|
开关电源后端输出应该是SELV吧,接地变成PELV) H2 X3 `/ h% d# v7 q
' `8 ]% r8 O1 ]; z! N* M
3.4.4 protective extra-low voltage circuit
) I9 y# `+ j6 y" L( F4 p- k/ D; }) q3 g9 d& x
earthed circuit operating at safety extra-low voltage which is separated from other circuits by |- U6 l w* g: ~7 ^
/ y/ L+ v) Z: o
- basic insulation and protective screening. t. @; u$ i# y% H3 {4 n; z; S
- double insulation or 0 i v& R( W, u, w% D% D |* ^
- reinforced insulation
3 O* S+ |! d3 F s- ]' j% Y6 ^3 l) d4 V, E7 Q( H6 [9 V
满足上面条件应该是可以的 |
|