核电厂安全重要物项的分级识别概述

Review of Categorizing and Identifying Structures,Systems,and Components in NPPS According to Their Safety Significance

论文介绍了国内核安全法规和现有标准中基于确定论方法的核电厂安全相关物项分级方法,以及美国核电领域基于风险指引的安全重要物项分级和筛选识别方法。通过美国核电厂基于风险指引物项分级的应用实例,说明开展安全重要物项分级的意义和必要性。

This paper introduces the categorization method of safety-related SSCs based on deterministic method in China's nuclear safety regulations and standards,and introduces the risk-informed categorization and identification methods for safety-significant SSCs in the U.S.nuclear power field.This paper illustrates the significance and necessity of developing risk-informed categorization,through the example of the application of this categorization method in the US nuclear power plants.