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本帖最后由 leaphile 于 2015-3-4 23:13 编辑 ) ]6 L* ?9 z5 j& y2 {
canghai 发表于 2015-3-4 18:45 3 R9 s7 \9 W# ?& ^7 l& K
screening 和connect是有区别的吧,屏蔽和连接应该还是有差别的。
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protective extra-low voltage circuit
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5 |8 b5 D2 T N* S) Eearthed circuit operating at safety extra-low voltage which is separated from other circuits by 9 M: Q. X3 [5 N, W9 e' h
. l/ w* D- l) s8 U2 p- basic insulation and protective screening
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- reinforced insulation
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9 g w0 N5 S# Q w4 m' u7 B这好像是说PELV电路和其他电路之间的绝缘要求1 p0 d9 r3 O5 `7 m5 {
而不是说PELV 电路不能和earth 连接?3 p( e+ M6 ^6 O1 g1 D& f
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