Originally Posted by Barnman1
Actually I was wrong in that I forgot to say "and all wires to 20amp rated" Read the NEC and see if it says it is ok to replace one element to a higher rated device. If a 20amp receptacle is placed in a 15amp circuit, the thing plugged into the outlet and the outlet will stay cool. Meanwhile the wiring and breaker are getting hot and even if the circuit breaker is not tripping the wires could cause a fire and nobody would know until flames appear. Just because you or somebody else have done it with no problems, doesn't mean they are ok. The NEC is set up for people's safety, and should be followed to the letter. It is also the reason licensed electricians charge what they do and why they are required to take yearly continuing education to maintain their license
I'm gonna argue with you all day long.
IF you upgrade a circuit breaker you have to upgrade the wire and
outlets. Yep I agree with that.
If you put in a heavy duty duplex outlet in a light duty 15 amp circuit
there is nothing wrong with that.
Code doesn't care what the outlet says on it as long as the outlet is
rated at LEAST as high amps as the connected wire and circuit breaker.
Same as wiring a house with all 12ga wire. I've seen that done many times.
They still put in 15 amp breaker for bedroom and lighting circuits.
No code violation there.
(Now that copper is high as gold you won't find them doing that much
I don't recommend running any circuit near max amps load all the
time but a properly
connected and securely wired circuit is not a danger even if you are
drawing 12 amps out of a 15 amp rated circuit.
If the circuit was not capable of 15 amps why allow a 15 amp circuit
breaker in the first place?!?
OK I'm looking online and duplex outlets rated 20 amp now have a T shaped
slot on one side. Those might need to be on a true 20 amp circuit.
Older sockets that actually say 20 amp on the back do not have the T slot
and can be used on EITHER 15 amp or 20 amp circuits.
I still think you can get "heavy duty" duplex outlets that are 20 amp rated
and do not have the T shaped slot on one side but I haven't looked in
And back to the trailer hot plug.... my advice is still change the receptacle
first and see what happens.
Oh yeah, the following is a quote off the Home Depot outlet buying guide.
"Because 15-amp receptacles can be used with 20-amp circuits, most of the receptacles you see in homes are the standard 15-amp variety, with two slots and a u-shaped grounding hole. "