Cold-resistant cable with compression-resistant protection structure

Abstract

The invention discloses a cold-resistant cable with a compression-resistant protection structure. The middle part of a cold-resistant cable body is provided with an internal cable for electric conduction, the middle part of the internal cable is provided with a tensile steel rope, the outer side of the tensile steel rope is provided with a conductive core, the outer sides of the tensile steel rope and the conductive core are wrapped by a fireproof wrapping layer, a the outer side of the fireproof wrapping layer is wrapped with an armor layer, the outer side of the armor layer is wrapped with a rubber insulating layer, the outer side of the cold-resistant cable body is provided with a protective sleeve, and the middle part of the protective sleeve is provided with a through sleeve hole for the internal cable to pass through. According to the cold-resistant cable with the compression-resistant protection structure, when the cable is installed and laid, the middle of the cable protective sleeve is filled with inert gas, the protective sleeve is expanded outwards to abut against the inner wall of the laying pipe, the cable is limited, the cable is prevented from being dislocated in the laying process, and meanwhile the cable is prevented from being damaged by the inert gas through the protection sleeve and the filled inert gas, so the cold-proof effect of the cable can be improved.

Description

technical field [0001] The invention relates to the technical field of cold-resistant cables, in particular to a cold-resistant cable with a pressure-resistant protection structure. Background technique [0002] The cable is an important part of the power system. It plays the role of transporting the power and transporting the power of the power plant over a long distance. It not only facilitates people's daily life, but also provides a strong guarantee for the development of the industry. Laying in some low-temperature environments will affect the transportation of electricity. Therefore, thermal insulation measures have been installed on the outside of the cable. For example, a long-life cold-resistant cable with a long life and cold resistance, including a central skeleton, 3 tensile ropes and 3 cable cores, the frame extends along the length of the cable, and the outside of the frame has 3 first grooves and 3 second grooves, and the first grooves are used to connect with...

AI Technical Summary

Problems solved by technology

[0006] The object of the present invention is to provide a cold-resistant cable with a pressure-resistant protection structure, so as to solve the problem that the existing cold-resistant cables on the market proposed by the above-mentioned background technology are prone to damage if they are squeezed by external objects when installed outdoors. Cause damage to the cable. If the cable is installed in the pipeline, it is also prone to dislocation and movement of the cable, which is not conducive to the stable laying of the cable. At the same time, the existing cold-resistant cable only changes the external material of the cable to improve the quality of the cable. Compared with the rubber cables used in the market, this structure has a limited effect on cold resistance.

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