High conductivity aerial cable and method of manufacture

By designing axial grooves and trapezoidal bumps on the conductor surface and using an interlocking structure of spherical metal particles and adhesive, the problem of insufficient bonding strength of the conductive layer was solved, thereby improving the stability and conductivity of the conductive layer and promoting heat dissipation and uniform current distribution.

CN122177580APending Publication Date: 2026-06-09铭越电缆有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
铭越电缆有限公司
Filing Date
2026-01-27
Publication Date
2026-06-09

AI Technical Summary

Technical Problem

The existing overhead line conductors have insufficient bonding strength between the conductive layer and the adhesive, making them prone to falling off. Furthermore, the accumulation of metal powder can easily create voids, resulting in discontinuous conductive paths and an inability to maintain stable conductivity over a long period.

Method used

It adopts an axial groove structure and trapezoidal bump design. The conductive layer is composed of spherical metal particles and adhesive. The metal particles have through holes, and the adhesive penetrates into the holes to form mechanical interlocking, which enhances the bonding strength. The conductive layer is coated on the conductor surface and fills the axial groove to form a continuous conductive path.

Benefits of technology

It improves the bonding strength between the conductive layer and the conductor surface, reduces the risk of the conductive layer falling off, enhances the structural stability and conductivity of the conductive layer, reduces AC resistance, and promotes heat dissipation and uniform current distribution.

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Abstract

The application discloses a kind of high-conductivity cable overhead line manufacturing method, including S1, substrate preparation treatment;S2, single wire drawing forming;S3, axial groove structure processing;S4, conductor annealing treatment;S5, conductive layer coating treatment;S6, multi-wire stranding forming.A kind of high-conductivity cable overhead line includes, conductor, conductive layer, insulating layer, shielding layer and outer sheath;The outer surface of the conductor is provided with multiple axial grooves along its axial direction.The application is coated by conductive layer, multiple circular pores in the interior of metal particles enable binder to enter particle, form mechanical interlocking structure, enhance the binding force between metal particles and binder, which makes the conductive layer not easy to fall off from the surface of the conductor after solidification, even if subjected to slight mechanical friction or vibration, conductive layer can still keep intact, in addition, circular pore structure makes metal particles form more compact accumulation inside conductive layer, reduce the gap inside conductive layer, improve the overall structural stability of conductive layer.
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