What are some things to consider when choosing an automotive wiring harness?

1. Twisted pair and shielded wire:The type of wire should be determined according to the requirements of the components connected to the harness in the circuit. For general power signals and strong interference, difficult to interfere with the signal, ordinary wire can meet the signal quality requirements; for some weak signal circuits and easy to interfere with the signal circuits, you should choose twisted-pair or shielded wire. 2. automotive wiring harness type: to determine the choice of wire harnesses for automotive wiring harnesses, different standards corresponding to the wire structure and insulation layer materials with different properties. According to meet the standard requirements of the target market, choose the line type suitable for automotive products. Currently the main line types are FLRY, AVSS, American and national standard (QVR). German standard conductor insulation is thin and flexible; 3. Wire temperature resistance level: According to the working environment temperature of the automotive wiring harness wire, choose different temperature resistance level of the wire. For example, the Japanese AVSS conductor operating temperature standard is AVSS conductor 80 ℃, AEX conductor 120 ℃. Trainers in the passenger compartment can meet the requirements 4. Determine the cross-sectional area of the conductor:When determining the cross-sectional area of the conductor, the effect of voltage and conductor heating should be taken into account. Of course, the cross-section of the conductor can also be selected directly from the rated current of the conductor. The cross-sectional area of wiring for various electrical appliances used in automobiles can be appropriately selected based on the load current of the appliances used. Generally, 60% of the actual load current can be selected for electrical equipment that works for a long time.5. Color of wiring harness selection:With the increase of automotive electrical equipment, more and more wires are installed in the car. For easy identification and later maintenance, the wires of the automotive wiring harness are often distinguished by colorless. Each area will use a different letter code to indicate a different harness color.

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