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Old 06-12-2010, 07:37 PM   #1
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Numbers of wires in one hole.


I went to my friends house and i noticed that they ran a 10-3 wire,12-2,14-2 in one hole through the bottom plate of the floor.

Im just curious, what size of hole would you need to run 3 14-2 wires in one hole in the studs.

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Old 06-12-2010, 08:52 PM   #2
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Numbers of wires in one hole.


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i went to my friends house and i noticed that they ran a 10-3 wire,12-2,14-2 in one hole through the bottom plate of the floor.

Im just curious, what size of hole would you need to run 3 14-2 wires in one hole in the studs.
7/8".

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Old 06-12-2010, 09:38 PM   #3
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Numbers of wires in one hole.


That would be covered under "Bundleling " in the N.E.C.
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Old 06-12-2010, 10:30 PM   #4
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Numbers of wires in one hole.


thanks for the response
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Old 06-13-2010, 09:14 AM   #5
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Numbers of wires in one hole.


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That would be covered under "Bundleling " in the N.E.C.
Not really if it is a bottom plate. There is a good chance that these wires are not following the same path for any distance.

What would apply is the firestop derating rule in 334.80.
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