为定位地电台站地埋线缆高阻漏电点位置，根据差分电位法的原理，结合地电台站实际观测情况，设计一种由兆欧表和万用表结合使用的简易装置。根据理论计算和浚县地电场地的实地检验，证明在地埋线缆对地绝缘小于300 kΩ的情况下，使用该方法可以较准确快速地定位地埋线缆漏电点，位置误差在1 m以内。此方法利用一般地电台站监测设备，操作方便、简单，具备推广到受地埋线缆高阻漏电困扰的地电台站的条件。
To locate the high resistance leakage points of the buried cables at the geoelectrical station, a simple device combining a megohmmeter and a multimeter is designed according to the principle of the differential potential method and the actual observation situation of the geoelectrical station. Based on theoretical calculations and on-site experiments at Xunxian Geoelectrical Station, it has been proven that this method can accurately and quickly locate the leakage points of the buried cables when the insulation to the ground of the buried cable is less than 300 kΩ, with a positional error of less than 1 m. This method uses the monitoring equipment in the general geoelectrical station, which is easy to operate and has the conditions to be extended to the geoelectrical station affected by high resistance and leakage of buried cables.
2023,44（6）: 56-61 收稿日期：2023-8-29
DOI：10.3969/j.issn.1003-3246.2023.06.009
基金项目：中国地震局2023年度地震监测、预报、科研三结合课题（项目编号：3JH-202301022）
作者简介：郭少峰（1992—），男，河南滑县人，助理工程师，主要从事台站监测工作。E-mail：15617195032@163.com
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