Equipotential bonding wire of new energy vehicles is also called Copper Braided Connection Wire / Copper Braided Connector. In electrical terminology, equipotential bonding is also called protective grounding. The definition of equipotential in Lightning and Lightning Protection Engineering "equipotential connection is to connect all metal objects in and near the building, such as steel bars, water pipes, gas pipes and other metal pipes in concrete, machine foundation metal objects and other large buried metal objects, cable metal shielding layer, zero line of power system and ground wire of the building with electrical connection method (welding or reliable conductive connection) Make the whole building a good equipotential body. "
In electric vehicles, if the large voltage of the entire battery pack exceeds 60V (DC), it has exceeded the range of human safety voltage, so equipotential bonding must be carried out to ensure safe use. The equipotential connection of new energy vehicles is to connect the leakage conductive part of the high-voltage components of the whole vehicle to the vehicle body through a grounding wire, and ensure that the high-voltage components and the vehicle body are at the agreed potential platform. The purpose is to prevent electric shock caused by electric leakage.
