Environment-friendly fireproof and waterproof cable
The design of multi-layer composite waterproof and fireproof layers and low-smoke halogen-free flame-retardant outer sheath improves the fire and waterproof performance of the cable, solves the safety problem of the cable in high temperature and water immersion environments, ensures that the cable line is unobstructed in the event of a fire and reduces the generation of smoke and harmful gases.
Patent Information
- Application Number
- CN202422318850.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-23
- Publication Date
- 2025-11-14
- Estimated Expiration
- 2034-09-23
AI Technical Summary
Existing cables have poor fire and water resistance, leading to fires and safety accidents, especially prone to short circuits and leakage under extreme weather conditions.
The cable employs a multi-layered composite waterproof and fireproof layer, including an aluminum-plastic composite tape, a ceramicized silicone rubber oxygen barrier layer, and a corrugated copper sheath, combined with a low-smoke, halogen-free, flame-retardant outer sheath, to enhance the cable's fire and waterproof performance.
It does not melt or drip in high-temperature environments, ensuring unobstructed cable lines, reducing the generation of smoke and harmful gases, and improving the fire resistance, water resistance, and safety of the cable.
Smart Images
Figure CN223552263U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of cable technology, and in particular to an environmentally friendly fireproof and waterproof cable. Background Technology
[0002] The main cause of cable fires is often the amplification of small defects within the cable during prolonged operation, leading to a gradual increase in internal temperature until it exceeds the upper limit of normal operating temperature, causing breakdown or short circuit and ultimately a fire. Therefore, areas where cables are laid are highly susceptible to fire, especially locations with a large volume of cables. Dense installations of electrical wires and cables are mainly concentrated in densely populated areas such as high-rise buildings, subways, large entertainment venues, and major national projects such as nuclear power plants, petrochemical plants, tunnels, airports, telecommunications systems, large industrial and mining enterprises, and underground engineering projects.
[0003] In response to continuous heavy rain and other extreme weather, many areas have experienced flooding. Due to the poor fire and water resistance of common cables, when cables are submerged in water, water can easily seep into the cable, damaging its internal structure. This often leads to short circuits and fires inside the cable, or even leakage causing extreme safety accidents such as injuries and fatalities. Utility Model Content
[0004] This application provides an environmentally friendly fireproof and waterproof cable to improve the following technical problems:
[0005] Common cables often suffer from poor fire and water resistance and insufficient safety.
[0006] This application provides an environmentally friendly fireproof and waterproof cable, which adopts the following technical solution:
[0007] An environmentally friendly fireproof and waterproof cable includes multiple core wires, a reinforcing tape layer, and a fiberglass filler rope. The reinforcing tape layer wraps around the multiple core wires, and the fiberglass filler rope fills the gaps inside the reinforcing tape layer except for the core wires. The outer periphery of the reinforcing tape layer is covered with a multi-layered composite waterproof and fireproof layer. The composite waterproof and fireproof layer is made of materials including aluminum, copper, plastic, and rubber. The outer periphery of the composite waterproof and fireproof layer is covered with a low-smoke, halogen-free, flame-retardant outer sheath.
[0008] In one feasible technical solution of this application, the composite waterproof and fireproof layer includes an aluminum-plastic composite tape and a corrugated copper sheath. The aluminum-plastic composite tape is co-extruded from aluminum and plastic materials, and the aluminum-plastic composite tape covers the outer peripheral wall of the reinforcing tape layer. The aluminum-plastic composite tape is located inside the corrugated copper sheath.
[0009] In one feasible technical solution of this application, the composite waterproof and fireproof layer further includes a ceramicized silicone rubber oxygen barrier layer, which is located between the aluminum-plastic composite strip and the corrugated copper sheath. The ceramicized silicone rubber oxygen barrier layer sintersects after combustion to form a ceramicized hard shell and does not melt or drip in an environment of 600-1300℃.
[0010] In one feasible technical solution of this application, the melting temperature of the corrugated copper sheath is not lower than 1083℃, and the thickness of the corrugated copper sheath is between 1-2 mm.
[0011] In one feasible technical solution of this application, the reinforcing layer of the wrapping tape is made of high flame-retardant glass fiber, and the thickness of the reinforcing layer of the wrapping tape is between 0.5 and 0.8 mm.
[0012] In one feasible technical solution of this application, the number of core wires is between 3 and 6, and multiple core wires are spirally wound together.
[0013] In one feasible technical solution of this application, the core wire includes a conductor, a mica tape, and an extruded insulation layer. The mica tape is wound around the outer peripheral wall of the conductor, and the extruded insulation layer is integrally co-extruded from cross-linked polyethylene material onto the outer peripheral wall of the mica tape.
[0014] In one feasible technical solution of this application, the thickness of the extruded insulating layer is between 2 and 4 mm, and the diameter of the conductor is not less than 3 mm.
[0015] In summary, this application includes at least one of the following beneficial technical effects:
[0016] The cable's insulation performance is improved by using an extruded insulation layer formed from mica tape and extruded cross-linked polyethylene. Then, the cable's waterproof performance is enhanced by adding an aluminum-plastic composite tape. Furthermore, the flame-retardant and fire-resistant performance is further improved by adding a ceramicized silicone rubber oxygen barrier layer and a corrugated copper sheath. The ceramicized silicone rubber oxygen barrier layer has good flexibility and bendability; after combustion, it sinters into a ceramicized hard shell that does not melt or drip in a fire environment (600–1300℃) and also possesses a certain degree of hardness. Simultaneously, the corrugated copper sheath can withstand temperatures up to 1083℃ without melting and can withstand certain impacts, effectively ensuring the cable's continuity in the event of a fire. The corrugated copper sheath also provides a certain degree of waterproofing. Finally, the addition of a low-smoke, halogen-free, flame-retardant outer sheath ensures that the generation of smoke and harmful gases is reduced in the event of a fire, while also increasing flame-retardant performance. This application's environmentally friendly fireproof and waterproof cable offers better fireproof and waterproof performance and superior safety. Attached Figure Description
[0017] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0018] Figure 1 This is a structural schematic diagram of an environmentally friendly fireproof and waterproof cable according to an embodiment of this application.
[0019] Explanation of reference numerals in the attached figures:
[0020] 1. Core wire; 11. Conductor; 12. Mica tape; 13. Extruded insulation layer;
[0021] 2. Reinforcing layer with wrapping tape;
[0022] 3. Fiberglass-filled rope;
[0023] 4. Composite waterproof and fireproof layer; 41. Aluminum-plastic composite strip; 42. Ceramicized silicone rubber oxygen barrier layer; 43. Corrugated copper sheath;
[0024] 5. Low-smoke, halogen-free, flame-retardant outer sheath. Detailed Implementation
[0025] To make the technical problems, technical solutions, and beneficial effects to be solved by this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and are not intended to limit the scope of this application.
[0026] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly on that other component. When a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to that other component.
[0027] It should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.
[0028] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.
[0029] The following is in conjunction with the appendix Figure 1 This application will be described in further detail.
[0030] This application discloses an environmentally friendly fireproof and waterproof cable. (Refer to...) Figure 1 An environmentally friendly fireproof and waterproof cable includes a multi-strand core wire 1, a reinforcing tape layer 2, and a fiberglass filling rope 3. The reinforcing tape layer 2 wraps the multi-strand core wire 1, and the fiberglass filling rope 3 fills the gaps inside the reinforcing tape layer 2 except for the core wire 1. The outer periphery of the reinforcing tape layer 2 is covered with a multi-layer composite waterproof and fireproof layer 4. The composite waterproof and fireproof layer 4 is made of various materials including aluminum, copper, plastic, and rubber. The outer periphery of the composite waterproof and fireproof layer 4 is covered with a low-smoke halogen-free flame-retardant outer sheath 5.
[0031] In this embodiment, the composite waterproof and fireproof layer 4 includes an aluminum-plastic composite strip 41 and a corrugated copper sheath 43. The aluminum-plastic composite strip 41 is co-extruded from aluminum and plastic materials and covers the outer peripheral wall of the reinforcing strip 2. The aluminum-plastic composite strip 41 is located inside the corrugated copper sheath 43. The composite waterproof and fireproof layer 4 also includes a ceramicized silicone rubber oxygen barrier layer 42, which is located between the aluminum-plastic composite strip 41 and the corrugated copper sheath 43. The ceramicized silicone rubber oxygen barrier layer 42 sintersects after combustion to form a ceramicized hard shell and does not melt or drip in an environment of 600-1300°C.
[0032] Specifically, the melting temperature of the corrugated copper sheath 43 is not lower than 1083℃, and the thickness of the corrugated copper sheath 43 is between 1 and 2 mm.
[0033] In this embodiment, the reinforcing layer 2 is made of high flame-retardant glass fiber, and the thickness of the reinforcing layer 2 is between 0.5 and 0.8 mm. The number of core wires 1 is between 3 and 6 (preferably 3), and multiple core wires 1 are spirally wound together.
[0034] In this embodiment, the core wire 1 includes a conductor 11, a mica tape 12, and an extruded insulation layer 13. The mica tape 12 is wound around the outer peripheral wall of the conductor 11, and the extruded insulation layer 13 is integrally co-extruded from cross-linked polyethylene material onto the outer peripheral wall of the mica tape 12. The thickness of the extruded insulation layer 13 is between 2 and 4 mm, and the diameter of the conductor 11 is not less than 3 mm.
[0035] The beneficial technical effects of an environmentally friendly fireproof and waterproof cable according to an embodiment of this application are roughly as follows:
[0036] The insulation performance of the cable is improved by using mica tape 12 and extruded cross-linked polyethylene to form an extruded insulation layer 13. Then, the waterproof performance of the cable is improved by setting aluminum-plastic composite tape 41. The flame retardant and fire-resistant performance of the cable is further improved by setting ceramicized silicone rubber oxygen barrier layer 42 and corrugated copper sheath. Moreover, ceramicized silicone rubber oxygen barrier layer 42 has good soft bending performance. After combustion, it sinters to form a ceramicized hard shell that does not melt or drip in a fire environment (600-1300℃) and also has a certain degree of hardness. At the same time, the corrugated copper sheath can withstand a temperature of 1083℃ without melting and can withstand a certain impact, thus effectively ensuring the continuity of the cable line in the event of a fire. The corrugated copper sheath also has a certain degree of waterproof effect. Finally, the low-smoke halogen-free flame-retardant outer sheath 5 is set to ensure that the generation of smoke and harmful gases is reduced when the cable is in fire, and the flame retardant performance is increased. The environmentally friendly fireproof and waterproof cable of this application has better fireproof and waterproof performance and better safety.
[0037] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.
Claims
1. An environmentally friendly fireproof and waterproof cable, characterized in that, It includes a multi-strand core wire (1), a wrapping reinforcement layer (2), and a glass fiber filling rope (3). The wrapping reinforcement layer (2) wraps the multi-strand core wire (1), and the glass fiber filling rope (3) fills the gaps inside the wrapping reinforcement layer (2) except for the core wire (1). The outer periphery of the wrapping reinforcement layer (2) is covered with a multi-layer composite waterproof and fireproof layer (4). The composite waterproof and fireproof layer (4) is made of various materials including aluminum, copper, plastic, and rubber. The outer periphery of the composite waterproof and fireproof layer (4) is covered with a low-smoke halogen-free flame-retardant outer sheath (5).
2. The environmentally friendly fireproof and waterproof cable according to claim 1, characterized in that, The composite waterproof and fireproof layer (4) includes an aluminum-plastic composite tape (41) and a corrugated copper sheath (43). The aluminum-plastic composite tape (41) is made of aluminum and plastic materials through co-extrusion. The aluminum-plastic composite tape (41) covers the outer peripheral wall of the reinforcing tape layer (2) and is located inside the corrugated copper sheath (43).
3. The environmentally friendly fireproof and waterproof cable according to claim 2, characterized in that, The composite waterproof and fireproof layer (4) also includes a ceramicized silicone rubber oxygen barrier layer (42), which is located between the aluminum-plastic composite strip (41) and the corrugated copper sheath (43). The ceramicized silicone rubber oxygen barrier layer (42) sintersects after combustion to form a ceramicized hard shell and does not melt or drip in an environment of 600-1300℃.
4. The environmentally friendly fireproof and waterproof cable according to claim 2, characterized in that, The melting temperature of the wrinkled copper sheath (43) is not lower than 1083°C, and the thickness of the wrinkled copper sheath (43) is between 1 and 2 mm.
5. The environmentally friendly fireproof and waterproof cable according to claim 1, characterized in that, The reinforcing layer (2) is made of high flame-retardant glass fiber, and the thickness of the reinforcing layer (2) is between 0.5 and 0.8 mm.
6. The environmentally friendly fireproof and waterproof cable according to claim 1, characterized in that, The number of core wires (1) is between 3 and 6, and multiple core wires (1) are spirally wound together.
7. The environmentally friendly fireproof and waterproof cable according to claim 6, characterized in that, The core wire (1) includes a conductor (11), a mica tape (12) and an extruded insulation layer (13). The mica tape (12) is wound around the outer peripheral wall of the conductor (11), and the extruded insulation layer (13) is integrally co-extruded from cross-linked polyethylene material onto the outer peripheral wall of the mica tape (12).
8. The environmentally friendly fireproof and waterproof cable according to claim 7, characterized in that, The thickness of the extruded insulation layer (13) is between 2 and 4 mm, and the diameter of the conductor (11) is not less than 3 mm.