三代核电厂电气贯穿件用屏蔽双绞导体组件的设计及验证  

Design and Verification of STP Feedthrough of EPA for Third Generation NPPs

作　　者：王新宇[1] 周天[1] 王广金[1] 陈青[1] 周缘[1] 王江武 Wang Xinyu;Zhou Tian;Wang Guangiin;Chen Qing;Zhou Yuan;Wang Jiangwu(Nuclear Power Institute of China,Chengdu,610213,China)

机构地区：[1]中国核动力研究设计院

出　　处：《核动力工程》2019年第3期155-158,共4页Nuclear Power Engineering

摘　　要：根据三代核电厂对于屏蔽双绞(STP)电缆贯穿安全壳的功能需求,结合三代核电厂的环境条件和STP电缆的功能要求,设计了一种电气贯穿件(EPA)用STP导体组件专门用于安全壳内外的STP电缆的连接。重点介绍了STP导体组件的结构设计、材料选型,并通过型式试验对STP导体组件的密封性能、电气性能、耐辐照性能和电磁兼容性能等关键特性进行了试验验证。试验结果表明,STP导体组件满足规定的设计寿命、密封和电气等预期设计要求。Based on the functional requirements of shielded twisted-pair(STP)cable penetrating containment,and combined with the environmental conditions of the third-generation NPPs,this paper developed a STP feedthrough for electrical penetration assembly(EPA),which is specially used for connecting STP cables inside and outside of the containment.This paper focuses on the overall structure design,material selection and type test of STP feedthrough.Through a series of type tests,it is proved that the STP feedthrough has good sealing performance,electrical performance,irradiation resistance and electromagnetic compatibility.The test results show that the STP assembly meets the expected design requirements of specified design life,sealing and electricity.

关 键 词：电气贯穿件(EPA) 屏蔽双绞(STP) 导体组件 型式试验 

分 类 号：TL374.4[核科学技术—核技术及应用]