冯志文（陕西省建筑设计研究院有限责任公司，西安市 710003）

Re-discussion on Distribution System of Street Lamp and 5-wire T T System

Li Shunkang（Shanghai Nuclear Engineering Research & Design Institute，Shanghai 200233，China）

Feng Zhiwen（Shaanxi Architectural Design & Research Institute Co.，Ltd.，Xi’an 710003，China）

 

    Abstract Outdoor street lamp project is associated directly with personnel safety of the general public，therefore，it is necessary to determine whether TN - S or T T system should be adopted as per different situation， and to take corresponding technical measures.

    Key words Street lamp grounding TN - S system T T system RCD Shared grounding Separate grounding Grounding fault at high ?鄄 voltage side Phase conductor grounding fault at low ?鄄 voltage side

 

    摘 要 室外路灯工程直接关乎民众的人身安全，需根据具体情况确定采用 TN - S系统或是T T系统，并采取相应的技术措施。

    关键词 路灯接地 TN - S系统 T T系统 RCD 共用接地 单独接地 高压侧接地故障 低压侧相线接大地故障