|
这个问题不用想复杂了。简单来看,对于60335,可以碰到的部件要么是,1. I类器具的基本绝缘+保护接地;2. II类结构中的双重绝缘/加强绝缘;3. SELV和PELV。4 Y" B/ x- I+ s
看PELV的定义,实际上也是回到了1和2的条件。
( N; D1 W* {* f) T1 m; Sprotective extra-low voltage circuit7 W6 }2 v9 a& Y& H
earthed circuit operating at safety extra-low voltage which is separated from other circuits
' N' c) Z2 E6 [" o- e( k7 Gby basic insulation and protective screening, double insulation or reinforced insulation' q# |6 |" Z; c+ \7 g$ m
% E! q# J1 s U! J" Aby basic insulation and protective screening——基本绝缘+保护性接地( x, b( l+ |/ @: I
by double insulation or reinforced insulation——双重绝缘/加强绝缘4 W' V/ f0 h6 z, Y& z
//Protective screening is the separation of circuits from live parts by means of an earthed screen.//
0 w3 `$ N/ Z3 \0 {' i$ w所以,这里看结构时,还是回到最基本的要求,看每个次级输出电路(传感器...)和初级电路之间是否满足上面的要求即可。
! h0 x/ A2 z! O( T |
评分
-
查看全部评分
|