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Old 06-02-2015, 09:26 AM   #16
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"B" in UF-B means it is suitable for burial without a conduit.
Its PVC jacket is extra tough and decay-resistant.
Both UF and UF-B have gray sheaths most of the time.
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Old 06-02-2015, 09:28 AM   #17
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Quote:
Originally Posted by crescere View Post
If I do go under the sidewalk how deep do I have to make the trench under cement?
Check this out:
http://www.xwalk.com/images/Table_30...over_Reqts.pdf

To translate, 18 inches for direct buried, 12 inches if in PVC.
That's from the surface to the TOP of the conduit or the cable.

Last edited by Nutmegger; 06-02-2015 at 09:31 AM.
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Old 06-02-2015, 11:21 AM   #18
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Quote:
Originally Posted by Nutmegger View Post
"B" in UF-B means it is suitable for burial without a conduit.
Its PVC jacket is extra tough and decay-resistant.
Both UF and UF-B have gray sheaths most of the time.
The B has nothing to do with burial. All UF is rated for direct burial. The UF-B is a newer cable that replaced type UF.
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Old 06-02-2015, 11:39 AM   #19
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Originally Posted by rjniles View Post
The B has nothing to do with burial. All UF is rated for direct burial. The UF-B is a newer cable that replaced type UF.
Cerrowire sales rep told me this.
Doesn't mean he's right, but just what I've heard from the sales guy.
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Old 06-02-2015, 11:46 AM   #20
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The B means it has 90 degree C conductors.
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Old 06-02-2015, 01:18 PM   #21
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Quote:
Originally Posted by Nutmegger View Post
"B" in UF-B means it is suitable for burial without a conduit.
Its PVC jacket is extra tough and decay-resistant.
Both UF and UF-B have gray sheaths most of the time.
Quote:
Cerrowire sales rep told me this.
Doesn't mean he's right, but just what I've heard from the sales guy.
Wow, was he working in the paint aisle last week?
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Old 06-02-2015, 04:10 PM   #22
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Wow, was he working in the paint aisle last week?
You'd think I was .. I should know these things
Gettin' old.
I think I should stay retired
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Old 06-04-2015, 01:20 PM   #23
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The guy at HD (he is a retired master electrician) said to use aluminum SER 2224 under the crawl, then put a junction box outside the house, then run aluminum URD 4 in conduit under the sidewalk, and to the panel in the garage. This would be WAY cheaper than $400 for 6-3 UF-B copper.
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Old 06-05-2015, 08:22 AM   #24
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Are there any opinions on the above recommendation? I just want to learn more about this.
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