How Deep Should Electrical Lines Be Buried?

By Staff WriterLast Updated Apr 11, 2020 12:45:30 AM ET
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Consumer and small commercial electrical lines must be buried between 6 and 24 inches underground, while large commercial and industrial lines must be buried between 30 and 36 feet underground. Electrical lines for carrying current to a home or building must be buried deep enough to avoid digging accidents by homeowners and others.