低压配电系统内电源侧的直接接地和一点接地  

Direct Grounding and One Point Grounding of Power Supply Side in Low Voltage Distribution System

作　　者：凌智敏 LING Zhimin(Shenzhen General Institute of Architectural Design and Research Co.,Ltd.,Shenzhen 518031,Guangdong Province,China)

机构地区：[1]深圳市建筑设计研究总院有限公司,广东省深圳市518031

出　　处：《建筑电气》2020年第11期8-17,共10页Building Electricity

摘　　要：简要介绍我国低压配电系统接地方式演变过程,重点介绍系统内电源侧的接地方式:直接接地和一点接地。阐述信息时代的今天,防止杂散电流、杂散电磁场对信息设备及系统干扰的重要性,推荐在多电源的TN系统中实施N线的一点接地。The evolution process of grounding mode of low voltage distribution system in China is briefly introduced,with emphasis on the grounding mode of power supply side in the system:direct grounding and one point grounding.The importance of preventing stray current and stray electromagnetic field from interfering with information equipment and system in the information age is expounded,and the implementation of N⁃wire one point grounding is recommended in multi⁃power TN system.

关 键 词：多电源的TN系统 杂散电流 “接地与接零” 低压配电系统电源侧的接地方式 直接接地 一点接地 星形联结点 中性点 

分 类 号：TU852[建筑科学]