High-insulativity aerial cable with double insulating layers

Abstract

The invention discloses a high-insulativity aerial cable with double insulating layers in the technical field of cables. Including a central tensile member, reinforcing extending edges are arranged onthe outer wall of the center tensile piece in an annular array mode. A filling layer is arranged among the inner wall of the inner sheath, the central tensile member and the reinforcing extension edge. The outer wall of the inner sheath is provided with a waterproof layer. Tensile reinforcing strips are arranged on the outer wall of the waterproof layer in an annular array mode. Bird-proof protrusions are evenly arranged on the outer wall of a bird pecking prevention outer sheath. According to the invention, the central tensile piece and the reinforced extension edges are adopted to ensure the tensile property of the interior; the tensile reinforcing strips have the advantages of being high in tensile strength, good in rigidity and the like, the external tensile performance is guaranteed,the tensile performance and the torsion resistance of the cable are greatly improved, meanwhile, the cable is not prone to breaking and cracking due to the fact that the filling layer and the elasticlayer are arranged, and the service life of the cable is prolonged.

Description

technical field [0001] The invention relates to the technical field of cables, in particular to a high-insulation overhead cable with double insulation layers. Background technique [0002] Overhead cable, the full name of overhead insulated cable, is an overhead conductor equipped with an insulating layer and a protective sheath. It is a special cable manufactured by a production process similar to cross-linked cables. It is a new power transmission method between overhead conductors and underground cables. . However, the current use of overhead cables has certain defects, such as poor tensile performance, which does not meet the needs of overhead laying, and is prone to cracking after long-term use. At the same time, it is easy to be noticed by birds. Many birds like to stand on cables and will peck them. If the cable is bitten, it is easy to cause damage to the cable. Therefore, we propose a high-insulation overhead cable with double insulation layers. Contents of the ...

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Problems solved by technology

However, the current use of overhead cables has certain defects, such as poor tensile performance, which does not meet the needs of overhead laying, and is prone to cracking after long-term use. At the same time, it is easy to be noticed by birds. Many birds like to stand on cables and will peck them. Biting the cable, it is easy to cause damage to the cable, for this reason, we propose a high-insulation overhead cable with double insulation

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