不同标准体系下接地故障保护简析
董 青(悉地(北京)国际建筑设计顾问有限公司,北京市 100013)
汪嘉懿(建研科技股份有限公司,北京市 100013)
Simple Analysis of Ground Fault Protection under Different Standard Systems
DONG Qing(CCDI(Beijing)International Architectural Design Consultant Co.,Ltd.,Beijing 100013,China)
WANG Jiayi(CABR Technology Co.,Ltd.,Beijing 100013,China)
Abstract:This paper compares and analyzes the difference and relation about definition,protection objects,measures taken and so on among IEC,domestic standards and American standards on ground fault protection, and puts forward suggestion on low‑ voltage distribution design and its standard system.
Key words:ground fault;fault protection;protection against electric shock;line‑to‑earth short ‑circuit;ground fault protection of equipment;effective ground fault current path;safety protection;basic protection
摘 要:对比分析IEC、国内标准规范和美国标准关于接地故障的定义、保护对象、保护措施等方面的区别和联系,提出对于国内低压配电设计及其标准规范体系中与接地故障保护相关的建议。
关键词:接地故障;故障防护;电击防护;线对地短路;设备的接地故障保护;有效接地故障电流路径;安全防护;基本防护
中图分类号:TU852 文献标识码:A
doi:10.3969 / j. issn.1003 - 8493.2021.06.009