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三相电颜色代表什么_家居日记
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三相电颜色代表什么

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三相电颜色代表什么 通常规定，三相电颜色为黄、绿、红，分别为A、B、C三相，蓝色是零线，黄绿相间的是接地线，接线过程中黄绿红接火线，蓝色接零线，黄绿相间的线接在


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