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New energy flame-retardant cable

A flame-retardant cable and new energy technology, applied in the direction of insulated cables, cables, circuits, etc., can solve the problems of complex materials and structures, and improve the difficulty of cable processing, and achieve the effects of simple structure, improved production efficiency, and good cable core protection

Active Publication Date: 2020-09-22
ANHUI DUJIANG CABLE GROUP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Traditional flame-retardant cables are generally insulated by heat-insulating rubber and braided layers to prevent heat from adversely affecting the cable core. Performance, but the related materials and structures are relatively complex, which greatly increases the difficulty of cable processing

Method used

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  • New energy flame-retardant cable
  • New energy flame-retardant cable
  • New energy flame-retardant cable

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] Such as figure 1 A new energy flame-retardant cable is shown, including a cable core 1 located at the center of the cable and a sheath layer 4 covering the surface of the cable; a heat shrinkable layer 2 is provided outside the cable core 1, and the heat shrinkable The outer side of the shrinkable layer 2 is provided with a flame retardant layer 3, and in the initial state, the outer side of the heat shrinkable layer 2 is completely attached to the inner side of the flame retardant layer 3;

[0032] The heat-shrinkable layer 2 is made of heat-shrinkable material. Heat-shrinkable material, also known as polymer memory material, is a kind of intelligent material combined with polymer material and radiation processing technology. The shape memory effect of polymer materials is the basic principle of manufacturing heat shrinkable materials. The polyolefin substrate undergoes a cross-linking reaction after irradiation, endowing the material with insoluble and infusible cha...

Embodiment 2

[0037] The difference between this embodiment and embodiment 1 is:

[0038]In this embodiment, the material of the flame-retardant layer 3 is an environment-friendly flame-retardant wood material. Flame-retardant wood materials have a flame-retardant function and can meet the design needs, and the flame-retardant materials are environmentally friendly materials, which meet people's increasing awareness of environmental protection, safety, and health.

[0039] In this example, if image 3 and Figure 4 As shown, the inner surface of the flame-retardant layer 3 is provided with circular embedding grooves 6 at equal intervals along its length direction, and each embedding groove 6 is fixedly embedded with a ring-shaped heat-expandable tire 7, In the initial state, the inner surface of the thermally expandable tire 7 is flush with the inner surface of the flame-retardant layer 3 . Based on the heat shrinkage of the heat shrinkable layer 2 and the formation of a gap between the ...

Embodiment 3

[0043] The difference between this embodiment and embodiment 2 is:

[0044] In this embodiment, the flame retardant layer 3 is made of environmentally friendly flame retardant plastic. Flame-retardant plastics have a flame-retardant function, which can meet the design needs, and the flame-retardant materials are environmentally friendly materials, which meet people's increasing awareness of environmental protection, safety, and health.

[0045] In this example, if Figure 7 As shown, the inside of the heat-shrinkable layer 2 is provided with a uniform heat-conducting layer 8 located outside the cable core 1. The uniform heat-conducting layer 8 is a wire wrapping layer made of heat-conducting metal. The cable core 1 and the uniform heat-conducting layer A gap is left between the layers 8 . The uniform heat-conducting layer can make the heat emitted by the cable core evenly transfer to the heat-shrinkable layer, which is conducive to the uniform shrinkage and deformation of th...

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Abstract

The invention discloses a new-energy flame-retardant cable and belongs to the technical field of the cable. The new-energy flame-retardant cable comprises a cable core arranged at the center of the cable and a sheath layer arranged at a surface of the cable in a coating manner, wherein the outer side of the cable core is provided with a thermal shrinkage layer, the outer side of the thermal shrinkage layer is provided with a flame-retardant layer, the thermal shrinkage layer is made of a thermal shrinkage material, and in an initial state, an outer side surface of the thermal shrinkage layer is completely attached to an inner side surface of the flame-retardant layer. The new-energy flame-retardant cable is advantaged in that during application, the cable core generates heat, the thermal shrinkage layer shrinks after being heated and wraps the cable core more tightly, the cable core can be better protected, meanwhile, a gap in a vacuum state is formed between the thermal shrinkage layer and the flame-retardant layer, the flame-retardant performance of the cable can be promoted, and the cable provided by the invention has good flame retardant property, and is simple in structure andeasy to process.

Description

technical field [0001] The invention relates to the technical field of cables, in particular to a new energy flame-retardant cable. Background technique [0002] With the increasingly serious problem of air governance, vigorously developing the new energy industry has become the general trend. In this context, new energy cables such as photovoltaic cables, wind power cables, nuclear power plant cables, and offshore oil platform cables will become the development goals of wire and cable. [0003] With the acceleration of my country's economic construction, medium-voltage power distribution systems in important places such as high-rise buildings, subways, tunnels, power plants and nuclear power plants have put forward higher requirements for the safety of power cables under fire conditions. It is imperative to use fire-resistant and flame-retardant cables for power supply. Fire-resistant and flame-retardant power cables must not only be flame-retardant and fire-resistant unde...

Claims

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Application Information

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IPC IPC(8): H01B7/29H01B7/295H01B7/42
CPCH01B7/292H01B7/295H01B7/428
Inventor 巫春生徐志敏胡宏生万长东张家文毕亮亮
Owner ANHUI DUJIANG CABLE GROUP
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