ML18031A226

Advises That SRI Intl Has Begun Work on Planned Safety Relief Valve Bubble Load Test to Be Run in Suppression Pool of Unit 1.Data from Test to Serve as Basis for Reduction of Both Pool Boundary & Submerged Structure Load Specs

ML18031A226
Person / Time
Site:	Susquehanna
Issue date:	08/07/1979
From:	CURTIS N W PENNSYLVANIA POWER & LIGHT CO.
To:	PARR O D Office of Nuclear Reactor Regulation
References
840-2, NUDOCS 7908150655
Download: ML18031A226 (3)

Text

REGULATORY INFORMATION DISTRIBUTION SYSTEM(RIDS)RECIPIENT IDCODE/NAME ADC~gLALulEWHRECIPIENT IDCODE/NAME ACTION'5PMBC/.ulR'BLTTRENLI.TTRENCACCESSION NBR:7908150655 DOCSEDATE:79/08/07NOTARIZED:

NODOCKET¹FACIL;50387Susquehanna SteamElectricStationgUnitigPennsylva 0500038750-388Susquehanna

'SteamElectricStationiUnit2iPennsylva 38AUTH,NAMEAUTHORAFFILIATIONCURTIS'~<~Pennsylvania Po~er8IightCo~RECIP,NAMERECIPIENT AFFILIATION PARRgO~DELight(<aterReactorsBranch3

SUBJECT:

AdvisesthatSRIIntlhasbegunworkonplannedsafety/reliefvalvebuobleloadtesttoberuninsuppression poolofUnit1.Datafromtesttoserveasbasisforreduction ofbothpoolboundary8submerged structure loadspecs,DISTRIBUTION CODE:B001BCOPIESRECEIVED!LTR gENCLgSIZE:TITI.E:PSAR/FSAR AMDTSANDRELATEDCORRESPONDENCE'e

~SElllb2v.63cvsFSIA'.8cL8/11574.6~8~I&E<EBcl++I+4 (dRAIL)0TES~tyg~~~~~~~~~~yy~~~~~

~g~w~y~~~+~~~~~~~~~~~~M&ww~&~MMQlww~

w&&ww&wpl&lw&'wwww'&we%

COPIESCOPIESINTERNAL:

006I8E09GEOSCIENBR11MECHENGBR13MATLENGBR16ANALYSISBR18AUXSYSBR20I8CSYSBR22ADSITETECH27EFFLTRTSYS29KIRK'WOOD ADPLANTSYSADSITEANLYSISHYDROMETEORBROELD02NRCPDR08OPERALICBR100IAB12STRUCENGBR15REACSYSBR17COREPERFBR19CONTAINSYS21PONERSYS,BR26ACCDNTANI.YS28RAOASMTBRADFORENGADREACSAFETYDIRECTORNRRMPA11111111111001010EXTERNAL:

03I.PDR30ACRS110100NSIC14'6'g~La-dd%~~z/a/.<E~~8EPB~~<<TOTALiV~'MBER OFCOPIESREQUIRED:

LTTR~ENCL

TWONORTHNINTHSTREET,ALLENTOWN, PA.18lolPHONEMEt2IS)821-SIS'I August7,1979KM5tKNMNHO'iLt3PEDirectorofNuclearReactorRegulation U.S.NuclearRegulatory Cormission Washington, DC20555DOCKETNOS.50-38750-388ATTN:Mr.OlanD.Parr,ChiefLightWaterReactorsBranchNo.3SUSQUEHANNA STEAMELECTRICSTATIONSRVBUBBLELOADTESTSER100450PILE172,840-2PLA-388

DearMr.Parr:

SRIInternational hasrecentlybegunwork.onaplannedsafety/relief valve(SRV)bubbleloadtesttoberunintheUnitIlsuppression poolattheSusquehanna SES.Thescopeofthetestswillbeto,investigate theactualpoolloadingsassociated withSRVdischarge usingasimulated bubblesource.Datafromthesetestswouldserveasabasisforareduction ofboththepoolboundaryandsub-mergedstructures loadspecification duetoSRVdischarge, shouldsuchfurtherloadreduction berequired.

Finalverification thatthesimulated bubblesourcewillgiveadequateduplication ofaSRVdischarge pressure-time historyisyettobecompleted.

Shouldthissourcenotbeabletosimulatesuchapressure-time history,plansforthistestwillhavetobemodifiedorpossiblycancelled.

Shouldfinalverification becompleted asplanned,testingattheSusquehanna sitewouldtakeplaceduringthefourthquarterofthisyear.Atthepresenttimeinstrumentation installation isproceeding.

Shouldyouorthestaffrequireanyfurtherinformation, wewillbegladtomeetwithyoutodiscussinmoredetailthetestplans.Verytrulyyours,N.W.CurtisVicePresident

-Engineering aConstruction DFR:dahcc-R.M.Gallo-NRC(sjt:e)PENNsYLYANIA PowER8LIGHTcoMPAPY82.5045<