山区弱电系统的接地设计与降阻措施探讨

通过对山区弱电系统在接地上普遍存在的土壤电阻率高,可用场地小,地势险峻、地形复杂等因难因素的分析;讨论了山区弱电系统在接地设计和降阻改造的措施。提出了综合地利用自然接地体,在适当地区设置外延接地及沿道路外延降阻方法。通过分析、讨论认为只要充分采取合理、有效的降阻措施,是能够有效降低山区弱电系统的接地电阻,保证弱电系统安全运行。

Research on earth design and resistance reducing measures of a elv systems in a mountainous area

This paper analyzes the ubiquitous problems,such as high soil resistivity,small useable field,severe topography and complex landform,on earthing of elv systems in a mountainous area.On the basis of these,measures of earth design and step-down resistance reconstruction are discussed.The measures are needed and synthetically below:one rod,The grounding of an underwater grounding grid is under a set reservoir,Is this grounding grid riverside-a rationally,Extension and earthing resistance and step-down a roadway are utilized in a solution.