresponsepriorityisYELLOWotheappropriateresponseprocedureisFR-S.2SincethestatusisaYellowcondition,theremainingtreesarecheckedtodetermineifanyRedorOrangeconditionsexist.Ifnoconditioncolor-codedhigherthanYellowexists,thenadecisionsmadewhetherFR-S.2istobeperformedornot.OftenaYellowpathindicatesanoff-normalconditionwhichmayberestoredtosatisfiedstatusbyactionsinprogress.Itmayalsobethecasethattheconditionisexpectedoracceptableforaparticulartransientorevolutioninprogress.Iftheintermediaterangestartuprateismorenegativethan-0.2DPM,thenthedecisionblockisexitedfromtheYESsegment.ThisleadsdirectlytoaGreenterminuswhichisannotatedCSFSAT.TheSubcriticalitySafetyFunctionissatisfiedandtheusermovesontothenexttreeinthesecpxence.Ifinthethirddecisionblockitisdeterminedthatasourcerangeisenergized,theYESexitistakenwhichleadstoanotherdecisionblock.Thistimetheuserisaskedtodetermineifthesourcerangestartuprateiszeroornegative.IfthestartuprateisdeterminedtobepositivetheNOexitistakenwhichleadsdirectlytoaYellowterminus.AgaintheothertreesarecheckedandthenadecisionmaybemadewhetherornottoimplementFR-ST2'fthesourcerangestartuprateisdeterminedtobezeroornegativetheYESsegmentexitleadsdirectlytoaGreenorsatisfiedterminusandtheusermovesonthenextstatustree.

C CSFST:F-0.1TITLE;POWERRANGELESSTHAN5%SUBCRITICALITYNOYESNOINTERMEDIATERANGESURZEROORNEGATIVEYESrt-'g~ve-lSOURCERANGEENERGIZEDINTERMEDIATERANGESURMORENEGATIVETHAN-0.2DPMNOYESSOURCERANGESURZEROORNEGATIVEREv:0PAGE1OFNOYESNOYESGOTOFR-S.1GOTOFR-S.1GOTOFR-S.2CSFSATGOTOFR-S.2CSFSAT 4