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开关电源后端输出应该是SELV吧,接地变成PELV
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( v( C) F$ B. f, ^& k+ W, u. A3.4.4 protective extra-low voltage circuit
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earthed circuit operating at safety extra-low voltage which is separated from other circuits by
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8 {. X2 d, H2 \" R% U- basic insulation and protective screening8 a- L; ]8 ~1 P) S- D
- double insulation or
3 d, P+ b0 \9 P) h4 ^3 v- reinforced insulation/ }+ t! z7 h5 Y& V: E" ~
2 m: O) R2 P+ H( j/ a
满足上面条件应该是可以的 |
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