弱弱的问下,筒灯的输入都超120V了,电源能是SELV吗?
超过120VDC肯定不算,但是没超过就算SELV,只不过比60VDC的要求更严苛,爬电距离,电气间隙有要求的 直流的PEAK值就是RMS低压值。直接用RMS的距离就可以了。 60598-1上面有详细的解释!
b For creepage distances, the equivalent d.c. voltage is equal to the r.m.s. value of the sinusoidal a.c.
voltage.
c For clearances, the equivalent d.c. voltage is equal to the peak of the a.c. voltage. 电气间隙DC值可以除以sqrt 2变成RMS值!
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