On December 11, 2020, green travel is a concept advocated at present. Now the short distance public transport travel mode is gradually replaced by new energy vehicles New energy cable The requirements for high-voltage cables are even higher.
1. Voltage: The main difference from the common automotive cables is that the frame needs to be designed according to the rated voltage of 600 V. If it is used in commercial vehicles and buses, the rated voltage can reach 1000 V. In comparison, the voltage may be higher. The cables used in cars driven by internal combustion engines are now designed to have a rated voltage of 60 V.
2. Temperature: In the current vehicles, except those with higher temperature are sent to the engine room or high temperature cabin, the temperature of the other frequently used cables can reach 105 ℃, while the high-voltage cables used for new energy are usually higher than the normal values, such as 125 ℃ or 150 ℃. Different places have different requirements for cables.
3. Service life
The recognized cable standard is 3000h, and this value is often used in the long-term aging test. There will be special requirements in the field of high voltage, which may exceed 3000 h, and the cumulative operating time at the specified temperature may even reach 12000 h.
4. 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 printed at the same time.
