As I understand, the 05 NEC will now require the steel in the concrete slab to be connected to the other available grounding electrodes. This is something that I have not had to do before, but is being required on a job I am presently bidding. I searched some of the other posts to the ECN forums and several mentioned having the footing contractor stub up a piece of rebar to connect the GEC. How and where should this connection be made. I typically run the GEC from the ground rod up the exterior face of the building into the meterbase or CT cabinet. Could the rebar be stubbed up so as to be outside the building? Should it be inside the building? What type of connector or connection is used to attach the #4 copper GEC? Mechanical? Exothermic?
