Cctv Power
April 18th, 2009
Can I safely run CCTV wire along the outside of a building?
I'm installing a security camera system, and one of the cameras is outside. Is there a limit to how long the outside run can be before it enters the building? Do I need to take any special precautions? The wire is a Siamese pair with RG-59 for video and (2) 18-gauge wires for power.
Thanks!
You experience signal loss the longer the cable is (attentuation), generally speaking you don't want the run to be more than 150-200 meters, especially if you're using RG59 (its a two edged sword, not only is the voltage dropping on the power lines going out to the camera but the signal is getting degraded coming back)
Also from an operational security sort of perspective you'd want to use PVC or metal conduit to protect the wires from tampering (both human and natural - squirrels, birds etc).
Hope this was some help
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