I assume it has something to do with grounding, but I’ve never seen this before, so I’m curious of its function and need on a particular pole.
I assume it has something to do with grounding, but I’ve never seen this before, so I’m curious of its function and need on a particular pole.
That’s part of a lightning arrestor. Basically a fuse that disconnects the power locally if a strong current suddenly passes through, like from lightning.