4 Reasons You Should Never Bury an Extension Cord

Extension cords are not rated for direct burial Even with a waterproof cover, extension cords lack the insulation and sealing needed to withstand underground moisture and pressure.

Moisture will eventually reach the connections Dirt holds moisture, and ground pressure forces water past seals, leading to corroded live connections that create fire and shock hazards.

Building codes require proper underground cable For permanent or long-term underground use, you need UF (underground feeder) cable or direct-burial-rated wire with waterproof splice kits, which are designed for earth contact and temperature changes.

Temporary setups should stay above ground For a weekend party, run the cord on top of the ground and tape connections with electrical tape. If it stays longer, install the correct wiring.