While direct burial is cost-effective, it presents a higher risk of problems and failures compared to other methods. The most common issues include:

• Mechanical Damage: The most frequent cause of failure is accidental damage from third-party excavation. Without a protective duct or tile, a cable is highly vulnerable to being struck by digging equipment.

• Moisture Ingress: Poorly sealed joints or damaged cable jackets can allow moisture to penetrate the cable, leading to insulation breakdown and short circuits.

• Thermal Issues: Incorrect backfill material can prevent the cable from dissipating heat effectively, leading to overheating, reduced lifespan, and potential failure, especially under heavy load.