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本帖最后由 安工 于 2016-5-31 18:53 编辑 - o+ [5 t' i; |. t2 y$ h
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如以下条款摘录于UL 60335-1, 0 t5 s8 ~ T, M' Y9 A" ^6 ~6 P
- Z. \4 O- } |, z- p9 f3.4.1 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.
' ~4 S( a* P! x$ J! i4 m) e 3.4.1DV DR Modification to replace the definition with the following:; k1 P( M; k4 `2 ?0 r/ I3 y
EXTRA-LOW VOLTAGE: Voltage that does not exceed 30 V rms or 42,4 V peak ac or dc.8 Q) ~7 l) _! J" a2 F4 k. A
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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?
: y+ h5 y, Z- K @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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