ML17263A276

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Rev 3 to EOP FR-S.2, Response to Loss of Core Shutdown.
ML17263A276
Person / Time
Site: Ginna Constellation icon.png
Issue date: 04/14/1993
From: MARLOW T A
ROCHESTER GAS & ELECTRIC CORP.
To:
Shared Package
ML17263A269 List:
References
FR-S.2, NUDOCS 9305140057
Download: ML17263A276 (14)


Text

EOP:FR-S.2RESPONSETOLOSSOFCORESHUTDOWNREV:3PAGE1of5ROCHESTERGASANDELECTRICCORPORATIONGINNASTATIONCONTROLLEDCOPYNUMBERTECHNICALREVIEWPORCREVIEDATEPLANTSUPERINTENDENTEFECTIVEDATECATEGORY1.0REVIEWEDBY:9305i40057930505PDRADOCK05000244~FPDR

FR-S.2RESPONSETOLOSSOFCORESHUTDOWNREV:3PAGE2of5A.PURPOSE-Thisprocedureprovidesactionstorestorethecoretoanadequateshutdowncondition.B.ENTRYCONDITIONS/SYMPTOMS1.ENTRYCONDITIONS-Thisprocedureisenteredfrom:a.F-0.1,SUBCRITICALITYCriticalSafetyFunctionStatusTree,oneitherYELLOWcondition.

EOP:FR-ST2RESPONSETOLOSSOFCORESHUTDOWNREV:3PAGE3of5STEPACTION/EXPECTEDRESPONSERESPONSENOTOBTAINEDNOTE:oAdverseCNMTvaluesshouldbeusedwheneverCNMTpressureisgreaterthan4psigorCNMTradiationisgreaterthan10+5R/hr.oAdverseCNMTconditionsorlossofforcedaircoolingmayresultinfailureofNISdetectors.1CheckIntermediateRangeFlux:a.Flux-EITHERCHANNELLESSTHAN10-10AMPSa.ContinuewithSte~2.WHENfluxisLESSTHAN10ampsonanyoperablechannel,THENdoStepslb,candd.b.Checkthefollowing:oBothintermediaterangechannels-LESSTHAN10AMPSb.Continuewithstep2.WHENeitherconditionmet,THENdoStepslcandd.-OR-oGreaterthan20minutessincereactortripc.VerifysourcerangedetectorsENERGIZEDcdManuallyenergizesourcerangedetectorsbydepressingP-6permissivedefeatpushbuttons(2of2).IFsourcerangescanNOTberestored,THENrefertoER-NIS.1,SRMALFUNCTION,andgotoStep2.d,TransferRk-45recordertoonesour'ce'angeandoneintermediaterangechannel

EOP:FR-Ss2T!TLE:RESPONSETOLOSSOFCORESHUTDOWNREV'PAGE4of5STEPACTION/EXPECTEDRESPONSERESPONSENOTOBTAINEDNOTE:IfoffsitepowerislostcoincidentwithSI,thenMCCCandMCCDlockoutrelaysmustberesettorestoreBAandRMWpumps.2InitiateImmediateBorationOfRCS:a.CheckSIstatus:oAllSIannunciators-EXTINGUISHEDoAllSIpumps-OFFINAUTOb.Verifyatleastonechargingpump-RUNNING!c.Alignborationpath:1)StarttueBAtransferpumps2)OpenMOV-350I3)VerifyBAflow!d.Verifychargingflowpath:!oCh'argingvalvetoloopBcold18g"-'(AOV-294)-OPEN~,g'Ch'argingflowcontrolvalve(HCV-142)-DEMANDAT0%1)CompletetheimmediateactionsofE-O,REACTORTRIPORSAFETYINJECTION,whilecontinuingwiththisprocedure2)IFSIflowindicated,THENgotoStep3.IFNOT,THENgotoStep2b.b.Performthefollowing:1)ResetSIifnecessary.2)Startonechargingpump.c.Initiatenormalborationatmaximumrateusingtheboricacidflowcontrolvalve,FCV-110A.IFflowcanNOTbeestablished,THENrefertoER-CVCS.l,REACTORMAKEUPCONTROLMALFUNCTION.d.Manuallyalignvalvesandverifyflow.

EOP:FR-ST2TITLE:RESPONSETOLOSSOFCORESHUTDOWNREV:3PAGE5of5STEPACTION/EXPECTEDRESPONSERESPONSENOTOBTAINED3CheckSourceRangeChannels:oSourcerangechannels-ENERGIZEDoSourcerangechannelsstartuprate-ZEROORNEGATIVEContinueborationuntiladequateshutdownmarginisverifiedbyRCSsample(RefertoFigureSDM).4VerifyAdequateShutdownMargina.DirectHPtosampleRCSforboronconcentrationIb.Verifyboronconcentration-GREATERTHANREQUIREMENTSOFFIGURESDMb.Continueborationuntiladequateshutdownmarginverified.c.Stopboration5ReturnToProcedureAndStepInEffect.-END-

FR-S.2TITLE%RESPONSETOLOSSOFCORESHUTDOWNREV:3PAGE1of1FR-S.2APPENDIXLISTTITLEPAGES1)FIGURESDM

EOP:FR-ST2TITLE:RESPONSETOLOSSOFCORESHUTDOWNREV:3PAGE1of1FIGURESDMNOTE:oCurveincludesallowanceforonestuckrod.Add100ppmforeachadditionalstuckrod.oToobtaincoreburnup,usePPCSturnoncodeBURNUP.BORONCONCENTRATION(PPM)18001600BORONINCREMENTS20PPM140012001000ADEQUATESDM100PPHCONSERVATISHINCLUDED800600400TEBORA200BURNUPINCREMENTS100MWD/HTU01000200030004000500060007000800090001000011000CYCLE23BURNUP(HWD/HTU)