What is the difference between industrial wire harness processing and ordinary electronic wire harness processing?

Industrial harness processing is significantly different from ordinary electronic harness processing. Industrial harnesses typically carry high currents and have extremely high requirements for wire materials. When alternating current passes through the wire, the current will concentrate on the surface of the wire, increasing the wire's resistance and power loss; this is the skin effect. The higher the frequency of current or voltage change, the more significant the skin effect becomes.

In industrial harness processing, the skin effect is one of the most basic distortion processes in signal lines and may also be the most easily overlooked and misunderstood. The skin effect can cause inconsistencies in the transmission of high-frequency signals due to the different components of the conductor. Similarly, in old harness conductors, the skin effect promotes the cross-jumping of signal currents on multiple harnesses, causing harsh sounds. To weaken the skin effect, multi-stranded, mutually insulated thin wires are often braided together in high-frequency circuits to replace thick wires with the same cross-sectional area; this multi-stranded harness is called a braided wire. Using the skin effect, hollow copper wires can be used in high-frequency circuits to replace solid copper wires to save copper. Although its resistivity will increase slightly, it does not affect the power transmission performance and can also increase the tensile strength of the transmission line.

In industrial harness processing applications, the skin effect can be used for surface quenching of metals. In addition, the skin effect is also one method of electromagnetic shielding. Using the skin effect, high-frequency electromagnetic waves can be prevented from penetrating good conductors to create electromagnetic shielding devices; this is also the reason why mobile phone signals are poor in elevators.