阀室仪表通过固态去耦合器接地的分析

Analysis of Gas Valve Chamber Instrument Grounded by Solid-state Decoupler

结合实际案例提出燃气阀室阴极保护电流流失的问题,介绍国内外标准推荐做法,阐述固态去耦合器的工作原理以及固态去耦合器与电气设施防雷接地连接推荐做法。通过阀室漏电率试验,分析阀室内仪表通过固态去耦合器接地而防止阴极保护电流流失的效果。

Combined with a practical case,the problem of cathodic protection current loss in gas valve chambers is proposed.The recommended practices of domestic and foreign standards are introduced.The working principle of solid-state decoupler and the recommended practices for connecting solid-state decoupler to lightning protection grounding of electrical facilities are explained.Through the leakage rate test in the valve chamber,the effect of preventing cathodic protection current loss by grounding the instrument in the valve chamber through solid-state decoupler is analyzed.