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日本日置HIOKI FT3129-22相位计非接触式! 被测电压的上面进行检相带有磁性可固定于配电盘上CATIII 1000V/CATIV 600V夹住500mm2相当的被测电线即可LED的转动显示,三相电源的相顺一目了然正相时,发出短鸣音;逆相时,发出长鸣音来区分电线的活线检查& 简易检电停止使用15分...
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