Fixing 3 way wiring snafu

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  #1  
Old 06-29-16, 10:53 PM
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Fixing 3 way wiring snafu

Long story short, I'm finishing my basement. My "helper" removed existing wiring to try and "help". It needed to be done, but first I was planning on documenting how everything was wired so I could put it back together after I moved a switch box. The documentation didn't happen and now I'm left guessing.

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This is what I think was the layout before. I know a few pieces for sure.
1. Power came to the light 1.
2. 12/2 ran directly from light 1 to light 2.
3. 12/3 ran from SW1 to SW2.

Beyond that, I'm begging for some assistance. Of the diagrams I've seen, I can't really match up in my mind with what I have.

Thanks
 
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Old 06-29-16, 11:01 PM
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Welcome to the forums.

So that is the wiring that is in place now ? It looks ok.
Are any wires currently on the switches ?

I can draw you a connection diagram.
 
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Old 06-29-16, 11:02 PM
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Ok, the power in white will go the the fixtures.

The white in cable between L1 and Sw1 will splice the white to the power in black and to the white between SW1 and Sw2. It will go on the common of Sw2. It should be remarked as a hot.

The black between L1 and Sw1 splices to the fixture black and goes on the common of Sw1.

The above will not satisfy the code requirement for a neutral at the switch location.

Cable between SW1 and SW2 has the blk/red as travelers.
 
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Old 06-29-16, 11:07 PM
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Hooked up currently:
12/3 is connected at SW2
12/2 is connected at Light 2.
These are at the top of the stairs...that would have taken too much work for my helper to have pulled out. They are currently running to the basement and hanging.

A diagram would be great. I think I am following PCBoss said, but I'm a visual person.

Oh, and this was hooked up originally in '97, so unless something in the code changed (I know many things have), it was up to code at that time.
 
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Old 06-30-16, 12:35 AM
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Does not meet 2011 or later codes.

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Last edited by ray2047; 06-30-16 at 01:43 AM.
  #6  
Old 06-30-16, 10:47 PM
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So I understand how to hook it up and THANK YOU!

Next question, 2 replies both say this works but isn't up to NEC 2012. This happens to be the code my town follows.

Since I have the resources, what could I do or redo to bring this up to at least 2012?
 
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Old 06-30-16, 11:22 PM
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Moving power from light one and connect instead at switch two is ideal.
 
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Old 06-30-16, 11:31 PM
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Replace the 2-wire cable between the light and the switch with a 3-wire cable. You would use the red and black wires for power in and power out. The white would be connected to neutral at the light and capped with a wire nut at the switch.

Name:  3-Way_Sw-Lp_2011.jpg
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  #9  
Old 06-30-16, 11:45 PM
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Ray- if I went your route would I just tie into light 2 hot to hot and neutral to neutral at light 1?
 
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Old 07-01-16, 01:21 AM
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Yes, the second light is connected to the hot and neutral of the first light.

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Last edited by ray2047; 07-01-16 at 01:39 AM.
 

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