> wrote:
>
>
>
>>This may be a stupid question and cost may be the answer, but why does fiber
>>
>>
>almost always seem to be run underground?
>
>probably cost, but also maybe atmospheric things like sun (heat) and weather.
>and poles seem to get knocked down pretty often as well. maybe the powers that
>be decided it was safer and easier to put power in the air so they could
>get to it for repairs. but like you said seems that fiber and most phone
>wires are underground.
>bb
>
>
>
Somehow I don't see any reason to put any wires, except perhaps the high
power lines above the ground. If correctly planned and implemented,
underground wiring is far more easier to maintain (If any needed). Yes,
I hear often that New Orleans is below sea level.... So what, so are all
the cables going under Atlantic ocean between US and Europe.
As for operational temperatures for plastic fiberoptics, I think is the
least resistant to environment, they are rated after a while of googling
as - 40°C to + 75°C. both ends of these temeratures are bareable to
humans so the rule of thumb could be that if you can take it, so can fiber.
Costwise I would still consider directional wireless. unless....
....Cost will go up as the need for speed goes up.
PS. I do not recomment to any locals to be more than 3-4 hours in +75
Celsius temperatures. Especially without some beer and friends. -40 is
quite unlikely here, so no need to warn about it. I would not mind it
though. it would make more room for me in the traffic.
Petri
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Received on 02/01/06
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