原油储罐防雷接地装置接地电阻检测分析

Detection and Analysis of Grounding Resistance in Oil Storage Lightning Proof Grounding Device Structure

对原油储罐防雷接地装置的结构进行了分析,得到了原油储罐多组接地体与接地极连接圆以及储罐本体三者构成并行回路的结论。通过分析4102A型接地电阻测试仪以及钳形电阻表的工作原理、特点并结合储罐接地装置的结构,探讨了4102A型接地电阻测试仪和钳形电阻表在原油储罐接地电阻检测中的优点和不足,得到了检测原油储罐接地电阻的合理方法。

The structure of lightning grounding de^ice was analyzed for crude oil storage tank to get the conclusion that groups of grounding body of crude oil storage tank, connecting round of lightning conductor and storage tank form collectively a parallel circuit. Analysis was made for the operating principle and characters of 4102A grounding resistance tester and clamp ampere re sistance meter, by combining the structure of lightning grounding device for storage tank to study the advantages and disadvantages o{ the two instruments in the lightning grounding testing for crude oil storage tank, and to obtain the rational method of lightning grounding testing for crude oil storage tank.