In article ,
wrote:


That's only the "B" part.
There IS another allowed reason.

422.16 Flexible Cords.
(A) General. Flexible cord shall be permitted (1) for the
connection of appliances to facilitate their frequent interchange
or to prevent the transmission of noise or vibration


A power failure every year or less can be considered "frequent
interchange". - if you don't wish to make a case for anti-vibration
(and you do not have a "compliant connection" or whatever you call the
fabric connector on the duct hood.


HEY, I LIKE THAT!!!

David