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How are materials for wire harnesses selected in electronic wire harness manufacturing?
In many people’s understanding, electronic wire harness processing simply involves assembling wires, connectors, insulating sleeves, and wrapping materials—without much technical difficulty or sophisticated processing techniques. In reality, however, electronic wire harness processing begins with careful material selection. If you lack the relevant professional knowledge and procure wire harness components that don’t meet the customer’s requirements, the resulting wire harness products may fail to satisfy the customer’s intended application needs. So, how should we select materials for electronic wire harness processing?
Reasons for Damage to Automotive Wiring Harnesses
1. When replacing wires in an automotive wiring harness, failing to select wires according to specifications (using wires that are too thin) can result in a significant voltage drop and heat generation when large currents pass through them, gradually causing the wire insulation to age and deteriorate. 2. Carelessness during battery installation—such as reversing the positive and negative terminals, causing a short circuit inside the alternator, damaging insulating gaskets and insulating sleeves, or incorrectly connecting the alternator’s field winding and ground wire—can all lead to burning of the wiring harness.
How do you determine the quality of an electronic wire harness?
An electronic wire harness is a shorthand term for the internal wiring of electrical equipment. The electricity carried by these harnesses is typically low-voltage, distinguishing them from cables used in high-voltage environments. There are three main standards for electronic wire harnesses: UL standard, 3C standard, and VDE standard. AWG is generally associated with the UL standard, while cross-sectional areas in square millimeters are usually specified under the 3C or VDE standards. Domestically, electronic wire harness manufacturers primarily focus on either the 3C or UL standards.
Maintenance methods for electronic wire harnesses
Take the electronic wiring harness for an automobile engine as an example: Inside the engine’s electronic wiring harness, there are typically multiple copper flexible wires encased in plastic. The engine is the heart of the car. If the wiring is defective, it can adversely affect the engine’s performance. When the electronic wiring harness operates for extended periods in the high-temperature engine compartment, its outer casing may crack and peel off, exposing the underlying wires and causing electrical leakage.
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