CN213519343U

CN213519343U - Flame-retardant fire-resistant high-temperature cable

Info

Publication number: CN213519343U
Application number: CN202021887901.4U
Authority: CN
Inventors: 王成彬; 李明; 华小芳
Original assignee: SHANGHAI SHENYUAN HI-TEMP WIRE CO LTD
Current assignee: SHANGHAI SHENYUAN HI-TEMP WIRE CO LTD
Priority date: 2020-09-02
Filing date: 2020-09-02
Publication date: 2021-06-22
Anticipated expiration: 2030-09-02

Abstract

The utility model provides a fire-retardant fire-resistant high temperature cable, it includes conductor sinle silk (1) its characterized in that, conductor sinle silk (1) is provided with insulating layer (2) outward, is provided with filling layer (3) between conductor sinle silk (1) of a plurality of claddings insulating layer (2), winds package around package (4) insulating layer (2) and filling layer (3) surface, there is shielding layer (5) around package (4) surface cladding, shielding layer (5) cover has oversheath (6). Compared with the fire-resistant cable on the market at present, the cable has more excellent flame-retardant and fire-resistant effects and good safety, and is very suitable for important departments and public places such as high-rise buildings, subways, power plants, nuclear power stations and the like.

Description

Flame-retardant fire-resistant high-temperature cable

Technical Field

The utility model belongs to the wire and cable field, concretely relates to fire-retardant fire-resistant high temperature cable.

Background

The wire and cable industry is an important matching industry for economic construction and is widely applied to various fields of national economy. In recent years, with the continuous and rapid development of economy and the advance of urbanization in China, the wire and cable industry keeps a higher growth speed, and correspondingly, higher requirements on the flame retardant and fire resistant performance of the wire and cable are also met. Fire-resistant cables are widely used in important departments such as high-rise buildings, subways, power plants, nuclear power plants and the like and in public places. Meanwhile, a plurality of capital constructions begin to use the blue-green fire-resistant cable, so that after a fire disaster happens, a power supply system can keep stable and normal operation, the expansion of rescue work is facilitated, and casualties and financial loss of personnel are reduced as much as possible.

At present, a magnesium oxide mineral fire-resistant cable and a mica tape fire-resistant cable are mostly adopted, and the former has high manufacturing cost and large manufacturing and laying difficulty; the sheath used by the latter is made of common flame-retardant low-smoke high polymer materials, such as plastics, rubber and silicon rubber, and the residues after combustion are ash. And after the fire, the mica tape is crisp and easy to fall off, and the fire-resistant effect is poor, so that the communication and the electric power are difficult to ensure to be safe and smooth for a long time under the condition of fire, and the requirements on flame retardance and fire resistance cannot be met.

SUMMERY OF THE UTILITY MODEL

The utility model aims at that to above-mentioned current fire-resistant cable with high costs, the poor technical defect of fire-retardant fire resistance provides a fire-retardant fire-resistant high temperature cable, not only has excellent fire behavior, improves the fire-resistant grade of cable moreover for it is safer when important departments and public places such as high-rise building, subway, power plant, nuclear power station use, through adopting the fire-retardant fire-resistant structure of multilayer, the security of product is high.

Technical scheme

In order to realize above-mentioned technical purpose, the utility model provides a pair of fire-retardant fire-resistant high temperature cable, it includes the conductor sinle silk its characterized in that, the conductor sinle silk is provided with the insulating layer outward, is provided with the filling layer between the conductor sinle silk of a plurality of claddings insulating layer, winds the covering and winds the package insulating layer and filling layer surface, there is the shielding layer around covering surface cladding, the shielding layer cover has the oversheath.

Furthermore, the insulating layer includes glass fiber insulating layer one, the outer package of glass fiber insulating layer one has fire-resistant mica tape insulating layer, the outer glass fiber insulating layer two of having woven of fire-resistant mica tape insulating layer, glass fiber insulating layer one is woven the conductor sinle silk surface.

Furthermore, the conductor wire core is formed by twisting plated copper wires.

Furthermore, the thickness of the insulating layer is 0.5-1.5 mm.

Furthermore, the filling layer is made of glass fiber.

Further, be mica tape around the covering for fix filling layer and conductor sinle silk, the thickness around the covering is 0.2 ~ 0.5 mm.

Furthermore, the shielding layer is formed by weaving plated copper wires.

Further, the outer sheath is made of ceramic silicon rubber, and the thickness of the outer sheath is 0.6-2.0 mm.

Advantageous effects

The utility model provides a pair of fire-retardant fire-resistant high temperature cable compares with the fire-resistant cable on the existing market, has more excellent fire-retardant fire-resistant effect, and the security is good, and important departments and public places such as very suitable high-rise building, subway, power plant, nuclear power station use.

Drawings

Fig. 1 is a schematic structural diagram of an embodiment of the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.

Examples

As shown in the attached drawing 1, the flame-retardant fire-resistant high-temperature cable is characterized by comprising a conductor wire core 1, wherein an insulating layer 2 is arranged outside the conductor wire core 1, a filling layer 3 is arranged between the conductor wire cores 1 coated with the insulating layer 2, a winding layer 4 is wound on the outer surfaces of the insulating layer 2 and the filling layer 3, a shielding layer 5 is coated on the outer surface of the winding layer 4, and an outer sheath 6 is sleeved on the shielding layer 5.

The insulating layer 2 comprises a first glass fiber insulating layer 201, a second glass fiber insulating layer 203 is wound outside the first glass fiber insulating layer 201, and the first glass fiber insulating layer 201 is woven on the outer surface of the conductor wire core 1.

The conductor wire core 1 is formed by twisting coated copper wires.

The thickness of the insulating layer 2 is 0.5-1.5 mm.

The filling layer 3 is made of glass fiber.

The mica tape is wrapped to covering 4 for fix filling layer 3 and conductor sinle silk 1, be 0.2 ~ 0.5mm around the thickness of covering 4.

The shielding layer 5 is formed by weaving a plated copper wire.

The outer sheath 6 is made of ceramic silicon rubber, and the thickness of the outer sheath 6 is 0.6-2.0 mm.

The utility model provides a pair of fire-retardant fire-resistant high temperature cable, conductor and shielding are cladding material copper conductor, and when using in high temperature environment, the cladding material conductor has good corrosion resistance and oxidation resistance, and life is longer. The insulation is glass fiber and mica tape, and has good electrical insulation, thermal stability and aging resistance. The glass fiber adopts a weaving form, has good mechanical property and long service life. During cabling, glass fiber is used as filling, so that the roundness of the electric wire and the electric cable can be ensured; after the plurality of wire cores are twisted, the mica tape is used for wrapping, so that the shape stability of the wire and cable is ensured, and the effects of flame retardance, fire resistance and protection of the wire cores from damage can be achieved; and the sheath is made of ceramic silicon rubber. When fire occurs around the cable, the outer sheath is converted into a hard ceramic-like substance to form a hard ceramic-like hard shell, and even if the fire burns beyond the fire-resistant limit, the hard ceramic-like hard shell can still be formed by ablation, and the hard ceramic-like hard shell can prevent flame from further extending towards the interior of the cable, so that the insulating effect is achieved. Compared with the fire-resistant cable on the market at present, the cable has more excellent flame-retardant and fire-resistant effects and good safety, and is very suitable for important departments and public places such as high-rise buildings, subways, power plants, nuclear power stations and the like.

In the description herein, references to the description of "one embodiment," "an example," "a specific example," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The preferred embodiments of the present invention disclosed above are intended only to help illustrate the present invention. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and its practical applications, to thereby enable others skilled in the art to best understand the invention for and utilize the invention. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. The flame-retardant fire-resistant high-temperature cable is characterized by comprising conductor wire cores (1), wherein insulating layers (2) are arranged outside the conductor wire cores (1), filling layers (3) are arranged between the conductor wire cores (1) coated with the insulating layers (2), the wrapping layers (4) are wrapped on the outer surfaces of the insulating layers (2) and the filling layers (3), shielding layers (5) are coated on the outer surfaces of the wrapping layers (4), and outer sheaths (6) are sleeved on the shielding layers (5);

the conductor wire core (1) is formed by stranding plated copper wires;

the thickness of the insulating layer (2) is 0.5-1.5 mm;

the filling layer (3) is made of glass fiber;

the winding layer (4) is a mica tape and is used for fixing the filling layer (3) and the conductor wire core (1), and the thickness of the winding layer (4) is 0.2-0.5 mm;

the shielding layer (5) is formed by weaving plated copper wires;

the outer sheath (6) is made of ceramic silicon rubber, and the thickness of the outer sheath (6) is 0.6-2.0 mm.

2. A flame retardant, fire resistant high temperature cable according to claim 1, wherein: insulating layer (2) are including glass fiber insulating layer one (201), the outer package of glass fiber insulating layer one (201) has fire-resistant mica tape insulating layer (202), fire-resistant mica tape insulating layer (202) is woven outward and is had glass fiber insulating layer two (203), glass fiber insulating layer one (201) is woven conductor sinle silk (1) surface.