三插头接线l、n的方法如下:
材料:电线
工具:三线插座
1、确定电流的大小选择合适的三相电源线。
![](https://video.ask-data.xyz/img.php?b=https://iknow-pic.cdn.bcebos.com/4a36acaf2edda3cc7393dab913e93901213f9237?x-bce-process=image%2Fresize%2Cm_lfit%2Cw_600%2Ch_800%2Climit_1%2Fquality%2Cq_85%2Fformat%2Cf_auto)
2、观察插头,左下角是零线(N线),右下角是相线(L线),即左零右火,上面是保护地线,即GND。
![](https://video.ask-data.xyz/img.php?b=https://iknow-pic.cdn.bcebos.com/f11f3a292df5e0feb61aeb984e6034a85edf722c?x-bce-process=image%2Fresize%2Cm_lfit%2Cw_600%2Ch_800%2Climit_1%2Fquality%2Cq_85%2Fformat%2Cf_auto)
3、插头另一端为三根线,通过线的颜色来分辨火线、零线、地线,我国国家标准:棕色为火线L、蓝色为零线N、黄绿色为地线E。
![](https://video.ask-data.xyz/img.php?b=https://iknow-pic.cdn.bcebos.com/3bf33a87e950352a301c47914143fbf2b2118b2e?x-bce-process=image%2Fresize%2Cm_lfit%2Cw_600%2Ch_800%2Climit_1%2Fquality%2Cq_85%2Fformat%2Cf_auto)
4、三孔插座上面孔为接地线,左零线(N)右火线(L)。
三线插头:有金属外壳的用电器基本上都是三线插头,三线插头的作用是更好的保护使用人员使用外带金属壳的家用电器的安全,以防使用人员在使用过程中漏电触电时导致死亡事故的发生。
![](https://video.ask-data.xyz/img.php?b=https://iknow-pic.cdn.bcebos.com/4afbfbedab64034ff4b4a09fbdc379310a551d29?x-bce-process=image%2Fresize%2Cm_lfit%2Cw_600%2Ch_800%2Climit_1%2Fquality%2Cq_85%2Fformat%2Cf_auto)
5、一定要在确定电源关闭的情况下操作,谨防触电。
![](https://video.ask-data.xyz/img.php?b=https://iknow-pic.cdn.bcebos.com/21a4462309f790524c6f25a71ef3d7ca7bcbd533?x-bce-process=image%2Fresize%2Cm_lfit%2Cw_600%2Ch_800%2Climit_1%2Fquality%2Cq_85%2Fformat%2Cf_auto)