How to connect the wiring of Yuba?

1, one ground wire, one yellow and one green, connected to the socket above the bathroom and connected to the Yuba shell; The neutral wire, which is blue or black in most cases, is connected to the socket and the turnbuckles of the five lamp holders on the left side of the bathroom. The live wire, which is red in most cases, is located at the lower right of the socket and connected to the terminals of the three switches.

2. Red, white, blue and yellow. Line 4 is the incoming line L of electrical equipment. The black line is the zero line. When the multimeter is in the buzzer, any measuring pen is always on the black line, and the other measuring pen is on the red, white, blue and yellow line in turn. Every time there is a beep, it means that the black line is the total zero line.

3. Three wires, one for lighting and the other connected to the central connecting post of the lighting head; Two lamp heating switches, and the other terminal of each switch is connected with the central terminal of two heating lamp holders. The Yuba terminal marked with N is connected to 0, and the other four terminals have two warm lights, one for ventilation and one for lighting. These four terminals are connected to the switch control button, and the other terminal is connected to the switch. It should be noted that the color of the wire should be made clear.