Review of the Byron/Braidwood Units 1 and 2 Auxiliary Feedwater System Reliability Analysis.

摘要

This report presents the results of a review of the Auxiliary Feedwater System Reliability Analysis for Byron Units 1 and 2/Braidwood Units 1 and 2. The objective of this report is to estimate the probability that the Auxiliary Feedwater System will fail to perform its mission for each of three different initiators: loss of main feedwater with offsite power available, loss of offsite power, and loss of all 460 VAC power. The scope, methodology, and failure data are prescribed by NUREG-0611, Appendix III. The results are compared with those obtained in NUREG-0611 for other Westinghouse plants.