ML17212B589

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Submits Addl Info Re Seismic Qualification of Auxiliary Feedwater Sys in Response to Generic Ltr 81-14
ML17212B589
Person / Time
Site: Millstone, Saint Lucie  NextEra Energy icon.png
Issue date: 05/06/1982
From: UHRIG R E
FLORIDA POWER & LIGHT CO.
To: CLARK R A
Office of Nuclear Reactor Regulation
References
GL-81-14, GL-82-186, L-82-186, NUDOCS 8205110155
Download: ML17212B589 (6)


Text

0~~kAREGULATORY INFLATION DISTRIBUTION SYSTEMWIDE)

ACCESSION NBR!8205110155 DOC~DA'TE!'82/05/06 NOTARIZED:

NOFACIL;50335St~Lucie'Plantr,Uni~t1<FloridaPower5LightCo,'AUTH~NAMEAUTHORAFFILIATION UHRIGFR~E~FloradaPower,8LightCo,REiCIP~NAMERECIPIENT AFFILIATION CLARKFR~A,Operating ReactorsBranch3DOCKET,05000335

SUBJECT:

"Submits.addiinforeseismicqualification of.auxiliary feedwater sys'inresponsetoGenericLtr'8114'ISTRIBUTION:CODE:

A09SSCOPIES'RECEIVED:LTR 3.ENCLQSIZE'.8'ITLE:Equipment Aual-ification(ORKUNPREOL)NOTES:RECIPIENT-IDCODE/NAME ORB03BC,12INTERNAL:

ELD12IE"'FILE.09NRR/DE/EQB 07NRR/DL/ORAB 060QiCOPIESLTTRENCL11211RECIPIENT IDCODE/NAME NELSONFG~01GC13NRRCALVOFJNRR/DLDIR14NRR/DSI/AEBRGN2COPIESLVTRENCL11111EXTERNAL:

ACRSNRCPDRNTIS150231101'1LPDRNSIC03050:TOTALNUMBEROFCOPIESREQUIRED'TTR 27'ENCL 4I~~IgI'Ij~

P'3OX529100MIAMI,FL33152FLORIDAPOWER&LIGHTCOMPANYMay6,1982L-82-186OfficeofNuclearReactorRegulation Attention:

Mr.RobertA.Clark,ChiefOperating ReactorsBranchICF3DivisionofLicensing

/,~U.S.NuclearRegulatory Commission Washington, D.C.20555

DearMr.Clark:

Re:St.LucieUnit1DocketNo.50-335@gPSeismicualificationofAuxiliaodebater('T'lPRef:1)R.A.Clark(NRC)lettertoR.E.UhrL),samesubject,dated4/2/82.2)R.E.Uhrig(FPL)letterL-81-411toD.G.Eisenhut(NRC)dated9/18/81.TheNRChasrequested, byReference (1),clarification o'ftheSt.LucieUnit1AFWsystemboundaryasdiscussed inReference (2).Thisinformation isprovidedbelow.li0"ClarifytheextenttowhichyourAFWSystemboundarycoincides withtheboundarydefinedinGenericLetter81-14,especially parts(a)and(b):(a)"TheAFWsystemboundaryfromsuctiontodischarge (including thewatersourceandheatsink)shallincludethoseportionsofthesystemrequiredtoaccomplish theAFWsystemfunctionandconnected branchpipinguptoandincluding thesecondvalvewhichisnormallyclosedorcapableofautomatic closurewhenthesafetyfunctionisrequired".

RESPONSE

Reference 2addressed theseismicCategoryIAFWsystemfrom~these>smicCategoryI)Condensate StorageTankoptotheterminalconnection oftheAFWsystemtothe(seismicCategoryI)MainFeedwater piping.TheAFWsystemboundaryalsoincludesthe(seismicCategoryI)steamline connection upstreamoftheMSIVswhichfeedthe(seismicCategoryI)steamturbinedrivenAFWpump.Theheatsinksarebyreference, the(seismicCategoryI)steamgenerators and(seismicCategoryI)MainSteampipinguptoandincluding theseismicCategoryIAtmospheric DumpValvesandMainSteamIsolation Valves.ThereisnogPRbranchpipinginthisflowpathwhichisrequiredtobeisolatedforSperformance oftheAFWsystemfunction.

.8205110155 820506'PDR..-ADOCK;0500~;BR5',

r..'P=','".PDR'.PEOPLE...

SERVINGPEOPLE 4,cRi Re:St.LucieUnit1DocketNo.50-335Seismicuglification ofAuxiliarFeedwater Sstem(b)"TheAFWSystemboundaryshallalsoincludeanyportionofbranchpipingthatisstructurally coupledtotheAFWsystemboundarysuchthattheseismicresponseofthebranchpipingtransmits loadstotheAFWsystem.Asaminimum,thisincludesthebranchlines outsidetheAFWsystemboundarytoapointofthreeorthgonal restraints".RESPONSE:

Therearenobranchpipingconnections intheAFWsystem.~0nynormalsmallborevents,drainsandinstrument tapsallwithrootvalves,areprovidedasanintegralpartoftheAFWsystempiping.Thesevents,drainsandtapswereseismically analyzedwiththeAFWsystempipingtomeetseismicCategoryIrequirements.

(c)"Allmechanical andelectrical'quipment, piping(e.g.,instrument air),conduitsandcabletrays,whicharenecessary orcontainitemswhicharenecessary fortheoperation oftheAFWsystem,shallalsobeconsidered."

(d)"Inaddition, thestructures housingthesesystemsandcomponents shallbeincluded".

RESPONSE

itemc)andd)wereaddressed inouroriginalresponse~Reerence2).RobertE.UhrigVicePresident AdvancedSystemsandTechnology REU/PKG/DAV/mbd cc:ter.Jamesp.O'Reilly, RegionIIHaroldF.Reis,Esquire IJ~tVr~II4IIilt1IKSIII,II4IItI