CN111916257A - Low-halogen thin-wall insulated cable for locomotive - Google Patents
Low-halogen thin-wall insulated cable for locomotive Download PDFInfo
- Publication number
- CN111916257A CN111916257A CN202010841917.XA CN202010841917A CN111916257A CN 111916257 A CN111916257 A CN 111916257A CN 202010841917 A CN202010841917 A CN 202010841917A CN 111916257 A CN111916257 A CN 111916257A
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- China
- Prior art keywords
- halogen
- low
- thin
- flame
- retardant
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
- H01B7/29—Protection against damage caused by extremes of temperature or by flame
- H01B7/295—Protection against damage caused by extremes of temperature or by flame using material resistant to flame
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/02—Disposition of insulation
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/04—Flexible cables, conductors, or cords, e.g. trailing cables
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
- H01B7/18—Protection against damage caused by wear, mechanical force or pressure; Sheaths; Armouring
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
- H01B7/28—Protection against damage caused by moisture, corrosion, chemical attack or weather
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
- H01B7/29—Protection against damage caused by extremes of temperature or by flame
Landscapes
- Insulated Conductors (AREA)
Abstract
The invention relates to the technical field of thin-walled cables, in particular to a low-halogen thin-walled insulated cable for a locomotive. According to the low-halogen thin-wall insulated cable for the locomotive, the thin-wall cable is manufactured by wrapping the conductor through the halogen-free flame-retardant insulating layer and the low-halogen flame-retardant sheath layer, the flame retardant property of the thin-wall insulated cable is effectively improved, the high-temperature-resistant oil-resistant rubber is added into the halogen-free flame-retardant insulating layer and the low-halogen flame-retardant sheath layer, the oil resistance of the cable is improved, the flexibility of the cable is improved, the cable has good low-temperature resistance, the light transmittance of the thin-wall cable is improved through the low-halogen flame-retardant sheath layer, the smoke density of the thin-wall cable is guaranteed to be lower than 20%, and the performance of the cable.
Description
Technical Field
The invention relates to the technical field of thin-wall cables, in particular to a low-halogen thin-wall insulated cable for a locomotive.
Background
At present, two technical standards related to thin-wall insulated cables exist, one is an iron standard TB/T1484.1-2017 (hereinafter referred to as an iron standard version 2017), and the other is an European standard EN 50306-2: 2002. the common characteristic of the two standards is that the thin-wall insulated cable is made of low-smoke halogen-free flame-retardant material. Wherein, the cable sheath layer and the insulating layer of some manufacturers are layered, and the cable is divided into three-layer structure; the insulating layer and the sheath layer of some manufacturers are combined into a whole, the cable has only a two-layer structure, the original mechanical property of the thin-wall insulated cable with the 2017 version iron standard is higher than or equal to 30MPa, the standard is set too high, and a supplier cannot make products of the standard; the euro standard does not have a requirement for the original mechanical properties of thin-walled insulated cables, which is too low. During the wiring construction process of the locomotive, the locomotive has higher wear resistance and higher tensile and tensile strength requirements on an insulating layer and a sheath layer (if any) of the cable; whether the cable is an iron-standard thin-wall insulated cable or a European-standard thin-wall insulated cable, the cable is cracked in batches after long-term use. The cracking phenomenon of the domestic European standard thin-wall insulated cable after a period of use. The iron-labeled thin-wall insulated cable also has the cracking and aging phenomena.
Disclosure of Invention
In order to overcome the defects of poor toughness, low strength and easy cracking and aging of the conventional thin-wall cable, the invention provides a low-halogen thin-wall insulated cable for a locomotive, which is made by coating a conductor with a halogen-free flame-retardant insulating layer and a low-halogen flame-retardant sheath layer.
The technical scheme adopted by the invention for solving the technical problems is as follows: the low-halogen thin-wall insulated cable for the locomotive comprises a conductor, wherein a halogen-free flame-retardant insulating layer is coated on the conductor, and a low-halogen flame-retardant sheath layer is coated on the outer surface of the halogen-free flame-retardant insulating layer.
Furthermore, the halogen-free flame-retardant insulating layer and the low-halogen flame-retardant sheath layer are formed by double-layer extrusion molding.
Further, the halogen-free flame-retardant insulating layer is formed by melting and extrusion molding of polyethylene, an antioxidant and high-temperature-resistant and oil-resistant rubber.
Further, the low-halogen flame-retardant sheath layer is formed by melting and extruding polyethylene, an antioxidant, halogen and high-temperature-resistant and oil-resistant rubber.
Furthermore, the thickness of the halogen-free flame-retardant insulating layer is consistent with that of the low-halogen flame-retardant sheath layer.
Further, the light transmittance of the halogen-free flame-retardant insulating layer and the low-halogen flame-retardant sheath layer is more than 80%.
Further, the smoke density of the halogen-free flame-retardant insulating layer and the low-halogen flame-retardant sheath layer is less than 20%.
The low-halogen thin-wall insulated cable for the locomotive has the beneficial effects that the thin-wall cable is manufactured by wrapping a conductor by the halogen-free flame-retardant insulating layer and the low-halogen flame-retardant sheath layer, so that the flame retardant property of the thin-wall insulated cable is effectively improved, the high-temperature-resistant oil-resistant rubber is added into the halogen-free flame-retardant insulating layer and the low-halogen flame-retardant sheath layer, so that the oil resistance of the cable is improved, the flexibility of the cable is improved, the cable has better low-temperature resistance, the light transmittance of the thin-wall cable is improved by the low-halogen flame-retardant sheath layer, the smoke density of the thin-wall cable is ensured to be lower than 20%, and the performance of the cable is.
Drawings
The invention is further illustrated with reference to the following figures and examples.
Fig. 1 is a schematic structural view of the present invention.
In the figure, 1 is a conductor, 2 is a halogen-free flame-retardant insulating layer, and 3 is a low-halogen flame-retardant sheath layer.
Detailed Description
As shown in fig. 1, which is a schematic structural diagram of the present invention, a low-halogen thin-walled insulated cable for a locomotive includes a conductor 1, wherein the conductor 1 is coated with a halogen-free flame-retardant insulating layer 2, and the exterior of the halogen-free flame-retardant insulating layer 2 is coated with a low-halogen flame-retardant sheath layer 3.
As shown in fig. 1, the halogen-free flame-retardant insulating layer 2 and the low-halogen flame-retardant sheath layer 3 are formed by double extrusion molding.
As shown in figure 1, the halogen-free flame-retardant insulating layer 2 is formed by melting and extrusion molding of polyethylene, an antioxidant and high-temperature-resistant and oil-resistant rubber.
As shown in figure 1, the low-halogen flame-retardant sheath 3 is formed by melting and extruding polyethylene, antioxidant, halogen and high-temperature-resistant and oil-resistant rubber.
As shown in fig. 1, the thickness of the halogen-free flame-retardant insulating layer 2 and the thickness of the low-halogen flame-retardant sheath layer 3 are consistent.
As shown in fig. 1, the light transmittance of the halogen-free flame-retardant insulating layer 2 and the low-halogen flame-retardant sheath layer 3 is greater than 80%.
As shown in fig. 1, the smoke density of the halogen-free flame-retardant insulating layer 2 and the low-halogen flame-retardant sheath layer 3 is less than 20%.
The first embodiment is as follows:
in the extrusion molding process of the halogen-free flame-retardant insulating layer 2 and the low-halogen flame-retardant sheath layer 3, the antioxidant is added, so that the high-temperature resistance of the halogen-free flame-retardant insulating layer 2 and the low-halogen flame-retardant sheath layer 3 is improved, and the high-temperature resistance of the whole cable is further improved.
The second embodiment is as follows:
in the extrusion molding process of the halogen-free flame-retardant insulating layer 2 and the low-halogen flame-retardant sheath layer 3, the nanoscale high-temperature-resistant oil-resistant rubber is added, so that the oil resistance, flexibility and tensile strength of the cable are improved, and the low-temperature resistance of the cable is improved.
When the low-halogen flame-retardant cable is used, the thin-wall cable made by wrapping the conductor 1 by the halogen-free flame-retardant insulating layer 2 and the low-halogen flame-retardant sheath layer 3 effectively improves the flame retardant property of the thin-wall insulating cable, high-temperature-resistant oil-resistant rubber is added into the halogen-free flame-retardant insulating layer and the low-halogen flame-retardant sheath layer, the oil resistance of the cable is improved, the flexibility of the cable is improved, the cable has better low-temperature resistance, the light transmittance of the thin-wall cable is improved by the low-halogen flame-retardant sheath layer, the smoke density of the thin-wall cable is guaranteed to be lower than 20%, and the performance of the.
The foregoing description is intended to be illustrative rather than limiting, and it will be appreciated by those skilled in the art that many modifications, variations or equivalents may be made without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (7)
1. The low-halogen thin-wall insulated cable for the locomotive comprises a conductor (1) and is characterized in that a halogen-free flame-retardant insulating layer (2) is coated on the conductor (1), and a low-halogen flame-retardant sheath layer (3) is coated on the outer surface of the halogen-free flame-retardant insulating layer (2).
2. The thin-walled low-halogen insulated cable for locomotives according to claim 1, wherein the halogen-free flame-retardant insulating layer (2) and the low-halogen flame-retardant sheath layer (3) are formed by double extrusion and extrusion molding.
3. The low-halogen thin-wall insulated cable for the locomotive according to claim 1 or 2, wherein the halogen-free flame-retardant insulating layer (2) is formed by melt extrusion molding of polyethylene, an antioxidant and high-temperature-resistant and oil-resistant rubber.
4. A locomotive low-halogen thin-walled insulated cable according to claim 1, characterized in that said low-halogen flame-retardant sheath (3) layer is melt-extruded from polyethylene, antioxidant, halogen and high temperature resistant oil-resistant rubber.
5. The locomotive low-halogen thin-wall insulated cable according to claim 4, wherein the thickness of the halogen-free flame-retardant insulating layer (2) is consistent with that of the low-halogen flame-retardant sheath layer (3).
6. The locomotive low-halogen thin-wall insulated cable according to claim 1, wherein the light transmittance of the halogen-free flame-retardant insulating layer (2) and the low-halogen flame-retardant sheath layer (3) is greater than 80%.
7. The locomotive low-halogen thin-wall insulated cable according to claim 1 or 6, wherein the smoke density of the halogen-free flame-retardant insulating layer (2) and the low-halogen flame-retardant sheath layer (3) is less than 20%.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010841917.XA CN111916257A (en) | 2020-08-20 | 2020-08-20 | Low-halogen thin-wall insulated cable for locomotive |
| PCT/CN2021/103105 WO2022037264A1 (en) | 2020-08-20 | 2021-06-29 | Low-halogen thin wall insulated electrical cable for locomotive |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010841917.XA CN111916257A (en) | 2020-08-20 | 2020-08-20 | Low-halogen thin-wall insulated cable for locomotive |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111916257A true CN111916257A (en) | 2020-11-10 |
Family
ID=73278607
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010841917.XA Pending CN111916257A (en) | 2020-08-20 | 2020-08-20 | Low-halogen thin-wall insulated cable for locomotive |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN111916257A (en) |
| WO (1) | WO2022037264A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113628802A (en) * | 2021-08-11 | 2021-11-09 | 铜陵铜泉线缆科技有限公司 | New energy automobile fills composite cable for electric pile with dampproofing protect function |
| WO2022037264A1 (en) * | 2020-08-20 | 2022-02-24 | 中车戚墅堰机车有限公司 | Low-halogen thin wall insulated electrical cable for locomotive |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103106979A (en) * | 2013-03-04 | 2013-05-15 | 无锡市沪安电线电缆有限公司 | Mobile rubber jacketed flexible cable for mine |
| JP5972836B2 (en) * | 2013-06-14 | 2016-08-17 | 日立金属株式会社 | Non-halogen flame retardant wire cable |
| CN103426541B (en) * | 2013-07-31 | 2016-07-06 | 江苏河阳线缆有限公司 | low-smoke low-halogen flame-retardant power cable |
| JP2020053216A (en) * | 2018-09-26 | 2020-04-02 | 日立金属株式会社 | Insulated wire |
| CN111916257A (en) * | 2020-08-20 | 2020-11-10 | 中车戚墅堰机车有限公司 | Low-halogen thin-wall insulated cable for locomotive |
| CN212380182U (en) * | 2020-08-20 | 2021-01-19 | 中车戚墅堰机车有限公司 | Low-halogen thin-wall insulated cable for locomotive |
-
2020
- 2020-08-20 CN CN202010841917.XA patent/CN111916257A/en active Pending
-
2021
- 2021-06-29 WO PCT/CN2021/103105 patent/WO2022037264A1/en active Application Filing
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022037264A1 (en) * | 2020-08-20 | 2022-02-24 | 中车戚墅堰机车有限公司 | Low-halogen thin wall insulated electrical cable for locomotive |
| CN113628802A (en) * | 2021-08-11 | 2021-11-09 | 铜陵铜泉线缆科技有限公司 | New energy automobile fills composite cable for electric pile with dampproofing protect function |
| CN113628802B (en) * | 2021-08-11 | 2023-02-24 | 铜陵铜泉线缆科技有限公司 | New energy automobile fills composite cable for electric pile with dampproofing protect function |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2022037264A1 (en) | 2022-02-24 |
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