保护接地网预防瓦斯爆炸作用原理及其完好性监视技术  

ACTION PRINCIPLE OF GROUNDED SYSTEMS PREVENTED METHANE GAS FROM EXPLOSION AND GROUND-CHECK MONITORS FOR THE EFFECTIVENESS

作　　者：刘凡非[1] 

机构地区：[1]北京矿冶研究总院,北京100044

出　　处：《矿冶》2007年第2期88-91,共4页Mining And Metallurgy

摘　　要：阐述了煤矿井下供电系统保护接地网的预防瓦斯爆炸功能及作用原理,以及保护接地失效的原因与严重后果。介绍了国内、外不同类型的保护接地监视器的工作原理及性能特点。提出了接地线完好性监视器设计的要求。This paper specifies that the fundamental theory of grounded systems prevented methane gas from explosion. The reason of grounded lose effectiveness and the potential serious danger of a fail - safe grounded are analyzed. The principle and property of domestic and foreign two general classification monitors use in mining are illuminated. The tenets of design ground- check monitor are put frward.

关 键 词：煤矿 供电系统 保护接地 监视器 

分 类 号：TD76[矿业工程—矿井通风与安全]