ML20056G082
| ML20056G082 | |
| Person / Time | |
|---|---|
| Issue date: | 07/26/1993 |
| From: | Russell W Office of Nuclear Reactor Regulation |
| To: | Tipton T NUCLEAR ENERGY INSTITUTE (FORMERLY NUCLEAR MGMT & |
| References | |
| NUDOCS 9309020025 | |
| Download: ML20056G082 (15) | |
Text
_ _
d July 26, 1993 Thomas E. Tipton Vice President and Director Operations, Management, and Support Services Division Nuclear Management and Resources Council 1776 Eye Street, N.W., Suite 300 Washington, DC 20006-3706
Dear Mr. Tipton:
The NRC's presentation for the NUMARC-hosted industry workshops is enclosed for your use and information. We will discuss the maintenance rule, the development of the regulatory guide for the implementation of the rule, and the NRC's future activities in the maintenance area. A copy of this presentation material will be placed in the Public Document Room.
To facilitate preparations for the workshops, a list of the NRC workshop attendees for the Atlanta and St. Louis sessions is enclosed.
Should you have any questions regarding this matter, please contact Rich Correia at (301) 504-1009.
Sincerely, O!ilGINAL SIGNED BY W.T. RUSSELL William T. Russell, Associate Director for Inspection and Technical Assessment Office of Nuclear Reactor Regulation Enclosures As stated DISTRIBUTION:
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Thomas E. Tipton Vice President and Director Operations, Management, and Support Services Division I
Nuclear Management and Resources Council 1776 Eye Street, N.W., Suite 300 Washington, DC 20006-3706
Dear Mr. Tipton:
I The NRC's presentation for the NUMARC-hosted industry workshops is enclosed for your use and information. We will discuss the maintenance rule, the development of the regulatory guide for the implementation of the ~ rule, and the NRC's future activities in the maintenance area. A copy of this l
presentation material will be placed in the public document room.
To facilitate preparations for the workshops, a list of the NRC workshop attendees for the Atlanta and St. Louis sessions is enclosed.
Should you have any questions regarding this matter, please contact Rich Correia at (301) 504-1009.
Sincerely, 1
l William T. Russell, Associate Director for Inspections and Technical Assessments Office of Nuclear Reactor Regulation U.S. Nuclear Regulatory Commission Washington, DC 20555 Enclosures As stated cc:
T. Murley l
F. Miraglia 1
l DISTRIBUTION:
Central Files (PI-22)
PDR RPEB Reading File 4
DRIL Reading File I
JSr.iezek WTRussell CHel temes AGody Jr.
TFoley 1
CPetrone TPolich l
FTalbot OFC SEND SC:RPEB:DRIL BC:RPED:DRIL D:DRIL:NRR DO:RES ADT:NRR DEDO NAME TO RPCorrela:jp 2T.asy c r<.,
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17
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e NUMARC MAINTENANCE WORKSHOP AUGUST 1993 DEVELOPMENT OF REGULATORY GUIDANCE FOR THE MAINTENANCE RULE 10 CFR 50.65 WILLIAM T. RUSSELL ASSOCIATE DIRECTOR FOR INSPECTION AND TECHNICAL ASSESSMENT OFFICE OF NUCLEAR REACTOR REGULATION NUCLEAR REGULATORY COMMISSION L-
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NUMARC MAINTENANCE WORKSHOP AUGUST 1993 DEVELOPMENT OF REGULATORY GUIDANCE FOR THE MAINTENANCE RULE 10 CFR 50.65 JACK HELTEMES DEPUTY DIRECTOR FOR GENERIC ISSUES AND RULEMAKING OFFICE OF NUCLEAR REGULATORY RESEARCH
OBJECTIVE OF MAINTENANCE RULE,10 CFR 50.65 This rule requires that licensees monitor the performance or condition of certain structures, systems and components LSSCs) against licensee established goals in a manner sufficient to provide reasonable assurance that those SSCs will be capable of performing their intended function The rule will be effective July 10,1996 1
i Slide 1
[
SCOPE: 50.65(b)
All safety-related SSCs Non-safety-related SSCs that:
Mitigate accidents or are used in EOPs Whose failure could prevent safety-related SSCs from fulfilling their intended function Whose failure could cause a scram or actuation of a safety system Slide -2
GOAL SETTING AND MONITORING; da)(1) e Goals are to be established by licensees e
Goals are to be commensurate with safety significance e
Goals may be performance-oriented or condition-oriented e
Licensees should use PRA or IPE results in setting goals e
Monitoring is to be performed on an ongoing basis Slide 3 i
PREVENTIVE M AINTEN ANCE WITHOUT MONITORING: (aX2?
For SSCs whose performance is effectively controlled by preventive maintenance activities.
Licensee would establish performance criteria Single maintenance preventible failure would require root cause evaluation and corrective action 1
Second maintenance preventible failure would require goal setting and monitoring Licensees are encouraged to consider the use of reliability-based methods for their preventive maintenance programs Slide 4
\\
EVALUATION AND ADJUSTMENT ACTIVITIES:(a)(3?
Monitoring efforts and associated goals, and preventive e
maintenance activities must be evaluated at least every refueling cycle, not to exceed 24 months, taking into account industry experience where practical Ensure objective of preventing failures of SSCs through e
PM is appropriately balanced against the objective of minimizing the unavailability of those SSCs due to monitoring or PM Assessment of the total plant equipment out of service e
and overall effect on plant safety should be made whenever equipment is taken out of service for maintenance Slide 5
~
DEVELOPMENT OF REGULATORY GUIDANCE NRC/NUMARC steering group was formed to facilitate the development of guidance for the implementation of the maintenance rule.
NRC/NUMARC individually developed guidance documents e
Public meetings held to discuss NRC and NUMARC comments on these guidance documents NUMARC developed NUMARC 93-01, " Industry Guideline for Monitoring the Effectiveness of Maintenance at Nuclear Power Plants" including associated verification and validation activities in June 1993 NRC Regulatory Guide 1.160 endorsed the NUMARC Guideline Slide 6
REGULATORY GUIDE 1.160 The scope of monitoring under the rule encompasses plant SSCs that directly and significantly affect plant operations, regardless of what organization performs the maintenance activities (i.e.,
the switchyard)
Plant-specific emergency diesel generator performance or condition should be monitored as goals under (a)(1) or performance criteria under (a)(2) of the maintenance rule 10 CFR 50.65 Goals / performance criteria could be Station Blackout Rule (10 CFR 50.63) target values (i.e., reliability of 0.95 or O.975)
Slide 7
REGULATORY GUIDE 1.160 (continued?
The effectiveness of EDG maintenance associated with the station blackout rule could be monitored using:
Trigger values from NUMARC 87-00, Appendix D e
Licensee established unavailability criteria such as used in Individual Plant Examinations (IPE) i Slide 8
EMERGENCY DIESEL GENERATOR TESTING AND REPORTING REQUIREMENTS The NRC staff is preparing a generic letter that will allow accelerated testing and special reporting recairements for emergency diesel generators (EDGs) to be removed from plant technical specifications (TS).
Licensees may:
Adopt the accelerated testing provisions of the improved Standard Technical Specifications until maintenance rule goes into effect on July 10,1996.
QR, implement the provisions of the maintenance rule for EDGs, including staff guidance (R.G.1.160), earlier than July 10, 1996 and request the removal of the TS provisions for accelerated testing and special reporting requirements for EDGs. The early implementation would apply to EDGs only, not the rest of the plant.
Slide 9
FUTURE ACTIVITIES Prepare draft inspection procedure and hold a public workshop in the spring of 1994 Perform pilot inspections after the public workshop Results will be provided to licensees for information only, no enforcement actions will be taken Selection of plants will be coordinated through the NRC Regional Offices and NUMARC A lessons learned workshop to discuss the final version of the inspection procedure will be held in the spring of 1995 Slide 10
Enclosure NRC Staff who plan to attend the NUMARC maintenance rule workshops:
Atlanta Bill Russell, Associate Director for Inspection and Technical Assessment, NRR Richard P. Correia, Chief, Section B, RPEB, NRR Thomas Foley, Senior Operations Engineer, NRR Norman Blumberg, Chief, Maintenance Section, DRS, Region I Lee Bettenhausen, Chief, Operations Branch, DRS, Region I Albert F. Gibson, Director DRS, RII Johns P. Jaudon, Deputy Director, Division of Reactor Safety, Region II Caudie Julian, Chief, Engineering Branch, DRS, RII Jerome J. Blake, Chief, Materials & Processed Section, EB,DRS,RII Nick Economos, MPS,DRS,RII Billy R. Crowley, MPS,DRS,RII William P. Kleinsorge, MPS,DRS,RII Joseph J. Lenahan, MPS,DRS, RII James L. Coley, MPS,DRS,RII Milton B. Shymlock, Chief Plant Systems Section, EB,DRS,RII Edward H. Girard, Team Leader, EB,DRS,RII Charles D. Petrone, Operations Engineer, NRR Thomas Stetka, Chief, DRP, RIV Robert Baer, Chief, Engineering Issues Branch, DSIR, RES Jeff Sharkey, Senior Operations Engineer, License Renewal Branch, NRR St. Louis Clements J. Heltemes, Jr., Deputy Director for Generic Issues and Rulemaking, Office of Research Samuel J. Collins, Director, Division of Reactor Safety, Region IV Dale Powers, Chief, Maintenance Section, DRS, Region IV 4
Phil Wagner, Team leader, DRS, Region IV Lewis F. Miller, Chief, Reactor Safety Branch, Region V Paul Narbut, Project Engineer, Region V Richard P Correia, Chief, Section B, Licensee Performance and Quality Evaluation Branch, NRR Thomas Foley, Senior Operations Engineer, NRR Mark Ring, Chief, Engineering Branch, DRS, Region III Frank Jablonski, Chief, Maintenance and Outage Section, DRS, Region III Charles D. Petrone, Operations Engineer, NRR Thomas Stetka, Chief, DRP, RIV Robert Baer, Chief, Engineering Issues Branch, DSIR, RES Jeff Sharkey, Senior Operations Engineer, License Renewal Branch, NRR i