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发表于 2013-6-19 14:33:04
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老诚一向推崇NEC(尽管一不高兴也“脚踢”过),34# 治学以诚 自己给出了定义(34楼给出的NEC中,过载与过流的定义。我认为,胜于IEC许多了。
治学以诚 发表于 2013-6-19 13:38 ):
34# 治学以诚
Overcurrent. Any current in excess of the rated current of equipment or the ampacity of a conductor. It may result from overload, short circuit, or ground fault. |
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