我将8个嵌入式灯连接到房间的开关。当我第一次连接所有东西并打开电源时,断路器跳闸。如果我断开通向此线路断路器盒的地线,它不会使断路器跳闸,灯亮,但我得到了奇怪的读数。
使用数字万用表并将黑色引线接触到嵌入式灯的外部并且红色引线指向我的手指,万用表读数为18伏,因此基本上地面正在向罐头灯施加电压。如果我测试地面和中性线(在两个灯之间的接线盒处),我将获得50伏特。中性至热读取120伏特,热对地读取66伏特在同一接线盒。有什么想法吗?
我将8个嵌入式灯连接到房间的开关。当我第一次连接所有东西并打开电源时,断路器跳闸。如果我断开通向此线路断路器盒的地线,它不会使断路器跳闸,灯亮,但我得到了奇怪的读数。
使用数字万用表并将黑色引线接触到嵌入式灯的外部并且红色引线指向我的手指,万用表读数为18伏,因此基本上地面正在向罐头灯施加电压。如果我测试地面和中性线(在两个灯之间的接线盒处),我将获得50伏特。中性至热读取120伏特,热对地读取66伏特在同一接线盒。有什么想法吗?
Answers:
I wired 8 recessed lights to a switch in a room. When I connected everything the first time and turned on the power, the breaker tripped.
hot to ground reads 66 volts
Using a digital multimeter and touching the black lead to the exterior of the recessed lights and the red lead to my finger, the multimeter reads 18 volts,
so basically the ground is carrying voltage to the can lights.
If I test the ground and the neutral mid-line (at a junction box between two of the lights), I am getting 50 volts.
Neutral to hot reads 120 volts,
and hot to ground reads 66 volts at the same junction box.
Any thoughts?