Underwater aluminum-plastic longitudinally-wrapped tinned copper flexible cable

The multi-layered protective structure of the aluminum-plastic longitudinally wrapped tin-plated copper flexible cable solves the problem of insufficient waterproofing of underwater cables, enabling stable power transmission and equipment power supply in underwater environments and extending the service life of the cable.

CN224304390UActive Publication Date: 2026-05-29JIANGSU JIANGYANG CABLE
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Patent Information

Application Number
CN202521096593.6
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-05-30
Publication Date
2026-05-29
Estimated Expiration
2035-05-30

AI Technical Summary

Technical Problem

Existing cables are susceptible to water intrusion in underwater environments, leading to water tree formation, which increases dielectric loss, reduces insulation resistance and breakdown voltage, affects cable life, and results in insufficient waterproof performance.

Method used

The structure of the aluminum-plastic longitudinally wrapped tinned copper flexible cable includes a tinned copper conductor, an XLPE insulation layer, a polyurethane waterproof adhesive filler, a tinned copper wire armor layer, and a low-smoke halogen-free outer sheath, combined with aluminum-plastic composite tape and water-blocking tape to form a multi-layer protective structure.

Benefits of technology

It provides stable power transmission in underwater environments, improves the cable's corrosion resistance and oxidation resistance, extends its lifespan, and has good flexibility and bending resistance to adapt to complex wiring environments.

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Abstract

The utility model relates to an underwater aluminum-plastic longitudinally-wrapped tinned copper flexible cable. The cable comprises a plurality of insulating wire cores, each insulating wire core is composed of a tinned soft copper conductor and an insulating layer arranged outside the tinned soft copper conductor, a water-blocking tape is lapped outside the plurality of insulating wire cores to form a cable core, a filler is arranged between the plurality of insulating wire cores and the water-blocking tape, an aluminum-plastic composite tape is longitudinally wrapped outside the cable core, and the aluminum-plastic composite tape is wrapped outside the tinned soft copper conductor. An armor layer is arranged outside the aluminum-plastic composite tape, and an outer sheath is extruded outside the armor layer. The underwater power cable has good flexibility and bending and winding resistance, can adapt to complex and changeable underwater wiring environments, can stably transmit electric power in the underwater environment, provides reliable power supply power connection for underwater equipment, is particularly important in the fields of ocean engineering, underwater detection, submersible operation and the like, and ensures normal operation of the underwater equipment.
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