室外道路照明接地型式的选择分析  

Selection and Analysis of Grounding Types for Outdoor Road Lighting

作　　者：何铁峰[1] He Tiefeng(Shanghai Tunnel Engineering&Rail Transit Design and Research Institute,Shanghai 200235,China)

机构地区：[1]上海市隧道工程轨道交通设计研究院,上海200235

出　　处：《智能建筑电气技术》2024年第2期18-20,共3页Electrical Technology of Intelligent Buildings

摘　　要：通过分析道路照明10kV电源端的接地系统,本文对TN-S系统和TT系统两种接地型式进行了比较和分析,认为类似室外道路照明这些无等电位联结作用的户外场所,低压配电应优先采用TT系统接地型式,可供类似工程参考和借鉴。Based upon the study of the grounding system at the 10kV power supply terminal,the TN-S system and TT system are compared and analyzed.It is concluded that the TT system should be preferred for low-voltage power distribution in outdoor places without equipotential bonding such as outdoor road lighting,which can be used for reference by similar projects.

关 键 词：道路照明 共用接地极 10kV电源端 TT系统 TN-S系统 故障电压 

分 类 号：TM862[电气工程—高电压与绝缘技术]