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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。( c$ s2 o7 Y' @$ z7 o+ c! Y5 B
看PELV的定义,实际上也是回到了1和2的条件。2 Q- v7 K& Y5 e5 [" l
protective extra-low voltage circuit
6 ` q) J: |. ^% u$ \, Kearthed circuit operating at safety extra-low voltage which is separated from other circuits ) w+ D0 D$ X' K" k8 x& J
by basic insulation and protective screening, double insulation or reinforced insulation
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' S1 _ W* m m- @# R& D5 I/ Xby basic insulation and protective screening——基本绝缘+保护性接地
( ]# g, f( a0 v& X* Qby double insulation or reinforced insulation——双重绝缘/加强绝缘- Q" m0 M% G6 W( E
//Protective screening is the separation of circuits from live parts by means of an earthed screen.//
8 W2 S! d' T) K' S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。5 f1 n7 C$ V1 {. x" T4 }
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