NUREG-1742, “Perspectives Gained From the Individual Plant Examination of External Events (IPEEE) Program”; Draft for Comment

الملخص

The Nuclear Regulatory Commission issued on June 28, 1991, Supplement 4 to Generic Letter 88-20, "Individual Plant Examination of External Events (IPEEE) for Severe Accident Vulnerabilities, 10 CFR 50.54(f)." Associated guidance for conduct of the IPEEEs was issued in June 1991 in NUREG-1407, "Procedural and Submittal Guidance for the Individual Plant Examination of External Events (IPEEE) for Severe Accident Vulnerabilities." Specifically, the Nuclear Regulatory Commission requested that each licensee perform an IPEEE to identify and report to the Nuclear Regulatory Commission all plant-specific vulnerabilities to severe accidents caused by external events. This review was limited to plant behavior under full-power operating conditions. The external events to be considered included seismic events; internal fires; and high winds, floods, and other (HFO) external initiating events including transportation or nearby facility accidents and plant-unique hazards. All currently operating nuclear power plants in the United States have completed their assessments and submitted their analyses to the NRC. Consistent with the intent of Generic Letter 88-20, the primary goal of the IPEEE progr