A self-supporting outdoor aerial cable

Abstract

The invention discloses a self-supporting type outdoor aerial cable comprising a PE sheath and a steel plastic composite tape which is arranged at the internal wall of the PE sheath. Two tangent copper wires with insulation which are tangent with the internal wall of the steel plastic composite tape are arranged on the diameter of the steel plastic composite tape. Optical fibers are fully filled in a loose bushing, and water-resistant cable paste is filled in the gap of the internal part of the steel plastic composite tape. Steel ropes with sheaths are connected at the external wall of the PE sheath via a hanging tape, and the cross section of the hanging tape is elliptical. The steel plastic composite tape and the steel wires with the sheaths act as the supporting structure of the PE sheath, and the internal part of the PE sheath is filled by the loose bushing and the two copper wires with the insulating layers so that the optical fibers arranged in the loose bushing are ensured not to be damaged by wild animals or affected by complex changes in weather under multiple protection of the PE sheath and the steel plastic composite tape, stable working performance of the optical cable in rural regional areas can be guaranteed, and finally an objective of reducing frequency of optical cable maintenance or replacement is realized.

Description

technical field [0001] The invention relates to the field of optical cable manufacturing, in particular to a self-supporting outdoor aerial cable. Background technique [0002] In daily life, optical fibers are used for long-distance information transmission because the loss of light in optical fibers is much lower than that of electricity in wires. Most optical fibers must be covered by several layers of protective structures before use. The coated cable is called an optical cable. The protective layer and insulating layer on the outer layer of the optical fiber can prevent the surrounding environment from harming the optical fiber, such as water, fire, electric shock, etc. . [0003] The photoelectric hybrid cable is the cable twisted together by the optical cable box cable, that is, an insulated conductor is added to the optical cable structure, and the optical fiber and the power transmission copper wire are integrated. Since optical transmission and electrical energy t...

AI Technical Summary

Problems solved by technology

In view of the prior art, the laying of optical cables in rural areas is easily affected by complex weather changes, resulting in damage to the sheath of the optical cable, and the metal support in the sheath is easily corroded by moisture, thereby shortening the service life of the optical cable. The invention first fixes a steel-plastic composite tape on the inner wall of the PE sheath, fixes two copper wires with insulating layers arranged radially along the steel-plastic composite tape in the steel-plastic composite tape, and then fills the inside with the fiber-optic loose On one side of the two copper wires of the casing, place the sheathed steel wire as a support on the other side of the two copper wires, and finally fill the gap inside the steel-plastic composite tape with water-blocking cable paste, so that the steel The inner wall of the plastic composite tape is fully supported, that is, the processing of the optical cable is completed. At the same time, the outer wall of the PE sheath is connected with a steel rope for supporting the overhead through a sling, and the steel rope is equipped with a sheath to improve its protection level and Service life, in which the cross-section of the sling is elliptical, that is, when the strong wind hits the cable, the sling can buffer the interaction force between the PE sheath and the steel rope through a certain amount of deformation to ensure that the swing range of the aerial cable is within its Within the safety range; and the present invention is in use, first the steel rope with sheath is fixed on the PE sheath by sling, then by the steel-plastic composite belt, the steel wire with sheath as the supporting structure of PE sheath, and The loose tube and two copper wires with insulation fill the inside of the PE sheath to ensure that under the multiple protection of the PE sheath and the steel-plastic composite tape, the optical fiber in the loose tube will not be damaged by wild animals and complicated The impact of weather changes, thereby ensuring the stable working performance of the optical cable in rural areas, prolonging the service life of the optical cable, and at the same time filling the gaps between multiple optical fibers in the central sleeve with fiber paste, which can protect the sleeve and While fixing the optical fiber, it can also play the role of mechanical buffer, and finally achieve the purpose of reducing the frequency of cable maintenance or replacement

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