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The following situations are exempt from the above requirements:: j S0 ^! R# Z5 v
– 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) ; # F; a% @" r# R) \
本人理解如下:
; D% |- N0 u7 e" j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。
+ E1 G4 U5 d0 J1 C6 w. ~ – 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.;% v( J/ |9 y6 e9 K8 \" c1 o. | p9 _, i5 h
-->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。4 B' A, g- u- H. v
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