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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。
% `8 o& |- C9 p N6 u; M看PELV的定义,实际上也是回到了1和2的条件。
- X3 A: k1 e" A, z# Eprotective extra-low voltage circuit
' v7 H' w& W1 D5 F# S5 zearthed circuit operating at safety extra-low voltage which is separated from other circuits 0 j+ C/ K0 v; Z1 h
by basic insulation and protective screening, double insulation or reinforced insulation& u+ ? R4 N6 U% ^' n9 B* c* J( M3 C
/ C# \9 P% i( D/ F: y K
by basic insulation and protective screening——基本绝缘+保护性接地
" Y+ G, Y% x% l3 \+ ~+ l+ x3 vby double insulation or reinforced insulation——双重绝缘/加强绝缘& H8 z d2 C. ?2 ~0 h- G p) A
//Protective screening is the separation of circuits from live parts by means of an earthed screen.//
! s4 R9 L: R0 a, M: A- `6 u* I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。( X' U- d! ?$ G, T' I' A, c
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