摘要
我国电气规范中对接地电阻值规定有许多具体要求,但国际电工标准很少提这类要求,而是强调等电位联结系统阻抗的降低。就接地和等电位联结的作用分析这一问题,笔者认为在满足等电位联结条件下不必耗费人力物力为共用接地强求不大于1Ω的接地电阻值。
There are many detail requirements for earthing resistance value in our country＇s electrical code,but seldom similar regulations required in IEC code,which emphasises on lowing impedance of equipotential bonding system.The paper analyzes function of earthing and equipotential bonding,and the author thinks it is not necessary to cost labour and material for united earthing resistance value no more than 1Ω in equipotential bonding condition.
出处
《建筑电气》
2006年第1期4-6,共3页
Building Electricity
关键词
接地
共用接地
等电位联结
接地电阻
防雷
Earthing United earthing Equipotential bonding Earthing resistance Protectionagainst lightning
