Re: How much current safe for 30m extension?
From: Watson A.Name - \ (NOSPAM_at_dslextreme.com)
Date: 02/13/05
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Date: Sat, 12 Feb 2005 17:43:36 -0800
"John Rumm" <see.my.signature@nowhere.null> wrote in message
news:420e7d2d$0$29771$ed2619ec@ptn-nntp-reader02.plus.net...
> ehsjr@bellatlantic.net wrote:
>
> > I think installing a half mile of # 4 might be "politically" cost
> > prohibitive, regardless of the technical merits. And I doubt
> > it would be a good financial solution. How many times
> > can you replace the batteries for the cost of digging a
> > 1/4 mile trench, and installing conduit, cable, fittings,
> > transformers, etc ?
>
> For that money you coud buy the PBX a UPS all of its very own!
That's probably what will happen. But the computer room's UPS is backed
up by a 300kW Caterpillar diesel generator, with 300 gallons of fuel in
the tank. It's supposed to run for at least 8 hours, so it does have an
advantage. We've had power outages that last for hours, so having that
much battery backup on the PBX would cost a lot more. But we'll
probably buy a couple APS 2.2kW UPses and put the PBX system on those.
They should last for close to an hour.
> --
> Cheers,
>
> John.
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