- Author
-
Lambright, J. A.
|
Brosseau, D. A.
|
Payne, A. C., Jr.
|
Daniel, S. L.
- Title
- Analysis of the LaSalle Unit 2 Nuclear Power Plant: Risk Methods Integration and Evaluation Program (RMIEP). Internal Fire Analysis.
- Coporate
- Sandia National Labs., Albuquerque, NM
- Sponsor
- Nuclear Regulatory Commission, Washington, DC
- Report
-
SAND92-0537-VOL-9,
March 1993,
715 p.
- Distribution
- Available from National Technical Information Service
- Keywords
-
nuclear power plants
|
risk assessment
|
methodology
|
accident investigations
|
fire risk assessment
- Identifiers
- Probabilistic Risk Assessment (PRA); Risk Methods Integration and Evaluation Program (RMIEP); LaSalle Nuclear Power Plant; integrated quantification and uncertainty analysis; level 1
- Abstract
- This report is a description of the internal fire analysis performed on the LaSalle County Nuclear Generating Station, Unit 2. As part of this effort, a new data base for fires was constructed (NUREG/CR-4586). This data base aided in quantification of fire initiating event frequencies. The most detailed integration between fire risk assessment and internal events analysis, to date, was also accomplished. The same system fault trees used for internal events were utilized for the fire analysis, which included modeling of components down to the contact pair level. Subsidiary equations were created to map the effects of cable failures and spurious actuations. All component and associated cable locations were traced and mapped into the fault trees. A detailed screening analysis was performed which showed most plant areas had a negligible contribution to fire-induced core damage frequency. A detailed analysis of the fire risk resulted in a total (mean) core damage frequency of 3.21E-5 per year.