魏 民（连云港沃利工程技术有限公司上海分公司，上海市 201101）

Characteristics of Low‑voltage Distribution Design of German Chemical Enterprises

WEI Min(Lianyungang Worley Engineering Co.,Ltd.,Shanghai Branch,Shanghai 201101，China)

Abstract：Some practices and characteristics of low‑voltage distribution design of German chemical enterprises are introduced,including the use of an AC low‑voltage distribution system with centralized neutral point grounding,and transformer‑low‑voltage single‑busbar segmented main wiring scheme with an“N + 1”configuration,and the customary practices in China’s engineering design are compared and analyzed.

Key words：German chemical enterprises;low‑voltage distribution design;IEC standard;grounding center cabinet;fuses;low‑voltage motor integrated protector;Variable Frequency Drive（VFD）selection;movable floor for distribution room

摘　要：介绍德国化工企业低压配电设计的一些实践做法和特点，包括采用中性点集中一点接地的交流低压配电系统、采用“N + 1”配置的变压器-低压单母线分段主接线方案等，并与我国工程设计中的习惯做法进行对比与分析。

关键词：德国化工企业；低压配电设计；IEC标准；接地中心柜；熔断器；低压电机综合保护器；变频器选择；配电间活动地板

中图分类号：TU852                　  文献标识码：A

doi：10.3969 / j. issn.1003 － 8493.2024.06.004