Energy-saving environment-friendly high-flame-retardant fireproof medium-voltage cable
By adopting multi-layer structural designs such as flame retardant layer, fire retardant layer, fire retardant layer and inner support layer in medium voltage cables, combined with the distribution of galvanized steel wire and armored steel wire, the problem of fire prone to fire in failure is solved, and efficient flame retardant protection and normal operation of the cable in high-temperature environments are achieved.
Patent Information
- Application Number
- CN202420499948.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-14
- Publication Date
- 2025-03-18
- Estimated Expiration
- 2034-03-14
AI Technical Summary
Existing medium-voltage cables are prone to fire when they fail and are not easily flame retardant, resulting in an increase in combustion area and economic losses.
The medium-voltage cable design is adopted, including battery conductors, fire-resistant layers, fire-resistant layers, inner support layers and flame-retardant layers. The flame-retardant layer uses flame-retardant polyolefin material, the fire-retardant layer uses flame-retardant polyethylene material, and the fire-retardant layer uses silicone rubber. The galvanized steel wire is distributed in the inner support layer and armored steel wire is distributed in the compressive layer to improve the flame-retardant performance and strength of the cable.
When a fire occurs, slows the spread of fire, reduces the production of smoke and harmful gases, provides additional protection time, prevents the fire from spreading into the cable, protects the cable core from the impact of high temperatures and fires, ensures that the cable continues to work normally in high temperature environments, and improves the overall strength and protection capabilities of the cable.
Smart Images
Figure CN222636914U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of electric wires and cables, and in particular to an energy-saving, environmentally friendly, highly flame-retardant and fire-resistant medium-voltage cable. Background Art
[0002] With the continuous expansion of China's power industry, data communication industry, urban rail transit industry, automobile industry and shipbuilding industry, the demand for wires and cables will also grow rapidly, and the wire and cable industry has huge development potential in the future. At the same time, with the continuous development of social economy and the improvement of people's living standards, many high-rise buildings, large shopping malls, subways, exhibition halls and stadiums are increasing, and the importance of fire prevention in important places is also being paid more attention. The power supply safety of important facilities is becoming more and more important.
[0003] In the prior art, medium-voltage cables are prone to fire due to faults during use, and are not flame retardant, which leads to an increase in the burning area, so that the cables cannot be used normally, ultimately causing serious economic losses. Utility Model Content
[0004] The utility model mainly provides an energy-saving, environmentally friendly, highly flame-retardant and fire-resistant medium-voltage cable with efficient flame-retardant protection.
[0005] In order to achieve the above-mentioned objectives, the utility model adopts the following technical scheme: an energy-saving, environmentally friendly, highly flame-retardant and fire-resistant medium-voltage cable, comprising: a medium-voltage cable body, the medium-voltage cable body comprising a core conductor, the outer wall of the core conductor is connected to a fire-resistant layer, the outer wall of the fire-resistant layer is connected to a fireproof layer, the outer wall of the fireproof layer is connected to an inner supporting layer, and the outer wall of the inner supporting layer is connected to a flame-retardant layer.
[0006] Preferably, a plurality of galvanized steel wires are evenly distributed inside the side wall of the inner support layer, a pressure-resistant layer is arranged on the outer wall of the flame-retardant layer, and a plurality of armored steel wires are evenly distributed inside the side wall of the pressure-resistant layer. The inner support layer cooperates with the distribution of the galvanized steel wires, wherein the galvanized steel wires are made of galvanized material, which is beneficial to improving the strength of the cable while ensuring that it can have a certain degree of bending, facilitating the laying work, and the overall strength of the cable can be further increased by the pressure-resistant layer and the armored steel wires. The armored steel wires are used to enhance the tension and external force resistance of the cable, as well as to protect the cable from animal gnawing and mechanical damage, effectively prevent high-intensity extrusion, effectively prevent breakage, and provide protection for the cable.
[0007] Preferably, an outer sheath is provided on the outer wall of the pressure-resistant layer, the thickness of the outer sheath is 1.5 mm to 3 mm, and the outer sheath is made of polyester material, which has good wear resistance and weather resistance and is suitable for cable applications in some special environments.
[0008] Preferably, the thickness of the pressure-resistant layer is 0.2 mm to 0.6 mm, the diameter of the armored steel wire is 0.1 mm to 0.18 mm, and the pressure-resistant layer is made of polyvinyl chloride, which can prevent bending and breaking and improve strength.
[0009] Preferably, the thickness of the flame retardant layer is 0.2mm to 0.5mm, the thickness of the fireproof layer is 0.6mm to 1mm, and the thickness of the fire-resistant layer is 0.3mm to 0.5mm. The flame retardant layer is made of flame-retardant polyolefin material. When a fire occurs, it slows down the spread of fire, reduces the generation of smoke and harmful gases, and provides additional protection time. The fireproof layer is made of flame-retardant polyethylene material to prevent the fire from spreading to the inside of the cable and protect the cable core from high temperature and fire. The fire-resistant layer is made of silicone rubber, which is conducive to providing a higher level of protection when a fire occurs to ensure that the cable continues to work normally in a high temperature environment.
[0010] Preferably, the thickness of the inner support layer is 0.2 mm to 0.4 mm, the diameter of the galvanized steel wire is 0.1 mm to 0.15 mm, and the inner support layer is made of glass fiber material, which has high strength and high rigidity, and can increase the internal support capacity of the cable.
[0011] Compared with the prior art, the advantages and positive effects of the utility model are:
[0012] 1. In the utility model, the flame retardant layer uses flame retardant polyolefin material, which can slow down the spread of fire, reduce the generation of smoke and harmful gases, and provide additional protection time when a fire occurs. The fireproof layer uses flame retardant polyethylene material to prevent the fire from spreading to the inside of the cable and protect the cable core from high temperature and fire. The fire-resistant layer uses silicone rubber, which is conducive to providing a higher level of protection when a fire occurs, so as to ensure that the cable continues to work normally in a high temperature environment.
[0013] 2. In the utility model, the inner support layer is coordinated with the distribution of galvanized steel wire, wherein the galvanized steel wire is made of galvanized material, which is beneficial to improving the strength of the cable, while ensuring that it can have a certain degree of bending, which facilitates the laying work. The overall strength of the cable can be further increased by the compression layer and the armored steel wire. The armored steel wire is used to enhance the tension and resistance of the cable to external forces, as well as to protect the cable from animal bites and mechanical damage, effectively prevent high-strength extrusion, effectively prevent breakage, and provide protection for the cable. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 A stereoscopic diagram of an energy-saving, environmentally friendly, highly flame-retardant and fire-resistant medium-voltage cable is proposed for the utility model;
[0015] Figure 2 Another structural schematic diagram of an energy-saving, environmentally friendly, highly flame-retardant and fire-resistant medium-voltage cable proposed for the utility model;
[0016] Figure 3 The utility model provides a schematic diagram of the cross-sectional structure of an end of an energy-saving, environmentally friendly, highly flame-retardant and fire-resistant medium-voltage cable.
[0017] Legend: 1. Medium voltage cable body; 101. Outer sheath; 102. Compression-resistant layer; 103. Armored steel wire; 104. Flame-retardant layer; 105. Inner supporting layer; 106. Galvanized steel wire; 107. Fireproof layer; 108. Fire-resistant layer; 109. Core conductor. DETAILED DESCRIPTION
[0018] In order to more clearly understand the above-mentioned purpose, features and advantages of the utility model, the utility model is further described below in conjunction with the accompanying drawings and embodiments. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.
[0019] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways than those described herein. Therefore, the present invention is not limited to the specific embodiments of the following disclosure.
[0020] See also Figure 1-Figure 3 The utility model provides a technical solution: an energy-saving, environmentally friendly, highly flame-retardant and fire-resistant medium-voltage cable, comprising: a medium-voltage cable body 1, the medium-voltage cable body 1 comprises a core conductor 109, the outer wall of the core conductor 109 is connected to a fire-resistant layer 108, the outer wall of the fire-resistant layer 108 is connected to a fireproof layer 107, the outer wall of the fireproof layer 107 is connected to an inner supporting layer 105, and the outer wall of the inner supporting layer 105 is connected to a flame-retardant layer 104.
[0021] like Figure 1-Figure 3 As shown, a plurality of galvanized steel wires 106 are evenly distributed inside the side wall of the inner support layer 105, a pressure-resistant layer 102 is arranged on the outer wall of the flame-retardant layer 104, a plurality of armored steel wires 103 are evenly distributed inside the side wall of the pressure-resistant layer 102, and the inner support layer 105 cooperates with the distribution of the galvanized steel wires 106, wherein the galvanized steel wires 106 are made of galvanized material, which is beneficial to improving the strength of the cable, while ensuring that it can have a certain degree of bending, facilitating the laying work, and the overall strength of the cable can be further increased by the pressure-resistant layer 102 and the armored steel wires 103, and the armored steel wires 103 are used to enhance the tension and external force resistance of the cable, as well as to protect the cable from animal gnawing and mechanical damage, effectively prevent high-intensity extrusion, effectively prevent breakage, and provide protection for the cable.
[0022] like Figure 1-Figure 3 As shown, an outer sheath 101 is disposed on the outer wall of the pressure-resistant layer 102 . The thickness of the outer sheath 101 is 1.5 mm to 3 mm. The outer sheath 101 is made of polyester material and has good wear resistance and weather resistance, and is suitable for cable applications in some special environments.
[0023] like Figure 1-Figure 3 As shown, the thickness of the pressure-resistant layer 102 is 0.2 mm to 0.6 mm, the diameter of the armored steel wire 103 is 0.1 mm to 0.18 mm, and the pressure-resistant layer 102 is made of polyvinyl chloride, which can prevent bending and breaking and improve strength.
[0024] like Figure 1-Figure 3 As shown, the thickness of the flame retardant layer 104 is 0.2mm to 0.5mm, the thickness of the fireproof layer 107 is 0.6mm to 1mm, and the thickness of the fire-resistant layer 108 is 0.3mm to 0.5mm. The flame retardant layer 104 is made of flame retardant polyolefin material. When a fire occurs, it slows down the spread of fire, reduces the generation of smoke and harmful gases, and provides additional protection time. The fireproof layer 107 is made of flame retardant polyethylene material to prevent the fire from spreading to the inside of the cable and protect the cable core from high temperature and fire. The fire-resistant layer 108 is made of silicone rubber, which is conducive to providing a higher level of protection when a fire occurs to ensure that the cable continues to work normally in a high temperature environment.
[0025] like Figure 1-Figure 3 As shown, the thickness of the inner support layer 105 is 0.2 mm to 0.4 mm, the diameter of the galvanized steel wire 106 is 0.1 mm to 0.15 mm, and the inner support layer 105 is made of glass fiber, which has high strength and high rigidity, and can increase the internal support capacity of the cable.
[0026] The use method and working principle of this device: the core conductor 109 can connect electricity to achieve the conductive effect. The outer sheath 101 is made of polyester material, which has good wear resistance and weather resistance, and is suitable for cable applications in some special environments. The overall strength of the cable can be further increased by the compression layer 102 and the armored steel wire 103. The armored steel wire 103 is used to enhance the tension and resistance of the cable to external forces, as well as to protect the cable from animal gnawing and mechanical damage, effectively prevent high-intensity extrusion, effectively prevent breakage, and provide protection for the cable. The inner support layer 105 is made of glass fiber material, which has high strength and high rigidity, and can increase the internal support capacity of the cable. The flame retardant layer 104 is made of flame retardant polyolefin material. When a fire occurs, it slows down the spread of fire, reduces the generation of smoke and harmful gases, and provides additional protection time. The fireproof layer 107 is made of flame retardant polyethylene material to prevent the fire from spreading to the inside of the cable and protect the cable core from high temperature and fire. The fire-resistant layer 108 is made of silicone rubber, which is conducive to providing a higher level of protection when a fire occurs to ensure that the cable continues to work normally in a high temperature environment.
[0027] The above description is only a preferred embodiment of the present invention and does not limit the present invention in other forms. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes and apply it to other fields. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still falls within the protection scope of the technical solution of the present invention.
Claims
1. An energy-saving, environmentally friendly, highly flame-retardant and fire-resistant medium-voltage cable, characterized in that: include: A medium voltage cable body (1), the medium voltage cable body (1) comprising a core conductor (109), the outer wall of the core conductor (109) being connected to a fireproof layer (108), the outer wall of the fireproof layer (108) being connected to a fireproof layer (107), the outer wall of the fireproof layer (107) being connected to an inner support layer (105), and the outer wall of the inner support layer (105) being connected to a flame retardant layer (104); A plurality of galvanized steel wires (106) are evenly distributed inside the side wall of the inner support layer (105); a pressure-resistant layer (102) is arranged on the outer wall of the flame-retardant layer (104); and a plurality of armored steel wires (103) are evenly distributed inside the side wall of the pressure-resistant layer (102); An outer sheath (101) is provided on the outer wall of the pressure-resistant layer (102), and the thickness of the outer sheath (101) is 1.5 mm to 3 mm; The thickness of the compression-resistant layer (102) is 0.2 mm to 0.6 mm, and the diameter of the armored steel wire (103) is 0.1 mm to 0.18 mm; The thickness of the flame retardant layer (104) is 0.2 mm to 0.5 mm, the thickness of the fireproof layer (107) is 0.6 mm to 1 mm, and the thickness of the fireproof layer (108) is 0.3 mm to 0.5 mm; The thickness of the inner support layer (105) is 0.2 mm to 0.4 mm, and the diameter of the galvanized steel wire (106) is 0.1 mm to 0.15 mm.