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单相电表正确接法
更新时间: 2021-05-12 03:11:55  

1、将电表正放,打开电表尾盖,从左到右,依次是①火线输入,②火线输出,③和④是地线输入。③和④之间接一根线电即可。

2、火线和零线如果接反了就不能用了。因为表中③和④在表内是接在一起的,这才有了上面所说的③和④接一根线,若真的是火线从③进,从④出,由于电表线圈有内阻,则电流就不会走电表内部,故电表就不会走数。

关键词: 电表 正确

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