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ning244687
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樓主  發(fā)表于: 2017-09-25 08:51
380V電壓  用電器20KW左右   當出現短路或者漏電后需要切斷電路，  怎么設計保護電路，希望熱心人士幫助。  
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cjm1234
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1樓  發(fā)表于: 2017-09-25 12:26
用50A的漏電斷路器

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