Submarine & Deep-Sea Cables | High-Voltage Power, Fiber Optic & ROV Solutions (DNV/ITU)

Submarine & Deep-Sea Cables | High-Voltage Power & Fiber Optic Solutions (DNV/ITU Certified)

220kV XLPE HVAC (IEC 63026/CIGRE TB 490):
- Capacity: 500 MW.
- Design: Triple-layer HDPE armor, carbon-coated conductor for corrosion resistance.
- Applications: Offshore wind farm interconnections, island power links.
±525kV XLPE HVDC (CIGRE TB 623/IEC 62895):
- Capacity: 2000 MW.
- Depth Rating: 2000m.
- Certifications: DNVGL-ST-0359, IEC 62895.
- Applications: Transcontinental undersea grid interconnects (e.g., Europe-Asia).

Titanium-Armored Cables (DNV-OS-E402):
- Voltage: 6.6kV.
- Depth Rating: 3000m.
- Design: Titanium alloy braid, dynamic bend radius <5D.
- Applications: Subsea mining ROVs, crawler systems.
Hybrid Power+Control Cables (ISO 13628-5/API 17F):
- Voltage: 3.3kV + 24V control.
- Features: Torsion-resistant, polyurethane jacket for abrasion protection.

OS2 G.654 (ITU-T G.973):
- Fiber Type: Single-mode.
- Span: 200km (unrepeatered).
- Attenuation: ≤0.17 dB/km @1550nm.
- Applications: Transoceanic backbone networks, hyperscale data centers.
24-Fiber SDM (ITU-T G.977.2):
- Capacity: 250 Tbps per pair.
- Design: 16-core fiber, reduced cable diameter for high-density deployment.
- Features: Earthquake-resistant, SDM transceiver compatibility.

Branching Unit Cables (ITU-T G.977.1):
- Voltage: 10kV DC (repeater power).
- Design: Splice-free power/signal integration.
- Applications: Submarine cable branching networks.
Armored Shallow-Water Cables:
- Depth Rating: 500m.
- Design: Double-layer galvanized steel armor, PE sheath.
- Applications: Coastal telecom, offshore oil platform connectivity.

Dynamic Inter-Array Cables (IEC 62680):
- Voltage: 66kV.
- Features: Bend-optimized for floating wind turbines.
Subsea Monitoring Cables:
- Hybrid Power + Fiber (ISO 13628-5):
  - Integrated sensors for temperature/pressure monitoring.
- Applications: Oceanographic research, seismic monitoring.