CN219202827U

CN219202827U - Flame-retardant fireproof power cable with crusting capability

Info

Publication number: CN219202827U
Application number: CN202222160234.5U
Authority: CN
Inventors: 王建斌; 夏自然
Original assignee: Shanghai Durant Electronics Co ltd
Current assignee: Shanghai Durant Electronics Co ltd
Priority date: 2022-08-17
Filing date: 2022-08-17
Publication date: 2023-06-16
Anticipated expiration: 2032-08-17

Abstract

The utility model relates to a flame-retardant fireproof power cable with crusting capability, which comprises a body, wherein a protective component is arranged on the outer side of the body, a filler is fixed on the outer side of the protective component, a crusting component is arranged on the outer side of the filler, the crusting component comprises a heat insulation layer fixed on the outer side of the filler, a crust layer is fixed on the outer side of the heat insulation layer, and a flame-retardant layer is fixed on the outer side of the crust layer. This fire-retardant fire prevention fire-resistant power cable with crusting ability is provided with crusting subassembly and protective component, and the fire prevention fire-resistant ability of cable can effectually be improved to the crusting subassembly, can protect the cable through insulating layer, crust layer, fire-retardant layer, armor, oversheath and wearing layer to improve the life of cable, protective component can protect the cable, through the cooperation of insulating layer, inner sheath and shielding layer, avoids the cable to receive the influence at the result of use of cable under high temperature environment, makes the practicality of cable better.

Description

Flame-retardant fireproof power cable with crusting capability

Technical Field

The utility model relates to the technical field of power cables, in particular to a flame-retardant fireproof fire-resistant power cable with crusting capacity.

Background

The power cable is a cable for transmitting and distributing electric energy, and is commonly used for urban underground power grids, power station outgoing lines, and power supply and river-crossing underwater transmission lines in industrial and mining enterprises, and in the power lines, the proportion of the cable is gradually increasing.

The existing flame-retardant fireproof power cable has certain fireproof performance, but the fireproof performance is poor, the occasion and standard with lower fireproof requirements can be met, but the occasion and standard with higher fireproof requirements are difficult to meet, and under the high-temperature environment, the fireproof layer on the existing power cable is easy to burn out and fall off, so that the cable is short-circuited or broken, and the effect of the power cable in use is reduced.

Disclosure of Invention

Aiming at the defects of the prior art, the utility model provides a flame-retardant fireproof power cable with crusting capacity, which has the advantages of good use effect and the like, and solves the problem that the cable is difficult to adapt to occasions and standards with higher fireproof requirements.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the flame-retardant fireproof power cable with the crusting capacity comprises a body, wherein a protection assembly is arranged on the outer side of the body, a filler is fixed on the outer side of the protection assembly, and a crusting assembly is arranged on the outer side of the filler;

the crust assembly comprises a heat insulation layer fixed on the outer side of a filler, a crust layer is fixed on the outer side of the heat insulation layer, a flame retardant layer is fixed on the outer side of the crust layer, an armor layer is fixed on the outer side of the flame retardant layer, an outer sheath is fixed on the outer side of the armor layer, and a wear-resistant layer is fixed on the outer side of the outer sheath.

Further, the protection component comprises an insulating layer fixed on the outer side of the body, an inner sheath is fixed on the outer side of the insulating layer, and a shielding layer is fixed on the outer side of the inner sheath.

Further, the heat insulation layer is an aramid fiber layer, and the junction shell layer is a ceramic silicon rubber layer.

Further, the flame retardant layer is a fireproof mud layer, and the armor layer is a steel wire hot galvanizing material layer.

Further, the outer sheath is a flame-retardant polyolefin layer, and the wear-resistant layer is an ABS resin layer.

Further, the filler is asbestos, and the insulating layer is a magnetized silica gel layer.

Further, the inner sheath is a polyethylene layer, and the shielding layer is a metal plastic composite layer.

Compared with the prior art, the technical scheme of the application has the following beneficial effects:

1. this fire-retardant fire prevention fire-resistant power cable with crusting ability is provided with crusting subassembly, and the fire prevention fire-resistant ability of cable can effectually be improved to the crusting subassembly, can protect the cable through insulating layer, knot shell layer, fire-retardant layer, armor, oversheath and wearing layer to improve the life of cable.

2. This fire-retardant fire prevention fire-resistant power cable with crusting ability is provided with the protection subassembly, and the protection subassembly can protect the cable, through the cooperation of insulating layer, inner sheath and shielding layer, avoids the cable to receive the influence at the result of use of cable under high temperature environment, makes the practicality of cable better.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is a schematic view of a cruster assembly of the present utility model;

fig. 3 is a schematic view of a protective component according to the present utility model.

In the figure: 1 body, 2 crust components, 201 heat insulation layers, 202 crust layers, 203 flame retardant layers, 204 armor layers, 205 outer jackets, 206 wear-resistant layers, 3 protection components, 301 insulating layers, 302 inner jackets, 303 shielding layers and 4 filling materials.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1, a flame-retardant fireproof power cable with a crusting capability in this embodiment includes a main body 1, a protection component 3 is disposed on the outer side of the main body 1, a filler 4 is fixed on the outer side of the protection component 3, the filler 4 is asbestos, the asbestos prevents the cable from generating flame when encountering fire, and a crusting component 2 is disposed on the outer side of the filler 4.

Referring to fig. 2, the crusting component 2 in this embodiment includes a thermal insulation layer 201 fixed on the outer side of the filler 4, the thermal insulation layer 201 can reduce the influence of the high temperature environment on the cable, the crusting layer 202 is fixed on the outer side of the thermal insulation layer 201, the crusting layer 202 can form a ceramic shell in a high temperature state, the higher the temperature is, the higher the hardness of the ceramic shell is, so as to protect the internal structure of the cable, a flame retardant layer 203 is fixed on the outer side of the crusting layer 202, the flame retardant layer 203 can reduce fire loss, avoid the expansion of accidents, an armor layer 204 is fixed on the outer side of the flame retardant layer 203, the armor layer 204 can protect the cable, the strength of the cable is increased, an outer sheath 205 is fixed on the outer side of the armor layer 204, the flame retardant property of the cable can be effectively improved, the cable is prevented from being influenced by the high temperature environment or open flame, a wear-resistant layer 206 is fixed on the outer side of the outer sheath 205, the wear-resistant layer 206 can improve the wear-resistant effect of the outer sheath 205, and the service life of the cable is prolonged.

The insulating layer 201 is an aramid layer, the node shell layer 202 is a ceramic silicon rubber layer, the flame retardant layer 203 is a fireproof mud layer, the armor layer 204 is a steel wire hot galvanizing material layer, the outer sheath 205 is a flame retardant polyolefin layer, and the wear-resistant layer 206 is an ABS resin layer.

The use effect of the cable in a high-temperature environment or in the presence of open fire can be improved through the heat insulation layer 201, the crust layer 202, the flame retardant layer 203, the armor layer 204, the outer sheath 205 and the wear-resistant layer 206.

The above-mentioned crust assembly 2 can effectually improve the fire prevention fire-resistant ability of cable, can protect the cable through insulating layer 201, crust layer 202, fire-retardant layer 203, armor 204, oversheath 205 and wearing layer 206 to improve the life of cable.

Referring to fig. 3, the protection component 3 in this embodiment includes an insulation layer 301 fixed on the outer side of the body 1, where the insulation layer 301 can generate a magnetized crust under a high temperature environment, so that the cable structure is stable, the insulation performance of the cable under high temperature is ensured, an inner sheath 302 is fixed on the outer side of the insulation layer 301, the inner sheath 302 can ensure the electrical performance of the cable, a shielding layer 303 is fixed on the outer side of the inner sheath 302, and the shielding layer 303 can reduce the influence of the external electromagnetic field on the power supply or the communication line.

The insulating layer 301 is a magnetized silica gel layer, the inner sheath 302 is a polyethylene layer, and the shielding layer 303 is a metal plastic composite layer.

The cable is not excessively affected in a high temperature environment by the cooperation of the insulating layer 301, the inner sheath 302 and the shielding layer 303.

Above-mentioned protection component 3 can protect the cable, through the cooperation of insulating layer 301, inner sheath 302 and shielding layer 303, avoids the cable to receive the influence at the result of use of cable under high temperature environment, makes the practicality of cable better.

The working principle of the embodiment is as follows:

(1) When the power cable is used in a high-temperature environment or is exposed to fire, the outer sheath 205 formed by flame-retardant polyolefin can effectively improve the flame retardant property of the cable, the cable is prevented from being influenced by the high-temperature environment or the fire, the wear-resistant layer 206 formed by ABS resin can improve the wear-resistant effect of the outer sheath 205, the service life of the cable is prolonged, the flame-retardant layer 203 formed by fireproof mud can prevent fire of the cable from spreading to an adjacent chamber from holes, the fire loss is reduced, the expansion of accidents is avoided, the cable has the functions of smoke resistance, fire resistance, dust resistance and the like, the armor layer 204 is formed by steel wire hot galvanizing materials, the cable can be protected, the strength of the cable is improved, the crusting layer 202 formed by ceramic silicon rubber can be formed into a ceramic shell in a high-temperature state, the higher temperature is, the hardness of the ceramic shell is higher, the heat-insulating layer 201 formed by aramid fiber has excellent performances of high strength, high temperature resistance, acid resistance, alkali resistance, light weight and the like, and the influence of the high-temperature environment on the cable is reduced.

(2) Meanwhile, the inner sheath 302 composed of polyethylene is matched with asbestos to prevent flame from being generated when the cable encounters fire, the electric performance of the cable can be guaranteed, the shielding layer 303 is composed of metal plastic in a compounding mode, the influence of an external electric magnetic field on a power supply or a communication line can be reduced, the insulating layer 301 composed of magnetized silica gel enables the insulating layer 301 to have good fire resistance while insulating, magnetized crust is generated in a high-temperature environment, the cable is stable in structure, the insulating performance of the cable at a high temperature is guaranteed, and the cable can still keep electrified after firing.

It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a fire-retardant fire prevention fire-resistant power cable with crusting ability, includes body (1), its characterized in that: the outer side of the body (1) is provided with a protection component (3), a filler (4) is fixed on the outer side of the protection component (3), and a crust component (2) is arranged on the outer side of the filler (4);

the crust assembly (2) comprises a heat insulation layer (201) fixed on the outer side of a filler (4), a crust layer (202) is fixed on the outer side of the heat insulation layer (201), a flame retardant layer (203) is fixed on the outer side of the crust layer (202), an armor layer (204) is fixed on the outer side of the flame retardant layer (203), an outer sheath (205) is fixed on the outer side of the armor layer (204), and a wear-resistant layer (206) is fixed on the outer side of the outer sheath (205).

2. A flame retardant, fire resistant and fire resistant power cable having a crust breaking capability as set forth in claim 1 wherein: the protection component (3) comprises an insulating layer (301) fixed on the outer side of the body (1), an inner sheath (302) is fixed on the outer side of the insulating layer (301), and a shielding layer (303) is fixed on the outer side of the inner sheath (302).

3. A flame retardant, fire resistant and fire resistant power cable having a crust breaking capability as set forth in claim 1 wherein: the heat insulation layer (201) is an aramid fiber layer, and the crust layer (202) is a ceramic silicon rubber layer.

4. A flame retardant, fire resistant and fire resistant power cable having a crust breaking capability as set forth in claim 1 wherein: the flame retardant layer (203) is a fireproof mud layer, and the armor layer (204) is a steel wire hot galvanizing material layer.

5. A flame retardant, fire resistant and fire resistant power cable having a crust breaking capability as set forth in claim 1 wherein: the outer sheath (205) is a flame-retardant polyolefin layer, and the wear-resistant layer (206) is an ABS resin layer.

6. A flame retardant, fire resistant and fire resistant power cable having a crust breaking capability as defined in claim 2, wherein: the filler (4) is asbestos, and the insulating layer (301) is a magnetized silica gel layer.

7. A flame retardant, fire resistant and fire resistant power cable having a crust breaking capability as defined in claim 2, wherein: the inner sheath (302) is a polyethylene layer, and the shielding layer (303) is a metal plastic composite layer.