Wire count in 1/2" PVC

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  #1  
Old 08-08-02, 08:09 AM
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Wire count in 1/2" PVC

Code question....

What's the max number of 12 ga wires that can be installed in 1/2" sked 40 PVC?

Max 14 ga?

Thanks.
 
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  #2  
Old 08-08-02, 08:59 AM
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Sparksone42
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You can put 8 #12 thhn conductors in a 1/2" pvc and 11 #14 thhn in a 1/2" pvc. This comes from Table C10 of the NEC
 
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Old 08-08-02, 05:34 PM
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Wgoodrich
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Sparkone42, you really meant to use the word "or" instead of "and" in your statement didn't you using either 8 - 12 or 11 -14 awg conductors but not both at the same time?

I also suspect that you meant using THWN OR THHN and nor RHW or other fat insulated conductors.

Not trying to be picky just trying to aviod a misunderstanding while someone reads your reply and tries to stuff 19 conductors in a 1/2 PVC coduit.

Boy would that be fun !

Wg
 
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Old 08-08-02, 05:41 PM
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Captain Avenger
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Just remember - that's how many conductors you can fit in the conduit.

There are other codes that say you have to DERATE the ampacity of the conductors depending upon HOW MANY you actually put into the conduit.

Please post back if you need more info.


Captain Avenger
 
  #5  
Old 08-11-02, 12:10 PM
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Thanks

Thanks for the info on wire counts in 1/2" PVC
Will be using #12 exclusively
 
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