[BC] 110 V DC

[nakayle@gmail.com]

Most of the rest of the world used 230V for all single phase service
which becomes 400V for 3-phase.  The higher voltage is more efficient,
requires smaller wires and there is only one electrical system rather
than the confusion of difference systems providing an asortment of
voltages- 120,208,240,277,and 480 that we have here in the US.  (for
those unfamiliar with 208 and 277- they are by-products of 3-phase 120
and 480 systems and are common in commercial and industrial
installations, not because they are particulaly useful but that's just
the way 3-phase systems work- Volts x 1.732).

 - Nat

On 12/2/06, PeterH5322 <peterh5322 at rattlebrain.com> wrote:
>
> My utility, one of the largest in the country, had an average voltage of
> 127.5, this which was for a nominal 120 volt system.
>
> 120, 240 and 480 are the U.S. standards.
>
> 115, 230 and 460 were earlier standards.
>
> And, 110, 220 and 440 before that.
>
> During the energy crisis, my utility experimented with lowering the line
> voltage, initially all the way down to 110 volts.
>
> But, there were too many electric motor burnouts, and other failures, so
> 115, and finally 117.5 was selected.
>
> We're still a 120, 240 and 480. nominal, country, however.
> _______________________________________________