Earthing can be divided into two forms: connecting earth and connecting conductor substituted for earth.
接地可分为与大地连接、与替代大地的导体连接两种方式。
NOTE This provision includes a protective earthing conductor in the supply cord.
注：此防护措施包括电源线中的保护性导线。
This paper analyses the principle and functions of protective earthing and hanging earthing conductor , and analyses the existing problems in practice.
分析了保护接地和挂接地线的工作原理、作用以及使用过程中存在的问题，值得工矿企业安全用电借鉴。
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