CN214588118U - Three-core fireproof medium-voltage cable - Google Patents
Three-core fireproof medium-voltage cable Download PDFInfo
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- CN214588118U CN214588118U CN202120681682.2U CN202120681682U CN214588118U CN 214588118 U CN214588118 U CN 214588118U CN 202120681682 U CN202120681682 U CN 202120681682U CN 214588118 U CN214588118 U CN 214588118U
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Abstract
The utility model provides a three-core fire prevention medium voltage cable which characterized in that: including the three sinle silk that is regular triangle-shaped and arranges, it has the packing skeleton to fill in the clearance department of adjacent insulation sinle silk, and the both ends of packing skeleton are equipped with matched with public end and female end, the packing skeleton is equipped with threely, surrounds into circular filling layer, is equipped with the chamotte filling layer in the outside of circular filling layer, winds in the outside of chamotte filling layer and is equipped with the band layer, and the outside of band layer is equipped with the restrictive coating. The utility model provides a three-core fire prevention medium voltage cable adopts the form of filling the skeleton, and is the circular structure with the whole complement of the sinle silk outside of three-core cable, and the public end and the female end to end connection of adjacent packing skeleton for the difficult skew of packing skeleton has guaranteed the integrality of packing the skeleton.
Description
Technical Field
The utility model relates to the technical field of cables, especially a three-core fire prevention medium voltage cable.
Background
In the mud extrusion process of the three-core fireproof medium-voltage cable, the cable cores are arranged in a regular triangle manner, so that the fire clay is extruded on the surfaces of three cable core structures arranged in a regular triangle manner, the mud extrusion difficulty is higher than that of the mud extrusion on the surface of a single circular cable core, the mud extrusion is easy and uneven, and the cable is eccentric. The utility model with the publication number of CN209822364U discloses a fireproof medium-voltage cable, which adopts three fan-shaped filling frameworks to be placed at the groove formed by adjacent wire cores, so that the three wire cores and the three filling frameworks can form a structure similar to a circle, and then mud is squeezed, so that the mud squeezing is more uniform; however, the fan-shaped filling frameworks are relatively independent, so that the filling frameworks are easy to displace or cheap when arranged, the internal structure is loose after cabling, and the filling frameworks are easy to dislocate when extruded.
Disclosure of Invention
The utility model aims to solve the technical problem that a three-core fire prevention medium voltage cable is provided, make extruding of chamotte more even, prevent that the cable is eccentric.
In order to solve the technical problem, the utility model discloses the technical scheme who adopts is: the utility model provides a three-core fire prevention medium voltage cable which characterized in that: including the three sinle silk that is regular triangle-shaped and arranges, it has the packing skeleton to fill in the clearance department of adjacent insulation sinle silk, and the both ends of packing skeleton are equipped with matched with public end and female end, the packing skeleton is equipped with threely, surrounds into circular filling layer, is equipped with the chamotte filling layer in the outside of circular filling layer, winds in the outside of chamotte filling layer and is equipped with the band layer, and the outside of band layer is equipped with the restrictive coating.
Preferably, the outer surface of the filling skeleton is serrated.
Preferably, the inner surface of the filling framework is attached to the outer surface of the wire core.
Preferably, the filling framework is made of low-smoke halogen-free polyolefin material.
The utility model provides a three-core fire prevention medium voltage cable adopts the form of filling the skeleton, and is the circular structure with the whole complement of the sinle silk outside of three-core cable, and the public end and the female end to end connection of adjacent packing skeleton for the difficult skew of packing skeleton has guaranteed the integrality of packing the skeleton.
Drawings
The invention will be further explained with reference to the following figures and examples:
fig. 1 is a schematic structural view of the present invention;
fig. 2 is a schematic structural diagram of the filling framework of the present invention.
Detailed Description
As shown in fig. 1-2, a three-core fireproof medium voltage cable comprises three wire cores 1 arranged in a regular triangle, wherein a filling framework 2 is filled in the gap between adjacent insulating wire cores, two ends of the filling framework 2 are provided with a male end 3 and a female end 4 which are matched with each other, the filling framework 2 is three and surrounds into a circular filling layer, a fire clay filling layer 5 is arranged on the outer side of the circular filling layer, a wrapping layer 6 is wound on the outer side of the fire clay filling layer, and a sheath layer 7 is arranged on the outer side of the wrapping layer 6. The fire clay that sets up the packing skeleton messenger can extrude on circular shape filling layer for crowded mud is even, and difficult off-centre has guaranteed the roundness of cable.
Preferably, the outer surface of the filling framework 2 is serrated. The saw-toothed shape increases the adhesive force of the refractory mortar and the contact area of the refractory mortar and the filling framework.
Preferably, the inner surface of the filling framework 2 is attached to the outer surface of the wire core 1. Make the inside inseparabler of cable, further guaranteed the inside stability of cable.
Preferably, the filling framework 2 is made of low-smoke halogen-free polyolefin material, and the smoke generated in the case of fire is less.
The utility model discloses a three filling framework 2 surrounds into a closed circular structure, need not the displacement when receiving external force extrusion, and fixes a position when installing more easily.
The above-mentioned embodiments are merely preferred embodiments of the present invention, and should not be considered as limitations of the present invention, and the protection scope of the present invention should be defined by the technical solutions described in the claims, and includes equivalent alternatives of technical features in the technical solutions described in the claims. Namely, equivalent alterations and modifications within the scope of the invention are also within the scope of the invention.
Claims (4)
1. The utility model provides a three-core fire prevention medium voltage cable which characterized in that: including three sinle silk (1) that are regular triangle-shaped and arrange, it has packing skeleton (2) to fill in the clearance department of adjacent insulation sinle silk, and the both ends of packing skeleton (2) are equipped with matched with public end (3) and female end (4), packing skeleton (2) are equipped with threely, surround into circular filling layer, are equipped with fire clay filling layer (5) in the outside of circular filling layer, around being equipped with band layer (6) in the outside of fire clay filling layer, and the outside of band layer (6) is equipped with restrictive coating (7).
2. The three-core fire-proof medium voltage cable of claim 1, wherein: the outer surface of the filling framework (2) is serrated.
3. The three-core fire-proof medium voltage cable of claim 1, wherein: the inner surface of the filling framework (2) is attached to the outer surface of the wire core (1).
4. The three-core fire-proof medium voltage cable of claim 1, wherein: the filling framework (2) is made of low-smoke halogen-free polyolefin material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120681682.2U CN214588118U (en) | 2021-04-02 | 2021-04-02 | Three-core fireproof medium-voltage cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120681682.2U CN214588118U (en) | 2021-04-02 | 2021-04-02 | Three-core fireproof medium-voltage cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214588118U true CN214588118U (en) | 2021-11-02 |
Family
ID=78357309
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120681682.2U Active CN214588118U (en) | 2021-04-02 | 2021-04-02 | Three-core fireproof medium-voltage cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214588118U (en) |
-
2021
- 2021-04-02 CN CN202120681682.2U patent/CN214588118U/en active Active
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