Therefore, in the development process of pure electric vehicles, special consideration should be given to the insulation of the electrical system, and the design should be strictly in accordance with the relevant national standards for electric vehicles to ensure that the insulation resistance can meet the needs of personal safety and that the insulation resistance value is greater than 100 Ω/V.
An overview of the safety design of high-voltage electrical systems for electric vehicles
Compared with traditional vehicles, pure electric vehicles use large-capacity, high-voltage power batteries, high-voltage motors and electric drive control systems, and use a large number of high-voltage accessories, such as electric air conditioners, PTC electric heaters and DC/ DC converter, etc. The hidden high-voltage safety problems and the resulting high-voltage electrical injuries are completely different from those of traditional fuel vehicles.
According to the special structure of pure electric vehicles and the complexity of the circuit, and considering the high-voltage safety issues of pure electric vehicles, it is necessary to carry out safe and reasonable planning and design and necessary monitoring of the high-voltage power system, which is necessary for the safe operation of electric vehicles. ensure.