Low-voltage fireproof cable

A fire-proof cable, low-voltage technology, applied in the direction of insulated cables, cables, circuits, etc., can solve the problems of inconvenient cable cutting, cable cutting, etc.

Active Publication Date: 2021-05-07
金太阳电缆有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In the process of use, it is not convenient for the user to cut the cable in time in the high area, and in the process of use, the cutter is easy to cut the cable

Method used

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  • Low-voltage fireproof cable

Examples

Experimental program
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Effect test

Embodiment

[0030] see Figure 1-8 , a low-voltage fire-resistant cable, including a cable core 1, the outside of the cable core 1 is covered with an insulating layer 2, and the insulating layer 2 is asbestos; the heat insulation effect of asbestos is better, and the reduction in occurrence is light. For the damage to the cable after the fire, the outer covering of the insulating layer 2 is provided with a protective layer 3, and the protective layer 3 is interwoven with copper wire and polyethylene; the effect of anti-bending damage through copper wire and polyethylene is relatively high. Well, after a fire breaks out, the melting point of the copper wire is higher, thereby further reducing the fire intensity, the outer part of the protective layer 3 is covered with a protective tube 4, and one end of the protective tube 4 is fixedly connected with two connecting blocks 5 One side of the protective tube 4 is provided with a limiting tube 6, the limiting tube 6 is fixedly connected to the...

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PUM

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Abstract

The invention relates to the technical field of cables, and particularly relates to a low-voltage fireproof cable which comprises a cable core, an insulating layer, a protective layer, a protective tube, two connecting blocks and a limiting tube. The limiting tube is fixedly connected with the opposite ends of the connecting blocks, a cutting knife is arranged between the limiting tube and the protective tube and is in a circular ring shape, and positioning holes are formed in the upper portion and the lower portion of the cutting knife. The free end of the limiting tube is fixedly connected with a guide pipe, a receding groove is formed in the end, close to the limiting pipe, of the guide pipe, two springs are arranged in the receding groove, one end of each spring is fixedly connected with the inner wall of the receding groove, two circular plates are arranged in the receding groove, and each circular plate is fixedly connected with the opposite end of the corresponding spring. The other end of each circular plate is fixedly connected with a positioning shaft, and one end of each positioning shaft penetrates through the corresponding limiting tube and is inserted into the corresponding positioning hole. A user can conveniently cut off a cable in time, and the situation that the cable is cut by a cutter is reduced.

Description

technical field [0001] The invention relates to the technical field of cables, in particular to a low-voltage fireproof cable. Background technique [0002] As a device for transmitting power and signals, cables need to be installed in relatively remote areas during use. During the process of transmitting power, cables may fail and cause fires. [0003] After searching, the patent publication number is CN109036685A, which discloses a low-voltage fireproof cable, including a sheath. There is a filling layer, the copper core includes thick copper wire and copper wire, the copper wire is provided with multiple strands, wound and attached to the outer wall of the thick copper wire, the lower end of the sheath is equipped with a tangent structure, and the tangent structure includes cutter A and cutter B , a baffle plate is installed above the two ends of the outer sides of the cutter A and the cutter B. The invention solves the problem of high temperature caused by fire during ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01B7/38H01B7/18
CPCH01B7/38H01B7/18
Inventor 赵起佳
Owner 金太阳电缆有限公司
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