Jon, I think what Larry means is to isolate the grounding at the receptacle so as not to extend an ungrounded circuit which, technically, it is an ungrounded circuit since the BX is not recognized as a grounding path. Just like replacing a 2 wire recep with a 3 wire GFCI protected, no equipment ground but legal because of the GFCI. The IG recep will prevent the unrecognized grounding from extending to the user equipment.
reno....this is old old BX, not flexible metal conduit. And the lengths are considerably longer than 6 feet anyway.
[This message has been edited by BigB (edited 02-11-2006).]
