电压保护水平(voltage protection level):表征一个SPD限制其两端电压的特性参数.这个电压数值不小于浪涌电压限制的最大实测值，是由生产商确定的。
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A voltage regulator (10) having an undervoltage protection circuit 11 and a method for protecting against an output voltage out being less than a predetermined level.
一种具有欠电压保护电路(11)的电压调节器(10)和一种用于防范输出电压小于预定的电平的方法。
A voltage regulator having an overload protection circuit and a method for protecting against an output voltage being less than a predetermined level.
一种具有过载保护电路的电压调节器和用于防护输出电压大于预定的电平的方法。
Ground-fault protection of low-voltage systems is a considerable problem because of the presence and nature of low-level arcing ground faults.
接地故障的低电压系统的保护是因为存在和电弧接地故障的低级别的性质相当严重的问题。
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