Products

Innovative Technologies. Trusted Performance.

ZTT delivers robust, integrated umbilical cables that serve as vital lifelines for subsea operations, combining power, control, and fiber optic communications in one high‐reliability solution.ZTT’s umbilicals are engineered for critical subsea applications in oil & gas and renewable energy markets. They integrate hydraulic lines, electrical cables, and fiber optics within an armored, multi‐layer structure designed to withstand harsh deep‐sea environments—including pressures up to 3,000 meters, corrosive seawater, and dynamic loads. Our umbilicals support long‐term subsea production control, ROV operations, and real‐time monitoring, and are custom‐designed to ensure reliability over a 20‑30 year service life. Featuring advanced materials and real‐time integrity assessment, ZTT umbilicals offer unmatched performance for modern subsea developments.

Non-Repeatered Submarine Fiber Optic Cable

Up to 1,000-core cables for island-mainland and offshore network telecommunications.ZTT provides a complete portfolio of non-repeatered submarine optical cables certified under UJC Alliance UQJ certification. Designed for medium-distance submarine networks between coastal cities and islands, these cables accommodate up to 96 standard fiber cores with expandable configurations exceeding 1,000 cores for ultra-high-capacity systems. They maintain operational integrity at depths of 8,000 meters.

Dynamic Cable

XLPE insulated fibre-optic composite AC dynamic submarine cable with voltage 66 kV or belowApplicable to offshore wind power, offshore photovoltaic,wave energy systems,offshore oil & gas and other marine power transmission fields, voltage level 66 kV and below, conductor cross-section 800mm² and below, 35 kV and 66 kV three-core crosslinked polyethylene-insulated AC dynamic submarine cables have passed the national new product identification, and the comprehensive technical performance has reached the international leading level.

DC Submarine Power Cables

XLPE insulated fibre optic composite DC submarine cable with voltage of ±525 kV or belowApplicable to offshore wind power, island power interconnection and other marine power transmission field, voltage level ±525 kV and below, conductor cross-section 3000mm² and below, transmission capacity 2 GW and below.

AC Submarine Power Cables

XLPE insulated fibre-optic composite AC submarine cable with voltage 500 kV or belowApplicable to offshore wind power, offshore photovoltaic, island power interconnection and other marine power transmission fields, voltage level 500 kV and below, conductor cross-section 3000mm² and below, transmission capacity 1.5 GW and below, 500 kV single-core, three-core crosslinked polyethylene-insulated AC submarine cables, and other products have passed the national new product identification, and the comprehensive technical performance has reached the international leading level.