Photoelectric hybrid cable with high tensile strength and capable of monitoring water seepage

Abstract

The invention discloses a photoelectric hybrid cable with high tensile strength and capable of monitoring water seepage. The photoelectric hybrid cable comprises an outer sheath, a water-absorbing resin layer, a wrapping layer and a cable core which are arranged from outside to inside, wherein a central reinforcer is arranged at the central position of the cable core, the central reinforcer is made of a thermoplastic resin and glass fiber mixed material, and the cable core further comprises a filling rope and a plurality of optical fiber cables which are arranged around the central reinforcer;the wrapping layer is formed by wrapping a resin glass fiber mixed tape on the cable core; the wrapping layer is wrapped by the water-absorbing resin layer, and the water-absorbing resin layer is internally provided with a sensing optical fiber. The outer sheath wraps the water-absorbing resin layer, and the interior of the outer sheath is provided with a plurality of copper wires. The photoelectric hybrid cable not only has good tensile resistance and lateral pressure resistance, but also can monitor water seepage and send out a water seepage alarm signal, and can realize dual transmission of an optical signal and an electric signal.

Description

technical field [0001] The invention belongs to the technical field of communication, and in particular relates to a photoelectric hybrid cable with high tensile strength and capable of monitoring water seepage. Background technique [0002] In the prior art, when laying an optical cable, it is necessary to perform operations such as stretching on the optical cable, thus requiring the optical cable to have better tensile performance. In the current optical cable products, there are central strength members (metal strength members and non-metal strength members), glass fiber yarns, aramid yarns, etc. that can provide tensile force; among them, the central strength member can provide the main source of tensile force. When a single central strength member cannot meet the tensile force, a combination of multi-layer strength members is required to achieve the required tensile force; however, this method of setting multi-layer strength members not only increases the cost, but also...

AI Technical Summary

Problems solved by technology

When a single central strength member cannot meet the tensile force, a combination of multi-layer strength members is required to achieve the required tensile force; however, this method of setting multi-layer strength members not only increases the cost, but also leads to the increase in the size and weight of the cable. increase, which increases the risk of long-term stretching and damage to aerial optical cables

[0003] In addition, for the laid optical cable, if there is a water seepage accident, if the staff cannot monitor it, it will easily affect the optical fiber transmission performance, resulting in failure to work normally

[0004] In addition, the existing optical cables can only transmit optical signals, but not electrical signals, and cannot meet the requirements of use.

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