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World record for deepest 525kV MI HVDC subsea cable installation at 3,000 meters
Nexans successfully completes electrical testing and visual inspection of a 525kV MI HVDC cable with joint installed at a world-record depth of 3,000 meters during deep-water sea trial. High-voltage testing performed 30% above typical industry standards, confirming robustness of the cable system. Achievement builds on Nexansโ 2,150-meter installation world record set on the Tyrrhenian Link project in December 2025.