CN203433876U - Low-smoke halogen-free control cable - Google Patents
Low-smoke halogen-free control cable Download PDFInfo
- Publication number
- CN203433876U CN203433876U CN201320512255.7U CN201320512255U CN203433876U CN 203433876 U CN203433876 U CN 203433876U CN 201320512255 U CN201320512255 U CN 201320512255U CN 203433876 U CN203433876 U CN 203433876U
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- low
- shielding layer
- smoke
- control cables
- zero halogen
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Abstract
The utility model discloses a low-smoke halogen-free control cable, the structure of which includes at least one pair-twisted cable core group (1), a filling material (7), an external shielding layer (6) and a protective-sleeve layer (9) from inside to outside, wherein each pair-twisted cable core group (1) includes two conductors (2) provided with insulators (3). The cable is characterized in that the insulators (3), the filling material (7) and the protective-sleeve layer (9) are all made of a low-smoke halogen-free material. Each insulator (3) is also covered with a semiconductive shielding layer (4). An oxygen isolation belt layer (8) is arranged between the external shielding layer (6) and the external protective sleeve (9). The low-smoke halogen-free control cable has the characteristics of being high in electromagnetic-interference resistant capability, stable in signal transmission, high-temperature resistant, great in low-smoke effect and low in pollution and the like.
Description
Technical field
The utility model relates to a kind of cable, especially a kind of low smoke and zero halogen control cables.
Background technology
Along with developing rapidly of national economy, control cables is widely used in nuclear power station, subway station, telephone exchange and computer controlling center, skyscraper building, hotel, TV and Radio Service, important military installations, oil platform etc., and personnel are more concentrated, the place that atmospheric density is low, people are more and more higher to the quality requirement of control cables.General control cable anti-electromagnetic interference capability is poor, and signal transmission is unstable, and general control cable is long service time one, and wire rod is easily aging, and resistance to elevated temperatures reduces, and easily catches fire.Existing cable, conventionally adopt Halogen material as PVC insulating barrier, restrictive coating, its structure is not tight, once breaking out of fire BLV cable fire can produce a large amount of dense smoke, rescue personnel and the disaster-stricken common people are often smoked by smog, even death by suffocation, makes rescue work be difficult to carry out, and rescue efficiency is low.Meanwhile, the burning meeting atmosphere pollution of Halogen material.
Utility model content
The technical problems to be solved in the utility model is to provide that a kind of anti-electromagnetic interference capability is strong, stable signal transmission, high temperature resistant, low cigarette are effective, pollute little halogen-free low smoke control cable.
For solving the problems of the technologies described above, technical solution adopted in the utility model is as follows:
Low smoke and zero halogen control cables, in structure, comprise successively from inside to outside at least one group of pair twist core group, filler, outer shielding layer and restrictive coating, wherein, every group of pair twist core group comprises that two with the conductor of insulator, described insulator is that flame-retardant low-smoke halogen-free elastic material is made, this insulator is also enclosed with semiconductive shielding layer outward, and this semiconductive shielding layer is outside equipped with internal shield, the wrapped stranding of conductor that this internal shield has insulator and semiconductive shielding layer by two surfaces; Described filler adopts some pp ropes to fill, and this pp rope is made by low smoke and zero halogen pp material; Between described outer shielding layer and restrictive coating, be provided with oxygen barrier belt; This restrictive coating is made by low-smoke non-halogen flame-retardant TPE material, and described oxygen barrier belt adopts low-smoke bittern-free highly fire-proof glass fibre and polypropylene to make.
As a kind of optimal technical scheme of the present utility model, described pair twist core group has three groups, and three groups of pair twist core groups become 120 ° of uniform strandings of angle by cross section.
As a kind of optimal technical scheme of the present utility model, described semiconductive shielding layer is polypropylene layer.
As a kind of optimal technical scheme of the present utility model, described internal shield is aluminium-plastic tape.
As a kind of optimal technical scheme of the present utility model, described outer shielding layer is copper strips lapping layer.
As a kind of optimal technical scheme of the present utility model, described oxygen barrier belt surface scribbles a large amount of AL (OH)
3.
The beneficial effect that adopts technique scheme to produce is:
The utility model increases semiconductive shielding layer outward by the insulating barrier at every conductor, make between inner two conductors of pair twist core group and the enhancing of the antijamming capability between pair twist core group, improved the anti-electromagnetic interference capability without smoke low-halogen control cables, made control cables signal transmission more stable.By many group pair twist core groups and outer shielding layer between be provided with the some pp that made by low smoke and zero halogen pp material and restrict, the insulator that adopts flame-retardant low-smoke halogen-free elastic material to make, the restrictive coating that employing is made by low-smoke non-halogen flame-retardant TPE material, make cable have high temperature resistant, high flame retardant, low cigarette effective, pollute the features such as little.By be provided with surface between outer shielding layer and oversheath, scribble and scribble in a large number a large amount of AL (OH)
3deng the oxygen barrier belt of fire retardant, even if cable fire, because oxygen barrier band has completely cut off entering of air, finally makes soon burned flame reach from the object of putting out.
Accompanying drawing explanation
Fig. 1 is the structural representation of an embodiment of the utility model.
In figure: 1, pair twist core group; 2, conductor; 3, insulator; 4, semiconductive shielding layer; 5, internal shield; 6, outer shielding layer; 7, filler; 8, oxygen barrier belt; 9, restrictive coating.
Embodiment
Referring to accompanying drawing, specific embodiment of the utility model, adopting circle copper product is conductor 2, its outer surface extrudes the insulator 3 of being made by flame-retardant low-smoke halogen-free elastic material, outside insulator 3, extrude again the semiconductive shielding layer 4 that one deck is made by polypropylene shielding material, semiconductive shielding layer 4 is outer is internal shield 5, and internal shield 5 is by two wrapped strandings of conductor 2.Internal shield 5 is aluminium-plastic tape.Every two conductors (2) with insulator 3 and semiconductive shielding layer 4 form one group of pair twist core group 1 with internal shield 5.Three groups of pair twist core groups 1 are 120 ° of uniform strandings of angle by cross section, between many group pair twist core groups 1 and outer shielding layer 6, be provided with filler 7, filler 7, for the some pp ropes of being made by low smoke and zero halogen pp material form, is outer shielding layer 6 outside pp rope, and outer shielding layer 6 forms by copper strips is wrapped.Between outer shielding layer 6 and restrictive coating 9, be provided with oxygen barrier belt 8, oxygen barrier belt 8 adopts low-smoke bittern-free highly fire-proof glass fibre and polypropylene to make, and on surface, scribbles a large amount of AL (OH)
3.Restrictive coating 9 is made by low-smoke non-halogen flame-retardant TPE material.
The utility model, owing to adopting three layers of shielding construction of semiconductive shielding layer 4, internal shield 5 and outer shielding layer 6, has significantly improved cable anti-electromagnetic interference capability, stable signal transmission.By be provided with the filler 7 of the some pp rope shapes of being made by low smoke and zero halogen pp material between pair twist core group 1 and outer shielding layer 6, the insulator 3 that adopts flame-retardant low-smoke halogen-free elastic material to make, the restrictive coating 9 that employing is made by low-smoke non-halogen flame-retardant TPE material, make cable have high temperature resistant, high flame retardant, low cigarette effective, pollute the features such as little.
By be provided with surface between outer shielding layer 6 and restrictive coating 9, scribble and scribble in a large number a large amount of AL (OH)
3deng the oxygen barrier belt 8 of fire retardant, even if cable fire, because oxygen barrier belt 8 has completely cut off entering of air, finally makes soon burned flame reach from the object of putting out.
Foregoing description only proposes as the enforceable technical scheme of the utility model, not as the Single restriction condition to its technical scheme itself.
Claims (6)
1. low smoke and zero halogen control cables, in structure, comprise successively from inside to outside at least one group of pair twist core group (1), filler (7), outer shielding layer (6) and restrictive coating (9), wherein, every group of pair twist core group (1) comprises two conductors with insulator (3) (2), it is characterized in that: described insulator (3) is made for flame-retardant low-smoke halogen-free elastic material, the outer semiconductive shielding layer (4) that is also enclosed with of this insulator (3), this semiconductive shielding layer (4) is outside equipped with internal shield (5), this internal shield (5) has two surfaces the wrapped stranding of conductor (2) of insulator (3) and semiconductive shielding layer (4), described filler (7) adopts some pp ropes to fill, and this pp rope is made by low smoke and zero halogen pp material, between described outer shielding layer (6) and restrictive coating (9), be provided with oxygen barrier belt (8), this restrictive coating (9) is made by low-smoke non-halogen flame-retardant TPE material, and described oxygen barrier belt (8) adopts low-smoke bittern-free highly fire-proof glass fibre and polypropylene to make.
2. low smoke and zero halogen control cables according to claim 1, is characterized in that: described pair twist core group (1) has three groups, and three groups of pair twist core groups become 120 ° of uniform strandings of angle by cross section.
3. low smoke and zero halogen control cables according to claim 1, is characterized in that: described semiconductive shielding layer (4) is polypropylene layer.
4. low smoke and zero halogen control cables according to claim 1, is characterized in that: described internal shield (5) is aluminium-plastic tape.
5. low smoke and zero halogen control cables according to claim 1, is characterized in that: described outer shielding layer (6) is copper strips lapping layer.
6. low smoke and zero halogen control cables according to claim 1, is characterized in that: described oxygen barrier belt (8) surface-coated arranges aluminum hydroxide layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320512255.7U CN203433876U (en) | 2013-08-21 | 2013-08-21 | Low-smoke halogen-free control cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320512255.7U CN203433876U (en) | 2013-08-21 | 2013-08-21 | Low-smoke halogen-free control cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203433876U true CN203433876U (en) | 2014-02-12 |
Family
ID=50062901
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320512255.7U Expired - Lifetime CN203433876U (en) | 2013-08-21 | 2013-08-21 | Low-smoke halogen-free control cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203433876U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104766670A (en) * | 2015-03-25 | 2015-07-08 | 安徽幸福电器电缆有限公司 | Industrial insulation shielding power cable |
| CN105810351A (en) * | 2014-12-31 | 2016-07-27 | 安徽联嘉祥特种电缆有限公司 | Metro low frequency communication signal transmission cable and manufacturing method thereof |
-
2013
- 2013-08-21 CN CN201320512255.7U patent/CN203433876U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105810351A (en) * | 2014-12-31 | 2016-07-27 | 安徽联嘉祥特种电缆有限公司 | Metro low frequency communication signal transmission cable and manufacturing method thereof |
| CN104766670A (en) * | 2015-03-25 | 2015-07-08 | 安徽幸福电器电缆有限公司 | Industrial insulation shielding power cable |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140212 |
|
| CX01 | Expiry of patent term |