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Re: lightning



"Christopher Glaeser"  wrote in message
>
> An outdoor POE installation may include cat 5, 18 gauge for IR power, and
> 22 gauge for alarms.  Do you use shielded versions of each?  Can you
> recommend a product / supplier for these?
>

You can get shielded wire for just about any type of low voltage wire. (Get
out your checkbook though!)

Might try a local electrical supply (where electricians go shopping). Ask
who their low voltage wire suppliers are (like Belden), then browse their
web sites. Or they may have a catalog there or could give you one for
shielded wire of different types.

There are all sorts of manufacturing facilities these days with high voltage
machinery, electric motors, arc welding equipment, etc. (emitting all sorts
of electrical noise) and everything is computer controlled - all sorts of
low voltage sensors. So quite common to use shielded wire in those harsh
environments.

Also in the life support/hospital equipment areas, they want to keep out all
outside noise from their equipment wiring (cell phones, etc.) So again quite
common to use shielded low voltage wiring.

But they won't have this stuff at home improvement stores typically except
for quad shielded TV RG-6 coax cable.

Also you can search google.com for...
shielded cable
shielded wire
shielded cat 5 wire
etc.




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