Low-smoke halogen-free flame-retardant low-voltage cable

Abstract

The utility model discloses a low smoke halogen -free flame -retardant low -voltage cable relates to cable flame -retardant technical field, including flame -retardant cable wire insulation cover, cable storehouse, cable and conductor, the outer surface installation flame -retardant cable wire insulation cover of cable adopts low smoke halogen -free flame -retardant material such as crosslinked polyethylene, it has good insulating property and flame -retardant performance, can effectively prevent current leakage and short circuit, and reduce the generation of smoke and toxic gas when burning, three -point formula separation baffle will the inner portion of flame -retardant cable wire insulation cover into three parts, formed cable storehouse, to store and protect cable, cable cover is in the outer surface of oxygen -resistant layer, and oxygen -resistant layer adopts inorganic metal compound material, when cable combustion, oxygen -resistant layer is heated and is decomposed, releases crystallization water and other substances, absorbs a large amount of heat energy, thereby reducing the temperature of outer layer combustible and surrounding environment, makes the cable that ignites self -extinguish, and the conductor cover adopts the insulating material and is made to protect the conductor.

Description

Technical Field

[0001] This utility model relates to the field of flame retardant cable technology, specifically a low-smoke, halogen-free flame retardant low-voltage cable. Background Technology

[0002] Cables are electrical energy or signal transmission devices, typically composed of several or groups of conductors. With societal development, people have increasingly higher requirements for the safety and environmental friendliness of cables. However, most cables currently have low flame retardant properties, failing to effectively prevent the spread of flames and producing large amounts of dense smoke and toxic gases, causing serious environmental pollution and posing a significant threat to human life. Therefore, those skilled in the art have provided a low-smoke, halogen-free, flame-retardant low-voltage cable to address the problems mentioned in the background section. Utility Model Content

[0003] The purpose of this invention is to provide a low-smoke, halogen-free, flame-retardant low-voltage cable to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution:

[0005] A low-smoke, halogen-free, flame-retardant low-voltage cable includes a flame-retardant cable insulation sleeve, a cable compartment, a cable, and a conductor. A three-point separation partition is fixedly connected at three points on the inner wall surface of the flame-retardant cable insulation sleeve. A cable compartment is provided inside the flame-retardant cable insulation sleeve and on the outer wall surface of the three-point separation partition. A cable is movably connected to the inner wall surface of the cable compartment. An oxygen barrier layer is movably connected to the inner wall surface of the cable. A conductor sleeve is fixedly connected to the inner wall surface of the oxygen barrier layer. A conductor is movably connected to the inner wall surface of the conductor sleeve. The cable, oxygen barrier layer, conductor sleeve, and conductor are all in sets of three.

[0006] As a further embodiment of this utility model: the internal interlayer of the flame-retardant cable insulation sleeve is wound and fixedly connected with a flame-retardant iron grid.

[0007] As a further improvement of this utility model: the inner interlayer of the cable is wrapped with a cable tensioning strap, and the number of cable tensioning straps is three.

[0008] As a further improvement of this utility model: the interior of the cable compartment and the outer surface of the cable are both filled with adhesive flame-retardant filling cotton, and the number of flame-retardant filling cotton is three.

[0009] As a further improvement of this utility model, the outer surface of the flame-retardant cable insulation sleeve is covered with a high-temperature resistant coating.

[0010] As a further improvement of this invention, the outer surface of the high-temperature resistant coating is covered with an anti-corrosion coating.

[0011] As a further improvement of this invention, the outer surface of the anti-corrosion coating is covered with an anti-abrasion coating.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] 1. The flame-retardant cable insulation sheath uses low-smoke halogen-free flame-retardant materials such as cross-linked polyethylene, improving the cable's safety and reliability, reducing casualties and property losses in fire accidents, minimizing the impact on the environment and human health, effectively preventing the spread of flames, and avoiding the generation of large amounts of dense smoke and toxic gases; the oxygen barrier layer uses materials such as inorganic metal compounds, effectively improving the cable's flame-retardant performance and reducing the occurrence of fire accidents; in the event of a fire, it can buy time for personnel evacuation and firefighting work, reducing serious environmental pollution and threats to personnel safety; the conductor sheath is made of insulating materials, protecting the conductor, increasing the conductor's service life, enhancing the cable's insulation performance, and preventing leakage accidents.

[0014] 2. A high-temperature resistant coating, an anti-corrosion coating, and an anti-abrasion coating are sequentially applied to the outer surface of the flame-retardant cable insulation sheath to improve the cable's high-temperature resistance, protect the cable from corrosion and abrasion, extend the cable's service life, improve its safety and reliability, and reduce cable failures caused by corrosion.

[0015] 3. The flame-retardant filling cotton is made of halogen-free flame-retardant material and fills the gaps inside the cable compartment to improve the insulation and flame-retardant properties of the cable and reduce the occurrence of fire accidents; at the same time, it plays a buffering role and protects the conductors and insulation layers inside the cable. Attached Figure Description

[0016] Figure 1 This is a structural schematic diagram of a low-smoke, halogen-free, flame-retardant low-voltage cable.

[0017] Figure 2 This is a schematic diagram of the structure of the flame-retardant cable insulation sleeve in a low-smoke halogen-free flame-retardant low-voltage cable.

[0018] Figure 3 This is a schematic diagram of the structure of the insulated cable in a low-smoke, halogen-free, flame-retardant low-voltage cable.

[0019] Figure 4 This is a planar schematic diagram of the insulation material in a low-smoke, halogen-free, flame-retardant low-voltage cable.

[0020] In the diagram: 1-Flame-retardant cable insulation sleeve, 2-Three-point separation partition, 3-Cable compartment, 4-Cable, 5-Oxygen barrier layer, 6-Conductor sleeve, 7-Conductor, 8-Flame-retardant iron grid, 9-Cable tensioning strap, 10-Flame-retardant filling cotton, 11-High temperature resistant coating, 12-Anti-corrosion coating, 13-Anti-abrasion coating. Detailed Implementation

[0021] Please see Figures 1-4 In this embodiment of the utility model, a low-smoke halogen-free flame-retardant low-voltage cable includes a flame-retardant cable insulation sleeve 1, a three-point separation partition 2, a cable compartment 3, a cable 4, an oxygen barrier layer 5, a conductor sleeve 6, a conductor 7, a flame-retardant iron grid 8, a cable tensioning strap 9, flame-retardant filling cotton 10, a high-temperature resistant coating 11, an anti-corrosion coating 12, and an anti-abrasion coating 13. The three-point separation partition 2 is fixedly connected at three points on the inner wall surface of the flame-retardant cable insulation sleeve 1. A cable compartment 3 is provided inside the flame-retardant cable insulation sleeve 1 and on the outer wall surface of the three-point separation partition 2. The cable 4 is movably connected to the inner wall surface of the cable compartment 3. The oxygen barrier layer 5 is movably connected to the inner wall surface of the cable 4. The conductor sleeve 6 is fixedly connected to the inner wall surface of the oxygen barrier layer 5. The inner wall surface of cable 6 is connected to conductor 7, and there are three of each of cable 4, oxygen barrier layer 5, conductor sleeve 6 and conductor 7. The inner interlayer of the flame-retardant cable insulation sleeve 1 is wrapped and fixedly connected to flame-retardant iron grid 8. The inner interlayer of cable 4 is wrapped and fixedly connected to cable tensioning strap 9, and there are three cable tensioning straps 9. The inside of the cable compartment 3 and the outer surface of cable 4 are filled with flame-retardant filling cotton 10, and there are three flame-retardant filling cotton 10. The outer wall surface of the flame-retardant cable insulation sleeve 1 is covered with a high-temperature resistant coating 11. The outer wall surface of the high-temperature resistant coating 11 is covered with an anti-corrosion coating 12. The outer wall surface of the anti-corrosion coating 12 is covered with an anti-abrasion coating 13.

[0022] The working principle of this utility model is as follows: In use, firstly, a flame-retardant cable insulation sleeve 1 is installed on the outer surface of the cable 4. This sleeve is made of low-smoke, halogen-free flame-retardant materials such as cross-linked polyethylene, which has excellent insulation and flame-retardant properties, effectively preventing current leakage and short circuits, and reducing the generation of smoke and toxic gases during combustion. A three-point separation partition 3 divides the interior of the flame-retardant cable insulation sleeve 1 into three parts, forming a cable compartment 3, used to store and protect the cable 4. The cable 4 is then fitted onto the outer surface of an oxygen barrier layer 5, which is made of an inorganic metal compound. When cable 4 burns, the oxygen barrier layer 5 decomposes upon heating, releasing substances such as water of crystallization, which absorbs a large amount of heat energy, thereby reducing the temperature of the outer combustible material and the surrounding environment, causing the burning cable 4 to extinguish itself. The conductor sleeve 6 is made of insulating material to protect the conductor 7, preventing corrosion or leakage caused by contact with the external environment. The conductor 7 is made of metal materials such as copper and aluminum, which have good conductivity and can transmit electrical energy from the power source to the electrical equipment. The flame-retardant iron mesh 8 of the flame-retardant cable insulation sleeve 1 is made of metal material. The cable 4 is reinforced with a high-temperature resistant and flame-retardant coating, which enhances its mechanical strength and flame-retardant properties. The cable tensioning strap 9 is used to secure the cable 4, preventing leakage or short circuits due to loosening during use. It also helps improve the cable 4's mechanical strength and flame-retardant properties. The flame-retardant filling cotton 10, made of halogen-free flame-retardant material, fills the gaps inside the cable compartment 3, providing insulation, flame retardancy, and cushioning for the cable 4. A high-temperature resistant coating 11, an anti-corrosion coating 12, and an anti-abrasion coating 13 are sequentially applied to the flame-retardant cable insulation sleeve. The outer surface of cable 4 is covered by a high-temperature resistant coating 11, which enables the flame-retardant cable insulation sleeve to remain stable in high-temperature environments, preventing the cable 4 from deforming or being damaged due to high temperatures. It also helps to improve the flame-retardant performance of the cable 4. The anti-corrosion coating 12 prevents the flame-retardant cable insulation sleeve 1 from corroding due to contact with corrosive substances such as acids and alkalis. The anti-abrasion coating 13 prevents the cable 4 from being worn due to friction with other objects during use. The high-temperature resistant coating 11, the anti-corrosion coating 12, and the anti-abrasion coating 13 work together to extend the service life of the cable 4.

[0023] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A low-smoke, halogen-free, flame-retardant low-voltage cable, comprising a flame-retardant cable insulation sheath (1), a cable housing (3), a cable (4), and a conductor (7), characterized in that, The flame-retardant cable insulation sleeve (1) has a three-point separation partition (2) fixedly connected at three points on the inner wall surface. The inside of the flame-retardant cable insulation sleeve (1) and the outer wall surface of the three-point separation partition (2) are provided with a cable compartment (3). The inner wall surface of the cable compartment (3) is movably connected to a cable (4). The inner wall surface of the cable (4) is movably connected to an oxygen barrier layer (5). The inner wall surface of the oxygen barrier layer (5) is fixedly connected to a conductor sleeve (6). The inner wall surface of the conductor sleeve (6) is movably connected to a conductor (7). The number of cables (4), oxygen barrier layer (5), conductor sleeve (6) and conductor (7) are all three.

2. The low-smoke halogen-free flame-retardant low-voltage cable according to claim 1, characterized in that, The flame-retardant cable insulation sleeve (1) has an internal interlayer that is wrapped with and fixedly connected to a flame-retardant iron grid (8).

3. The low-smoke halogen-free flame-retardant low-voltage cable according to claim 1, characterized in that, The inner interlayer of the cable (4) is wrapped with a cable tensioning strap (9) for fixing, and the number of cable tensioning straps (9) is three.

4. The low-smoke halogen-free flame-retardant low-voltage cable according to claim 1, characterized in that, The inside of the cable compartment (3) and the outer surface of the cable (4) are both filled with adhesive flame-retardant filling cotton (10), and the number of flame-retardant filling cotton (10) is three.

5. The low-smoke halogen-free flame-retardant low-voltage cable according to claim 1, characterized in that, The outer surface of the flame-retardant cable insulation sleeve (1) is covered with a high-temperature resistant coating (11).

6. The low-smoke halogen-free flame-retardant low-voltage cable according to claim 5, characterized in that, The outer surface of the high-temperature resistant coating (11) is covered with an anti-corrosion coating (12).

7. A low-smoke halogen-free flame-retardant low-voltage cable according to claim 6, characterized in that, The outer surface of the anti-corrosion coating (12) is covered with an anti-abrasion coating (13).

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