|
The following situations are exempt from the above requirements:
* i7 ?. _* n, `" p5 _) t – 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) ; ' n1 S, T" @9 C$ q
本人理解如下:! C2 Y7 w+ Y8 U$ O+ Q5 S- y& N
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。6 L5 q( {0 [" }4 }; v! M1 A
– 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.;
: W% }# `0 h* C4 A1 L-->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。
2 i4 o: R5 P( J% L" X5 [9 y6 o, D |
|