CN210896687U - Fireproof railway locomotive cable - Google Patents
Fireproof railway locomotive cable Download PDFInfo
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- CN210896687U CN210896687U CN201922013526.4U CN201922013526U CN210896687U CN 210896687 U CN210896687 U CN 210896687U CN 201922013526 U CN201922013526 U CN 201922013526U CN 210896687 U CN210896687 U CN 210896687U
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- cabling
- cable
- railway locomotive
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- wrapped
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Abstract
The utility model discloses a fire prevention railway locomotive cable, a serial communication port, include: a polyester tape is wrapped to form a cavity, a three-core cabling is arranged in the cavity, and the cabling pitch is not more than 20 times of the outer diameter of the cabling; the finished cable comprises a conductor and an insulating layer from inside to outside, the conductor is a tinned copper wire, an outer sheath layer is wrapped on the outer side of the polyester belt, and the outer sheath layer and the insulating layer are made of 105 ℃ irradiation crosslinking halogen-free low-smoke polyolefin materials resistant to ultralow temperature and mineral oil and fuel oil. The utility model provides a can accord with railway locomotive cable fire prevention requirement, and there is not steamed nontoxic low cigarette fire prevention railway locomotive cable of nai high microthermal temperature.
Description
Technical Field
The utility model belongs to the cable is known the field, concretely relates to fire prevention railway locomotive cable.
Background
The railway locomotive operates outdoors throughout the year, and needs to pass through areas with different temperatures and humidities, and meanwhile, in order to guarantee safe operation of the railway locomotive and prevent secondary disasters caused by urban rail electric line faults, the cable for the locomotive needs to meet the characteristic requirements of low smoke, zero halogen, no toxicity, high and low temperature resistance.
And the special design of fire prevention is also needed, and the fire of the railway locomotive can cause very serious personal and property loss during the operation. And is therefore very important for the design of railway cables.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a can accord with railway locomotive cable fire prevention requirement, and there is not steamed nontoxic low cigarette fire prevention railway locomotive cable of nai high microthermal.
In order to realize the utility model discloses an aim, the technical scheme who adopts is:
a fire-resistant railroad locomotive cable comprising:
a polyester tape is wrapped to form a cavity, a three-core cabling is arranged in the cavity, and the cabling pitch is not more than 20 times of the outer diameter of the cabling; the finished cable comprises a conductor and an insulating layer from inside to outside, the conductor is a tinned copper wire, an outer sheath layer is wrapped on the outer side of the polyester belt, and the outer sheath layer and the insulating layer are made of 105 ℃ irradiation crosslinking halogen-free low-smoke polyolefin materials resistant to ultralow temperature and mineral oil and fuel oil.
In a preferred embodiment of the present invention, the polyester tape is made of a non-hygroscopic transparent polyester tape.
In a preferred embodiment of the present invention, the three-core cabling is arranged in an equilateral triangle.
The beneficial effects of the utility model reside in that:
the utility model provides a can accord with railway locomotive cable fire prevention requirement, and there is not steamed nontoxic low cigarette fire prevention railway locomotive cable of nai high microthermal temperature.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Detailed Description
As shown in fig. 1, the fireproof railroad locomotive cable 100 includes a cavity 110a formed by wrapping a polyester tape 110, and the polyester tape 110 is made of a non-hygroscopic transparent polyester tape. Three- core cables 120, 130 and 140 are arranged in the cavity 110a, and the three- core cables 120, 130 and 140 are twisted in the right direction and arranged in the cavity 110a in an equilateral triangle manner. The cabling pitch of the individual cabling is not more than 20 times the outer diameter of the cabling.
The cabling 120, 130 and 140 comprises conductors 121, 131 and 141 and insulating layers 122, 132 and 142 from inside to outside, the conductors 121, 131 and 141 are 30/0.25mm tinned copper wires and meet 5 types of structures in a cable standard HD383, and the outer diameter of each insulating layer is 3.05 +/-0.1 mm.
In addition, the outer side of the polyester band 110 is wrapped with an outer sheath layer 150, and the outer diameter of the outer sheath layer 150 is 8.2 +/-0.2 mm.
And the outer sheath layer 150 and the insulating layers 122, 132 and 142 are made of 105 ℃ irradiation crosslinking halogen-free low-smoke polyolefin materials resistant to ultralow temperature, mineral oil and fuel oil so as to meet the requirements of EM-104 type and EI-109 type materials in EN 50264-1.
Because of possessing the above structure, the utility model has the advantages that:
meets the requirements of high voltage test (3.5KV,5min), and thermal insulation extension test (200 deg.C, 15min, 20N/cm)2) The test requirements of (1) and the acid and alkali resistance and the combustion test meet the requirements.
Claims (3)
1. A fire-resistant railroad locomotive cable, comprising:
a polyester tape is wrapped to form a cavity, a three-core cabling is arranged in the cavity, and the cabling pitch is not more than 20 times of the outer diameter of the cabling; the finished cable comprises a conductor and an insulating layer from inside to outside, the conductor is a tinned copper wire, an outer sheath layer is wrapped on the outer side of the polyester belt, and the outer sheath layer and the insulating layer are made of 105 ℃ irradiation crosslinking halogen-free low-smoke polyolefin materials resistant to ultralow temperature and mineral oil and fuel oil.
2. A fire-resistant railroad car cable as in claim 1, wherein the polyester tape is a non-hygroscopic polyester transparent tape.
3. A fire-resistant railroad car cable as in claim 1, wherein the three-core cabling is arranged in an equilateral triangle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922013526.4U CN210896687U (en) | 2019-11-20 | 2019-11-20 | Fireproof railway locomotive cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922013526.4U CN210896687U (en) | 2019-11-20 | 2019-11-20 | Fireproof railway locomotive cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210896687U true CN210896687U (en) | 2020-06-30 |
Family
ID=71316972
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922013526.4U Active CN210896687U (en) | 2019-11-20 | 2019-11-20 | Fireproof railway locomotive cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210896687U (en) |
-
2019
- 2019-11-20 CN CN201922013526.4U patent/CN210896687U/en active Active
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