On Wednesday, July 15, 2020 at 9:24:58 AM UTC-4, bud-- wrote:

The wire from the cutout attaches to the primary feed with a clamp that
has a ring on the end of a screw, barely visible. A lineman can attach
a hot stick to the ring, unscrew the clamp, and safely disconnect the
cutout and transformer.


I watched a lineman pull one of those cutouts on a humid and very overcast (so fairly dim light) day.

He pulled fast, with a hard yank. The arc that followed the cutout down and away was almost 2 feet long and looked like a miniature lightning bolt. It was not bright, I wouldn't have seen it on a sunny day.