摘要
接地阻抗是衡量接地系统有效性和安全性的关键性参数之一,准确测量接地阻抗值对于接地网安全性评价具有非常重要的意义。论文通过电位降法在地网接地阻抗检测工作实际应运情况,根据电位降法的检测原理,对接地装置对地零电位区域的确定过程进行研究和探讨,并对现行的电位降法提出改进,使得接地装置对地零电位区域的确定更加方便和快捷,以提高影响检测数据的准确性。
Grounding impedance is one of the key parameters to measure the effectiveness and safety of grounding system. Accurate measurement of grounding impedance value is of great significance for grounding network security evaluation. This paper studies and discusses the determination process of ground zero potential area according to the detection principle of fall-of-potential method and the actual operation of fall-of-potential method in grounding impedance detection of grounding grid,and proposes to improve the current fall-of-potential method so as to make the determination of zero potential area of grounding device more convenient and fast and improve the accuracy of the detection data.
作者
余振邦
YU Zhen-bang(Qinghai Key Laboratory of Disaster PreventionandMitigation（HaixiMeteorologicalBureau）,Xi＇ ning 817000,China)
出处
《工程建设与设计》
2018年第17期84-86,共3页
Construction & Design for Engineering
关键词
接地装置
电位降法
零电位
影响因素
earthing device
fall-of-potential method
zero potential
influencing factor
