This article goes into details on the principle and assemblage of earthing, zeroing and leakage prevention with the view of ensuring power supply safety and hindering electric shock accidents.
本文着重对工业供电系统电气设备的接地、接零及漏电保护的原理与安装方法等作了详尽的介绍，旨在确保用电安全，防止触电事故的发生。
This paper introduces the types of electric shock, its harm to the body and the technology of prevention and control.
本文着重介绍了电击的种类、对人体的危害及防控技术。
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