Originally posted by E57 , quote"Active 1's advice about checking the local codes is a wise idea. Although there in no physical difference electricaly speaking in having 2 circuits in either (2) 12/2 cables, or a single 12/2/2 cable, there may be some other factor. For instance, localy I am required to have all conductors identified by the phase they are on, and not 'technically' the way the local code is written to phase tape them for identification, they need to have the color in the pigment of the insulation. So that means I would either have to get red/white conductor romex, or use 12/2/2. (Or 14/2/2 depending on the circuit.) FYI CH makes a 3-wire AFCI breaker...."
I am only just curious about this local code amendment you are describing. Do they apply this to single phase 240/120 volt residential systems? If so, why? The system is single phase. Both hot conductors are on the same phase.
