国际核和放射性事件分级表简介及在我国核电厂事件中的应用

Introduction to the International Nuclear and Radiological Event Scale and its Application in Nuclear Power Plant Events in China

国际核和放射性事件分级表旨在向公众通报有关核设施事件的安全意义。我国国家核安全局成立以来,一直采用该分级表对民用核设施的事件进行定级和评定。在核电领域,从1991年我国第一座核电站———秦山核电站装料以来,就利用该分级表对核电厂发生的运行事件进行定级。随着我国运行核电厂数量的增多,运行事件数量也逐步增加,国际核和放射性事件分级表在核电厂中的运用越来越频繁、越来越广泛。本文通过对国际核和放射性事件分级表的发展历程、适用范围、总体说明、定级准则等进行介绍,并讨论该分级表在我国核电厂事件中的应用情况,为我国核电厂运行事件的定级提供参考。

The International Nuclear and Radiological Event Scale is intended to inform the public about the safety implications of nuclear facility events.Since the establishment of the National Nuclear Safety Administration of China,this scale has been used to grade and assess the events of civilian nuclear facilities.In the field of nuclear power,since the loading of QinShan Nuclear Power Station,the first nuclear power plant in China in 1991,the classification table has been used to grade the operational events occurring in nuclear power plants.With the increase in the number of nuclear power plants operating in China,the number of operational events has gradually increased,and the use of international nuclear and radiological event scales in nuclear power plants has become more frequent and widespread.This paper introduces the development history,scope of application,general description and grading criteria of the international nuclear and radiological event scale,and discusses the application of the scale in the event of nuclear power plants in China,so as to provide reference for the classification of important events in China’s nuclear power plants.