ML17229A916: Difference between revisions

From kanterella
Jump to navigation Jump to search
(Created page by program invented by StriderTol)
(Created page by program invented by StriderTol)
Line 17: Line 17:


=Text=
=Text=
{{#Wiki_filter:e~sjl~~.L-98-294Attachment REFUELING OPERATIONS LIMITINGCONDITION FOROPERATION 3.9.11iThe.Spent FuelStorage:Pool shallbe.rmaintain'ed'.with:
{{#Wiki_filter:e~s jl~~.L-98-294 Attachment REFUELING OPERATIONS LIMITING CONDITION FOR OPERATION 3.9.11 iThe.Spent Fuel Storage:Pool shall be.rmaintain'ed'.with:
*agTihe:fu'el storage.poolwaterlevel'-'greater thanorequalto23ftoverthe.topoftrraalate" fuelaslsemblies.
*ag Tihe:fu'el storage.pool water level'-'greater than or equal to 23 ft over the.top of trraalate" fuel aslsemblies.
:seate'diin thestorageracks;andg~fhe1'uel,:storage po'oTboron con'centration greater,.than or,squat,to T720ippmJ APPLICABILITY:
:seate'diin the storage racks;and g~fhe 1'uel,:storage po'oTboron con'centration greater,.than or,squat,to T720ippmJ APPLICABILITY:
Wheneverirradiated fuelassemblies areinthespentfuelstoragepool.ACTION:gasWiththewttferlev'elrequirementeHtist~pecTfteastieit notsatisfied, jininediateltf suspendallmovementoffuelassemblies andcraneoperations wiihloadsinthefuelstorageareasandrestorethewaterleveltowithinitslimitwithin4hours.IWith,:;;the:;.
Whenever irradiated fuel assemblies are in the spent fuel storage pool.ACTION: gas With the wttfer lev'el requirementeHtist~pecTfteastieit not satisfied, jininediateltf suspend all movement of fuel assemblies and crane operations wiih loads in the fuel storage areas and restore the water level to within its limit within 4 hours.I With,:;;the:;.,boron'.,'concentration require'ment:
,boron'.,'concentration require'ment:
not':::,satIsfied, Immediately.
not':::,satIsfied, Immediately.
suspend,,:,'al movementiof fuelassemblies-.in thefuel.storage'pool and.initia'te.action-to restore:fue
suspend,,:,'al movementiof fuel assemblies-.in the fuel.storage'pool and.initia'te.action-to restore:fue storiage, pioioi:boion concentration to within the" ruequIred:
: storiage, pioioi:boion concentration towithinthe"ruequIred:
limiit I k 9 TIhe'provisions of Specification 3.0.3 are not applicable~<
limiitIk9TIhe'provisions ofSpecification 3.0.3arenotapplicable~<
SURVEILLANCE REQUIREMENTS 4.9.11 The water level in the spent fuel storage pool shall be determined to be at least its minimum required depth at least once per 7 days when irradiated fuel assemblies are in the fuel storage pool.4.0;1 1.1-'Verify thfuel storage pool boron concentrawtioii:iswithin,:[imit at leastonce per T,daysi ST.LUCIE-UNIT 2 3/4 9-12 Amenmdment'Ao j 98ii270i24 98ii25 PDR ADOCK 050003 9 P fDK EFUELING OPERATIONS BASES 3/4.9.10 and 3/4.9.11 MATER LEVEL"REACTOR VESSEL and STORAGE POOL spy%'uc,l The restrictions on minimum water level ensure that sufficient water depth is available to remove 99%of the assumed 10%iodine gap activity released from the rupture of an irradiated fuel assembly.The minimum water depth is consistent with the assumptions of the safety analysis.3/4.9.12 SPENT FUEL CASK CRANE The maximum load which may be handled by the spent fuel cask crane is limited to a loaded multi-element cask which is equivalent to approximately 100 tons.This restriction is provided to ensure the structural integrity of the spent fuel pool in the event of a dropped cask accident.Structural damage caused by dropping a load in excess of a loaded multi-element cask could cause leakage from the spent fuel pool in excess of the maximum makeup capability.
SURVEILLANCE REQUIREMENTS 4.9.11Thewaterlevelinthespentfuelstoragepoolshallbedetermined tobeatleastitsminimumrequireddepthatleastonceper7dayswhenirradiated fuelassemblies areinthefuelstoragepool.4.0;11.1-'Verifythfuelstoragepoolboronconcentrawtioii:iswithin,:[imit atleastonce perT,daysiST.LUCIE-UNIT23/49-12Amenmdment'Ao j98ii270i24 98ii25PDRADOCK0500039PfDK EFUELINGOPERATIONS BASES3/4.9.10and3/4.9.11MATERLEVEL"REACTOR VESSELandSTORAGEPOOLspy%'uc,l Therestrictions onminimumwaterlevelensurethatsufficient waterdepthisavailable toremove99%oftheassumed10%iodinegapactivityreleasedfromtheruptureofanirradiated fuelassembly.
The limit on soluble boron concentration in LCO 3/4.9.ii is consistent with the minimum boron concentration specified for the RWT, and assures an additional subcritical margin to the value of+i which is calculated in the spent fuel storage pool criticality safety analysis to satisfy the acceptance,)criteria of Specification 5.6.1.Inadvertent dilution of the spent fuel storage pool by the quantity of, unborated water necessary to reduce the pool boron concentration to a value that would invalidate the i;criticality safety analysis is not considered to be a credible event.The surveillance frequency specified-for verifying the boron concentration is consistent with NUREG-1432 and satisfies, in part, acceptance,!'criteria established by the NRC staff for approval of criticality safety analysis methods that take credit'or soluble boron in the pool water.The ACTIONS required for this LCO are designed to preclude an,'ccident from happening or to mitigate the consequences of an accident in progress, and shall not,i"preclude moving a fuel assembly to a safe position.ST.LUCIE-UNIT 2 B 3/4 9-3 Aeegdn e<4-Ro.  
Theminimumwaterdepthisconsistent withtheassumptions ofthesafetyanalysis.
.0 N t~J e V'P~t t}}
3/4.9.12SPENTFUELCASKCRANEThemaximumloadwhichmaybehandledbythespentfuelcaskcraneislimitedtoaloadedmulti-element caskwhichisequivalent toapproximately 100tons.Thisrestriction isprovidedtoensurethestructural integrity ofthespentfuelpoolintheeventofadroppedcaskaccident.
Structural damagecausedbydroppingaloadinexcessofaloadedmulti-element caskcouldcauseleakagefromthespentfuelpoolinexcessofthemaximummakeupcapability.
Thelimitonsolubleboronconcentration inLCO3/4.9.iiisconsistent withtheminimumboronconcentration specified fortheRWT,andassuresanadditional subcritical margintothevalueof+iwhichiscalculated inthespentfuelstoragepoolcriticality safetyanalysistosatisfytheacceptance,
)criteria ofSpecification 5.6.1.Inadvertent dilutionofthespentfuelstoragepoolbythequantityof,unborated waternecessary toreducethepoolboronconcentration toavaluethatwouldinvalidate thei;criticality safetyanalysisisnotconsidered tobeacredibleevent.Thesurveillance frequency specified
-forverifying theboronconcentration isconsistent withNUREG-1432 andsatisfies, inpart,acceptance,
!'criteria established bytheNRCstaffforapprovalofcriticality safetyanalysismethodsthattakecredit'orsolubleboroninthepoolwater.TheACTIONSrequiredforthisLCOaredesignedtoprecludean,'ccident fromhappening ortomitigatetheconsequences ofanaccidentinprogress, andshallnot,i"preclude movingafuelassemblytoasafeposition.
ST.LUCIE-UNIT2B3/49-3Aeegdne<4-Ro.  
.0Nt~JeV'P~tt}}

Revision as of 15:42, 7 July 2018

Proposed Tech Specs Pages,Replacing Insert-A,attachment to 971231 Submittal & Revises LCO 3.4.9.11 & Associated Bases
ML17229A916
Person / Time
Site: Saint Lucie NextEra Energy icon.png
Issue date: 11/25/1998
From:
FLORIDA POWER & LIGHT CO.
To:
Shared Package
ML17229A915 List:
References
NUDOCS 9811270124
Download: ML17229A916 (3)


Text

e~s jl~~.L-98-294 Attachment REFUELING OPERATIONS LIMITING CONDITION FOR OPERATION 3.9.11 iThe.Spent Fuel Storage:Pool shall be.rmaintain'ed'.with:

  • ag Tihe:fu'el storage.pool water level'-'greater than or equal to 23 ft over the.top of trraalate" fuel aslsemblies.
seate'diin the storage racks;and g~fhe 1'uel,:storage po'oTboron con'centration greater,.than or,squat,to T720ippmJ APPLICABILITY:

Whenever irradiated fuel assemblies are in the spent fuel storage pool.ACTION: gas With the wttfer lev'el requirementeHtist~pecTfteastieit not satisfied, jininediateltf suspend all movement of fuel assemblies and crane operations wiih loads in the fuel storage areas and restore the water level to within its limit within 4 hours4.62963e-5 days <br />0.00111 hours <br />6.613757e-6 weeks <br />1.522e-6 months <br />.I With,:;;the:;.,boron'.,'concentration require'ment:

not':::,satIsfied, Immediately.

suspend,,:,'al movementiof fuel assemblies-.in the fuel.storage'pool and.initia'te.action-to restore:fue storiage, pioioi:boion concentration to within the" ruequIred:

limiit I k 9 TIhe'provisions of Specification 3.0.3 are not applicable~<

SURVEILLANCE REQUIREMENTS 4.9.11 The water level in the spent fuel storage pool shall be determined to be at least its minimum required depth at least once per 7 days when irradiated fuel assemblies are in the fuel storage pool.4.0;1 1.1-'Verify thfuel storage pool boron concentrawtioii:iswithin,:[imit at leastonce per T,daysi ST.LUCIE-UNIT 2 3/4 9-12 Amenmdment'Ao j 98ii270i24 98ii25 PDR ADOCK 050003 9 P fDK EFUELING OPERATIONS BASES 3/4.9.10 and 3/4.9.11 MATER LEVEL"REACTOR VESSEL and STORAGE POOL spy%'uc,l The restrictions on minimum water level ensure that sufficient water depth is available to remove 99%of the assumed 10%iodine gap activity released from the rupture of an irradiated fuel assembly.The minimum water depth is consistent with the assumptions of the safety analysis.3/4.9.12 SPENT FUEL CASK CRANE The maximum load which may be handled by the spent fuel cask crane is limited to a loaded multi-element cask which is equivalent to approximately 100 tons.This restriction is provided to ensure the structural integrity of the spent fuel pool in the event of a dropped cask accident.Structural damage caused by dropping a load in excess of a loaded multi-element cask could cause leakage from the spent fuel pool in excess of the maximum makeup capability.

The limit on soluble boron concentration in LCO 3/4.9.ii is consistent with the minimum boron concentration specified for the RWT, and assures an additional subcritical margin to the value of+i which is calculated in the spent fuel storage pool criticality safety analysis to satisfy the acceptance,)criteria of Specification 5.6.1.Inadvertent dilution of the spent fuel storage pool by the quantity of, unborated water necessary to reduce the pool boron concentration to a value that would invalidate the i;criticality safety analysis is not considered to be a credible event.The surveillance frequency specified-for verifying the boron concentration is consistent with NUREG-1432 and satisfies, in part, acceptance,!'criteria established by the NRC staff for approval of criticality safety analysis methods that take credit'or soluble boron in the pool water.The ACTIONS required for this LCO are designed to preclude an,'ccident from happening or to mitigate the consequences of an accident in progress, and shall not,i"preclude moving a fuel assembly to a safe position.ST.LUCIE-UNIT 2 B 3/4 9-3 Aeegdn e<4-Ro.

.0 N t~J e V'P~t t