ML15244B383

8/26/2015, Meeting Slide Regarding WBN Dual Unit Fire Protection Report Page Revision Review

ML15244B383
Person / Time
Site:	Watts Bar
Issue date:	08/26/2015
From:	Tennessee Valley Authority
To:	Watts Bar Special Projects Branch
Dion J
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ML15244B388	List: ML15244B371 ML15244B377 ML15244B383
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Download: ML15244B383 (19)

Text

WBN Dual Unit Fire Protection Report Page Revision Review TVA-NRC Public Meeting - August 26, 2015

Introduction

• Fire Protection Recovery Project:

• Background and Context

• Analysis and Products

• As-Constructed Fire Protection Report - June 24, 2015

• Regulatory Engagement:

• NRR FPR review ongoing

• Region II Triennial and Operational Readiness inspections ongoing

• Brief Structure:

• Overview of TVA-NRC audit discussions by category

• TVA intended change with view of changed FPR pages l 2 WBN Dual Unit Fire Protection Report

Manual Actions

• Feasibility and Reliability (F & R)-

• Acceptance criteria relative to Actions Required and Important to Fire Safe Shutdown (FSSD)

• Related feasibility and reliability evaluations

• Environmental factors

• Managing Unit 1 OMAs-

• Evaluation of new U1 OMAs

• F&R of existing U1 OMAs l 3 WBN Dual Unit Fire Protection Report TVANRCDiscussions:

Manual Actions

• Main Control Room Abandonment

• Action acceptance criteria for both Units

• Appendix R, III.L performance goal evaluation

• Cold Shutdown Repair Procedures

• Emergency lighting after 8 hours9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br /> l 4 WBN Dual Unit Fire Protection Report TVANRCDiscussions:

Manual Actions l 5 WBN Dual Unit Fire Protection Report WBNDUFPRPageRevisions:

Discussion Item TVAchangeintention AffectedPages OMArequiredvs.important FSSDF&R criteria ClarifiedFSSDF&Rcriteria for requiredandimportantFSSD OMAs PartV(full revision): 47 AFW flowOMAF&R evaluation Updatedwordingtoreflect calc updateandrequiredvs.

importantactionaspects PartVII:268 270 U2VCTroomactiontime Actionperformancetravel timecorrected PartV (full revision):4 Part VII:306 New andexistingU1 OMA evaluations Clarifiedcriteria and managementofnewU1OMAs PartV(full revision):2

Manual Actions, cont.

l 6 WBN Dual Unit Fire Protection Report WBNDUFPRPageRevisions:

Discussion Item TVAchangeintention AffectedPages MCRabandonment action acceptancecriteria ClarifiedMCRabandonment actioncriteria PartV(full revision):6 Environmental factors ClarifiedF&Racceptance criteriawith environmental factordiscussion PartV(full revision):67 MCRabandonmentactions evaluations Providedupdatedengineering evaluationswithdefensein depthinmeetinggoals PartV(full revision):1116 Coldshutdownrepair documentation Providedadditionaldetail PartV(full revision):16 PartII:8

Manual Actions, cont.

l 7 WBN Dual Unit Fire Protection Report WBNDUFPRPageRevisions:

Discussion Item TVAchangeintention AffectedPages Emergency lightingfor manualactionsafter8hours Clarifieduseofinstalledand portableemergency lights PartV(full revision): 18

Specific Technical Topics

• Safety Injection (SI)-

• Definition of spurious versus inadvertent

• Deviation Evaluations-

• Appendix R

• BTP 9.5-1, Appendix A

• Fire Detection Monitoring Panel upgrade-

• Modification chosen design code

• Conformance with appropriate industry standards and testing

• Fire Brigade member responsibilities-

• Other essential functions l 8 WBN Dual Unit Fire Protection Report TVANRCDiscussions:

Specific Technical Topics, cont.

• Reactor Building Equipment Hatch room-

• Surveillance frequency relaxation

• Applicability of alternate compensatory actions

• Mechanical Pipe Penetration Seals-

• F and T rating

• Steam Generator (SG) Power Operated Relief Valve (PORV) OMA-

• Allowed time revision

• F&R evaluation l 9 WBN Dual Unit Fire Protection Report TVANRCDiscussions:

Specific Technical Topics l 10 WBN Dual Unit Fire Protection Report WBNDUFPRPageRevisions:

Discussion Item TVAchangeintention AffectedPages Definingspuriousvs.

inadvertentSI Providedclarification for termsusedinFPR PartIII:56 PartIV:2 Appendix Rdeviation justifications(combustible loading,equipmentlocation)

Clarified deviation justificationswithadditional detail PartVII:7,8 FireDetectionMonitoring Paneldesigncodeand standards U1: SubmittedLicenseCond.

U2:SubmittingLicenseCond.

UpdateNFPAcodealternative U1:LAR U2:Submittal PartX:53,55 OtherFireBrigade member responsibilities Also medicalresponders, fire brigadewillinitially stabilize injuredandthenfirefight PartII:25

Specific Technical Topics, cont.

l 11 WBN Dual Unit Fire Protection Report WBNDUFPRPageRevisions:

Discussion Item TVAchange intention AffectedPages RB hatchroomsurveillance frequencyandcompactions Provided moredetailed justification PartII:100 PartVI:632,1301 PartVII:137138 Pipepenetrationseal FandT rating Providedmoredetailed technical basis PartII:4445 BTPDeviation for1.5hour dampersin3 hourfire barriers Deviationjustification documentedfollowing FPRengineering validation and CorrectiveAction Programevaluation Part I:11,19,20,22 Part VI:357358,935 937,968969,1135 Part VII:135,136 PartVIII: 23,62,67 PartX:5

Specific Technical Topics, cont.

l 12 WBN Dual Unit Fire Protection Report WBNDUFPRPageRevisions:

Discussion Item TVAchangeintention AffectedPages SGPORVOMAcalculated allowedtimerevision; F&R evaluation Leverageincreased calc marginforOMAafter firefightingeffects;provide firefightingeffortsimpacts defenseindepthoptions PartVI:504,508, 515,519,526,530, 537,541,548,552, 683,684,690,691, 697,698,704,705, 711,712 PartVII:203207, 218222,230235, 241246,297298, 303304

FPR Consistency

• Intra-document consistency-

• Appendix R deviation component list shorter in evaluation

• Cold Shutdown Repairs-

• Required rooms table inconsistent with source section

• Consistency with calculation

• Actions common to all fires and function performed wording one revision behind

• Note table truncated

• Primary RCS depressurization strategy update l 13 WBN Dual Unit Fire Protection Report TVANRCDiscussions:

FPR Consistency l 14 WBN Dual Unit Fire Protection Report WBNDUFPRPageRevisions:

Discussion Item TVAchangeintention AffectedPages Fourthcomponentmissing inAppendixRdeviation evaluation Consistentlylistfour components indeviation componentlistandevaluation PartVII: 26,52, 76 ColdShutdown repairs requiredroomsmissingin TableI1 Restoreconsistencywithin document PartI:Table I1, 625 Table61 revision consistency Tableupdated tocurrentFPR andcalc revision;consistency validated PartVI: Table6 1,13831386

Wording Clarifications

• Referencing prior or future NRC reviews in evaluations and justifications

• Preferred wording

• Unit applicability reference errors

• Clerical or redundant wording errors l 15 WBN Dual Unit Fire Protection Report TVANRCDiscussions:

Wording Clarifications l 16 WBN Dual Unit Fire Protection Report WBNDUFPRPageRevisions:

Discussion Item TVAchangeintention AffectedPages Referencing priororfuture NRCreviews RemovedpriorNRCreview references PartI:4 PartII:4 PartVII: 133 Preferredormoreaccurate wording Updatedwordingwithno changeinintent PartII:96 Clericalorredundant,non substantiveeditorialserrors Corrected errorswithno changeinintent PartVII:6,112, 113 PartVII:9 PartIX:6,18

Wording Clarifications, cont.

l 17 WBN Dual Unit Fire Protection Report WBNDUFPRPageRevisions:

Discussion Item TVAchangeintention AffectedPages Unitapplicability,non substantiveeditorial referenceerrors Verifiedandcorrected unit applicabilityerrorswithno changeinintent PartVII: 128 PartVIII:60

Way Ahead

• Updated FPR Pages Submittal:

• Provides docketed submittal of viewed FPR change pages

• Submittal includes Unit 2 Fire Detection Monitoring Panel License Condition

• Anticipate submittal this week

• Regulatory Engagement:

• Continue to support NRR audit and FPR review toward SSER

• Anticipate Region II Triennial and Operational Readiness inspections into September

• Above supports ongoing Unit 2 Operating License technical and readiness review efforts l 18 WBN Dual Unit Fire Protection Report

WBN Dual Unit Fire Protection Report l 19 Header Use appropriate bullet lay-out Questions?