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burial depth for branch line? #5938
12/15/01 10:10 AM
12/15/01 10:10 AM
B
bayala13  Offline OP
Junior Member
Joined: Dec 2001
Posts: 2
ia
Does anyone know the underground depth required by NEC for branch line? It is about a 100' run to a pole building 100 amp service. 220v...? thanks

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Re: burial depth for branch line? #5939
12/15/01 10:32 AM
12/15/01 10:32 AM
J
Jim M  Offline
Member
Joined: Aug 2001
Posts: 457
Chestertown, MD, USA
You would need to provide the following info: voltage, what is it being buried under, wiring method etc.

Re: burial depth for branch line? #5940
12/15/01 02:27 PM
12/15/01 02:27 PM
G
George Corron  Offline
Member
Joined: May 2001
Posts: 717
Lorton, Va USA
Your burial depth does depend on if you're using conduit, or direct burial cable. The answer comes from Table 300-5. Assuming we are NOT going under a street, roadway, driveway but merely across a yard. Rigid conduit = 6", direct bury cable = 24", UF = 18". If your conditions are different, let us know.


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