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本帖最后由 安工 于 2016-5-31 18:53 编辑 # Z4 I- \( L+ M% a% } x& A7 S2 y
" M- q3 `3 O( o9 _- p; ?. z% j如以下条款摘录于UL 60335-1, ( [. b2 c7 H4 T' @$ T. j
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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.
+ P7 J( D. k T% C: ^" ] 3.4.1DV DR Modification to replace the definition with the following:/ N, X: j9 [, |; x/ ~( M
EXTRA-LOW VOLTAGE: Voltage that does not exceed 30 V rms or 42,4 V peak ac or dc.
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以上DV, DR的条款到底是美国的差异还是加拿大的差异?: O7 [; Q4 o- L. ?( {0 {0 A
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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