When you have to run wiring in an area where there is significant risk of it becoming damaged due to abrasion or cutting the chances of the wire insulation providing enough protection to keep it from becoming damaged are slim. In order to give your wiring harness the protection needed, you may find that you should be using expandable sleeving.
Expandable Sleeving Is Designed to Stretch Over Your Wires
Expandable sleeving such as that sold in our online catalog is designed to be stretched over the top of one or more wires in order to allow you to create bundles. Once released it shrinks back to size forming a snug outer layer that will protect your wires from damage. If you working in an area where your wires are likely to be exposed to heat, you can buy Kevlar sleeving that is designed to provide a layer of insulation and keep your wires from being burned or melting.