I know nothing about how wires were rigged to insulators, so when my boss brought me an insulator he found with wire still attached while in Texas over the holiday I figured I'd ask you all. Any info about how/when/why would be new info to me, so please feel free to let me know anything about this. Thanks!

**I got several replies with a lot of good information, thanks all!

Bart Magoffin gave a more detailed explanation and posted another example. This is a [id=362449478; CD 128] with the same type of wire tie.