Building steel as grounding electrode

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cppoly

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In an article from Mike Holt, he says "The 2011 NEC no longer allows the structural metal to serve as a grounding electrode when supplemented by a ground rod."

This doesn't make sense, does it? I thought when multiple electrodes were present they all have to be bonded together, so why would building steel not be allowed to be used an electrode if connected to a ground rod?
 
cppoly said:
In an article from Mike Holt, he says "The 2011 NEC no longer allows the structural metal to serve as a grounding electrode when supplemented by a ground rod."

This doesn't make sense, does it? I thought when multiple electrodes were present they all have to be bonded together, so why would building steel not be allowed to be used an electrode if connected to a ground rod?
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Not to speak for MH, but maybe I can clarify.

The structural metal frame is not an electrode, only the part that is in the ground for 10'.

One may attach a GEC to the frame as long as part of that frame eventually qualifies as an electrode or is attached to a CEE.

You can not attach a GEC to a frame that is only supplemented by a ground rod. Basically in order to use the frame to extend the GEC to a ground rod or such, part of that frame has to qualify as an electrode or be properly attached to a concrete encased electrode, not just a rod or such.
 
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