grounding generator slab steel

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brian ploskunak

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I couldn't find where this one was addressed. I have a generator that will not be a SDS, solid neutral at the MTS with the neutral and EGC not bonded together at the generator. The generator will be on a concrete slab. Should I just bond the slab steel to the equipment grounding conductor and the frame of the generator?

Or, should I do a supplementary ground rod and bond the slab steel, the generator frame and EGC together?

Do I size the ground to the slab steel the same as the EGC?
 
Unless the manufacturer's instructions require "grounding" of the generator to an electrode, it is not required for a non-SDS. Any additional "grounding" of the generator only need to comply with 250.54 of the NEC. All aspects of the installation is pure design and at your discretion.
 
I don't think I asked the question very well. I am trying to figure out the best way to ground (bond) the concrete slab steel. I was told that I need a ground rod but I am thinking that I can just bond it to the EGC.
 
There is no need to ground or bond concrete encased steel?????????

Electrical equipment gets grounded to certain objects that qualify as electrodes. Non-electrical objects are not grounded to electrical equipment.

I think your understanding is backwards????
 
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