[SML] ClearComm questions

[hklong]

My experience is 18 or 16 gauge is great if in shielded twisted pairs when we did this we pulled in 2 cables with 2 twisted pair each. Com for show director, lighting and a tech channel with a spare being a phone loop means good com  and no radio station interference

On February 17, 2017, at 10:49 AM, Steven Santos via Stagecraft <stagecraft at theatrical.net> wrote:

Would it cause any problems if 12g wire was used for this? That would
be the same gauge used for 20amp wiring...

On Fri, Feb 17, 2017 at 12:54 PM, Nigel Worsley <niglew at googlemail.com> wrote:
>>   18g?  20g?
>
> The thicker the better, especially if you are using speakers and not
> just headsets. The ground wire is shared by the power and audio, so
> the extra power drawn by the speaker amplifier gets superimposed on
> the audio. If the wire is too thin then a feedback situation can
> develop when the volume is turned up, I had this happen on an
> installation that used 0.5 sq mm cable (about 20g), but there were
> some unused wires installed that allowed the ground wire to be doubled
> up which fixed the problem. I would say that 18g is the minimum to
> use, and go bigger if practical.
>
> Nigel Worsley

____________________________________________________________
For list information see <http://stagecraft.theprices.net/>
Stagecraft mailing list
Stagecraft at theatrical.net
http://theatrical.net/mailman/listinfo/stagecraft_theatrical.net