大型仓储物流中心厂区路灯配电系统优化设计  

Optimization Design of Street Lamp Distribution System in Large Warehouse Logistics Center

作　　者：王东 Wang Dong(China Jingye Engineer Co.,Ltd,Beijing 100088,China)

机构地区：[1]中国京冶工程技术有限公司,北京100088

出　　处：《智能建筑电气技术》2023年第3期55-58,共4页Electrical Technology of Intelligent Buildings

摘　　要：室外路灯接地系统直接关系人身安全,本文通过对比分析TN系统与TT系统的接地故障,并增加RCD进行配合,对比两种系统自身的特点,方案中选择以TN-S系统且路灯分设接地形式,解决路灯单相接地短路引发的预期接触电压问题。Outdoor street lamps adopt TN-S system or TT system,which is directly related to personal safety.The characteristics of the two systems are compared by comparing the ground fault analysis of different systems in TN and TT system In this paper and adding RCD for coordination.The street lamp chooses TN-S system and the street lamp is grounded separately to solve the problem of expected contact voltage caused by single-phase grounding short circuit of street lamp.

关 键 词：TN系统 TT系统 剩余电流装置 分设接地 接地故障 预期接触电压 

分 类 号：TU856[建筑科学]