Generally speaking, a 7kw charging pile needs 10 square meters of cable to ensure its safety. If it is a bv wire, it only needs 2.5 square meters. At the same time, do not use it in parallel with the high-power electrical appliances at home in the same circuit.
Notes on electric vehicle charging device:
1. The quality of the electric vehicle charging device directly affects the vehicle's endurance and the battery's service life. Therefore, it is better to select the charging pile equipped by the original factory, and if it is necessary to install the charging pile of the auxiliary factory, try to select a large brand manufacturer to ensure the quality.
2. The environmental factors shall be fully considered when installing the charging pile, and the premise is that it is simple and does not affect others. Before installing the charging pile of electric vehicles, the consent of the property should be obtained.
3. The matching degree between the charging pile and the vehicle shall be considered when installing the charging pile. If the voltage of the charging pile is too high, the battery of the car may be damaged. If the voltage of the charging pile is too low, the charging efficiency may be affected.