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本帖最后由 安工 于 2016-5-31 18:53 编辑
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0 ]( m" q" @. m& R# H如以下条款摘录于UL 60335-1, $ A& k( M1 c3 {3 X) S' k/ y+ r
/ M7 a: h7 k2 X9 ~ K0 _0 _3.4.1 EXTRA-LOW VOLTAGE: Voltage supplied from a source within the appliance that does not exceed 50 V between conductors and between conductors and earth when the appliance is supplied at RATED VOLTAGE.
) z: Z" r$ q" u/ ~2 E8 |/ i 3.4.1DV DR Modification to replace the definition with the following:/ Y# O2 o: X5 g" M( ]/ c+ A7 U9 z
EXTRA-LOW VOLTAGE: Voltage that does not exceed 30 V rms or 42,4 V peak ac or dc.9 q J) n4 e( v$ {4 ?# K, M% K; g( v
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% g' v7 Y( G6 Y$ o以上DV, DR的条款到底是美国的差异还是加拿大的差异?8 U- Y3 J; C" a5 s* ]
还有D1, D2, DC, DE, 看了标准的定义,感觉比较空泛,没有真正领悟。 |
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