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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-STD973 (1992), ”Configuration Management”
(later replaced by ANSI/EIA-649-1998)

A Brief History of CM in the Nuclear Industry
 DOE STD 107393 “Configuration Management”
 Applicable to DOE nuclear facilities in the operational phase.
DOE-STD-1073 was updated in 2003

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

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

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

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 selfevaluation
 NUREG-1397, NUMARC 90-012, INPO 87-006 and
NUREG/CR-5147

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 after 22 year shutdown

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

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
 PP021994 “Position Paper on Configuration
Management Program”

A Brief History of CM in the Nuclear Industry
 First Nuclear CM benchmarking conference hosted by PPL Susquehanna in Fall 1994
 Forum to exchange information on CM processes and methods at work in the industry
 17 US utilities were represented
• Each utility made presentation about their CM program
• No motivational speeches
• No sales promotions by service providers

The CMBG Idea Grows
 Interest from industry to hold another similar conference
 Second conference hosted by
Ontario 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

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
 Web site developed
 Activities limited to information exchange
 Written Principles and Practices guide our endeavors.

e n e r n f
C o c e s
C
M
B
G
Year Host
1994 PP&L
1995 Ontario Hydro
1996 Houston Lighting & Power
1997 Commonwealth Edison
1998 NAESCO
1999 Duke Power
2000 Consolidated Edison
2001 Progress Energy
2002 PSEG Nuclear
2003 PPL Susquehanna
2004 Wolf Creek Nuclear
2005 First Energy
2006 Dominion
2007 SCE&G
2008 Pacific Gas and Electric
2009 Entergy
2010 Duke Energy
2011 PSEG Nuclear
2012 Exelon
2013 Southern Co.
Location
Poconos, PA
Ontario, Canada
Galveston, TX
Chicago, IL
Boston, MA
Charlotte, NC
Tarrytown, NY
Raleigh, NC
Atlantic City, NJ
Hershey, PA
Kansas City, KS
Cleveland, OH
Richmond, VA
Charleston, SC
Shell Beach, CA
Boston, MA
Charlotte, NC
Philadelphia, PA
Chicago, IL
Atlanta, GA

CMBG Accomplishments
 Annual Conferences
 Participation in development of industry documents
(e.g.; ANSI-NIRMA CM 1.0-2000, INPO AP-929,
INPO AP-932)
 Web Site (www.cmbg.org)
• CMBG history
• Conferences (proceedings from all previous conferences and info on upcoming conference)
• Steering Committee members
• IAEA Activities
• CM Links
• Papers and publications
 CMBG Google Group

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

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
Business Need:
Change Configurat ion
Configurat ion changed
1
Define t he configurat ion change needed
12
Accept changed configurat ion
11
Implement configurat ion change
2
Does need meet definit ion of configurat ion change?
No
3
Yes
Does change require alt ering hardware or approved design ?
No
Change does not alt er configurat ion
4
P repare nondesign operat ional configurat ion change
Yes
5
Does change require alt ering approved design?
Yes
No
6
P repare hardware equivalency changes
Configurat ion Change
7
Does change require alt ering design basis?
Yes
No
8
P repare safet y, licensing, and design basis document s
Design Change
Design Basis Change
10
P repare design requirement change
9
Obt ain licensing approval of proposed change

CMBG Contributions to Industry
CM Guidance Documents
ANSI/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

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)

CMBG Contributions to Industry
CM Guidance Documents
IAEA TECDOC-1335 (2003)
 "Configuration Management in Nuclear Power
Plants“
 Contained elements of INPO AP-929 and ANSI/NIRMA CM-1.0
Criteria
• Program management
• Design requirements
• Information Control
• Change control
• Assessment
• Training

A Brief History of CM in the Nuclear Industry
INPO - Margin Management (2003)
 INPO reorganization emphasized, “Evaluating
Configuration and Margin Management”
Functional/Design Failure
Design margin
Operating margin
Design or Tech Spec Basis Limit
Operating Point Limit
Normal Operating Point
Greater than design basis range
( This is a prohibited range of operation and represents the additional conservative margin to account for uncertainties in design and construction )
Analyzed transient range
( 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)
Allowed operating range
( The allowed operating range provides the normal margins operators use without violating setpoints )

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

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

CMBG Contributions to Industry
CM Guidance Documents
 INPO AP929, Rev 1 (2005) “Configuration
Management Process Description”
 “Three-Ball model became “CM Equilibrium Model”
 Return to CM Equilibrium
 Margin Model

CMBG Contributions to Industry
CM Guidance Documents
 IAEA Draft Safety Report. “Application of
Configuration Management in Nuclear Power Plants”
 Contains elements of AP-929 (Rev 1)

CMBG Contributions to Industry
CM Guidance Documents
 ANSI/NIRMA Standard-CM-1.0, Rev 1 (August 2007)
“Configuration Management of Nuclear Facilities”

CMBG Contributions to Industry
CM Guidance Documents


The Next Big Thing in Nuclear CM
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• CMBG is a forum for sharing lessons learned from the current generation of operating plants in developing CM controls/ processes for the next generation of the nuclear fleet
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