dedicated power line

I'm hoping someone can tell me about romex 10ga. vs. 10ga. wire that comes from a co. called Colonial, it says 600V on the wire. Will this wire do for dedicated lines? Thanks all for your responses.

Thank you all for this fantastic feedback. Reading through the above posts and other threads on this forum, i was thinking about running the following to my AV closet:
1 x 20 amp circuit terminated with a single receptacle; this will be used for by 12 channel ATI amp
1 x 15 amp circuit terminated with quad box; to be used for pre-amp, active crossover module for speakers and turntable
1 x 15 amp circuit terminated with quad box; used for DAC, Blu-ray
1 x 15 amp circuit terminated with quad box; used for TV, Mac Mini, Cable modem and external drives.

20 amp circuit to run with 10awg. All 4 circuits to be terminated on same leg at fuse box, opposite polarity to rest of house?

I'm hoping someone can tell me about romex 10ga. vs. 10ga. wire that comes from a co. called Colonial, it says 600V on the wire.
01-28-11: Phillykid

Phillykid,

Building wire for power, (120V up to and including 480V carries a 600 V rating. The conductors inside of the sheath of NM-B, Romex trade name, is THHN 600V insulation rated.

Sorry, I do not have any first hand knowledge of
Colonial Wire. If the wire is single conductor it should have the type of insulation used. THHN, THWN, XHHW....

JMHO, use solid core copper wire instead of stranded....

Just to clarify the 15 amp vs 20 amp outlet, it's pretty easy to tell them apart by just looking at the front. Looking at the front of the 15 amp outlet you will see the two vertical slots and the round ground hole. With a 20 amp outlet there is a small horizontal slot coming off one of the vertical slots. Do a google images search for 20 amp outlet and you will see what I'm saying. By code though you should only use a 20 amp outlet on a 20 amp circuit.

I have found 10 gauge to be a bit excessive particularly for the length of runs we are talking about in a typical house. It's very stiff and difficult to work with especially stuffing it into the wall box with the outlet attached. I used 12/2 Romex with my dedicated 15 amp line to two 15 amp outlets and it's been a very worthwhile improvement to my system.

Hi Neil,
Did you notice any improvement with dedicated circuits ?
What electrical panel did you use ?
Diwakar