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{{#Wiki_filter:St.LucieUnit2DocketNo.50-389ProposedLicenseAmendment~BoronDilutioIterimLTTAHMENT3toL-99-010ST.LUCIEUNIT2MARKED-UPTECHNICALSPECIFICATIONPAGESINDEXPageIVLISTOFTABLESPageXXIIIPage3/41-16Page3/41-17PageB3/41-39903030i84990223PDRADQCK05000389.P.PDR INDEXLIMITINGCONDITIONSFOROPERATIONANDSURVEILLANCEREUIREMENTSSECTION3/4.0APPLICABILITY.................................PAGE3/40-13/4.1REACTIVITYCONTROLSYSTEMS3/4-1~1BORATIONCONTROLSHUTDOWNMARGIN-T>200F...........SHUTDOWNMARGIN-T<200F...........BORONDILUTION.MODERATQRTEMPERATURECOEFFICIENT..MINIMUMTEMPERATUREFORCRITICALITY.3/4l-l3/41-33/41-43/41-53/41-63/4.1.2BQRATIQNSYSTEMSFLOWPATHS-SHUTDOWN.FLOWPATHS-OPERATING..............CHARGINGPUMPS-SHUTDOWN.CHARGINGPUMPS-QPERATING..........BORICACIDMAKEUPPUMPS-SHUTDOWN..BORICACIDMAKEUPPUMPS"OPERATING.BORATEDWATERSOURCES-SHUTDOWN.BORATEDWATERSOURCES-OPERATING...-BOReN-DWUTW.3/41-73/41"83/41-93/41-XQ3/41"113/41"123/41-133/41-143/4.1.3MQVABLECONTROLASSEMBLIESCEAPOSITION.~0~~~~~~t~0~~~~t~t0~~0~~01\POSITIONINDICATORCHANNELS-OPERATING........POSITIONINDICATORCHANNELS-SHUTDOWN.CEADROPTIME..~0~~~~I~10~~i0~~~~i~~SHUTDOWNCEAINSERTIONLIMIT...................REGULATINGCEAINSERTIONLIMITS3/41-183/41-213/41-233/41-243/41-253/41-26ST..LUCIE-UNIT2IV>g~~PPo.
{{#Wiki_filter:St.LucieUnit2DocketNo.50-389ProposedLicenseAmendment
FREQUENCYNOTATION1-81.2OPERATIONALMODES1-92.2-1REACTORPROTECTIVEINSTRUMENTATIONTRIPSETPOINTLIMITS~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~o2A3.1-1WGNR-BRING-FREGUENGIES-FGFH3AEFHrFIel+FBR~UGIGRet+BIEFRGN-3.2-1DELETED..~~~~~~~~~~~~~~~~~~~~42113.2-2DNBMARGINLIMlTS3/42-153.3-1REACTORPROTECTIVEINSTRUMENTATION...........3/43-23.3-2DELETED..4.3-1REACTORPROTECTIVEINSTRUMENTATIONSURVEILLANCEREQUIREMENTS3/43-830333.3-4~~~~\~~~~~~~~~~~~~~~~~~~~~~o3/43123/43-17ENGINEEREDSAFETYFEATURESACTUATIONSYSTEMINSTRUMENTATIONENGINEEREDSAFETYFEATURESACTUATIONSYSTEMINSTRUMENTATIONTRIPVALUES.................335~35DELemD~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~4.3-2ENGINEEREDSAFETYFEATURESACTUATIONSYSTEMINSTRUMENTATIONSURVEILLANCEREQUIREMENTS.............3/43-223.3-6RADIATIONMONITORINGINSTRUMENTATION...3/43-254.3-3RADIATIONMONITORINGINSTRUMENTATIONSURVEILLANCEREQUIREMENTS..3/43-283.3-8DELETED..4.3-5-DELETED..ST.LUCIE-UNIT2XXIIIAmendmentNo.e,ea.~gtt ORONILUTIONLIMITINGCDITIONFOROPERATION3.1.2.9BorononcentrationshallbeverifiedconsistentwithSHUTDOMARGINrequirementsofecifications3.1.1.1,3.1.1.2,,and3.9.1.APPLICABILITY:a.MODES3,4,nd5withRCSlevelabovethehotnterlinebyuseofboronometeorsamplingperTable3.1-1,nhb.ACTION:MODE5withRCSvelbelowthehotlegsamplingperTable3.1-1.nerle;andMODE6byaob.WiththeboronconcentrtionnotcotntwithrequiredSHUTDOWNMARGIN,initiateemergenboatio.Ifunabletodetermineheroconcentrationbythemeansspeci-fiedabove,immediatelsspdaloperationsinvolvingCOREALTERATIONSorpositiveeaiichangesuntiloneofthemeansofdeterminingg4boncoentrationasspecifiedaboveisrestored,toOPELEstus.C.Theprovisionsofeficaon.0.arenotapplicable.SURVEILLANCEREOUIREMENTS4.1.2.9a0WheninMODES34,5,a6,theboronconcentationshallbedeterminedcoistenthSHUTDOWNMARGINrequiementsonceper8hours.cTheboronmeterwhenusedtomonitorboronconcentrtion,shallbedemonstrtedERABLEbyperformanceof:1.CNELCHECKonceper12hours,and2.aCHANNELCALIBRATIONonceper18months.eneverperforminganRCSheatuporcooldown,determinetheronconcentrationatleastonceeve50Fchaneinternerature..~e~eN/N'~7(Amevd~eIA.,&)4aehe~daleIed~+Nc'L~OICQae'e<~Ops-Ill,yH~CLS~AI-l8~ST.LUCIE"UNIT23/41-16~wnl0.
~BoronDilutioIterimLTTAHMENT3toL-99-010ST.LUCIEUNIT2MARKED-UP TECHNICAL SPECIFICATION PAGESINDEXPageIVLISTOFTABLESPageXXIIIPage3/41-16Page3/41-17PageB3/41-39903030i84 990223PDRADQCK05000389.P.PDR INDEXLIMITINGCONDITIONS FOROPERATION ANDSURVEILLANCE REUIREMENTS SECTION3/4.0APPLICABILITY.................................
1 TABLE3.1-1MONITORINGFREQUENCIESFORBACKUPBORONDILUTIONDETECTIOFORST.LUCIE-2MODENumberofOPERABLEChargingPus*012312hr100min40min25min5(RCSlevelbelowhotlegcenterline)12hr130min50min30minhr100min40n25min8h35min0erationnotOperationnotllowed**allowed**24hr2in95min55min*ChargingpumpOPERABILITYforanper'oftimeshallconstituteOPERABILITYfortheentiremoniringfquency.I~*~I**InMODE5withtheRCSlevbelowthehlegcenterline,atleasttwochargingpumpsshalleverifiedtobeinoperablebyrackingouttheirmotorcircuitbreers.PEltVQpLp~p~iJPAs~+<~pic.ALST.LUCIE-UNIT23/41-17AmendmentNo.  
PAGE3/40-13/4.1REACTIVITY CONTROLSYSTEMS3/4-1~1BORATIONCONTROLSHUTDOWNMARGIN-T>200F...........
SHUTDOWNMARGIN-T<200F...........
BORONDILUTION.
MODERATQR TEMPERATURE COEFFICIENT..
MINIMUMTEMPERATURE FORCRITICALITY.
3/4l-l3/41-33/41-43/41-53/41-63/4.1.2BQRATIQNSYSTEMSFLOWPATHS-SHUTDOWN.
FLOWPATHS-OPERATING..............
CHARGINGPUMPS-SHUTDOWN.
CHARGINGPUMPS-QPERATING..........
BORICACIDMAKEUPPUMPS-SHUTDOWN..
BORICACIDMAKEUPPUMPS"OPERATING.
BORATEDWATERSOURCES-SHUTDOWN.
BORATEDWATERSOURCES-OPERATING...
-BOReN-DWUTW
.3/41-73/41"83/41-93/41-XQ3/41"113/41"123/41-133/41-143/4.1.3MQVABLECONTROLASSEMBLIES CEAPOSITION.
~0~~~~~~t~0~~~~t~t0~~0~~01\POSITIONINDICATOR CHANNELS-OPERATING........
POSITIONINDICATOR CHANNELS-SHUTDOWN.
CEADROPTIME..~0~~~~I~10~~i0~~~~i~~SHUTDOWNCEAINSERTION LIMIT...................
REGULATING CEAINSERTION LIMITS3/41-183/41-213/41-233/41-243/41-253/41-26ST..LUCIE-UNIT2IV>g~~PPo.
FREQUENCY NOTATION1-81.2OPERATIONAL MODES1-92.2-1REACTORPROTECTIVE INSTRUMENTATION TRIPSETPOINTLIMITS~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~o2A3.1-1WGNR-BRING-FREGUENGIES-FGFH3A EFHrFIel+FBR~UGI GRet+BIEFRGN-3.2-1DELETED..~~~~~~~~~~~~~~~~~~~~42113.2-2DNBMARGINLIMlTS3/42-153.3-1REACTORPROTECTIVE INSTRUMENTATION...........
3/43-23.3-2DELETED..4.3-1REACTORPROTECTIVE INSTRUMENTATION SURVEILLANCE REQUIREMENTS 3/43-830333.3-4~~~~\~~~~~~~~~~~~~~~~~~~~~~o3/43123/43-17ENGINEERED SAFETYFEATURESACTUATION SYSTEMINSTRUMENTATION ENGINEERED SAFETYFEATURESACTUATION SYSTEMINSTRUMENTATION TRIPVALUES.................
335~35DELemD~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~4.3-2ENGINEERED SAFETYFEATURESACTUATION SYSTEMINSTRUMENTATION SURVEILLANCE REQUIREMENTS.............
3/43-223.3-6RADIATION MONITORING INSTRUMENTATION
...3/43-254.3-3RADIATION MONITORING INSTRUMENTATION SURVEILLANCE REQUIREMENTS
..3/43-283.3-8DELETED..4.3-5-DELETED..ST.LUCIE-UNIT2XXIIIAmendment No.e,ea.~gtt ORONILUTIONLIMITINGCDITIONFOROPERATION 3.1.2.9Borononcentration shallbeverifiedconsistent withSHUTDOMARGINrequirements ofecifications 3.1.1.1,3.1.1.2,,
and3.9.1.APPLICABILITY:
a.MODES3,4,nd5withRCSlevelabovethehotnterlinebyuseofboronomete orsamplingperTable3.1-1,nhb.ACTION:MODE5withRCSvelbelowthehotlegsamplingperTable3.1-1.nerle;andMODE6byaob.WiththeboronconcentrtionnotcotntwithrequiredSHUTDOWNMARGIN,initiateemergenboatio.Ifunabletodetermine heroconcentration bythemeansspeci-fiedabove,immediatel sspdaloperations involving COREALTERATIONS orpositiveeaiichangesuntiloneofthemeansofdetermining g4boncoentration asspecified aboveisrestored,to OPELEstus.C.Theprovisions ofeficaon.0.arenotapplicable.
SURVEILLANCE REOUIREMENTS 4.1.2.9a0WheninMODES34,5,a6,theboronconcentationshallbedetermined coistenthSHUTDOWNMARGINrequiementsonceper8hours.cTheboronmeterwhenusedtomonitorboronconcentrtion,shallbedemonstrtedERABLEbyperformance of:1.CNELCHECKonceper12hours,and2.aCHANNELCALIBRATION onceper18months.eneverperforming anRCSheatuporcooldown, determine theronconcentration atleastonceeve50Fchaneinternerature..
~e~eN/N'~7(Amevd~eIA.,&)4aehe~daleIed~+Nc'L~OICQae'e<~Ops-Ill,yH~CLS~AI-l8~ST.LUCIE"UNIT23/41-16~wnl0.
1 TABLE3.1-1MONITORING FREQUENCIES FORBACKUPBORONDILUTIONDETECTIOFORST.LUCIE-2MODENumberofOPERABLEChargingPus*012312hr100min40min25min5(RCSlevelbelowhotlegcenterline) 12hr130min50min30minhr100min40n25min8h35min0erationnotOperation notllowed**allowed**
24hr2in95min55min*Charging pumpOPERABILITY foranper'oftimeshallconstitute OPERABILITY fortheentiremoniringfquency.I~*~I**InMODE5withtheRCSlevbelowthehlegcenterline, atleasttwochargingpumpsshalleverifiedtobeinoperable byrackingouttheirmotorcircuitbreers.PEltVQpLp~p~iJPAs~+<~pic.AL ST.LUCIE-UNIT 23/41-17Amendment No.  
'~qI  
'~qI  
-,,*""REACTIVITYCONTROLSYSTheOPERABILITYofoneboroninjectionsystemduringREFUELINGensuresthatthissystemisavailableforreactivitycontrolwhileinYlODE6.ThelimitsoncontainedwatervolumeandboronconcentrationoftheRlITalsoensureapHvalueofbetween7.0and8.0forthesolutionrecirculatedwithincontainmentafteraLOCA.ThispHbandminimizestheevolutionofiodineandminimizestheeffectofchlorideandcausticstresscorrosiononmechanicalsystemsandcomponents.8RBNHKtFR6ThesimultaueoftheboronometerandRCS.saintervalsdependentupontheMODEane-agnberofOPcarging.pumpstomonitorandredundantindicationsofanliowdeiowithsufficienttimefobeforeacompleteSHUTDONtheRCSboronconcentrationproviinadvertentborondi~lut'7zswilltermination*~orondi1utionevencurs.-3/4.1.3MOYABLECONTROLASSEMBLIESThespecificationsofthissectionensurethat(1)acceptablepowerdistributionlimitsaremaintained,(2}theminimumSHUTDOWNMARGINismain-tained,and(3)thepotentialeffectsofCEAmisalignmentsarelimitedtoacceptablelevels.TheACTIONstatementswhichpermitlimitedvariationsfromthebasicrequirementsareaccompaniedbyadditionalrestrictio'nswhichensurethattheoriginaldesigncriteriaaremet.TheACTIONstatementsapplicabletoastuckoruntrippableCEA,totwoormoreinoperableCEAsandtoalargemi.salignment(greaterthanorequalto15inches)oftwoormoreCEAs,requireapromptshutdownofthereactorsinceeitheroftheseconditionsmay.heindicativeofapossiblelossofmechanical.functionalcapabilityoftheCEAsandintheeventofastuckoruntrippab'.eCEA,thelossofSHUTDOWNMARGIN.'orsmallmisaliqnments(lessthan15inches)oftheCEAs,thereis(1)asmalleffectonthetame-dependentlong-termpowerdistributionsrelativetothoseusedingeneratingLCOsandLSSSsetpoints,(2)asmalleffectontheavailableSHUTDOWNMARGIN,and(3)asmalleffectontheejectedCEAworth~sedinthesafetyanalysis.Therefore,theACTIONstatementassociatedwithsmal1misalignmentsofCEAspermitsa1-hourtimeintervalduringwhichattemptsmaybemadetorestoretheCEAtowithinitsalignmentrequirements.The1-hourtimelimitissufficientto{1)identifycausesofamisalignedCEA,(2)takeappropriatecorrectiveaction=torealigntheCEAs,and(3)minimizetheeffectsofxenonredistribution.Thecontainedwatervolumelimitsincludesallowanceforwaternotavailablebecauseofdischargelinelocationandotherphysicalcharacteristics.ST.LUCIE-UNIT283/41-3AmendmentNo.  
-,,*""REACTIVITY CONTROLSYSTheOPERABILITY ofoneboroninjection systemduringREFUELING ensuresthatthissystemisavailable forreactivity controlwhileinYlODE6.Thelimitsoncontained watervolumeandboronconcentration oftheRlITalsoensureapHvalueofbetween7.0and8.0forthesolutionrecirculated withincontainment afteraLOCA.ThispHbandminimizes theevolution ofiodineandminimizes theeffectofchlorideandcausticstresscorrosion onmechanical systemsandcomponents.
8RBNHKtFR6 Thesimultaueoftheboronometer andRCS.saintervals dependent upontheMODEane-agnberofOPcarging.pumpstomonitorandredundant indications ofanliowdeiowithsufficient timefobeforeacompleteSHUTDONtheRCSboronconcentration proviinadvertent borondi~lut'7zswilltermination
*~orondi1utionevencurs.-3/4.1.3MOYABLECONTROLASSEMBLIES Thespecifications ofthissectionensurethat(1)acceptable powerdistribution limitsaremaintained, (2}theminimumSHUTDOWNMARGINismain-tained,and(3)thepotential effectsofCEAmisalignments arelimitedtoacceptable levels.TheACTIONstatements whichpermitlimitedvariations fromthebasicrequirements areaccompanied byadditional restrictio'ns whichensurethattheoriginaldesigncriteriaaremet.TheACTIONstatements applicable toastuckoruntrippable CEA,totwoormoreinoperable CEAsandtoalargemi.salignment (greaterthanorequalto15inches)oftwoormoreCEAs,requireapromptshutdownofthereactorsinceeitheroftheseconditions may.heindicative ofapossiblelossofmechanical
.functional capability oftheCEAsandintheeventofastuckoruntrippab'.e CEA,thelossofSHUTDOWNMARGIN.'orsmallmisaliqnments (lessthan15inches)oftheCEAs,thereis(1)asmalleffectonthetame-dependent long-term powerdistributions relativetothoseusedingenerating LCOsandLSSSsetpoints, (2)asmalleffectontheavailable SHUTDOWNMARGIN,and(3)asmalleffectontheejectedCEAworth~sedinthesafetyanalysis.
Therefore, theACTIONstatement associated withsmal1misalignments ofCEAspermitsa1-hourtimeintervalduringwhichattemptsmaybemadetorestoretheCEAtowithinitsalignment requirements.
The1-hourtimelimitissufficient to{1)identifycausesofamisaligned CEA,(2)takeappropriate corrective action=to realigntheCEAs,and(3)minimizetheeffectsofxenonredistribution.
Thecontained watervolumelimitsincludesallowance forwaternotavailable becauseofdischarge linelocationandotherphysicalcharacteristics.
ST.LUCIE-UNIT283/41-3Amendment No.  
~'}}
~'}}

Revision as of 15:33, 29 June 2018

Proposed Tech Specs 3/4.1.2.9 Re Reactivity Control sys- Boron Dilution
ML17229B020
Person / Time
Site: Saint Lucie NextEra Energy icon.png
Issue date: 02/23/1999
From:
FLORIDA POWER & LIGHT CO.
To:
Shared Package
ML17229B019 List:
References
NUDOCS 9903030184
Download: ML17229B020 (9)


Text

St.LucieUnit2DocketNo.50-389ProposedLicenseAmendment

~BoronDilutioIterimLTTAHMENT3toL-99-010ST.LUCIEUNIT2MARKED-UP TECHNICAL SPECIFICATION PAGESINDEXPageIVLISTOFTABLESPageXXIIIPage3/41-16Page3/41-17PageB3/41-39903030i84 990223PDRADQCK05000389.P.PDR INDEXLIMITINGCONDITIONS FOROPERATION ANDSURVEILLANCE REUIREMENTS SECTION3/4.0APPLICABILITY.................................

PAGE3/40-13/4.1REACTIVITY CONTROLSYSTEMS3/4-1~1BORATIONCONTROLSHUTDOWNMARGIN-T>200F...........

SHUTDOWNMARGIN-T<200F...........

BORONDILUTION.

MODERATQR TEMPERATURE COEFFICIENT..

MINIMUMTEMPERATURE FORCRITICALITY.

3/4l-l3/41-33/41-43/41-53/41-63/4.1.2BQRATIQNSYSTEMSFLOWPATHS-SHUTDOWN.

FLOWPATHS-OPERATING..............

CHARGINGPUMPS-SHUTDOWN.

CHARGINGPUMPS-QPERATING..........

BORICACIDMAKEUPPUMPS-SHUTDOWN..

BORICACIDMAKEUPPUMPS"OPERATING.

BORATEDWATERSOURCES-SHUTDOWN.

BORATEDWATERSOURCES-OPERATING...

-BOReN-DWUTW

.3/41-73/41"83/41-93/41-XQ3/41"113/41"123/41-133/41-143/4.1.3MQVABLECONTROLASSEMBLIES CEAPOSITION.

~0~~~~~~t~0~~~~t~t0~~0~~01\POSITIONINDICATOR CHANNELS-OPERATING........

POSITIONINDICATOR CHANNELS-SHUTDOWN.

CEADROPTIME..~0~~~~I~10~~i0~~~~i~~SHUTDOWNCEAINSERTION LIMIT...................

REGULATING CEAINSERTION LIMITS3/41-183/41-213/41-233/41-243/41-253/41-26ST..LUCIE-UNIT2IV>g~~PPo.

FREQUENCY NOTATION1-81.2OPERATIONAL MODES1-92.2-1REACTORPROTECTIVE INSTRUMENTATION TRIPSETPOINTLIMITS~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~o2A3.1-1WGNR-BRING-FREGUENGIES-FGFH3A EFHrFIel+FBR~UGI GRet+BIEFRGN-3.2-1DELETED..~~~~~~~~~~~~~~~~~~~~42113.2-2DNBMARGINLIMlTS3/42-153.3-1REACTORPROTECTIVE INSTRUMENTATION...........

3/43-23.3-2DELETED..4.3-1REACTORPROTECTIVE INSTRUMENTATION SURVEILLANCE REQUIREMENTS 3/43-830333.3-4~~~~\~~~~~~~~~~~~~~~~~~~~~~o3/43123/43-17ENGINEERED SAFETYFEATURESACTUATION SYSTEMINSTRUMENTATION ENGINEERED SAFETYFEATURESACTUATION SYSTEMINSTRUMENTATION TRIPVALUES.................

335~35DELemD~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~4.3-2ENGINEERED SAFETYFEATURESACTUATION SYSTEMINSTRUMENTATION SURVEILLANCE REQUIREMENTS.............

3/43-223.3-6RADIATION MONITORING INSTRUMENTATION

...3/43-254.3-3RADIATION MONITORING INSTRUMENTATION SURVEILLANCE REQUIREMENTS

..3/43-283.3-8DELETED..4.3-5-DELETED..ST.LUCIE-UNIT2XXIIIAmendment No.e,ea.~gtt ORONILUTIONLIMITINGCDITIONFOROPERATION 3.1.2.9Borononcentration shallbeverifiedconsistent withSHUTDOMARGINrequirements ofecifications 3.1.1.1,3.1.1.2,,

and3.9.1.APPLICABILITY:

a.MODES3,4,nd5withRCSlevelabovethehotnterlinebyuseofboronomete orsamplingperTable3.1-1,nhb.ACTION:MODE5withRCSvelbelowthehotlegsamplingperTable3.1-1.nerle;andMODE6byaob.WiththeboronconcentrtionnotcotntwithrequiredSHUTDOWNMARGIN,initiateemergenboatio.Ifunabletodetermine heroconcentration bythemeansspeci-fiedabove,immediatel sspdaloperations involving COREALTERATIONS orpositiveeaiichangesuntiloneofthemeansofdetermining g4boncoentration asspecified aboveisrestored,to OPELEstus.C.Theprovisions ofeficaon.0.arenotapplicable.

SURVEILLANCE REOUIREMENTS 4.1.2.9a0WheninMODES34,5,a6,theboronconcentationshallbedetermined coistenthSHUTDOWNMARGINrequiementsonceper8hours.cTheboronmeterwhenusedtomonitorboronconcentrtion,shallbedemonstrtedERABLEbyperformance of:1.CNELCHECKonceper12hours,and2.aCHANNELCALIBRATION onceper18months.eneverperforming anRCSheatuporcooldown, determine theronconcentration atleastonceeve50Fchaneinternerature..

~e~eN/N'~7(Amevd~eIA.,&)4aehe~daleIed~+Nc'L~OICQae'e<~Ops-Ill,yH~CLS~AI-l8~ST.LUCIE"UNIT23/41-16~wnl0.

1 TABLE3.1-1MONITORING FREQUENCIES FORBACKUPBORONDILUTIONDETECTIOFORST.LUCIE-2MODENumberofOPERABLEChargingPus*012312hr100min40min25min5(RCSlevelbelowhotlegcenterline) 12hr130min50min30minhr100min40n25min8h35min0erationnotOperation notllowed**allowed**

24hr2in95min55min*Charging pumpOPERABILITY foranper'oftimeshallconstitute OPERABILITY fortheentiremoniringfquency.I~*~I**InMODE5withtheRCSlevbelowthehlegcenterline, atleasttwochargingpumpsshalleverifiedtobeinoperable byrackingouttheirmotorcircuitbreers.PEltVQpLp~p~iJPAs~+<~pic.AL ST.LUCIE-UNIT 23/41-17Amendment No.

'~qI

-,,*""REACTIVITY CONTROLSYSTheOPERABILITY ofoneboroninjection systemduringREFUELING ensuresthatthissystemisavailable forreactivity controlwhileinYlODE6.Thelimitsoncontained watervolumeandboronconcentration oftheRlITalsoensureapHvalueofbetween7.0and8.0forthesolutionrecirculated withincontainment afteraLOCA.ThispHbandminimizes theevolution ofiodineandminimizes theeffectofchlorideandcausticstresscorrosion onmechanical systemsandcomponents.

8RBNHKtFR6 Thesimultaueoftheboronometer andRCS.saintervals dependent upontheMODEane-agnberofOPcarging.pumpstomonitorandredundant indications ofanliowdeiowithsufficient timefobeforeacompleteSHUTDONtheRCSboronconcentration proviinadvertent borondi~lut'7zswilltermination

  • ~orondi1utionevencurs.-3/4.1.3MOYABLECONTROLASSEMBLIES Thespecifications ofthissectionensurethat(1)acceptable powerdistribution limitsaremaintained, (2}theminimumSHUTDOWNMARGINismain-tained,and(3)thepotential effectsofCEAmisalignments arelimitedtoacceptable levels.TheACTIONstatements whichpermitlimitedvariations fromthebasicrequirements areaccompanied byadditional restrictio'ns whichensurethattheoriginaldesigncriteriaaremet.TheACTIONstatements applicable toastuckoruntrippable CEA,totwoormoreinoperable CEAsandtoalargemi.salignment (greaterthanorequalto15inches)oftwoormoreCEAs,requireapromptshutdownofthereactorsinceeitheroftheseconditions may.heindicative ofapossiblelossofmechanical

.functional capability oftheCEAsandintheeventofastuckoruntrippab'.e CEA,thelossofSHUTDOWNMARGIN.'orsmallmisaliqnments (lessthan15inches)oftheCEAs,thereis(1)asmalleffectonthetame-dependent long-term powerdistributions relativetothoseusedingenerating LCOsandLSSSsetpoints, (2)asmalleffectontheavailable SHUTDOWNMARGIN,and(3)asmalleffectontheejectedCEAworth~sedinthesafetyanalysis.

Therefore, theACTIONstatement associated withsmal1misalignments ofCEAspermitsa1-hourtimeintervalduringwhichattemptsmaybemadetorestoretheCEAtowithinitsalignment requirements.

The1-hourtimelimitissufficient to{1)identifycausesofamisaligned CEA,(2)takeappropriate corrective action=to realigntheCEAs,and(3)minimizetheeffectsofxenonredistribution.

Thecontained watervolumelimitsincludesallowance forwaternotavailable becauseofdischarge linelocationandotherphysicalcharacteristics.

ST.LUCIE-UNIT283/41-3Amendment No.

~'