Wire harness contacts should not be set in the following areas: branch points, over-thin branches, large curvature areas, water storage areas, sports areas, and locations without protection measures. The selection of automotive wiring harness contact positions directly affects the cost and quality of the wiring harness. Once the contact position is unreasonable, the thickness and width of the automobile wiring harness will be increased, the quality of the wiring harness will be reduced, and the raw material cost of the enterprise will be increased. The unreasonable position of the contact point will also make the design of the subsequent wiring harness more difficult, which will affect the installation and use of the subsequent wiring harness. The branch-and-join method is a common method for selecting joint locations. According to the main content of the branch intersection method, if the contact point is closer to the branch intersection point, the number of wires consumed is less. Since the automobile wiring harness contact cannot be set at the branch, the contact position should be as close as possible to the branch. The difference in the hinge mode and the position of the joint have a great influence on the wire diameter and installation and use of the automotive wiring harness.
In actual installation, technicians should give priority to single-point hinges. Too many contacts in the car wiring harness will affect the safety of the electric power. Generally, 70 contact wire groups in the vehicle wiring harness are the best. Double-point hinges are suitable for situations where more wires can be saved and the diameter of the contact wires is large. Reasonable contact positions can greatly reduce the cost of raw materials, help reduce costs, and improve assembly.