A low-smoke flame-retardant cable for urban rail transit

Abstract

A low-smoke flame-retardant cable for urban rail transit is disclosed, including a cable shell, anti-slip strips are fixedly installed on the outer surface of the cable shell near the two ends, and the outer surface of the cable shell is longitudinally provided with a heat conduction groove, the outer surface of the cable shell is provided with a binding groove close to the middle position, The outer surface of the binding groove is sleeved by a buffer pad, a plurality of groups of clamping blocks are fixedly installed inside the cable shell, glass fiber filling cores are embedded in the innersurfaces of the clamping blocks, a cable core is arranged in an upper side position close to the glass fiber filling cores inside the cable shell, and an inner insulation sleeve sleeves the outer surface of the cable core. The low-smoke flame-retardant cable for urban rail transit is provided with the heat conduction groove, the binding groove and a shielding ring, which can play a heat conduction role on the cable, facilitate the binding of the cable, greatly improve the flame retardancy of the cable and bring better use prospects.

Description

technical field [0001] The invention relates to the field of cables, in particular to a low-smoke and flame-retardant cable for urban rail transit. Background technique [0002] With the acceleration of my country's urbanization process, the development of urban rail transit has entered the fast lane. Since urban rail transit mostly uses subways, and the subway space is relatively closed, because it involves major personal safety, the cables for urban rail transit are mainly used for power transmission and signal control of urban rail transit and should be "environmentally friendly" cables; existing There are certain disadvantages in the use of cables for rail transit. They cannot conduct heat to the cables, cannot facilitate the bundling of cables, cannot greatly improve the flame retardancy of the cables, and are troublesome to operate. To a certain extent, we propose a low-smoke flame-retardant cable for urban rail transit. Contents of the invention [0003] The main ...

AI Technical Summary

Problems solved by technology

Since urban rail transit mostly uses subways, and the subway space is relatively closed, because it involves major personal safety, the cables for urban rail transit are mainly used for power transmission and signal control of urban rail transit and should be "environmentally friendly" cables; existing There are certain disadvantages in the use of cables for rail transit. They cannot conduct heat to the cables, cannot facilitate the bundling of cables, cannot greatly improve the flame retardancy of the cables, and are troublesome to operate. brought a certain impact, for this reason, we propose a low-smoke flame-retardant cable for urban rail transit

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