"Doug Miller" wrote in message
...
In article , "John Grabowski"
wrote:

wrote in message
.. .
An electrician is burying an unprotected UF-B wire on my property. In
places it is approximately 4" (yes inches) below grade. I am quite
certain
this does not meet code. Can anyone tell me:
Minimum depth for buried wire w/no conduit
Minimum depth with electrical PVC Conduit
Minimum depth with electrical emt Conduit

Thanks!!


Generally speaking 24" is minimum for UF (18" for one and two family
homes)
and 18" for PVC.

I don't find the exception for one and two family homes in the 2005 NEC.



Table 300.5 Column 1, 6th row. Now that I read it again it might be for
only under driveways.




EMT is not permitted for direct burial

John, do you have a Code cite for that? I'm not disputing you, I'm
curious. I
didn't think it was permitted, either, but I couldn't find anything that
said
one way or the other. Article 358.10(B) says it's permitted "in direct
contact
with the earth" but doesn't mention burial; but 358.12 does not list
burial as
a use not permitted.



Doug you are right. It can be construed from 358 that it is permissible to
direct bury EMT. It's something that I have never done nor do I recall ever
seeing EMT put directly in the ground. I'm not sure what fittings one would
use. Raintight?