How a subsea cable is repaired

Subsea cables, which carry critical global data and power transmission, experience failures approximately twice per week worldwide, primarily due to human activities like fishing and anchoring rather than technical faults. While data cable breaks rarely cause major disruptions due to network redundancy, submarine power cables serving offshore wind farms present higher risk due to lack of backup infrastructure. Repairs are complex operations requiring specialized vessels with dynamic positioning systems and can take considerable time when cables are located at extreme ocean depths.