CN211604769U - Fire-resistant high temperature resistant type power cable - Google Patents
Fire-resistant high temperature resistant type power cable Download PDFInfo
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- CN211604769U CN211604769U CN201921715891.3U CN201921715891U CN211604769U CN 211604769 U CN211604769 U CN 211604769U CN 201921715891 U CN201921715891 U CN 201921715891U CN 211604769 U CN211604769 U CN 211604769U
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Abstract
The utility model belongs to the technical field of the special type cable technique and specifically relates to a fire-resistant high temperature resistant type power cable, including wire and a plurality of fire-retardant support, the outer wall cladding of wire has the internal insulation layer, fire-retardant support includes annular fire-retardant ring, the coaxial bracing piece that is provided with in the middle part of the inner chamber of fire-retardant ring, the inner chamber of fire-retardant ring evenly is provided with a plurality of connecting blocks, the bracing piece is connected with fire-retardant ring through polylith connecting block, the connecting block divides the inner chamber of fire-retardant ring into a plurality of independent cavitys, the wire passes a plurality of independent cavitys, the outer wall cladding of wire has the internal insulation layer, the outer wall of internal insulation layer is the heliciform and twines glass fiber bundle, the wire aerial distribution inside this fire-resistant high temperature resistant type power cable is in a plurality of cavitys of fire-retardant support, prevents that stranded conductor from contacting, makes the cable, has good fire-resistant and high-temperature resistant performance.
Description
Technical Field
The utility model relates to a special type cable technical field especially relates to a fire-resistant high temperature resistant type power cable.
Background
Along with the acceleration of urbanization process, the rapid development of electric power transmission and communication for people's requirement to wire and cable is more and more high, not only requires that the cable has the characteristics of safety ring guarantor, has lower cost moreover, and traditional cable more has adopted the structure of heat-proof quality difference not to fire the flame. Therefore, in case of fire, the cable is not flame-resistant and difficult to insulate flame, so that the flame can easily ablate the protective layers, and the cable is directly burned by the flame, so that the cable cannot work due to short circuit.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving the shortcoming that the fire-resistant high temperature resistance of cable is not enough among the prior art, and the fire-resistant high temperature resistant type power cable who provides.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a fire-resistant high-temperature-resistant power cable is designed, which comprises a lead and a plurality of flame-retardant brackets, wherein the flame-retardant brackets are externally coated with an outer insulating layer, the outer wall of the outer insulating layer is coated with a wear-resistant protective layer, the flame-retardant bracket comprises an annular flame-retardant ring, the middle part of the inner cavity of the flame-retardant ring is coaxially provided with a support rod, the inner cavity of the flame-retardant ring is uniformly provided with a plurality of connecting blocks, the supporting rod is connected with the flame-retardant ring through a plurality of connecting blocks, the connecting blocks divide the inner cavity of the flame-retardant ring into a plurality of independent cavities, the lead passes through a plurality of independent cavities, the outer wall of the lead is wrapped with an inner insulating layer, the outer wall of the inner insulating layer is spirally wound with glass fiber bundles, the outer wall of the flame-retardant ring and the supporting rods are provided with through holes which are coaxially distributed, the through holes are internally provided with connecting ropes in an inserting mode, and the connecting ropes connect a plurality of flame-retardant supports in series.
The outer insulating layer is a low-temperature ceramic silicon rubber layer, and the wear-resistant protective layer is a wear-resistant rubber layer.
The flame-retardant bracket is a phenolic resin bracket, and flame-retardant mineral particles are filled in the inner cavity of the flame-retardant bracket.
The utility model provides a pair of fire-resistant high temperature resistant type power cable, beneficial effect lies in: through setting up fire-retardant support, fire-retardant support's inner chamber sets up the polylith connecting block, the connecting frame is cut apart into a plurality of independent cavitys with fire-retardant support, the wire distributes in the cavity, fire-retardant support has good fire retardance for phenolic plastic, when catching fire around the cable, the outer insulation layer plays preliminary fire-retardant effect, after the great outer insulation layer of intensity of a fire damages, the inside wire aerial distribution of cable is in a plurality of cavitys of fire-retardant support, prevent that stranded conductor from taking place the contact, make the cable still can keep the normal circular telegram of circuit at a period after catching fire, a plurality of fire-retardant support interval distribution are in the cable simultaneously, a plurality of fire-retardant supports link together through connecting the rope, prevent that whole cable compliance is not enough and be difficult to lay.
Drawings
Fig. 1 is a schematic structural view of a fire-resistant and high-temperature-resistant power cable provided by the present invention;
fig. 2 is the utility model provides a fire-resistant high temperature resistant type power cable's schematic structure diagram.
In the figure: the cable comprises an outer insulating layer 1, a wear-resistant protective layer 2, an inner insulating layer 3, a lead 4, a support rod 5, a connecting block 6, a flame-retardant support 7, a through hole 8, a glass fiber bundle 9 and a connecting rope 10.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.
Referring to fig. 1-2, a fire-resistant and high-temperature-resistant power cable comprises a wire 4 and a plurality of flame-retardant supports 7, wherein the outer parts of the flame-retardant supports 7 are coated with an outer insulating layer 1, the outer wall of the outer insulating layer 1 is coated with a wear-resistant protective layer 2, the flame-retardant supports 7 comprise annular flame-retardant rings, a support rod 5 is coaxially arranged in the middle of the inner cavity of each flame-retardant ring, a plurality of connecting blocks 6 are uniformly arranged in the inner cavity of each flame-retardant ring, the support rod 5 is connected with the flame-retardant rings through a plurality of connecting blocks 6, the inner cavity of each flame-retardant ring is divided into a plurality of independent cavities by the connecting blocks 6, the wire 4 penetrates through the plurality of independent cavities, the outer wall of the wire 4 is coated with an inner insulating layer 3, glass fiber bundles 9 are spirally wound on the outer wall of the, a plurality of connecting ropes 10 connect a plurality of flame-retardant brackets 7 in series.
The outer insulating layer 1 is a low-temperature ceramic silicon rubber layer, the wear-resistant protective layer 2 is a wear-resistant rubber layer, the soft characteristic and the good electrical insulation type of the silicon rubber are kept on the low-temperature ceramic silicon rubber layer at normal temperature, the low-temperature ceramic silicon rubber layer is converted into an inorganic ceramic material at high temperature, the structure inside the cable can be protected, the conductor structure inside the cable is prevented from being damaged, and the cable has good high-temperature resistance.
Fire-retardant support 7 is the phenolic resin support, it has fire-retardant mineral particles to fill in fire-retardant support 7's the inner chamber, the phenolic resin support has good fire resistance, when catching fire around the cable, outer insulating layer 1 plays preliminary fire-retardant and the effect of protection, after 1 damage of the great outer insulating layer of intensity of a fire, 4 overhead distributions of wire inside the cable are in a plurality of cavitys of fire-retardant support 7, prevent that stranded conductor from taking place the contact in the wire 4, make the cable still can keep the normal circular telegram of circuit at a period of time after catching fire, 7 interval distribution of a plurality of fire-retardant supports are in the cable simultaneously, a plurality of fire-retardant supports 7 link together through connecting rope 10, prevent that whole cable compliance is not enough and be difficult to lay.
The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.
Claims (3)
1. The utility model provides a fire-resistant high temperature resistant type power cable, includes wire (4) and a plurality of fire-retardant support (7), its characterized in that, a plurality of the outside cladding of fire-retardant support (7) has outer insulating layer (1), the outer wall cladding of outer insulating layer (1) has wear-resisting protective layer (2), fire-retardant support (7) are including annular fire-retardant ring, the coaxial bracing piece (5) that is provided with in inner chamber middle part of fire-retardant ring, fire-retardant ring's inner chamber evenly is provided with a plurality of connecting blocks (6), bracing piece (5) are connected with fire-retardant ring through polylith connecting block (6), connecting block (6) are cut apart into a plurality of independent cavities with fire-retardant ring's inner chamber, wire (4) pass a plurality of independent cavities, the outer wall cladding of wire (4) has inner insulating layer (3), the outer wall of inner insulating layer (3) is the heliciform winding and, the flame-retardant support is characterized in that through holes (8) which are coaxially distributed are formed in the outer wall of the flame-retardant ring and the support rod (5), connecting ropes (10) are arranged in the through holes (8) in an inserting mode, and the connecting ropes (10) are connected with a plurality of flame-retardant supports (7) in series.
2. A fire and temperature resistant power cable according to claim 1, wherein said outer insulating layer (1) is a low temperature ceramic silicone rubber layer and said wear resistant protective layer (2) is a wear resistant rubber layer.
3. The fire-resistant and high-temperature-resistant power cable according to claim 1, wherein the flame-retardant bracket (7) is a phenolic resin bracket, and the inner cavity of the flame-retardant bracket (7) is filled with flame-retardant mineral particles.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921715891.3U CN211604769U (en) | 2019-10-14 | 2019-10-14 | Fire-resistant high temperature resistant type power cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921715891.3U CN211604769U (en) | 2019-10-14 | 2019-10-14 | Fire-resistant high temperature resistant type power cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211604769U true CN211604769U (en) | 2020-09-29 |
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ID=72585689
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921715891.3U Active CN211604769U (en) | 2019-10-14 | 2019-10-14 | Fire-resistant high temperature resistant type power cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211604769U (en) |
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2019
- 2019-10-14 CN CN201921715891.3U patent/CN211604769U/en active Active
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