CN201812510U - Signal transmission electric cable for underground voice broadcasting system - Google Patents
Signal transmission electric cable for underground voice broadcasting system Download PDFInfo
- Publication number
- CN201812510U CN201812510U CN2010202922449U CN201020292244U CN201812510U CN 201812510 U CN201812510 U CN 201812510U CN 2010202922449 U CN2010202922449 U CN 2010202922449U CN 201020292244 U CN201020292244 U CN 201020292244U CN 201812510 U CN201812510 U CN 201812510U
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- China
- Prior art keywords
- cable
- signal transmission
- cable core
- wire cores
- flame
- 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 provides a signal transmission electric cable for an underground voice broadcasting system, and belongs to the technical field of electric cables. The electric cable comprises a cable core and a sheath, and is characterized in that the cable core is twisted with two insulated wire cores and filler to form the cable, wherein, the filler adopts flame-retardant glass fiber filling ropes; the flame-retardant glass fiber filling ropes are filled in gaps of the insulated wire cores; the cable core is wrapped with a polyethylene polyester belt isolated layer; the isolated layer is wrapped with a tinned copper wire shielded layer; the blue flame-retardant polyvinyl fluoride sheath is extruded on the shielded layer; the insulated wire cores are formed by extruding insulated layers on conductors; the conductors adopt stranded tinned oxygen-free copper wires; and the insulated layers are made of high density polyethylene insulating material. The electric cable has the advantages of reasonable and simple structure, little signal attenuation, high anti-jamming performance, rapid, accurate, steady and reliable signal transmission, high anti-explosion performance, flame retardancy, no secondary combustion during combustion, and good mechanical performance, is easy for production and manufacture and is suitable for being used in signal transmission lines of the underground voice broadcasting system.
Description
Technical field
The utility model relates to a kind of structure of cable, relates in particular to the structure of down-hole voice broadcast service system with cable, belongs to the cable technology field.
Background technology
Along with The development in society and economy, mining area safety consciousness constantly strengthens, the miner is to the continuous growth of inspirit culture demand, colliery, metallurgy, mine industry imagination are installed the dedicated broadcast stereo set and are improved safe production awareness, enrich worker's culture life, but the normal signal cable that uses can not satisfy the demands at present, is badly in need of a kind of special signal cable that can be supporting with it of exploitation.
The utility model content
The purpose of this utility model just provides the fast down-hole voice broadcast service system signal-transmitting cable of transmission and reliable and stable, good flame retardation effect, explosion-proof performance index height, strong anti-interference performance of a kind of signal.
The purpose of this utility model is to realize like this, down-hole voice broadcast service system signal-transmitting cable, comprise cable core and sheath, it is characterized in that described cable core thoroughly does away with edge core and the stranded stranding of inserts by two, described inserts is the combustion-proof glass fiber gasket for packing, and the combustion-proof glass fiber gasket for packing is filled in the insulated wire cores slit, wrapped polyethylene polyester band separator on cable core, wrapped tinned copper wire screen on separator extrudes blue look flame-proof polyvinyl chloride sheath on screen.
Described insulated wire cores is that the extruded insulation layer constitutes on conductor, and described conductor is the zinc-plated copper free wire of bundle strand type, and insulating barrier is the high density polyethylene (HDPE) Insulation Material.
The utility model is rational in infrastructure simply, manufactures easily, and signal attenuation is little, and strong anti-interference performance has signal and transmits quick, accurate, stable, reliable.2 one of thoroughly doing away with in the edge core are audio signal wire, and another root is a power line, adopt concentric type to form product with compact structure jointly.The explosion-proof performance of cable is good, and fire-retardant and burning the time is not prolonged combustion, and the good mechanical performance is arranged, and is applicable to that the signal transmission line in the voice broadcast service system of down-hole uses.
Description of drawings
Fig. 1 is a structural representation of the present utility model;
Among the figure: 1-conductor, 2-insulating barrier, 3-inserts, 4-separator, 5-screen, 6-sheath.
Embodiment
Claims (2)
1. down-hole voice broadcast service system signal-transmitting cable, comprise cable core and sheath, it is characterized in that described cable core thoroughly does away with edge core and the stranded stranding of inserts by two, described inserts is the combustion-proof glass fiber gasket for packing, the combustion-proof glass fiber gasket for packing is filled in the insulated wire cores slit, wrapped polyethylene polyester band separator on cable core, wrapped tinned copper wire screen on separator extrudes blue look flame-proof polyvinyl chloride sheath on screen.
2. voice broadcast service system signal-transmitting cable in down-hole according to claim 1 is characterized in that described insulated wire cores constitutes for extruded insulation layer on conductor, and described conductor is the zinc-plated copper free wire of bundle strand type, and insulating barrier is the high density polyethylene (HDPE) Insulation Material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202922449U CN201812510U (en) | 2010-08-09 | 2010-08-09 | Signal transmission electric cable for underground voice broadcasting system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202922449U CN201812510U (en) | 2010-08-09 | 2010-08-09 | Signal transmission electric cable for underground voice broadcasting system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201812510U true CN201812510U (en) | 2011-04-27 |
Family
ID=43895449
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202922449U Expired - Fee Related CN201812510U (en) | 2010-08-09 | 2010-08-09 | Signal transmission electric cable for underground voice broadcasting system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201812510U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102915797A (en) * | 2012-10-29 | 2013-02-06 | 常州瑞通新型线材有限公司 | Lateral pressure-resistant audio connecting wire |
| CN104464928A (en) * | 2014-12-12 | 2015-03-25 | 宿州永通电缆有限公司 | Fire-resistant five-core cable |
| CN104464918A (en) * | 2014-12-12 | 2015-03-25 | 宿州永通电缆有限公司 | Cable for coal mine monitoring |
| CN105304204A (en) * | 2014-05-29 | 2016-02-03 | 常州市盈顺电子有限公司 | Bend-resistant railway signal cable |
-
2010
- 2010-08-09 CN CN2010202922449U patent/CN201812510U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102915797A (en) * | 2012-10-29 | 2013-02-06 | 常州瑞通新型线材有限公司 | Lateral pressure-resistant audio connecting wire |
| CN105304204A (en) * | 2014-05-29 | 2016-02-03 | 常州市盈顺电子有限公司 | Bend-resistant railway signal cable |
| CN104464928A (en) * | 2014-12-12 | 2015-03-25 | 宿州永通电缆有限公司 | Fire-resistant five-core cable |
| CN104464918A (en) * | 2014-12-12 | 2015-03-25 | 宿州永通电缆有限公司 | Cable for coal mine monitoring |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110427 Termination date: 20110809 |