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引用第2楼hijummy520于2007-08-23 12:54发表的 :
8 c# q$ s; ?; ?& Q: s1 V! A- V5.2.11.2 Compatibility with residual-current-operated protective devices in case of low3 D, R; k |* h' H% F
leakage current+ H; N2 L/ c* V" |: S: f' d
A residual-current-operated protective device (RCD) with rated fault current Ifn ≤ 30 mA may. x: q! U4 U; g6 n% _; b
be used to provide protection in case of indirect contact and/or supplementary protection in) Z5 J# c5 F5 h
case of direct contact. It is presupposed that the leakage current of the EE(s) according to7 `) M% i2 a6 N0 n' L+ N# e
.......
# H3 ], f1 o }; M. w8 B这里不是讲的漏电流的问题,是讲剩余电流(residual current ,不知台湾是否这样翻译),剩余电流是一种故障电流,是在发生故障时相线和中线的电流不同产生的矢量和。所以为了防止故障产生需要在设备上增加剩余电流保护装置(RCD),漏电流是一种正常的电流。以上的内容是讲,当漏电流很小的情况下,使用额定值小30mA的剩余电流保护器(RCD)也不会产生误动作。具体的翻译请上下文。 |
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