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Tweakers' Asylum Tweaks for systems, rooms and Do It Yourself (DIY) help. FAQ. |
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Tweakers' Asylum Tweaks for systems, rooms and Do It Yourself (DIY) help. FAQ. |
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In Reply to: RE: So why on earth do the sellers/manufacturers of audio grade outlets make 20A outlets? posted by Uncle Mike on November 26, 2016 at 07:04:33:
Mike,
I edited my previous post. I can see I should have qualified my response to alan m. kafton to his specific comments. I think my edit now does that.
//
Because the code reads that after a 15 amp breaker the wire needs to be 14awg ROMEX or THHN/THHW with a 15 amp receptacle.
Actually the code says for a 15 amp branch circuit #14awg is the minimum branch circuit wire size that can be used. NEC also says only a NEMA rated 15 amp receptacle can be installed on a 15 amp branch circuit.
Those guys manufacturing or rebranding existing manufacturer's receptacles know by now what the NEC code says. But still they may only sell NEMA 5-20R 120V 20 amp audio grade receptacles instead of offering both 15 and 20 amp receptacles to the not knowing any difference general public. When was the last time you seen a NEMA 5-20P 120V 20 amp plug on the cord of a piece of consumer audio equipment? Do you know why you don't see them?
When I did the electric in my house I used all 12awg ROMEX throughout. Most wall outlets and all the lighting circuits were put on 15 amp breakers.
That meets NEC Code. Just so know the branch circuit rating is 15 amp. The breaker determines the ampere rating of the circuit.
Because the branch circuit rating is 15 amp a 20 amp receptacle cannot be connected to the circuit. Of course in your case because you installed #12awg branch circuit wiring you could change out the 15 amp breaker to a 20 amp and then be code compliant installing a 20 amp receptacle.
NEC code say you can only install a NEMA rated 20 amp receptacle on a 20 amp branch circuit.
NEC code says you can install two or more 15 amp receptacles on a 20 amp branch circuit. A duplex receptacle is two. You can have both 15 amp and 20 amp receptacles on the same 20 amp branch circuit as well.
Jim
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Follow Ups
- RE: So why on earth do the sellers/manufacturers of audio grade outlets make 20A outlets? - jea48 10:42:27 11/26/16 (1)
- whatever.....nt - Uncle Mike 14:02:05 11/26/16 (0)
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