CN211455352U - Low-smoke halogen-free flame-retardant fireproof cable - Google Patents
Low-smoke halogen-free flame-retardant fireproof cable Download PDFInfo
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- CN211455352U CN211455352U CN201922012486.1U CN201922012486U CN211455352U CN 211455352 U CN211455352 U CN 211455352U CN 201922012486 U CN201922012486 U CN 201922012486U CN 211455352 U CN211455352 U CN 211455352U
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- low smoke
- zero halogen
- cabling
- fireproof cable
- flame retardant
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Abstract
The utility model discloses a fire-retardant fireproof cable of low smoke and zero halogen, include: the outer side of the inner side of the oxygen isolation layer is respectively wrapped with a first ceramic tape and a second ceramic tape 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 cabling comprises a conductor, a mica tape and an insulating layer from inside to outside; the conductor is a bare copper wire; the outer side of the second ceramic belt is wrapped with an outer sheath layer. The utility model discloses a fire-retardant fireproof cable of low smoke and zero halogen can be effectively fire-retardant and prevent the toxic gas that produces after the burning to the injury of human body.
Description
Technical Field
The utility model belongs to cable preparation field, concretely relates to fire-retardant fireproof cable of low smoke and zero halogen.
Background
In the conventional PVC (polyvinyl chloride) electric wire, when a fire occurs, a PVC mixture is easily decomposed after being heated to release a large amount of highly toxic and corrosive HCL (hydrogen chloride) gas, and a large amount of highly toxic and dense smoke is generated, which causes significant life and property loss, and brings great difficulty to rescue work (such as big fire of korean subway). In order to avoid and reduce fire and secondary damage caused by the fire as much as possible, people find that the problem can be effectively solved by changing the outer layer material and the process used by the product through a great deal of research for more than ten years.
SUMMERY OF THE UTILITY MODEL
In order to overcome the above defects of the prior art, the present invention provides a low-smoke halogen-free flame-retardant fireproof cable.
In order to realize the utility model discloses an aim, the technical scheme who adopts is:
a low smoke zero halogen flame retardant fireproof cable comprising:
the outer side of the inner side of the oxygen isolation layer is respectively wrapped with a first ceramic tape and a second ceramic tape 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 cabling comprises a conductor, a mica tape and an insulating layer from inside to outside; the conductor is a bare copper wire; the outer side of the second ceramic belt is wrapped with an outer sheath layer.
In a preferred embodiment of the present invention, the mica tape is a refractory material.
In a preferred embodiment of the present invention, the insulating layer is made of cross-linked polyethylene.
In a preferred embodiment of the present invention, the oxygen-insulating layer is an inner protective layer filled with a low-smoke halogen-free oxygen-insulating material.
In a preferred embodiment of the present invention, the outer sheath layer is made of high flame retardant low smoke halogen-free polyolefin material.
In a preferred embodiment of the present invention, the three-core cabling is arranged in an equilateral triangle.
The invention has the beneficial effects that:
the utility model discloses a fire-retardant fireproof cable of low smoke and zero halogen can be effectively fire-retardant and prevent the toxic gas that produces after the burning to the injury of human body.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Detailed Description
As shown in fig. 1, the low smoke halogen-free flame retardant fireproof cable 100 includes an oxygen-insulating layer 110, and the oxygen-insulating layer 110 is specifically an inner sheath filled with a low smoke halogen-free oxygen-insulating material.
The oxygen barrier layer 110 is respectively wrapped with a first ceramic tape 120 and a second ceramic tape 130 made of flame retardant materials at the inner side 111 and the outer side 112 to form a cavity 110a, three- core cables 140, 150 and 160 are arranged in the cavity 110a, and the pitch of the cables 140, 150 and 160 is not more than 20 times of the outer diameter of the cables.
And the cabling 140, 150, 160 comprises conductors 141, 151, 161, mica tapes 142, 152, 162 and insulating layers 143, 153, 163 from inside to outside; the conductors 141, 151, 161 are 48/0.20mm bare copper wires and conform to the Class 5 structure of GB/T3956-2008(IEC60228Class 5).
The insulating layers 143, 153 and 163 are made of cross-linked polyethylene insulating materials, which meet the requirements of XLPE materials in GB/T9330.3-2008, and the insulating outer diameters of the insulating layers 143, 153 and 163 are 3.25 +/-0.15 mm.
The outer side 131 of the ceramic band 130 is wrapped with an outer sheath layer 170, the outer sheath layer 170 is made of high-flame-retardant low-smoke halogen-free polyolefin material, the requirements of WH1 section materials in GB/T19666-2005 are met, and the outer diameter of the outer sheath layer 170 is 12.2 +/-1.0 mm.
The utility model discloses a cable can satisfy bundling cable burning test and do not have experimental requirement of halogen.
Claims (6)
1. A low smoke zero halogen flame retardant fireproof cable is characterized by comprising:
the outer side of the inner side of the oxygen isolation layer is respectively wrapped with a first ceramic tape and a second ceramic tape 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 cabling comprises a conductor, a mica tape and an insulating layer from inside to outside; the conductor is a bare copper wire; the outer side of the second ceramic belt is wrapped with an outer sheath layer.
2. The low smoke, zero halogen, flame retardant, fire rated cable of claim 1 wherein the mica tape is a fire resistant material.
3. The low smoke zero halogen flame retardant fireproof cable of claim 1, wherein the insulating layer is a cross-linked polyethylene material.
4. The low smoke zero halogen flame retardant fireproof cable of claim 1, wherein the oxygen barrier is an inner sheath filled with a low smoke zero halogen oxygen barrier material.
5. The low smoke zero halogen flame retardant fireproof cable of claim 1, wherein the outer sheath layer is a high flame retardant low smoke zero halogen polyolefin material.
6. The low smoke zero halogen flame retardant fireproof cable of claim 1, wherein the three-core cabling is arranged in an equilateral triangle manner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922012486.1U CN211455352U (en) | 2019-11-20 | 2019-11-20 | Low-smoke halogen-free flame-retardant fireproof cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922012486.1U CN211455352U (en) | 2019-11-20 | 2019-11-20 | Low-smoke halogen-free flame-retardant fireproof cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211455352U true CN211455352U (en) | 2020-09-08 |
Family
ID=72315954
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922012486.1U Active CN211455352U (en) | 2019-11-20 | 2019-11-20 | Low-smoke halogen-free flame-retardant fireproof cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211455352U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117524570A (en) * | 2023-11-29 | 2024-02-06 | 温州网牌电线电缆有限公司 | High-temperature-resistant double-layer ceramic mica fireproof wire |
-
2019
- 2019-11-20 CN CN201922012486.1U patent/CN211455352U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117524570A (en) * | 2023-11-29 | 2024-02-06 | 温州网牌电线电缆有限公司 | High-temperature-resistant double-layer ceramic mica fireproof wire |
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