CN219696137U

CN219696137U - Flame-retardant power line

Info

Publication number: CN219696137U
Application number: CN202320929421.7U
Authority: CN
Inventors: 崔巍
Original assignee: Jiangsu Rising Intelligent Technology Co ltd
Current assignee: Jiangsu Rising Intelligent Technology Co ltd
Priority date: 2023-04-23
Filing date: 2023-04-23
Publication date: 2023-09-15
Anticipated expiration: 2033-04-23

Abstract

The utility model discloses a flame-retardant power line, which comprises a wire core and a cut-preventing wire sleeve, wherein an inner protective sleeve and an outer protective sleeve are arranged between the wire core and the cut-preventing wire sleeve, the inner protective sleeve consists of an insulating sheath, a ceramic fiber layer, a flame-retardant sleeve and a flame-retardant layer, the insulating sheath is wrapped on the wire core, an antioxidant filling layer is filled in the insulating sheath, the ceramic fiber layer is wrapped on the outer wall of the insulating sheath, the flame-retardant sleeve is wrapped on the outer wall of the ceramic fiber layer, and the flame-retardant layer is wrapped on the outer wall of the flame-retardant sleeve. The beneficial effects are that: the inner protective sleeve has the advantages of good high temperature resistance and flame retardance, and the ceramic fiber layer has the advantages of light weight, high temperature resistance, good thermal stability, low heat conductivity, small specific heat, mechanical shock resistance and the like, so that the power line cannot be softened or damaged when being used in a high-temperature environment, the flame-retardant sleeve and the flame-retardant layer avoid the phenomenon that the power line burns at high temperature, and the use of the power line is ensured.

Description

Flame-retardant power line

Technical Field

The utility model relates to the technical field of power lines, in particular to a flame-retardant power line.

Background

The power line is a wire that carries current, typically in a point-to-point fashion. The power line can be divided into an AC power line and a DC power line according to the application, and usually the AC power line is a wire passing through alternating current with higher voltage, and the wire can be formally produced because the voltage is higher and the unified standard is needed to obtain a safety certification party.

When the power line is excessively heavy in line load and ageing of the line, internal materials are ignited to cause fire caused by the rise of the temperature of the power line, and the power line is usually used in dark and moist or sunlight high-temperature environments, the phenomenon that the power line burns easily occurs at high temperature is difficult to meet the use of the power line in different environments, and the application range is small.

For the problems in the related art, no effective solution has been proposed at present.

Disclosure of Invention

Aiming at the problems in the related art, the utility model provides a flame-retardant power line to overcome the technical problems in the prior art.

For this purpose, the utility model adopts the following specific technical scheme:

the utility model provides a fire-retardant power cord, includes sinle silk and prevents the secant cover, the sinle silk with prevent being equipped with interior lag and outer lag between the secant cover, interior lag comprises insulating sheath, ceramic fiber layer, fire-retardant sleeve pipe and flame retardant coating, insulating sheath parcel in the sinle silk, just insulating sheath intussuseption is filled with the anti-oxygen filling layer, insulating sheath's outer wall parcel has ceramic fiber layer, ceramic fiber layer's outer wall parcel has fire-retardant sleeve pipe, fire-retardant sheathed tube outer wall parcel has the flame retardant coating.

Preferably, the outer protective sleeve consists of an insulating layer, a composite high temperature resistant layer, a tensile layer, a waterproof layer and a soft adhesive layer.

Preferably, the insulating layer is wrapped on the outer wall of the fireproof layer, the outer wall of the insulating layer is wrapped with the composite high-temperature resistant layer, the outer wall of the composite high-temperature resistant layer is wrapped with the tensile layer, the outer wall of the tensile layer is wrapped with the waterproof layer, and the outer wall of the waterproof layer is wrapped with the soft adhesive layer. Preferably, the outer wall of the soft adhesive layer is wrapped with the anti-secant sleeve, and a sun-proof protective layer is arranged between the anti-secant sleeve and the soft adhesive layer.

Preferably, a heat conducting metal net layer is arranged in the secant preventing sleeve, and the heat conducting metal net layer is a galvanized steel wire woven net.

Preferably, the outer wall of the secant preventing sleeve is coated with a wear-resistant coating, and the wear-resistant coating is polyurethane paint.

The beneficial effects of the utility model are as follows: the inner protective sleeve has better high temperature resistance and flame retardance, and the ceramic fiber layer has the advantages of light weight, high temperature resistance, good thermal stability, low heat conductivity, small specific heat, mechanical shock resistance and the like, so that the power line cannot be softened or damaged when being used in a high-temperature environment, the flame-retardant sleeve and the flame-retardant layer avoid the phenomenon of high-temperature combustion of the power line, and the use of the power line is ensured; the outer protective sleeve reduces the problem of overhigh temperature outside the power line caused by direct sunlight, and further improves the heat insulation capability of the power line.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic structural view of a flame retardant power line according to an embodiment of the present utility model;

FIG. 2 is a cross-sectional view of an inner shield in a flame retardant power cord in accordance with an embodiment of the utility model;

fig. 3 is a cross-sectional view of an outer jacket in a flame retardant power cord in accordance with an embodiment of the utility model.

In the figure:

1. a wire core; 2. a thread cutting prevention sleeve; 3. an inner protective sleeve; 4. an outer protective sleeve; 5. an insulating sheath; 6. a ceramic fiber layer; 7. a flame retardant sleeve; 8. a fire-blocking layer; 9. an insulating layer; 10. a composite high temperature resistant layer; 11. a tensile layer; 12. a waterproof layer; 13. a soft adhesive layer; 14. a sun protection layer; 15. a heat conductive metal mesh layer.

Description of the embodiments

For the purpose of further illustrating the various embodiments, the present utility model provides the accompanying drawings, which are a part of the disclosure of the present utility model, and which are mainly used to illustrate the embodiments and, together with the description, serve to explain the principles of the embodiments, and with reference to these descriptions, one skilled in the art will recognize other possible implementations and advantages of the present utility model, wherein elements are not drawn to scale, and like reference numerals are generally used to designate like elements.

According to an embodiment of the present utility model, there is provided a flame retardant power cord.

Examples

As shown in fig. 1-3, a flame-retardant power line according to an embodiment of the utility model comprises a wire core 1 and a secant prevention sleeve 2, an inner protective sleeve 3 and an outer protective sleeve 4 are arranged between the wire core 1 and the secant prevention sleeve 2, the inner protective sleeve 3 is composed of an insulating sheath 5, a ceramic fiber layer 6, a flame-retardant sleeve 7 and a flame-retardant layer 8, the insulating sheath 5 is wrapped on the wire core 1, an antioxidant filling layer is filled in the insulating sheath 5, the ceramic fiber layer 6 is wrapped on the outer wall of the insulating sheath 5, the flame-retardant sleeve 7 is wrapped on the outer wall of the ceramic fiber layer 6, and the flame-retardant layer 8 is wrapped on the outer wall of the flame-retardant sleeve 7.

Examples

As shown in fig. 1-3, the outer protective sleeve 4 is composed of an insulating layer 9, a composite high temperature resistant layer 10, a tensile layer 11, a waterproof layer 12 and a soft adhesive layer 13, wherein the insulating layer 9 is wrapped on the outer wall of the fireproof layer 8, the composite high temperature resistant layer 10 is wrapped on the outer wall of the insulating layer 9, the tensile layer 11 is wrapped on the outer wall of the composite high temperature resistant layer 10, the waterproof layer 12 is wrapped on the outer wall of the tensile layer 11, and the soft adhesive layer 13 is wrapped on the outer wall of the waterproof layer 12.

Examples

As shown in fig. 1-3, the outer wall of the soft adhesive layer 13 is wrapped with a secant preventing sleeve 2, a sun-proof protective layer 14 is arranged between the secant preventing sleeve 2 and the soft adhesive layer 13, a heat conducting metal net layer 15 is arranged in the secant preventing sleeve 2, the heat conducting metal net layer 15 is a galvanized steel wire woven net, the outer wall of the secant preventing sleeve 2 is coated with a wear-resistant coating, and the wear-resistant coating is polyurethane paint.

The main performance indexes of the cable are as follows;

thermal deformation/% (120C 3.5N) is less than or equal to 40

The heat stability time/min at 20 ℃ is more than or equal to 80

Volume resistivity at 20 ℃ per omega.m is more than or equal to 1.0X10 ⁹

The dielectric strength/(MV/m) is more than or equal to 18.

In summary, by means of the technical scheme, the inner protective sleeve 3 has better high temperature resistance and flame retardance, and the arrangement of the ceramic fiber layer has the advantages of light weight, high temperature resistance, good thermal stability, low heat conductivity, small specific heat, mechanical shock resistance and the like, so that the power line cannot be softened or damaged when being used in a high-temperature environment, the flame-retardant sleeve 7 and the flame-retardant layer 8 avoid the phenomenon of high-temperature combustion of the power line, and the use of the power line is ensured; and the outer protective sleeve 4 reduces the problem of overhigh external temperature of the power line caused by direct sunlight, and further improves the heat insulation capability of the power line.

The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the utility model.

Claims

1. The utility model provides a fire-retardant power cord, includes sinle silk (1) and prevents secant cover (2), its characterized in that, sinle silk (1) with prevent being equipped with between secant cover (2) interior lag (3) and outer lag (4), interior lag (3) are by insulating sheath (5), ceramic fiber layer (6), fire-retardant sleeve (7) and flame retardant coating (8) are constituteed, insulating sheath (5) parcel in sinle silk (1), just insulating sheath (5) intussuseption is filled with the anti-oxidant filling layer, the outer wall parcel of insulating sheath (5) has ceramic fiber layer (6), the outer wall parcel of ceramic fiber layer (6) has flame retardant sleeve (7), the outer wall parcel of flame retardant sleeve (7) has flame retardant coating (8).

2. A flame retardant power cord according to claim 1, characterized in that the outer protective sheath (4) consists of an insulating layer (9), a composite high temperature resistant layer (10), a tensile layer (11), a waterproof layer (12) and a soft gel layer (13).

3. A fire-retardant power cord according to claim 2, characterized in that the insulating layer (9) is wrapped on the outer wall of the fire-retardant layer (8), the outer wall of the insulating layer (9) is wrapped with the composite high temperature resistant layer (10), the outer wall of the composite high temperature resistant layer (10) is wrapped with the tensile layer (11), the outer wall of the tensile layer (11) is wrapped with the waterproof layer (12), and the outer wall of the waterproof layer (12) is wrapped with the soft adhesive layer (13).

4. A flame retardant power cord according to claim 3, characterized in that the outer wall of the soft adhesive layer (13) is wrapped with the anti-cut thread sleeve (2), and a sun protection layer (14) is arranged between the anti-cut thread sleeve (2) and the soft adhesive layer (13).

5. The flame-retardant power line according to claim 1, characterized in that a heat-conducting metal net layer (15) is arranged in the anti-cutting line sleeve (2), and the heat-conducting metal net layer (15) is a galvanized steel wire woven net.

6. A flame-retardant power cord according to claim 1, characterized in that the outer wall of the anti-cut wire sleeve (2) is coated with a wear-resistant coating, which is polyurethane paint.