CN-224203874-U - Cable with improved cable tension

CN224203874UCN 224203874 UCN224203874 UCN 224203874UCN-224203874-U

Abstract

The utility model provides a cable, and belongs to the technical field of fireproof cables. The cable includes a cable core, a flame retardant layer, and a protective layer. The cable core comprises a plurality of mutually twisted insulated wire cores. The fireproof layer comprises a woven mesh belt and mixed minerals, the woven mesh belt is wrapped on the outer peripheral side of the cable core, a filling space is formed by surrounding the woven mesh belt and the cable core, the woven mesh belt is provided with a plurality of mesh belt holes, the mesh belt holes are communicated with the filling space, the mixed minerals are configured to be capable of obstructing flames, one part of the mixed minerals are arranged in the filling space and the mesh belt holes, and the other part of the mixed minerals encircle the outer peripheral side of the woven mesh belt. The protective layer surrounds the outer peripheral side of the fireproof layer, and the protective layer is configured to be capable of tightening and protecting the fireproof layer. The cable disclosed by the utility model can improve the fireproof performance of the cable.

Inventors

FENG BAOLEI
LV WEITANG
ZHAO CHUNHE
LIU JIAYI
YIN RUIXIN

Assignees

湖南神通光电科技有限责任公司

Dates

Publication Date: 20260505
Application Date: 20250604

Claims (5)

1. A cable, comprising: the cable core comprises a plurality of mutually twisted insulated wire cores; The fireproof layer comprises a woven mesh belt and mixed minerals, wherein the woven mesh belt is wrapped on the outer peripheral side of the cable core, a filling space is formed by surrounding the woven mesh belt and the cable core, the woven mesh belt is provided with a plurality of mesh belt holes, the mesh belt holes are communicated with the filling space, the mixed minerals are configured to block flames, one part of the mixed minerals are arranged in the filling space and the mesh belt holes, and the other part of the mixed minerals are surrounded on the outer peripheral side of the woven mesh belt; And a protective layer surrounding an outer circumferential side of the fireproof layer, the protective layer being configured to be capable of binding and protecting the fireproof layer.
2. The cable of claim 1, wherein the mixed minerals comprise magnesium hydroxide and sodium silicate.
3. The cable of claim 1, wherein the insulated wire core comprises a conductor, a refractory layer and an insulating layer, the refractory layer surrounds the outer peripheral side of the conductor, the insulating layer surrounds the outer peripheral side of the refractory layer, the refractory layer is a mineral gold mica tape, and the insulating layer is crosslinked polyethylene.
4. The cable of claim 1, wherein the protective layer comprises a fiberglass tape wrapped around the outer peripheral side of the flame retardant layer and an outer protective layer surrounding the outer peripheral side of the fiberglass tape, the outer protective layer being a low smoke, halogen free, flame retardant polyolefin.
5. The cable of claim 1, wherein the protective layer is configured to be orange in color.

Description

Cable with improved cable tension Technical Field The utility model relates to the technical field of fireproof cables, in particular to a cable. Background The demand of modern society for electric power safety is increasingly promoted, the electric power safety is closely related to people's life, and especially under the strict requirements of high-rise buildings, public facilities and industrial fields on fire prevention and control, fireproof safety products are the first requirement on cable safety. The insulation and sheathing materials of ordinary cables are easily burned at high temperature or open flame and release toxic fumes and corrosive gases. In a fire, the cable may become a fire spreading channel, and even cause a short circuit, exacerbating the disaster. Especially, dense places such as high-rise buildings, subways, tunnels and the like are in mass emergence, so that the environment is dense in personnel and difficult to escape, and the fire resistance of the cable is more highly required. Disclosure of utility model The utility model provides a cable, which aims to improve the fireproof performance of the cable. In order to achieve the above object, the present utility model provides a cable comprising: the cable core comprises a plurality of mutually twisted insulated wire cores; The fireproof layer comprises a woven mesh belt and mixed minerals, wherein the woven mesh belt is wrapped on the outer peripheral side of the cable core, a filling space is formed by surrounding the woven mesh belt and the cable core, the woven mesh belt is provided with a plurality of mesh belt holes, the mesh belt holes are communicated with the filling space, the mixed minerals are configured to block flames, one part of the mixed minerals are arranged in the filling space and the mesh belt holes, and the other part of the mixed minerals are surrounded on the outer peripheral side of the woven mesh belt; And a protective layer surrounding an outer circumferential side of the fireproof layer, the protective layer being configured to be capable of binding and protecting the fireproof layer. In one embodiment, the mixed mineral comprises magnesium hydroxide and sodium silicate. In an embodiment, the insulation core includes a conductor, a refractory layer and an insulation layer, the refractory layer surrounds the outer peripheral side of the conductor, the insulation layer surrounds the outer peripheral side of the refractory layer, the refractory layer is a mineral substance mica tape, and the insulation layer is crosslinked polyethylene. In an embodiment, the protective layer comprises a glass fiber wrapping tape and an outer protective layer, the glass fiber wrapping tape is wrapped on the outer peripheral side of the fireproof layer, the outer protective layer is wrapped on the outer peripheral side of the glass fiber wrapping tape, and the outer protective layer is low-smoke halogen-free flame retardant polyolefin. In one embodiment, the color of the protective layer is configured to be orange. The scheme of the utility model has the following beneficial effects: In the embodiment of the application, the braided mesh belt is wrapped on the outer peripheral side of the cable core, so that a plurality of mutually twisted insulated cable cores can be fastened. Meanwhile, a filling space is formed by surrounding the woven mesh belt and the cable core, the woven mesh belt is provided with a plurality of mesh belt holes, the mesh belt holes are communicated with the filling space, when the mixed mineral substances capable of preventing flames are extruded and formed on the outer periphery side of the woven mesh belt, a part of the mixed mineral substances can enter the filling space through the mesh belt holes, so that the possibility that oxygen exists in the filling space is reduced, and the other part of the mixed mineral substances can encircle the outer periphery side of the woven mesh belt. In addition, in the process of extrusion molding of the mixed mineral, the woven mesh belt can be used as a framework of extrusion of the mixed mineral to support the mixed mineral, so that the mixed mineral can be firmly molded and attached to the outer peripheral side of the cable core, can be compactly extruded into the filling space, and then has lower oxygen content in the filling space and even no oxygen, so that the duration of flame of the cable in the combustion process is reduced, and the fireproof performance of the cable is improved. In addition, the woven mesh belt is used as a supporting framework of the mixed mineral matters, so that concentricity of the mixed mineral matters and the cable core is improved, the possibility of the cable that the fireproof performance of the cable is reduced due to the fact that the thickness of the fireproof layer is eccentric in the combustion process is reduced, and the fireproof performance of the cable is improved. Other advantageous effects of the present utility mod