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#5938 - 12/15/01 07:10 AM burial depth for branch line?
bayala13 Offline
Junior Member
Registered: 12/15/01
Posts: 2
Loc: 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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#5939 - 12/15/01 07:32 AM Re: burial depth for branch line?
Jim M Offline
Member
Registered: 08/10/01
Posts: 457
Loc: Chestertown, MD, USA
You would need to provide the following info: voltage, what is it being buried under, wiring method etc.
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#5940 - 12/15/01 11:27 AM Re: burial depth for branch line?
George Corron Offline
Member
Registered: 05/16/01
Posts: 717
Loc: 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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