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edjake3080

06:45AM | 11/13/06
Member Since: 11/12/06
5 lifetime posts
Bvelectrical
Looking to install a new light , I bought 12-2 wire now theres a circuit id like to tap into with an outlet that is in my utility room 20 amp thou. Is it ok to use this for a light. (light is a 5 light track light) or should I find a 15 amp circuit does it really matter if I use the 20 amp for the light. I believe this outet I want to use is ran straight back to the panel right now my washer is pluged into it. Please avise.

I have a light I could tap into but theres all ready an outlet someone else tap into and ran off of. 15 amp circuit. If i shouldnt use the 20 amp is the 12-2 wire ok to use on the 15 amp circuit.

Billhart

08:34AM | 11/13/06
Member Since: 04/25/05
1915 lifetime posts
Yes, you can run #12 and tap off of a 20 amp circuit.

However that circuit is the laundry circuit and can't have lights on it.

Likewise you can not use the following circuits. Kitchen and bathroom receptacles. And those for builtin applinaces including furnaces.

You can tap into other circuits that serve lights or general purpose receptacles. You just need to look at the new load (number and size of the bulbs) and what is on the existing circuit.


edjake3080

08:49AM | 11/13/06
Member Since: 11/12/06
5 lifetime posts
Ok i understand... About keeping the circuits Separately now Is there a problem using my 12-2 wire on a 15 amp ciruit

Billhart

09:10AM | 11/13/06
Member Since: 04/25/05
1915 lifetime posts
Yes, you can use a #12 on a 15 amp circuit.

And sometimes it is done on purpose such as when you have a long run and need to reduce the voltage drop.

Or I was working on an old house and saw that some changes had been made where they added some new circuits using #15 on 20 amp circuits. Too many places to try and find them all so I changed the breakers to 15 amp.

But in general, while not illegal, it is though to be bad practice to use #12 on 15 amp circuit. Someone in the future might see that and thing that it is a 20 amp circuit and add more on to it and/or change the breaker to a 20 amp.


edjake3080

10:24AM | 11/13/06
Member Since: 11/12/06
5 lifetime posts
What should I do......best

I pre ran a light from the ceiling cut out the hole mounted the light and made my connections. Now I ran the wire thru the wall down the wall and cut another hole and added my switch. I then continued down threw the floor to the basement where I m trying to figure out what to do. Id like to get your insight on what to do

Now all my stuff above was run with 12-2 wire.

Should I connect the 12-2 wire I ran to a 15 amp circuit light if theres room.... this light is 15 amp 14-2 wire. will this be fine??? Should I redo all my work with 14-2 wire. connect there to the 14-2

Run this thing on 12-2 to the panel and put in a 15 amp breaker. Or just start over pull out my work start over with 14-2 and run it to the panel 15amp. Im not sure what I can get away with

therethru the wall

Billhart

11:53AM | 11/13/06
Member Since: 04/25/05
1915 lifetime posts
As I said there is nothing in the code prohibiting #12 wire on a 15 amp circuit.

So you can run it to the existing 15 amp circuit.

Just not the best practice.

If it is not "too" much work I would suggested replacing it with #14.

But it is up to you what "too much" is.

But looking at your description I suspect that it would be a fair amount of work to replace it.


edjake3080

05:22AM | 11/14/06
Member Since: 11/12/06
5 lifetime posts
thanks I tapped into a 15 amp circuit and did not have to run to the panel tested the breaker and counted all the outlets , lights on the circuit. I redid all the wiring
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