When to Twist Wires

Several factors may influence your decision to twist wires, including:

Twisted wires provide a way for electromagnetic interference (EMI) to travel around them rather than through them, which helps to reduce interference. In automobile applications where there are several EMI sources, such as the ignition system, alternator, and other electrical components, this can be especially helpful.

To enhance the signal's quality: By lessening the effects of noise and crosstalk, twisting wires can also aid in enhancing the quality of the signal being carried. This may be particularly crucial in situations requiring dependable, high-quality communication, such as the J1939 communication system found in many heavy-duty vehicles.

To make installation simpler: Twisting wires can help make it simpler to install and route the wires in a wire harness, particularly when the wires need to be bent, routed around tight corners, or passed through narrow holes.

The unique needs of the application and the advantages that twisting the wires would offer will ultimately determine whether or not to twist wires in an automotive application.