20A receptacle on a 15A circuit residential

[Greentagger]

Shouldn’t Table 210.24 be considered? This seems to be contradictory to Table 210.21(B)(3). It gives max rating of 15A receptacles on 15A rated branch circuit. Am I missing something?

 

[infinity]

Shouldn’t Table 210.24 be considered? This seems to be contradictory to Table 210.21(B)(3). It gives max rating of 15A receptacles on 15A rated branch circuit. Am I missing something?

Does it appear that they didn't update the summary table to match 210.21(B)(3).

 

[Greentagger]

Or botched the first table. And botched language with receptacle maximums.

 

[infinity]

Or botched the first table. And botched language with receptacle maximums.

I believe there was thread many months ago where someone posted the substantiation and this was an actual code change to allow a 20 amp duplex on a 15 amp circuit.

 

[Greentagger]

Oh ok. Ill try looking into that. Doesnt seem like a very good idea initially.

 

[hbiss]

I beleive there was thread many months ago where someone posted the substantiation and this was an actual code change to allow a 20 amp duplex on a 15 amp circuit.

Oh, great. Now the only receptacles they will make are 20A.

-Hal

 

[retirede]

Oh, great. Now the only receptacles they will make are 20A.

-Hal

I don’t see that as being much of a problem. Unless I’m missing something?

 

[LarryFine]

I beleive there was thread many months ago where someone posted the substantiation and this was an actual code change to allow a 20 amp duplex on a 15 amp circuit.

Seems wrong; the 20a receptacle is supposed to indicate the circuit's capacity/rating.

 

[hbiss]

Seems wrong; the 20a receptacle is supposed to indicate the circuit's capacity/rating.

It is wrong. A 15A receptacle is supposed to prevent the insertion of a 20A plug. True, the 15A breaker will trip but that's just plain stupid. Why would anybody do something like that on purpose?

The NEC is getting more and more screwed up each time it is changed.

-Hal

 

[infinity]

I believe there was thread many months ago where someone posted the substantiation and this was an actual code change to allow a 20 amp duplex on a 15 amp circuit.

Oh, great. Now the only receptacles they will make are 20A.

I believe I mentioned that in the previous thread. Now there is no longer any reason to manufacture 15 amp receptacles.

 

[Tutone]

It is wrong. A 15A receptacle is supposed to prevent the insertion of a 20A plug. True, the 15A breaker will trip but that's just plain stupid. Why would anybody do something like that on purpose?

The NEC is getting more and more screwed up each time it is changed.

-Hal

I agree Hal- Every 3 years common sense dwindles

 

[CoolWill]

Dont

I agree Hal- Every 3 years common sense dwindles

Don't worry. In the next few years there will be robots to wire buildings and houses so you won't have to.

 

[don_resqcapt19]

It is wrong. A 15A receptacle is supposed to prevent the insertion of a 20A plug. True, the 15A breaker will trip but that's just plain stupid. Why would anybody do something like that on purpose?

The NEC is getting more and more screwed up each time it is changed.

-Hal

How is this a safety hazard??? Sounds like a design issue.

 

[wwhitney]

How is this a safety hazard??? Sounds like a design issue.

So why do we have 215.3 and 210.20?

Cheers, Wayne