Category: Seawater-Resistant Cable
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Shanghai Suoqi Cable - Seawater-Resistant Salt-Alkali Resistant Cable Product Details
In many scenarios facing seawater and saline-alkali erosion, such as marine development and coastal industry, reliable cables are crucial. Shanghai Suoqi Cable focuses on the research and production of seawater-resistant salt-alkali resistant cables, providing ideal solutions for power and signal transmission demands in harsh environments.
1. Application Scenarios
Marine monitoring and exploration: Used to connect marine monitoring buoys, underwater sensors, seabed seismographs, and other equipment, enabling precise and stable transmission of various monitoring data and control signals, supporting marine scientific research and resource exploration. For example, in deep-sea areas for long-term monitoring of ocean currents, water quality, and geological activity, cables must operate stably in complex seawater environments for extended periods.
Offshore wind power generation: Wiring from inside the turbine tower to submarine cable connections, providing stable power transmission for offshore wind farms. It must withstand the mechanical effects of sea breezes and waves, as well as long-term resistance to seawater and salt spray corrosion, ensuring reliable operation of the wind farm.
Coastal industrial facilities: such as salt chemical plants and seawater desalination plants, where both on-site equipment connections and external power supply systems require seawater-alkali-resistant cables. In salt chemical plants, cables must withstand high concentrations of salt and alkali and chemical raw material corrosion to ensure continuous and stable operation of production equipment.
Aquaculture: In marine aquaculture areas, it is used to connect aerators, feeders, underwater lighting equipment, and other devices to meet the power supply and signal transmission needs of aquaculture facilities, ensuring a stable and controllable aquaculture environment.
2. Product Features
Outstanding corrosion resistance
Sheath Material: High-quality polyether-based polyurethane (PUR) is used as the outer sheath material. Its chemical structure is stable and highly resistant to seawater and saline-alkali conditions. Compared with ordinary cable sheaths, the corrosion-resistant lifespan of PUR sheaths in the same harsh environment can be extended several times, effectively preventing the sheath from corrosion, aging, and cracking, thereby protecting the internal conductors and insulation layer.
Special process treatment: The cable's outer surface undergoes a special anti-corrosion coating, further enhancing its protection against corrosion such as salt and alkali and salt spray. Even after long-term exposure to high humidity and high salinity, it maintains good performance.
Outstanding electrical performance
Conductor: High-purity oxygen-free copper is selected as the conductor, processed through multiple fine strands of twisting process, resulting in extremely low resistance, ensuring efficient and stable power transmission and reducing line losses. When transmitting power over long distances, it effectively reduces voltage drops and guarantees normal operation of electrical equipment.
Insulation Materials: The insulation layer uses specially formulated polyethylene (PE) or polyvinyl chloride (PVC), offering high insulation resistance and excellent voltage resistance, capable of withstanding high voltage shocks, preventing leakage and short circuits, and ensuring electrical safety. Even in harsh environments such as seawater immersion and high humidity, its insulation remains stable and reliable.
Excellent mechanical properties
Tensile strength: High-strength Kevlar fibers or galvanized steel wires are added inside the cable, significantly enhancing the overall tensile strength. In marine environments, cables may be subjected to external forces such as water currents or equipment draging. High tensile performance ensures the cable won't break easily, maintaining continuity in power and signal transmission.
Wear and pressure resistance: PUR sheaths are not only corrosion-resistant but also have excellent wear resistance, effectively resisting scratches and wear from underwater rocks, coral, and other objects. At the same time, the cable structure is reasonably designed, providing certain compression resistance and can withstand a certain degree of external compression, ensuring internal structural integrity without affecting electrical performance.
Waterproof and moisture-proof performance
Longitudinal watertight design: Advanced waterproofing processes and materials are used to achieve longitudinal watertightness of cables, preventing seawater from penetrating along the cable's axial direction, preventing performance degradation of conductors and insulation layers due to moisture. Even if cables are submerged underwater for long periods or encounter tidal changes, they maintain good electrical performance.
Applications of moisture-proof materials: Special moisture-proof materials are added between the insulation layer and the sheath to further prevent moisture ingress, improving cable reliability in humid environments.
3. Cable Structure
Conductor: Made by twisting multiple strands of high-purity, oxygen-free fine copper wire, the conductor structure and cross-sectional area can be flexibly adjusted according to cable specifications and usage scenarios to meet different current-carrying capacity requirements. This multi-strand strand structure gives the cable good flexibility, making installation and laying easy.
Insulation layer: Special PE or PVC insulation materials are selected to tightly wrap the conductor. The insulation material undergoes strict selection and performance testing, offering excellent electrical insulation, chemical corrosion resistance, and flexibility, effectively isolating the conductor from the external environment to ensure safe and stable power transmission.
Shielding layer (optional): For applications sensitive to electromagnetic interference, cables can be equipped with tin-plated copper wire braided shielding layers or aluminum foil shielding layers. The shielding layer effectively blocks external electromagnetic interference, preventing distortion or bit errors caused by interference during signal transmission, ensuring accuracy and stability of signal transmission.
Tensile components: High-strength Kevlar fibers or galvanized steel wires are installed at the center of the cable or evenly distributed among the insulating cores. These tensile elements are tightly integrated with conductors, insulation layers, and other components, jointly bearing the tensile forces experienced during use, ensuring mechanical performance in harsh environments.
Jacket: The outermost layer is a polyether-based polyurethane (PUR) jacket, which has a smooth surface that reduces water flow resistance and minimizes wear in marine environments. PUR jackets are usually black in color, have good weather resistance, and effectively resist UV radiation to prevent aging. Its thickness is optimally designed according to the cable specifications and usage requirements, providing comprehensive protection for the cable.
Shanghai Suoqi Cable's seawater and salt-alkali resistant cables, relying on advanced technology, high-quality materials, and strict production processes, provide reliable and durable cable solutions for various applications in marine and coastal fields. Whether in complex marine environments or harsh industrial production scenarios, they can meet your high requirements for cable performance.
