Electric Cable under a patio

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  #1  
Old 06-12-01, 09:27 AM
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I am building a brick patio under which I would like to run an electric supply to the other side. The patio will have a 7 inch base of grade 8 and sand. I am in Illinois. The cable will be used to supply an outlet and patio lighting. What type of cable should I use and does it need to be in conduit. What depth should it be buried.

Any ideas welcomed.
 
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Old 06-12-01, 05:59 PM
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If nothing else, I'd use a section of large conduit as a chase under the patio. That way, if your needs change in the future you are already set to make changes without having to go completely around or under your bricks.

Being in a frost zone, I'd go well below your frost line (I'm in FL, so I couldn't even guess what the recommended depth in IL is.
 
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Old 06-12-01, 06:42 PM
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Conduit is a good idea, although probably not required (others can say better than I). If you don't use conduit, you can probably just put UF cable at the bottom of the sand base. Below frost line is not necessary, and not feasible in many areas. Some places have frost lines 4 feet deep.
 
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Old 06-13-01, 02:57 PM
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The UF alone would do the job. Looking ahead of current needs is where using conduit saves your bacon. I'd go a size larger than the minimum to handle the circuit needed right now.
 
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