Bonding of metal stands when a VDF is mounted to it.

BLarsen1964

Member
Location
Iowa
Occupation
Electrical Superintendent
I have a wonderful question concerning bonding of a metal/strut stand when installing a VFD or power panel to it? I loathe interpreting Article 250 on this one guys! Is it necessary to run a separate bonding conductor to the building grounding system as in a column ground? Any help would be appreciated.
 
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