[Amps] 240V Outlet

[jimsmitheguard-a at yahoo.com]

The FPN actually comes from the IEEE. Everyone fom the electrical utilities to the equipment manufacturers pay attention to these standards to ensure that the equipment you plug in works with the wiring you've got connected to the utility, so it's smart to pay attention to the FPN.
 
Jim Smith, EE
KQ6UV


The FPN notes in  NFPA 70 (which is not part of the actual document) 
suggests no more then a 5% total drop between feeder and branch 
circuits.