How to connect the three-phase four wire distribution box?

Electricity is a very important thing. A distribution box will be installed at the entrance, which includes all the line switches at home. Do you know how to connect the three-phase four wire distribution box? Let's have a look.

1、 How to connect the three-phase four wire distribution box

1. First, three rows of line piles can be seen on the meter, with a total of three groups; Then take three live wires to wind the upper and lower wire piles into one phase in turn, so as to form three phases of ABC; Then connect each connected point to the power switch; Finally, connect an n-line and a neutral line.

2. In addition, the tail ends of W, V and u can be connected into a point first; Then connect the lead from the head end to the point respectively.

3. When the connection method of primary winding is adopted, there is no central line, then a yellow line can be connected at this time. When the tail end is connected, a neutral point will be generated. At this time, it can be led as a neutral line. Its main function is to balance the voltage of each electrical phase.

4. It should also be clearly understood here that three-phase refers to the point formed after L wire is wound around the pile, while four wires refer to three l wires and one n wire. When wiring the distribution box, it is mainly the connection of three live wires.

2、 What are the precautions for the wiring of three-phase four wire distribution box

1. Strictly follow the operation. This purpose is not only to protect personal safety, but also to avoid hidden dangers of power consumption in the future. Here, it is required to find a professional master for wiring.

2. Insulation measures shall be taken at the wiring place, and it shall be firm. If there is exposure, it shall be handled in time to avoid electric shock, resulting in dangerous accidents. When wiring, pay attention to the rated current. If it is exceeded, it is likely to cause damage to the components.

Conclusion: in addition, pay attention to dust prevention measures. Generally, the distribution box can play a protective role, but the dust accumulation should also be handled in time to avoid infiltration into the interior and affect the normal use of components. This is how to connect the three-phase four wire distribution box and the precautions for wiring. I hope the above contents can help you.