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引用第12楼hli168于2007-05-16 21:09发表的 :2 n3 M* b" W$ M& i: T0 Z. g4 S
; h# J s" @4 s% M/ P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 B; y4 i P9 x# o, U5017 Earth (ground) ( {$ T* o0 Z% @8 U: F% R% V# V
To identify an earth (ground) terminal in cases where 2 u# \" W+ l; t2 c/ V
neither the symbol 5018 nor 5019 is explicitly required.
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3 Y" p: w% J8 I/ A1 [5019 Protective earth (ground)
; y! p& S/ w$ `5 @# b" z3 OTo identify any terminal which is intended for connection to* s! ~9 Z6 F0 l( S# ?$ w5 f9 h
an external conductor for protection against electric shock; d& u7 [7 d. \) J; J2 G, ?
in case of a fault, or the terminal of a protective earth/ ]* h& T) h+ p
(ground) electrode.9 U. L% h v: [
! Z# X2 J! Y$ w( x
我是想明白5019这个地线贴纸的粘贴位置. |
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