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Re: what is the best wire for a perimeter alarm



Gopher-proof wire's the only way to go.



--
Crash Gordon
-------ouch------

<I feel like I'm diagonally parked in a parallel universe>
"Frank Olson" <Use-the-email-links@xxxxxxxxxxxxxxxxxxxxxx> wrote in message
news:7vZGi.184845$rX4.154898@xxxxxxxxxxxx
| Bill wrote:
| > If you want the *best* wire... In addition to what others said, note
that
| > all that wiring running in the walls/attic of a house acts as a big
| > "antenna".
| >
| > The wiring can get voltage running in it induced by nearby radio
| > transmitters, etc. and lightning strikes - causing false alarms
sometimes.
| >
| > If you use "shielded" wire and ground one end of the shield (at the main
| > box), this will keep the outside electrical interference out of the
wiring.
| >
| > Shielded wire is like TV coax wire which has a metal wrap inside the
jacket.
| > But you can get regular 2, 4, [or whatever] conductor shielded wire. It
is
| > expensive though.
| >
| > More about this - Faraday Cage...
| > http://en.wikipedia.org/wiki/Faraday_Cage
|
|
| Next you'll be telling him to wire up his keypads with CAT 5E...
| Shielded wire...  sheesh!  We've got alarm systems installed in homes
| where the customer's are running ham radios.  I've not had a single
| false alarm that's related to "radio interference".  About the only
| "interference" I get these days is from young punks driving around with
| bass speakers the size of garbage can lids playing something they call
| "tunes" at a volume level that's gotta be close to 140 dB.  You can
| actually *feel* them coming from a block away.  To top it off, when they
| stop next to you they'll invariably be talking on their cell phones
| although God knows how the heck the person on the other end can even
| hear what they're saying.




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