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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。) e5 y. P9 X/ T- ]4 i7 | s0 X" g
看PELV的定义,实际上也是回到了1和2的条件。
8 h6 w; S8 P( x- k8 ^* y6 Y! [8 aprotective extra-low voltage circuit9 Q. v+ T: D; W! D
earthed circuit operating at safety extra-low voltage which is separated from other circuits
- y- Y: y2 a- U- i+ b& ]by basic insulation and protective screening, double insulation or reinforced insulation$ _ N* [: T; x3 h( X
3 v/ X; @" v; x4 Tby basic insulation and protective screening——基本绝缘+保护性接地
O8 `! n& Z5 f: Q8 u1 dby double insulation or reinforced insulation——双重绝缘/加强绝缘0 W2 x$ ` ?' V
//Protective screening is the separation of circuits from live parts by means of an earthed screen.//. c/ T1 s M0 c+ J0 Q
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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