[time-nuts] time-nuts Digest, Vol 103, Issue 14
Dan Kemppainen
dan at irtelemetrics.com
Tue Feb 5 08:42:59 EST 2013
Juts an FYI. I thought fiber was lightning proof also. As it turns out
the fiber used by phone companies has copper tracers in it for
location purposes (Without metal it's hard to find where it's buried).
This in turn causes lightning strikes to cut fiber fairly often. I
wouldn't have though about it, but a friend of the family is in charge
of laying and repairing fiber for phone companies straightened me out
on fiber.
There is however, usually a lot of extra fibers. At this point in time
the cost to lay anything in the ground is much more expensive than the
cost of big bundles. Sounds like a lot of extra fiber goes in the
ground just so they don't have to lay more later...
Dan
On 2/4/2013 6:35 PM, time-nuts-request at febo.com wrote:
> Consider that cost to manufacture the cable goes up as you put stuff in it. You not only need sensor packages, you also need to connect them so they can report data. Unless the sensors are optically powered and linked, they would compromise the inherent lighting immunity the fiber provides.
>
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