CN201689725U - Low-smoke zero-halogen electric cable - Google Patents
Low-smoke zero-halogen electric cable Download PDFInfo
- Publication number
- CN201689725U CN201689725U CN2010202136751U CN201020213675U CN201689725U CN 201689725 U CN201689725 U CN 201689725U CN 2010202136751 U CN2010202136751 U CN 2010202136751U CN 201020213675 U CN201020213675 U CN 201020213675U CN 201689725 U CN201689725 U CN 201689725U
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- Prior art keywords
- low
- electric cable
- halogen
- smoke
- smoke zero
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Abstract
The utility model relates to an electric cable, in particular to a low-smoke zero-halogen electric cable free from the risk of producing thick toxic smoke under high-temperature conditions. The electric cable comprises an electric cable core wire composed of lead wires covered with polythene insulation layers, and a low-smoke zero-halogen flame retardant protective layer covering the electric cable core wire, wherein, each lead wire is covered with a mica tape, each mica tape is covered with a polythene insulation layer, and a glass fiber protective layer is arranged inside the low-smoke zero-halogen flame retardant protective layer. When used in such densely-populated places as subways and markets, the low-smoke zero-halogen electric cable, of which the improved insulation, heat insulation and fire resistant properties are ensured by the use of mica, asbestos and glass fiber respectively, can guarantee flame retardant and electrical performances as required by safety in case of 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 glass fibre sheath in the low-smoke non-halogen flame-retardant sheath.
Between described glass fibre 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 glass fibre 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 low-smoke halogen-free 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 glass fibre sheath 2 in low-smoke non-halogen flame-retardant sheath 1; Between glass fibre 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 glass fibre 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 low-smoke halogen-free 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 glass fibre sheath in the low-smoke non-halogen flame-retardant sheath.
2. a kind of low-smoke halogen-free cable according to claim 1 is characterized in that: between described glass fibre sheath and the cable core, be filled with asbestos packing.
3. a kind of low-smoke halogen-free 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 |
|---|---|---|---|
| CN2010202136751U CN201689725U (en) | 2010-05-28 | 2010-05-28 | Low-smoke zero-halogen electric cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202136751U CN201689725U (en) | 2010-05-28 | 2010-05-28 | Low-smoke zero-halogen electric cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201689725U true CN201689725U (en) | 2010-12-29 |
Family
ID=43378005
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202136751U Expired - Fee Related CN201689725U (en) | 2010-05-28 | 2010-05-28 | Low-smoke zero-halogen electric cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201689725U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104575794A (en) * | 2013-10-13 | 2015-04-29 | 宁夏海洋线缆有限公司 | Cable with excellent heat-insulating property |
| CN105448398A (en) * | 2015-12-30 | 2016-03-30 | 合肥星辰电线电缆股份有限公司 | Automobile heat-resistant low voltage cable |
-
2010
- 2010-05-28 CN CN2010202136751U patent/CN201689725U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104575794A (en) * | 2013-10-13 | 2015-04-29 | 宁夏海洋线缆有限公司 | Cable with excellent heat-insulating property |
| CN105448398A (en) * | 2015-12-30 | 2016-03-30 | 合肥星辰电线电缆股份有限公司 | Automobile heat-resistant low voltage cable |
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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 |
Granted publication date: 20101229 Termination date: 20180528 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |