1 CMBG 2009 Copyright 2009 Institute of Nuclear Power Operations Configuration Management...
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1 CMBG 2009 Copyright 2009 Institute of Nuclear Power Operations Copyright 2009 Institute of Nuclear Power Operations Configuration Management Activities, Including Margin Management David Hembree INPO June 30, 2009
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Transcript of 1 CMBG 2009 Copyright 2009 Institute of Nuclear Power Operations Configuration Management...
1
CMBG2009
Copyright 2009 Institute of Nuclear Power OperationsCopyright 2009 Institute of Nuclear Power Operations
Configuration Management Activities, Including Margin
Management
David HembreeINPO
June 30, 2009
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CMBG2009
Copyright 2009 Institute of Nuclear Power Operations
INPO CM Focus Areas
• Plant-specific issuesIncluding issues with product quality (e.g., design changes, technical evaluations), configuration control, reactor engineering, and engineering leadership. Causes often involve engineering fundamentals.
• Industry issues–Margin management
–Nuclear fuel performance (including channel distortion)
–Transformer/switchyard/grid issues
–Gas accumulation
–Digital modifications (under development)
–Cable condition (under development)
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CMBG2009
Copyright 2009 Institute of Nuclear Power Operations
Margin Management
• Ongoing department focus area– Fundamental to plant safety– Key cause of long-term shutdowns– Average of five AFIs per year – Some are executive summary issues
• 2008/9 activities– Exelon procedure posted as Nuclear Exchange– Good practice published in early 2009
discusses elements of comprehensive processFeedback/suggestions for future action??
Deborah Williams
Mayo Oppenhimer
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CMBG2009
Copyright 2009 Institute of Nuclear Power Operations
Margin Management• Extensive efforts at some plants to
reconstitute design basis, upgradecalculations, and quantify/improvemargins– Kewaunee – Point Beach– Others
– Other Margin Efforts– Byron -- Operations questions engineers on
amount of margin when making operability decisions
Deborah Williams
Mayo Oppenhimer
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CMBG2009
Copyright 2009 Institute of Nuclear Power Operations
Margin Management
• Signs of decline in focus on marginmanagement at many plants• Procedure in place, but little ongoing
action to implement• Action plans established but plans lack
interim dates and are not closely tracked• Margin lists only updated once every
two years (just before INPO comes)• Engineers identify design margin issues, but operations
and maintenance not engaged to identify operating margin concerns
Deborah Williams
Mayo Oppenhimer
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CMBG2009
Copyright 2009 Institute of Nuclear Power Operations
Engineering Fundamentals
• Engineering management effectiveness– Exec summary issue for several evaluations
• Fundamentals at individual level– Knowledge/skill– Knowledge worker human performance – Advocacy and technical conscience
Carl Faller
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CMBG2009
Copyright 2009 Institute of Nuclear Power Operations
Nuclear Fuel Integrity• Industry goal of zero failures by 2010• Review visits to all sites• Evaluation team review/follow-up• Fuel vendor assist visits• Currently, about 88 percent w/o failures • Greatest challenges:
– Grid-to-rod fretting (particularly at B&W and CE NSSS plants)
– Debris-related failures– “Surprise” failures
Scott Hawn
Bob Burnham
Jim Doxsey
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CMBG2009
Copyright 2009 Institute of Nuclear Power Operations
Transformer/Switchyard/Grid
• Continuing concern as event initiator; affects reliability of offsite power
• Evaluation activities
• Review visits completed at all sites
• Several follow-up visits in 2009
• Evaluation teams looking at switchyard PMs and transformer lifecycle management
• Guideline recently issued; plan to request utility self-assessment
• Engaging CEOs and CNOs to help improve nuclear/transmission alignment
Shawn Simon
Wes Frewin
Julio Gomez
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CMBG2009
Copyright 2009 Institute of Nuclear Power Operations
Gas Intrusion
• Ongoing events affecting importantsystems
• SER 2-05 revised in early 2008; NRC generic letter issued
• Supporting industry efforts to address issues– working with industry to develop training materials
• Evaluation teams looking into gas intrusion situations and site corrective actions
Carl Faller
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CMBG2009
Copyright 2009 Institute of Nuclear Power Operations
Other Activities
• Engineering project management; vendor oversight
• Developing new engineers
• Digital issues and cyber security
• Cable monitoring
Julio Gomez
Doug Kinsman
Mayo Oppenhimer
WesFrewin
DeborahWilliams
David Shen
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CMBG2009
Copyright 2009 Institute of Nuclear Power Operations
Meetings and Seminars
• Technical working meetings• Transformer/switchyard/grid (May 19-20)• Engineering human performance (at Palo Verde-July 21-23)• Engineering as technical conscience (at Exelon-July 27-29)
• Digital upgrade (at Southern Nuclear-Sept 9-10) • PWR/BWR Reactor engineering (Dec 8-10)
• General working meetings• Engineering Managers forum (at FP&L-March 2-3)• Design engineering managers (June 2-3)• System engineering managers (June 3-4)• Program engineering managers (Aug 5-6)
• Training/development• New engineering manager seminar (June 9-11)• New engineering directors seminar (Sept 22-24)
http://www.inpo.org/engineering/OnlineRegForm/onlineforms.asp
