ML17219A347

Forwards Addl Info for 860702 Application for Amend to License NPF-16 Re Spent Fuel Storage,Per 861210 Request. Shipping Cask Models NAC-1 & NLI-1/2 Only Casks That Meet 25 Ton Tech Spec Limit for Unit 1 Cask Crane

ML17219A347
Person / Time
Site:	Saint Lucie
Issue date:	02/09/1987
From:	WOODY C O FLORIDA POWER & LIGHT CO.
To:	NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
References
L-87-48, NUDOCS 8702180096
Download: ML17219A347 (22)

Text

ACCESSIONNBR:FACIL:50-33550-389AUTH.NAI'IEWOODY~C.O.RECIP.NAI'IEREGULATORY'ORI"IATIONDISTRIBUTIONBYR~EI'I(RIDS)8702180096DQC..DATE.'7/02/09NOT*RID:NOSt.LuciePlantiUnitiiFloridaPowerCcLightCo.St.LuciePlantiUnit2>FloridaPower5LightCo.AUTHORAFFILIATIONFloridaPowerSrLightCo.RECIPIENTAFFILIATIONDocumentControlBranch(Document-'ontrolDesk)DOCKET0500033505000389

SUBJECT:

Forwardsaddiinfofor860702applicationforamendtoLicenseNPF-16respentfuelstorage>per861210request.ShippingcaskI'IodelsNAC-15NLI-1/2onlycasksthatmeet25tonTechSpeclimitforUnit1caskcrane.DISTRIBUTIONCODE:A001DCOPIEBRECEIVED:LTRiENCLIBIZE:TITLE:QRSubmittal:GeneralDistributionNOTES:RECIPIENTIDCODE/NAI'IEPWR-BEBPWR-BFOBPWR-BPD8PD04PIJR-BPEICSBINTERNAL:ADI'I/LFI'IBNHFT/TSCBREQFI01COPIESLTTRENCL115510111RECIPIENTIDCODE/NANEPWR-BPElCSBPWR-BPD8LATOURIGNY>EPWR-BRSBELD/HDS2NRR/ORASCOPIESLTTRENCL2201111010EXTERNAL:EGMBRUSKEiSNRCPDR02111LPDRNSIC0305,1111TOTALNUj'IBEROFCOPIESREQUIRED:LTTR22ENCL18 lit1vls8hliriP'llt1,,1'tt~t)rtt*~~ttjgitttgtft'tettltt".3f'".":)9$g4l~tttttttt"IttiII*l?it~t P.o.B000,JUNOBEACH,FL33408.0420~ygllhy~FEBRUARY91987L-87-48U.S.NuclearRegulatoryCommissionAttn:DocumentControlDeskWashington,D.C.20555Gentlemen:Re:St.LucieUnitsIand2DocketNos.50-335and50-389SentFuelTransferByletterL-86-250,datedJuly2,l986,FloridaPower&LightCompany(FPL)proposedtoamendtheSt.LucieUnit2operatinglicenseNPF-l6toestablishtheoptionofstoringspentfuelfromSt.LucieUnitIintheSt.LucieUnit2spentfuelpool.TheUnitIspentfuelpoolwilllosefullcorereservecapacityasaresultofthel987refuelingoutage,andtheplannedUnitIspentfuelpoolrerackcannotbeaccomplishedpriortol988.If,intheinterim,fullcoreoff-loadofUnitIshouldbenecessary,UnitIspentfuelcouldbestoredintheUnit2spentfuelpool.ByletterdatedDecemberIO,I986(E.G.TourignytoC.O.Woody)theNRCStaffrequestedadditionalinformationrequiredtocontinuetheirreviewofthisproposedlicenseamendment.AttachedisFPL'sresponsetothisrequest.lfadditionalinformationisrequiredonthistopic,pleasecontactus.Very,trulyyours,C.O.WGroup'PresidentNuclearEnergyCOW/EJW/gpAttachmentcc:Dr.J.NelsonGrace,RegionII,USNRCUSNRCResidentInspector,St.LuciePlant8702i80096870209PDRADOCK05000335pPDR.UMoolEJW4/00I/IanFPLGroupcompany I~Mh&rrr~".~Ill',~~Ii>>i.;,~~MI'--hII4-~0<<dil<<44-'IcIriII',<<~4->>rf>>II'Ii'>>m4'Iill,,4J>>r~~",<<I~rII>><<>><<'<<~llmk.~<<.I<<4~>>i>>44'-'I"~4li.-'>>~4->>'4l~44~M=I'4*)(42~.-y<<I~I~I"'Ir~<<h'Irrr4>>,ff<<,I,<<4h>>,4hr<<II4'.MI>>IIhl4-ii.444~",I,M,'..4ilt~>>>>'rit.i-filiIitfi4,~~'IPI.<<4<44.'Mg"II'Mr444IU4fii>>,',F44~I.*<<f(IifI>><<lt4'ilI>>=4.>>Ii'I~I"IIIf1iik<<.IM4\"'hii~',IIll>><<III.lhI'1"'I".i,4<<,',,"<<ilkii'~'.4l",frl>>r,hl>>ri<<h<<<<.~ll4I'Ill4~$<<hri,i44>>+w>>4<<IM)QV4~Mh<<r'4~IM-~ll<<r3IPrh'Ofi4I>>'l4I.>>rlll~r~i'IrI',IrI~<<v<<rIl ATTACHMENTREQUESTFORADDITIONALINFORMATIONFLORIDAPOWER8LIGHTCOMPANYST.LUCIEUNITSIAND2SPENTFUELTRANSFERBETWEENUNITSPLANT,ELECTRICAL,INSTRUMENTATIONANDCONTROLSYSTEMSBRANCHInyoursubmittaldatedJuly2,l986,youproposedalicensingamendmenttoestablishtheoptionoftransferringandstoringspentfuelassemblies(SFAs)fromtheSt.LucieUnitIspentfuelpool(SFP)totheSt.LucieUnit2SFPinordertopermitfullcoreoff-loadcapabilityatUnitI,shoulditberequired,duetolossofUnitIfullcorereservestoragecapacityfollowingthel987refuelingoutage.Providethefollowingadditionalinformationwithrespecttothisproposal:I.ProvidefurtherdetailsregardingtheUnitISFAstobestoredintheUnit2SFP.Thedetailsshouldincludenumber,typeandageofexistingSFAstobetransferredtoUnit2andtheSFAlocationsintheUnit2storagerackstobeutilized.Alsoprovideanynecessarydrawingstoclarifyyourresponse.~ResonseTheSt.LucieUnitIspentfuelassemblieswhichwouldbeconsideredinitiallyforstorageintheSt.LucieUnit2spentfuelpoolwouldbethosethathavehadthelongestdecaytimeintheUnitIspentfuelpool,i.e.BatchA,CombustionEngineeringassemblieswhichwereoffloadedfromtheUnitIcoreduringUnitIsfirstrefuelingoutageinApril-Mayl978,andhaveremainedinthespentfuelpoolsincethatoffload.RefertoSt.LucieUnitIUpdatedFinalSafetyAnalysisReport(FSAR)Table4.2-landFigure4.2-3.AlthoughtheproposedamendmentwouldnotlimitthenumberofSFAsthatcouldbetransferredtotheUnit2SFP,itisexpectedthatonlyl5to25SFAswouldbesubjecttotransfer,shouldthisoptionbecomenescessary.FigureI-IshowstheUnitIspentfuelpoolwiththeBatchAassembliesindicated.FigureI-2showstheUnit2spentfuelpool.TheUnitIassemblieswouldbeputintotheindicatedrackpositionsclosesttothecasklaydownarea,shouldthetransferbenecessary.ThiswouldbeconsistentwiththerequirementsofSt.LucieUnit2TechnicalSpecification5.6.l.2.ConfirmthatyouwillhandlenomorethanoneSFAatagiventimeinashippingcask,andthatonlyonetypeofshippingcaskwillbeused.~ResonseAtthistime,shippingcaskModelNos.NAC-IandNLI-I/2aretheonlycasksthatmeetthe25tonTechnicalSpecification3.9.I3limitfor.theUnitIcaskcrane.BoththeNAC-IandNLI-I/2casksarecapableofholdingonlyonePWRfuelassembly.Therefore,handlingmorethanoneSFAinacaskispreventedbythedesignofthesecasks.EJW4/00I/2 fiI~lvtvfit-v'00k40rtl(kl~0'4"II*v&vII-ltVI.Il,.vvltiv"l44040itf,ll4'vI,I,4I0'Ifl4',f,0I,00~400'ttthfl0'I00~..40ii4*4~',vl,I4~44Iv-"44'Itf4~~ill"I0viVvtII~~~4I0'0llllflWV,r"S-'4~v00ft004flIIr4.~4If00ItIVV'l000~I~4104040f44000IIlOI4It(tIIIfvI00tlI'III~Iv04fv..l44IV~j'll~gfttt4slI 3eProvideasummaryoftheevaluationperformedconcerningtheshippingcaskloadpathbetweentheunits.Thissummaryshouldincludeadiscussionofthemeansutilizedtoconfirmthatsafetyrelatedequipmentincludingpiping,components,andelectricconduitsthatarelocatedneartheloadpathandthosethatareburiedundertheloadpathwillnotbeadverselyaffectedwithregardtotheircapabilitytoperformtheirintendedsafetyfunctionsduringnormalspentfueltransferfromUnitItoUnit2andintheeventofanaccidentsuchascaskdrop.Also,provideanynecessarydrawingstoclarifyyourresponse.~ResenseTheevaluationconsideredaspentfueltrans-shipmentpathstartingattheUnitIcaskloadingareaandtravelingtotheUnit2caskloadingareaasindicatedinFigure3-l.Thispath,initsentirety,coincideswithaportionoftheintermodalcasktransporterpathpreviouslyevaluatedforeffectsuponundergroundstructuresandutilities.Thespentfueltrans-shipmentpathroadsurfaceispavedwithPortlandcementconcreteorasphalticconcrete.Thefuelelementstobetransportedwillutilizeaoneelementshippingcaskhavingamaximumweightof25tonswhenloadedwiththespentfuelassembly.Twotransportvehicleswereconsideredintheevaluation.WheelloadsforthetwovehiclesareshowninFigures3-Iand3-2.Thereactionsofthetwotransportvehicleswerecomparedtothemaximumreactionsoftheintermodalcasktransporterthatwaspreviouslyevaluated.Sincethereactionsoftheintermodalcasktransporteraregreaterthanthereactionforeitherofthetwotransportvehicles,theintermodalcasktransporterevaluationisconsideredtobeanenvelopingevaluation.Theeffectoftheintermodalcasktransporterwheelloads(andthusthespentfueltransporterwheelloads)ontheroadway,missileprotectionslabsandundergroundfacilities(i.e.,pipes,electricalconduit,manholesandcatchbasins)hasbeenanalyzed.Thepunchingshearoftheconcreteroadwayisacceptableforsurfaceareasofbothsingleanddualtirewheels.Eachsurfaceareawasalsoevaluatedformaximumsoilbearingcapacityandfoundtobeacceptable.Themaximumstressesanddeflectionsofthemissileprotectionslabs,undergroundpipesandconduitarewithintheallowablerange.Theultimatestrengthdesignofthemanholesandcatchbasinsusingtheappropriateloadcriteriawasreviewedandfoundtobeacceptable.Theroadwaywillbeinspectedforgeneraldeteriorationsothatitcanberepaired,ifnecessary,priortothetransportofspentfuel.Theshippingcaskwillbeadequatelysecuredtothetransportvehicle.Thepossibilityofacaskdrophasbeengreatlyminimizedbythefollowing:a.conservativedesignmarginsintheliftingcomponentsb.redundantbrakingsystemsforhoistsystemsc.periodictestsandinspectionsofthecranesEJW4/001/3 4h,t4I4If4Ut4~~III~4I'Ut444IUII4IhI~~I,"4II,4llN~N~*ttt4III~4IUll,f,tII4I4I4III444II4, d.useofqualifiedcraneoperatorsandriggerse.theuseofapprovedoperatingandadministrativeproceduresRefertoFPLresponsetoQuestionNo.8foradiscussionofacaskdropaccidentinthecasklaydownareaofeitherunit.4.Providethedetailsofthespentfuelshippingcaskandverifythatitmeetstherequirementsof10CFRPart71.~ResonseForanytransferoffuelbetweenSt.LucieUnitsIand2priortocompletionofthererackoftheUnitIfuelstoragepool,thespecificcasktypewillbeeithertheModelNo.NAC-IortheModelNLI-I/2series.Pursuantto10CFR71.12,FPLwillregistertheNAC-IcaskwiththeNRCpriortoitsuse.TheNRChasissuedCertificateofComplianceNo.9183,RevisionNo.3datedNovember14,1984forthiscaskwhichstatesthattheNAC-Iisapprovedforuseunderthegenerallicenseprovisionsof10CFRPart71.12.TheNLI-I/2caskiscurrentlyregisteredforusebyFPL.TheNRChasissuedCertificateofComplianceNo.9010,RevisionNo.16,datedJanuary16,1986forthiscaskwhichstatesthattheNLI-I/2isapprovedforuseunderthegenerallicenseprovisionsof10CFRPart71.12.5.AccordingtothetechnicalspecificationforSt.LucieUnitI,thespentfuelstoragecaskcanbemovedintothespentfuelstoragepoolareawhenthespentfuelinthepoolhasagedmorethan1190or1490hours,dependingontheamountofspentfuelinthepool.Thetechnicalspecificationsalsoallownewspentfueltobemovedintothespentfuelstorageareaafterthereactorhasbeenshutdownfor72hours.However,thereisnobasisprovidedfortheminimumshutdowntimethatwouldberequiredifnewspentfuelweretransferredbyashippingcasktotheSt.LucieUnit2SFP.Therefore,provideananalysisfortheminimumshutdowntimethatwouldberequiredforapostulateddesignbasiscaskdropaccidentoccurringoutdoorsbetweenUnitsIand2andconfirmthattheresultingoff-sitedosesarelessthan10%ofthe10CFRPart100guidelinedosevalues.~ResonseSection9.1.4.3.eoftheUnitIFSARprovidesananalysisofthepotentialoffsitedoseresultingfromthedroppingofacaskcontainingtenspentfuelassembliesoutsidethefuelhandlingbuildingunderadversemeteorologicaldilutionconditions.Thisanalysisassumesnotonlytenassemblies,butalsoaminimumdecayof90days.BecausetheBatchAassemblieshavedecayedinexcessofeightyearsandonlyoneSFAwillbetransferredatatimeasdiscussedintheresponsetoQuestion2,theabovereferencedanalysisisbounding.Therefore,noadditionalanalysisisnecessary.EJW4/001/4

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6.ProvideadescriptionofthedoserateatthesurfaceofthepoolwaterforbothUnitsIand2fromthefuelassemblies,controlrods,burnablepoisonrodsoranymiscellaneousmaterialsstoredinthepool.Also,providethedoseratefromindividualfuelassembliesastheyarebeingtransferredtothecask,andspecifythedepthofwatershieldingthefuelassembliesastheyarebeingtransferred.IfthedepthofwatershieldingoverafuelassemblyduringtransferislessthanIOfeet,orthedoserate3feetabovetheSFPwaterisgreaterthan5mR/hraboveambientradiationlevels,thenproposeatechnicalspecificationspecifyingtheminimumdepthofwatershieldingtobemaintainedoverthefuelassemblyasitisbeingtransferredinorder'tomaintainALARAlimits,andidentifythemeasurestakentoassurethatthisminimumdepthwillbemaintained.~ResonseTravelstopsinthefuelhandlingequipmentforbothunitslimitthetraveltorestrictwithdrawalofthespentfuelassemblies.Thislimitation,togetherwithwaterlevelcontrol,resultsinthemaintenanceofaminimumwatercoverof9ft.overtheactiveportionofthefuelassembly,resultinginaradiationlevelof2.5mR/hrorlessatthesurfaceofthewater(seeSt.LucieUnitIFSARSection9.I.4.3andSt.LucieUnit2FSARSection9.I.4.3.3).Notethatifthetravelstopsshouldfailandtherewerenooperatoraction,thefuelhandlingmachinecannotraisetheassemblyabovea9ft.water-to-active-fuel-lengthheightbecauseofthespentfuelmachinedesigngeometry.RefertoFPLresponsetoQuestion7foradiscussiononmaintainingALARAlimitsduringfuelassemblytransfer.FPL'sALARAprogram,coupledwithdesigngeometry,interlocksandlimitswitchesobviatetheneedforadditionalfueltransferTechnicalSpecifications.7.a.DescribethemannerinwhichoccupationalexposurewillbekeptALARAduringthetransfer,includingtheneedforandthemannerinwhichcleaningofthecrudonSFPwallswillbeperformedtoreduceexposuresratesintheSFParea.Also,describethemeanstobeutilizedtoensurethatdosestodiversaremaintainedALARA.b.DescribethemannerinwhichoccupationalexposurewillbekeptALARAduringcleanupoperationsaftercompletionofthespentfueltransfer.~Resonsea.Duringthepostulatedfueltransfer,occupationalexposureswillbelimitedbyALARAproceduresandguidelineswhichcurrentlyexistatSt.Lucie.Additionally,experiencegainedfrompreviousfuelmovementoperationsandthethermalshieldremovalfromUnitIwillbeusedinkeepingexposuresALARA.FPLletterL-86-458,datedNovemberl4,I986describesFPL'sALARAprogramandpersonnelexposureexperiences.CrudontheSFPwallsforeitherunitpresentsaninsignificantcontributiontoexposureatSt.Lucie.Diverswouldnotbeusedintransferringspentfuelbetweentheunits.EJW4/00I/5 U14II,tt~ItIll~1wdttNI'lI~14F~IIIIItf4I4it"4Ill4I4ItttAif4i'dtttt~t'N,<<Utfd14Ud1It4I4~I;144ll4*~~44'1It,>.I,II,NII):filIlIUI4"'1~I'W)I~IUdIIII,/UtII/I441'I~IOUI4tlt~IiitiAldkII44IllitlmttI4Uk.If~t,~ItAIlkttOIIAI~Utkid,I44IUt,.1,tfIO4ttILW,AIW-U4ltItI'.'i'INt14ttt,ItWttUlttt4It'4UIt>>tttI4ttltII4IUO44AI4I1<<IIItUUIt~II.OftUU\1 b.Asdiscussedinitema.,above,occupationalexposurefromcleanupoperationswhichwouldresultfromthepostulatedfueltransferwillbelimitedtoALARAbyproceduresandguidelineswhichcurrentlyexistatSt.Lucie.8.DiscusstheextentofdamagethattheSFPmayincurfromadroppedspentfuelshippingcask,andconfirmthatsufficientboratedmake-upwaterisavailable'omaintaintheminimumSFPwaterlevelforanyresultingleakage.~ResonseSection9.I.4.3oftheUnitIFSARpostulatestwocaskdropaccidentsfortheUnitISFP,averticalandatippedcaskdrop.Theverticalcaskdropintothecaskstorageareahasbeenanalyzedtodetermineiftheleaktightbarrierofthepoolcanbebreached.Theresultsoftheanalysisindicatethattheleaktightintegrityismaintainedfora25toncaskdrop.TechnicalSpecification3/4.9.I3,"SpentFuelCaskCrane,"providesassurancethattheUnitIfuelcaskcranedoesnothandleloadsinexcessof25tons.Atippedcaskdrophasalsobeenconsideredandtheanalysisresultsfoundtobeacceptable.IntheUnit2spentfuelpoolaconcretewalltothetopoftheSFPseparatesthecaskstorageareafromthespentfuelstoragearea.Thewallpreventsawaterlevelreductionoverthespentfuelassembliesevenifadroppedfuelcaskcausesdamagetothepoolorpoollinerinthecaskstoragearea.Forbothunits,thecaskisphysicallypreventedandadministrativelyprohibitedfromtravelingovertheSFPoutsidethecaskstoragearea.9.Provideanevaluationofthetotaldosetomembersofthepublicresultingfromtheproposedtransferconsideringthefollowing:a.timerequiredtomoveeachfuelassemblyfromtheUnitISFPtotheUnit2SFP;b.releasesofradioiodinesandotherradionuclidesduringthistime;c.directradiation;d.transferandcleanupoperations;ande.othersourcesofexposureatthesite.~ResonseTheonlydosetomembersofthepublicthatcouldpotentiallyoccurwouldbeasaresultofafuelhandlingorcaskdropaccident.TheseaccidentshavebeenanalyzedintheUnitIFSARSections9.I.4.3andl5.4.3.2andintheUnit2FSARSectionsl5.7.4.I.2andI5.7.4.I.3.EJW4/00I/6 4III'..4.414hICIt>>II:IP>>.:"4,4)IIlli>>4Ih"Ill4IL4/44l!r4rttt444-1t~,I>>r4>>4~84"I'l~C[tlI~IIhr~~~14f4ItI2~~4IIIItI'>>'->>4~14,4JlhrlPttI~ttrit~r4gltrt1444I441lt4I'I444>>4'I~ll44444~I4;,tr>>~ffII'.P4'irI'(1l,".l4>>44.I.tt',I444it144I~>>>>p>>4~~4",rI4'II1,I'-II41~t>>tt'.I>>4iKIf'4>>~I1llIDhti4~~ll4lt,4~IfoII't14>>t411~I~lr44"','lII14(llIII4~.~IIrI'.lhrrh',llrI>>lit,4lt4thl,t4>>rt~~4,Il4Il,I'ith>>-'4~~tlhrt4'9ttI44'4A~I4I~II4>>L4I4'.<'>>I~ill>>I*hit444444M44'll'l41>>-44)l4~4l'.4>>P>>4tlI444lt4>>~44*tllt4ilII>>II,4IIltt*tII.h-13'=4'tt>>44'4~~~~rt-444tl,lI~44"-~1~4>>~I~lt~-I>>~ltlt~~I~'~11tt4444'l4I4~4lt~1>>,r~lt4~tt14)Ittllil-ilhit IO.Describetheprovisionsformonitoringreleasesofradioactivematerials,environmentalradiologicalmonitoring,andcalculatingandreportingeffluentsandoffsitedosesfromtheproposedtransferoperationsandsubsequentclean-upoperations,orjustifynotprovidingsuchmonitoring,calculating,andreporting.~ResonseSt.LucieUnitIandUnit2TechnicalSpecificationsSection3/4.II,"RadioactiveEffluents,"and3/4.I2,"RadiologicalEnvironmentalMonitoring",providerequirementsonthemonitoringofradioactivereleases,environmentalmonitoringandsubsequentreportingrequirements.Anypotentialfueltransferwouldbesubjecttotheserequirements.II.YourrequestindicatesthatspentfuelwillbetransferredonlyfromUnitItoUnit2.Confirmthatthisisthecase.IfyourrequestalsoinvolvesthecapabilitytotransferspentfuelfromUnit2toUnitI,provideinformationcomparabletothatindicatedpreviouslyforthiscase,orconfirmthattheconditionsofthetransferwillbeidenticaltothatforUnitItoUnit2.~Resonselfafullcoreoff-loadisrequiredpriortorerackingtheUnitISFP,onlyfueldischargedfromUnitIwillbetransferredtoUnit2.NofueldischargedfromUnit2willbetransferredtoUnitI.However,afterrerackingtheUnitISFP,anyspentfuelfromUnitIwhichmayhavebeentransferredtotheUnit2SFPcouldbereturnedtotheUnitISFPundertheconditionsdescribedabove.EJW4/00I/7 flI4'1tIIIIbHIIIvIIIIII>>4'5 ggjttXIXOP7lfI1N8BatchAFuelAssembliesWithLongestContinuousDecayTimeKio1C1iS5JpAAAh88CCbbEEFFGGHHC,CLL2827262524232221201918171615141312II1098765432IlLFigure1-1SpentFuelStorageSt.LucieUnit1 4ltly't ST.LUCIEUNIT2OPERATLGPR'OCEDURENO>>2-1600022,REVI~ON2UNITNO.2REPUELTNGOPERATIONFIGURE6SPENTPUELSTORAGEFOLL(MINGREFUELINGORERATION1))Illan1III~'0I>>II+~p~4r~~57V~d~kuwX~SECTIONBSECTIONAIVIIVIIrIIrIIIIIIYlIIYlIIrlIIYIVYlIIIYlIIIIIkiIIrIlIIVIIIIIIIIIIIVlIIYlIIVYIIYIIIYlIIVIIIIIIIIVVIIVIIIIirIIIrIlIvIIIriIVVIIYVIYlIIIIIIIPIIi'PiIt'lIIVVlIIIIVlIYIVIVIIIIIIVIIIVIIIIIVIIIrtrIIIPIIIllIIIVIIiFigure1-2 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