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发表于 2007-5-17 08:27
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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]
4 ], O, V0 B1 M6 Z& Q9 T3 t5 }5017 Earth (ground)
5 _5 B% }, I1 W8 W6 nTo identify an earth (ground) terminal in cases where / m" _' b2 u+ G& x# p
neither the symbol 5018 nor 5019 is explicitly required. ' K3 l! C' h2 l8 r
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5019 Protective earth (ground)/ g2 w8 x N! N/ A3 B
To identify any terminal which is intended for connection to
: w f4 F# J% Oan external conductor for protection against electric shock
q. X3 O, U" s0 n$ d) V8 Bin case of a fault, or the terminal of a protective earth
5 X) E2 I. \8 n+ p(ground) electrode.
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我是想明白5019这个地线贴纸的粘贴位置. |
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