Industry knowledge

What is a wiring harness

2022-06-11
A wiring harness is a wiring component that connects various electrical equipment in a circuit, and is composed of insulating sheaths, terminals, wires, and insulating wrapping materials.
1. Wire harness
In order to facilitate installation and maintenance and ensure that the electrical equipment can work under the worst conditions, the wires of different specifications and colors used in the electrical equipment of the whole vehicle are rationally arranged and integrated, and the wires are bundled with insulating materials. In bunches, it is both complete and reliable.
2. Normal selection of wire cross-sectional area and color code
1) Correct selection of wire cross-sectional area
The electrical equipment on the vehicle selects the cross-sectional area of the wire used according to the magnitude of the load current. Electrical equipment that works for a long time can choose 60% of the actual current carrying capacity of the wire; electrical equipment that works for a short time can use 60%-100% of the actual current carrying capacity of the wire.
2) Selection of wire color code
For easy identification and maintenance, the wires in the harness are colored differently.
For the convenience of marking in the circuit diagram, the colors of the wires are represented by letters, and the colors represented by them are noted in each circuit diagram.