Conductors: Automotive electrical equipment is connected to power supplies, control switches and protection devices through conductors. Conductors are the basic components of automotive electrical circuits. The conductors used in automotive circuits are made of multi-strand copper wires.
Wire cross-sectional area. The cross-sectional area of the wire is determined according to the current value of the connected electrical equipment. In order to ensure that the wire has sufficient mechanical strength, the cross-sectional area should not be less than 0.5m2.
The color of the wire: For the convenience of wiring and maintenance, the wires of each line of the car are distinguished by different colors. my country generally requires that the wires with a cross-sectional area of ​​4.0mm2 or more should be single-colored, and other wires should be double-colored (based on the main color). Add auxiliary color bars). The basic principle of wire color matching is that the main color of the double-color line in the same electrical system is the same as that of the single-color line; the auxiliary color of the circuit branch line should be selected according to the allowed color. Some cars use a lot of wires. For the convenience of wiring and identification, the joints of the wires are often covered with sleeves of a certain color. Mastering the color matching rules of automotive circuit wires is very helpful for troubleshooting.