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引用第2楼hijummy520于2007-08-23 12:54发表的 :0 t) ~; B4 K. l9 `* K+ m4 P
5.2.11.2 Compatibility with residual-current-operated protective devices in case of low6 u$ ?- G& y& a8 \) D
leakage current7 A J, U* Q0 `' r
A residual-current-operated protective device (RCD) with rated fault current Ifn ≤ 30 mA may, c! Z, G: ]' K8 a4 h& o, N: }
be used to provide protection in case of indirect contact and/or supplementary protection in
. @- W% w. F$ j( s7 ?. l% wcase of direct contact. It is presupposed that the leakage current of the EE(s) according to+ @+ }9 ?( h+ \( r9 O. k4 g
.......
! X$ u8 L5 s/ y7 w# V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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