Is it okay to use 4 square wires for BYD charging pile 7kw?

Of course. Single-phase 220, three-wire, live wire and zero wire are preferably 10 square meter, so as to prepare for future expansion (the battery of future electric vehicles is estimated to increase to 120kWh in five years, in that case, if it can be fully charged overnight, the designed charging power will reach above 10 kW, and then you only need to change a charging pile at the terminal).

The ground wire can be smaller, 4 square, or even 2 square. Five apartments will do. However, it is recommended to hand in a single three-core wire directly, 10 sq. In addition, when I installed it, I asked the power supply bureau to install a 12KWH meter with Gu Feng, and the switch was 63A, which was in one step!

First of all, you need to determine whether you have a fixed parking space. If it is a rented parking space, you must reach an agreement with the owner of the parking space, and then prepare the corresponding information to apply for the residential property first. Every place requires different information. Common information is:

1, parking space purchase contract or lease contract;

2, new energy vehicle purchase invoice or proof of property rights;

3, charging equipment certificate or parameter data (BYD cars are generally in the car charging equipment box);

4. Apply for installing charging equipment.