Tails through the wall

Lbc · Post by **Lbc** » Wed Sep 20, 2006 11:46 am

I have run my wires for patch panels in my studio each panel gets a 20 pair snake cable 2 75 ohm video cables and 2 cat 5 cables. Thers are 5 panels so there are 5 sets of tails comming into the control room. Right now the tails come through a stud cavity with 2x4's above and below (ie 2 2x4's approx 14.5" horizontally between 2 studs. The wall construction is a typical double 2x4 wall with a space in between. the wires are not run in conduit (local code does not require it). The tails will be wired to a patch bay from the exit from the wall.
My question is what is the best way to exit these wires through the wall and maintain acoustic isolation? My origional Idea was to use an electrical box around the hole in the wall and then punch holes in that for proper sized strain reliefs for the wires. I would need five holes for the snake cables and then holes for groups of the smaller diameter cables. My other Idea was to get some short conduit (2') with an elbow to stub out through the Drywall. I could then fill the conduit with suitable material to maintain the isolation. Thanks for your replies and opinions. this site has been a wealth for very useful knowledge.

LBC

Post by **Aaronw** » Wed Sep 20, 2006 12:09 pm

Greetings...

If you're not using conduit, be sure to stuff the hole(s) with some extra insulation if the hole is large. If they are small, you can just use some acoustical sealant.

The other option, if you are using conduit, is to install prior to drywall. Put a couple 90 degree elbows in so the penetration isn't directly across from each other in a double wall situation. If flanking is an issue, be sure to decouple the conduit between the two walls.

After running the cables, you can stuff the conduit with insulation.

Lbc · Post by **Lbc** » Thu Sep 21, 2006 12:17 am

the panels are not directly accross from each other. The studio is a control room and 2 live rooms. When i said between the walls i meant that the "loom" of wire is run in between the two wall frames.2 of the five runs are like that , the other run up and accross the ceiling. Thanks fro the reply