Common cause evaluations in applied risk analysis of nuclear power plants. [PWR] [electronic resource].

Published:: Oak Ridge, Tenn. : Oak Ridge National Laboratory, 1983.
Oak Ridge, Tenn. : Distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy
Physical Description:: Pages: 199 : digital, PDF file
Additional Creators:: Oak Ridge National Laboratory and United States. Department of Energy. Office of Scientific and Technical Information

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Summary:

Qualitative and quantitative approaches were developed for the evaluation of common cause failures (CCFs) in nuclear power plants and were applied to the analysis of the auxiliary feedwater systems of several pressurized water reactors (PWRs). Key CCF variables were identified through a survey of experts in the field and a review of failure experience in operating PWRs. These variables were classified into categories of high, medium, and low defense against a CCF. Based on the results, a checklist was developed for analyzing CCFs of systems. Several known techniques for quantifying CCFs were also reviewed. The information provided valuable insights in the development of a new model for estimating CCF probabilities, which is an extension of and improvement over the Beta Factor method. As applied to the analysis of the PWR auxiliary feedwater systems, the method yielded much more realistic values than the original Beta Factor method for a one-out-of-three system.

Report Numbers:

E 1.99:ornl/tm-8297
ornl/tm-8297

Subject(s):

Note:

Published through SciTech Connect.
04/01/1983.
"ornl/tm-8297"
"DE83010401"
Taniguchi, T.; Ligon, D.; Stamatelatos, M.

Funding Information:

W-7405-ENG-26

View MARC record | catkey: 23781958