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The following situations are exempt from the above requirements:
, u0 ~9 \* q* \$ F, x2 Q; ^ – where terminals for the connection of a supply are provided on a component (for example, a terminal block) or subassembly (for example, a power supply unit), the symbol(没圈的接地符号) is permitted for the protective earthing terminal instead of(有圈的接地符号) ; - Z7 U6 Z( ?' |
本人理解如下:
) w) ]4 \* [7 H# x1 w7 y5 l$ Y如果设备的端子连接的是一个零件(例如一个终端模块)或者组件(比如一个电源),有圈的接地符号可以代替没圈的接地符号。 w, Y; @* B+ t7 D" X( z
– on subassemblies or components, the symbol(有圈的接地符号) is permitted in place of the symbol(没圈的接地符号)provided that it does not give rise to confusion.;: H! ~( ]" z5 G" L6 ~" N+ f
-->组件或者零件间的连接,如果用没圈的接地符号代替没圈的接地符号不会引起误解,则允许替代。
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