For the requirements of charging wires, there are requirements for specifications, models, quality and other factors. According to the specifications and low resistance value of wires, the requirements for wires need to meet the power of charger. The power is too low, which is prone to heating and spontaneous combustion. Therefore, the selection should be based on the power of charger and the power of pure electric vehicle charger, The power of the household slow charging charger matched with the vehicle is basically about 3.5kw to 1.6kw, which depends on the size of the battery capacity. Taking the power of the charger as an example, the maximum power that the socket and wire of household electricity can withstand is about 3.5kw. According to the size of copper core wire in the national standard, 2.5mm2 is enough.
2.5 square meters can carry 16a-25a power of about 5.5kW. Of course, if the charging distance is relatively far, the requirements for wires will be higher, which requires lower resistance value of wires. For the size of charging wires of electric vehicles, the charging and discharging process of electric vehicles will lead to greater current due to long time, high current intensity and high cable use frequency; In this case, 4 square wires can be used. 4 square wires can carry 35a-40a current, which can reach about 8kw according to power.
Generally speaking, for the requirements of electric vehicle charging wire, on the basis of ensuring its good insulation performance, it should have high heat resistance and aging resistane. At the same time, it should have good low smoke and flame retardant characteristics during combustion.
.png)
e. At the same time, it should have good low smoke and flame retardant characteristics during combustion.