High-voltage cable is an important component for transmitting high-voltage electric energy in electric vehicles, which connects the battery and electric drive system of electric vehicles, and plays an important role in power supply and energy transmission. Compared with traditional fuel vehicles, the high-voltage cables of electric vehicles have higher voltage and current carrying capacity, as well as more stringent safety requirements.

High voltage harness is the key to transmit high voltage electric energy, which is of great significance for new energy electric vehicles. Electric vehicle high-voltage wiring harness is different from general high-voltage wire products, especially in terms of structure, material and use.

In order to meet the needs of electric vehicle systems, electric vehicle high-voltage wiring harness materials are special. The high-voltage wiring harness needs to carry large voltage and current, in order to meet the high-power electric energy required by electric vehicles. The charging and driving process of electric vehicles are in a high temperature environment, and the high temperature resistance of high voltage wiring harness is required.

High voltage cable is an important part of high voltage wiring harness, including conductor, insulation, shielding layer and sheath layer, multi-layer structure needs to provide good electrical performance and safety, to cope with the high pressure and high temperature environment inside the car, to prevent cable overheating and electric shock and other safety problems.

High-voltage wiring harnesses of electric vehicles are not only used to transmit power signals and control signals inside the car, such as supplying ignition systems, lighting systems, etc., but also applied to the charging system of electric vehicles, which is responsible for transmitting electric energy from the charging pile to the battery system of electric vehicles. Compared with ordinary high-voltage wire harnesses, the voltage and current requirements are higher, so the design and material selection also pay more attention to efficiency and safety.

In addition, the high-voltage wiring harness of electric vehicles is applied to the interior of the car body, which is not easy to carry out daily maintenance and replacement. High voltage cables for electric vehicles should also consider the characteristics of waterproof, dustproof, acid and alkali resistance and durability to adapt to the complex environment in the car.

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