Articles about underground wiring
Does the electrical code allow you to run UF cable in concrete? Installing Buried Electrical Cable, The Minimum Covering Requirements for UF Cable.
Can UF Cable electrical wire be installed into an electrical conduit? How to Install UF Underground Feeder Cable for Electrical Wiring.
Wiring a Sub Panel for a Garage: Wire Size for a 100 amp Garage Panel, Factors that need to be considered when selecting and sizing the wire size for a sub panel.