New energy electric vehicles have become a new way of life. Charging pile cables are used as current carriers to connect electric vehicles and charging piles, which directly affect the safety of electric vehicle charging. Charging pile cables have high aging resistance, heat resistance, oil resistance, weather resistance, and other properties. Because they are often bent and dragged during use, the flexibility and mechanical properties of the cable are relatively high.
The cable selection of the charging pile is selected according to the voltage and current requirements of the charging pile's rated power, and a certain safety space must be left. The standard electric vehicle DC charging pile is commonly called "fast charge". During the charging process, the input voltage of the DC charging pile adopts three-phase four-wire AC380V±15%, the frequency is 50Hz, and the output is adjustable direct current, which directly charges the power battery of the electric vehicle. . It can meet the requirements of fast charging; while the standard AC charging pile for electric vehicles is commonly called "slow charging". The AC charging pile only provides power output and has no charging function. It needs to be connected to an onboard charger to charge the electric vehicle.
1. Charging piles are divided into single-phase and three-phase. Regardless of double-phase or single-phase, it must first be converted to how much AC incoming line current is.
(1) For single-phase charging pile (AC charging pile) I=P/U
(2) For three-phase charging piles (DC charging piles) I=P/(U*1.732)
After calculating the current in this way, select the cable according to the current.
2. For cable selection, please refer to related manuals or regulations such as:
(1) Single-phase charging piles are generally 7KW (AC charging piles). I=P/U=7000/220=32A. A copper core cable of 4 square millimeters should be used.
(2) Three-phase charging pile (DC pile)
15KW current 23A cable 4 square millimeters
30KW current 46A cable 10 square millimeters
60KW current 92A cable 25 square millimeters
90KW current 120A cable 35 square millimeters
All charging piles should have a neutral wire and a ground wire. Therefore, a three-core cable is required for a single-phase and a five-core cable for a three-phase.
For more Emergency backup hybrid storage inverter, Three Phase Hybrid Inverter for France, AC Coupled Battery Inverter for Canadainformation, please contact us. We will provide professional answers.