Fireproof power cable

Abstract

The utility model discloses a fireproof power cable comprising a cable core, the surface of the cable core is provided with an insulating layer, one side of the insulating layer far away from the cable core is provided with a shielding layer, one side of the shielding layer far away from the insulating layer is provided with a filling layer, the filling layer is internally provided with a reinforcing core, the outer side of the filling layer is provided with a protection tube, and the protection tube is provided with a sheath. Through the arrangement of the two bearing wires, the dead weight of the cable is uniformly spread by the two bearing wires, the phenomenon that a single bearing wire is damaged due to overlarge load is avoided, through the arrangement of the filling layer, the flame-retardant effect is achieved, meanwhile, buffer protection can be conducted when the cable is extruded, and through the arrangement of the reinforcing core and the reinforcing ribs, the cable is prevented from being damaged. The cable can be prevented from being broken due to pulling in the installation process, combustion caused by high temperature can be prevented through the arrangement of the heat insulation layer and the flame retardant layer, the cable is made to have high fireproof performance, and certain corrosion resistance is provided for the cable body through the arrangement of the corrosion-resistant layer.

Description

Technical Field

[0001] The utility model relates to the technical field of power cables, in particular to a fireproof power cable. Background Art

[0002] In a narrow sense, cable refers to a device for transmitting electrical signals made of one or more mutually insulated conductors covered with an insulating layer and a protective layer. Cable can transmit electricity or information from one place to another. In a broad sense, cable refers to a device that uses metal as a medium to transmit electrical signals. Cables can be divided into bare wires, insulated cables, heat-resistant cables, shielded cables, power cables, control cables, communication cables, and radio frequency cables according to their uses.

[0003] In recent years, with the continuous improvement of people's material and cultural living standards, the country has gradually attached importance to fire prevention work, and people's safety awareness has gradually increased. However, the hidden dangers of fire still exist around us. There are several wires in a general power cable. If a fire occurs on the power cable, a short circuit may occur between different wires. Moreover, traditional cables only rely on one load-bearing wire to bear the weight of the cable, which makes the cable often suffer from excessive force on the load-bearing wire and damage. Therefore, a fire-proof power cable is proposed. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides a fireproof power cable, which solves the problems in the above-mentioned background technology.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A fireproof power cable comprises a cable core, wherein an insulating layer is arranged on the surface of the cable core, a shielding layer is arranged on the side of the insulating layer away from the cable core, a filling layer is arranged on the side of the shielding layer away from the insulating layer, a reinforcing core is arranged inside the filling layer, a protective tube is arranged on the outside of the filling layer, a heat insulation layer is arranged on the side of the protective tube away from the filling layer, a flame retardant layer is arranged on the side of the heat insulation layer away from the protective tube, a corrosion-resistant layer is arranged on the side of the flame retardant layer away from the heat insulation layer, a wear-resistant layer is arranged on the side of the corrosion-resistant layer away from the flame retardant layer, a protective cover is arranged on the outer surface of the wear-resistant layer, and a load-bearing conductor is arranged inside the protective cover.

[0007] Preferably, the insulating layer is made of high-density polyethylene material, and the shielding layer is made of braided metal wires.

[0008] Preferably, the filling layer is made of cotton-like flame-retardant cotton.

[0009] Preferably, reinforcing ribs are fixedly connected between the protection tube and the reinforcing core, and the number of the reinforcing ribs is multiple groups.

[0010] Preferably, the heat insulation layer is made of alkali-free glass fiber material, and the flame retardant layer is made of overlapping and wrapped polyester tapes.

[0011] Preferably, the corrosion-resistant layer is made of aluminum oxide material, and the wear-resistant layer is made of polyvinyl chloride material.

[0012] Preferably, the protective sleeve and the load-bearing conductor are provided in two groups and are arranged symmetrically on both sides.

[0013] Compared with the prior art, the beneficial effects of the utility model are as follows: the fireproof power cable, through the arrangement of two load-bearing conductors, makes the dead weight of the cable be evenly distributed by the two load-bearing conductors, thus avoiding the phenomenon of damage caused by excessive load on a single load-bearing conductor; through the arrangement of the filling layer, while having a flame retardant effect, it can also provide buffer protection when the cable is squeezed; through the arrangement of the reinforcing core and the reinforcing ribs, the cable can be prevented from being pulled and broken during the installation process; through the arrangement of the heat insulation layer and the flame retardant layer, high temperature can be prevented from causing combustion, so that the cable has strong fire resistance; through the arrangement of the corrosion-resistant layer, a certain corrosion resistance is provided to the cable body. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural schematic diagram of the positive measurement of the utility model;

[0015] Figure 2 It is a structural schematic diagram of the first sectional view of the utility model;

[0016] Figure 3 It is a structural schematic diagram of the second sectional view of the utility model.

[0017] In the figure: 1. cable core; 2. insulation layer; 3. shielding layer; 4. filling layer; 5. reinforcing core; 6. protective tube; 7. reinforcing ribs; 8. thermal insulation layer; 9. flame retardant layer; 10. corrosion resistant layer; 11. wear resistant layer; 12. protective cover; 13. load-bearing conductor. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0019] Example: Refer to Figure 1-3The utility model provides a technical solution, a fireproof power cable, comprising a cable core 1, an insulating layer 2 is arranged on the surface of the cable core 1, a shielding layer 3 is arranged on the side of the insulating layer 2 away from the cable core 1, a filling layer 4 is arranged on the side of the shielding layer 3 away from the insulating layer 2, a reinforcing core 5 is arranged inside the filling layer 4, a protective tube 6 is arranged on the outside of the filling layer 4, a heat insulation layer 8 is arranged on the side of the protective tube 6 away from the filling layer 4, a flame retardant layer 9 is arranged on the side of the heat insulation layer 8 away from the protective tube 6, a corrosion-resistant layer 10 is arranged on the side of the flame retardant layer 9 away from the heat insulation layer 8, a wear-resistant layer 11 is arranged on the side of the corrosion-resistant layer 10 away from the flame retardant layer 9, a protective cover 12 is arranged on the outer surface of the wear-resistant layer 11, and a load-bearing conductor 13 is arranged inside the protective cover 12.

[0020] Specifically, the insulating layer 2 is made of high-density polyethylene material, and the shielding layer 3 is made of woven metal wire. The setting of the insulating layer 2 and the shielding layer 3 achieves a double-layer insulation effect, so that the cable is not easily broken down by high voltage electricity. The corrosion-resistant layer 10 is made of aluminum oxide material, and the wear-resistant layer 11 is made of polyvinyl chloride material. The setting of the corrosion-resistant layer 10 provides a certain corrosion resistance for the cable body. The setting of the wear-resistant layer 11 protects the cable and reduces the wear of the cable during installation.

[0021] Specifically, the filling layer 4 is composed of cotton-like flame-retardant cotton. Through the setting of the filling layer 4, while having a flame-retardant effect, it can also provide buffering protection when the cable is squeezed. The heat insulation layer 8 is made of alkali-free glass fiber material, and the flame-retardant layer 9 is composed of overlapping polyester tapes. Through the setting of the heat insulation layer 8 and the flame-retardant layer 9, high temperature can be prevented from causing combustion, so that the cable has strong fire resistance.

[0022] Specifically, reinforcing ribs 7 are fixedly connected between the protection tube 6 and the reinforcing core 5, and the number of the reinforcing ribs 7 is multiple. The arrangement of the reinforcing core 5 and the reinforcing ribs 7 can prevent the cable from being pulled and broken during installation. The protective cover 12 and the load-bearing conductor 13 are arranged in two groups and are arranged symmetrically on the left and right. Through the arrangement of the two load-bearing conductors 13, the dead weight of the cable is evenly distributed by the two load-bearing conductors 13, thereby avoiding the phenomenon of a single load-bearing conductor 13 being damaged due to excessive load.

[0023] During use: by setting two load-bearing conductors 13, the dead weight of the cable is evenly distributed by the two load-bearing conductors 13, thereby avoiding the phenomenon that a single load-bearing conductor 13 is damaged due to excessive load; by setting the insulating layer 2 and the shielding layer 3, a double-layer insulation effect is achieved, so that the cable is not easily punctured by high voltage electricity; by setting the filling layer 4, while achieving a flame retardant effect, it can also provide buffer protection when the cable is squeezed; by setting the reinforcing core 5 and the reinforcing ribs 7, the cable can be prevented from being pulled and broken during installation; by setting the heat insulating layer 8 and the flame retardant layer 9, high temperature can be prevented from causing combustion, so that the cable has strong fire resistance; by setting the corrosion-resistant layer 10, a certain corrosion resistance is provided to the cable body; by setting the wear-resistant layer 11, the cable is protected to reduce the wear of the cable during installation.

[0024] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0025] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A fireproof power cable, comprising a cable core (1), characterized in that: An insulating layer (2) is provided on the surface of the cable core (1); a shielding layer (3) is provided on the side of the insulating layer (2) away from the cable core (1); a filling layer (4) is provided on the side of the shielding layer (3) away from the insulating layer (2); a reinforcing core (5) is provided inside the filling layer (4); a protective tube (6) is provided on the outside of the filling layer (4); a heat insulation layer (8) is provided on the side of the protective tube (6) away from the filling layer (4); a flame retardant layer (9) is provided on the side of the heat insulation layer (8) away from the protective tube (6); a corrosion resistant layer (10) is provided on the side of the flame retardant layer (9) away from the heat insulation layer (8); a wear resistant layer (11) is provided on the side of the corrosion resistant layer (10) away from the flame retardant layer (9); a protective cover (12) is provided on the outer surface of the wear resistant layer (11); a load-bearing conductor (13) is provided inside the protective cover (12).

2. A fireproof power cable according to claim 1, characterized in that: The insulating layer (2) is made of high-density polyethylene material, and the shielding layer (3) is made of braided metal wires.

3. A fireproof power cable according to claim 1, characterized in that: The filling layer (4) is made of cotton-like flame-retardant cotton.

4. A fireproof power cable according to claim 1, characterized in that: Reinforcing ribs (7) are fixedly connected between the protection tube (6) and the reinforcing core (5), and the number of the reinforcing ribs (7) is multiple groups.

5. A fireproof power cable according to claim 1, characterized in that: The heat insulation layer (8) is made of alkali-free glass fiber material, and the flame retardant layer (9) is formed by overlapping and wrapping polyester tapes.

6. A fireproof power cable according to claim 1, characterized in that: The corrosion-resistant layer (10) is made of aluminum oxide material, and the wear-resistant layer (11) is made of polyvinyl chloride material.

7. A fireproof power cable according to claim 1, characterized in that: The protective sleeve (12) and the carrying conductor (13) are arranged in two groups and are arranged in a left-right symmetrical manner.

Images