IMO there is little harm in putting a 20 amp receptacle on a 15 amp circuit and this is another case of NEC being the design manual it says it is not in 90.1
actually the comment about the #6 on a 40a
was just me making the point that if the it was a rulit
would be a dumb one just like not allowing a few
20amp receps on 15amp circuit
I've been a sparky for 20 years and I have constantly
looked down my nose at the NEC code panel
and local juristictional rules because I always question
something that makes no sense to me
Obviously it does not matter, if its a violation to put the
20A receps on a 15A circuit me wuestioning it wont
I just couldn't find it as I have been away from the
code for a decade working overseas
I had always thought it was ok in the past and wanted
to use that as the argument to the inspector since thry were not installed
Only reason the spec grades got used was because they were free
I was just trying to save time and effort on selling my house even though
I could change them all in about 4 hours for less than
100 bucks with all the headend gfci as well
Sorry to have confused everyone with the
I simply dont see why my receps are a violation since they are
overrated for the circuit. I wanted to know
if it was ever acceptable
Also I say a lot of the NEC is written for the sake
sales of new innovations on the market
Just like the AFCI rule for living spaces
The code is protecting agaist stupid people who
cause fire or injury. You cant protect everyone against everything
Natural Selection in this world is a good thing
I wanted to ask this forum because I know
there are a ton of smarter than me electricians on this
So I am reading it now that I have to change
all of my receps???
I don't want to turn this thread into another AFCI debate, but OP did pull the starting pistol trigger. There are many threads, some pretty lengthy on the AFCI topic.
Putting a 20 amp recep on a 15 amp circuit is dangerous. You have to look at it this way you may have not have been using 20 amps on that circuit but the second you do decide to use a 20 amp plug the wire ampacety wouldn't be able to handle that much amps flowing through it. which could possibly cause a fire from the heat in the wire. That is a major reason why its against the code and if you hired somebody to do that its illegal so in my opinion when doing any type of electrical work in your house make sure it follows the code.
Just because you can, doesn't mean you should.
Violation, sure (in most cases....). Imminent danger, no.
The amperage tables were designed with a cushion in mind- which FTR, I see nothing wrong with.
Last edited by user 100; 03-19-17 at 03:53 PM. Reason: added thought- there are a few occasions (one is described in 240 I think) where you can go over 15 for #14