摘要
针对防雷检测工作中经常出现的接地电阻值读数值不稳定、偏大或偏小,甚至出现检测值为负值(即偏离真值)情况的现状,从接地电阻测试仪原理出发,阐述了防雷装置检测的方法;归纳总结了造成防雷装置接地电阻测量值偏离真值的八大常见原因,并分别提出了避免或减小接地电阻值偏离真值的方法。
In view of the lightening protection examination, the earth resistance value appears frequently unstable, large or small, even appears minus examination value. These are deviation from true value. Base on the earth resistance tester principle, the author first elaborated the lightning protection device examination method, then summarized the eight common causes that deviation often occurred and last proposed methods to avoid or reduce the earth resistance value test deviation.
出处
《中国测试技术》
2006年第3期75-77,共3页
CHINA MEASUREMENT & TESTING TECHNOLOGY
关键词
防雷检测
接地电阻
测试原理
偏离真值原因
避免或减小
Lightening protection examination
Earth resistance
Test principle
Deviation true value reason
Avoids or reduces
