漏电流测试接地探讨

Discussion of Leakage Current Measurement Earthing

从GB9706.1-2007等国家标准规定的漏电流测试要求,叙述了目前漏电流测试隔离电源接地存在的问题,针对出现的测试精度和测试人员安全问题,分析了几种漏电流测试隔离电源的接地方式及可能出现的漏电流测试值不同的原因,对照现行相关的国家标准测试规定,提出了解决的具体测试方法,供探讨。

According to the measurement requirements of leakage current from the national standards such as Standard GB9706.1- 2007, this article describes the existing problems of isolated power earthing during leakage current measurement. Aiming at improving the measurement accuracy and protecting the security of testing engineers, we analyses several methods for isolated power earthing during the leakage current measurement, and various reasons of possible differences among test values of leakage current. Based on the existing national standards, this article proposes alternative testing methods for discussion.