[echo4747]

Setting up a home theater in an existing room will require me to run a plastic raceway along part of the ceiling toward the projector. I plan on placing two vga cables in this raceway. since i also need power at the projector can i also run romex in the same raceway? Will it cause interference with the video signals? If so,instead of romex can I cun 14-3 bx cable in this raceway using the third wire for my ground so the the metal casing could act as a shield?

Thanks very much to all who can help out with an answer or suggestion.

 

[bart_75243]

I've always heard installers say never to run signal wires and power in parallel any closer than 24" and any wire crossing should be done perpendicular. This is to keep any interference from the inductance of the power wires from interfering with your audio or video signal. I'm not sure if the romex would act as a shield, though, and allow the two to be closer. My guess would be no.

 

[QQQ]

I answered this question in the digital projectors forum.

 

[Dennis Erskine]

Aside from the above, there is also a code issue here. They cannot be run within 6" without additional conduit around the line voltage wires.

 

[bart_75243]

Quote:

Originally posted by Dennis Erskine Aside from the above, there is also a code issue here. They cannot be run within 6" without additional conduit around the line voltage wires.

Dennis,


I was wondering if you could elaborate a bit here. Are you saying that any time a signal wire and a high-voltage wire come within 6" the power cable has to be within conduit? When my house was built the electricians ran the phone and alarm wires all over the attic and I know they didn't use conduit. Is this a different case? Also, is Romex considered to be conduit and would it meet code?


Thanks for the information.


-Robert

 

[echo4747]

won't the the metal sheathing of the bx armor cable serve as a conduit for code purposes?