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引用第12楼hli168于2007-05-16 21:09发表的 :
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我听认证公司的工程师说一台机器只有一个带圆圈的,其他接地的不要带圆圈,带圆圈的就是电源线进来处的接地。[s:3] @, @% g( a5 [- Q8 c) ]
5017 Earth (ground)
/ b3 J, }8 _; W8 H( M# Z% `: E" pTo identify an earth (ground) terminal in cases where , O/ V) |1 y& X
neither the symbol 5018 nor 5019 is explicitly required. / P0 U8 w @4 g: M. _
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5019 Protective earth (ground)
- \) S9 i. W" x j [( B0 `To identify any terminal which is intended for connection to4 L/ j& f9 j6 ~4 p/ m8 @( Q
an external conductor for protection against electric shock
1 q2 t- H( ?9 _( k2 pin case of a fault, or the terminal of a protective earth
' m! } L: q9 D# U9 @9 M' K/ P(ground) electrode.
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. s" U% x* R- Y7 \我是想明白5019这个地线贴纸的粘贴位置. |
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