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某NDB台的避雷接地电阻为20欧,则下列( )不正确。
分类: 导航专业业务
发布时间: 2023-11-19 22:59
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某NDB台的避雷接地电阻为20欧,则下列( )不正确。
A.A、该设备防雷性能良好
B.B、该设备防雷接地需改造
C.C、此值偏大
D.D、此值应小于 10欧
正确答案是A
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