Outlets per circuit

[Karl H]

Ham,,,,you make wiring a house very expensive

I don't think Ham was speaking about a residential setting.
Commercial/Industrial are typically a bit more loaded than a
residence. It is very common in my area, when load is not known
to limit the devices to (6) receptacles per circuit. In houses, put all the
general use receptacles on one circuit, compliant yes, design wise
the customer may place bad marks on your report card! :grin:

 

[kwired]

I've done a few... Including a 2000sq' "entry" that the designers and Arch's wanted no recepticals in - had to twist some arms to get them with the backing of an inspector. The "Entry" was larger than most homes... Getting a few outlets was like pulling teeth. Bedrooms no matter how big there is less resistance of need - placement is another story...

A room that big and nothing will ever be in there that needs to be plugged in to use?

One may be able to argue that an "entry" does not fit into 210.52(A) but no outlets at all is ridiculous, they will probably find something they want plugged in within first week after move in.

Can't say I've seen an "entry" this large, does it look like it could be a hotel lobby, or is there really a good reason for designers (from their point of view) to not want any receptacles. Even hotel lobbies have receptacles in them.

 

[roger]

Voltage drop would limit the number by length.

Even if you know the length, how do you calculate the VD with knowing the load on each receptacle?

In any case, the conductors could be sized appropriately and we're back to putting as many as we want on the circuit.

Roger

 

[iwire]

 

[roger]

Now, in Bob's picture, putting all of these on one circuit would also simplify labeling the panel. :grin:

Roger

 

[kwired]

could be wall paper with carefully placed real receptacles so they blend in:grin: why else would they not plug into receptacles behind the equipment instead of well above it?

Or they could have installed all required receptacles in the house in one wall

 

[iwire]

could be wall paper with carefully placed real receptacles so they blend in:grin:

It is my living rooms and they are all real

why else would they not plug into receptacles behind the equipment instead of well above it?

It is art.

 

[jxofaltrds]

Bob

Is it OK to copy your picture?

 

[iwire]

Bob

Is it OK to copy your picture?

It is not my picture, I found it by Googling.

 

[Electron_Sam78]

Since the NEC, in article 220 requires 180 VA per receptacle when doing load calcs I use that as a guideline: 20a circuit = 2400 VA / 180 = 13.3 so no more than 13 receptacles on a 20 amp circuit and no more than 10 on a 15a circuit

 

[LarryFine]

Since the NEC, in article 220 requires 180 VA per receptacle when doing load calcs I use that as a guideline: 20a circuit = 2400 VA / 180 = 13.3 so no more than 13 receptacles on a 20 amp circuit and no more than 10 on a 15a circuit

Now, show that the actual wiring must be installed to match the load calcs.

 

[LarryFine]

could be wall paper with carefully placed real receptacles so they blend in:grin: why else would they not plug into receptacles behind the equipment instead of well above it?

Maybe the cords and wall-warts are printed on the paper, too.

 

[roger]

Since the NEC, in article 220 requires 180 VA per receptacle when doing load calcs I use that as a guideline: 20a circuit = 2400 VA / 180 = 13.3 so no more than 13 receptacles on a 20 amp circuit and no more than 10 on a 15a circuit

Read the article section a little closer.

Roger

 

[Dave58er]

Voltage drop would limit the number by length.

technically this is still not a limit per code.

 

[480sparky]

Maybe the cords and wall-warts are printed on the paper, too.

As is the entire entertainment system.

Heck, the whole image is faked.

 

[Electron_Sam78]

Now, show that the actual wiring must be installed to match the load calcs.

Edit:

Read the article section a little closer.

Roger

I didn't say it had to be done I just said I use it as a guideline. Actually if there's were a room that had 13 receptacles I divide it into 2 circuits

 

[roger]

Edit:


I didn't say it had to be done I just said I use it as a guideline. Actually if there's were a room that had 13 receptacles I divide it into 2 circuits

But, you did say the NEC requires 180 VA for receptacles and this is not the case for residential applications.

Roger

 

[Cold Fusion]

Since the NEC, in article 220 requires 180 VA per receptacle when doing load calcs I use that as a guideline: 20a circuit = 2400 VA / 180 = 13.3 so no more than 13 receptacles on a 20 amp circuit and no more than 10 on a 15a circuit

...I didn't say it had to be done I just said I use it as a guideline. ...

But, you did say the NEC requires 180 VA for receptacles and this is not the case for residential applications.

Roger

Sam -
I got it - first time you said it. 180va required for load calc - residential not specified. And, it is your preference to use that as a guideline.

Sounds reasonable to me for you to choose that.

cf