How many devices on a branch circuit?

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peter d said:
Big deal. :roll: I can put 10 billion on a single circuit. :)
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You may suffer a voltage drop issue, and carpel tunnel. :D Please post a picture when you finish we'd all love to see it.
 
acrwc10 said:
You may suffer a voltage drop issue, and carpel tunnel. :D Please post a picture when you finish we'd all love to see it.
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Physically you cold not because it would be so long of a circuit that the VD at the end would be the full 120.
 
masterinbama said:
Their local view on this is 8 on a 15amp and 10 on a 20 amp.
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Is that the person answering the phones opinion/preference or a written policy/amendment to the NEC?
 
masterinbama said:
Just talked with the City of Decatur AL. inspector on this issue . Their local view on this is 8 on a 15amp and 10 on a 20 amp.
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What is their projected load per receptacle?

What do they use to substantiate this?

I'm assuming they know there is no load on a receptacle only what?s plugged into it.
 
masterinbama said:
Just talked with the City of Decatur AL. inspector on this issue . Their local view on this is 8 on a 15amp and 10 on a 20 amp.
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Do they have a formal code requiring this or is it just something they want?

Roger
 
masterinbama said:
Just talked with the City of Decatur AL. inspector on this issue . Their local view on this is 8 on a 15amp and 10 on a 20 amp.
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The NEC does not support this, in my opinion this decision belongs to the electrician, never an inspector.

Whether an electrician uses VA per receptacle or square foot makes no difference on the application, what?s important is circuiting according to the particular site and likely load.

In the old day?s portable heaters were common. Now-a-day?s an electrician does not need to circuit for portable heaters, if this is a home it?s habitable and requires proper conditioning. Circuit a fixed heater if needed but don?t promote the use of portable heaters these are most often misused.
 
wbalsam1 said:
All outlets that are not covered in 220.14 (A) through (K) shall be calculated based on 180 volt-amperes per outlet.
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I don?t want to reopen the old debate. But I will point out that this sentence is the beginning of one side?s point of view from the same debate. Please look for the previous discussions, before attempting to put in a comment here. I will only say that the opposing point of view is that 220 and 210 do not mix. The viewpoint is that you cannot use any 180 VA statements in the calculation portions of 220 as the basis for design of a branch circuit that is described in 210.
roger said:
Valleybuilt, the following is commentary from the National Electrical Code Handbook, notice the different requirements for residential.
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Here is an excellent example of why you should not take the Handbook as being the repository of all truth. Some participants in the debate to which I refer above would disagree with the handbook?s statement that there are any limits whatsoever on the number of receptacles on a branch circuit, regardless of whether on a dwelling unit or a commercial building.
 
charlie b said:

?I will only say that the opposing point of view is that 220 and 210 do not mix?
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Charlie, I can appreciate the fact that Article 220 is for calculating purposes but feeders, services and distribution equipment are sized from it inferring its use as application.

210.11 seems to mix [tie] directly to Article 220.
 
Actually I tried to spin him on this one,but you know where you get with arguing with inspectors. I pointed out that these are actually duplex receptacles, therefore at 180 volt amps per outlet you could only get 5 duplex receptacles on a 20 amp branch circuit.
 
tryinghard said:
Charlie, I can appreciate the fact that Article 220 is for calculating purposes but feeders, services and distribution equipment are sized from it inferring its use as application.

210.11 seems to mix [tie] directly to Article 220.
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I'll start a new post with this question :)
 
masterinbama said:
Actually I tried to spin him on this one,but you know where you get with arguing with inspectors. I pointed out that these are actually duplex receptacles, therefore at 180 volt amps per outlet you could only get 5 duplex receptacles on a 20 amp branch circuit.
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Actually, 220.14(I) says that a single or duplex on one yoke only counts as 180va for calc purposes.
 
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