snip
I'm no expert, so please correct me if I don't understand this
correctly. I understood that 15 Amp outlets are all rated for 20 Amps.

Tom

The ratings on the outlets are molded into the plastic bodies. All the
15A oulets in my stock are labeled '15A', period.The 20A outlets are
labeled '20A'. That seems to indicate that using the 15A's above
their capacity is not appropriate. Note that repair plugs also have
molded in ratings like outlets. HTH

Joe