What standards must a car wire harness meet to be considered qualified?

1. The connection between the plug and the electrical appliance should be tight, the terminals should be elastic, and not loose. Loose automotive wiring harness plugs directly affect the use of automotive electrical appliances and are prone to connecting or disconnecting circuits, rendering the appliance unusable. This situation is most common, for example: automotive wiring harness plugs may affect the following points: the harness can generate electricity. If the automotive wiring harness connector is disconnected and cannot power the battery, the turn signal will not light up. Therefore, it is necessary to check whether the automotive wiring harness connector should be fixed.

2. Whether the terminal shrink sleeve is tightly wound. If the shrink sleeve of a substandard automotive wiring harness terminal is loose, the loose wire body can easily cause a short circuit, leading to vehicle fires.

3. Low-voltage internal wires are made of flame-retardant harnesses, and low-voltage internal harnesses can withstand high temperatures of 200 degrees Celsius.

4. The automotive wiring harness sheath should be wrapped in place. The automotive wiring harness sheath provides insulation and has oil separation function. The reason automotive wiring harnesses can withstand corrosion, high temperatures, aging, etc., is because the automotive wiring harness sheath provides protection.

5. Good automotive wiring harnesses are made of red copper, so based on the weight of copper rather than aluminum, the same quantity of harnesses is best. Harnesses made of copper-clad aluminum are lighter.