I was registering a little dubiousness about the THHN/THWN wires.
When we were wiring up the Castle, through the support arms, the Thrust Ring, the secondary support arms, and into the other Habitats, we exclusively used Silver-clad copper wires for anything smaller than busbars.
We had to make it ourselves, but what else were we going to with the extra silver anyway? Make bullets?
Well, don't we need silver bullets to keep the zombies under control?
Been reading about Pern, have you?