ML12152A145

20120531 Bnp NRC Pre-LAR Application Meeting Final

ML12152A145
Person / Time
Site:	Brunswick
Issue date:	05/31/2012
From:	Ertman J Progress Energy Co, NGG Holdings
To:	Farideh Saba Plant Licensing Branch II
References
Download: ML12152A145 (25)

Text

Brunswick Nuclear Plant Units 1 and 2 NFPA 805 Pre-LAR Application Meeting May 31, 2012 Jeff Ertman - NFPA 805 Project Manager

Agenda Transition Project Overview License Amendment Request Overview Fire PRA Overview 2

Acronyms O FPRA - Fire Probabilistic Risk Assessment O FP - Fire Protection O FSA - Fire Safety Analysis O DID - Defense in Depth O NSCA - Nuclear Capability Safety Assessment O SSA - Safe Shutdown Analysis O FRE Fire Risk Evaluation O FRE - Fire Risk Evaluation O RA - Recovery Action O HRA - Human Reliability Analysis O CPT - Control Power Transformer O VFDR - Variance From Deterministic Requirements O NPO - Non-Power Operations O EPU - Extended Power Uprate O F&O - Findings and Observations O MSO - Multiple Spurious Operations 3

Presenters Z Jeff Ertman - NGG, Fleet FP Supervisor, 805 PM Z Alan Holder - NGG, Fleet Fire Protection Lead Z Ed Wiegert - NGG, Fleet Fire PRA Lead Z Kelly Lavin - NGG, NFPA 805, LAR Development Z Lee Grzeck - BNP, Supervisor of Licensing Z John Becker - BNP, Supervisor Engineering Programs On the Phone for PE:

Z Leunis van Eeten - BNP, Project Tech Lead Z Robert Smith - NGG, Project Team Z Chris Browne - NGG, Project Team 4

Transition Project Overview Project Milestones Project Status 5

NFPA 805 Project Milestones Milestone Plant HNP BNP RNP CR3 SSA Validation Calculation Complete Complete June 2012 Complete FPRA Inputs Ready Complete Complete Aug 2012 Complete FPRA Peer Review Complete Complete Dec 2012 Complete EPU d O h I

N/A N/A N/A 4Q 2013 6

EPU and Other Impacts N/A N/A N/A 4Q 2013 NFPA 805 LAR Submittal Complete Sept 2012 Sept 2013 July 2014 Forecast LAR RAIs Complete 3Q 2013 3Q 2014 1Q 2015 Forecast SE from NRC Complete 1Q 2014 1Q 2015 4Q 2015 FP Program Implementation Complete 3Q 2014 3Q 2015 2Q 2016 Target Project Closeout 2Q 2013 3Q 2015 4Q 2015 4Q 2016

Brunswick Project Status Final Stage of PRA Development 3/4 Revision of Quantification Calculation in Progress 3/4 Application Calculation in Progress (VFDR Evaluations)

FSAs In Progress 3/4 FREs 3/4 FREs 3/4 RA Decisions 3/4 DID Decisions 3/4 Required Fire Protection Systems LAR Development 3/4 Early Stages 3/4 Site Review Scheduled to Start in July 7

License Amendment Request Overview Classical Fire Protection NFPA 805 Monitoring NSCA Modifications Treatment of Generic Issues LAR Document 8

Classical Fire Protection NFPA 805 Chapter 3 (B-1 Table) 3/4 Revision of NFPA Code Compliance Calculations in Progress 3/4 Three Potential Modifications Radiation Release During Fire Brigade

Response

3/4 Preliminary Review at BNP in Late 2007 3/4 Updating to Current LAR Template 3/4 Incorporating Non-Pilot LAR Feedback 9

NFPA 805 Monitoring Same Base Program as Harris Makes Use of existing NGG Fleet Procedure BNP Submittal Updated With NEI 04-02, FAQ 10-0059 10

NSCA - at Power SSA Fire Area Analysis Complete VFDRs Identified 3/4 Additions Due to Exemption Elimination Recovery Action Strategy 11 3/4 Minimize III.G.3 RA Transition 3/4 DID Review In Process 3/4 Minimize Pre-Emptive Actions MSO Expert Panel 3/4 Used NEI 00-01 Rev 3 MSO List

NSCA - Non Power Operations (NPO)

Same Process as Harris BNP Area Analysis Prepared S

f S 12 Site Review of Strategies in Progress

Modifications Potential Modifications Identified Final Scope After Fire PRA and FSAs Completed 3/4 Plant Review 13

Treatment of Generic Issues (RAIs)

Monitoring Program Defense-in-Depth Safety Margin Treatment of FPRA Un-Reviewed Analysis Methods 14 Analysis Methods Use of EPRI Process for Surveillance Optimization FPRA Sensitivity Study on CPT Factor 2

LAR Document Submittal Using Current Industry LAR Template 3/4 NEI Incorporating Generic RAIs Incorporating Known Lessons Learned 3/4 2011 NFPA 805 S b itt l 3/4 2011 NFPA 805 Submittals 3/4 Current Generic RAIs 15

Fire PRA Overview BNP Overview Important Fire Areas and Scenarios Peer Review Current Status 16

Fire PRA Overview Methods Similar to Harris Application 3/4 NUREG-6850 3/4 Used Accepted Alternatives (eg. FAQ 08-0046) 3/4 RG 1.200 Peer Review Process Other Methods 3/4 The BNP FPRA Uses:

9 A Severity Factor of 0.1, Where 90% of the Fires are Contained Within the MCC 9

HRR Severity Factors are Treated Independently, Similar to Other Cabinets 3/4 Method was Used to Address RAI 5-32 for the HNP NFPA-805 Application 17

Fire PRA Overview Significant Efforts 3/4 Bus Ducts and Below-Ground Cable Ducts 3/4 Electrical Coordination PRA Components 3/4 Walkdowns and Related Documentation No Credit Taken for Flame Retardant 3/4 Installed on Thermoset Cable 3/4 Cable Spread Room (CSR) 3/4 Diesel Generator Building Basement 18

Fire PRA Overview Incipient Detection 3/4 Main Control Boards - Credit per FAQ 08-0046 3/4 CSR Area Wide - Normal Detection Credit Crediting Existing Solid Bottom Trays to Delay Damage 3/4 Per NUREG/CR-6850 19

Important Areas and Scenarios Cable Spread Room Control Room Abandonment 3/4 Detailed HRA Control Room Turbine Building Battery Rooms Switchgear Rooms 20

Fire PRA Peer Review Peer Review Overview 3/4 Peer Review Performed December 2011 9

53 Findings 9

50 Suggestions 3/4 Performed by Boiling Water Reactor 3/4 Performed by Boiling Water Reactor Owners Group per NEI 07-12 Process 3/4 Revised to Incorporate Findings, Resulted in Decrease in Core Damage Frequency 21

Fire PRA Peer Review Resolved 40 Findings Revised Calculations for F&O Resolution R

Q tifi d f C

D F

Re-Quantified for Core Damage Frequency (CDF) and Large Early Release Frequency (LERF) 22

Fire PRA Status Fire CDF Decreased Over 50%

One Modification Credited 3/4 Crediting Incipient Detection in Main Control Room Cabinets (Per FAQ Guidance)

Guidance)

Additional Fire Modeling 3/4 Diesel Generator Building Basement 3/4 Main Control Room 3/4 Cable Spread Room 23

Closing NFPA 805 Fire PRA Application Calculation in Progress FSAs In Progress LAR Submittal by Sept 30, 2012 24

Questions

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25