某核电厂1、2号机组运行事件先兆分析

Accident Sequence Precursor Analysis of Licensee Events of Units 1 and 2 of a Nuclear Power Plant

本文采用先兆分析方法对某核电厂1、2号机组运行事件进行定性分析和定量分析,确定出对核安全影响较大且具有重要反馈价值的潜在先兆事件和一般先兆事件;并对潜在先兆事件和一般先兆事件进行统计、归类和趋势分析,结果表明某核电厂1、2号机组潜在先兆事件或一般先兆事件的原因全部是设备本身的缺陷或故障,因此提高设备性能是减少潜在先兆事件或一般先兆事件的最主要措施,尤其是提高棒的控制系统和输变电系统所包含设备的性能。本文为提高某核电厂的核安全管理水平提供有效支持。

The accident sequence precursor analysis method was adopted to evaluate qualitatively and quantitatively the licensee operation events of units 1 and 2 of a nuclear power plant, and the potential accident sequence precursors or general accident sequence precursors were identified, which were some risk significant events and were important for experience feedback.By the statistics, classification and trend analysis, the results showed that the causes of the potential accident sequence precursors or general accident sequence precursors of units 1 and 2 of a nuclear power plant were defects or failures of the equipment.Therefore, the most effective measure to reduce the number of the potential accident sequence precursors or general accident sequence precursors is to improve equipment performance, especially the equipment performance of the systems of control rod and the power transmission and transformation.This article provides effective supports for improving the nuclear safety management level of a nuclear power plant.