Introduction to wire conductor performance in automotive wiring harnesses

Automobile wiring harness is a very common wire used in the production of electronic and electrical products. As a commonly used conductor for transmitting electrical signals, copper is the conductor. Each end of the new energy vehicle wiring harness will be marked with sign numbers and letters to indicate the connection object of the wires. The operator can see that the sign can be correctly connected to the corresponding wires and electrical devices, which is particularly useful when repairing or replacing the wiring harness. With the continuous improvement of people's requirements for comfort, economy and safety, the types of electronic products on automobiles are also increasing. Automobile wiring harnesses are becoming more and more complex, and the failure rate of their wiring harnesses is also increasing accordingly. Copper has comprehensive properties: high electrical and thermal conductivity, high ductility, good strength, and can be alloyed with or coated with other metals. According to the current classification of conductors in the industry, there are roughly the following types: solid conductors, stranded conductors, and braided conductors.

Solid conductor of automobile wiring harness: Solid (single-strand) conductor is used when the wire and cable bolt is very small and no deflection is required. Each end of the new energy vehicle wiring harness will be marked with sign numbers and letters to indicate the connection object of the wires. The operator can see that the sign can be correctly connected to the corresponding wires and electrical devices, which is particularly useful when repairing or replacing the wiring harness. It has the advantage of its low cost compared to the equivalent stranded wire. Wires and cables with solid conductors are commonly used as mounting wires for small instruments, backplane wiring, or similar fixed equipment. Stranded conductors: Automotive wire harnesses Stranded conductors are used in most wires and cables to provide better flexibility and longer flexural life. From a practical point of view, stranded conductors have a longer service life than solid conductors. If there is a small V-crack or similar damage, it breaks after only a few bends. However, in the same operation, only a few conductors of the stranded conductor are scored or damaged, and the remaining non-damaged stranded wires can still provide proper service life. Braided Conductors-Flat or round (tubular) braided conductors are also sometimes used in certain applications where they are more suitable than round solid cables or stranded cables. Braided conductors are rarely insulated because the insulation impedes high deflection and the ability to slightly expand and contract in length due to axial push and pull of the cable.

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