Replacement 132 kV subsea export cable section for Gwynt y Môr OFTO SSEC3 between approximately KP5.0 and KP12.51, supplied by Sumitomo Electric (SEI).
Sumitomo Electric Industries, Ltd. was awarded a contract by Gwynt y Môr OFTO Plc to supply new 132 kV offshore export cable for the Gwynt y Môr transmission link. The new Sumitomo (SEI) cable was used in a pre‑emptive repair of Subsea Export Cable 3 (SSEC3), where approximately 7.5 km of cable between KP5.0 and KP12.51 was replaced and new field joints were installed. The repaired cable, combining original NKT sections with the new SEI section, was returned to service in July 2022 to improve the reliability and availability of the OFTO export system.