[robocat]

Unless there was an obvious reason for the break then there could easily be another "nearly broken" fault in the cable e.g. if break was due to stretching.

A partial break has the risk of local overheating.

So perhaps you should biff the cable anyway if it is likely to be unsafe?

[daemoncoder]

This is a good point - the cable is probably 20+ years old and has been used for weed eaters and lawn mowers. It's been regularly uncoiled and re-coiled, not always correctly.

The correct way is using the over-and-under technique: https://www.popularmechanics.com/home/tools/a15873/over-unde...