Jury awards Fayette County dairy $4.75M in stray voltage lawsuit

Here’s the part that jumped up and hollered:

I’m familiar with the notion that transmission lines over pipelines can/do corrode the pipeline, so this use of “an anti-corrosion system that sends electricity into the ground to protect the pipeline” seems counter intuitive. So digging just a bit, the term “cathodic protection,” which does ring a bell.

Cool Science: Using Electricity to Fight Corrosion

And that article says:

To fight corrosion, we employ a technique called cathodic protection, which literally uses electrical currents to prevent rust.

With cathodic protection, a flow of electrical current is applied from an external source – a rectifier – through the ground and onto the steel pipe. The protective current changes the environment around the steel, stopping the corrosion reaction.

And “cathodic protection” is not a new concept either.

The intersection of these two concepts is what’s got me stumped. Adding this to the list of things to look into when I’m in a warm and isolated cabin up north!