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  In the automotive electronic system, every car needs to use the wiring harness. A wiring harness is an assembly of many wires, cables and hoses used to connect all electrical equipment together. The primary role of automotive wiring harnesses is to supply power to accessories in all vehicles, pass current between circuits, and protect electrical systems from external damage and interference. The process of building a wiring harness requires the use of many materials, including but not limited to the following basic materials.
  1. Wire/cable
  The main components of automotive wiring harnesses are wires/cables that transmit power and signals. The number of wires included in a harness is based on vehicle type and manufacturing requirements. Each wire and cable is color-coded and numbered, and packaged together after being arranged according to the function and location of the fitting. Wire and cable styles and thicknesses vary according to manufacturing needs.
  2. Insulation and sheath
  The wires in the harness need to be insulated to protect them and jacketed to protect them from external aggressors. Automotive wiring harnesses are typically sheathed in PVC or soft rubber, with heat-shrinkable insulation to protect the individual wires. Some of the more advanced cables may use materials that are more resistant to high temperatures in order to protect the higher power electrical equipment in the car.
  3. Connector
  On the vehicle assembly line, the wiring harness needs to be accurately installed between the car's accessories. To achieve this goal, the wiring harness requires the use of connectors. There are various types of connectors, including connectors, retainers, locks, snaps, sleeves and nuts. Each connector is made of different materials, which need to be selected based on application requirements and environmental conditions. The main role of the connector is to ensure a tight connection and full power between the automotive wiring harness and the components on the vehicle.
  All in all, there are a wide variety of materials used in automotive wiring harnesses. The production harness needs to ensure that these materials meet the relevant standards and specifications of automobile manufacturers and countries to ensure the safety and reliability of vehicles. Understanding the materials used in the wiring harness can help to correctly select and configure each component during the production process to ensure the stability of the performance and quality of the automotive wiring harness.