How to wire the three open dual control switch in the living room! The switch controls 2 wires for d

Find one end of the fire wire switch of the lamp, and the other end of the switch can be tried one by one.

I'll it, buddy, it's too difficult for our group of friends, you can't do it, can't you add a three-open and dual-control at the door of the bedroom?

One open and double control is a switch, and the switch control on the panel is a double control switch. Three-tone lights need to be equipped with a dual-control switch. >>>More

This kind of connection requires an experienced electrician, ordinary people do not move, the wrong wire will cause a short circuit and serious consequences. There are two power supplies in the three wires, one light cable, the power line is connected to the socket and the left and right contacts of the dual control, and the light wire is connected to the center head of the dual control. It is important to remember that the wiring must be carefully verified before wiring.

There may be a wiring problem with the exhaust fan in the bathroom, the power supply of the exhaust fan switch (live wire) is taken from the socket, and the neutral line of the exhaust fan is connected to other lines or ground wires, resulting in an unbalanced total leakage current and tripping, but because the power of the exhaust fan is small, the current is also small and close to the total leakage current, so sometimes it may not jump. >>>More