single receptacle for DW

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mlnk

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Inspector is requiring single receptacles, not duplex, for DW and disposal. Is this required by NEC?
Is this so someone will not plug in an instant hot water heater under the sink?
 
It could be their own code. AHJ overides NEC. I think the receptacle can be made half hot, though, which is what I always see, with dw plugged into constant side. Specs is another place to look.

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I have two separate 20 amp circuits with two separate 20 amp rated duplex receptacles
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Which the inspector wants change to single Plex
 
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HappElectrician said:
It could be their own code. AHJ overides NEC. I think the receptacle can be made half hot, though, which is what I always see, with dw plugged into constant side. Specs is another place to look.

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Only if they have adopted and published amendments to the NEC. They must be officially adopted by the unit of government that adopted the code.
 
James L said:
I wish more people understood that
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I'm still in my apprenticeship, but this occured to me early on. If I'm correct, cities/jurisdictions choose what codes they adopt. NEC isn't an authority like OSHA. (I could be wrong on this, and would appreciate corrective feed back) So, just quoting code isn't the end of the argument. I think the better angle is arguing how the function of your install satisfies the concerns of his requirements.

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HappElectrician said:
I'm still in my apprenticeship, but this occured to me early on. If I'm correct, cities/jurisdictions choose what codes they adopt. NEC isn't an authority like OSHA. (I could be wrong on this, and would appreciate corrective feed back) So, just quoting code isn't the end of the argument. I think the better angle is arguing how the function of your install satisfies the concerns of his requirements.

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Yes the NEC is not an authority, it is a model code that jurisdictions can adopt as is or with amendments.

Once a code is adopted by a governing body it becomes law.

An inspector, like a police officer, can only enforce adopted law.
 
jumper said:
So unless the inspector can show an adopted section for simplex receptacles in the OPs case, it is not required and unenforceable.
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And, so, my answer was simply that he needs to make sure what the inspector is referencing for this requirement. Because the answer may be outside of what he knows of the NEC.

I have seen inspectors more than once blindside someone with the specs and/or city code. Once, an inspector actuall told us that it was his job to make sure we complied with our contract with the customer, as if he was hired by them or something.

(Don't think I'm one who tries to avoid doing things the right way. I am indeed a professional and work with integrity. And a big part of that is knowing how to navigate the AHJ minefield )

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I have one 20 amp for the DW and one 20 amp for the disposal.
In regard to the one pled receptacles:
"It is not written down, it is just something all our inspectors enforce."
 
Is that one 20 amp cir on each unit? If so,

210.21(B) Receptacles.
(1) Single Receptacle on an Individual Branch Circuit.
A single receptacle installed on an individual branch circuit
shall have an ampere rating not less than that of the branch
circuit.
Exception No. 1: A receptacle installed in accordance
with 430.81(B).
Exception No. 2: A receptacle installed exclusively for the
use of a cord-and-plug-connected arc welder shall be permitted
to have an ampere rating not less than the minimum
branch-circuit conductor ampacity determined by 630.11(A)
for arc welders.
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mlnk said:
Inspector is requiring single receptacles, not duplex, for DW and disposal. Is this required by NEC?
Is this so someone will not plug in an instant hot water heater under the sink?
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Where are you located? In the Mass amendments there is an additional paragraph in 210.21(B).

"Receptacles on Individual Branch Circuits A receptacle outlet installed to comply with a requirement for an individual branch circuit shall contain a single receptacle, or multiple receptacle if, and then only to the extent that, the supplied equipment includes multiple supply cord connections."

So, IF the equipment requires a dedicated circuit, it needs a single receptacle, otherwise a duplex is OK.
 
Anytime an AHJ inspector tells me something, I just say 'yes sir', esp. when it is something relatively trivial like this thread.

Wired a shop a couple of years ago in resident's back yard building. AHJ said must have TR receptacles unless over counter or above 50 inches - a future resident may convert to a day care room or something like that with children as a reason I guess.

Just said 'yes sir' and swapped out 18 spec grade Hubbel outlets for cheap big box TRs I had on hand - switched back to the Hubbel after permit signoff, did cost me an extra hour or so, did not even wrap the wires on the TR screws as they never ever carried any current.
 
in technical terms, you cannot even break the tabs of a duplex to get a single, because duplex is two on a yoke, a single is one on a yoke. it would make perfect sense to allow two ckt's to a duplex that had tabs broken off.

but then begs the Q, is it that hard to swap a duplex for a single and call it done ??
 
Leespark57 said:
Where are you located? In the Mass amendments there is an additional paragraph in 210.21(B).

"Receptacles on Individual Branch Circuits A receptacle outlet installed to comply with a requirement for an individual branch circuit shall contain a single receptacle, or multiple receptacle if, and then only to the extent that, the supplied equipment includes multiple supply cord connections."

So, IF the equipment requires a dedicated circuit, it needs a single receptacle, otherwise a duplex is OK.
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Boy you got one moron of a inspector , he did not even plug a tester in. What a useless ......inspector

How do you know if the OP is working in Mass?
 
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