Published: 2026-09-10
Product Introduction
The seawater-resistant network cable series launched by Shanghai Suoqi Electric Wire & Cable Co., Ltd. is specially designed for Ethernet signal transmission in marine platforms, ships, ports, underwater equipment, and coastal high-salinity fog environments. While meeting network transmission performance requirements, it focuses on solving long-term reliability issues under seawater immersion, salt fog corrosion, and humid environments. It is widely used in marine engineering monitoring, underwater video, ship networks, and marine ranch systems, and supports customization according to Cat5e/Cat6 category, shielding type, and armored structure.
Operating Condition Pain Point Analysis
Ordinary network cables fail very quickly in marine environments, with problems concentrated in several areas. First, insufficient water tightness. Ordinary network cable sheaths do not have water-blocking designs, allowing moisture to seep through gaps or ends of the sheath, causing changes in capacitance and impedance mismatch between pairs, resulting in network connections and intermittent connections. Second, salt spray corrosion. Chloride ions in seawater are highly corrosive to copper conductors and shielding layers. Once corroded, the shielding braided layer loses its anti-interference capability, causing transmission attenuation to rise sharply after conductor corrosion. Third, sheath aging. Ordinary PVC sheaths rapidly harden and crack under the combined effects of ultraviolet and salt spray. Fourth, mechanical external forces. Underwater dragging, tidal fluctuations, and hull vibrations cause the cable to repeatedly stretch and bend, causing structural loosening and electrical performance deterioration. Fifth, shielding and grounding failure. Improper grounding treatment of the shielding layer in water-related environments can cause potential corrosion, accelerating cable failure.
Product Technology Analysis
From the perspective of raw material selection, seawater-resistant mesh wire conductors use multi-stranded finely stranded tinned copper wires, with the tin plating layer isolating chloride ions from corrosion of the copper substrate; Wire insulation uses low-loss materials to ensure stable characteristic impedance. The shielding layer uses aluminum foil combined with tin-plated copper braided structure, balancing high-frequency shielding and corrosion resistance. The sheath uses polyurethane or special elastomer materials resistant to hydrolysis and salt spray; some models use water-blocking fillers and water-blocking tapes to prevent moisture from penetrating longitudinally. Heavy-duty models add galvanized steel wire armor and inner jacket outside the sheath, balancing tensile resistance and rodent bite resistance.
From the perspective of production cable forming processes, the four pairs of wire pairs are precisely twisted at pitch to control crosstalk between the lines; During cable formation, the twisting direction and pitch are designed according to standards, with water-blocking filling and wrapping to ensure roundness and longitudinal water blocking. The shielding layer is longitudinally wrapped and braided, with high and continuous weaving density, and grounding and drainage lines ensuring continuous shielding. The armored model uses steel wire armor and double-layer sheath structure; the inner sheath isolates water vapor, while the outer sheath resists wear and corrosion. Sheath extrusion uses an extrusion process to ensure density, no porosity, and reliable watertightness. Before leaving the factory, batch-by-batch tests are conducted on watertightness, salt spray resistance, characteristic impedance, and echo loss to ensure long-term stable operation in the marine environment.
Applicable scenarios
Marine Platform: Platform monitoring and data network cabling
Ships: Onboard networks, navigation, and communication system connections
Port terminals: Shore power and monitoring network wiring
Underwater Equipment: Underwater cameras, detectors, ROV connections
Marine Ranch: Underwater monitoring system signal transmission
Coastal Facilities: Outdoor network cabling in high salt-fog environments
Core Product Advantages
Seawater-Resistant Design: Water-blocking structure, hydrolysis-resistant jacket, suitable for long-term water exposure
Salt-Fog Corrosion Resistance: Tin-plated copper conductors and tin-plated braided layers, resistant to chloride ion corrosion
High Shielding Performance: Aluminum foil and braided double-layer shielding, interference-resistant stable transmission
Optional Armoring: Steel wire armor, tensile-resistant and rodent-proof, suitable for underwater towing
Non-Standard Customization: Supports customization according to network category, shielding, and armoring, direct supply from the factory
A brief introduction to e-commerce
Shanghai Suoqi Seawater-Resistant Network Cable is specially designed for Ethernet transmission in water-exposed environments such as ocean platforms, ships, and underwater equipment. Tin-plated copper conductors resist salt-fog corrosion, water-blocking structures combined with hydrolysis-resistant jackets allow long-term immersion; aluminum foil plus tin-plated copper braided double-layer shielding resists interference, and armored models are tensile-resistant and rodent-proof. Suitable for marine engineering, underwater cameras, marine ranches, supports non-standard customization, direct supply from the source manufacturer, welcome to call 13311756197 for detailed inquiries.
About Shanghai Suoqi
Shanghai Suoqi Electric Wire & Cable Co., Ltd. is a specialized cable enterprise focusing on the research and development, design, production, and sales of special flexible cables. The company's products cover a series including reel cables, flat cables, drag chain cables, encoder cables, polyurethane cables, seawater-resistant cables, seawater-resistant network cables, and high-altitude vehicle cables, which are widely used in ports machinery, mining, industrial automation, marine engineering, and other fields. For more product information or inquiries, please call 13311756197 (same number on WeChat).