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A Brief History of CM in the Nuclear Industry and the CMBG. Presented By: Sam Melton CMBG Steering Committee June 2, 2008 Shell Beach, California. A Brief History of CM in the Nuclear Industry. - PowerPoint PPT Presentation
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A Brief History of CM in A Brief History of CM in the Nuclear Industry the Nuclear Industry and the CMBGand the CMBG
A Brief History of CM in A Brief History of CM in the Nuclear Industry the Nuclear Industry and the CMBGand the CMBG
Presented By:
Sam MeltonCMBG Steering Committee
June 2, 2008Shell Beach, California
PAGE 2 PRESENTATION TITLE
A Brief History of CM in the Nuclear Industry
Configuration Management in military and aerospace industry geared towards product conformance to facilitate interchangeability of parts while still satisfying the overall design requirements
MIL-STD-973 (1992), ”Configuration Management” (later replaced by ANSI/EIA-649-1998)
PAGE 3 PRESENTATION TITLE
A Brief History of CM in the Nuclear Industry
DOE STD 1073-93 “Configuration Management”
Applicable to DOE nuclear facilities in the operational phase.
DOE-STD-1073 was updated in 2003
PAGE 4 PRESENTATION TITLE
A Brief History of CM in the Nuclear Industry
Nuclear plants in mid 60’s to early 80’s typically designed by AEs under contract
Final design documents typically turned over to the utility at the end of construction
Little knowledge transfer of design info to utility engineering organization
Utilities struggled to deal with long term design maintenance and related document upkeep
PAGE 5 PRESENTATION TITLE
A Brief History of CM in the Nuclear Industry
Early indicators that the nuclear plant design basis knowledge was becoming disconnected from the physical plant
IE Bulletin 79-14 uncovered • calculation discrepancies• undocumented modifications • document discrepancies • as-built problems
PAGE 6 PRESENTATION TITLE
A Brief History of CM in the Nuclear Industry
Salem ATWS event (1983)
Generic implications identified in NUREG-1000 and NRC Generic Letter 83-28
• compliance with vendor recommendations• part and procurement issues• vendor manual controls
Industry initiatives by INPO, NUMARC and EPRI to provide guidance and consistency
PAGE 7 PRESENTATION TITLE
A Brief History of CM in the Nuclear Industry
Davis Besse Loss of Feedwater event (1985)
Led to NRC Safety System Functional Inspections (SSFIs) and NUREG-1154
• difficulties maintaining operational readiness of safety systems
• lack of understanding design bases
Voluntary design basis reconstitution, DBDs and self-evaluation
NUREG-1397, NUMARC 90-012, INPO 87-006 and NUREG/CR-5147
PAGE 8 PRESENTATION TITLE
A Brief History of CM in the Nuclear Industry
Browns Ferry (1985)
Browns Ferry fire in Unit 1 (1975) led to changes in NRC standards for Fire Protection
All three Browns Ferry units shut down voluntarily in March 1985 due to CM related problems - containment isolation testing (Unit 1), reactor water level instrumentation (Unit 2)
Unit 1 restarted in May 2007
PAGE 9 PRESENTATION TITLE
A Brief History of CM in the Nuclear Industry
NRC specialized SSFIs for safety systems• Electrical Systems (EDSFI) • Service Water Systems (SWOPI)
SECY-92-193: intent to issue generic letter to require utilities to address how they were dealing with the problems - withdrawn
PAGE 10 PRESENTATION TITLE
A Brief History of CM in the Nuclear Industry
Nuclear Information and Records Management Association (NIRMA) CM Committee developed solution
• control of technical information by engineering and operations personnel
• mature records management and document control process
PP02-1994 “Position Paper on Configuration Management Program”
PAGE 11 PRESENTATION TITLE
A Brief History of CM in the Nuclear Industry
First Nuclear CM benchmarking conference hosted by PPL in Fall 1994
17 US utilities represented• Each utility made presentation
about their CM program• No motivational speeches• No sales promotions by service providers
PAGE 12 PRESENTATION TITLE
The CMBG Idea Grows
Second conference hosted byOntario Hydro in 1995
Drafted plans for continuing organization - approved in 1996
Adopted name: Configuration Management Benchmarking Group
Formed Steering Committee
Wrote Mission Statement “…forum for peer-level information sharing…”
Defined ground rules for holding future conferences
PAGE 13 PRESENTATION TITLE
CMBG is not affiliated with any other single organization
Independent of regulatory and oversight agencies
Conference costs are paid by registration fees and supplemented by host utility
Host utility pays for web site
Activities limited to information exchange
PAGE 14 PRESENTATION TITLE
CMBG accomplishments
Annual Conferences
Participation in development of industry documents
Web Site (www.cmbg.org)• CMBG history• Conferences (future conferences and proceedings
from previous conferences)• Steering Committee• IAEA Activities• CM Links• Papers and publications• Contact Database
PAGE 15 PRESENTATION TITLE
CMBG Conferences
Year Host Location
1994 PP&L Poconos, PA
1995 Ontario Hydro Ontario, Canada
1996 Houston Lighting & Power Galveston, TX
1997 Commonwealth Edison Chicago, IL
1998 NAESCO Boston, MA
1999 Duke Power Charlotte, NC
2000 Consolidated Edison Tarrytown, NY
2001 Progress Energy Raleigh, NC
2002 PSEG Nuclear Atlantic City, NJ
2003 PPL Susquehanna Hershey, PA
2004 Wolf Creek Nuclear Kansas City, KS
2005 First Energy Cleveland, OH
2006 Dominion Richmond, VA
2007 SCE&G Charleston, SC
2008 Pacific Gas and Electric Shell Beach, CA
PAGE 16 PRESENTATION TITLE
A Brief History of CM in the Nuclear Industry
NIRMA TG19-1996
“ Configuration Management of Nuclear Facilities”
Built on the NIRMA PP-02 document
Presented elements and attributes that facilities needed to establish of a good CM program.
Later became basis for ANSI/NIRMA CM-1.0-2000
Criteria• Program management • Design requirements • Information Control • Change control• Assessment• Training
PAGE 17 PRESENTATION TITLE
A Brief History of CM in the Nuclear Industry
Millstone Spent Fuel Pool Cooling (1996)
NRC had lost confidence in utility’s ability to know and maintain its design basis and to implement design and licensing requirements
10CFR50.54(f) letter in October 1996 to all licensees that required a response on how design basis information was controlled and maintained.
More far-reaching implications than letter that NRC was persuaded not to issue in 1993
PAGE 18 PRESENTATION TITLE
A Brief History of CM in the Nuclear Industry
Millstone Spent Fuel Pool Cooling (1996)
10CFR50.54(f) letter helped to solidify CMBG as a viable resource for the industry and demonstrated how the CMBG "network" could be used to find and distribute valuable CM information between utilities, including good practices and lessons learned
PAGE 19 PRESENTATION TITLE
A Brief History of CM in the Nuclear Industry
DC Cook Design issues (1997)
Extended shutdown due to inability to respond to design basis event and other configuration issues
Contributed to INPO decision to modify the evaluation performance objectives and criteria to include configuration management and to the formation of a new CM evaluation department.
PAGE 20 PRESENTATION TITLE
A Brief History of CM in the Nuclear Industry
INPO AP-929 (1998)
“Configuration Control Process Description”
Focused on changes to plant configuration
Configuration Control
Obtain licensing approvalof proposed change
Prepare safety, licensing,and design basis
documents
Design Basis Change
Configuration changed
Prepare designrequirement change
9
Implement configurationchange
Does changerequire altering approved
design?
Accept changedconfiguration
Business Need:Change Configuration
Configuration Change
Does changerequire altering hardware
or approved design ?
Define the configurationchange needed
Does need meetdefinition of configuration
change?
12
10
112
5
1
3
8
Change does not alterconfiguration
Design Change
Yes
No
No
Yes
Yes
No
No
Yes
Does changerequire altering design
basis?
7
Prepare nondesignoperational configuration
change
4
Prepare hardwareequivalency changes
6
PAGE 21 PRESENTATION TITLE
CMBG Contributions to Industry CM Guidance Documents
ANS/NIRMA CM-1.0 -2000 “ Configuration Management of Nuclear Facilities” Based on NIRMA TG-19 CMBG members participated in development, review
and issuance. Drafts reviewed at CMBG conferences
Criteria• Program management • Design requirements • Information Control • Change control• Assessment• Training
PAGE 22 PRESENTATION TITLE
CMBG Contributions to Industry CM Guidance Documents
IAEA TECDOC-1335 (2003)
"Configuration Management in Nuclear Power Plants“
Contained elements of INPO AP-929and ANSI/NIRMA CM-1.0
Criteria• Program management • Design requirements • Information Control • Change control• Assessment• Training
PAGE 23 PRESENTATION TITLE
CMBG Contributions to Industry CM Guidance Documents
2002 CMBG Conference - initiative to reach agreement between INPO and NEI documents
NEI CM Community of Practice (2002) CM Process and PI’s included in NEI Standard
Nuclear Performance Model (2003)
PAGE 24 PRESENTATION TITLE
A Brief History of CM in the Nuclear Industry
INPO - Margin Management (2003)
INPO reorganization emphasized, “Evaluating Configuration and Margin Management”
Greater than design basis range
Operating Point Limit
Normal Operating Point
Design or Tech Spec Basis Limit
Functional/Design Failure
Allowed operating range
Analyzed transient range
Operating margin
Design margin
( Design allows operation in the transient range. However operating restrictions consistent with the design, such as the magnitude and frequency of excursions into this range apply)
( The allowed operating range provides the normal margins operators use without violating setpoints )
( This is a prohibited range of operation and represents the additional conservative margin to account for uncertainties in design and construction )
PAGE 25 PRESENTATION TITLE
A Brief History of CM in the Nuclear Industry
INPO 03-04 (November 2003)
“Performance Objectives and Criteria”
Configuration Management CM.1 Maintaining Margins Consistent with
Design Requirements CM.2 Operational Configuration Control CM.3 Design Change Processes CM.4 Conduct of Engineering CM.5 Reactor Engineering and Fuel
Management
PAGE 26 PRESENTATION TITLE
A Brief History of CM in the Nuclear Industry
INPO 05-03 (May 2005)
“Performance Objectives and Criteria”
Configuration Management CM.1 Maintaining Margins Consistent with
Design Requirements CM.2 Operational Configuration Control CM.3 Design Change Processes
CM.4 Reactor Engineering and Fuel Management
PAGE 27 PRESENTATION TITLE
CMBG Contributions to Industry CM Guidance Documents
INPO AP-929, Rev 1 (2005) “Configuration Management Process Description”
“Three-Ball model became “CM Equilibrium Model” Return to CM Equilibrium (new) Margin Model (new)
PAGE 28 PRESENTATION TITLE
CMBG Contributions to Industry CM Guidance Documents
IAEA Draft Safety Report. “Application of Configuration Management in Nuclear Power Plants”(to be issued in 2007)
Elements of AP-929 (Rev 1)
PAGE 29 PRESENTATION TITLE
CMBG Contributions to Industry CM Guidance Documents
ANSI/NIRMA Standard-CM-1.0, Rev 1 “Configuration Management of Nuclear Facilities”
PAGE 30 PRESENTATION TITLE
2008 CMBG Conference Changes
First ever West Coast site
“Café” style breakouts
Wednesday IT forum• Dreaded “vendor” participation
PAGE 31 PRESENTATION TITLE
CMBG Contributions to Industry
What’s next?