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Access floor and grounding

Question asked by bwy on Dec 2, 2019
Latest reply on Dec 3, 2019 by j_w_hines

Is as access floor required to be grounded?  In an office building, carpeted tiles.  Power under floor in raceway.  Non-stringered flooring spec'd (tiles screwed down at each corner) and ground straps at corner.  

 

250.4 (A)(3) and (4) required that normally non-current carrying conductive material enclosing electrical conductors....be connected … ground-fault current path.  Or likely to become energized also be grounded (paraphrased).

 

Is the intent to required access floor be grounded?

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