|
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。$ N- |1 g9 |) y
看PELV的定义,实际上也是回到了1和2的条件。9 q, b$ H' x# a! w
protective extra-low voltage circuit
$ P# O+ ~ I" Z8 C& X1 \! l, w6 mearthed circuit operating at safety extra-low voltage which is separated from other circuits
! H! C% D, `3 F; ~: _by basic insulation and protective screening, double insulation or reinforced insulation* o8 ^# k( C7 N
' z5 h: s2 W3 ^2 P/ F: s1 K3 D
by basic insulation and protective screening——基本绝缘+保护性接地2 x: W- X3 Z' k+ k! |, J
by double insulation or reinforced insulation——双重绝缘/加强绝缘4 x# y) x4 i, Y, ?
//Protective screening is the separation of circuits from live parts by means of an earthed screen.//
! \* l$ X' |, p) b$ f6 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。
* n' @7 P$ D+ Y) L. u7 a: q |
评分
-
查看全部评分
|