CN219610094U - High flame-retardant halogen-free cable - Google Patents
High flame-retardant halogen-free cable Download PDFInfo
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- CN219610094U CN219610094U CN202320244336.7U CN202320244336U CN219610094U CN 219610094 U CN219610094 U CN 219610094U CN 202320244336 U CN202320244336 U CN 202320244336U CN 219610094 U CN219610094 U CN 219610094U
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- free cable
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/14—Extreme weather resilient electric power supply systems, e.g. strengthening power lines or underground power cables
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Abstract
The utility model discloses a high-flame-retardance halogen-free cable, which comprises a flame-retardance outer sheath, wherein a steel-plastic composite belt is fixedly arranged in the flame-retardance outer sheath, a heat insulation inner sheath is fixedly arranged in the steel-plastic composite belt, a plurality of wire cores are arranged in an annular array in the heat insulation inner sheath, insulating layers are respectively coated on the outer edge surfaces of the plurality of wire cores, a flame-retardance filling material for achieving a flame-retardance effect is filled in the heat insulation inner sheath, a cavity groove is formed in the flame-retardance filling material in the middle, an anti-deformation steel core is arranged in the cavity groove in the middle, a plurality of compression-resistant steel belts are fixedly bonded on the inner edge surface of the flame-retardance outer sheath in an annular array, and a plurality of grooves are formed in the outer edge surface of the steel-plastic composite belt in an annular array. The high-flame-retardance halogen-free cable has a strong flame-retardant effect, can effectively inhibit the spreading speed of fire on the halogen-free cable, achieves the standards of high flame retardance and high environmental protection, and also has a high protective effect and strong practicability.
Description
Technical Field
The utility model belongs to the technical field of halogen-free cables, and particularly relates to a high-flame-retardance halogen-free cable.
Background
The low-smoke halogen-free cable is prepared from a sizing material which does not contain halogen (F, cl, br, I, at), lead, cadmium, chromium, mercury and other environmental substances, and does not emit toxic smoke during combustion.
The existing halogen-free cable mainly comprises a wire core, an insulating layer and a protective layer, wherein the protective layer prepared from a sizing material containing no environmental substances such as lead, cadmium, chromium and mercury is not easy to generate toxic smoke after burning, and can not effectively inhibit the spreading speed of fire on the halogen-free cable due to poor flame retardant effect, so that the standard requirements of high flame retardance and high environmental protection are not met.
Disclosure of Invention
The utility model aims to provide a high-flame-retardance halogen-free cable so as to solve the problems in the background technology.
In order to achieve the above purpose, the present utility model provides the following technical solutions:
a high flame-retardant halogen-free cable comprises a flame-retardant outer sheath;
the flame-retardant outer sheath is internally fixed with a steel-plastic composite belt, the steel-plastic composite belt is internally fixed with a heat-insulating inner sheath, a plurality of wire cores are arranged in an annular array in the heat-insulating inner sheath, insulating layers are respectively coated on the outer edge surfaces of the wire cores, and the heat-insulating inner sheath is internally filled with flame-retardant filling materials for achieving a flame-retardant effect.
Further, a cavity groove is formed in the middle in the flame-retardant filling material, and an anti-deformation steel core is arranged in the middle in the cavity groove.
Further, the inner edge surface of the flame-retardant outer sheath is formed by annular array bonding and fixing a plurality of compression-resistant steel belts, and a plurality of grooves are formed in the outer edge surface of the steel-plastic composite belt in annular array.
Further, the grooves are internally coated with an adhesive, and one end of the compression-resistant steel belt, which is abutted against the inside of the grooves, is fixedly adhered to the inside of the grooves.
Further, a heat reflecting film is adhered to the outer edge surface of the heat insulation inner sheath, and the steel-plastic composite belt is adhered and fixed to the outer edge surface of the heat reflecting film.
Compared with the prior art, the utility model has the following beneficial effects:
the flame-retardant outer sheath, the heat-insulating inner sheath and the flame-retardant filler are arranged, a primary flame-retardant layer is formed through the flame-retardant outer sheath, heat is isolated through the heat-insulating inner sheath bonded with the heat reflection film, so that the flame-retardant effect of the cable is improved, and when the flame-retardant outer sheath, the steel-plastic composite belt and the heat-insulating inner sheath are artificially damaged, the flame-retardant effect can be still provided through the flame-retardant filler, so that the spreading speed of fire on the halogen-free cable is effectively restrained, and the high flame-retardant and high environment-friendly standard is achieved;
the cable is prevented from being damaged due to excessive bending by virtue of the plurality of compression-resistant steel belts arranged in the flame-retardant outer sheath and the deformation-resistant steel cores arranged in the flame-retardant filler, and the cable is absorbed by virtue of the plurality of compression-resistant steel belts matched with the steel-plastic composite belt, so that the service life of the cable is greatly prolonged, and the cable is high in practicability.
Drawings
FIG. 1 is a schematic diagram of the structure of the present utility model;
FIG. 2 is a schematic view of the internal structure of the present utility model;
fig. 3 is an enlarged schematic view of the structure of fig. 2 a according to the present utility model.
In the figure: 1. a flame retardant outer sheath; 2. steel-plastic composite belt; 3. a heat insulating inner jacket; 4. a wire core; 5. an insulating layer; 6. flame retardant filler; 7. an anti-deformation steel core; 8. and (5) a compression-resistant steel belt.
Detailed Description
The utility model is further described in connection with the following detailed description, in order to make the technical means, the creation characteristics, the achievement of the purpose and the effect of the utility model easy to understand.
As shown in fig. 1, fig. 2 and fig. 3, the high-flame-retardant halogen-free cable comprises a flame-retardant outer sheath 1, a steel-plastic composite belt 2 is fixedly arranged in the flame-retardant outer sheath 1, a heat insulation inner sheath 3 is fixedly arranged in the steel-plastic composite belt 2, a plurality of wire cores 4 are arranged in an annular array in the heat insulation inner sheath 3, insulating layers 5 are respectively coated on the outer edge surfaces of the wire cores 4, the heat insulation inner sheath 3 is filled with a flame-retardant filling material 6 for playing a flame-retardant effect, a primary flame-retardant layer is formed through the flame-retardant outer sheath 1, heat is isolated through the heat insulation inner sheath 3 bonded with a heat reflection film, and thus the flame-retardant effect of the cable is improved, and when the flame-retardant outer sheath 1, the steel-plastic composite belt 2 and the heat insulation inner sheath 3 are artificially damaged, the flame-retardant effect can still be provided through the flame-retardant filling material 6, so that the spreading speed of a fire on the halogen-free cable is effectively suppressed, and the high flame-retardant and environment-friendly standards are achieved.
As shown in fig. 2 and 3, wherein, the cavity groove has been seted up in the middle in the fire-retardant filler 6, and the cavity inslot is provided with the anti-deformation steel core 7 in the middle, the inner edge of fire-retardant oversheath 1 is annular array bonding and is fixed with a plurality of resistance to compression steel strips 8, and is annular array on the outer fringe face of steel-plastic composite belt 2 and set up a plurality of recesses, the coating has the binder in the recess, and resistance to compression steel strip 8 support the one end bonding of inserting in the recess and be fixed in the recess, bond on the outer fringe face of thermal-insulated oversheath 3 and have the heat reflection film, and steel-plastic composite belt 2 bonding is fixed in on the outer fringe face of heat reflection film, prevents the circumstances that damage appears because of excessive buckling through the anti-deformation steel core 7 that sets up in the fire-retardant filler 6 to realize the absorption to external pressure through a plurality of resistance to compression steel strips 8 cooperation steel-plastic composite belt 2, improved the life of this cable by a wide margin, the practicality is stronger.
Working principle: this high fire-retardant halogen-free cable, during the use, form preliminary flame retardant layer through fire-retardant oversheath 1, and isolate the heat through bonding the thermal-insulated inner sheath 3 that has the heat reflection membrane, thereby improve the flame retardant efficiency of this cable, when fire-retardant oversheath 1, steel is moulded compound area 2 and thermal-insulated inner sheath 3 suffer artificial destruction, still accessible fire-retardant filler 6 provides flame retardant efficiency, thereby effectively suppress the spreading rate of fire on halogen-free cable, and because the setting of deformation steel core 7 is prevented in fire-retardant filler 6 can prevent this cable from appearing damaging the condition because of excessive buckling, and a plurality of compressive steel strips 8 cooperate steel is moulded compound area 2 to realize the absorption to external pressure, reducible cable artificial impaired condition has improved the life of this cable by a wide margin, the security is higher.
The foregoing has shown and described the basic principles and main features of the present utility model and the advantages of the present utility model. It will be understood by those skilled in the art that the present utility model is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present utility model, and various changes and modifications may be made without departing from the spirit and scope of the utility model, which is defined in the appended claims. The scope of the utility model is defined by the appended claims and equivalents thereof.
Claims (5)
1. A high flame-retardant halogen-free cable comprises a flame-retardant outer sheath (1);
the method is characterized in that: the flame-retardant outer sheath (1) internal fixation is provided with the steel-plastic composite belt (2), and the steel-plastic composite belt (2) internal fixation is provided with thermal-insulated inner sheath (3), be a plurality of sinle silk (4) of annular whole being listed as in thermal-insulated inner sheath (3), a plurality of all the cladding is provided with insulating layer (5) on the outer fringe face of sinle silk (4), and thermal-insulated inner sheath (3) intussuseption is filled with flame retardant filler (6) that are used for playing flame retardant effect.
2. A high flame retardant halogen free cable as defined in claim 1, wherein: a cavity groove is formed in the middle of the flame retardant filling material (6), and an anti-deformation steel core (7) is arranged in the middle of the cavity groove.
3. A high flame retardant halogen free cable as defined in claim 1, wherein: the inner edge surface of the flame-retardant outer sheath (1) is fixedly adhered with a plurality of compression-resistant steel belts (8) in an annular array, and a plurality of grooves are formed in the outer edge surface of the steel-plastic composite belt (2) in an annular array.
4. A high flame retardant halogen free cable as claimed in claim 3, wherein: the groove is internally coated with an adhesive, and one end of the compression-resistant steel belt (8) which is abutted against the inside of the groove is fixedly adhered to the inside of the groove.
5. A high flame retardant halogen free cable as defined in claim 1, wherein: the heat-insulating inner sheath (3) is adhered with a heat reflecting film on the outer edge surface, and the steel-plastic composite belt (2) is adhered and fixed on the outer edge surface of the heat reflecting film.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320244336.7U CN219610094U (en) | 2023-02-17 | 2023-02-17 | High flame-retardant halogen-free cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320244336.7U CN219610094U (en) | 2023-02-17 | 2023-02-17 | High flame-retardant halogen-free cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219610094U true CN219610094U (en) | 2023-08-29 |
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ID=87756882
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320244336.7U Active CN219610094U (en) | 2023-02-17 | 2023-02-17 | High flame-retardant halogen-free cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219610094U (en) |
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2023
- 2023-02-17 CN CN202320244336.7U patent/CN219610094U/en active Active
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