Also the NEC 2008 700.9(B) saying it needs to be entirely independent of other cicuits.
And when presented to an IAEI panel consisting of Vince Saporita, (CMP 11) David Mercier, (CMP 7 Alt) John Minick, (Retired CMP member) Mark Ode, (TCC Alt, CMP 3 Alt, and CMP 4) Jim Carpenter, Keith Lofland, (director of education, codes and standards for IAEI International) Mark Earley, (see pages 9 and 20 of the NEC and the cover of the NECH) Richard Loyd, (CMP 8) and Alan Manche (CMP 10), it was stated by Vince Saporito that after a conversation with Mark Ode and John Minick a permanent divider constitutes "entirely independant", no other panel members objected to this.
Roger