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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?5 _! ^# A M) C9 o% I
From 60950-1:1.2.13.11 PROTECTIVE BONDING CONDUCTOR: conductor in the equipment, or a combination of
. O8 _5 C, Y' y1 C) Uconductive 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. C& L" z: L7 H8 E
2线属于设备内部部件保护接地,3是设备主接地点。
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' ]7 l' ^( w3 x( w"2"线是通常说的黄绿线吗?
- j/ ?: ^7 X- Y# b' v' t5 F4 L* }. s是,3线也是
; D" T0 i. L1 x$ Q2,3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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