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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。
, s& ]/ ^5 N- O! R7 ?& z" ?看PELV的定义,实际上也是回到了1和2的条件。6 H. v8 Z5 [0 D, T* z( x. K
protective extra-low voltage circuit$ x) e8 X8 ]% J3 b% D
earthed circuit operating at safety extra-low voltage which is separated from other circuits 3 N' p, o; L( z' l8 L# D
by basic insulation and protective screening, double insulation or reinforced insulation
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by basic insulation and protective screening——基本绝缘+保护性接地
6 c- k7 W' P: A! a3 ^8 Mby double insulation or reinforced insulation——双重绝缘/加强绝缘, P4 N J0 _7 Z. I9 G# F; I' I
//Protective screening is the separation of circuits from live parts by means of an earthed screen.//
+ Y1 P$ [2 E$ e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。
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