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你好!请教一下,钳形电流表上的ncv档是测量什么的?谢谢!

chyu5684 2017-11-21 23:13:03 2222  浏览
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  • supermanhzq 2017-11-22 20:02:27
    “NCV”含义为“非接触电压检测”,用来判断被测对象是否带电,如一根外皮有绝缘层的导线。下面是一款万用表的说明书: 一、NCV非接触测量电压 1)量程开关在任何位置均可进行“NCV”检测。 2)“NCV”含义为“非接触电压检测”无须使用表笔。 3)按住NCV检测键,仪表液晶屏停止显示,并发出声光提示,表明进入NCV检测状态。 4)按住NCV检测键,用仪表顶部靠近检测对象,如果存在 30-1000V 交流电压,仪表会发连续声响,同时点亮红色警示灯。

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