ML17258A306
| ML17258A306 | |
| Person / Time | |
|---|---|
| Site: | Ginna  |
| Issue date: | 11/06/1981 |
| From: | MAIER J E ROCHESTER GAS & ELECTRIC CORP. |
| To: | CRUTCHFIELD D Office of Nuclear Reactor Regulation |
| References | |
| RTR-NUREG-0737, RTR-NUREG-737, TASK-2.B.1, TASK-2.B.3, TASK-2.D.3, TASK-2.E.1.2, TASK-2.E.3.1, TASK-2.E.4.1, TASK-2.E.4.2, TASK-2.F.2, TASK-2.G.1, TASK-2.K.3.09, TASK-2.K.3.12, TASK-TM NUDOCS 8111130471 | |
| Download: ML17258A306 (9) | |
Text
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////I//I/I 8P.'::,ROCHESTER GASANDELECTRICCORPORATION o89EASTAVENUE,ROCHESTER, N.Y.14649JOHNE.MAIERVICCPRESIDENT TCLCDNONC ARCACODCTla546-2700November6,1981DirectorofNuclearReactorRegulation Attention:
Mr.DennisM.Crutchfield, ChiefOperating ReactorsBranchNo.5U.S.NuclearRegulatory Commission Washington, D.C.20555/If"'~~~eel~:
Subject:
Environmental Qualification ofElectrical Equipment R.E.GinnaNuclearPowerPlantDocketNo.50-244
DearMr.Crutchfield:
Rochester GasandElectricsubmitted environmental qualifi-cationinformation relativetoinstalled "TMIitems"byletterdatedJanuary30,1981.Recently, theNRCconsultants, FranklinResearchCenter,requested thatweresubmitthisinformation, aswellasprovidethestatusofseveralotherNUREG-0737 items.Thisinformation isenclosed.
Thequalification documentation isbeingprovidedonlytoMr.CyrilCraneofFRC.RG&Ealsotakesthisopportunity tonotethatafailureevaluation oftheDB-50breakers(usedforreactortrip)underadverseconditions suchashightemperature, highhumidity,
- flooding, andvibration isprovidedinSection3.5ofWCAP-7706-L, "AnEvaluation ofSolidStateLogicReactorProtection inAnticipated Transients" byW.C.GangloffandW.D.Loftus,datedJuly1971.Althoughqualitative innature,thisreportdoesprovideadditional indication that.thereactortripbreakerswouldperformtheirfunction(fail-safe) intheshort.timetheyarerequired.
ThisWCAPisinthepossession oftheNRC,andshouldbeprovidedtoFRC.Thisexplanation shouldresolveitem-28bofRG&E'sSeptember 4,1981"90-day-response" totheNRC/FRCEnvironmental Qualification Evaluation forGinna.Verytrulyyours,,'DR~>aiii06p<DOCKOSOOOpyyPDREnclosure xc:CyrilCrane,FRCE.Maier~lII 0Dv'~p,res()ll')ikhP Enclosure toLetterfromJohnE.MaiertoDennisM.Crutchfield, "Environmental Qualification ofElectrical Equipment,"
November6,1981NUREG-0737 ItemStatus1.II.B.1HeadVentSytem-Thesolenoidvalvescontrolling theheadventsystemarefullyqualified forpost-accident, operation insidecontainment.
.Thisqualification reportentitled"Qualification Test.ReportforIEEEClassIESolenoidValves",QR52600-5940-.2 is.beingsubmitted totheNRCconsultants, FranklinResearchCenter.Thisshouldbedesignated Reference 2.73.Itshouldbenotedthatthissystemis'required tobeinstalled byJuly1,1982undertheNUREG-0737 schedule.
2.II-B.3Post-accident sampling-Thepost-accident samplingsystemisnotyetinstalled atGinna.Thescheduled imple-mentation dateisJuly1,1982.Nodocumentation isthusrequiredatthistime.3.II-D.3DirectIndication ofValvePosition-Positionindication forthepressurizer safetyandreliefvalvesisprovidedviaLVDTsandNAMCOlimitswitches, respectively, asstatedinRG&E'sletterofJanuary30,1981fromJohnE.MaiertoDarrellG.EisenhutoftheNRC.Theseitemsarelocatedinaharshenvironment (thecontainment).
Thefollowing qualification documentation isbeingprovideddirectlytotheNRCconsultants, FranklinResearchCenter,togetherwithacopyofthissubmittal:
(1)Reference 2.74:Environment, Qualification Report,onPressurizer SafetyValvePositionIndication System,'innaStation,DirectIndication ofValvePosition(2)Reference 2.75:NAMCOTestReport,April3,19804.II.E.1.2Auxiliary feedwater initiation andflow-Theauxiliary feedwater initiation systematGinnahasalwaysbeensafety-grade.
Nomodifications tothesystemwererequiredastheresultofNUREG-0737.
Theauxiliary feed-watersystemisinitiated byaSafetyInjection signal,aswellaslowsteamgenerator waterlevel,lossof4Kvbusvoltage,andfeedwater pumpbreakers"open".Theselattertwosignalsareinitiated byinstrumentation intheturbinebuilding, whichisa"mildenvironment" undertransient conditions forwhichthisinstrumentation isinstalled.
Theinstrumentation generating aSafetyInjection signal,aswellassteamgenerator level,wasdiscussed inRGSE'sprevioussubmittals, andnoadditional information isre-quired.RGSEhaspreviously committed toreplacethosetransmitters locatedinaharshenvironment (seeRG&E'sOctober31,1980andSeptember 4,1981lettersforthelatestcommitment statusforthisequipment).
P-WI4*Illt Auxiliary feedwater flowindication isprovidedbytheFoxboroNE-10seriestransmitters, whicharelocatedintheIntermediate Buildinginthevicinityoftheauxiliary feedwater pumps.Thesetransmitters arethesameasthosewhichRG&Ehascommitted toinstalltoreplacethetrans-mittersrequiring environmental qualification, asnotedinourOctober31,1980submittal.
Thesetransmitters arestillundergoing finalqualification testing.Itshouldbenotedthat,asstatedinRG&E'sOctober31,1980submittal, theStandbyAuxiliary Feedwater System,locatedinamildenvironment, issufficient toprovideallrequiredauxiliary feedwater systemsafetyfunctions.
Environmental qualification ofauxilaryfeedwater systemcomponents isdesirable, butnotnecessary.
II.E.3.1Emergency PowerforPressurizer heaters-ThisTMIrequirement, focusesontheavailability ofemergency powertopressurizer heaters.Thisisaccomplished attheemergency electrical buses,whicharelocatedintheauxiliary
- building, amildenvironment.
Noharshenvironment qualification documentation isrequiredtobeprovided.
II.E.4.1Dedicated hydrogenpenetrations
-Thisrequirement isnotapplicable toGinna,sinceGinnahasredundant hydrogenrecombiners insidecontainment.
II.E.4.2Containment Isolation dependability
-ThisTMIrequirement focusesonlyonequipment installed inthecontrolandrelayroomsat,Ginna.Sincethese.areasaresubjectonlytoa"mild"environment, noharshenvironment qualification documentation isrequiredtobesubmitted.
II.F.2Detection ofInadequate CoreCooling-AsnotedinRGB'sJanuary30,1981letter,thisisprovidedbyacombi-nationofhotlegRTD'sandreactorcoolant,pressureinstru-mentation.
RGB'sOctober31,1980letterprovidedourplansforthequalification ofthisinstrumentation.
II.G.1Emergency PowertoPressurizer Equipment
-ThisTMIrequirement focusesontheavailability ofemergency powertopressurizer equipment.
Thisisaccomplished attheemergency electrical buses,whicharelocatedintheauxiliary buildingoperating andintermediate floors(elevations 271and253).Theseareasaresubjectonlytoa"mild"environment.
Nodocumentation regarding qualification toaharshenvironment, isthusrequired.
II.K.3.9PIDController
-Asnotedin9above,thisTMIreviewfocusesonlyonequipment locatedina"mild"environment (therelayroom).Nodocumentation regarding qualification toaharshenvironment isthusrequired.
~JJ51 11.II.K.3.12 Anticipatory"turbine triporreactortrip-Asnotedin9above,thisTMIreviewfocusesonlyonequipment locatedina"mild"environment (therelayroom).Nodocumentation regarding qualification toaharshenvironment isthusrequired.
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