Published: 2026-08-11
Shanghai Suoqi Cable Co., Ltd. is deeply engaged in the field of special flexible cables. The following provides a professional interpretation of seawater-resistant cables from three dimensions: material structure, performance advantages, and application scenarios.
Product original reference: Special cable with seawater-resistant, corrosion-resistant weak acid and alkali sheath
1. Materials and Structural Parameters
Characteristics of Sea-resistant Cables: They are used in important situations such as between distant islands and across-sea facilities. The laying distance of submarine power cables is much shorter compared to communication cables, mainly used between mainland and islands, across rivers or bays, connecting from the mainland to drilling platforms, or for interconnections between drilling platforms. In general, using submarine cables to transmit power is undoubtedly more expensive than overhead cables of the same length, but it is often more economical than using small, isolated power plants for regional power generation, and its benefits are greater in offshore areas. This type of cable is widely used in places with many islands and rivers.
Suoqi Cable (Shanghai) Co., Ltd. specializes in designing and customizing electrical wires and cables for mechanical equipment used for extension/retraction and towing in deep water. Various specifications of underwater robot cables can be customized according to customer requirements, such as for signal transmission, power supply, and equipment control systems.
When ordering, please specify the usage environment: such as tensile load, whether it is used for mobile or fixed installation, underwater environment (freshwater or seawater) depth, etc. Underwater cables can be divided into: ① video cable; ② signal cable; ③ control cable; ④ power cable; ⑤ composite cable. Applications of underwater cables: Underwater ROV unmanned remotely operated vehicles - underwater filming, underwater salvage, underwater construction, etc. Equipped with underwater robotic arms, hydraulic cutters, and other working tools. The underwater environment is harsh and dangerous, and human diving depth is limited. Underwater robots have become an important tool for ocean development, and in such environments, ordinary cables are no longer suitable for operation, hence the emergence of underwater robot cables (special cables).
Sohu Cable (Shanghai) Co., Ltd. specializes in designing and customizing wires and cables for mechanical equipment used for extension/retraction or towing in deep water. Various specifications of underwater robot cables can be customized according to customer requirements, such as signal transmission, power supply, and equipment control systems.
Underwater operation robot cables Seawater protection cables Usage characteristics Underwater operation robot cables Seawater protection cables Usage characteristics Submarine cables are divided into submarine communication cables and submarine power cables. Submarine communication cables are mainly used for communication services, are expensive, but have a high degree of confidentiality. Submarine power cables are mainly used for underwater transmission of high-power electrical energy, serving the same function as underground power cables, but differ in application scenarios and laying methods. Because submarine cable engineering is recognized worldwide as a complex and difficult large-scale project, requiring complex technologies from environmental detection, marine physical surveys, to cable design, manufacturing, and installation, there are only a few manufacturers of submarine cables, mainly Norway, Denmark, Japan, Canada, the United States, the United Kingdom, France, Italy, and others. These countries also provide laying technology in addition to manufacturing.
Underwater Cable Structure: Conductor Core: Multiple strands of finely twisted fine-grade oxygen-free copper wire / Corrosion-resistant tinned copper wire Conductor Structure: Anti-twist layered structure; Grouped gap filling; Twisted pair structure followed by layered bundling Insulation: Waterproof mixed material PVC / Corrosion-resistant Teflon plastic Color: Black with white numbering or colored core identification Tensile Structure: Polyester yarn fibers / High-strength tensile Kevlar bulletproof wire / Fine-stranded steel wire Wrapping Material: To make the cable more round and firm, raw tape (PTFE) or high-quality non-woven fabric (cost-effective) can be added Shielding: Aluminum foil shielding / Copper mesh braiding / Tinned copper mesh braiding Shield Inner Sheath: Modified low-viscosity strong extruded inner sheath customizable (optional based on environmental needs) Outer Sheath: Marine-grade material (waterproof, acid and alkali resistant, radiation-resistant, corrosion-resistant, antimicrobial)
2. Performance Technical Indicators
Rated voltage 0.6/1 kV; longitudinal watertight performance can reach a water depth of 300 m; applicable temperature range -20℃ to 80℃; salt spray resistance test not less than 1000 h, excellent hydrolysis resistance, can be used stably in marine environments for a long time.
3. Application Scenarios
Seawater protection cables are widely used in industrial automation, lifting and transportation, ports and docks, and other fields.
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).