If you parallel the conductors into one breaker, then it's against code (only wires #1/0 or larger can be paralleled).
My 2 cents: I would use two separate circuits each fed with 10/3 romex. The 10/3 comes already pre-twisted in the jacket, thereby greatly attenuating common mode noise. Simply cut off the bare grounding conductor at each end, put green tape around the exposed red wire (use it as a ground) and secure the black to the hot screw and white to the neutral. Use hospital grade receptacles which have rated clamps because #10's are a bear to loop around a screw -- they can pop out as you try to force the receptacle into the box. The trick here is to pre-bend the wires before attaching them into the receptacle (three bends, one down, then up and then 90 degrees pointing to the outlet).
My 2 cents: I would use two separate circuits each fed with 10/3 romex. The 10/3 comes already pre-twisted in the jacket, thereby greatly attenuating common mode noise. Simply cut off the bare grounding conductor at each end, put green tape around the exposed red wire (use it as a ground) and secure the black to the hot screw and white to the neutral. Use hospital grade receptacles which have rated clamps because #10's are a bear to loop around a screw -- they can pop out as you try to force the receptacle into the box. The trick here is to pre-bend the wires before attaching them into the receptacle (three bends, one down, then up and then 90 degrees pointing to the outlet).
