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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。. D1 Z" {+ e/ k) c3 R
看PELV的定义,实际上也是回到了1和2的条件。
; u M0 S+ T2 Q( C1 eprotective extra-low voltage circuit
/ p/ {; H5 B6 ]; G( X, G: Z+ Searthed circuit operating at safety extra-low voltage which is separated from other circuits & w! @& e+ @4 W4 E4 m# {
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
9 a0 U5 z6 o+ D0 w" B. f: m1 ?8 Lby double insulation or reinforced insulation——双重绝缘/加强绝缘
/ A) @1 f3 e8 h8 {# d0 p" l" Z//Protective screening is the separation of circuits from live parts by means of an earthed screen.//0 N* P- @" d; T, v2 N* _7 m
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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