Wire Twisting

ELECTROMAGNETIC INTERFERENCE

Electromagnetic interference (EMI) is the interference generated by external power supply to the circuit. It will reduce the performance of the circuit or make it stop working.

The three most common ways to reduce the effects of electromagnetic interference in cable assemblies are:

1. Use shielded multi-core cables, or

2. twisting together pairs of hookup/lead-wires

3. Wrap the wiring harness with shielding tape

This subsection focuses on twisting pairs of wire together to mitigate EMI.

PAIRED HOOKUP/LEAD-WIRE TWISTING CAPABILITIES

1. Based on the electromagnetic interference expected or measured in the application, electrical engineers will determine the number of wire wraps that need to reduce or eliminate the effects of electromagnetic interference at a given length.

2. The table below identifies the maximum number of wire twists per 100mm that we can offer for PVC-insulated hookup wire, depending on the wire gauge.