CN219610086U

CN219610086U - Low-temperature cold-resistant halogen-free low-smoke fire-resistant wire

Info

Publication number: CN219610086U
Application number: CN202321219485.4U
Authority: CN
Inventors: 廖锦仁; 王志辉; 沈锦生; 周泽乔; 杨洪文; 刘文志; 郑焕铭
Original assignee: Guangzhou Nanyang Cable Group Co ltd
Current assignee: Guangzhou Nanyang Cable Group Co ltd
Priority date: 2023-05-19
Filing date: 2023-05-19
Publication date: 2023-08-29
Anticipated expiration: 2033-05-19

Abstract

The utility model provides a low-temperature cold-resistant halogen-free low-smoke refractory wire which comprises a copper conductor, a first insulating layer, a second insulating layer, a third insulating layer, a fourth insulating layer, a fifth insulating layer and a protective layer, wherein the copper conductor is arranged on the first insulating layer; the first insulating layer is located the outside of copper conductor, and the second insulating layer is located one side that the copper conductor was kept away from to the first insulating layer, and the third insulating layer is located one side that the first insulating layer was kept away from to the second insulating layer, and the fourth insulating layer is located one side that the second insulating layer was kept away from to the third insulating layer, and the fifth insulating layer is located one side that the third insulating layer was kept away from to the fourth insulating layer, and the protective layer is located one side that the fourth insulating layer was kept away from to the fifth insulating layer. The performance in the aspects of extension, oil resistance, cold resistance, cracking resistance and the like is improved, and the halogen-free low-smoke flame retardant wire has excellent physical and mechanical properties, halogen-free low-smoke flame retardant performance, oil resistance, acid and alkali resistance and excellent fireproof and fire resistance, and ensures that the whole low-temperature cold-resistant halogen-free low-smoke flame retardant wire has certain continuous working capacity when a fire disaster occurs so as to avoid more serious harm.

Description

Low-temperature cold-resistant halogen-free low-smoke fire-resistant wire

Technical Field

The utility model relates to the technical field of wires, in particular to a low-temperature cold-resistant halogen-free low-smoke fire-resistant wire.

Background

The low-temperature cold-resistant wire is a power supply product used in a low-temperature environment, the fire-resistant cable is mainly used as a power supply loop of an emergency power supply, and along with development of technology and demands of people on work and life, cables with higher flame retardant levels are required to be adopted in engineering construction fireproof standards, so that stability and safety analysis of the existing cables are performed at present, and the fire-resistant cable is the best choice. Because of the rapid rise in ambient temperature during a fire, fire resistant cables need to have some continuous operation capability during the occurrence of the fire to avoid more serious hazards. The utility model aims to manufacture a wire which can work in a low-temperature cold-resistant environment and can realize fire resistance.

Disclosure of Invention

In order to solve the problems, the utility model adopts the following technical scheme: a low temperature cold resistant halogen free low smoke refractory wire comprising: a copper conductor, a first insulating layer, a second insulating layer, a third insulating layer, a fourth insulating layer, a fifth insulating layer and a protective layer;

the first insulating layer is located the outside of copper conductor, the second insulating layer is located the first insulating layer is kept away from one side of copper conductor, the third insulating layer is located the second insulating layer is kept away from one side of first insulating layer, the fourth insulating layer is located the third insulating layer is kept away from one side of second insulating layer, the fifth insulating layer is located the fourth insulating layer is kept away from one side of third insulating layer, the protective layer is located the fifth insulating layer is kept away from one side of fourth insulating layer.

Further, the first insulating layer is a gold mica tape, and the first insulating layer is formed by wrapping.

Further, the second insulating layer is a crosslinked polyolefin insulating layer.

Further, the third insulating layer is a low-density polyethylene insulating layer.

Further, the fourth insulating layer is a crosslinked polyolefin insulating layer.

Further, the fifth insulating layer is a low-density polyethylene insulating layer.

Further, the protective layer is a fiber woven layer.

Further, the thicknesses of the first insulating layer, the second insulating layer, the third insulating layer, the fourth insulating layer and the fifth insulating layer are 0.5-3.6mm.

Further, the thickness of the protective layer is 1.5-6mm.

Further, the heat insulation layer is arranged between the fifth insulating layer and the protective layer.

The beneficial effects of the utility model are as follows: through setting up first insulating layer, second insulating layer, third insulating layer, fourth insulating layer, fifth insulating layer and protective layer on the copper conductor, can improve the performance in the aspect of extension, resistant oil, cold-resistant, crack prevention etc. well, and have excellent physical mechanical properties, no steamed low smoke fire resistance, oil resistance, acid and alkali resistance, good fire prevention fire resistance, can ensure well that whole cold-resistant steamed low smoke and fire-resistant electric wire of low temperature is when the conflagration takes place, can also have the ability of certain continuous operation in order to avoid taking place more serious harm.

Drawings

The utility model is further illustrated by the accompanying drawings, which are not to be construed as limiting the utility model in any way.

Fig. 1 is a schematic diagram of an internal structure of a low-temperature cold-resistant halogen-free low-smoke refractory wire according to an embodiment;

fig. 2 is a schematic diagram of an internal structure of a low-temperature cold-resistant halogen-free low-smoke refractory wire according to another embodiment;

fig. 3 is a schematic diagram of an internal structure of a thermal insulation layer according to an embodiment.

Detailed Description

The technical solution of the present utility model will be further described below with reference to the accompanying drawings of the embodiments of the present utility model, and the present utility model is not limited to the following specific embodiments. It should be noted that, without conflict, the embodiments of the present utility model and features of the embodiments may be combined with each other.

As shown in fig. 1 to 3, a low-temperature cold-resistant halogen-free low-smoke refractory wire comprises: copper conductor 100, first insulating layer 200, second insulating layer 300, third insulating layer 400, fourth insulating layer 500, fifth insulating layer 600, and protective layer 700; the first insulating layer 200 is located outside the copper conductor 100, the second insulating layer 300 is located on a side of the first insulating layer 200 away from the copper conductor 100, the third insulating layer 400 is located on a side of the second insulating layer 300 away from the first insulating layer 200, the fourth insulating layer 500 is located on a side of the third insulating layer 400 away from the second insulating layer 300, the fifth insulating layer 600 is located on a side of the fourth insulating layer 500 away from the third insulating layer 400, and the protective layer 700 is located on a side of the fifth insulating layer 600 away from the fourth insulating layer 500.

Specifically, the first insulating layer 200 is a gold mica tape, and the first insulating layer 200 is wrapped. That is, the whole copper conductor 100 is wrapped with the gold mica tape in a wrapping manner, and the gold mica tape has excellent fire resistance, acid and alkali resistance, corona resistance, radiation resistance, and flexibility and tensile strength. By using the gold mica tape for wrapping, the whole electric wire can be ensured not to break down for 90 minutes under the condition of the temperature of 840 ℃ and the voltage of 1000V, so that the electric wire has continuous working capacity under extreme environment.

In the above embodiment, the second insulating layer 300 is a crosslinked polyolefin insulating layer, the third insulating layer 400 is a low-density polyethylene insulating layer, the fourth insulating layer 500 is a crosslinked polyolefin insulating layer, and the fifth insulating layer 600 is a low-density polyethylene insulating layer, that is, a cross structure of the crosslinked polyolefin insulating layer and the low-density polyethylene insulating layer is adopted, so that the performance in aspects of extension, oil resistance, cold resistance, cracking resistance and the like can be well improved, and the whole electric wire can be used in a more severe environment.

In one embodiment, the protective layer 700 is a fiber woven layer, and by using the fiber woven layer, the whole electric wire can be well protected from being damaged by various light, heat, tide, low temperature, acid-base gas and the like and external mechanical force, and the safe operation of the electric wire is ensured.

In one embodiment, the thicknesses of the first insulating layer 200, the second insulating layer 300, the third insulating layer 400, the fourth insulating layer 500 and the fifth insulating layer 600 are 0.5-3.6mm, the thicknesses meet the thickness specification of the specification corresponding to the related product standard, the material has excellent halogen-free low smoke flame retardant property, the thickness of the protective layer 700 is 1.5-6mm, the specific thickness meets the thickness specification of the specification corresponding to the related product standard, and the material has excellent physical and mechanical properties, halogen-free low smoke flame retardant property, oil resistance, acid and alkali resistance, excellent fire resistance and the like.

In one embodiment, the low-temperature cold-resistant halogen-free low-smoke refractory wire further comprises a heat insulation layer 800, and the heat insulation layer 800 is disposed between the fifth insulation layer 600 and the protection layer 700. The inside and the outside of insulating layer 800 are made by glass fiber 810, and set up the glass fiber 810 intussuseption on insulating layer 800 and fill has aerogel felt 811, through setting up this structure, can be fine with inside temperature separation inside, that is avoid the electric wire to influence outside other electrical components because of the high temperature in the use promptly, also can play fine heat preservation effect under abominable environment to whole electric wire simultaneously.

In summary, the above-described embodiments are not intended to be limiting embodiments of the present utility model, and modifications and equivalent variations, which are within the spirit and scope of the present utility model, will be within the technical scope of the present utility model.

Claims

1. A low temperature cold resistant halogen free low smoke refractory wire comprising: a copper conductor, a first insulating layer, a second insulating layer, a third insulating layer, a fourth insulating layer, a fifth insulating layer and a protective layer;

2. The low temperature cold resistant halogen free low smoke refractory wire according to claim 1, wherein: the first insulating layer is a gold mica tape, and is formed by wrapping the first insulating layer.

3. The low temperature cold resistant halogen free low smoke refractory wire according to claim 1, wherein: the second insulating layer is a crosslinked polyolefin insulating layer.

4. The low temperature cold resistant halogen free low smoke refractory wire according to claim 1, wherein: the third insulating layer is a low-density polyethylene insulating layer.

5. The low temperature cold resistant halogen free low smoke refractory wire according to claim 1, wherein: the fourth insulating layer is a crosslinked polyolefin insulating layer.

6. The low temperature cold resistant halogen free low smoke refractory wire according to claim 1, wherein: the fifth insulating layer is a low-density polyethylene insulating layer.

7. The low temperature cold resistant halogen free low smoke refractory wire according to claim 1, wherein: the protective layer is a fiber woven layer.

8. The low temperature cold resistant halogen free low smoke refractory wire according to claim 1, wherein: the thicknesses of the first insulating layer, the second insulating layer, the third insulating layer, the fourth insulating layer and the fifth insulating layer are 0.5-3.6mm.

9. The low temperature cold resistant halogen free low smoke refractory wire according to claim 1, wherein: the thickness of the protective layer is 1.5-6mm.

10. The low temperature cold resistant halogen free low smoke refractory wire according to claim 1, wherein: the heat insulation layer is arranged between the fifth insulating layer and the protective layer.