Introduction: The technical characteristics of high-voltage three-phase wires for electric vehicles (usually as part of high-voltage wiring harnesses) are mainly reflected in the following aspects:

1. High voltage: Voltage range: New energy vehicles generally operate in the B-level voltage range, and high-voltage wiring harnesses need to meet the operating voltage range requirements of 60V-1500V. According to the provisions of GB/T 184384.3 for Class B voltage, it is usually AC30V-1000V or DC60V-1500V. As a key part of power transmission, the high-voltage three-phase wires of electric vehicles also need to withstand such high voltages.

2. High current: Current load: The motors of electric vehicles require a large amount of current to operate normally, so the high-voltage three-phase wires must be able to withstand large current loads. The rated operating current of the DC bus can usually reach more than 200A, or even higher, to ensure efficient transmission and stability of electrical energy.

3. Sealing: Waterproof and dustproof: The high-voltage three-phase wiring harness needs to have good sealing performance to prevent external impurities such as moisture and dust from entering the wiring harness. This is usually verified by waterproof and dustproof tests and airtight tests to ensure that the sealing of the wiring harness meets the requirements.

4. Heat resistance: Temperature resistance level: Since the voltage and current of the high-voltage electrical system are very high, the wiring harness will generate a lot of heat during operation. Therefore, the wire temperature resistance level of the high-voltage three-phase wiring harness generally reaches 125℃ (even 150℃), and the terminal temperature resistance generally reaches 140℃ to ensure that the wiring harness will not be damaged or fail due to high temperature.

5 Safety: Electrical safety: High-voltage three-phase wiring harnesses need to have high safety performance to prevent electrical systems from leakage, short circuits and other faults. This includes the use of high-quality insulating materials, reasonable wiring harness layout and connection methods, etc., to ensure the safe operation of the electrical system.

Finally, the technical characteristics of electric vehicle high-voltage three-phase wires are mainly reflected in high voltage, high current, sealing, heat resistance, electromagnetic compatibility, durability, safety and high-voltage connector characteristics. These characteristics together ensure the stable, reliable and safe operation of the high-voltage electrical system of electric vehicles. Through the above in-depth understanding of the product, welcome to search: OMG EV battery cable