DIY Chatroom Home Improvement Forum

DIY Chatroom Home Improvement Forum (http://www.diychatroom.com/)
-   Electrical (http://www.diychatroom.com/f18/)
-   -   how much is too much for 15 amps (http://www.diychatroom.com/f18/how-much-too-much-15-amps-30631/)

samiller1980 10-25-2008 01:39 PM

how much is too much for 15 amps
 
can I run 7 receptacles and 8 canister lights off of one 15 amp breaker, they are for bedrooms

KE2KB 10-25-2008 01:49 PM

I don't think it really matters what you run off of the breaker, as long as the breaker rating is appropriate for the wire size. You can use #14 wire (at least in the U.S.) on a 15A branch.
I don't think there is any limit on the number of receptacles or lights that can be on any one branch circuit. I could be wrong, so if someone who is more familiar with the code knows otherwise, please say so.

The real issue is what you are planning to plug into those receptacles.
You don't want to have the breaker popping all the time.

rgsgww 10-25-2008 02:04 PM

Sure you can, just like KE2KB said:
"The real issue is what you are planning to plug into those receptacles.
You don't want to have the breaker popping all the time."

You could put -ALMOST- all of the receptacles in a home off one circuit.

jerryh3 10-25-2008 02:10 PM

Quote:

Originally Posted by samiller1980 (Post 176694)
can I run 7 receptacles and 8 canister lights off of one 15 amp breaker, they are for bedrooms

Sure. Most receptacles I've seen draw 0 amps.

theatretch85 10-25-2008 02:44 PM

Quote:

Originally Posted by jerryh3 (Post 176705)
Sure. Most receptacles I've seen draw 0 amps.


Haha, thats a good one jerry!

If you have 100 watt bulbs in each of those canister lights, you're looking at 800 watts which is pretty close to 7 amp (actually like 6.66amps). That being said, you have already used about half the circuits capacity just on lighting alone; id keep that in mind when you think about what you will be plugging into those outlets.

220/221 10-25-2008 02:46 PM

Quote:

can I run 7 receptacles and 8 canister lights off of one 15 amp breaker, they are for bedrooms
Yes........AFCI's of course.

jerryh3 10-25-2008 03:01 PM

Quote:

Originally Posted by theatretch85 (Post 176711)
Haha, thats a good one jerry!

If you have 100 watt bulbs in each of those canister lights, you're looking at 800 watts which is pretty close to 7 amp (actually like 6.66amps). That being said, you have already used about half the circuits capacity just on lighting alone; id keep that in mind when you think about what you will be plugging into those outlets.

I try. I wouldn't do it. I run electric space heaters in my bedrooms during the winter and window a/c units in the summer. Either or these coupled with 600-800 watts of lighting would be pushing it.

Billy_Bob 10-25-2008 06:23 PM

If I have the option, I like to run lighting off a separate breaker. Then if the outlet circuit trips, you still have lights.

Or if an office building and multiple lighting only circuits, you can alternate hallways and offices on separate circuits. Then if one is off, the adjoining room still has light.

chris75 10-25-2008 06:55 PM

Quote:

Originally Posted by Billy_Bob (Post 176771)
If I have the option, I like to run lighting off a separate breaker. Then if the outlet circuit trips, you still have lights.


I've always thought that is the strangest reasoning to keep receptacles and lighting separate. Guess I just been doing this to long to see the obvious?

joed 10-25-2008 07:51 PM

You can't in Canada. 12 outlets is the limit.

steel dude 10-27-2008 10:42 AM

Most of my house has 15 amp breakers and 14 gauge wiring; orig. owner/builder thought he was saving money. Now, when lights are on and the wife runs the high amp vacuum...pop...breaker reset. there also should have been more home runs in the kitchen but no, not this guy. My house in Durango, CO had all 20 amp and 12 gauge wiring and never had a problem. IMHO one will never be sorry for running 20 amp on 12 gauge albeit more expensive initially.

chris75 10-27-2008 05:51 PM

Quote:

Originally Posted by steel dude (Post 177400)
Most of my house has 15 amp breakers and 14 gauge wiring; orig. owner/builder thought he was saving money. Now, when lights are on and the wife runs the high amp vacuum...pop...breaker reset. there also should have been more home runs in the kitchen but no, not this guy. My house in Durango, CO had all 20 amp and 12 gauge wiring and never had a problem. IMHO one will never be sorry for running 20 amp on 12 gauge albeit more expensive initially.


Its all in the layout, nothing to do with 20 amp vs 15 amp. And if your kitchen is wired to code, then you got what you got, its not the electricians fault the original builder/owner was cheap.

Mooreski 10-30-2008 03:54 PM

Quote:

Originally Posted by joed (Post 176795)
You can't in Canada. 12 outlets is the limit.

12 devices is the limit which includes switches, recepts, lights and anything else you could think of tying into a circuit... not just receptacles... I would say to the lights on their own circuit and the receptacles on their own as well

Bubbagump 10-30-2008 04:08 PM

The rule of thumb I usually go by is nominal usage should run about 1/2 the circuit capacity. A quick rule of thumb estimation is 100 watts = 1amp. So a 15 amp circuit I will aim to have about 7-8 amps in nominal use. 100 watt lights would be about 8 per 15 amp. Receptacles I usually limit to 8-10 per circuit unless it is some special purpose like for a sump pump or work shop.

chris75 10-30-2008 04:10 PM

Quote:

Originally Posted by Bubbagump (Post 178808)
The rule of thumb I usually go by is nominal usage should run about 1/2 the circuit capacity. A quick rule of thumb estimation is 100 watts = 1amp. So a 15 amp circuit I will aim to have about 7-8 amps in nominal use. 100 watt lights would be about 8 per 15 amp. Receptacles I usually limit to 8-10 per circuit unless it is some special purpose like for a sump pump or work shop.

I limit my receptacles to about 100, but it all depends. :)


All times are GMT -5. The time now is 11:24 PM.


Copyright 2003-2014 Escalate Media LP. All Rights Reserved