“This qualification marks the next step in our continuous development of HVDC cable technology,” said Anders Jensen, Chief Technology Officer at NKT. “The higher temperature capability increases the power transmission capacity while giving customers greater flexibility in how they design and optimize their cable systems. With this advancement, we can help our customers increase transmission capacity with cost-efficient solutions that can be deployed within existing HVDC infrastructure.”
The new power cable system strengthens NKT’s position as a technology leader and supports the growing demand for efficient, reliable, and high-performing HVDC systems for offshore wind, hybrid interconnectors, and future cross-continent transmission lines.
The increased operating temperature is based on NKT’s market-leading technology platform and enabled by an upgrade of the insulation system. The inner and outer semiconductive layers have been redesigned using a new material developed and qualified in a joint project between NKT and material partner Borouge International (formerly Borealis). This enhancement forms the core of the improved thermal performance of the cable system and supports the long-term reliability and robustness required for critical transmission infrastructure.
“As a global technology leader in advanced polymer solutions for extruded cable systems, Borouge International brings a strong track record in power transmission infrastructure, as well as extensive innovation capabilities and deep technical expertise,” said Bart Verheule, Vice President Marketing, Energy, Borouge International. “The qualification of LE0650DC, our new semiconductive material developed as part of our long-term collaboration with NKT, marks another important milestone in advancing HVDC cable technology.”
NKT’s new 90°C technology portfolio includes power cables with voltage levels of up to 525 kV HVDC for both on- and offshore installation as well as power cable accessories.
