Quote:
引用第66楼阿鸡米得于2008-12-11 11:35发表的 :
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.
保护阻抗应至少由两个单独的元件组成,这些元件的阻抗在器具的寿命期间内不可能有明显的改变。如果这些元件中的任何一个出现短路或开路,则8.1.4 中规定的值不应被超过
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如果你确定产品只有一个Y电容的话，根据22.42，就不存在所谓的保护阻抗，那么也就没有必要断开。
