I'm not sure what your NEC says about it, but in the U.K. our "code" specifies that each individual branch circuit leaving a distribution panel must have its own neutral.
One large neutral to two or three branches might be OK from the ampacity point of view, but if someone shut off one breaker to work on an outlet they could unwittingly break into a neutral - believed dead - which is still carrying current on the other circuits. Not good.
Joe: NM is Romex, right? What exactly is the difference between NM and NM-B?
[This message has been edited by pauluk (edited 09-26-2001).]
