Inside a Lightning Arrestor [Cool Photos]

Lightning arrestors are an important part of both power line connections and well-designed antenna setups, used to (hopefully) keep a lightning strike from frying everything else attached to that circuit by providing a path for a high voltage strike to connect to earth ground.

I’ve never seen the inside of one, but the folks over at North Street Labs have fixed that for me by cutting one open with a grinder and showing off the insides.

Lightning Arrestor 1

Click through to their site for some more photos and videos of the process, along with an explanation.

[North Street Labs] via [Hack a Day]

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