A wiring harness is generally composed of wires, insulation sheaths, terminal blocks, and wrapping materials. As long as you understand these materials, you can easily distinguish the quality of the wiring harness.
1、 Material selection for wiring terminals
The copper used for terminal materials (copper parts) is mainly brass and bronze (brass has slightly lower hardness than bronze), with brass accounting for a larger proportion. In addition, different coatings can be selected according to different needs.
2、 Selection of insulation sheath
The commonly used materials for sheath materials (plastic parts) include PA6, PA66, ABS, PBT, PP, etc. Flame retardant or reinforcing materials can be added to plastics according to the actual situation to achieve the purpose of reinforcement or flame retardancy, such as adding glass fiber reinforcement.
3、 Selection of wiring harness wires
Choose the appropriate wire material according to the different usage environments.
4、 Selection of bandaging materials
Wire harness wrapping plays a role in wear resistance, flame retardancy, corrosion prevention, interference prevention, noise reduction, and appearance beautification. Generally, the wrapping material is selected according to the working environment and space size. In the selection of wrapping materials, there are usually tape, corrugated pipe, PVC pipe, etc.