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在新版的61558-1中,18.5章节,关于漏电流的测试,
4 q1 D0 D, R0 j0 D9 o! Rif frequencies above 30 kHz are involved, measurement of touch
! y% n1 D5 a1 y1 B: xcurrent shall include measurement with regard to electric burn effects in addition to the4 V( A: z- H3 V8 {+ I
measurements of Figure J.1. For the burn effects, the unweighted r.m.s. value of the touch/ d# R$ z7 Q5 P; s' ]8 K
current is relevant. Unweighted touch current is calculated from the r.m.s. voltage U1,
( W+ D) o$ Z$ \2 k6 X& Ameasured across the 500 Ω resistor of Figure J1 Annex J." ^+ a' T9 |; ?4 G0 l
, ]) J8 Z$ R* |7 J, Q: o. k) \也就是说如果开关电源的频率超过30KHz的话,U1就要被测试,还是RMS值, 问题是限值是多少?) D4 |$ A; D% h& x. g2 D( I
请各位大侠帮助。 |
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