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addwin 发表于 2013-9-24 18:27
0 Q* I4 Q# |& N p; }- `6 n& z! Z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。 0 C- d; d& w4 y6 ?' t7 Y
求原文出处!! LVLE规定42.4Vdc. 是否为如下条款适用?
/ i& o4 q7 p; H% s) l! R, x% r1 _Per 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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