I do not believe that NM connectors are listed for grounding purposes.
Rebar is not listed as an electrode as per 250.52(5)...it is listed as part of an electrode in .52(3).
Will this work? yes. Will that rebar last long in the soil environment? I do not know. So how long will the steel beam be "effectively grounded"?
The 2008 NEC will most likely have "effectively grounded" removed from the entire code book, as "effectively" is too subjective a term by itself.
[This message has been edited by PCBelarge (edited 10-01-2006).]
