The common specifications of wires used in automobile wiring harnesses are wires with a square cross-sectional area of 0.5 mm, 0.75 mm, 1.0 mm, 1.5 mm, 2.0 mm, 2.5 mm, 4.0 mm, 6.0 mm, etc., each has an allowable load current value, which is suitable for different power electrical equipment. Wire. Taking the vehicle wiring harness as an example, the 0.5 specification line is suitable for instrument lights, indicator lights, door lights, ceiling lights, etc .; the 0.75 specification line is suitable for license plate lights, front rear small lights, brake lights, etc .; the 1.0 specification line is suitable for turn signals, fog Lights, etc .; 1.5-gauge wire is suitable for headlights, speakers, etc .; the main power line, such as generator armature wire, ground wire, etc., requires 2.5 to 4 square millimeters of wire.

This only refers to the general car, the key depends on the maximum current value of the load, for example, the ground wire of the battery, the positive power cord is a special car wire used alone, their wire diameters are relatively large, at least a dozen square millimeters Above, these "Big Mac" wires will be incorporated into the main harness.

The automobile wiring harness is the main body of the automobile circuit. Without the wiring harness, there is no automobile circuit. Automobile wiring harness refers to a component that is made by punching copper contact pieces (connector) wire cable after crimping, then an insulator a metal shell is molded on the outside to form a connecting circuit. The electronic wiring harness industry chain includes wire cable, connectors, processing equipment, wiring harness manufacturing downstream application industries. The wiring harness is widely used can be used in automobiles, household appliances, computers communications equipment, various electronic instruments meters, etc. The body shape is generally H-shaped.