CN219716534U - high-UV-resistant flame-retardant B1-level special cable for rail transit - Google Patents
high-UV-resistant flame-retardant B1-level special cable for rail transit Download PDFInfo
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- CN219716534U CN219716534U CN202320266322.5U CN202320266322U CN219716534U CN 219716534 U CN219716534 U CN 219716534U CN 202320266322 U CN202320266322 U CN 202320266322U CN 219716534 U CN219716534 U CN 219716534U
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- Prior art keywords
- outside
- sinle silk
- layer
- cable
- filling layer
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Links
- 239000003063 flame retardant Substances 0.000 title claims abstract description 15
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 title claims abstract description 12
- 229910052500 inorganic mineral Inorganic materials 0.000 claims abstract description 14
- 239000010445 mica Substances 0.000 claims abstract description 14
- 229910052618 mica group Inorganic materials 0.000 claims abstract description 14
- 239000011707 mineral Substances 0.000 claims abstract description 14
- 239000004020 conductor Substances 0.000 claims abstract description 11
- 229910001335 Galvanized steel Inorganic materials 0.000 claims description 4
- 239000004698 Polyethylene Substances 0.000 claims description 4
- 239000008397 galvanized steel Substances 0.000 claims description 4
- 239000000463 material Substances 0.000 claims description 4
- -1 polyethylene Polymers 0.000 claims description 4
- 229920000573 polyethylene Polymers 0.000 claims description 4
- 229920000098 polyolefin Polymers 0.000 claims description 4
- 239000000779 smoke Substances 0.000 claims description 4
- 230000000694 effects Effects 0.000 abstract description 3
- 230000001133 acceleration Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 229910052736 halogen Inorganic materials 0.000 description 1
- 150000002367 halogens Chemical class 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
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- Insulated Conductors (AREA)
Abstract
The utility model discloses a high-UV-resistant flame-retardant B1-level special cable for rail transit, and belongs to the technical field of cables. Including a plurality of sinle silk units, sinle silk unit includes the conductor, around the package at the outside insulating layer of mica tape and crowded package in the mica tape of conductor surface, sinle silk unit is annular distribution, is equipped with the filling layer in the inside cavity that the sinle silk unit encloses, and the outside of sinle silk unit is equipped with mineral filling layer, and the outside of sinle silk unit and mineral filling layer is equipped with the band layer, and the outside crowded package of band layer has the inner sheath, and the outside of inner sheath is equipped with the armor, and the outside crowded package of armor has the oversheath. According to the utility model, the mica tape is added into the cable structure, so that the overall flame retardant property of the cable is improved; the inside cavity that the line core unit encloses in the structure sets up the filling layer, and the outside sets up mineral filling layer, and the inside and outside structure that all sets up the filling layer has promoted the structural stability of cable, prevents simultaneously that moisture from radially getting into the cable core and flowing along longitudinal direction, plays the effect of protection sinle silk unit.
Description
Technical Field
The utility model relates to the technical field of cables, in particular to a high-UV-resistant flame-retardant B1-level special cable for rail transit.
Background
Along with the obvious acceleration of the urban process, the rail transit becomes the most important transportation means for solving urban congestion and ensuring smooth travel of citizens; the cable product plays an important role in the power transmission and signal transmission of the rail transit.
In recent years, the cable for subway rail transit is rapidly developed along with the acceleration of national urban rail transit, and the cable body in the prior art can meet the use requirement of basic electric performance, but the service life of the cable body is reduced due to the influence of external factors because the cable is exposed in the air for a long time or buried in the ground for a long time, so that the cable is unfavorable for use.
Disclosure of Invention
In order to solve the problems, the utility model provides a high-UV-resistant flame-retardant B1-grade special cable for rail transit.
The utility model is realized by the following technical scheme:
the utility model provides a high anti UV fire-retardant B level special cable for track traffic, includes a plurality of sinle silk units, sinle silk unit includes the conductor, around the mica tape of package at the conductor surface and crowded insulating layer of package outside the mica tape, sinle silk unit is annular distribution, be equipped with the filling layer in the inside cavity that the sinle silk unit encloses, the outside of sinle silk unit is equipped with mineral filling layer, the outside of sinle silk unit and mineral filling layer is equipped with the band layer, the outside crowded package of band layer has the inner sheath, the outside of inner sheath is equipped with the armor, the outside crowded package of armor has the oversheath.
Preferably, the insulating layer is made of a low-smoke halogen-free polyolefin material.
Preferably, the armor layer is a galvanized steel tape layer.
Preferably, the outer sheath is a halogen-free polyethylene insulating layer.
Compared with the prior art, the utility model has the beneficial effects that:
according to the utility model, the mica tape is added into the cable structure, so that the overall flame retardant property of the cable is improved; the inside cavity that the line core unit encloses in the structure sets up the filling layer, and the outside sets up mineral filling layer, and the inside and outside structure that all sets up the filling layer has promoted the structural stability of cable, prevents simultaneously that moisture from radially getting into the cable core and flowing along longitudinal direction, plays the effect of protection sinle silk unit.
Drawings
FIG. 1 is a schematic diagram of the structure of the present utility model.
In the figure: 1. a conductor; 2. a mica tape; 3. an insulating layer; 4. a filling layer; 5. a mineral filling layer; 6. a tape layer; 7. an inner sheath; 8. an armor layer; 9. an outer sheath.
Detailed Description
The utility model is further described below with reference to the accompanying drawings:
as shown in figure 1 of the accompanying drawings, the high UV-resistant flame-retardant B1-level special cable for rail transit comprises a plurality of wire core units, wherein each wire core unit comprises a conductor 1, a mica tape 2 wrapped on the outer surface of the conductor 1 and an insulating layer 3 extruded outside the mica tape 2, the wire core units are distributed in a ring shape, a filling layer 4 is arranged in an inner cavity surrounded by the wire core units, a mineral filling layer 5 is arranged outside the wire core units, a wrapping tape layer 6 is arranged outside the wire core units and the mineral filling layer 5, an inner sheath 7 is extruded outside the wrapping tape layer 6, an armor layer 8 is arranged outside the inner sheath 7, and an outer sheath 9 is extruded outside the armor layer 8.
The insulating layer 3 is made of low-smoke halogen-free polyolefin material.
The armor layer 8 is a galvanized steel tape layer.
The outer sheath 9 is a halogen-free polyethylene insulating layer.
Example 1
The utility model provides a high anti UV fire-retardant B1 level special cable for track traffic, includes a plurality of sinle silk units, sinle silk unit includes conductor 1, around the mica tape 2 of package at conductor 1 surface and crowded package at the outside insulating layer 3 of mica tape 2, and insulating layer 3 adopts low smoke and zero halogen polyolefin material to make, sinle silk unit is annular distribution, be equipped with filling layer 4 in the interior cavity that the sinle silk unit encloses, the outside of sinle silk unit is equipped with mineral filling layer 5, the outside of sinle silk unit and mineral filling layer 5 is equipped with band layer 6, the outside crowded package of band layer 6 has inner sheath 7, the outside of inner sheath 7 is equipped with armor 8, and armor 8 is galvanized steel tape layer, the outside crowded package of armor 8 has oversheath 9, and oversheath 9 is halogen-free polyethylene insulating layer.
In the embodiment, the mica tape 2 is added into the cable structure, so that the overall flame retardant property of the cable is improved; the inside cavity that the line core unit encloses in the structure sets up filling layer 4, and the outside sets up mineral filling layer 5, and the structure that inside and outside all set up the filling layer has promoted the structural stability of cable, prevents simultaneously that moisture from radially getting into the cable core and flowing along longitudinal direction, plays the effect of protection sinle silk unit.
In the description of the present utility model, it should be understood that the terms "coaxial," "bottom," "one end," "top," "middle," "another end," "upper," "one side," "top," "inner," "front," "center," "two ends," etc. indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.
Furthermore, the terms "first," "second," "third," "fourth," and the like are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated, whereby features defining "first," "second," "third," "fourth" may explicitly or implicitly include at least one such feature.
In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "configured," "connected," "secured," "screwed," and the like are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intermediaries, or in communication with each other or in interaction with each other, unless explicitly defined otherwise, the meaning of the terms described above in this application will be understood by those of ordinary skill in the art in view of the specific circumstances.
The foregoing description is only illustrative of the preferred embodiments of the present utility model and is not intended to limit the scope of the utility model, but rather the equivalent variations and modifications in shape, construction, characteristics and spirit according to the scope of the claims should be construed to be included in the scope of the claims.
Claims (4)
1. The utility model provides a high anti UV fire-retardant B1 grade special cable for track traffic which characterized in that: including a plurality of sinle silk units, sinle silk unit includes conductor (1), around package mica tape (2) and the crowded insulating layer (3) of package outside mica tape (2) at conductor (1) surface, sinle silk unit is annular distribution, be equipped with filling layer (4) in the inside cavity that sinle silk unit encloses, the outside of sinle silk unit is equipped with mineral filling layer (5), the outside of sinle silk unit and mineral filling layer (5) is equipped with band layer (6), the outside crowded package of band layer (6) has inner sheath (7), the outside of inner sheath (7) is equipped with armor (8), the outside crowded package of armor (8) has oversheath (9).
2. The high UV resistant flame retardant B1 grade specialty cable for rail transit of claim 1, wherein: the insulating layer (3) is made of a low-smoke halogen-free polyolefin material.
3. The high UV resistant flame retardant B1 grade specialty cable for rail transit of claim 1, wherein: the armor layer (8) is a galvanized steel tape layer.
4. The high UV resistant flame retardant B1 grade specialty cable for rail transit of claim 1, wherein: the outer sheath (9) is a halogen-free polyethylene insulating layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320266322.5U CN219716534U (en) | 2023-02-20 | 2023-02-20 | high-UV-resistant flame-retardant B1-level special cable for rail transit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320266322.5U CN219716534U (en) | 2023-02-20 | 2023-02-20 | high-UV-resistant flame-retardant B1-level special cable for rail transit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219716534U true CN219716534U (en) | 2023-09-19 |
Family
ID=87978541
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320266322.5U Active CN219716534U (en) | 2023-02-20 | 2023-02-20 | high-UV-resistant flame-retardant B1-level special cable for rail transit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219716534U (en) |
-
2023
- 2023-02-20 CN CN202320266322.5U patent/CN219716534U/en active Active
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