Foundation re-bar grounding

[Mila2015]

I have a foundation with embedded re-bars. This will not have no electrical equipment on it. Question is, does the code require re-bar grounding?

 

[cuky2000]

There is electrical service in the building? Please be more explicit with the application.

 

[Mila2015]

Sorry for lack of details. This is an outdoor pad with only concrete tank on it, and no electrical service. Foundation is enforced with concrete.

 

[waross]

If you do not have a moisture barrier under the slab, the bars themselves will be a grounding electrode.
Google "Ufer Ground".

Bill
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"Why not the best?"
Jimmy Carter

 

[cuky2000]

There is no requirement by NEC to ground rebar for this type of application. Grounding rebar is one of the approved methods by the NEC to used as a grounded electrode (Ufer ground) for electrical service entrance.

If there is no electrical service entrance, there is no purpose to ground the slab rebar.

 

[7anoter4]

If this foundation is a part of a substation or power station yard a touch and step calculation has to be done.
I'd prefer to connect this foundation to the grounding grid. For construction details see-for instance:
NECA 331/2009 Standard for Building and Service Entrance Grounding and Bonding