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Old 11-02-2012, 07:44 AM   #1
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preferred wiring method


Sorry for the crude drawing. I would like to know how the pros would go about wiring this? I know CODE is black and white but I think that wiring methods are a grey area and go along with many years of doing this sort of stuff and finding out what is easier/more efficient. Would anyone prefer one way or the other? Or is either way perfectly fine? The only thing I can see is that method #2 would put more wiring in the light boxes as opposed to #1.



Last edited by langless28; 11-02-2012 at 10:12 AM.
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Old 11-02-2012, 08:07 AM   #2
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and even after verifying it looked right in preview post, its showing up wrong in the browser (no spaces) let me see if i can get a drawing done

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Old 11-02-2012, 08:27 AM   #3
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preferred wiring method


Keep in mind other people reading this do not know anything about what you are doing...

You mention black and white, but I see no reference to that in the diagram?

Then what is...
"S3"?
"L"?
"-"?
"/"?

And in general what are you wiring? Example: "I am wiring 3 ceiling light fixture boxes and one switch." or "I am wiring 3 ceiling light fixture boxes to two 3-way switches".
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Old 11-02-2012, 09:03 AM   #4
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Quote:
Originally Posted by langless28 View Post
*===============================S3 (power here too)
*
* L------------L L
* / / /
* / / /
* / / /
* /L L-------------L
* /
* /
* /
* /
* /L
* /
* /
* S3


-or-


*===============================S3 (power here too)
*
* L------------L----------- L
* / / /
* / / /
* / / /
* /L L L
* /
* /
* /
* /
* /L
* /
* /
* S3
Are you kidding?? Do you expect most on this forum to know Egyptian hieroglyphics?

Most computers have microsoft paint.. use that to draw simple diagrams:
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preferred wiring method-lite-20power-20in-20to-20fan-20light-20combo-6.jpg  
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Old 11-02-2012, 09:10 AM   #5
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preferred wiring method


yes i realize that looks bad, i assure you it looked ok in the preview window. anyway here is a picture of what i want to do, which wiring method is best practice? S3 is a 3way dimmer switch and the R is recessed lighting.

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Old 11-02-2012, 09:51 AM   #6
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preferred wiring method


Several different ways to look at this (in general)...

Cost of wire: If you are a contractor building 50 homes, then using less wire on each home could add up to a lot of money in savings. So in that case, the method which would use the least amount of wire.

Then "box fill": There is a limit to the number of wires you can have in a certain size electrical box or light fixture electrical box. This is called "box fill".

Troubleshooting in the future: It is most common for wires to go from one fixture to the next like your second drawing. So if two fixtures were not working, it would be a good guess that there was a problem at the first non-working fixture or the last working fixture. So easier to troubleshoot (although a good electrician with good testing tools can troubleshoot anything.)

Fighting the wires / packing into box: Easier to cram 2 romex wires into a box than 3!
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Old 11-02-2012, 09:52 AM   #7
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preferred wiring method


I'm not sure there's a "preferred" way to wire this. Either will work.
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Old 11-02-2012, 09:52 AM   #8
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still does not help much...here is how your post showed up:
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Old 11-02-2012, 10:15 AM   #9
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preferred wiring method


thanks billy bob, i did check with the halo electrical boxes beforehand, i can have a max of 3x #12 wires in there. you brought up some good points about trouble shooting. hammerlane, it appears to be working for other people.
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Old 11-02-2012, 10:30 AM   #10
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Quote:
Originally Posted by langless28 View Post
hammerlane, it appears to be working for other people.

its working now for me...nice diagram by the way. Doesnt seem to be much difference other than box fill for the last four lites in the run. As mentioned prior, both will work. Flip a coin and decide.
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Old 11-02-2012, 11:46 AM   #11
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preferred wiring method


Are you going to have a light over the sink?
Are you going to have undercabinet lights?

Bring the power into the far switch, feed the second switch with the 3 wire, then run the switch leg to the first can, and then each can forward.
I try to never have 3 cables in any can light.
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Old 11-02-2012, 12:51 PM   #12
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yes under cabinet lighting (not in picture) power will go to the top right (of picture) switch. there will be a j-box under the floor (unfinished basement) to feed the pot lights, under cabinet, and two exterior lights off the lighting circuit.

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