The high voltage system of electric vehicle has high voltage and high current circuit. Its safety and importance are self-evident. If human body contacts, it may cause injury. Therefore, the design and layout of high voltage harness of electric vehicle is very important. In addition, green travel is a concept advocated now. Now the short-distance public transport travel mode is gradually replaced by new energy vehicles, which requires higher requirements for the high-voltage cables of new energy vehicles. Here is a brief introduction to the high-voltage cables of new energy vehicles.




High voltage cables are mainly composed of sheath, braid and tape, conductor and insulation (from outside to inside). Of course, considering the harsh environment where high-voltage cables are located, the requirements for different places are also different.


For voltage: the main difference from common automobile cables is that the frame needs to be set according to the rated voltage of 600V. If it is applied on commercial or bus, the rated voltage can reach 1000V, which may be higher than that; The cables now used in cars driven by internal combustion engines are designed to have a rated voltage of 60 V;


For temperature: at present, in addition to the higher temperature sent to the engine room or high temperature cabin in the vehicle, the withstand temperature of other electric furnaces often used is up to 105 ℃, while the high-voltage cables used in new energy are usually higher than the ordinary value, such as 125 ℃ or 150 ℃. Different places have different requirements for cables.


Service life: the recognized cable standard is 3000h, which is often used in long-term aging test. There will be special requirements for those used in the high-voltage field, which may exceed 3000 h, and the cumulative operation time at the specified temperature may even reach 12000 h; Safety signs: high voltage power will bring certain risks to users. High voltage cables should be visually distinguished from ordinary cables, and safety warning signs should be marked at the same time.



For more EV HV Cable and electric vehicle High-Voltage cable, please visit OMG official website: https://www.omgevcable.com/


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