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22.7 A switch or other device controlling one or more elements of an appliance intended for permanent connection to the power supply shall be of such construction that opening the switch will disconnect all of the ungrounded conductors of the supply circuit, unless there will be no live parts exposed to unintentional contact when the switch is open or unless the fact that such parts are live parts is apparent.0 B# o; i) o1 _
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22.7 开关或者其他控制装置控制永久性连接电源器具的一个或者多个元件,开关应当完全断开所有非接地电路连接,除非开关断开时,非故意接触到情况下,没有带电部件暴露,或者这些部件非常明显是带电部件。- L) ^" k! X2 H0 t
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简单点说就是永久性连接器具要求全极断开或者非全极断开应该没有带电部件。8 {$ L7 _8 u5 x, G* W- O( y; }
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