Application of Reliability-Centered Maintenance to San Onofre Units 2 and 3 auxiliary feedwater systems: Final report
This report describes the third EPRI-sponsored application of Reliability-Centered Maintenance (RCM) to nuclear power plant systems. The goal of this study was to extend and enhance the proven RCM process through its application to a standby safety system and to incorporate, where practical, the use of fault tree models, reliability block diagrams, and quantitative importance measures to assist in the determination of the most critical portions of a given system. The study chosen for RCM application was the Auxiliary Feedwater System of San Onofre Units 2 and 3. The results of the study indicated that only a fraction of components in the system were responsible for the dominant system failure modes. The performance of these components during routine functional testing could be monitored and trended to help identify when extensive inspection and overhaul tasks should be performed. For those components which were shown to not have a significant failure mode, a reduction in the current PM program seems justified.
- Research Organization:
- Erin Engineering and Research, Inc., Walnut Creek, CA (USA); Electric Power Research Inst., Palo Alto, CA (USA)
- OSTI ID:
- 6100769
- Report Number(s):
- EPRI-NP-5430; ON: TI88920041
- Country of Publication:
- United States
- Language:
- English
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220900* -- Nuclear Reactor Technology-- Reactor Safety
AUXILIARY SYSTEMS
AUXILIARY WATER SYSTEMS
COMPUTER CODES
COOLING SYSTEMS
ENERGY SYSTEMS
ENRICHED URANIUM REACTORS
FAILURE MODE ANALYSIS
FAULT TREE ANALYSIS
FEEDWATER
G CODES
HYDROGEN COMPOUNDS
MAINTENANCE
OXYGEN COMPOUNDS
POWER REACTORS
PWR TYPE REACTORS
REACTOR COMPONENTS
REACTOR COOLING SYSTEMS
REACTOR SAFETY
REACTORS
RELIABILITY
SAFETY
SAN ONOFRE-2 REACTOR
SAN ONOFRE-3 REACTOR
SPECIFICATIONS
SYSTEM FAILURE ANALYSIS
SYSTEMS ANALYSIS
THERMAL REACTORS
WATER
WATER COOLED REACTORS
WATER MODERATED REACTORS