Probabilistic Risk Assessment (PRA) applications

Technical Report · Wed Jan 01 04:00:00 EST 1986

OSTI ID:6187944

Higgins, J C

This project was performed for the Region I Office of the Nuclear Regulatory Commission. The goal of the current phase of the project was to correlate the system reliability insights of the Limerick PRA with the Limerick programs/test procedures and with the NRC inspection procedures. To perform these tasks, a methodology was first developed on how best to extract pertinent reliability information from the PRA. A number of portions of the PRA were used, the most productive being the system fault trees and their associated minimal cutsets. Also used, however, were the dominant accident sequence event trees and the PRA text itself. The PRA was found to be most useful for inspection planning and for focusing the on-site review efforts. The developed methodology was applied to four Limerick systems: Emergency Service Water, AC Power, DC Power, and the Automatic Depressurization System. 9 refs.

• Research Organization: Brookhaven National Lab., Upton, NY (USA)
• DOE Contract Number: AC02-76CH00016
• OSTI ID: 6187944
• Report Number(s): NUREG/CR-4372; BNL-NUREG-51914; ON: TI86006420
• Country of Publication: United States
• Language: English

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