EPRI/NRC-RES Fire PRA Methodology for Nuclear Power Facilities: Detailed Methodology, Final Report, (NUREG/CR-6850, EPRI 1011989, Volume 2)

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Publication Information

Date Published: September 2005

Prepared by:
S.P. Nowlen, SNL Technical Program Manager
B. Najafi, SAIC Technical Program Manager
F.J. Wyant and J. Forester, SNL
M. Kazarians, Kazarians and Associates
A. Kolaczkowski, F. Joglar, and G. Hannaman, SAIC
D. Funk, Edan Engineering
R. Anoba, Anoba Consulting

Sandia National Laboratories (SNL)
P.O. Box 5800
Albuquerque, New Mexico 87185-0744

Science Applications International Corporation (SAIC)
4920 El Camino Real
Los Altos, California 94022

Prepared for:
Electric Power Research Institute (EPRI)
3420 Hillview Avenue
Palo Alto, California 94303

R.P. Kassawara, EPRI Project Manager

Division of Risk Analysis and Applications
Office of Nuclear Regulatory Research (RES)
U.S. Nuclear Regulatory Commission
Washington, DC 20555-0001

J.S. Hyslop, NRC Project Manager

NRC Job Code N6107

Availability Notice


This report documents state-of-the-art methods, tools, and data for the conduct of a fire Probabilistic Risk Assessment (PRA) for a commercial nuclear power plant (NPP) application. This report is intended to serve the needs of a fire risk analysis team by providing a structured framework for conduct of the overall analysis, as well as specific recommended practices to address each key aspect of the analysis. The methods have been developed under the Fire Risk Requantification Study. This study was conducted as a joint activity between the Electric Power Research Institute (EPRI) and the U.S. Nuclear Regulatory Commission (NRC), Office of Nuclear Regulatory Research (RES), under the terms of an NRC/EPRI Memorandum of Understanding and an accompanying Fire Risk Addendum. Participants from the U.S. nuclear power industry supported demonstration analyses and provided peer review of this methodology. Methodological issues raised in past fire risk analyses, including the Individual Plant Examination of External Events (IPEEE) fire analyses, have been addressed to the extent allowed by the current state-of-the-art and the overall project scope. While the primary objective of the project was to consolidate existing state-of-the-art methods, in many areas, the newly documented methods represent a significant advancement over previously documented methods.

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