Tensile Design of Marine Cable Construction

Key Technical Data

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In coastal ports, aquaculture, shallow-sea operations, and other water-involved environments, ordinary cables are corroded by seawater ions, causing rapid aging of the insulation layer and oxidation and rust of the conductor, posing significant safety risks. To address this issue, Shanghai Suoqi has optimized its seawater-resistant cables in both materials and processes: the core wires are twisted and shielded with tinned copper braid, and the sheath is made of specially formulated seawater-resistant PUR composite material, which resists salt ion corrosion and is suitable for high-humidity and saline submerged environments near the sea. In practical applications, the products are recognized by customers in underwater, mechanical, and robotics fields for their tensile strength, corrosion resistance, and shielding performance. Customization according to drawings and direct shipment of stock are supported. For details, call 13311756197.

Product Features

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 Cable Structure: Conductor Core: multiple strands of fine twisted ultra-fine oxygen-free copper wire / anti-corrosion tinned copper wire Conductor Structure: anti-twist layered structure; group-type gap filling; twisted pair structure and then layered bundling Insulation: PVC made from waterproof composite materials / corrosion-resistant Teflon plastic Color: black with white numbering or color-coded cores Tensile Structure: polyester yarn / high-strength tensile Kevlar ballistic wire / finely twisted steel wire Wrapping Material: to make the cable rounder and firmer, can add raw tape (PTFE) or high-quality non-woven fabric (more cost-effective) Shielding: aluminum foil shield / copper mesh braid / tinned copper mesh braid Inner Sheath: modified low-viscosity high-strength extrusion inner sheath, customizable (optional depending on environmental requirements) Outer Sheath: seawater-resistant special material (waterproof, acid and alkali resistant, radiation-resistant, corrosion-resistant, antimicrobial) ---

Application scenarios

Suoyou Cable (Shanghai) Co., Ltd. specializes in designing and customizing wires and cables for mechanical equipment used in deep water for telescoping and pulling. We can customize various specifications of underwater robot cables 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 Use 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 high levels of confidentiality. Submarine power cables are mainly used for underwater transmission of high-power electrical energy, serving the same function as underground power cables, except for different application scenarios and laying methods. Because submarine cable engineering is recognized worldwide as a complex and challenging large-scale project, from environmental detection and marine physical surveys to cable design, manufacturing, and installation, complex technologies are required. Therefore, there are only a few manufacturers of submarine cables, mainly Norway, Denmark, Japan, Canada, the United States, the United Kingdom, France, Italy, and others, which provide laying technology in addition to manufacturing.

Technical Parameters

Parameter item

Technical indicators

Underwater cable structure

Conductor Core: Multiple strands finely twisted into bundles of fine oxygen-free copper wire / corrosion-resistant tinned copper wire Conductor Structure: Anti-twist layered structure; group gap filling; twisted pair structure then layered bundling Insulation: PVC made from waterproof mixed materials / corrosion-resistant Teflon plastic Color: Black with white numeric marking or colored core identification Tensile Structure: Polyester fiber / high-strength tensile Kevlar bulletproof wire / finely twisted steel wire Wrapping Material: To make the wire more round and firm, raw tape (PTFE) or high-quality non-woven fabric (cost-effective) can be added Shielding: Aluminum foil shielding / copper braid / tinned copper braid shielding Inner Sheath: Modified low-viscosity high-strength extruded inner sheath, customizable (optional based on environmental requirements) Outer Sheath: Special seawater-resistant material (waterproof, acid-alkali resistant, radiation resistant, corrosion resistant, antimicrobial) ---

Customized services

Direct sales from Shanghai Suoqi cable factory source, supporting on-demand customization of multiple core counts and specifications. Ample stock available, nationwide shipping. Consultation hotline: 13311756197

Frequently Asked Questions

Do seawater-resistant cables need to undergo salt spray testing?

Required. High-quality products must withstand salt spray tests for ≥1000 hours to verify the jacket's resistance to marine corrosion and microbial erosion.

What are the key points for selecting cables for offshore platforms?

Clarify water depth, whether it moves, temperature range, and mechanical stress, and prioritize salt spray-resistant PUR sheaths with tensile reinforcement structures.