摘要
由照明灯杆发展而来的综合杆作为道路杆上设施搭载平台,搭载监控设施、信号灯和交通标志等。杆体与人接触的几率远远高于照明灯杆,综合杆配电线路的故障防护必须受到重视。探讨TN-S系统和TT系统综合杆配电线路的故障防护方案,对配电电缆规格、保护电器参数和配电线路长度的选择提出建议,确保综合杆的正常运行及人身安全。实例分析为综合杆配电设计提供了量化依据。
The composite pole evolved from the lighting pole,as a platform supporting road pole facilities,carries monitoring facilities,signal lights,traffic signs,etc.and has a much higher probability of contact with human body than the lighting pole,so that fault protection for distribution lines using composite poles must be paid attention to.Fault protection schemes for composite pole distribution lines using TN-S system and TT system were discussed,and appropriate suggestions were made about the selection of distribution cable specifications,protective device parameters and distribution line length,so as to ensure normal operation of the composite pole and personal safety.Analysis of examples provided a quantitative basis for the design of composite pole distribution lines.
作者
袁超
Yuan Chao(Shanghai Integrated Urban Management Center, Shanghai 200023, China)
出处
《电气自动化》
2021年第2期9-10,37,共3页
Electrical Automation
