BS 7671及其相关IEC / GB标准的差异性分析

张大海（深圳中广核工程设计有限公司，广东省深圳市 518172）

Difference Analysis of BS 7671 and Associated IEC / GB Standards

ZHANG Dahai(China Nuclear Power Design Co.,Ltd.,Shenzhen 518172，Guangdong Province,China)

Abstract：An analysis and comparison is made on the differences between the main requirements on distribution system design,electrical device selection and installation in British Standard BS 7671 - 2018 and the corresponding contents in IEC 60364 or relevant Chinese national standards. The purpose is to provide reference for the system and layout design of low‑voltage electrical devices in domestic buildings,and to provide suggestions for the electrical design activities of foreign projects with BS 7671 as the applicable standard.

Key words：electrical device;electric shock;fault loop impedance;minimum voltage conversion coefficient;voltage range;bypass equipotential bonding;operation and maintenance channel;accessibility

摘　要：针对英国标准BS 7671 - 2018中所涉及配电系统设计、电气装置选择和安装方面的主要要求，与IEC 60364或相关中国国家标准相应内容作差异性的分析对比,旨在为国内建筑物低压电气装置的系统、布置设计提供借鉴，也为以BS 7671为适用标准的国外项目电气设计提供建议。

关键词：电气装置；电击；故障回路阻抗；最低电压折算系数；电压范围；旁路等电位联结；运行维护通道；可达性

中图分类号：TU202      　　  　  文献标识码：A

doi：10.3969 / j. issn.1003 － 8493.2021.10.005