Residential circuit must have GFCI protection and maximum overcurrent protection of 20A. Raceway must be listed for direct burial without concrete encasement.Residential branch circuits 120VAC or less Rigid metal conduit or intermediate metal conduit Typical Underground SEC or Electrical Wire Burial Depthĭirect Burial of SEC Cabling or Conductors Watch out: Your local electrical inspector is the final legal authority on the required depth at which to bury an electrical service entry cable, but here are some common depths: How deep below the ground surface or below a concrete slab, walk, or a driveway must we bury electrical service entry cabling? Underground Electrical Service Burial Depth Del Puerto Avenue, Suite B, 134, Patterson, CA 95363 Email: Web:, - retrieved 4, original source:
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