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addwin 发表于 2013-9-24 18:27
* N$ o3 |+ _2 F% e! Z% k- r请查看CSA 250.13 definitions。但我也很疑惑。因为加拿大电工法规CEC里面明确是42.4VDC的。
8 z6 ~. R' P4 S" ?) K) y求原文出处!! LVLE规定42.4Vdc. 是否为如下条款适用?
2 R/ X. U% ?& f( v/ F! \3 R$ XPer Rule 16-222(1) of the Canadian Electrical Code, Part I, ELV Class 2 circuits may be accessible to the operator, while Class 2 circuits (e.g., 60 V dc) are not to be accessible for touch. Therefore the voltage on exposed terminal outside the lighting products cannot exceed 42.4 V peak or dc. An output form devices complying with Class 2, LVLE and SELV requirements are deemed in compliance with Rule 16-222(1). |
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