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Try to answer this这两个“接地”是不是概念/功能不一样? 他们的区别是什么?
" F1 E) ~ Z- ?) V2 c" b: R6 a- gFrom 60950-1:1.2.13.11 PROTECTIVE BONDING CONDUCTOR: conductor in the equipment, or a combination of
- L4 U) y5 a# @3 g) u! |" Gconductive parts in the equipment, connecting a main protective earthing terminal to a part of the equipment that is required to be earthed for safety purposes
$ Z- b G% G, O3 z: _2线属于设备内部部件保护接地,3是设备主接地点。
; w* G% n3 u1 A4 w+ D
6 r+ O, N; s$ J; m3 C7 c+ u"2"线是通常说的黄绿线吗? 0 _7 h* @7 K- s$ o+ W
是,3线也是) O# E" t) P" S1 H9 ^0 T x# k+ i1 `
2,3的不同是:内部保护接地通过接地连续性测试即可,但主接地线一定要满足标准中的线径要求。 |
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