Fried I am not sure I have ever seen brand name BX but usually that refers to type AC type products. MC is somewhat different since it has a plastic inner wrap instead of paper and it is usually "wet location" rated but you couldn't bond (ground) your system with the armor. The armor of AC is rated as a bonding conductor (EGC) since it has that little strip in it.
What is old becomes new again and MC is now getting an internal bonding wire that will allow MC to be rated for bonding via the armor. The new stuff uses a big conductor for bonding tho.
[This message has been edited by gfretwell (edited 10-19-2006).]
