ML13234A385

08/19/2013 Calvert Cliffs Nuclear Power Plant NFPA 805 License Amendment Request Pre-Application Meeting with NRC Staff

ML13234A385
Person / Time
Site:	Calvert Cliffs
Issue date:	08/19/2013
From:	Calvert Cliffs, Constellation Energy Nuclear Group, EDF Group
To:	Office of Nuclear Reactor Regulation
Morgan N S
References
Download: ML13234A385 (19)

Text

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a joint venture of------__.

Constellation Energy' ..* Calvert Cliffs Nuclear Power Plant -., .... -'7-C-'.II, "'.-0-_

License Amendment Request" , ., . ' ,... ...: Pre-Application Meeting with NRC August 19, I ntrod CENG Representatives

-Elliott Flick Gen'l Manager, Fleet Engineering

-Dave Dellario Manager, Engineering Services -Jim McQuighan Project Manager, NFPA 805 -Paul Darby Principal Engineer, NFPA 805 -Pat Furio Principal Engineer, Licensing

-Jeff Stone Supervisor, PRA -Jim Landale Principal Engineer, PRA -Bret Colby Supervisor, Engineering

-Ch ris Dobry Principal Engineer, Engineering Project NFPA Consultants

-Mark Crompton EPM, NFPA 805 Project Manager CENG.. a )CIn 1-nure 01.______ -c-:

-=.wE "'" -2 Overview of CCN PP Current Fire Protection Licensing Basis NFPA 805 Transition Project Overview Compliance with NFPA 805 Probabilistic Risk Assessment Implementation Overview Summary /;...;7CENGI a joont ventum o f--___, -"!-'eor:-.r 3 Overview of Two PWRs, each rated @ 2737 MWth Combustion Engineering NSSS Commercial operations began in 1975/1977 Renewed Operating License issued -expires in 2034/2036

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.."<'"" -..... ...... -:*t -..f" eOF-.,. ..." 4 Current Fire Protection Licensing Fire Protection Program License Condition 10 CFR 50.48(a) and (b) Draft General Design Criterion 3 10 CFR 50, Appendix R Branch Technical Position APCSB 9.5-1, Appendix Current exemptions

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---NFPA 805 Transition Project License Amendment Request (LAR) committed submittal date -September 30, 2013 Using the Nuclear Energy Institute (NEI) LAR template Web portal will be established to support NRC review CENGI a joini venliml 0 1 ____ _ -,'\:.:" -..*..eDF.;.' --..&.w " 6 NFPA 805 Transi , tion Project Fire Protection Program Transition

-License Condition being revised -Technical Specifications being revised -Reviewed existing exemptions

-Three exemptions will be credited post-NFPA 805 transition

_ 19".:-" CENGI . -..... -".s-: .'.B ' ---7 Compliance with NFPA NFPA 805 Chapter 3 Compliance

-Review performed using NEI 04-02, Revision 2 guidance as supplemented by FAQ 07-0036 Review documented in B-1 Table (Attachment A of LAR) Results of review -3 Code compliance

-7 sections are addressed via Attachment L of -96 Sections/sub-sections -43 Comply with clarifications/EEEEs/required -16 Comply by previous NRC I " . .-CENG..

a joInI venture 01'____--, " -c""': . -.,y <1-.J ..*..eDf -8 Compliance with NFPA Non-Power Operations

-Review performed using NEI 04-02, Revision 2 guidance as supplemented by FAQ 07-0040 -Fire modeling not used to eliminate or reduce pinch points -Recovery actions are not credited -Results of review

• All success paths identified

• Pinch points identified

• Component list associated with maintaining Key Safety Functions

• Recommendations to manage Fire Risk CENGI -ajan t ventuteo!_ ---..' ....eDf -9

--Compliance with NFPA Radioactive Release -Review performed using NEI 04-02, Revision 2 guidance as supplemented by FAQ -Plant evaluated on a room by room -Credit engineering controls and CENG offsite calculation for gaseous and liquid effluents

-Reviewed Pre-Fire Plan and training materials to clarify monitoring and control requirements Minor Pre-Fire Plan/procedure changes and training program revisions in progress.

CENGIa join t ven t ure o f _ _. :-c:-* -., --EI-wY 4' -..;;.. -10 Compliance with Nuclear Safety Capability Assessment Review performed using NEI 04-02, Revision 2 guidance as supplemented by FAQ 08-0054 -Safe and Stable defined as Hot Standby -Common Enclosure review (Protection)

-Common Power Supply review (Coordination)

Fire Area review -Multiple Spurious Operations review -Effects of suppression activities Results of

• 21 Fire Areas to be transitioned deterministically

• 46 Fire Areas to be transitioned using Fire Risk Evaluations

• All VFDRs addressed I '* CENG.. a joht _01,--___ ('-., *Cn

• Enefn r 11 Compliance with NFPA Recovery Actions Feasibility Assessment

-Review performed using NEI 04-02, Revision 2 guidance as supplemented by FAQ 07-0030 -Primary Control Station (Other than main Control Room)

• Alternate Shutdown Panels 1(2)C43 -Recovery actions listed in LAR Attachment G -There was over 85% reduction in operator recovery actions --,;J#Z7-, _ CENG.

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__ Compliance with NFPA

• Monitoring Program -Following FAQ 10-0059, Revision 5 guidance NSCA and Fire PRA components

-If any new functions, will be added to Maintenance Rule Program Non-Power Operation components, radioactive release systems, Fire Protection program components

-To be included in normal system and program health monitoring Fire Protection systems and features -Low Safety Significant

-normal system/program health monitoring

-High Safety Significant

-NFPA 805 specific monitoring program that uses the Maintenance Rule program software CENG* a janl..,lUf1l at____<. ----.r. ....':.-. eoF 5 13 PRA Internal Events PRA -Fire PRA built on a quality Internal Events model -Full Internal Events peer review to RG 1.200, Revision 2 in 2010 Fire PRA -Fire PRA followed guidance in NUREG/CR 6850 as supplemented by -Full peer review to RG 1.200, Revision 2 in January -Total of 41 Facts & Observations

• 17 Findings

• 23 Suggestions

• 1 Best

-All F&Os subsequently

• No un-reviewed methods used --, -

__________, ,..,. -"'-'-..---'->. ...*4 eDF-...-J' 14 PRA Overall Plant Risk Post-NFPA 805 Transition

-Sufficient margin to account for non-quantified hazards Unit 1 .JL Unit 2 Comments CoF LERF CoF LERF Fire PRA quantification with NFPA 3.2E-OS 3.0E-06 3.6E-OS 4.2E-06 80S modifications credited.

Internal Events PRA quantification 1.3E-OS 1.3E-06 1.0E-OS with NFPA 80S modifications credited.

IPEEE for COF. Estimate for LERF 1.7E-06 1.SE-OS 2.0E-06 based on 13% of Tornad oes/H igh IPEEE for CoF. Estimate for 4.4E-06 S.7E-07 4.4E-06 S.7E-07based on 13% of CoF. Plant-Level Total 6.2E-OS 6.6E-06 6.SE-OS 8.1E-06 Overall risk meets Reg. Guide 1.174 guidance for total plant risk of CDF < 1E-4 / year and LERF < 1E-S / year. _....

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---PRA

• Risk improvement from NFPA 805 modifications Total delta risk for B.65E-6/ryr 6.39E-7/ryr B.B7E-6/ryr plant fire I nternal Events risk 1.74E-6/ryr 2.10E-B/ryr 2.26E-6/ryr 4.60E-B/ryr improvement from modifications Plant delta risk with 6.91E-6/ryr 6.1BE-7/ryr 6.61E-6/ryr B.62E-7/ryr plant modifications

-Total risk increases

<lE-S for CDF and <lE-6 for LERF -Delta risk meets criteria for RG 1.174 and NFPA 805 application --

CENG. a IC*l1 ..",ture 01-----, ....... -".*

.. -..* eOF--..r ......1"-'+*-" ':"-' 1 6 Implementation Modifications Planned -15 Fire PRA related modifications

-3 NFPA Code compliance modifications Process/Procedure Changes -Fire Brigade response -Design change process -Training -Operations alarm procedures, Fire Fighting Strategy Manual, hot work, lower mode (refueling outage), AOPs/recovery actions, etc.

CENGI ::--....... --.... -c;---.;..; -".,1 " 17 RCP Loss of Seal Cooling alarm and local 13 kV trip of RCPs Electrical modifications: (hot short, grounds, -Reactor vessel head and Pressurizer -Main Steam Isolation Valve -Steam Generator blowdown control -Normal sump motor operated -Hydrogen purge -Component cooling water heat exchanger flow control -Pressurizer Power Operated Relief Auxiliary Feedwater steam admission -Reactor Coolant Pump breaker 4kV breaker -Cable Spreading Room Cable replacement and lighting transformer protection CENGI -WI'"' _.eo " L

..:.-' 18 Complete LAR to be submitted on or before September 30, 2013 No un-reviewed methods or deviations from approved Fire PRA methods Modifications will be required and are being Transition Schedule -Assumes 2 year NRC review -Consistent with other submittals

-Implement procedure/process changes 6 months after SER -Completion of modifications for both units following SER approval-April 2018 CENG-, .-

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