DC power versus AC power

Unnamed Administration sources reported that Barney Wolff said:

> I'm surprised you're still around after a sub battery accident.
> They're a grade up from most CO's in available current, I'd bet.

I'd bet the other way. CO battery has to supply ring current, dial
tone and voice current, not just run the switch itself, at least
in the Copper Age. I don't think -48VDC is an electrocution risk
unless you're sweaty, but a vaporized wrench sure can burn you, and
I don't think GFIs existed for DC.

Anyway, nukes don't need the battery capacity of the old diesels.

<http://www.relocationspecialists.org/bat/cell.html&gt; and