United States Nuclear Regulatory Commission - Protecting People and the Environment

Shutdown and Low-Power Operation at Commercial Nuclear Power Plants in the United States (NUREG-1449)

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Publication Information

Date Published: September 1993

Division of Systems Safety and Analysis
Office of Nuclear Reactor Regulation
U.S. Nuclear Regulatory Commission
Washington, DC 20555-0001

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Abstract

The report contains the results of the NRC staff's evaluation of shutdown and low-power operations at commercial nuclear power plants in the United States. The report describes studies conducted by the staff in the following areas: operating experience related to shutdown and low-power operations, probabilistic risk assessment of shutdown and low-power conditions, and utility programs for planning and conducting activities during periods the plant is shut down. The report also documents the staff's evaluations of a number of technical issues regarding shutdown and low-power operations, including the principal findings and conclusions. Potential new regulatory requirements are discussed, as are potential changes in NRC programs. This is a final report. Comments on the draft version of the report are discussed in Appendix C of this report.

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