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引用第12楼hli168于2007-05-16 21:09发表的 :
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% |) ]3 p2 e+ o9 @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] ( B8 R! d1 A! F: p- y; s
5017 Earth (ground) $ L; K3 L8 R7 O f
To identify an earth (ground) terminal in cases where # V$ M* ]5 h" h7 T5 v- W6 \5 ?/ E* V
neither the symbol 5018 nor 5019 is explicitly required. * u" u5 D7 g3 m S& l# p
) w* u! \% A. H# l) G, [5019 Protective earth (ground)
9 o- ~- |; h) Y/ I3 e1 kTo identify any terminal which is intended for connection to/ W5 O& G, w' u+ A9 o! N: B' k' x
an external conductor for protection against electric shock# M7 C) P* Z+ H' O
in case of a fault, or the terminal of a protective earth
# N( F3 R `) S3 {% a2 `* Q(ground) electrode.& ]2 ?3 T' Z K. o; s- R7 J8 h
# b' [. T& Z/ l+ ]
我是想明白5019这个地线贴纸的粘贴位置. |
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