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Commercial Outlets

Question asked by fahrquad on Feb 12, 2020
Latest reply on Feb 23, 2020 by midnightsun

Can someone point me to the specific section of the NFPA 70 that requires 120V outlets in commercial applications to be upside down (with the ground mounted upward)?  The usual answer I get from electricians is so that if a paper clip falls in between the plug and the outlet it doesn't short out the outlet, but if that is true doesn't the same apply in residential applications?