Which reminds me the line to the light in my front yard is barely scratched 
into the ground. I found it while edging a flower bed. Fortunately I didn't cut 
it... Need to locate it again and sink it deeper...
-Curt

      From: Curly McLain via Mercedes <mercedes@okiebenz.com>
 To: Mercedes Discussion List <mercedes@okiebenz.com> 
Cc: Curly McLain <126die...@gmail.com> 
 Sent: Thursday, September 3, 2015 9:12 PM
 Subject: Re: [MBZ] OT: Practical solar application
   
120 V in a residential application is 12"

http://www.irrigation.org/uploadedFiles/Certification/National%20Electric%20Code.pdf
Scroll down to the first table.

18" for commercial in plastic conduit.  24" commercial without conduit.

6" residential for low voltage






>  > WILTON wrote:
>>
>>  Buried mine for about 120' to outbuilding (a little more
>>  than a shed - a shed doesn't usually have a slate roof) 27
>>  years ago all by myself using a flat shovel to make a slit
>>  about 10" deep.
>
>10 inches [25 cm] is not really deep enough to be safe.  A
>child and a shovel, or one swing with a pick can hit that.
>
>I'm remembering 24 in is what NEC specs for protected cable.  I
>don't remember what NEC says about direct burial cable.

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