Quote:
引用第12楼hli168于2007-05-16 21:09发表的 :
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。
5017 Earth (ground)
To identify an earth (ground) terminal in cases where
neither the symbol 5018 nor 5019 is explicitly required.
5019 Protective earth (ground)
To identify any terminal which is intended for connection to
an external conductor for protection against electric shock
in case of a fault, or the terminal of a protective earth
(ground) electrode.
我是想明白5019这个地线贴纸的粘贴位置.