Circuits per bedroom

[Dennis Alwon]

You can't predict the load, Dennis; especially if there is a wife involved.

I am not predicting the load just stating what the code requires for circuit per sq.ft. In all likely hood there would never be an issue especially in a living room area or bedroom.

 

[George Stolz]

Gerrymandering can fix anything. Nothing says the square footage has to be square.

 

[ActionDave]

Gerrymandering can fix anything. Nothing says the square footage has to be square.

I'm stealing that.

 

[ActionDave]

I agree but if the code requires a 3 watts/sq.ft how would you wire a 1000 sq.ft room with one circuit. I understand that a 20x15 room can have as many receptacles as needed however if the room is calculated at 3000 watts it seems 2 circuits are required.

Room A 10x15, room B 10x15. Can I home run two circuits to room A and then take one of them on into room B?

 

[Dennis Alwon]

Room A 10x15, room B 10x15. Can I home run two circuits to room A and then take one of them on into room B?

You don't need 2 circuits at all since you only have 300 sq.ft. It is difficult to follow this ruling as installing one outlet on a separate circuit would suffice - code wise- if the sq. was oversized. Silly I know.

 

[Cavie]

Okay, that is what I mean total load.

1100 sq ft bedroom.

1100x 3VA=3300

How many 20A circuits?

210.11
(A) Number of Branch Circuits. The minimum number
of branch circuits shall be determined from the total calculated
load and the size or rating of the circuits used. In all
installations, the number of circuits shall be sufficient to
supply the load served. In no case shall the load on any
circuit exceed the maximum specified by 220.18.

20 amp circuits not required for bedrooms.

 

[Dennis Alwon]

20 amp circuits not required for bedrooms.

I think Derek knows that besides he didn,t say required

 

[jxofaltrds]

If you go by 3watts / ft then a 1,000 foot bedroom would need more than 1 circuit

I agree but you are the only one who agrees with me on this one!!:lol:

210.11 Branch Circuits Required.
(B) Load Evenly Proportioned Among Branch Circuits.
Where the load is calculated on the basis of volt-amperes
per square meter or per square foot, the wiring system up to
and including the branch-circuit panelboard(s) shall be provided
to serve not less than the calculated load. This load
shall be evenly proportioned among multioutlet branch circuits
within the panelboard(s). Branch-circuit overcurrent
devices and circuits shall be required to be installed only to
serve the connected load.

 

[Dennis Alwon]

Look at that... we agree on something. It never really seems to be an issue but I guess it potentially could be a problem. Someone told me there was a house in Raleigh, NC where every room in the house, including closets, were 30' x 30'. That would definitely be an issue there.

 

[kwired]

Look at that... we agree on something. It never really seems to be an issue but I guess it potentially could be a problem. Someone told me there was a house in Raleigh, NC where every room in the house, including closets, were 30' x 30'. That would definitely be an issue there.

I don't mind the general rule for most applications, but that 30 x 30 closet would need 2700 VA capability supplied to it, though it is possible such a large closet may have some receptacle outlets, but it is possible it may only have lighting outlets installed, and this would mean at least two branch circuits even if 20 amp circuits. Some common sense has to kick in somewhere on the abnormal installations.

 

[peter d]

Two circuits per bedroom? I usually put two bedrooms per circuit. :lol:

 

[Sierrasparky]

I agree but you are the only one who agrees with me on this one!!:lol:

210.11 Branch Circuits Required.
(B) Load Evenly Proportioned Among Branch Circuits.
Where the load is calculated on the basis of volt-amperes
per square meter or per square foot, the wiring system up to
and including the branch-circuit panelboard(s) shall be provided
to serve not less than the calculated load. This load
shall be evenly proportioned among multioutlet branch circuits
within the panelboard(s). Branch-circuit overcurrent
devices and circuits shall be required to be installed only to
serve the connected load.

Did not cite the code however that is what I meant!