Line protection design line protection is to protect wires and electrical components of protection circuits. The protection device mainly includes fuse, open circuit and fuse. The selection principle of fuse, engine ECU and ABS has a great impact on the performance and safety of the vehicle. In addition, electrical components susceptible to interference from other electrical equipment must be equipped with a single fuse

Engine sensors, various warning lights, exterior lights, horns and other electrical components have a greater impact on the performance and safety of the vehicle, but this type of electrical load is not sensitive to mutual interference. Therefore, such electrical loads can be combined with each other according to the situation, and fuses can be used together. The electrical loads of ordinary electrical equipment set to increase comfort can be combined with each other according to the situation, and fuses can be used together

Fuses are divided into fast melting type and slow melting type. The main component of quick fuse is thin tin wire. Among them, chip fuse has been widely used because of its simple structure, high reliability, good vibration resistance and easy detection. Slow fuse is actually a tin alloy chip. The fuse of this structure is usually connected in series to the circuit of inductive load.