[rescue] Anybody have knowledge of Telco 48V wiring???

[Dan Sikorski]

James Fogg wrote:
> The reason we have -48VDC power systems is because telco facilities use
> it. They use it because it's a standard for "wet" (battery) power. The
> reason it's negative is to prevent corrosion on the lines.
>   
I have wondered about that for a while.  Care to elaborate on that?  Or 
do you have a link that explains it?

    -Dan Sikorski