Insights into Improving the Efficacy of Nuclear Power Plant Inspection Procedures Based Upon Risk Analysis.

摘要

A study was conducted to determine how insights from the Reactor Safety Study might improve nuclear power plant inspections. Abstracts of Licensee Event Reports and non-compliance citations for operating plants were reviewed to identify performance deviations associated with risk-mitigating systems. Procedural deficiencies were important in these deviations. Although no changes can be recommended as a result of this preliminary study,possible improvements were identified. Further study is recommended as follows: (1) The allocation of inspection effort based on the relationship of each inspection activity to the control of risk; (2) The use of Licensee Event Reports and non-compliance citations to identify causes of performance deviations or as the basis for the evaluation of the risk-related performance of plants;and (3) The review of test and maintenance procedures for risk-mitigating systems to identify procedural inadequacies that lead to performance deviations.