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 WBN Dual Unit Fire Protection Report l 2

Manual Actions TVANRC Discussions:

• 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 WBN Dual Unit Fire Protection Report l 3

Manual Actions TVANRC Discussions:

• 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 /> WBN Dual Unit Fire Protection Report l 4

Manual Actions WBN DUFPR Page Revisions:

Discussion Item TVA change intention Affected Pages OMA required vs. important Clarified FSSD F&R criteria for Part V (full FSSD F&R criteria required and important FSSD revision): 47 OMAs AFW flow OMA F&R Updated wording to reflect Part VII: 268 evaluation calc update and required vs. 270 important action aspects U2 VCT room action time Action performance travel Part V (full time corrected revision): 4 Part VII: 306 New and existing U1 OMA Clarified criteria and Part V (full evaluations management of new U1 OMAs revision): 2 WBN Dual Unit Fire Protection Report l 5

Manual Actions, cont.

WBN DUFPR Page Revisions:

Discussion Item TVA change intention Affected Pages MCR abandonment action Clarified MCR abandonment Part V (full acceptance criteria action criteria revision): 6 Environmental factors Clarified F&R acceptance Part V (full criteria with environmental revision): 67 factor discussion MCR abandonment actions Provided updated engineering Part V (full evaluations evaluations with defense in revision): 1116 depth in meeting goals Cold shutdown repair Provided additional detail Part V (full documentation revision): 16 Part II: 8 WBN Dual Unit Fire Protection Report l 6

WBN DUFPR Page Revisions:

Manual Actions, cont.

Discussion Item TVA change intention Affected Pages Emergency lighting for Clarified use of installed and Part V (full manual actions after 8 hours9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br /> portable emergency lights revision): 18 WBN Dual Unit Fire Protection Report l 7

Specific Technical Topics TVANRC Discussions:

• 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 WBN Dual Unit Fire Protection Report l 8

Specific Technical Topics, cont.

TVANRC Discussions:

• 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 WBN Dual Unit Fire Protection Report l 9

Specific Technical Topics WBN DUFPR Page Revisions:

Discussion Item TVA change intention Affected Pages Defining spurious vs. Provided clarification for Part III: 56 inadvertent SI terms used in FPR Part IV: 2 Appendix R deviation Clarified deviation Part VII: 7, 8 justifications (combustible justifications with additional loading, equipment location) detail Fire Detection Monitoring U1: Submitted License Cond. U1: LAR Panel design code and U2: Submitting License Cond. U2: Submittal standards Update NFPA code alternative Part X: 53, 55 Other Fire Brigade member Also medical responders, fire Part II: 25 responsibilities brigade will initially stabilize injured and then firefight WBN Dual Unit Fire Protection Report l 10

Specific Technical Topics, cont.

WBN DUFPR Page Revisions:

TVA change Discussion Item Affected Pages intention RB hatch room surveillance Provided more detailed Part II: 100 frequency and comp actions justification Part VI: 632, 1301 Part VII: 137138 Pipe penetration seal F and T Provided more detailed Part II: 4445 rating technical basis BTP Deviation for 1.5 hour5.787037e-5 days <br />0.00139 hours <br />8.267196e-6 weeks <br />1.9025e-6 months <br /> Deviation justification Part I: 11, 19, 20, 22 dampers in 3 hour3.472222e-5 days <br />8.333333e-4 hours <br />4.960317e-6 weeks <br />1.1415e-6 months <br /> fire documented following Part VI: 357358, 935 barriers FPR engineering 937, 968969, 1135 validation and Part VII: 135, 136 Corrective Action Part VIII: 23, 62, 67 Program evaluation Part X: 5 WBN Dual Unit Fire Protection Report l 11

WBN DUFPR Page Revisions:

Specific Technical Topics, cont.

Discussion Item TVA change intention Affected Pages SG PORV OMA calculated Leverage increased calc Part VI: 504, 508, allowed time revision; F&R margin for OMA after 515, 519, 526, 530, evaluation firefighting effects; provide 537, 541, 548, 552, firefighting efforts impacts 683, 684, 690, 691, defense in depth options 697, 698, 704, 705, 711, 712 Part VII: 203207, 218222, 230235, 241246, 297298, 303304 WBN Dual Unit Fire Protection Report l 12

FPR Consistency TVANRC Discussions:

• 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 WBN Dual Unit Fire Protection Report l 13

WBN DUFPR Page Revisions:

FPR Consistency Discussion Item TVA change intention Affected Pages Fourth component missing Consistently list four Part VII: 26, 52, in Appendix R deviation components in deviation 76 evaluation component list and evaluation Cold Shutdown repairs Restore consistency within Part I: Table I1, required rooms missing in document 625 Table I1 Table 61 revision Table updated to current FPR Part VI: Table 6 consistency and calc revision; consistency 1, 13831386 validated WBN Dual Unit Fire Protection Report l 14

Wording Clarifications TVANRC Discussions:

• Referencing prior or future NRC reviews in evaluations and justifications

• Preferred wording

• Unit applicability reference errors

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

WBN DUFPR Page Revisions:

Wording Clarifications Discussion Item TVA change intention Affected Pages Referencing prior or future Removed prior NRC review Part I: 4 NRC reviews references Part II: 4 Part VII: 133 Preferred or more accurate Updated wording with no Part II: 96 wording change in intent Clerical or redundant, non Corrected errors with no Part VII: 6, 112, substantive editorials errors change in intent 113 Part VII: 9 Part IX: 6, 18 WBN Dual Unit Fire Protection Report l 16

WBN DUFPR Page Revisions:

Wording Clarifications, cont.

Discussion Item TVA change intention Affected Pages Unit applicability, non Verified and corrected unit Part VII: 128 substantive editorial applicability errors with no Part VIII: 60 reference errors change in intent WBN Dual Unit Fire Protection Report l 17

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 WBN Dual Unit Fire Protection Report l 18

Questions?

Header

• Use appropriate bullet lay-out WBN Dual Unit Fire Protection Report l 19