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.
submarine-power-cables
Key Features
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Voltage Range: Up to 500kV AC / ±525kV DC
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Conductor Material: High-conductivity copper or aluminum
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Insulation: XLPE or Mass-Impregnated Paper (MI), depending on application
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Armoring: Single or double steel wire armoring for mechanical protection
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Sheathing: High-performance polyethylene, resistant to seawater and corrosion
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Design Life: 30+ years of reliable operation under subsea conditions
Applications
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Offshore wind farm grid connection
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Inter-island and coastal power transmission
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Cross-border submarine power interconnectors
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Deep-sea renewable energy projects
Manufacturing Excellence
We have invested in world-class infrastructure to ensure the highest quality in submarine cable production:
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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
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Extended service life under subsea conditions
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Unmatched consistency in insulation quality
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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?
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Proven performance in offshore and intercontinental projects
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Advanced manufacturing facilities ensuring strict quality control
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Compliance with IEC, CIGRÉ, and national standards
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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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