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和其他电路之间满足双重绝缘、加强绝缘就可以了& A ~; Z" j' t: x
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protective extra-low voltage circuit
0 P3 `9 W4 L( n: F5 p% J5 z8 \+ L# ?earthed circuit operating at safety extra-low voltage which is separated from other circuits
" K5 A0 o, f3 g+ |& N$ Dby basic insulation and protective screening, double insulation or reinforced insulation
: E8 W2 i; ?6 }9 N9 m I* _" vNOTE 1 Protective screening is the separation of circuits from live parts by means of an earthed screen.
1 @8 L% p4 {/ rNOTE 2 A protective extra-low voltage circuit is also known as a PELV circuit. |
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