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| {{#Wiki_filter:AttachmentAMakethefollowingchangesintheTechnicalSpecification.Removepage3.11-2Insertpage3.11-28401250293840ii8PDR*DOCK05000244PPDR | | {{#Wiki_filter:Attachment AMakethefollowing changesintheTechnical Specification. |
| ~~3.11.23.11.33.11.4e.Charcoaladsorbersshallbeinstalled'ntheventilationsystemexhaustfromthespentfuelstoragepitareaandshallbeoperable.Radiationlevelsinthespentfuelstorageareashallbemonitoredcontinuously.tThetrolleyoftheauxiliarybuildingcraneshallneverbestationedorpermittedtopassoverstoragerackscontainingspentfuel.Thespentfuelpooltemperatureshallbelimitedto150'F.Basis:Charcoaladsorberswillreducesignificantlytheconsequencesofarefuelingaccidentwhichconsidersthecladfailureofasingleirradiatedfuelassembly.Therefore,charcoaladsorbersshouldbeemployedwheneverirradiatedfuelisbeinghandled.Thisrequiresthattheventilationsystemshouldbeoperatinganddrawingairthroughtheadsorbers.Thedesiredairflowpath,whenhandlingirradiatedfuel,isfromtheoutsideofthebuildingintotheoperatingfloorarea,towardthespentfuelstoragepit,intotheareaexhaustducts,throughthe3~112AmendmentNo.21,P4,P5Proposed AppendixBInordertoremovetherestrictionagainstthehandlingofaspentfuelshippingcaskbytheauxiliarybuildingcrane,theproposedmodificationwouldsatisfytherequirementsfordefiningthecranetobesinglefailureproofinaccordancewithNUREG-0554.AccordingtoNUREG-0612,beingabletomovealoadinasinglefailureproofmodeobviatestheneedtoanalyzethecaskdropaccident.The40tonauxiliarybuildingcranehasbeenreanalyzedforamaximumcriticalload(MCL)of30.5tonscharacterizedasaspentfuel*shippingcaskwitharedundantyoke.In=brief,therequiredmodificationincludesthefollowing:1.Replacementofthemainhoistgearbox.2.Replacementofmainhoistdrumwithanewdrumwitha24"pitchdiameter.Thisistoaccommodatethelargerropediameter(3/4")andallowareaonbothendsofthedrumforadiscbrakesystemandanoverspeeddevice.3.Providingamainhoistreevingsystemwithdualropesanda10:1safetyfactor.Thissystemincludesnewhoistrope,hookblock,headblockandequalizerbar.4.TheadditionofaYoungstowntypepowerlimitswitchtobackuptheexistinggeartypecontrollimitswitch.Thisprovidesprotectionagainsttwoblockingforthemainhoist.5.Additionofanoverspeeddevicetomonitordrumspeed.6.Theadditionofcircuitrytopreventbridgeandtrolleytravelwhilethemainhoistisoperating.Thisisforhang-upprotection.7.Theadditionofstructureunderthedrumtopreventitfromdroppingifthedrumshaftfails.8.Providingabrakingsystemapplieddirectlytothedrumwithanoverspeedswitch...Thispreventslossofload.atthedrumifthedrumshaftoranypartofthehoistdrivefails.9..Additionofoverloadsensingdevicetomotorcircuitstoprotecthoistingsystemfromoverloadonloadhangup.10.Additionofafloatingrailclamponthebridgeandtrolleyrailstoholdthemduringaseismicoccurrence.* | | Removepage3.11-2Insertpage3.11-28401250293 840ii8PDR*DOCK05000244PPDR |
| ll.Installathreephaselimitswitchthatintheeventofonelegofthethreephasepowersupplyde-energizingthebrakesystemwillbeengagedandallmovementoftheloadandhoistsystemwillstop.AnalysishasshownthatthemodifiedcranewillbeabletoholdtheMCIduringnormaloperationandduringtheoccurrenceofasafeshutdownearthquake.Thefollowingtestingwillbecompleted:1.Materialtestinginaccordancewithsection2.4,NUREG-0554.2.Allweldjointswhosefailurecouldresultinthedropofacriticalloadwillbenondestructivelyexamined(Section2.6).3.Apost-modificationtestprogramthatmeetsthegeneralrequirementsofSection8ofNUREG-0554.Sincetheauxiliarybuildingcranewillbesingle-failureproof,nosinglefailurecanresultinafuelcaskdrop.Thereforeafuelcaskdropdoesnotneedtobeanalyzed.WhiletheproposedmodificationwillsatisfytherequirementsofNUREG-0612whilemovingloadsinthesinglefailureproofmode,itmaynot.bepossibletomoveallloadsatalltimesinthismanner.RG6Zwillcontinuetoanalyzeloadsthat,cannotbemovedinasinglefailureproofmodeonacasebycasebasistosatisfytherequirementofNUREG-0612bysomecombinationofloaddropanalysis,loadheightrestrictionsandloadpath. | | ~~3.11.23.11.33.11.4e.Charcoaladsorbers shallbeinstalled'n theventilation systemexhaustfromthespentfuelstoragepitareaandshallbeoperable. |
| ~\AttachmentCInaccordancewith10CFR50.91thischangetotheTechnicalSpecificationshasbeenevaluatedagainstthreecriteriatodetermineiftheoperationofthefacilityinaccordancewiththeproposedamendmentwould:l.involveasignificantincreaseintheprobabilityorconsequencesofanaccidentpreviously'evaluated;or2.createthepossibilityofanewordifferentkindofaccidentfromanyaccidentpreviouslyevaluated;or3.involveasignificantreductioninamarginofsafety.Asoutlinedbelow,RochesterGas&Electricsubmitsthattheissuesassociatedwiththisamendmentrequestareoutsidethecriteriaof10CFR50.91,andtherefore,anosignificanthazardsfindingiswarranted.ilAttachmentBdiscussesthemodificationtobemadetotheauxiliarybuildingcrane.Theadditionoftheseredundantsafetyfeatureswillpreventthelossofcontrolofaloadshouldthesinglefailureofanycranecomponentoccur.Thereforeanosignificanthazardsfindingiswarrantedforthefollowingreasons:Theprobabilityofaloaddropisdecreased.2.Thepossibilityofacreated.differentkindofaccidentisnot3.ThereisanincreaseinthemarginofsafetyforthemovementofanyloadequaltoorlessthantheMCI. | | Radiation levelsinthespentfuelstorageareashallbemonitored continuously. |
| | tThetrolleyoftheauxiliary buildingcraneshallneverbestationed orpermitted topassoverstoragerackscontaining spentfuel.Thespentfuelpooltemperature shallbelimitedto150'F.Basis:Charcoaladsorbers willreducesignificantly theconsequences ofarefueling accidentwhichconsiders thecladfailureofasingleirradiated fuelassembly. |
| | Therefore, charcoaladsorbers shouldbeemployedwheneverirradiated fuelisbeinghandled.Thisrequiresthattheventilation systemshouldbeoperating anddrawingairthroughtheadsorbers. |
| | Thedesiredairflowpath,whenhandlingirradiated fuel,isfromtheoutsideofthebuildingintotheoperating floorarea,towardthespentfuelstoragepit,intotheareaexhaustducts,throughthe3~112Amendment No.21,P4,P5Proposed AppendixBInordertoremovetherestriction againstthehandlingofaspentfuelshippingcaskbytheauxiliary buildingcrane,theproposedmodification wouldsatisfytherequirements fordefiningthecranetobesinglefailureproofinaccordance withNUREG-0554. |
| | According toNUREG-0612, beingabletomovealoadinasinglefailureproofmodeobviatestheneedtoanalyzethecaskdropaccident. |
| | The40tonauxiliary buildingcranehasbeenreanalyzed foramaximumcriticalload(MCL)of30.5tonscharacterized asaspentfuel*shipping caskwitharedundant yoke.In=brief, therequiredmodification includesthefollowing: |
| | 1.Replacement ofthemainhoistgearbox.2.Replacement ofmainhoistdrumwithanewdrumwitha24"pitchdiameter. |
| | Thisistoaccommodate thelargerropediameter(3/4")andallowareaonbothendsofthedrumforadiscbrakesystemandanoverspeed device.3.Providing amainhoistreevingsystemwithdualropesanda10:1safetyfactor.Thissystemincludesnewhoistrope,hookblock,headblockandequalizer bar.4.TheadditionofaYoungstown typepowerlimitswitchtobackuptheexistinggeartypecontrollimitswitch.Thisprovidesprotection againsttwoblockingforthemainhoist.5.Additionofanoverspeed devicetomonitordrumspeed.6.Theadditionofcircuitry topreventbridgeandtrolleytravelwhilethemainhoistisoperating. |
| | Thisisforhang-upprotection. |
| | 7.Theadditionofstructure underthedrumtopreventitfromdroppingifthedrumshaftfails.8.Providing abrakingsystemapplieddirectlytothedrumwithanoverspeed switch...This preventslossofload.atthedrumifthedrumshaftoranypartofthehoistdrivefails.9..Addition ofoverloadsensingdevicetomotorcircuitstoprotecthoistingsystemfromoverloadonloadhangup.10.Additionofafloatingrailclamponthebridgeandtrolleyrailstoholdthemduringaseismicoccurrence. |
| | * ll.Installathreephaselimitswitchthatintheeventofonelegofthethreephasepowersupplyde-energizing thebrakesystemwillbeengagedandallmovementoftheloadandhoistsystemwillstop.AnalysishasshownthatthemodifiedcranewillbeabletoholdtheMCIduringnormaloperation andduringtheoccurrence ofasafeshutdownearthquake. |
| | Thefollowing testingwillbecompleted: |
| | 1.Materialtestinginaccordance withsection2.4,NUREG-0554. |
| | 2.Allweldjointswhosefailurecouldresultinthedropofacriticalloadwillbenondestructively examined(Section2.6).3.Apost-modification testprogramthatmeetsthegeneralrequirements ofSection8ofNUREG-0554. |
| | Sincetheauxiliary buildingcranewillbesingle-failure proof,nosinglefailurecanresultinafuelcaskdrop.Therefore afuelcaskdropdoesnotneedtobeanalyzed. |
| | Whiletheproposedmodification willsatisfytherequirements ofNUREG-0612 whilemovingloadsinthesinglefailureproofmode,itmaynot.bepossibletomoveallloadsatalltimesinthismanner.RG6Zwillcontinuetoanalyzeloadsthat,cannotbemovedinasinglefailureproofmodeonacasebycasebasistosatisfytherequirement ofNUREG-0612 bysomecombination ofloaddropanalysis, loadheightrestrictions andloadpath. |
| | ~\Attachment CInaccordance with10CFR50.91thischangetotheTechnical Specifications hasbeenevaluated againstthreecriteriatodetermine iftheoperation ofthefacilityinaccordance withtheproposedamendment would:l.involveasignificant increaseintheprobability orconsequences ofanaccidentpreviously |
| | 'evaluated; or2.createthepossibility ofanewordifferent kindofaccidentfromanyaccidentpreviously evaluated; or3.involveasignificant reduction inamarginofsafety.Asoutlinedbelow,Rochester Gas&Electricsubmitsthattheissuesassociated withthisamendment requestareoutsidethecriteriaof10CFR50.91,andtherefore, anosignificant hazardsfindingiswarranted. |
| | ilAttachment Bdiscusses themodification tobemadetotheauxiliary buildingcrane.Theadditionoftheseredundant safetyfeatureswillpreventthelossofcontrolofaloadshouldthesinglefailureofanycranecomponent occur.Therefore anosignificant hazardsfindingiswarranted forthefollowing reasons:Theprobability ofaloaddropisdecreased. |
| | 2.Thepossibility ofacreated.different kindofaccidentisnot3.ThereisanincreaseinthemarginofsafetyforthemovementofanyloadequaltoorlessthantheMCI. |
| 0-l07}} | | 0-l07}} |
Proposed Tech Spec Changes Deleting Restriction on Movement of Spent Fuel Shipping Casks W/Auxiliary Bldg CraneML17255A630 |
Person / Time |
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Site: |
Ginna ![Constellation icon.png](/w/images/b/be/Constellation_icon.png) |
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Issue date: |
01/18/1984 |
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From: |
ROCHESTER GAS & ELECTRIC CORP. |
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To: |
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Shared Package |
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ML17255A628 |
List: |
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References |
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NUDOCS 8401250293 |
Download: ML17255A630 (6) |
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[Table view] Category:TECHNICAL SPECIFICATIONS & TEST REPORTS
MONTHYEARML17250B3061999-10-20020 October 1999 Proposed Tech Specs,Consisting of 1999 Changes to TS Bases ML17265A6941999-06-28028 June 1999 Proposed Tech Specs,Revising ITS Associated with RCS Leakage Detection Instrumentation,As Result of Commitment Submitted as Part of Staff Review of Application of leak-before-break Status to Protions of RHR Piping ML17265A6401999-05-12012 May 1999 Rev 11 to Technical Requirements Manual for Ginna Station. ML17265A6261999-04-18018 April 1999 Rev 10 to Technical Requirements Manual (Trm), for Ginna Station ML17311A0701999-04-14014 April 1999 Rev 10 to AP-PRZR.1, Abnormal Pressurizer Pressure. ML17309A6521999-04-14014 April 1999 Rev 14 to AP-RCS.1, Reactor Coolant Leak. ML17309A6531999-04-13013 April 1999 Rev 1 to FIG-2.0, Figure Sdm. with 990413 Ltr ML17265A6111999-03-26026 March 1999 Rev 9 to Technical Requirements Manual for Ginna Station. 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[Table view] |
Text
Attachment AMakethefollowing changesintheTechnical Specification.
Removepage3.11-2Insertpage3.11-28401250293 840ii8PDR*DOCK05000244PPDR
~~3.11.23.11.33.11.4e.Charcoaladsorbers shallbeinstalled'n theventilation systemexhaustfromthespentfuelstoragepitareaandshallbeoperable.
Radiation levelsinthespentfuelstorageareashallbemonitored continuously.
tThetrolleyoftheauxiliary buildingcraneshallneverbestationed orpermitted topassoverstoragerackscontaining spentfuel.Thespentfuelpooltemperature shallbelimitedto150'F.Basis:Charcoaladsorbers willreducesignificantly theconsequences ofarefueling accidentwhichconsiders thecladfailureofasingleirradiated fuelassembly.
Therefore, charcoaladsorbers shouldbeemployedwheneverirradiated fuelisbeinghandled.Thisrequiresthattheventilation systemshouldbeoperating anddrawingairthroughtheadsorbers.
Thedesiredairflowpath,whenhandlingirradiated fuel,isfromtheoutsideofthebuildingintotheoperating floorarea,towardthespentfuelstoragepit,intotheareaexhaustducts,throughthe3~112Amendment No.21,P4,P5Proposed AppendixBInordertoremovetherestriction againstthehandlingofaspentfuelshippingcaskbytheauxiliary buildingcrane,theproposedmodification wouldsatisfytherequirements fordefiningthecranetobesinglefailureproofinaccordance withNUREG-0554.
According toNUREG-0612, beingabletomovealoadinasinglefailureproofmodeobviatestheneedtoanalyzethecaskdropaccident.
The40tonauxiliary buildingcranehasbeenreanalyzed foramaximumcriticalload(MCL)of30.5tonscharacterized asaspentfuel*shipping caskwitharedundant yoke.In=brief, therequiredmodification includesthefollowing:
1.Replacement ofthemainhoistgearbox.2.Replacement ofmainhoistdrumwithanewdrumwitha24"pitchdiameter.
Thisistoaccommodate thelargerropediameter(3/4")andallowareaonbothendsofthedrumforadiscbrakesystemandanoverspeed device.3.Providing amainhoistreevingsystemwithdualropesanda10:1safetyfactor.Thissystemincludesnewhoistrope,hookblock,headblockandequalizer bar.4.TheadditionofaYoungstown typepowerlimitswitchtobackuptheexistinggeartypecontrollimitswitch.Thisprovidesprotection againsttwoblockingforthemainhoist.5.Additionofanoverspeed devicetomonitordrumspeed.6.Theadditionofcircuitry topreventbridgeandtrolleytravelwhilethemainhoistisoperating.
Thisisforhang-upprotection.
7.Theadditionofstructure underthedrumtopreventitfromdroppingifthedrumshaftfails.8.Providing abrakingsystemapplieddirectlytothedrumwithanoverspeed switch...This preventslossofload.atthedrumifthedrumshaftoranypartofthehoistdrivefails.9..Addition ofoverloadsensingdevicetomotorcircuitstoprotecthoistingsystemfromoverloadonloadhangup.10.Additionofafloatingrailclamponthebridgeandtrolleyrailstoholdthemduringaseismicoccurrence.
- ll.Installathreephaselimitswitchthatintheeventofonelegofthethreephasepowersupplyde-energizing thebrakesystemwillbeengagedandallmovementoftheloadandhoistsystemwillstop.AnalysishasshownthatthemodifiedcranewillbeabletoholdtheMCIduringnormaloperation andduringtheoccurrence ofasafeshutdownearthquake.
Thefollowing testingwillbecompleted:
1.Materialtestinginaccordance withsection2.4,NUREG-0554.
2.Allweldjointswhosefailurecouldresultinthedropofacriticalloadwillbenondestructively examined(Section2.6).3.Apost-modification testprogramthatmeetsthegeneralrequirements ofSection8ofNUREG-0554.
Sincetheauxiliary buildingcranewillbesingle-failure proof,nosinglefailurecanresultinafuelcaskdrop.Therefore afuelcaskdropdoesnotneedtobeanalyzed.
Whiletheproposedmodification willsatisfytherequirements ofNUREG-0612 whilemovingloadsinthesinglefailureproofmode,itmaynot.bepossibletomoveallloadsatalltimesinthismanner.RG6Zwillcontinuetoanalyzeloadsthat,cannotbemovedinasinglefailureproofmodeonacasebycasebasistosatisfytherequirement ofNUREG-0612 bysomecombination ofloaddropanalysis, loadheightrestrictions andloadpath.
~\Attachment CInaccordance with10CFR50.91thischangetotheTechnical Specifications hasbeenevaluated againstthreecriteriatodetermine iftheoperation ofthefacilityinaccordance withtheproposedamendment would:l.involveasignificant increaseintheprobability orconsequences ofanaccidentpreviously
'evaluated; or2.createthepossibility ofanewordifferent kindofaccidentfromanyaccidentpreviously evaluated; or3.involveasignificant reduction inamarginofsafety.Asoutlinedbelow,Rochester Gas&Electricsubmitsthattheissuesassociated withthisamendment requestareoutsidethecriteriaof10CFR50.91,andtherefore, anosignificant hazardsfindingiswarranted.
ilAttachment Bdiscusses themodification tobemadetotheauxiliary buildingcrane.Theadditionoftheseredundant safetyfeatureswillpreventthelossofcontrolofaloadshouldthesinglefailureofanycranecomponent occur.Therefore anosignificant hazardsfindingiswarranted forthefollowing reasons:Theprobability ofaloaddropisdecreased.
2.Thepossibility ofacreated.different kindofaccidentisnot3.ThereisanincreaseinthemarginofsafetyforthemovementofanyloadequaltoorlessthantheMCI.
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