Refer to 7790-J for seperrated fixed earthing conductor size .
接地导体部件安装尺寸参考图 7790-J。
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。
NOTE 2 The earthing conductor in a supply cord is not considered to be an equipotential bonding conductor.
注2说明连接电源线接地线的端子还是可以连接其它接地线的。
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