Use this guide to learn how to use heat shrink tubing to repair frayed sheathing on a wire or cable.
Measure the diameter of the wire, and then choose a piece of heat shrink that will be large enough to slide onto the wire before heating but will still provide a snug fit once heated. The shrunken diameter should be slightly smaller than the wire's diameter to ensure a tight fit.
Measure a length of heat shrink tubing that is slightly longer than the damaged section of wire.
Use a pair of scissors to cut the tubing to the appropriate length.
Slide the tubing onto the wire so that it covers the damaged/exposed section.
Use a heat gun to shrink the tubing.
Continue heating the tubing until it is tightly secured to the wire.
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