核电厂1E级电气设备环境鉴定

Environmental Qualification for Class 1E Electric Equipment in Nuclear Power Plant

从核安全纵深防御的视角,阐述了核电厂1E级电气设备环境鉴定的安全意义、核心要素,以及实施策略、方法和程序,并对国内外现行的环境鉴定标准(如IEEE323、R.G.1.89、IEC780等)所确立的核心思想和基本原则,作了延伸和具象化描述．以建立和完善其可操作性。出于同样的目的,笔者根据多年的经验,针对实践中最常面对的,也是存在问题较多的,和缓环境1E级电气设备鉴定的关键点——老化评价,作了较多的描述。

This paper describes, from the view point of defense in depth, the significance and key points as well as procedures and approaches to environmental qualification for class 1E electric equipment in nuclear power plants. Principles presented in standards, such as IEEE323,R.G.1.89, and IEC780, are detailed to the extent of being operable. Meanwhile, expanded descriptions based on practices and experiences aremisinterpretatiopresented upon the aging evaluation, which is a critical point in the whole job, to avoid misinterpretation of above principles.