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#88532 - 06/16/04 08:15 PM UF Cables  
mustangelectric  Offline
Member
Joined: Feb 2004
Posts: 494
Bentonville, AR
Hi,
I am installing some outdoor lighting. There will only be one 120 VAC circuit feeding all the AC devices, pumps and lights. There will be some low voltage lighting in the same ditch but buried at a different depth. While digging I found three conduits feeding an outbuilding from the main residence. These PVC conduits are barely 6 inches deep and definitely have 240 VAC circuits in them. I thought PVC had to be 18 inches and 120 VAC UF cable was 12. 30 volts and lower were 6 inches.

Is there any rule on the number of UF cables in a trench?

Thanks for any replies.

mustang


Electricity has no respect for ignorance!

2017 / 2014 NEC & Related Books and Study Guides

#88533 - 06/16/04 09:14 PM Re: UF Cables  
Ryan_J  Offline
Moderator
Joined: Aug 2003
Posts: 1,374
West Jordan, Utah, USA
No rule on the amount that I am aware of. For burial depths, refer to table 300.5, and notice some of the allowances for dwellings and GFCI protection. [Linked Image]


Ryan Jackson,
Salt Lake City

#88534 - 06/18/04 09:33 PM Re: UF Cables  
electricman2  Offline
Member
Joined: Nov 2003
Posts: 269
Thomasville, NC USA
Sometimes investing in a few bags of Sakcrete is better than digging that extra 6 inches too. [Linked Image]


John


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