[mythtvnz] OT: Cat5e sharing phone and audio - any issues?

[Matt Poff]

Right. Hopefully shouldn't need to drill through too many studs as most 
of the walls are 100 years old, balloon framed without nogs but cladded 
in sarking. I'll just feed a number of vertical drops of 25mm corrugated 
PVC conduit from the roof space, so mostly just drilling holes through 
the top plate and never more than two of these on any one wall.

Any recommendations on spacing of saddle straps for fixing conduit to 
the framing? I'd like to fix it as I may pull additional cable through 
in the future and don't want the conduit moving around when I do this. I 
could just wrap electrical tape around the conduit and stud on the new 
internal wall but obviously not possible on the existing external walls.


yuri wrote:
> On 26/09/2007, Criggie wrote:
>   
>> you don't want to be drilling excessively big holes through the
>> framing and weakening your walls.
>>     
>
> You can safely drill up to one third width in the centre of the timber.
> EG in 90 by 45 mm framing you can drill up to 30mm hole safely without
> undermining the structural integrity of your house.
>
> Yuri
>
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