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Direct buried cable is governed by many building and electrical code rules to ensure safe installation. Always check with your local building department to learn about specific requirements in your area. Here are some basic guidelines to keep in mind:
Bury UF cable 18 inches deep or deeper, depending on the local code requirements.
Call the national Call Before You Dig hotline at 8-1-1 several days before starting a project. This will alert all utilities with service lines in your area, and a representative will come out and mark the lines on your property so you know where you can and cannot dig.
• Calculate for voltage drop when running a long distance with underground cable. You may need to use a larger cable to minimize a loss of voltage over long runs.
• Create a map of your property showing where you installed underground wiring, and store it in a safe place where it can be referenced for future projects. Wiring may need to be run on an angle from your home, so be sure to use something as a reference from point to point.
