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本帖最后由 安工 于 2016-5-31 18:53 编辑 " Z* c. q" L" D
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如以下条款摘录于UL 60335-1, ( l; d. b+ B0 z2 M! h
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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.( q! ~7 W6 j* C- u+ A6 M2 q' E
3.4.1DV DR Modification to replace the definition with the following:
; ^! K8 q8 h9 U& \5 I6 o 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?2 {0 ~3 r8 E4 s3 d
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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