Flexible hoisting cable and preparation method thereof

Abstract

The invention discloses a flexible hoisting cable and a preparation method thereof. The cable comprises a cable core, an inner sheath, a metal braid layer, an outer sheath and an outer sheath semiconductive shielding layer which are sequentially arranged from inside to outside. The cable core comprises a central reinforcing filling strip and insulating wire cores uniformly surrounding the outer peripheral surface of the central reinforcing filling strip. Gaps between the two adjacent insulating wire cores and the inner sheath are filled with side gap reinforcing filling strips; the metal braidlayer comprises metal braid prevention and control wire cores which are uniformly arranged outside the inner sheath. And metal braided reinforcing wires are uniformly distributed between the adjacentmetal braided prevention and control wire cores. The tensile property of vertical installation and laying of the cable is improved while the flexibility of the cable structure is guaranteed; meanwhile, the continuity of a cable grounding protection wire core is monitored, the integrity of a cable sheath is detected, the safety and stability of the cable are improved, and the continuity of cable power supply is guaranteed.

Description

technical field [0001] The invention relates to the technical field of cables, in particular to a flexible hoisting cable and a preparation method thereof. Background technique [0002] At present, with the continuous development of urbanization, there are more and more high-rise buildings, many of which have exceeded the height of 200 meters. potential safety hazard, it is necessary to design a cable that can monitor its use. For high-rise buildings, the use of traditional power cables can no longer meet the installation and laying environment. Ordinary power cables are generally only suitable for laying on the ground, bridges and cable trenches and other fixed occasions with supporting parts. High-rise buildings require cables to be laid vertically and have some turns. The cables need to have a certain degree of bending, so the cables for hanging in high-rise buildings put forward higher requirements for their tensile strength while ensuring flexibility. Contents of the...

AI Technical Summary

Problems solved by technology

[0002] At present, with the continuous development of urbanization, there are more and more high-rise buildings, many of which have exceeded the height of 200 meters. potential safety hazards, it is necessary to design a cable that can monitor its use

For high-rise buildings, the use of traditional power cables can no longer meet the installation and laying environment. Ordinary power cables are generally only suitable for laying on the ground, bridges and cable trenches and other fixed occasions with supporting parts. High-rise buildings require cables to be laid vertically and have some turns. Cables need to have a certain degree of bending, so high-rise buildings use hanging cables to ensure flexibility and put forward higher requirements for their tensile strength.

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