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{{#Wiki_filter:REGULATORYle<FORMATIONDISTRIBUTIONSYSrM(RIDS)gACCESSIONNBR:7906210193DOC~DATE:79/06/18NOTARIZED:NODOCKET"0F'ACIL:50-240RobertEmmetGinnaNuclearPlantiUnit1pRochesterG05000204AUTH,NAMEAUTHORAFFILIATIONNHITEit~D~RochesterGas8ElectricCorp.RECIP,NAMERECIPIENTAFFILIATIONSTELLOiV,DivisionofOperatingReactorsSUBJECT;ForwardsaddiinforeP>'IRfeedwaterlinesinresponsetoNRC790525request,H/3oversizedrawings,DISTRIBUTIONCODE;A001SCOPIESRECEIYED:LTRENCLSIZE:TITLE:GENERALDISTRIBUTIONFORAFTERISSUANCEOFOPERATINGLICN0TE80~sr~&#x17d;~~y~~m~m~~~j~wek+~~ge/y~~~~yel'pa~~~Qtw~~fyky&4f~~oyelwygmpf~ya\m~g~~~yy~~gowloNwpwohmm~w~~~RECIPIENTRECIPIENTCOPIESID.CODE/NAMEIDCODE/NAME.LTTRENCLACTION:05BCORBWMINTERNAL:01EGFF12I15CORE'ERFBR17ENGRBR19PLANTSYSBR21EFLTTRTSYSEXTERNAL:03LPDR?3ACRS11221111111161602NRCPDRTA/EDO16ADSYS/PROJ18REACSFTYBR20EEB22BRINKMAN04NSIC11111111111111lL>NRS'A~@TOTALNUMBEROFCOPIESREQUIRED:LTTR38ENCL38  
{{#Wiki_filter:REGULATORY le<FORMATION DISTRIBUTION SYSrM(RIDS)gACCESSION NBR:7906210193 DOC~DATE:79/06/18NOTARIZED:
'f~v>0tC yViZZZZIiiiiiiiIiiiil(ssisifkl(/iiiiiiiiiiiiiROCHESTERGASANDELECTRICCORPORATIONo89EASTAVENUE,ROCHESTER,N.Y.14649LEOND,WHITE,JR,VICEPRESIDENTTEI.ERIIONCAREACODETld546-2700June18,1979Mr.VictorStello,Jr.,DirectorU.S.NuclearRegulatoryCommissionDivisionofOperatingReactorsOfficeofNuclearReactorRegulationWashington,D.C.20555
NODOCKET"0F'ACIL:50-240 RobertEmmetGinnaNuclearPlantiUnit1pRochester G05000204AUTH,NAMEAUTHORAFFILIATION NHITEit~D~Rochester Gas8ElectricCorp.RECIP,NAMERECIPIENTAFFILIATION
: STELLOiV, DivisionofOperating ReactorsSUBJECT;ForwardsaddiinforeP>'IRfeedwater linesinresponsetoNRC790525request,H/3 oversizedrawings, DISTRIBUTION CODE;A001SCOPIESRECEIYED:LTR ENCLSIZE:TITLE:GENERALDISTRIBUTION FORAFTERISSUANCEOFOPERATING LICN0TE80~sr~&#x17d;~~y~~m~m~~~j~wek+~~ge/y~~~~yel'pa~~~Qtw~~
fyky&4f~~oyelwygmpf
~ya\m~g~~~yy~~gowloNwpwohmm~w~~~
RECIPIENT RECIPIENT COPIESID.CODE/NAME IDCODE/NAME.
LTTRENCLACTION:05BCORBWMINTERNAL:
01EGFF12I15CORE'ERFBR17ENGRBR19PLANTSYSBR21EFLTTRTSYSEXTERNAL:
03LPDR?3ACRS11221111111161602NRCPDRTA/EDO16ADSYS/PROJ18REACSFTYBR20EEB22BRINKMAN04NSIC11111111111111lL>NRS'A~@TOTALNUMBEROFCOPIESREQUIRED:
LTTR38ENCL38  
'f~v>0tC yViZZZZIiiiiiiiIiii il(ssisifkl(
/iiiiiiiiiiiii ROCHESTER GASANDELECTRICCORPORATION o89EASTAVENUE,ROCHESTER, N.Y.14649LEOND,WHITE,JR,VICEPRESIDENT TEI.ERIIONC AREACODETld546-2700June18,1979Mr.VictorStello,Jr.,DirectorU.S.NuclearRegulatory Commission DivisionofOperating ReactorsOfficeofNuclearReactorRegulation Washington, D.C.20555


==Subject:==
==Subject:==
VictorStello,Jr.letterdatedMay25,1979XnformationRequestedonPWRFeedwaterLinesR.E.GinnaNuclearPowerPlant,UnitNo.1DocketNo.50-244
VictorStello,Jr.letterdatedMay25,1979Xnformation Requested onPWRFeedwater LinesR.E.GinnaNuclearPowerPlant,UnitNo.1DocketNo.50-244


==DearMr.Stello:==
==DearMr.Stello:==
Enclosedisacopyofourresponsetothesubjectletter.Verytrulyyours,PL.D.White,Jr.Enclosure tI44>v)~e,I ResponsetoVictorStello,Jr.LetterDatedMay25,1979InformationRequestedonPWRFeedwaterLinesR.E.GinnaNuclearPowerPlant,UnitNo.1DocketNo.50-244DesicenGilbertAssociatesdrawingD-304-083showsplanviewsofthemainfeedwaterpipingtosteamgeneratorsAandBinsidecontainment.TheelevationviewsareshowninSectionsD-DandA-AonGilbertAssociatesdrawingD-304-084.PipesupportsFW-1,2,4,6,10,81,80,8and7arespringhangers.PiperestraintsFW-3,5,and9aresnubbers.Therearenovalveslocatedinthemainfeedwaterpipinginsidecontainment.DetailsofthepipeandfittingsarecontainedinGilbertAssociatesLineSpecificationNo.900-1.Copiesofthedrawingsandlinespecificationareenclosed.2.(a)TheresultsoftheoriginalpipingstressanalysesforGinnaStationmaybefoundinaJune9,1969submittaltotheAECentitled"AdditionalInformationonSeismicDesignofClassIPiping".Additionalstressanalysesofthemainfeedwaterpipinginsidecontainmentwereperformedin1973and1976.Asummaryofthestressescalculatedinthemostrecentanalysesisshownbelow:ThermalStressPressureStressDeadweightStressSG1AMaximum3979psi2858psi480psiNozzle14882858250SG1BMaximum38462858695Nozzle11842858388(b)FatigueanalyseshavebeenperformedforportionsofthemainsteamandfeedwaterpipingatGinnaStation.However,themainfeedwaterpipinginsidecontainmentwasnotincludedintheseanalyses.FabricationH~istor1.(a)ThefeedwaterringandthermalsleevematerialisASTMA106GradeB.(b)ThesteamgeneratorfeedwaternozzlesareSA336,CodeCase1332,Para.5a-5d.Thismaterialwaslaterincorpo-ratedintheCodeasSA508Class2.(c)ThemainfeedwaterpipingisASTMA106GradeC,seamlesspipewithASTMA234GradeWPBpipefittings.
Enclosedisacopyofourresponsetothesubjectletter.Verytrulyyours,PL.D.White,Jr.Enclosure tI44>v)~e,I ResponsetoVictorStello,Jr.LetterDatedMay25,1979Information Requested onPWRFeedwater LinesR.E.GinnaNuclearPowerPlant,UnitNo.1DocketNo.50-244DesicenGilbertAssociates drawingD-304-083 showsplanviewsofthemainfeedwater pipingtosteamgenerators AandBinsidecontainment.
CA1A)/JlvCIIJ'I 2.(a)Feedwaternozzletopipeelbowweldsweremadeusinggastungstenarcwelding(GTAW)withabackingringfortherootpassandshieldedmetalarcwelding(SMAW)forcom-pletion.ThefillermetalwasE7018.Preheatwasmain-tainedat>200'Fandpostweldheattreatmentwasat1150'F+25'F.TheweldendswereaJ-groovewitha1/16inchlandasshownindetailGofdrawingD-304-084.(b)PipingweldsmadeusingGTAWwithaKinsertfortherootpassandSMAWforcompletion.ThefillermetalwasE7018.PreheatwasmaintainedatP75'Fandpostweldheattreat-,mentat1150'F+25'f.Theweldendswerecompoundgroovewitha1/16inchlandasshownonGilbertAssociatesdrawingB-312-003.(c)Thespargerhasathermalsleevewhichisinstalledintothefeedwaternozzleusingapressfit.3.Thefeedwaternozzletoelbow,elbowtoreducer,andreducertopipingweldsateachsteamgeneratorwereradiographicallyexaminedfollowingoriginalfabrication.ThoseradiographswererecentlyreviewedandfoundacceptableasindicatedintheattachedlettertoJohnC.NoonfromAlbertE.CurtisdatedJune1,1979.4~5.ThefeedwaterpipingwasfabricatedtotherequirementsofASACodeforPressurePiping,B31.1-1955.FeedwaterpipingwasspecifiedasseamlessASTMA106-64GradeCwithsupplementarytestsS2,S3,andS4tobeperformedon'bothendsofonelengthfromeachheat..Preservice/InserviceInsectionand0eratinHistor2.(a)ApreserviceinspectioninaccordancewithASMEBEPVCode,SectionXIwasnotperformed.Hydrostatictestingandradiographicexaminationofthefeedwat,erpipingweldsasindicatedinitemB-3abovewasperformed.TheBsteamgeneratorfeedwaternozzletopipeelbowweldwasexaminedin1976usingthemagneticparticletechniqueandfoundacceptable.(b)The14inchreducertopipeweldneartheBsteamgeneratornozzlewasradiographicallyexaminedin1973andultra-sonicallyexaminedin1976followingwaterhammerandvibrat,ionproblemsdiscussedbelow.Theweldswerefoundtobeacceptable.3.(a)Thefeedwaternozzletoelbow,elbowtoreducer,andreducertopipeweldsateachsteamgeneratorandthetwofeedwaterpipetocontainmentpenetrationweldswillberadiographicallyexaminedduringthe1980refuelingoutage.Theremainderofthefeedwaterpipinginsidecontainmentwillbeexaminedoverthelifeoftheplant.asrequiredbyASMEBGPVCodeSectionXI.
Theelevation viewsareshowninSectionsD-DandA-AonGilbertAssociates drawingD-304-084.
o)'!x,I41N'EP'S'I1l Thefeedwaterpipingweldsoutsidecontainmentarebeinginspectedinaccordancewiththe"InserviceInspectionPlanforHighEnergyPipingWeldsatRobertE.GinnaNuclearPowerStation".Allweldsinthisprogramhavebeenpreviouslyinspectedatleastonce.Alldesignbasisbreaklocationswillbeexaminedoncemoreduringthe10yearinspectioninterval.Two(2)transientswhichcouldbecharacterizedas"waterhammer"haveoccurredinthefeedwatersystematGinnaStation.ThefirsttransientoccurredonJuly22,1973andwasreportedtotheU.S.AtomicEnergyCommissioninaletterdatedAugust21,1973toMr.JohnF.O'eary,Director,DirectorateofLicensing.ThesecondoccurredonJune17,1975andwasreportedtotheU.S.NuclearRegulatoryCommissioninaletterdatedJuly17,1975toMr.RobertT.Carlson,Chief,FacilitiesConstructionandEngineeringSupportBranch,RegionI.FlowinducedvibrationofthesteamandfeedwaterpipingatGinnaStationwasexperiencedduringthefirstfewyearsofplantoperation.Anextensiveprogramofvibra-tionmonitoring,fatigueanalysis,andmodificationwasperformedtoresolvethisproblem.Themodificationsincludedupgradingaswellasadditionofpipesupportsandrestraints.Theresultsoftheanalysesshowedthattheadditionalstressesduetoflowinducedvibrationscouldsafelybeaccommodatedbytheaffectedpipingsystems.TherehavebeentwotypesoffeedwatercontrolusedatGinnaStation.FromstartuptoJanuary1978hydrazineinjectionwasusedtocontrolpHandoxygen.In1978afullflowdeepbedpolishingsystemwasputonlineandpHcontrolwaschangedtoNH4OHaddition.Thecontrolparametersremainedessentiallythesameforbothperiods:1.pH2.dissolvedoxygen3.N2H48.8-9.20-5ppb5-20ppbFromstartupuntilNovember1974smallcondenserleaks(C0.25gpm)weretolerateduntilrepairscouldbemadesincesodiumorchlorideconcentrationincreasesweresmall((1ppb).FromNovember1974untilJanuary1978allvolatiletreatmentwasusedandanydetectableleak(<200cc/min)wasrepairedwithin24hours.Since1978thepolishershavebeeninservicecontinuously.  
PipesupportsFW-1,2,4,6,10,81,80,8and7arespringhangers.Piperestraints FW-3,5,and9aresnubbers.
~4E SP-529112-23-664:2LineSecificationsLineSecificationNo.900-1Rating:1550psig/450~FService:FeedwaterSteamGeneratorVentSteam~PieSeamlessCarbonSteel,ASTMA106-64,GradeC8"andlarger-Schedule1006"andsmaller-Schedule80SupplementarytestsS2,S3andS4shallbeperformedonbothendsofonelengthfromeachheatonallsizes2-1/2"andlarger.F~ittins2-1/2"andlarger-CarbonSteel,ASTMA234,GradeWPB,samescheduleaspipe,buttweld2"andsmaller-Forgedcarbonsteel,ASTMA234>GradeWPBy3000PSIpsocketweldJoints2-1/2"andlarger-Buttweld2"andsmallerFlanged-Socketweld-ForgedCarbonSteel,ASTMA105-64,Grad'eII,2-1/2"andlarger-900j/R.F.weldingneck2"andsmaller-15008socketweldGaskets-FlexitallicgasketStyleCGType304SSandasbestosfillerStudBoltsHexNuts-ASTMA193-62T,GradeB7-ASTMA194-62T,Grade2GILBERTASSOCIATES,INC.
Therearenovalveslocatedinthemainfeedwater pipinginsidecontainment.
SP-529112-23-66ValvesLineSecificationNo.900-1(Cont'd.)RatingEndsConstructionBodyBonnetStemSeating.2"andSmaller600PSISocketWeldOSS(YASTMA105GradeIIBoltedASTMA182GradeF6Stellite2-1/2"andLarer900PSI'uttWeldOSRYASTMA216,GradeWCBPressureSealASTMA182,GradeF6StelliteGILBERTASSOCIATES,INC.
Detailsofthepipeandfittingsarecontained inGilbertAssociates LineSpecification No.900-1.Copiesofthedrawingsandlinespecification areenclosed.
0RochesterGasandElectricCorporationInter-OfFiceCorrespondenceJune1,1979$UgJQQTReviewofFeedwaterPipingtoSteamGeneratorNozzlesRadiographsTO:JackC.Noon,AssistantSuperintendent-GinnaStationOnMay31,1979theradiographsofthefeedwaterpipingtosteamgeneratornozzleweldsforboththeAandBSteamGeneratorwerereviewedtoverifyweldqualityandthattherearenotanystressrisersassociatedwithoriginalendprep,theweldsreviewedwereasfollowsandareshownontheattachedFiguresB-12andB-13:'AS/GFW1001EESFW1001DD10SFW1001DD918"elbowtonozzle18."elbowtoreducerReducerto14"'pipeBS/GFW1005-BB~SFW1005-AA7SFW1005-AA618"elbowtonozzle18"e.lbow.toreducerReducerto14"pipeTheresultsofthisreviewwereverygood.Theseweldsareofexcellentqualityandtheweldendprepsshowasmoothcontourwhencomparingrelativedensitiesacrosstheweldroottotheendoftheweldprep.Therefore,I.wouldcon-cludethattheseweldsareinstalledasdesignedandwouldnotdevelopasimilarproblemashasbeenfoundattheD.C.CookNuclearPlant.Ifyouhaveanyfurtherquestions,pleasecontactme.AlbertE.CurtisIIIWelding6NDEEngineerLevelIII,RT.AEC:dmaE2xc:L.D..White,Jr.L.S.LangB.A.SnowJ.E.Arthur~.R;":Schuler'.C.HustonC.R.AndersonM.J.Saporito H~I FWIOOIXFW1001WFWIOOIZ3-PHFW1001Z3FWIOOIZZFW1001ZIFW1001YFW100124FW1001AAFW1001AAPSSFW1001882-PHSFW1001883FWloolCCFW1001CCPHSFW1001CCISFW1001CC2Og4eFW10012FW100188SFWIOOI882SFWIOOI003SFW1001DD3-PHSFW1001DD4SFWIOOIDD5SFW10010064'pCg/pSFW1001CC2PHFW1001ODFW1001DDPHSFW1001DDISFW1001Oo2SFW1001EESFW1001DDIO/ehISX14REDUCERNOMNALDIAMETERSCIIEOILENNAIMLTHICIQIESSMATERIALSTANNRD14IB1001000.8381.156C/8I4FEEDWATERLOOPASFW1001009/ySrwIOOIOOBSFW1001ODTFEEOWATERR.E.GINNAF.CASTRO.30MAY75A-3084950FIGURE8-12 V~
2.(a)TheresultsoftheoriginalpipingstressanalysesforGinnaStationmaybefoundinaJune9,1969submittal totheAECentitled"Additional Information onSeismicDesignofClassIPiping".Additional stressanalysesofthemainfeedwater pipinginsidecontainment wereperformed in1973and1976.Asummaryofthestressescalculated inthemostrecentanalysesisshownbelow:ThermalStressPressureStressDeadweight StressSG1AMaximum3979psi2858psi480psiNozzle14882858250SG1BMaximum38462858695Nozzle11842858388(b)Fatigueanalyseshavebeenperformed forportionsofthemainsteamandfeedwater pipingatGinnaStation.However,themainfeedwater pipinginsidecontainment wasnotincludedintheseanalyses.
NOMBIALIXAMETERSCHEOVLEHOMINALTHICKNESSMATERIALsfnenko1418"1001000.9581.156C/5C/5SFW100$Aafrw1005-nn-psSFW1005AAIFW1005-AASFW100$AA2SFW1005-21FW1005-WPl1FW1005WFW100$-V-PSsTEAMGENERATORFW100588sFwloosAABSFW1005AASSFW1005-AA4SFW1005-AnsSFW1005-Y2I'W100$-YlFW1005-YSFW1005-X2IB18XI4REOVCERPEH.404CONf.ONSIEET2FW1005WIFW1005XSFW1005-XIFW1005-2SFW1005-Y2-PHSFWICOS-XI-PHX=SUPPORTMEMBERl4FEEDWATERLOOPBINSIDECONTAINMENTSIIEETIOF2FEEOWATERILE.GINNAF.CASTRO29MAY75A-3084948FIGURE8-13}}
Fabrication H~istor1.(a)Thefeedwater ringandthermalsleevematerialisASTMA106GradeB.(b)Thesteamgenerator feedwater nozzlesareSA336,CodeCase1332,Para.5a-5d.Thismaterialwaslaterincorpo-ratedintheCodeasSA508Class2.(c)ThemainfeedwaterpipingisASTMA106GradeC,seamlesspipewithASTMA234GradeWPBpipefittings.
CA1A)/JlvCIIJ'I 2.(a)Feedwater nozzletopipeelbowweldsweremadeusinggastungstenarcwelding(GTAW)withabackingringfortherootpassandshieldedmetalarcwelding(SMAW)forcom-pletion.ThefillermetalwasE7018.Preheatwasmain-tainedat>200'Fandpostweldheattreatment wasat1150'F+25'F.TheweldendswereaJ-groovewitha1/16inchlandasshownindetailGofdrawingD-304-084.
(b)PipingweldsmadeusingGTAWwithaKinsertfortherootpassandSMAWforcompletion.
ThefillermetalwasE7018.Preheatwasmaintained atP75'Fandpostweldheattreat-,mentat1150'F+25'f.Theweldendswerecompoundgroovewitha1/16inchlandasshownonGilbertAssociates drawingB-312-003.
(c)Thespargerhasathermalsleevewhichisinstalled intothefeedwater nozzleusingapressfit.3.Thefeedwater nozzletoelbow,elbowtoreducer,andreducertopipingweldsateachsteamgenerator wereradiographically examinedfollowing originalfabrication.
Thoseradiographs wererecentlyreviewedandfoundacceptable asindicated intheattachedlettertoJohnC.NoonfromAlbertE.CurtisdatedJune1,1979.4~5.Thefeedwater pipingwasfabricated totherequirements ofASACodeforPressurePiping,B31.1-1955.
Feedwater pipingwasspecified asseamlessASTMA106-64GradeCwithsupplementary testsS2,S3,andS4tobeperformed on'bothendsofonelengthfromeachheat..Preservice/Inservice Insectionand0eratinHistor2.(a)Apreservice inspection inaccordance withASMEBEPVCode,SectionXIwasnotperformed.
Hydrostatic testingandradiographic examination ofthefeedwat,er pipingweldsasindicated initemB-3abovewasperformed.
TheBsteamgenerator feedwater nozzletopipeelbowweldwasexaminedin1976usingthemagneticparticletechnique andfoundacceptable.
(b)The14inchreducertopipeweldneartheBsteamgenerator nozzlewasradiographically examinedin1973andultra-sonically examinedin1976following waterhammerandvibrat,ion problemsdiscussed below.Theweldswerefoundtobeacceptable.
3.(a)Thefeedwater nozzletoelbow,elbowtoreducer,andreducertopipeweldsateachsteamgenerator andthetwofeedwater pipetocontainment penetration weldswillberadiographically examinedduringthe1980refueling outage.Theremainder ofthefeedwater pipinginsidecontainment willbeexaminedoverthelifeoftheplant.asrequiredbyASMEBGPVCodeSectionXI.
o)'!x,I41N'EP'S'I1l Thefeedwaterpipingweldsoutsidecontainment arebeinginspected inaccordance withthe"Inservice Inspection PlanforHighEnergyPipingWeldsatRobertE.GinnaNuclearPowerStation".
Allweldsinthisprogramhavebeenpreviously inspected atleastonce.Alldesignbasisbreaklocations willbeexaminedoncemoreduringthe10yearinspection interval.
Two(2)transients whichcouldbecharacterized as"waterhammer"haveoccurredinthefeedwater systematGinnaStation.Thefirsttransient occurredonJuly22,1973andwasreportedtotheU.S.AtomicEnergyCommission inaletterdatedAugust21,1973toMr.JohnF.O'eary,Director, Directorate ofLicensing.
ThesecondoccurredonJune17,1975andwasreportedtotheU.S.NuclearRegulatory Commission inaletterdatedJuly17,1975toMr.RobertT.Carlson,Chief,Facilities Construction andEngineering SupportBranch,RegionI.Flowinducedvibration ofthesteamandfeedwater pipingatGinnaStationwasexperienced duringthefirstfewyearsofplantoperation.
Anextensive programofvibra-tionmonitoring, fatigueanalysis, andmodification wasperformed toresolvethisproblem.Themodifications includedupgrading aswellasadditionofpipesupportsandrestraints.
Theresultsoftheanalysesshowedthattheadditional stressesduetoflowinducedvibrations couldsafelybeaccommodated bytheaffectedpipingsystems.Therehavebeentwotypesoffeedwater controlusedatGinnaStation.FromstartuptoJanuary1978hydrazine injection wasusedtocontrolpHandoxygen.In1978afullflowdeepbedpolishing systemwasputonlineandpHcontrolwaschangedtoNH4OHaddition.
Thecontrolparameters remainedessentially thesameforbothperiods:1.pH2.dissolved oxygen3.N2H48.8-9.20-5ppb5-20ppbFromstartupuntilNovember1974smallcondenser leaks(C0.25gpm)weretolerated untilrepairscouldbemadesincesodiumorchlorideconcentration increases weresmall((1ppb).FromNovember1974untilJanuary1978allvolatiletreatment wasusedandanydetectable leak(<200cc/min)wasrepairedwithin24hours.Since1978thepolishers havebeeninservicecontinuously.  
~4E SP-529112-23-664:2LineSecifications LineSecification No.900-1Rating:1550psig/450~F Service:Feedwater SteamGenerator VentSteam~PieSeamlessCarbonSteel,ASTMA106-64,GradeC8"andlarger-Schedule1006"andsmaller-Schedule80Supplementary testsS2,S3andS4shallbeperformed onbothendsofonelengthfromeachheatonallsizes2-1/2"andlarger.F~ittins2-1/2"andlarger-CarbonSteel,ASTMA234,GradeWPB,samescheduleaspipe,buttweld2"andsmaller-Forgedcarbonsteel,ASTMA234>GradeWPBy3000PSIpsocketweldJoints2-1/2"andlarger-Buttweld2"andsmallerFlanged-Socketweld-ForgedCarbonSteel,ASTMA105-64,Grad'eII,2-1/2"andlarger-900j/R.F.weldingneck2"andsmaller-15008socketweldGaskets-Flexitallic gasketStyleCGType304SSandasbestosfillerStudBoltsHexNuts-ASTMA193-62T, GradeB7-ASTMA194-62T, Grade2GILBERTASSOCIATES, INC.
SP-529112-23-66ValvesLineSecification No.900-1(Cont'd.)
RatingEndsConstruction BodyBonnetStemSeating.2"andSmaller600PSISocketWeldOSS(YASTMA105GradeIIBoltedASTMA182GradeF6Stellite2-1/2"andLarer900PSI'uttWeldOSRYASTMA216,GradeWCBPressureSealASTMA182,GradeF6StelliteGILBERTASSOCIATES, INC.
0Rochester GasandElectricCorporation Inter-OfFice Correspondence June1,1979$UgJQQTReviewofFeedwater PipingtoSteamGenerator NozzlesRadiographs TO:JackC.Noon,Assistant Superintendent
-GinnaStationOnMay31,1979theradiographs ofthefeedwater pipingtosteamgenerator nozzleweldsforboththeAandBSteamGenerator werereviewedtoverifyweldqualityandthattherearenotanystressrisersassociated withoriginalendprep,theweldsreviewedwereasfollowsandareshownontheattachedFiguresB-12andB-13:'AS/GFW1001EESFW1001DD10 SFW1001DD9 18"elbowtonozzle18."elbowtoreducerReducerto14"'pipeBS/GFW1005-BB
~SFW1005-AA7 SFW1005-AA6 18"elbowtonozzle18"e.lbow.toreducerReducerto14"pipeTheresultsofthisreviewwereverygood.Theseweldsareofexcellent qualityandtheweldendprepsshowasmoothcontourwhencomparing relativedensities acrosstheweldroottotheendoftheweldprep.Therefore, I.wouldcon-cludethattheseweldsareinstalled asdesignedandwouldnotdevelopasimilarproblemashasbeenfoundattheD.C.CookNuclearPlant.Ifyouhaveanyfurtherquestions, pleasecontactme.AlbertE.CurtisIIIWelding6NDEEngineerLevelIII,RT.AEC:dmaE2 xc:L.D..White, Jr.L.S.LangB.A.SnowJ.E.Arthur~.R;":Schuler'.
C.HustonC.R.AndersonM.J.Saporito H~I FWIOOIXFW1001WFWIOOIZ3-PHFW1001Z3FWIOOIZZFW1001ZIFW1001YFW100124FW1001AAFW1001AAPSSFW1001882-PHSFW1001883FWloolCCFW1001CCPHSFW1001CCISFW1001CC2Og4eFW10012FW100188SFWIOOI882SFWIOOI003SFW1001DD3-PHSFW1001DD4SFWIOOIDD5SFW10010064'pCg/pSFW1001CC2PHFW1001ODFW1001DDPHSFW1001DDISFW1001Oo2SFW1001EESFW1001DDIO/ehISX14REDUCERNOMNALDIAMETERSCIIEOILENNAIMLTHICIQIESS MATERIALSTANNRD14IB1001000.8381.156C/8I4FEEDWATER LOOPASFW1001009/ySrwIOOIOOBSFW1001ODTFEEOWATERR.E.GINNAF.CASTRO.30MAY75A-3084950FIGURE8-12 V~
NOMBIALIXAMETERSCHEOVLEHOMINALTHICKNESS MATERIALsfnenko1418"1001000.9581.156C/5C/5SFW100$Aafrw1005-nn-ps SFW1005AAIFW1005-AASFW100$AA2SFW1005-21FW1005-WPl1FW1005WFW100$-V-PSsTEAMGENERATOR FW100588sFwloosAABSFW1005AASSFW1005-AA4SFW1005-AnsSFW1005-Y2I'W100$-YlFW1005-YSFW1005-X2IB18XI4REOVCERPEH.404CONf.ONSIEET2FW1005WIFW1005XSFW1005-XIFW1005-2SFW1005-Y2-PH SFWICOS-XI-PH X=SUPPORTMEMBERl4FEEDWATERLOOPBINSIDECONTAINMEN TSIIEETIOF2FEEOWATER ILE.GINNAF.CASTRO29MAY75A-3084948FIGURE8-13}}

Revision as of 15:03, 29 June 2018

Forwards Addl Info Re PWR Feedwater Lines in Response to NRC 790525 request.W/3 Oversized Drawings
ML17244A558
Person / Time
Site: Ginna Constellation icon.png
Issue date: 06/18/1979
From: WHITE L D
ROCHESTER GAS & ELECTRIC CORP.
To: STELLO V
Office of Nuclear Reactor Regulation
References
NUDOCS 7906210193
Download: ML17244A558 (17)
v • d • e


Text

REGULATORY le<FORMATION DISTRIBUTION SYSrM(RIDS)gACCESSION NBR:7906210193 DOC~DATE:79/06/18NOTARIZED:

NODOCKET"0F'ACIL:50-240 RobertEmmetGinnaNuclearPlantiUnit1pRochester G05000204AUTH,NAMEAUTHORAFFILIATION NHITEit~D~Rochester Gas8ElectricCorp.RECIP,NAMERECIPIENTAFFILIATION

STELLOiV, DivisionofOperating ReactorsSUBJECT;ForwardsaddiinforeP>'IRfeedwater linesinresponsetoNRC790525request,H/3 oversizedrawings, DISTRIBUTION CODE;A001SCOPIESRECEIYED:LTR ENCLSIZE:TITLE:GENERALDISTRIBUTION FORAFTERISSUANCEOFOPERATING LICN0TE80~sr~Ž~~y~~m~m~~~j~wek+~~ge/y~~~~yel'pa~~~Qtw~~

fyky&4f~~oyelwygmpf

~ya\m~g~~~yy~~gowloNwpwohmm~w~~~

RECIPIENT RECIPIENT COPIESID.CODE/NAME IDCODE/NAME.

LTTRENCLACTION:05BCORBWMINTERNAL:

01EGFF12I15CORE'ERFBR17ENGRBR19PLANTSYSBR21EFLTTRTSYSEXTERNAL:

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/iiiiiiiiiiiii ROCHESTER GASANDELECTRICCORPORATION o89EASTAVENUE,ROCHESTER, N.Y.14649LEOND,WHITE,JR,VICEPRESIDENT TEI.ERIIONC AREACODETld546-2700June18,1979Mr.VictorStello,Jr.,DirectorU.S.NuclearRegulatory Commission DivisionofOperating ReactorsOfficeofNuclearReactorRegulation Washington, D.C.20555

Subject:

VictorStello,Jr.letterdatedMay25,1979Xnformation Requested onPWRFeedwater LinesR.E.GinnaNuclearPowerPlant,UnitNo.1DocketNo.50-244

DearMr.Stello:

Enclosedisacopyofourresponsetothesubjectletter.Verytrulyyours,PL.D.White,Jr.Enclosure tI44>v)~e,I ResponsetoVictorStello,Jr.LetterDatedMay25,1979Information Requested onPWRFeedwater LinesR.E.GinnaNuclearPowerPlant,UnitNo.1DocketNo.50-244DesicenGilbertAssociates drawingD-304-083 showsplanviewsofthemainfeedwater pipingtosteamgenerators AandBinsidecontainment.

Theelevation viewsareshowninSectionsD-DandA-AonGilbertAssociates drawingD-304-084.

PipesupportsFW-1,2,4,6,10,81,80,8and7arespringhangers.Piperestraints FW-3,5,and9aresnubbers.

Therearenovalveslocatedinthemainfeedwater pipinginsidecontainment.

Detailsofthepipeandfittingsarecontained inGilbertAssociates LineSpecification No.900-1.Copiesofthedrawingsandlinespecification areenclosed.

2.(a)TheresultsoftheoriginalpipingstressanalysesforGinnaStationmaybefoundinaJune9,1969submittal totheAECentitled"Additional Information onSeismicDesignofClassIPiping".Additional stressanalysesofthemainfeedwater pipinginsidecontainment wereperformed in1973and1976.Asummaryofthestressescalculated inthemostrecentanalysesisshownbelow:ThermalStressPressureStressDeadweight StressSG1AMaximum3979psi2858psi480psiNozzle14882858250SG1BMaximum38462858695Nozzle11842858388(b)Fatigueanalyseshavebeenperformed forportionsofthemainsteamandfeedwater pipingatGinnaStation.However,themainfeedwater pipinginsidecontainment wasnotincludedintheseanalyses.

Fabrication H~istor1.(a)Thefeedwater ringandthermalsleevematerialisASTMA106GradeB.(b)Thesteamgenerator feedwater nozzlesareSA336,CodeCase1332,Para.5a-5d.Thismaterialwaslaterincorpo-ratedintheCodeasSA508Class2.(c)ThemainfeedwaterpipingisASTMA106GradeC,seamlesspipewithASTMA234GradeWPBpipefittings.

CA1A)/JlvCIIJ'I 2.(a)Feedwater nozzletopipeelbowweldsweremadeusinggastungstenarcwelding(GTAW)withabackingringfortherootpassandshieldedmetalarcwelding(SMAW)forcom-pletion.ThefillermetalwasE7018.Preheatwasmain-tainedat>200'Fandpostweldheattreatment wasat1150'F+25'F.TheweldendswereaJ-groovewitha1/16inchlandasshownindetailGofdrawingD-304-084.

(b)PipingweldsmadeusingGTAWwithaKinsertfortherootpassandSMAWforcompletion.

ThefillermetalwasE7018.Preheatwasmaintained atP75'Fandpostweldheattreat-,mentat1150'F+25'f.Theweldendswerecompoundgroovewitha1/16inchlandasshownonGilbertAssociates drawingB-312-003.

(c)Thespargerhasathermalsleevewhichisinstalled intothefeedwater nozzleusingapressfit.3.Thefeedwater nozzletoelbow,elbowtoreducer,andreducertopipingweldsateachsteamgenerator wereradiographically examinedfollowing originalfabrication.

Thoseradiographs wererecentlyreviewedandfoundacceptable asindicated intheattachedlettertoJohnC.NoonfromAlbertE.CurtisdatedJune1,1979.4~5.Thefeedwater pipingwasfabricated totherequirements ofASACodeforPressurePiping,B31.1-1955.

Feedwater pipingwasspecified asseamlessASTMA106-64GradeCwithsupplementary testsS2,S3,andS4tobeperformed on'bothendsofonelengthfromeachheat..Preservice/Inservice Insectionand0eratinHistor2.(a)Apreservice inspection inaccordance withASMEBEPVCode,SectionXIwasnotperformed.

Hydrostatic testingandradiographic examination ofthefeedwat,er pipingweldsasindicated initemB-3abovewasperformed.

TheBsteamgenerator feedwater nozzletopipeelbowweldwasexaminedin1976usingthemagneticparticletechnique andfoundacceptable.

(b)The14inchreducertopipeweldneartheBsteamgenerator nozzlewasradiographically examinedin1973andultra-sonically examinedin1976following waterhammerandvibrat,ion problemsdiscussed below.Theweldswerefoundtobeacceptable.

3.(a)Thefeedwater nozzletoelbow,elbowtoreducer,andreducertopipeweldsateachsteamgenerator andthetwofeedwater pipetocontainment penetration weldswillberadiographically examinedduringthe1980refueling outage.Theremainder ofthefeedwater pipinginsidecontainment willbeexaminedoverthelifeoftheplant.asrequiredbyASMEBGPVCodeSectionXI.

o)'!x,I41N'EP'S'I1l Thefeedwaterpipingweldsoutsidecontainment arebeinginspected inaccordance withthe"Inservice Inspection PlanforHighEnergyPipingWeldsatRobertE.GinnaNuclearPowerStation".

Allweldsinthisprogramhavebeenpreviously inspected atleastonce.Alldesignbasisbreaklocations willbeexaminedoncemoreduringthe10yearinspection interval.

Two(2)transients whichcouldbecharacterized as"waterhammer"haveoccurredinthefeedwater systematGinnaStation.Thefirsttransient occurredonJuly22,1973andwasreportedtotheU.S.AtomicEnergyCommission inaletterdatedAugust21,1973toMr.JohnF.O'eary,Director, Directorate ofLicensing.

ThesecondoccurredonJune17,1975andwasreportedtotheU.S.NuclearRegulatory Commission inaletterdatedJuly17,1975toMr.RobertT.Carlson,Chief,Facilities Construction andEngineering SupportBranch,RegionI.Flowinducedvibration ofthesteamandfeedwater pipingatGinnaStationwasexperienced duringthefirstfewyearsofplantoperation.

Anextensive programofvibra-tionmonitoring, fatigueanalysis, andmodification wasperformed toresolvethisproblem.Themodifications includedupgrading aswellasadditionofpipesupportsandrestraints.

Theresultsoftheanalysesshowedthattheadditional stressesduetoflowinducedvibrations couldsafelybeaccommodated bytheaffectedpipingsystems.Therehavebeentwotypesoffeedwater controlusedatGinnaStation.FromstartuptoJanuary1978hydrazine injection wasusedtocontrolpHandoxygen.In1978afullflowdeepbedpolishing systemwasputonlineandpHcontrolwaschangedtoNH4OHaddition.

Thecontrolparameters remainedessentially thesameforbothperiods:1.pH2.dissolved oxygen3.N2H48.8-9.20-5ppb5-20ppbFromstartupuntilNovember1974smallcondenser leaks(C0.25gpm)weretolerated untilrepairscouldbemadesincesodiumorchlorideconcentration increases weresmall((1ppb).FromNovember1974untilJanuary1978allvolatiletreatment wasusedandanydetectable leak(<200cc/min)wasrepairedwithin24hours.Since1978thepolishers havebeeninservicecontinuously.

~4E SP-529112-23-664:2LineSecifications LineSecification No.900-1Rating:1550psig/450~F Service:Feedwater SteamGenerator VentSteam~PieSeamlessCarbonSteel,ASTMA106-64,GradeC8"andlarger-Schedule1006"andsmaller-Schedule80Supplementary testsS2,S3andS4shallbeperformed onbothendsofonelengthfromeachheatonallsizes2-1/2"andlarger.F~ittins2-1/2"andlarger-CarbonSteel,ASTMA234,GradeWPB,samescheduleaspipe,buttweld2"andsmaller-Forgedcarbonsteel,ASTMA234>GradeWPBy3000PSIpsocketweldJoints2-1/2"andlarger-Buttweld2"andsmallerFlanged-Socketweld-ForgedCarbonSteel,ASTMA105-64,Grad'eII,2-1/2"andlarger-900j/R.F.weldingneck2"andsmaller-15008socketweldGaskets-Flexitallic gasketStyleCGType304SSandasbestosfillerStudBoltsHexNuts-ASTMA193-62T, GradeB7-ASTMA194-62T, Grade2GILBERTASSOCIATES, INC.

SP-529112-23-66ValvesLineSecification No.900-1(Cont'd.)

RatingEndsConstruction BodyBonnetStemSeating.2"andSmaller600PSISocketWeldOSS(YASTMA105GradeIIBoltedASTMA182GradeF6Stellite2-1/2"andLarer900PSI'uttWeldOSRYASTMA216,GradeWCBPressureSealASTMA182,GradeF6StelliteGILBERTASSOCIATES, INC.

0Rochester GasandElectricCorporation Inter-OfFice Correspondence June1,1979$UgJQQTReviewofFeedwater PipingtoSteamGenerator NozzlesRadiographs TO:JackC.Noon,Assistant Superintendent

-GinnaStationOnMay31,1979theradiographs ofthefeedwater pipingtosteamgenerator nozzleweldsforboththeAandBSteamGenerator werereviewedtoverifyweldqualityandthattherearenotanystressrisersassociated withoriginalendprep,theweldsreviewedwereasfollowsandareshownontheattachedFiguresB-12andB-13:'AS/GFW1001EESFW1001DD10 SFW1001DD9 18"elbowtonozzle18."elbowtoreducerReducerto14"'pipeBS/GFW1005-BB

~SFW1005-AA7 SFW1005-AA6 18"elbowtonozzle18"e.lbow.toreducerReducerto14"pipeTheresultsofthisreviewwereverygood.Theseweldsareofexcellent qualityandtheweldendprepsshowasmoothcontourwhencomparing relativedensities acrosstheweldroottotheendoftheweldprep.Therefore, I.wouldcon-cludethattheseweldsareinstalled asdesignedandwouldnotdevelopasimilarproblemashasbeenfoundattheD.C.CookNuclearPlant.Ifyouhaveanyfurtherquestions, pleasecontactme.AlbertE.CurtisIIIWelding6NDEEngineerLevelIII,RT.AEC:dmaE2 xc:L.D..White, Jr.L.S.LangB.A.SnowJ.E.Arthur~.R;":Schuler'.

C.HustonC.R.AndersonM.J.Saporito H~I FWIOOIXFW1001WFWIOOIZ3-PHFW1001Z3FWIOOIZZFW1001ZIFW1001YFW100124FW1001AAFW1001AAPSSFW1001882-PHSFW1001883FWloolCCFW1001CCPHSFW1001CCISFW1001CC2Og4eFW10012FW100188SFWIOOI882SFWIOOI003SFW1001DD3-PHSFW1001DD4SFWIOOIDD5SFW10010064'pCg/pSFW1001CC2PHFW1001ODFW1001DDPHSFW1001DDISFW1001Oo2SFW1001EESFW1001DDIO/ehISX14REDUCERNOMNALDIAMETERSCIIEOILENNAIMLTHICIQIESS MATERIALSTANNRD14IB1001000.8381.156C/8I4FEEDWATER LOOPASFW1001009/ySrwIOOIOOBSFW1001ODTFEEOWATERR.E.GINNAF.CASTRO.30MAY75A-3084950FIGURE8-12 V~

NOMBIALIXAMETERSCHEOVLEHOMINALTHICKNESS MATERIALsfnenko1418"1001000.9581.156C/5C/5SFW100$Aafrw1005-nn-ps SFW1005AAIFW1005-AASFW100$AA2SFW1005-21FW1005-WPl1FW1005WFW100$-V-PSsTEAMGENERATOR FW100588sFwloosAABSFW1005AASSFW1005-AA4SFW1005-AnsSFW1005-Y2I'W100$-YlFW1005-YSFW1005-X2IB18XI4REOVCERPEH.404CONf.ONSIEET2FW1005WIFW1005XSFW1005-XIFW1005-2SFW1005-Y2-PH SFWICOS-XI-PH X=SUPPORTMEMBERl4FEEDWATERLOOPBINSIDECONTAINMEN TSIIEETIOF2FEEOWATER ILE.GINNAF.CASTRO29MAY75A-3084948FIGURE8-13

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