jimells
Member
- Location
- Houlton Maine
Does the NEC prohibit splitting a multiwire branch circuit into 2 separate cables, one for phase A and one for phase B? I've been searching the forum and the code book and can't find a specific reference to this.
Someone previously ran 12-3 NM to the 2nd floor and apparently only used the black and white conductors. (I say "apparently" because the cable terminates at a hidden splice- I suspect K & T ).
I plan to find the splice, replace the K & T, then use the red conductor to add a new circuit for the 2nd floor.
Art. 240.20(B)(1) says I only need individual single-pole OCPDs with handle ties but a two-pole CB makes a lot more sense to me. And 240.2 tells me these aren't really "tap conductors" if I continue the circuits with 12 AWG, so 240.21 doesn't apply.
My conclusion is that this is permitted. Do you all agree?
Someone previously ran 12-3 NM to the 2nd floor and apparently only used the black and white conductors. (I say "apparently" because the cable terminates at a hidden splice- I suspect K & T ).
I plan to find the splice, replace the K & T, then use the red conductor to add a new circuit for the 2nd floor.
Art. 240.20(B)(1) says I only need individual single-pole OCPDs with handle ties but a two-pole CB makes a lot more sense to me. And 240.2 tells me these aren't really "tap conductors" if I continue the circuits with 12 AWG, so 240.21 doesn't apply.
My conclusion is that this is permitted. Do you all agree?