ML17216A625

Proposed Tech Specs,Incorporating Revised Pressure/Temp Limits & Results of Low Temp Overpressure Protection Analysis

ML17216A625
Person / Time
Site:	Saint Lucie
Issue date:	07/15/1986
From:	FLORIDA POWER & LIGHT CO.
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ML17216A624	List: ML17216A623 ML17216A625
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NUDOCS 8607220407
Download: ML17216A625 (37)

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ATTACHMENT 3St.LucieUnit2P/TLimitsandLTOPAnalysisProosedTech'nical Secification ChanesoReviseSpecification 3.4.9.IoReplaceFigure3.4-2through3.4-4withnewFigures3.4-2through3.4-I5oReviseSpecification 4.4.9.l.2oReviseSpecification 3.4.9.3oAddTable3.4-3oRevisetheBasesforSpecification 3/4.4.98b07220407 8b07158PDRADOCK0500038'9 p'DRQMAS3/026/7 F~e~~e8'IVeelIe>>

REACTORCOOLANTSYSTEM3/4.4.9PRESSURE/TEMPERATURE LIMITSREACTORCOOLANTSYSTEMLIMITINGCONDITION FOROPERATION 3.4.9.1TheReactorCoolantSysm(exceptthepressurizer

)temperature andpressureshallbelimitedinadancewithFiguresduringheatup,cooldown, criticality, andinservice leakandhydrostatic testing,~k.

a0b.C.Amimumheupof10inanyhourperodwithRcold1teeraturlessthanF.Aaximumhetupof30Finany-hourpriodwiRCScoldegtempaturegrterthan2'Fbutssthan18F.maximumhtupofFinan1-hourpiodwithCScoldlegterneraturegrtertha1184Fbulesstha3704F.maximumheatuof100Fiany1-urperiowithRCSoldlegmperaturgrearthan370F.Aaximumcoodownof04Finan1-hourpriodwitRCScoldegmperature esstha754F.Aaximumcldownof04Fina1-houreriodwitRCScollegtempaturegrterthan54Fbutssthan864F.Aximumcoldownof04Fina1-houreriodwitRCScollegtemplatureeatertha864Fbulesstha974F.Aaximumcooldowof100'nanyhourper'withRcoldletemperategreatthan9F.Amximumtperatureangeofessthanrequal104Finny1-ourperdduringnserviceydrostati andleatestingerationsovetheeatupancooldownimitcurs.APPLICABILITY:

Atalltimes.ACTION:Withanyoftheabovelimitsexceeded, restorethetemperatureand/orpressuretowithinthelimitwi'thin30minutes;performanengineering evaluation todetermine theeffectsoftheout-of-limit condition onthestructural integrity oftheReactorCoolantSystem;determine thattheReactorCoolantSystemremainsacceptable forcontinued operations orbeinatleastHOTSTANDBYwithinthenext6hoursandreducetheRCSTandpressuretolessavgthan200Fand500psia,respectively, withinthefollowing 30hours.SURVEILLANCE REUIREMENTS I4.4.9.1.1TheReactorCoolantSystemtemperature andpressureshallbedetermined tobewithinthelimitsatleastonceper30minutesduringsystemheatup,cooldown, andinservice leakandhydrostatic testingoperations.

ST.LUCIE-UNIT23/44-29

~-.INSERVICE/HYDRO TEST..COOLDOWN~":~'EATUP~::

g2000g1500NIg1000Az5~~--'OWESTSERVICETEMP,:~172'F~~~5-)r::::.-:;.::

':..:~::::.'.'ORE CRITICAL:

'INIMUM

.BOLTUP:.'-."TEMP.62'F-'.:MIN.TEMP.:~:-..BOLTUP::CORE.CRITICAL~~~~541PSIA'52100SEETECH,SPEC.3.4.$-1FORHEATUPANDCOORATELIMITATIONS TRCS-INDICATED RCSTEMP,'FFIGURE3.4-2REACTORCOOLANTSYSTEMPRESSURETEMPERATURE LIMITATIONS 0TO2YEARSOFOPERATION ST;LUCIE-UNIT2"3/44-31

'INSERVICE/HYDRO TEST'=.:-:."l~~~W~-2500CILNCC8ICJDR2000::LOWEST:-'iSERVICETEMP1720FI1500IIRECRITICAL:

'OOLDOWNPf:'SEEH.SPEC.3,4.9-1FORHTUPANDCOOLDOLIMITATIONS

~~Ii~'I'-"".::j::.>::.:

.-.-'MINTEMP'OLTUP:CORE.CRITICAL..

-82100200TRCS~INDICATED RCSTEMP,'FFIGURE3.44REACTORCOOLANTSYSTEMPRESSURETEMPERATURE LIMITATIONS 2TO10YEARSOFOPERATION ST.LUCIE-UNIT23/44-32 y1'"'NSERVICE/HYDRO TE..COOLDOWNi:"

HEATUP'...

~~'CORECRITICAL.i:OaWN9aW5CLR516001000...-..LOWEST""'::.::SERVICE.TEMP"'172'FIIII'.:~:~~HEATUP.:..'.~iOOLDOWNCSEEH.SPEC.3.4.81'.FORHTUPANDCOOLDOLIMITATIONS

.MIN.TEMP.BOLTUP'.::::'ORECRITICA062100200300400TRCS~INDICATED RCSTEMP,'FFIGURE3.44REACTORCOOLANTSYSTEMPRESSURETEMPERATURE LIMITATIONS 10TO40YEARSOFOPERATION ST.LUCIE-UNET23/44-33 ST.LUCIE-2P/TLIMITS,5EFPYHEATUPANDCORECRITICAL2600~4~I~I60F/HR~~~~~~2000COe1600NI1000ICJQR500~~~~.LOWESTSERVICETEMP168oFF/HR636PSIA'CORECRITICALNAf<Nu/fIQLLOuOASM H0mSHU,4F/HRTemperature Uelt,4F00MIN.BOLTUPTEMP.M50100<3C7i3C7TCINDICATED REACTORCOOLANTTEMPERATURE nJ~F~Zg-3ST.LUCIE-2P/TLIMITS,SEFPYCOOLDOWNANDINSERVICE TEST2500~~~'-"-INSERVICETEST20001600Na1000Qa5ERMAL-ISOTH:LOWESTSERVICETEMP.168F680PSIA100F/HR8cISOTHERMAL='030SI1$lM<<OCaf-112112-illi12$NAXlfHLIM LLOtdALEC5RATggm,F/HRTemperature Umit,F30F/HR10000MIN.BOLTUPTEMP.TCINDICATED REACTORCOOLANTTEMPERATURE<

F ST.LUCIE-2P/7LIMITS,10EFPYHEATUPANDCORECRITICAL.

~~t504F/HR'tt~'~~I~t~~"'""i'~~i~t'I,*~~.~~~~~~~q~lOWESTSERVICETEMP.1684FII~~~~s'...".CORECR ITICAF/HRNAWlmuNAL.Lo+ASLE IIU,RAT~>HU,F/HRTemperature List,~F40SI100~3C7i3C7IMIN.BOlTUPTEMP.Q~1QO2QO30Q400TCINDICATED REACTORCOOLANTTEMPERATURE'F 0~-P

<VST.LUCIE-2P/TLIMITS,10EFPYCOOLDOWNANDINSERVICE TESTI--""INSERVICE TEST~~~~~~~~~2000160010004Q-ISOTHERMALOWESTSERVICETEMP.168F~~~L~~F/HR5ISOTHAlhQtRATESCD,4F/HRTeaperature UmIt,4F00660PSIASPF/HR65MINBOLTUPTEMP.2030$07$1N~~c1M1Q-130130-11C~1%TCINDICATED REACTORCOOLANTTEMPERATURE, F

Table1ST.LUCIE-2-LTOPSYSTEMCHARACTERISTICS, 5EFPYReliefValveAlinmentTemeratures(F)SOTSReliefVaLu,esHU'DPORV','HUCD<102<161102-295161-286MaximumAllowable HeatuandCooldownRatesHU,F/HRTemperature Llmi,FCD,F/HRTemperature Limit,F0050100<367>36720305075100<8686-112112"128>128LTOPSstemGeneralReuirements

[MaximumILTOPTemperatures:

ForHeatup:ForCoo!down:

MaximumSecondary-to-Primary Temperature Differential forRCPStart:MaximumCalibration IntervalforPressurizer PressureTransmitters:

MaximumNumberofRCPsAllowedtoOperatebelow2004F:HPSIandChargingPump-Combinations AllowedtobeAlignedtotheRCS:'AtT<200oFcAt2000F<T<295FC-.AtT->295oFc2954F286OFq0oF18monthsTwo2ChargingPumpsl1HPSIC3ChargingPumps2HPSI63ChargingPumps Table2ST;LUCIE-2LTOPSYSTEMCHARACTERISTICS, 10EFPYReliefValveAllnmentTemeratures(F)SOSReliefValvesHUCDHUPORVCD<156<179156"313179"304MaximumAllowable HeatuandCooldownRatesHU,F/HRTemperature Limit,FCD,F/HRTemperature Iimit,F4050100<367<<36?20305075100<104104"130130-146>146LTOPSstemCeneralReuirements

[MaximumJLTOPTemperatures:

ForHeatup:ForCooldown:

MaximumSecondary-to-Primary Temperature Differential forRCPStart:MaximumCalibration IntervalforPressurizer PressureTransmitters:

MaximumNumberofRCPsAllowedtoOperatebelow200oF:HPSIandChargingPumpCombinations AllowedtobeAlignedtotheRCS:AtT<200~FAt200F<T<313Fc-AtT>313~Fc313oF304OF40oF18monthsTwo2ChargingPumps1HPSI63ChargingPumps2HPSI63ChargingPumps

Table3ST.LUCIE-2LTOPSYSTEMCHARACTERISTICS, 15EFPYSQCSReliefVaLvesHUCD<165~<190165-324190-315ReliefValveAlinmentTemeratures(oF)PORV'-HUCDMaximumAllowable HeatuandCooldownRatesHU;FIHRTemperature, Limit,oFCD,FIHRTemperature Limit,F4050100<8989-367>36720305075100<115115-141141-157~157LTOPSstemGeneralReuirements

[Maximum]

LTOPTemperatures:

ForHeatup:ForCooldown:

MaximumSecondary-to-Primary Temperature Differential forRCPStart:MaximumCalibration IntervalforPressurizer PressureTransmitters:

MaximumNumberofRCPsAllowedtoOperatebelow200F:HPSIandChargingPumpCombinations AllowedtobeAlignedtotheRCS:AtT<200oFAt200oF<T<324oFC-AtT>324oFC324oF315oF40oF18monthsTwo,2ChargingPumps1HPSI83ChargingPumps2HPSIC3ChargingPumps Table4SJ.LUCIE-2LTOPSYSTEMCHARACTERISTICS, 20EFPYReliefValveAllnmentTemeratures('F)SACSReliefVabcesHUCDPORV,.=-.HUCD<172<196172-330196-3214050100<9696"367>36720305075100MaximumAllowable HeatuandCooldownRatesHU,F/HRTemperature Limit,FCD,F/HRTemperature Limit,~F<121121"147~147"'l63>163LTOPSstemGeneralReuirements

[Maximum)

LTOPTemperatures:

~-ForHeatup:ForCooldown:

MaximumSecondary.-to-Primary Temperature Differential forRCPStart:MaximumCalibration IntervalforPressurizer PressureTransmitters:

MaximumNumberofRCPsAllowedtoOperatebelow200F:HPSIandChargingPumpCombinations AllowedtobeAlignedtotheRCS:AtT<2000FAt200F<T<330FAtT>330~Fc3300F3214F400F18monthsTwo2ChargingPumps1HPSIC3ChargingPumps2HPSI63ChargingPumps Table5ST.LUCIE-2LTOPSYSTEMCHARACTERISTICS, 25EFPYSIX;$ReliefValvesHUCDReliefValveAllnmentTemeratures(OF)PORV.'UCD~<178<201178-335201-326MaximumAllowable HeatuandCooldownRatesHU,F/HR~Temperature Limit,FCD,F/HRTemperature Limit,F4050100<102109-36736720305075100<8383-126126"152152-168>168'LTOPSstemGeneralReuirements fMaximum)LTOPTemperatures:

ForHeatup:ForCooldown:

MaximumSecondary-to-Primary Temperature Differential forRCPStart:MaximumCalibration IntervalforPressurizer PressureTransmitters:

MaximumNumberofRCPsAllowedtoOperatebelow200F:HPSIandChargingPumpCombinations AllowedtobeAlignedtotheRCS:AtT<200~FAt200oF<T<335oFc-AtT>335oFC3350F326oF40oF18monthsTwo2ChargingPumps1HPSI63ChargingPumps2HPSIC3ChargingPumps Table6ST.LUCIE-2LTOPSYSTEMCHARACTERISTICS,

'30EFPYSM;SReliefVaivqsHUCDReliefValveAllnmentTemeratures(~F)PORV.HUCD<182<205182-339205-330MaximumAllowable BeatuandCooldownRatesHU,F/HRTemperature Limit,FCD,oF/HRTemperature Limit,F4050100<106106-367>36720305075100<8787-130130-156156-172>172LTOPSstemGeneralReuirements

[MaximumJLTOPTemperatures:

ForHeatup:ForCooldown:

MaximumSecondary-to-Primary Temperature Differential forRCPStart:MaximumCalibration IntervalforPressurizer PressureTransmitters:

MaximumNumberofRCPsAllowedtoOperatebelow2000F:HPSIandChargingPumpCombinations AllowedtobeAlignedtotheRCS:AtT<200FAt2000F<T<339oFc-AtT>>339oFC339~F330~F000F18monthsTwo2ChargingPumps1HPSI63ChargingPumps2HPSI63ChargingPumps Table7ST.LUCIE-2LTOPSYSTEMCHARACTERISTICS, 32EFPYSDCSReliefValv.esHUCDReliefValveAlinmentTemeratures(oF)PORV.HUCD<184<207184-341207-332MaximumAllowable HeatuandCooldownRatesHU,F/HRTemperature Limit,FCD,F/HRTemperature Limit,oF4050100<108108"367>36720305075100<8989-132132-158158"174>174LTOPSstemGeneralReuirements

[Maximum]

LTOPTemperatures:

ForHeatup:ForCooldown:

MaximumSecondary-to-Primary Temperature Differential forRCPStart:MaximumCalibration IntervalforPressurizer PressureTransmitters:

MaximumNumberofRCPsAllowedtoOperatebelow200'F:HPSIandChargingPumpCombinations AllowedtobeAlignedtotheRCS:AtT<200FcAt200F<T<341oFc-AtT>341~FC341oF3320F40'F18monthsTwo2ChargingPumps1HPSI63ChargingPumps2HPSIC3ChargingPumps 25002000ca16000QICJ0RChCJ4100000ST.LUCIE-2P/7LIMITS,16EFPYHEATUPANDCORECRITICAL60oF/HRLOWESTSERVICETEMP.1684FCORECRITICAL-60F/HRNAXimumALLotdA~H/Q~~F/HRHU,F/HRTpepceature LImit,F535PSIAcia85-3C7i3C71050'IOOMIN.SOLTUPTEMP.TCINOICATEO REACTORCOOLANTTEMPERATURE oF STLUCIE.2P/TLIMITS,46EFPYCOOLDOWNANDINSERVICE TESTINSERVICE TESTga.1600CCMLCS1000IC7ARCJgl4.600LOWESTSERVICETEMP.1684FISOTHERMAL

-30F/HR-F/HTHERMR&ISO20305075100c11518-1e1111-157~157MAW~niwnALLau)ABLE, 4RATCO,F/HRTeeperature umit,1=0MIN.BOLTUPTEMP.TC~INDICATED REACTORCOOLANTTEMPERATURE, F

n/~FogygST.LUCIE-2P/TLIMITS,20EFPYHEATUPANDCORECRITICAL250050F/HR20001500NIL1000Q.,K500LOWESTSERVICETEMP.1684F504F/H4PF/HR535PSICORECRITICALtntsieveA~up,a~'YSSHU,F/HRTeeperature Llmlt,4FMIN.BOLTUPTEMP.4050)00c9694-367i367TCINDICATED REACTORCOOLANTTEMPERATURE'I II ST.LUCIE-2P/TLIMITS,20EFPYCOOLDOWNANDINSERVICE TEST2500INSERVICE TESTa.1500etcNtt;01NWCJ4a5500LOWESTSERVICETEMP168oFISOTHERMAL SO4F/HRSO1004F/HR8cISOTHEAL-20305075100ct21'IS-147117-163~Ni3Mhtmcj~At.mesh~COgAZgzI,OF/HRTemperature LImIt,OF00MIN.BOLTUPTEMP.TC-INDICATED REACTORCOOLANTTEMPERATURE, oF ST.LUCS,26EFPYHEATUPANDCORECRITICAL250060F/HR2000g1600NK1000C7z'0LOWESTSERVICETEMP168oF604F/HRF/HR635PSIACORECRITICALNhwimu~Ai<ouope.a.HU,FIHRTeeperature Umit,F00MIN.BOLTUPTEMP,10SO100<1021Q-3C7367TCINDICATED REACTORCOOLANTTEMPERATURE oF

ST.LUCIE-2P/TLIMITS,26EFPYCOOLDOWNANDINSERVICE TESTINSERVICETEST2000gcg.1600N1000C8:5CLLOWESTSERVICE.TEMP.1684FISOTHERMAL

.:.304F/HR100HR8cISOTHERMAL 20305075100ce3el-126126-1$2152-16eF168NAWWunlAu.p+ABI.E, 4DRNES'O,F/HRTemperature LImit,F00MIN.BOLTUPTEMP.TCINDICATED REACTORCOOLANTTEMPERATURE, F

ST.LUCIE-2P/TLIMITS,30EFPYHEATUPANDCORECRITICAL604F/HR2000Os1500N1000AR4=LOWESTSERVICE~TEMP.1884F50F/HRF/HR638PSIARECRITICALHU,F/HRTamperature Limit,F00ININ.BOLTUPTEINP.IO50100<<1061Q-367>367TCINDICATED REACTORCOOLANTTElNPERATURE,4F STLUCIE-2P/TLIMITS,30EFPYCOOLDOWNANDINSERVICE TESTINSERVICE TEST20001600N4>000C(J.RLOWESTSERVICETEMP)B8oFISOTHERMAL 30F/HR100F/H5ISOTMAL~(hlU4ALL~ABLE0RATESI,4F/HRTemperature Umit,F20305075100c87l7"130130-'I56156"172>1720MIN.BOLTUPTEMP.TC-INDICATED REACTORCOOLANTTEMPERATURE, F

ST.LUCIE-2P/TLIMITS,32EFPYHEATUPANDCORECRITICALQPF/HR1600NlCLOWESTSERVICETEMP.1%IFCORECRITICALQPF/HRPA%(~v+~4~8MH0QATaSF/HRS35PSIAHU,4F/HRTanperature LImlt,4F1050IOOclMlQ"367%367PpMIN.BOLTUPTEMP.TCiNDICATED REACTORCOOLANTTEMPERATURE' ST.LUCIE-2P/TLIMITS,32EFPYCOOLDOWNANDINSERVICE TESTINSERVICE TEST1SOO41000IQR5sooISOTHERMAL30F/HRLOWESTSERVICETEMP.1684F100F/HR8cISOTHfRMAL20305075100<dS1%-132132"15015d-171%171~%imamAu,a~n~sCO,4F/HRTenpec'ature Limit,4F00N.BOLTUPTEMP.100200300400TCINDICATED REACTORCOOLANTTEMPERATURE, F

REACTORCOOLANTSYSTEMSURVEILLANCE REUIREMENTS Continued 4.4.9.1.2Thereactorvesselmaterialirradiation surveillance specimens shallberemovedandexamined, todetermine changesinmaterialproperties, attheintervals requiredby10CFR50AppendixHinaccordance withthescheduleiTable4.4-5.Theresultsoftheseexaminations shallbeusedtoupdate'ST.LUCIE"UNIT23/44-30 REACTORCOOLANTSYSTEMOVERPRESSURE PROTECTION SYSTEMSLIMITING'CONOITION FOROPERATION Moga4Oosees5'aJPsoi'64<ereadov-vessellleUovIIso>ow+ŽIslessf'4~ovuJfo+<Qppr>plve,k v4<<gm<~I,e.3,+-3.3.4.9.3Atleastoneofthefollowinoverpressure protection systemsshallbeOPERABLE:

$7oa.Twopower-operated relivalves(PORVs),~are-with aliftsettingoflessthanorequaltopsia>a~dt~oshut~coot~qsyd~~r(i~FVnJVe5DCSRVg)>ACCOSYaliftSeft'in'f leSSf4~Orlq+SLlto$56PSi<~b.TheReactorCoolantSystemdepressurized withanRCSventofgreaterthanorequalto3.58squareinches.APPLICABILITY:

ACTION:b.C.orogi~Spt5i'VogSbcSRVWithonePORVinoperae,restoretheinoperable PORVtoOPERABLEstatuswithin7daysordepressurize andventtheRCSthroughagreaterthanorequalto3.58squareinchvent(s)withinthenext8hours.begsDcsRL(gWithbothPORsinoperable, depressurize andventtheRCSthroughagreaterthanorequalto3.58suareinchvent(s)within8hours.SDCSVsIntheeventeitherthePORs~ortheRCSvent(s)areusedtomitigateaRCSpressuretransient, aSpecialReportshallbepreparedandsubmitted totheCommission pursuanttoSpecifiction6.9.2within30days.ThereportshalldescribethesbcsRVscircumstances initiating thetransient, theeffectofthePORsorvent(s)onthetransient andanycorrective actionnecessary topreventrecurrence.

d.Theprovisions ofSpecification 3.0.4arenotapplicable.

SURVEILLANCE REUIREMENTS 4.4.9.3.1EachPORVshallbedemonstrated OPERABLEby:a.Inadditiontotherequirements ofSpecification 4.0.5,operating thevalvethroughonecompletecycleoffulltravelatleastonceper18months.ST.LUCIE-UNIT23/44"36 TABLE3.4-3LOWTEMPERATURE OVERPRESSURE PROTECTION MaximumLTOPTemerature(F)TimeinLife(EFP)~HeatuCooldown0-55-l0I0-I5I5-2020-2525-3030-322953I332433033533934I2863043I532I326330332MA53/026/8 REACTORCOOLANTSYSTEMBASES3/4.4.9PRESSURE/TEMPERATURE LIMITSAllcomponents intheReactorCoolantSystemaredesignedtowithstand theeffectsofcyclicloadsduetosystemtemperature andpressurechanges.Thesecyclicloadsareintroduced bynormalloadtransients, reactortrips,andstartupandshutdownoperations.

Thevariouscategories ofloadcyclesusedfordesignpurposesareprovidedinSection5.2oftheFSAR.Ouringstartupandshutdown, theratesoftemperature andpressurechangesarelimitedsothatthemaximumspecified heatupandcooldownratesareconsistent withthedesignassumptions andsatisfythestresslimitsforcyclicoperation.

Duringheatup,thethermalgradients inthereactorvesselwallproducethermalstresseswhichvaryfromcompressive attheinnerwalltotensileattheouterwall.Thesethermalinducedcompressive stressestendtoalleviate thetensilestressesinducedbytheinternalpressure.

Therefore, apressure-temperature curvebasedonsteadystateconditions (i.e.,nothermalstresses) represents alowerboundofallsimilarcurvesforfiniteheatuprateswhentheinnerwallofthevesselistreatedasthegoverning location.

Theheatupanalysisalsocoversthedetermination ofpressure-temperature limitations forthecaseinwhichtheouterwallofthevesselbecomesthecontrolling location.

Thethermalgradients established duringheatupproducetensilestressesattheouterwallofthevessel.Thesestressesareadditivetothepressureinducedtensilestresseswhicharealreadypresent.Thethermalinducedstressesattheouterwallofthevesselaretensileandaredependent onboththerateofheatupandthetimealongtheheatupramp;therefore, alowerboundcurvesimilartothatdescribed fortheheatupoftheinnerwallcannotbedefined.Consequently, forthecasesinwhichtheouterwallofthevesselbecomesthestresscontrolling

location, eachheatuprateofinterestmustbeanalyzedonanindividual basis.TheheatupandcooldownlimitcurvesFiguresarecomposite curveswhichwerepreparedbydetermining temostconservasvecase,witheithertheinsideoroutsidewallcontrolling, foranyheatuporcooldownratesofupto100'Fperhour.Theheatupandcooldowncurveswerepreparedbaseduponthemostlimitingvalueofthepredicted adjustedreference p0hig+he,Qpplicabl~

/<au~~a~o~gFigures9,9-2.w~ghz.+-<z.

Thereactorvesselmaterials havebeentestedtodetermine theirinitialRTNOTtheresultsofthesetestareshowninTableB3/4.4-1.,,Reactoropera-tionandresultant fastneutron(Egreaterthan1MeV)irradiation willcauseanincreaseintheRT>OT.Therefore, anadjustedreference temperature, baseduponthefluenceandcoppercontentofthematerial'inquestion, canbepredicted usingFigur83/4.4-1andtherecommendations ofRegulatory Guide1.99,Revisio,"EffectsofResidualElementsonPredicted Radiation OamagetoeactorVesselMaterials."

TheheatupandcooldownlimitcurvesFiguresincludepredicted adjustments forthisshiftinRT>>attheendoftheapplicable serviceperiod,aswellasadjustments forpo45ibleerrorsinthepressureandtemperature sensinginstruments.

ST.LUCIE-UNIT2B3/44-8

REACTORCOOLANTSYSTEMBASES.PRESSURE/TEMPERATURE LIMITSContinued TheactualshiftinRTN>Tofthevesselmaterialwillbeestablished periodically duringoperation byremovingandevaluating, inaccordance withASTNE185-73and10CFRAppendixH,reactorvesselmCerialirradiation surveil-lancespecimens installed neartheinsidewallofthereactor,vesselinthecorearea.Thesurveillance specimenwithdrawal scheduleisshowninTable4.4-5.Sincetheneutronspectraattheirradiation samplesandvesselinsideradiusareessentially identical, themeasuredtransition shiftforasamplecanbeappliedwithconfidence totheadjacentsectionofthereactorvessel.Theheatupandcooldowncurvesmustberecalculated whenthedeltaRTNOTdetermined fromthesurveillance capsuleisdifferent fromthecalulteddeltaRTNOTfortheequivalent capsuleradiation exposure.

Thepressure-temperature limitlinesshownonFiguresforreactorcriticality andforinservice leakandhydrostatic testinghavebeenprovidedtoassurecompliance withtheminimumtemperature requiyements ofAppendixGto10CFR50.ThemaximumRTN>TforallReactorCoolantSystempressure-retaining mate-rials,with,theexception ofthereactorpressurevessel,hasbeendetermedto50F.TheLowestServiceTemperature limitlineshownonFiguresisbaseduponthisRTsinceArticleNB-2332(SummerAdendaof1972)ofSectionIIIoftheASIDEBo)NrandPressureVesselCoderequirestheLowestServiceTemperature tobeRTN>T+100Fforpiping,pumps,andvalves.Belowthistemperature, thesystempressuremustbelimitedtoamaximumof20Kofthesystem'shydrostatic testpressureof3125psia.Thelimitations.

imposedonthepressurizer heatupandcooldownratesandspraywatertemperature differential areprovidedtoassurethatthepres-surizerisoperatedwithinthedesigncriteriaassumedforthetperformed inaccordance withthC4a)cp>F+gwcsMiaafvcsresoreQahmAgTheOPERABILITY oftwoPOsoranventopeningofgreaerthan3.58squareinchesensuresthattheRCSwillbeprotected frompressuretransients whichcouldexceedthelimitsofAppendixGto10CFRPart50whenoneormoreoftheRCScoldlegsarelessthanorequalto280Fduringcooldownand320Fduringheatup.hasadeuaterelievcapability toprotecttheRCSfromoverpressur zatsonwhentetransient islimitedtoeither(1)asafetyinjection actuation inawater-solid RCSwiththepressurizer heatersenergized or(2)thestartofanidleRCPwiththesecondary watertemperature ofthesteamgenerator lessthanorequalto4894abovetheRCScoldlegtemperatures withthepressurizer solid.ST.LUCIE-UNIT2B3/44-11 0aejat