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cwsdlcyhy
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36樓  發(fā)表于: 2012-01-02 05:56
里面每一相都有一組過(guò)流線(xiàn)圈，用來(lái)檢測過(guò)電流。另我們要分清過(guò)載與短路的區別，短路是瞬間大電流，查一下斷路器手冊對短路電流有詳細的要求。

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