Water-blocking low-voltage cable

By setting water-blocking components and multi-layered sheathing structures between the conductor filaments of the water-blocking low-voltage cable, the problem of cable aging caused by moisture penetration is solved, achieving high reliability and long service life in humid environments.

CN224417527UActive Publication Date: 2026-06-26ZHONGTIAN TECH SUBMARINE CABLE CO LTD +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ZHONGTIAN TECH SUBMARINE CABLE CO LTD
Filing Date
2026-05-08
Publication Date
2026-06-26

AI Technical Summary

Technical Problem

In existing water-blocking low-voltage cables, moisture can easily penetrate longitudinally along the twisted gaps of the conductor filaments during use, leading to accelerated aging of the cable.

Method used

Water-blocking components are placed between the conductor filaments, and a water-blocking tape layer is wrapped around the outer cladding to form a multi-layer composite structure, including an insulation layer, a composite armor layer, and an outer sheath. The water-blocking components and the multi-layer structure work together to block water penetration.

Benefits of technology

It effectively reduces the corrosion of conductor filaments by moisture and the growth of water tree in the cladding, extends cable life, and improves the reliability and stability of cables in humid environments.

✦ Generated by Eureka AI based on patent content.

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Abstract

The embodiment of the application provides a kind of water-blocking low-voltage cable, it is related to cable technical field, water-blocking low-voltage cable includes: core layer, core layer includes multiple mutually twisted conductor filaments;Cladding, cladding includes first water-blocking tape layer, first water-blocking tape layer is covered outside core layer;Water-blocking element, water-blocking element is located in the inside of first water-blocking tape layer, and water-blocking element is arranged in the gap between multiple conductor filaments.The water-blocking low-voltage cable provided in the embodiment of the application solves the problem that water easily penetrates longitudinally along the twisting gap of the conductor filaments in the related art, which causes the accelerated aging of the water-blocking low-voltage cable.
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