CN216435520U - Special high temperature resistant power cable - Google Patents
Special high temperature resistant power cable Download PDFInfo
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- CN216435520U CN216435520U CN202122751405.7U CN202122751405U CN216435520U CN 216435520 U CN216435520 U CN 216435520U CN 202122751405 U CN202122751405 U CN 202122751405U CN 216435520 U CN216435520 U CN 216435520U
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- high temperature
- power cable
- temperature resistant
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Abstract
The utility model discloses a special high temperature resistant power cable, which comprises a conducting wire, wherein the conducting wire is sequentially wrapped with a heat insulation shielding layer, a fire retardant layer, a PVC insulating layer, an electromagnetic shielding layer, a wrapping tape and an outer sheath from inside to outside; the wire comprises three conductors which are equidistantly distributed on the inner side of the heat insulation shielding layer, a limiting member is arranged at the center of the wire, the limiting member comprises a framework, three support rods are fixedly arranged on the framework, and the tail end of each support rod is provided with an arc-shaped first support part; the limiting member also comprises bearing rods positioned between every two adjacent supporting rods, and the tail end of each bearing rod is provided with an arc-shaped second support part connected with the inner side of the heat-insulating shielding layer; the light unit is arranged on the inner side of the heat insulation shielding layer and is filled with non-wetting fillers. The utility model has the advantages of it is following and effect: the refractory temperature and duration can be increased and the stability of the inner wire can be improved.
Description
Technical Field
The utility model relates to the technical field of cables, in particular to special high temperature resistant power cable.
Background
Cable is a generic term for optical cables, electrical cables, and the like. The cable has many purposes, is mainly used for controlling installation, connecting equipment, transmitting power and other multiple functions, and is a common and indispensable object in daily life.
The existing power cable has the defects of low fire-resistant temperature and short fire-resistant duration time in practical application; and the stability performance of the lead inside the cable is poor, and the cable is easy to stretch and swing in severe environment. Therefore, there is a need for a special high temperature resistant power cable to achieve the purpose of improving the fire resistant temperature and duration, and at the same time improving the stability of the inner wires.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a special high temperature resistant power cable to solve the problem that proposes in the background art.
The above technical purpose of the present invention can be achieved by the following technical solutions: a special high-temperature-resistant power cable comprises a lead, wherein a thermal insulation shielding layer, a fire retardant layer, a PVC insulating layer and an electromagnetic shielding layer are sequentially wrapped outside the lead from inside to outside, a wrapping tape is wound outside the electromagnetic shielding layer, an outer sheath is wrapped outside the wrapping tape, and a tearing rope is arranged in the outer sheath;
the wire comprises three conductors which are equidistantly distributed on the inner side of the thermal insulation shielding layer, the three conductors are respectively a first conductor, a second conductor and a third conductor, a limiting component is arranged at the central position of the wire, the limiting component comprises a framework, three supporting rods which extend and are fixed towards the conductors respectively are fixedly arranged on the framework, a first support part connected with the corresponding conductor is arranged at the tail end of each supporting rod, each first support part is arc-shaped, and each supporting rod and each first support part are made of insulating materials; the limiting component also comprises bearing rods positioned between every two adjacent supporting rods, the tail end of each bearing rod is provided with a second support part connected with the inner side of the heat insulation shielding layer, and each second support part is arc-shaped;
and a light unit is arranged on the inner side of the heat insulation shielding layer and is filled with non-wetting fillers.
The further setting is that: and a reinforcing rib is arranged between each supporting rod and each bearing rod.
The further setting is that: the heat insulation shielding layer is composed of ceramic fiber paper adhered with aluminum foil.
The further setting is that: the fire retardant layer is a silicon rubber ceramic belt.
The further setting is that: the electromagnetic shielding layer is of a metal net structure.
The further setting is that: the non-wet filler comprises glass fiber and polypropylene.
The beneficial effects of the utility model reside in that:
reach the purpose of back-fire relief through setting up outer flame retardant coating, be equipped with simultaneously and separate the threshold value that the high temperature is improved to the shielding layer that improves, can bear the high temperature within 1100 degrees in the in-service use, solved the low, fire-resistant duration short defect of fire-resistant temperature among the background art from this. In addition, still through setting up the framework to utilize the bracing piece on the framework to fix first conductor, second conductor and third conductor, effectively avoid the conductor tensile under adverse circumstances, the condition of rocking to take place, the rethread sets up with the first support portion of each conductor assorted arc to optimize fixedly. In addition, the fixing of the self position of the framework is realized through the bearing rod and the second support part, so that the whole structure is more reasonable and stable.
Drawings
Fig. 1 is a schematic structural diagram of the embodiment.
In the figure: 11. a thermal insulation shielding layer; 12. a fire barrier layer; 13. a PVC insulating layer; 14. an electromagnetic shielding layer; 15. wrapping a tape; 16. an outer sheath; 17. tearing the rope; 21. a first conductor; 22. a second conductor; 23. a third conductor; 31. a frame; 41. a support bar; 42. a first support part; 51. a carrier bar; 52. a second support part; 61. a light unit; 71. reinforcing ribs; 81. a non-wetting filler.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
As shown in the attached drawing 1, the special high-temperature-resistant power cable comprises a lead, wherein a heat-insulating shielding layer 11, a fire-retardant layer 12, a PVC insulating layer 13 and an electromagnetic shielding layer 14 are sequentially wrapped outside the lead from inside to outside, a wrapping tape 15 is wound outside the electromagnetic shielding layer 14, an outer sheath 16 is wrapped outside the wrapping tape 15, and a tearing rope 17 is arranged in the outer sheath 16;
the lead comprises three conductors which are equidistantly distributed on the inner side of the thermal insulation shielding layer 11, the three conductors are respectively a first conductor 21, a second conductor 22 and a third conductor 23, a limiting member is arranged at the central position of the lead and comprises a framework 31, three support rods 41 which extend and are fixed towards the conductors respectively are fixedly arranged on the framework 31, a first support part 42 connected with the corresponding conductor is arranged at the tail end of each support rod 41, each first support part 42 is arc-shaped, and each support rod 41 and each first support part 42 are made of insulating materials; the limiting component also comprises bearing rods 51 positioned between every two adjacent supporting rods 41, the tail end of each bearing rod 51 is provided with a second support part 52 connected with the inner side of the heat insulation shielding layer 11, and each second support part 52 is arc-shaped;
the light unit 61 is disposed inside the thermal insulation shield layer 11 and filled with a non-moisture filler 81.
Wherein, a reinforcing rib 71 is arranged between each support rod 41 and the bearing rod 51.
Wherein, the thermal insulation shielding layer 11 is composed of ceramic fiber paper adhered with aluminum foil.
Wherein, the fire retardant layer 12 is a silicon rubber ceramic belt.
The electromagnetic shielding layer 14 is a metal mesh structure.
The non-wetting filler 81 includes glass fiber and polypropylene.
The specific embodiments are only for explaining the present invention, and it is not a limitation to the present invention, and those skilled in the art can make modifications to the embodiments without inventive contribution as required after reading the present specification, but all the embodiments are protected by patent law within the scope of the claims of the present invention.
Claims (5)
1. A special high temperature resistant power cable, including the wire, its characterized in that: the cable is characterized in that a heat insulation shielding layer (11), a fire retardant layer (12), a PVC insulating layer (13) and an electromagnetic shielding layer (14) are sequentially wrapped outside the cable from inside to outside, a wrapping tape (15) is wound outside the electromagnetic shielding layer (14), an outer sheath (16) is wrapped outside the wrapping tape (15), and a tearing rope (17) is arranged in the outer sheath (16);
the wire comprises three conductors which are equidistantly distributed on the inner side of a thermal insulation shielding layer (11), the three conductors are respectively a first conductor (21), a second conductor (22) and a third conductor (23), a limiting component is arranged at the central position of the wire, the limiting component comprises a framework (31), three supporting rods (41) which extend and are fixed towards the conductors are fixedly arranged on the framework (31), a first support part (42) connected with the corresponding conductor is arranged at the tail end of each supporting rod (41), each first support part (42) is arc-shaped, and the supporting rods (41) and the first support parts (42) are made of insulating materials; the limiting component also comprises bearing rods (51) positioned between every two adjacent supporting rods (41), the tail end of each bearing rod (51) is provided with a second support part (52) connected with the inner side of the heat-insulating shielding layer (11), and each second support part (52) is arc-shaped;
the light unit (61) is arranged on the inner side of the heat insulation shielding layer (11), and the light unit is filled with a non-wetting filler (81).
2. A special high temperature resistant power cable according to claim 1, characterized in that: and a reinforcing rib (71) is arranged between each support rod (41) and each bearing rod (51).
3. A special high temperature resistant power cable according to claim 1, characterized in that: the heat insulation shielding layer (11) is composed of ceramic fiber paper adhered with aluminum foil.
4. A special high temperature resistant power cable according to claim 1, characterized in that: the fire retardant layer (12) is a silicon rubber ceramic belt.
5. A special high temperature resistant power cable according to claim 1, characterized in that: the electromagnetic shielding layer (14) is of a metal net structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122751405.7U CN216435520U (en) | 2021-11-10 | 2021-11-10 | Special high temperature resistant power cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122751405.7U CN216435520U (en) | 2021-11-10 | 2021-11-10 | Special high temperature resistant power cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216435520U true CN216435520U (en) | 2022-05-03 |
Family
ID=81336277
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122751405.7U Active CN216435520U (en) | 2021-11-10 | 2021-11-10 | Special high temperature resistant power cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216435520U (en) |
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2021
- 2021-11-10 CN CN202122751405.7U patent/CN216435520U/en active Active
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