Understanding the Specifications of Single-Phase and Three-Phase Charging Cables for Electric Vehicles

China [CN]

Charging stations are now very common energy replenishment devices, but many people still don't know the required cable size (in square millimeters) for installing them.

Distinguishing common charging cable products: The thickness of charging station cables cannot be generalized. It mainly depends on the charging station's energy storage capacity and the voltage the cable harness can withstand when carrying power. Generally speaking, charging station cables are much thicker than other wires. The following is an introduction from a professional cable manufacturer providing solutions:

Charging stations are divided into single-phase and three-phase. Regardless of whether it's single-phase or two-phase, the AC input current must first be calculated.

For single-phase charging stations (AC charging stations), the calculation formula I=P/U can be used;

For three-phase charging stations (DC charging stations), I=P/(U*1.732). Therefore, the cable should be selected based on the current. (Cable selection can be referenced in relevant manuals or regulations): Single-phase charging piles are generally 7KW (AC charging piles) with I=P/U=7000/220=32A, requiring 4 square millimeter copper core cables; Three-phase charging piles (DC piles) are 15KW with a current of 23A and a 4 square millimeter cable; 30KW with a current of 46A and a 10 square millimeter cable; 60KW with a current of 92A and a 25 square millimeter cable; 90KW with a current of 120A and a 35 square millimeter cable.

Of course, the above product specifications are for market information reference only. Please contact a professional cable manufacturer based on your actual application scenario. Welcome to visit: https://www.omigr.com