摘要
广西区内大部分110 kV送电线路工程主要采用放射形接地装置,在一些土壤电阻率高的地区通过添加降阻剂来辅助接地,仅在水田和部分居民区采用闭合环形接地装置。为了解决放射形接地装置占地面积过大导致施工容易受阻、降阻剂腐蚀接地体容易导致安全隐患的问题,笔者对广西区内的一些线路工程采用的杆塔接地装置进行分析,指出了各种杆塔接地装置存在的一些利弊。建议应更有效地应用接地模块以及闭合环形接地装置,以更好地实现110 kV送电线路安全投产、运行可靠、维护方便。
Most 1 lOkV transmission lines in Guangxi mainly adopt radial grounding device and assist by addingresistance reducing agent in high soil resistivity area, however, the closed annular grounding device is used in the paddy fields and residential areas. The author points out the advantages and disadvantages of grounding devicesior kinds. of poles and towers based on the analysis on grounding devices for poles and towers for transmission projects m t,uangxi, so as to solve the construction blockage problems due to large land occupation of radial ounding device and eliminate the hidden risks due to grounding body corrosion by resistance reducing agent. It suggested to use more effective grounding module or tile closed-annular grounding device so as to achieve safe, reliable operation and convenient maintenance of 1 lOkV transmission lines.
出处
《红水河》
2012年第6期89-92,141,共5页
Hongshui River
关键词
接地装置
送电线路
电阻率
grounding device
transmission line
resistivity
