On Sat, Aug 4, 2012 at 11:44 AM, Mike Jones <m...@mikejones.in> wrote:
> If only they had some kind of copper cabling running from some kind of
> central location [...] (poor power distribution
> efficiency would probably stop you wanting to power it that way all
> the time).

I imagine the problem would be safety and regulation rather than
efficiency. Send a few amps as a couple thousand vdc over a 14 awg
pair and you'll have no trouble efficiently powering the fiber hut a
few thousand meters away. But the telco's attachment on the pole is
relatively low to the ground. Semis have been known to take out the
phone cable exiting parking lots when it sags for some reason. Having
a few thousand volts in that cable might make the regulators nervous.

Regards,
Bill Herrin

-- 
William D. Herrin ................ her...@dirtside.com  b...@herrin.us
3005 Crane Dr. ...................... Web: <http://bill.herrin.us/>
Falls Church, VA 22042-3004

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