Wire Harness, also known as low-voltage wires, is different from ordinary household wires. Ordinary household wires are copper single-core wires with a certain hardness. The car wires are all copper multi-core soft wires, some of which are as thin as a hair, and several or even dozens of soft copper wires are wrapped with plastic insulating tubes (polyvinyl chloride), which are soft and not easy to break. Due to the particularity of the automotive industry, the manufacturing process of automotive wiring harnesses is also more special than other common wiring harnesses. Systems for manufacturing automotive wiring harnesses are broadly divided into two categories:
1. Divided by European and American regions, including China: TS16949 system is used to control the manufacturing process.
2. Japan: Like Toyota and Honda, they have their own system to control the manufacturing process. With the increase of automobile functions and the wide application of electronic control technology, there will be more and more electrical components, more and more wires, and the wiring harness will become thicker and heavier. Therefore, advanced automobiles have introduced the CAN bus configuration and adopted a multiplex transmission system. Compared with traditional wiring harnesses, multiplexers greatly reduce the number of wires and connectors, making wiring easier.
The common specifications of wire rods in commonly used Automotive Wire Harness include nominal cross-sectional areas of 0.5, 0.75, 1.0, 1.5, 2.0, 2.5, 4.0, 6.0, etc. 2.0, 2.5, 4.0, 6.0 square millimeters), each has a allowable load current value, which is used for wires of different electrical and electrical equipment. Taking the wiring harness of the whole vehicle as an examp