|
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。6 u, a `/ r, M4 {9 i; Z
看PELV的定义,实际上也是回到了1和2的条件。6 v: s8 s3 N, g
protective extra-low voltage circuit# o& B+ d; l9 t9 r* g
earthed circuit operating at safety extra-low voltage which is separated from other circuits
. t* j$ K' g1 x$ P' K' ~by basic insulation and protective screening, double insulation or reinforced insulation
0 |3 @; R+ ^! }9 A0 P: ]5 p
% J, {% \/ a H' W, k2 nby basic insulation and protective screening——基本绝缘+保护性接地! _( `* e3 a. W6 E2 ~
by double insulation or reinforced insulation——双重绝缘/加强绝缘
6 d% I. z$ E# ]0 v6 A, I6 r @+ l$ d//Protective screening is the separation of circuits from live parts by means of an earthed screen.//9 e/ |: U1 p$ f7 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。
+ r2 O% ^% `5 s0 c6 k% j |
评分
-
查看全部评分
|