What wire to use instead of Romex


I want to install a dedicated 20amp outlet (likely an AQ NRG). The run from the main panel in the garage to my living room above is relatively short - maybe 25 or 30 feet. Because of HOA rules/regs, I cannot use Romex. Wires in the garage must be inside conduit. I will run 10AWG, but I'm unsure what other specs I should implement. Should I use solid core or stranded? Should it be copper? Is BX the way to go? I've read where using stranded silver or silver tungsten is best, but I'd be concerned about the silver oxidizing/tarnishing over time, especially at the junction points where the wire has no insulation. Is it important to twist the three (including ground) wires or will they perform just as well if run side-by-side? 

roccity

Dedicated lines are a great upgrade. Based on all of your questions and rules I think it might be a good idea to get some help from an electrician. Don’t overthink this, plain copper will do the job.

@roccity Wrote:

Is BX the way to go?

NO! Do not use BX for audio see below:

For dedicated audio lines I would go with Type MC Galvanized Steel Metal Clad Cable 10 AWG. It has better EMI and EF shielding versus aluminum armor. FWIW, I have four dedicated lines for audio, one for each monoblock amp, one for analog and one for digital. 😎

Mike

 

Thanks @zlone and @ditusa 

I'm definitely going to have an electrician do the install for me.  I'm okay with working on 110, but I don't trust myself around the main panel!  Looking at MC cables on Amazon and HomeDepot.com, they all seem to be aluminum-clad, not steel, and both stranded and solid core copper are available.

New Q1: Stranded vs Solid Core?
New Q2: Any tips on where I can find steel-clad? 

Thanks again!
Patrick

 Solid Core copper conductors with insulated ground, not stranded. The electrician will know where to get steel-clad MC cable.

Mike