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Posted By: bayala13 burial depth for branch line? - 12/15/01 03:10 PM
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
Posted By: Jim M Re: burial depth for branch line? - 12/15/01 03:32 PM
You would need to provide the following info: voltage, what is it being buried under, wiring method etc.
Posted By: George Corron Re: burial depth for branch line? - 12/15/01 07:27 PM
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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