Enhancements to data collection and reporting of single and multiple failure events
- Sandia National Labs., Albuquerque, NM (United States)
- JBF Associates, Inc., Knoxville, TN (United States)
- NUS Corp., Gaithersburg, MD (United States)
- Nuclear Regulatory Commission, Washington, DC (United States)
During the past few years, methods have been developed for quantifying and analyzing common cause failures (CCFs). These methods have outpaced current data collection activities. This document discusses the collection and documentation of failure events at nuclear power plants with respect to these new CCFs methods. The report concentrates on the information necessary to improve the parameter estimates for both independent and dependent events in probabilistic risk assessments (PRAS) and alludes to the fact that the same information can be used to enhance other nuclear power plant activities. Several existing data bases are reviewed as to their adequacy for these new CCF methods, and areas where information is lacking, either because certain information is simply not required to be reported or because required information was simply not reported, are identified. Finally, data needs identified from recent PRAs are discussed.
- Research Organization:
- Nuclear Regulatory Commission, Washington, DC (United States). Div. of Safety Issue Resolution; Sandia National Labs., Albuquerque, NM (United States)
- Sponsoring Organization:
- Nuclear Regulatory Commission, Washington, DC (United States)
- DOE Contract Number:
- AC04-76DP00789
- OSTI ID:
- 10143737
- Report Number(s):
- NUREG/CR--5471; SAND--89-2562; ON: TI93011463
- Country of Publication:
- United States
- Language:
- English
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