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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。" n( f' b5 M* t3 N" T
看PELV的定义,实际上也是回到了1和2的条件。7 _* y! Z. y- w3 D5 P
protective extra-low voltage circuit+ L+ h& {. X0 F: K- [, J( g
earthed circuit operating at safety extra-low voltage which is separated from other circuits 0 G5 F" i* p' b: [ y( l5 ?
by basic insulation and protective screening, double insulation or reinforced insulation$ C, z+ D1 y$ c7 }; R
4 g6 Y2 _9 g2 ]- I: \by basic insulation and protective screening——基本绝缘+保护性接地
+ r i2 F0 P' w* z( W$ ^; Gby double insulation or reinforced insulation——双重绝缘/加强绝缘
5 c) F1 I8 F! g# z( ?: G//Protective screening is the separation of circuits from live parts by means of an earthed screen.//% B7 ?: c6 Q6 r8 |
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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