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Old 08-25-2008, 12:07 PM   #1
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Wiring a new outlet advice


I am adding a new outdoor outlet on my house. I am planning on wiring from an existing interior outlet. Upon removing the interior outlet I notice that there are two white wires(one each) on the non copper screws and two black wires(one each) on the copper screws on the sides of the outlet. When I have added extra outlets in the past, I have always had one set of the outlet screws open and I have just wired accordingly. Since all of the wires are being used, can I just pigtail the wires and go from there? For my own purposes, why might the wires have two white on one side of the outlet and two on the other? Isn't it normally one on each side? Thanks!

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Old 08-25-2008, 12:32 PM   #2
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Yes, you will need to pigtail.

The reason there are 4 wires (2 bl and 2 w) is 1 set is for the incoming power, and 2 feed another device down the line.

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Old 08-25-2008, 12:32 PM   #3
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Wiring a new outlet advice


The receptacles with 2 wires on each side are middle of a run. Power comes inon one cable and continues out to other parts of the circuit on the other cable.

Using a pigtail is the proper method to continue the wiring.

Note that bathroom, laundry and kitchen/dining receptacle circuits cannot be extended for exterior use.
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Old 08-25-2008, 12:42 PM   #4
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Wiring a new outlet advice


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Originally Posted by kennykenny View Post
I am adding a new outdoor outlet on my house. I am planning on wiring from an existing interior outlet. Upon removing the interior outlet I notice that there are two white wires(one each) on the non copper screws and two black wires(one each) on the copper screws on the sides of the outlet. When I have added extra outlets in the past, I have always had one set of the outlet screws open and I have just wired accordingly. Since all of the wires are being used, can I just pigtail the wires and go from there? For my own purposes, why might the wires have two white on one side of the outlet and two on the other? Isn't it normally one on each side? Thanks!

Typical installation would have all of the hots (blacks) wire nutted together with a single wire "pigtail" also under the wire nut to hook up to the recep. Same on the neutrals (whites) and the grounds (bare).

Done this way if you lose a recep you don't lose the rest of the circuit.
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Old 08-25-2008, 12:57 PM   #5
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JimPort---why is it that bathroom, laundry,kitchen/dining receptacle circuits cannot be extended for exterior use? That is what I was hoping to do. The receptacle is in the dining area below a window with nothing plugged into it and never used. Is it a code or safety thing?
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Old 08-25-2008, 01:18 PM   #6
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Wiring a new outlet advice


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JimPort---why is it that bathroom, laundry,kitchen/dining receptacle circuits cannot be extended for exterior use? That is what I was hoping to do. The receptacle is in the dining area below a window with nothing plugged into it and never used. Is it a code or safety thing?
It is a code violation.
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Old 08-25-2008, 05:32 PM   #7
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It is a code violation.
Reference??
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Old 08-25-2008, 07:53 PM   #8
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Reference??
Sml Appl (Kitch/Dining) 210.11(C)(1) which refers to 210.52(B). [No other outlets 210.52(B)(2)]

Laundry 210.11(C)(2)

Bath 210.11(C)(3)
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Old 08-26-2008, 08:20 AM   #9
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Typical installation would have all of the hots (blacks) wire nutted together with a single wire "pigtail" also under the wire nut to hook up to the recep. Same on the neutrals (whites) and the grounds (bare).

Done this way if you lose a recep you don't lose the rest of the circuit.
BTW, it is not REQUIRED to pigtail...


just sayin...



Quote:
Originally Posted by kennykenny View Post
JimPort---why is it that bathroom, laundry,kitchen/dining receptacle circuits cannot be extended for exterior use? That is what I was hoping to do. The receptacle is in the dining area below a window with nothing plugged into it and never used. Is it a code or safety thing?
Basiclly, the code says that those areas (kitchen, bath and laundry) are required to have certain circuits, and that they CANNOT serve other areas unless specified, such as a bathroom can supply another bathroom, or SABC in a kitchen can supply the dining rooom.
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Old 08-26-2008, 10:04 AM   #10
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BTW, it is not REQUIRED to pigtail...


just sayin...



Did I say it's required?

I said it's a typical installation method.
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Old 08-26-2008, 11:07 AM   #11
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Wiring a new outlet advice


You are required to pigtail the grounded wire (white) on a multi-wire branch circuit.
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Old 08-26-2008, 11:17 AM   #12
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Wiring a new outlet advice


For the outdoor outlet, I will assume that a GFCI is going to be used.

As for the bathroom/kitchen issue, I was considering extending an already GFCI protected circuit in the basement bathroom to a new outlet outside, but decided against it.
My thinking wasn't code, but that I wouldn't want someone in the br to be left in the dark (I know, lights aren't supposed to be on the GFCI anyway, but this is going to be rewired soon) if my electric lawnmower causes the breaker to trip.

I wired to another GFCI, also located in the basement, but not in the bathroom.
At the same time, I added a new outlet in the basement on the GFCI protected circuit.

FW
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Old 08-27-2008, 05:25 AM   #13
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Wiring a new outlet advice


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Did I say it's required?

I said it's a typical installation method.

Maybe in MN...



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(I know, lights aren't supposed to be on the GFCI anyway, but this is going to be rewired soon) if my electric lawnmower causes the breaker to trip.
There is nothing against lights being GFI.

I've never understood the thinking about being left in the dark when a GFI trips. I mean really, most bathrooms Ive ever been in are like 3 steps to the door! Oh well...
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Old 08-27-2008, 07:33 AM   #14
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There is nothing against lights being GFI.

I've never understood the thinking about being left in the dark when a GFI trips. I mean really, most bathrooms Ive ever been in are like 3 steps to the door! Oh well...

What if you were sitting there and the GFI tripped leaving the lights out? How would you know if you had finished all the paperwork?

Kind of like using motion sensor switching that can't see you in a bathroom with stalls. Stand up and wave your arms wildly and hope for the best or praying for someone to come in so the lights go back on.
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Old 08-27-2008, 08:38 AM   #15
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Maybe in MN...



It is in my house.

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