What is the leading cause of underground cable failures?

The leading cause of underground cable failures is often attributed to dig-ins. This occurs when excavation activities inadvertently damage underground cables. Utility lines are typically buried beneath the surface to avoid accidental disruption, but construction or landscaping work can disturb the soil and lead to cable breaches. This type of failure is particularly problematic because it can result in immediate outages and necessitate emergency repairs, posing risks not just to power delivery but also to safety.

While improper insulation, overheating, and poor maintenance can contribute to underground cable failures, dig-ins represent an external risk that is often more preventable through careful planning, awareness of utility locations, and adherence to guidelines regarding excavation. This type of failure prompts the need for improved communication and practices among contractors and utility services to minimize the risks associated with digging near utility lines.