CN201689713U - Electric cable - Google Patents
Electric cable Download PDFInfo
- Publication number
- CN201689713U CN201689713U CN2010202136925U CN201020213692U CN201689713U CN 201689713 U CN201689713 U CN 201689713U CN 2010202136925 U CN2010202136925 U CN 2010202136925U CN 201020213692 U CN201020213692 U CN 201020213692U CN 201689713 U CN201689713 U CN 201689713U
- Authority
- CN
- China
- Prior art keywords
- electric cable
- free
- smoke halogen
- low smoke
- coated
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model relates to an electric cable, in particular to a low smoke halogen-free electric cable capable of preventing from generating high-risk smoke and high toxicity in high temperature, and is packed with a low smoke halogen-free flame-retardant protecting layer outside an electric cable core wire which is formed by guiding wires which are coated with polyethylene insulating layers, wherein the guiding wires are coated with mica tapes, the polyethylene insulating layers are coated above the mica tapes, and the low smoke halogen-free electric cable is provided with a non-woven fabric protecting layer in the low smoke halogen-free flame-retardant protecting layer. The low smoke halogen-free electric cable uses mica to strengthen a series of strengthening measures, such as insulating, asbestos insulation and non-woven fabric fire protection and the like, obtains a low smoke halogen-free safe electric cable, which can be used in densely populated places which are metros and emporiums and the like, and can guarantee flame retardant performance and electrical performance when being burnt by open fire.
Description
Technical field:
The utility model relates to a kind of cable, particularly a kind ofly prevents from high temperature to produce height and is fuming and highly toxic low-smoke halogen-free cable.
Background technology:
Existing cable all is to make according to traditional structural materials, and its purpose is just in order to conduct electricity function such as transmission.But since now to the application of cable more and more widely, so the occasion of utilization is also more and more, so just must apply to special cable for some special occasions.Low-smoke halogen-free polyolefin be a kind of be matrix with the polyethylene; to be mediated in the polyethylene matrix by a large amount of magnesium hydroxides or aluminium hydroxide that EVA (ethylene-vinyl acetate pass polymers) activated; utilize when hydroxide is burned to be heated; resolve into metal oxide and water; carry out fire-retardant cable insulation protective material to adopt the heat absorption and the method for metal oxide oxygen barrier; but in short circuit accident; the high heat of the high temperature of moment will be destroyed, and the time there is the height highly toxic drawback of being fuming in these flame-retardant electric wire and cables in burning.
Summary of the invention:
The purpose of this utility model is provided at a kind of low smoke and zero halogen safety cable that densely populated place such as subway, market uses just in order to solve the deficiencies in the prior art.
The utility model is realized by following technological means:
A kind of low-smoke halogen-free cable of the present utility model is outside the cable core that the lead that is coated with polyethylene layer is formed, and is surrounded by a low-smoke non-halogen flame-retardant sheath.Be coated with mica tape on the described lead, polyethylene layer is coated on the mica tape; Described low-smoke halogen-free cable is provided with a nonwoven fabrics sheath in the low-smoke non-halogen flame-retardant sheath.
Between described nonwoven fabrics sheath and the cable core, be filled with asbestos packing.
Described low-smoke non-halogen flame-retardant sheath adopts the polyolefine material of cross-linking radiation.
Low-smoke halogen-free cable of the present utility model, adopt a series of enhancements such as mica reinforced insulation, asbestos insulation and nonwoven fabrics fire prevention, obtains a kind of can be in subway, market etc. densely populated place use a kind of can guarantee the low smoke and zero halogen safety cable of fire resistance and electric property when being burnt by naked light.
Description of drawings:
Fig. 1 is the utility model structural representation.
Embodiment:
With reference to the accompanying drawings, a kind of cable of the present utility model is outside the cable core that the lead 6 that is coated with polyethylene layer 4 is formed, and is surrounded by a low-smoke non-halogen flame-retardant sheath 1.Be coated with mica tape 5 on the lead 6, polyethylene layer 4 is coated on the mica tape 5; Low-smoke halogen-free cable is provided with a nonwoven fabrics sheath 2 in low-smoke non-halogen flame-retardant sheath 1; Between nonwoven fabrics sheath 2 and the cable core, be filled with asbestos packing 3; Low-smoke non-halogen flame-retardant sheath 1 adopts the polyolefine material of cross-linking radiation.
During enforcement, for preventing polyethylene layer 4 early failures, the surface of being close to lead 6 coats 5 layers of mica tapes, can improve the insulation and the heatproof intensity of cable core polyethylene layer 4; Be filled in the heat-insulating material asbestos 3 between the cable core, can effectively completely cut off between the cable core and the bidirectional cooling of cable core between cable sheath; Tightly be coated on the fire-proof and thermal-insulation effect of the nonwoven fabrics sheath 2 of asbestos 3 fillers outsides, both can have stoped fire to burn cable, can support the adiabatic function of asbestos 3 fillers again effectively, use and reach the purpose of this utility model.
Although it is pointed out that here the utility model is described in detail, with regard to this area staff, the similar modification of the class Sihe of making on this basis all should belong to the utility model protection range.
Claims (3)
1. a cable is outside the cable core that the lead that is coated with polyethylene layer is formed, and is surrounded by a low-smoke non-halogen flame-retardant sheath, and it is characterized in that: be coated with mica tape on the described lead, polyethylene layer is coated on the mica tape; Described low-smoke halogen-free cable is provided with a nonwoven fabrics sheath in the low-smoke non-halogen flame-retardant sheath.
2. a kind of cable according to claim 1 is characterized in that: between described nonwoven fabrics sheath and the cable core, be filled with asbestos packing.
3. a kind of cable according to claim 1 is characterized in that: described low-smoke non-halogen flame-retardant sheath adopts the polyolefine material of cross-linking radiation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202136925U CN201689713U (en) | 2010-05-28 | 2010-05-28 | Electric cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202136925U CN201689713U (en) | 2010-05-28 | 2010-05-28 | Electric cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201689713U true CN201689713U (en) | 2010-12-29 |
Family
ID=43377993
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202136925U Expired - Fee Related CN201689713U (en) | 2010-05-28 | 2010-05-28 | Electric cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201689713U (en) |
-
2010
- 2010-05-28 CN CN2010202136925U patent/CN201689713U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101229 Termination date: 20180528 |