摘要
介绍系统接地和保护接地的主要功能,以美国国家电气法规NFPA 70-2017《National Electrical Code》保护接地的要求为线索,分析联结与跨接的差异,探讨我国保护接地工程应用中的实际问题。
The main functions of system grounding and protective grounding are introduced,based on the requirements of National Electrical Code(NFPA 70-2017)for protective grounding,this paper analyzes the differences between bonding and jumping,and discusses the practical problems in the application of protective grounding engineering in China.
作者
陈谦
汤威
谢炜
CHEN Qian;TANG Wei;XIE Wei(Shandong Yijiang Architecture Design Co.,Ltd.,Ji'nan 250022,China;China Institute of Building Standard Design&Research,Beijing 100048,China;Suzhou Yike Kejian Architectural Design&Research Institute Co.,Ltd.,Suzhou 215006,Jiangsu Province,China)
出处
《建筑电气》
2019年第12期34-38,共5页
Building Electricity
关键词
接地系统
保护接地
接地极系统
设备接地线
跨接线
联结线
金属导管
故障电流
grounding system
protective grounding
grounding electrode system
equipment grounding conductor
bonding jumper
bonding conductor
metal conduit
fault current
