标题: IEC60335中跨接初次级用Y电容 [打印本页] 作者: 蓝色妖姬 时间: 2011-12-29 23:38 标题: IEC60335中跨接初次级用Y电容 各位大侠，在IEC60335中跨接初次级用一个Y1电容行不？看标准理解来是要用两个才行，但有没有其它的办法绕开，用一个Y1电容。或在标准的哪个地方有没有其它的定义？希望各位知道的告知，万分感谢！急！！！
附标准章节如下：
22.42 Protective impedance shall consist of at least two separate components whose impedance is unlikely to change significantly during the lifetime of the appliance. If any one of the components is short-circuited or open-circuited the values specified in 8.1.4 shall not be exceeded.
NOTE Resistors complying with test a) of subclause 14.1 of IEC 60065 and class Y capacitors complying with IEC 60384-14 are considered to be components having a sufficiently stable impedance.
Compliance is checked by inspection and by measurement.作者: KFCJF 时间: 2011-12-29 23:39
不行的，必须要用两个。
使用两个Y电容主要是为了防止出现单个电容失效的异常情况！作者: 蓝色妖姬 时间: 2011-12-29 23:39
可是如果是Y1电容是不考虑故障的呀？作者: 你所额抵抗 时间: 2011-12-29 23:39
无论Y1或者Y2都必须有2个作者: gamy 时间: 2011-12-29 23:40