Reliable Power Transmission Beneath the Sea
Our EHV submarine power cables are engineered for the most demanding offshore applications, ensuring safe, efficient, and long-distance electricity transmission. Designed for offshore wind farms, inter-island grids, and cross-border power links, these cables deliver superior performance, reliability, and durability even under harsh subsea environments.
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Key Features
Voltage Range: Up to 500kV AC / ±525kV DC
Conductor Material: High-conductivity copper or aluminum
Insulation: XLPE or Mass-Impregnated Paper (MI), depending on application
Armoring: Single or double steel wire armoring for mechanical protection
Sheathing: High-performance polyethylene, resistant to seawater and corrosion
Design Life: 30+ years of reliable operation under subsea conditions
Applications
Offshore wind farm grid connection
Inter-island and coastal power transmission
Cross-border submarine power interconnectors
Deep-sea renewable energy projects
Manufacturing Excellence
We have invested in world-class infrastructure to ensure the highest quality in submarine cable production:
145-Meter Cable Tower
Our facility features a 145-meter-high vertical cable tower, specially designed for manufacturing extra high voltage submarine cables.German TROESTER Vertical Continuous Vulcanization (VCV) Line
Equipped with the latest TROESTER VCV production line from Germany, we can precisely control insulation eccentricity to within 1.5%, significantly lower than national and international standards.Superior Reliability
This advanced technology ensures:Excellent flame-retardant performance
Extended service life under subsea conditions
Unmatched consistency in insulation quality
This combination of cutting-edge equipment and engineering know-how allows us to deliver submarine cables with world-class safety, performance, and longevity.
Why Choose Our EHV Submarine Cables?
Proven performance in offshore and intercontinental projects
Advanced manufacturing facilities ensuring strict quality control
Compliance with IEC, CIGRÉ, and national standards
Tailored designs for both AC and DC transmission systems
Contact Us
Looking for a reliable partner in extra high voltage submarine power cables?
Get in touch with our technical experts today to discuss your project needs and receive a customized solution.
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