Major wiring harnesses in automobiles are:
Common specifications for wires in automobile wiring harnesses include wires with nominal cross-sectional areas of 0.5, 0.75, 1.0, 1.5, 2.0, 2.5, 4.0, 6.0, etc., square millimeters (nominal cross-sectional areas of 0.5, 0.85, 1.25, 2.0, 2.5, 4.0, 6.0 and other square millimeters are commonly used in Japanese cars, 2.5, 0.85, 1.25, 2.0, 4.0, 6.0 and other square millimeters), each of which has a permissible load current value, with wires used for different power electrical equipment.
Taking the wiring harness of the whole car as an example, 0.5 specification wire is suitable for instrument lamps, indicator lamps, door lamps, roof lamps, etc.; 0.75 specification wire is suitable for license plate lamps, front and rear lamps, brake lamps, etc.; 1.0 specification wire is suitable for turn signal lamps, fog lamps, etc.; 1.5 specification wire is suitable for headlamps, speakers, etc.; the main power line, such as generator armature wires, hitch wires, etc., require a wire from 2.5 to 4 square millimeters.
This just refers to the general car, the key to look at the maximum current value of the load, such as the battery hitch wire, positive power line is a specialized automotive wires used separately, their wire diameter is relatively large, at least more than a dozen square millimeters, these "giant" wires will not be programmed into the main wiring harness.
Automotive wiring harness
is the main body of the network of automotive circuits, there is no wiring harness there is no automotive circuits. Wiring harness refers to the copper punching and into the contact parts of the terminal (connector) and wire and cable crimping, and then outside the plastic pressure insulator or additional metal shell, etc., to wire harness bundle formed by connecting the circuit components.
The wiring harness industry chain includes wire and cable, connectors, processing equipment, wiring harness manufacturing and downstream application industry, wiring harness applications are very wide, available in automobiles, household appliances, computers and communications equipment, a variety of electronic instrumentation, etc., the body harness connects the entire body, the general shape of the H-shaped.