What is an automotive wiring harness?

The automobile wiring harness is the main body of the network of automobile circuits, and without the wiring harness there is no automobile circuit. At present, no matter whether it is a luxury car or an economical ordinary car, the form of wiring harness is basically the same, are composed of wires, joint inserts and parcel tape. The latest information is organized and recommended ...... Automotive Wiring Harnesses Automotive wiring harnesses are the main body of the network of automotive circuits, and there are no automotive circuits without wiring harnesses. At present, no matter whether it is a luxury car or an economical ordinary car, the wiring harness braided form is basically the same, are composed of wires, joint plug-in and parcel tape.　Automotive wiring, also known as low-voltage wiring, is not the same as ordinary household wiring.　Ordinary household wires are copper single-piston wires, with a certain degree of hardness. And automotive wires are copper multi-pistil wire, some soft wires as thin as a hair, several or even dozens of soft copper wire wrapped in plastic insulation tube (PVC), soft and not easy to break.　　Automotive wiring harness wire commonly used specifications have a nominal cross-sectional area of 0.5, 0.75, 1.0, 1.5, 2.0, 2.5, 4.0, 6.0 and other square millimeters of wire, each of them has a permissible load current value, with the wires used for different power equipment. To the car wiring harness, for example, 0.5 specification wire for instrument lights, lights, door lights, roof lights, etc.; 0.75 specification wire for license plate lamps, front and rear lamps, brake lights, etc.; 1.0 specification wire for turn signals, fog lamps, etc.; 1.5 specification wire for headlights, speakers, etc.; the main power line, such as generator armature wires, hitch wires, such as the requirements of the 2.5-4 square millimeters of wire.　　This only refers to the general car, the key to look at the load of the greater current value, such as the battery hitch wire, positive power line is a special car wire alone, their wire diameter are relatively large, at least more than a dozen square millimeters, these "jumbo" wires will not be woven into the main wiring harness.　　Before arranging the wiring harness to draw a wiring harness diagram in advance, the wiring harness diagram is not the same as the circuit schematic diagram.　　A schematic circuit diagram is a picture of the relationship between the electrical parts, it does not reflect how the electrical parts are connected to each other, and it is not affected by the size and shape of the electrical components or the distance between them.　　A wiring harness diagram, on the other hand, must take into account the dimensions and shapes of the electrical components and the distances between them, as well as reflecting how the electrical parts are connected to each other.

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