REZH-4×2+10×(2×0.25)P
RONA
85444929
The Longitudinal Pressure Resistant Watertight Cable is a cutting-edge solution engineered specifically for extreme underwater environments, where reliable power and signal transmission are critical for subsea operations. Meticulously designed to withstand immense hydrostatic pressures and the harshest marine conditions—including strong currents, saltwater corrosion, and temperature fluctuations—this cable guarantees long-term, uninterrupted performance in critical applications such as offshore oil exploration, deep-sea robotics, and subsea infrastructure development. Its robust construction ensures operational stability even in environments where conventional cables would fail within months.
▍Technical parameters
Parameter | Value |
Voltage | 300-1000V |
Temperature Range | Fixed installation: -40℃~90℃ Moving installation: -35℃~90℃ |
Minimum bend radius | Fixed installation: approximately 5x D (cable outer diameter) Movable installation: approximately 10x D (cable outer diameter) |
Flame retardant properties | Compliant with IEC 60332-1 |
Weather resistance | Water resistance, UV resistance, temperature change resistance |
Constructed with a dual-layer reinforced steel armor (galvanized and coated with anti-corrosive polymer) and high-strength polypropylene yarn wrapping, this cable is rigorously tested to resist longitudinal pressures up to 50 MPa. This capability makes it suitable for deployment in depths exceeding 6,000 meters, including abyssal zones where underwater exploration and resource extraction are conducted .
The cable integrates a dual-layer extruded sheath (PVC inner layer for flexibility, Rubber outer layer for toughness) paired with a longitudinally water-blocking core composed of water-swellable tape and powder. This multi-layer design creates an impenetrable barrier against water ingress, ensuring electrical insulation remains intact even after 10,000+ hours of continuous submersion.
Beyond its galvanized steel armor, the cable features a specialized anti-corrosive coating (compliant with ASTM B117 salt spray standards) that protects against saltwater, hydrogen sulfide, and marine microorganisms. This extends its service life to 15+ years in offshore oil rigs, marine observatories, and subsea pipeline monitoring systems.
Equipped with oxygen-free copper conductors (Class 5 stranding) with a minimum purity of 99.99%, the cable offers exceptionally low resistance (≤0.0172Ω/m for 16 AWG) and high current-carrying capacity. This ensures efficient power delivery to underwater sensors, ROV thrusters, and submersible communication equipment.
Fully certified to GB/T 31489.3-2020 (China’s subsea cable standard) and IEC 60502-2 (international marine cable specifications), it seamlessly integrates with global underwater infrastructure projects, including cross-border subsea power grids and international oceanographic research initiatives .
Underwater Exploration & Robotics
ROVs, cameras, thrusters, sonar, torpedoes (inter-device power/signal connection).
Offshore Structures
Ships, docks, bridges (underwater power/signal systems).
Aquaculture
Aeration, feeding, monitoring equipment (reliable power/signal).
Marine Engineering
Subsea oil/gas platforms, cable laying, ocean exploration (power/signal transmission).
Q1: What is the maximum operating depth of this cable?
A: The cable is tested to withstand pressures up to 50 MPa, making it suitable for depths exceeding 6,000 meters—equivalent to the average depth of the Mariana Trench's upper zones.
Q2: Does the cable require special installation equipment?
A: Yes, professional laying equipment with tension control (≤5 kN) and depth-monitoring systems is mandatory to avoid mechanical stress during deployment. We recommend using cable-laying vessels with dynamic positioning systems for precision.
Q3: Is the cable compatible with saltwater environments?
A: Absolutely. Its galvanized armor, anti-corrosive coating, and water-blocking core ensure reliable performance in saltwater, brackish water, and even hypersaline environments (e.g., coastal lagoons).
Q4: What certifications does the cable hold?
A: It complies with GB/T 31489.3-2020, IEC 60502-2, and CE standards, ensuring adherence to safety and performance requirements in both domestic and international markets.
Q5: Can the cable transmit both power and signals?
A: Yes, its multi-core design (available in 1 to 64 cores) supports simultaneous transmission of 3-phase power (up to 600V) and high-speed data (up to 10 Gbps via fiber-optic elements in custom configurations), ideal for integrated underwater systems.
The Longitudinal Pressure Resistant Watertight Cable is a cutting-edge solution engineered specifically for extreme underwater environments, where reliable power and signal transmission are critical for subsea operations. Meticulously designed to withstand immense hydrostatic pressures and the harshest marine conditions—including strong currents, saltwater corrosion, and temperature fluctuations—this cable guarantees long-term, uninterrupted performance in critical applications such as offshore oil exploration, deep-sea robotics, and subsea infrastructure development. Its robust construction ensures operational stability even in environments where conventional cables would fail within months.
▍Technical parameters
Parameter | Value |
Voltage | 300-1000V |
Temperature Range | Fixed installation: -40℃~90℃ Moving installation: -35℃~90℃ |
Minimum bend radius | Fixed installation: approximately 5x D (cable outer diameter) Movable installation: approximately 10x D (cable outer diameter) |
Flame retardant properties | Compliant with IEC 60332-1 |
Weather resistance | Water resistance, UV resistance, temperature change resistance |
Constructed with a dual-layer reinforced steel armor (galvanized and coated with anti-corrosive polymer) and high-strength polypropylene yarn wrapping, this cable is rigorously tested to resist longitudinal pressures up to 50 MPa. This capability makes it suitable for deployment in depths exceeding 6,000 meters, including abyssal zones where underwater exploration and resource extraction are conducted .
The cable integrates a dual-layer extruded sheath (PVC inner layer for flexibility, Rubber outer layer for toughness) paired with a longitudinally water-blocking core composed of water-swellable tape and powder. This multi-layer design creates an impenetrable barrier against water ingress, ensuring electrical insulation remains intact even after 10,000+ hours of continuous submersion.
Beyond its galvanized steel armor, the cable features a specialized anti-corrosive coating (compliant with ASTM B117 salt spray standards) that protects against saltwater, hydrogen sulfide, and marine microorganisms. This extends its service life to 15+ years in offshore oil rigs, marine observatories, and subsea pipeline monitoring systems.
Equipped with oxygen-free copper conductors (Class 5 stranding) with a minimum purity of 99.99%, the cable offers exceptionally low resistance (≤0.0172Ω/m for 16 AWG) and high current-carrying capacity. This ensures efficient power delivery to underwater sensors, ROV thrusters, and submersible communication equipment.
Fully certified to GB/T 31489.3-2020 (China’s subsea cable standard) and IEC 60502-2 (international marine cable specifications), it seamlessly integrates with global underwater infrastructure projects, including cross-border subsea power grids and international oceanographic research initiatives .
Underwater Exploration & Robotics
ROVs, cameras, thrusters, sonar, torpedoes (inter-device power/signal connection).
Offshore Structures
Ships, docks, bridges (underwater power/signal systems).
Aquaculture
Aeration, feeding, monitoring equipment (reliable power/signal).
Marine Engineering
Subsea oil/gas platforms, cable laying, ocean exploration (power/signal transmission).
Q1: What is the maximum operating depth of this cable?
A: The cable is tested to withstand pressures up to 50 MPa, making it suitable for depths exceeding 6,000 meters—equivalent to the average depth of the Mariana Trench's upper zones.
Q2: Does the cable require special installation equipment?
A: Yes, professional laying equipment with tension control (≤5 kN) and depth-monitoring systems is mandatory to avoid mechanical stress during deployment. We recommend using cable-laying vessels with dynamic positioning systems for precision.
Q3: Is the cable compatible with saltwater environments?
A: Absolutely. Its galvanized armor, anti-corrosive coating, and water-blocking core ensure reliable performance in saltwater, brackish water, and even hypersaline environments (e.g., coastal lagoons).
Q4: What certifications does the cable hold?
A: It complies with GB/T 31489.3-2020, IEC 60502-2, and CE standards, ensuring adherence to safety and performance requirements in both domestic and international markets.
Q5: Can the cable transmit both power and signals?
A: Yes, its multi-core design (available in 1 to 64 cores) supports simultaneous transmission of 3-phase power (up to 600V) and high-speed data (up to 10 Gbps via fiber-optic elements in custom configurations), ideal for integrated underwater systems.
