ML17263A287
| ML17263A287 | |
| Person / Time | |
|---|---|
| Site: | Ginna  |
| Issue date: | 05/13/1993 |
| From: | MECREDY R C ROCHESTER GAS & ELECTRIC CORP. |
| To: | JOHNSON A R NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM), Office of Nuclear Reactor Regulation |
| References | |
| GL-84-04, GL-84-4, NUDOCS 9305190297 | |
| Download: ML17263A287 (5) | |
Text
ACCELERATFDOCUMENTDISTRIUTIONSYSTEMREGULATINFORMATIONDI'STRIBUTIONSTEM(RIDS)ACCESSIONNBR:9305190297DOC.DATE:93/05/13NOTARIZED:NODOCKETFACIL:50-244RobertEmmetGinnaNuclearPlant,Unit1,RochesterG05000244AUTH.NAMEAUTHORAFFILIATIONMECREDY,R.C.RochesterGas6ElectricCorp.RECIP.NAMERECIPIENTAFFILIATIONJOHNSON,A.R.ProjectDirectorateI-3
SUBJECT:
InformsthatutilinprocessofprocuringreplacementSGsforplant,inreftoNRC,7590-01,"10CFR50ModofGDC-4RequirementsforProtectionAgainstDynamicEffectsofPostulatedPipeRuptures"&GL84-04.DISTRIBUTIONCODE:AOOIDCOPIESRECEIVED:LTRIENCL0SIZE:TITLE:ORSubmittal:GeneralDistributionNOTES:LicenseExpdateinaccordancewith10CFR2,2.109(9/19/72).05000244RECIPIENTIDCODE/NAMEPDl-3LAJOHNSON,AINTERNAL:NRR/DE/EELBNRR/DRCH/HICBNRR/DSSA/SPLBNUDOCS-ABSTRACTOGC/HDSlEXTERNAL:NRCPDRCOPIESLTTRENCLRECIPIENTIDCODE/NAMEPD1-3PDNRR/DORS/OTSBNRR/DSSA/SCSBNRR/DSSA/SRXBOC~BRE@01NSICCOPIESLTTRENCLNOTETOALL"RIDS"RECIPIENTS:PLEASEHELPUSTOREDUCEWASTETHCONTACTTHEDOCUMENTCONTROLDESK,ROOMPl-31(EXT.504-2065)TOELIMINATEYOURNAMEFROMDISTRIBUTIONLISTSFORDOCUMENTSYOUDON'TNEEDITOTALNUMBEROFCOPIESREQUIRED:LTTR16ENCL 10I~
tij/////If/r/////'///~~ROCHESTERGASANDELECTRICCORPORATIONo89EASTAVENUE,ROCHESTERN.Y.14649-0001ROBERTGMECREDYVicePresidentClnnaNuclearProductionTELEPHONEAREACODE7165462700May13,1993U.S.NuclearRegulatoryCommissionDocumentControlDeskAttn:AllenR.JohnsonProjectDirectorateI-3Washington,D.C.20555
Subject:
ApplicationofLeakBeforeBreakTechnology,GDC-4R.E.GinnaNuclearPowerPlantDocketNo.50-244Ref.(a):NuclearRegulatoryCommission,7590-01,"10CFR50ModificationofGeneralDesignCriteria4RequirementsforProtectionAgainstDynamicEffectsofPostulatedPipeRuptures,"StatementofConsiderations.(b):NRCLetter,D.C.DiIannitoR.=W.Kober(RG&E),"DocketNo.50-244,(GenericLetter84-04)",datedSeptember9,1986.
DearMr.Johnson:
RochesterGasandElectricisintheprocessofprocuringreplacementSteamGeneratorsfortheR.E.GinnaNuclearPowerPlant.TheprocessofestablishingthedesignspecificationforthesegeneratorshasledustoconcludethatitisdesirabletoclarifythedesignbasisoftheR.E.GinnaNuclearPowerPlantregardingthedynamiceffectsofprimarysystempiperuptures.InReference(a)theNRCindicatesthatifitcanbedemonstratedthattheprobabilityofpiperuptureisextremelylow,thedynamiceffectsofthepiperupture,i.e.missilegeneration,pipewhipping,pipebreakreactionforces,jetimpingementforces,decompressionwaveswithintherupturedpipeanddynamicornon-staticpressurizationincavities,subcompartmentsandcompartments,canbeexcludedfromthedesignbasisoftheunit.Thestatementofconsiderationsspecificallyexcludestheapplicabilityofthisrulemakingtoemergencycorecoolingsystems,'containments,andenvironmentalqualification.Byreferenceb,theNRCapprovedtheuseofthisrulemakingforprimarysystempipingfortheR.E.GinnaNuclearPowerPlant.Whiletherulemaking(Reference(a))explicitlydiscussespipingsupports,itdoesnotdiscussinternalsofreactorcoolantsystemcomponents.Itisourinterpretationthattherulemakingisagtsiggggptointernalcomponents,aslongasthefunctionalityof9305190297930513PDRADQCN05000244PDR
+l~"I)III4A~~~hlp~PE theEmergencyCoreCoolingSystemorContainmentarenotadverselyaffectedbythecomponent.Itisourintentionthatthedesignbasisforinternal,non-pressureboundarycomponentsofthesteamgenerator,specificallytheprimarysidedividerplate,reflectthisrulemaking.Thereforethedynamiceffectsofprimarysystempipingrupturesneednotbeincludedinthedesignbasisofthisplate.ThisisconsistentwiththeconversationsofMay7and10'993betweenMr.GeorgeWrobel(RGGE)andMr.JamesNorbergandMr.JayRajanoftheNRC.Verytrulyyours,RobertC.MecrdyBJF4284Attachmentxc:Mr.AllenR.Johnson(MailStop14D1)ProjectDirectorateI-3Washington,D.C.20555U.S.NuclearRegulatoryCommissionRegionI475AllendaleRoadKingofPrussia,PA19406GinnaSeniorResidentInspector