CN202549400U - High temperature resistance detection instrument cable for intrinsically safe system - Google Patents
High temperature resistance detection instrument cable for intrinsically safe system Download PDFInfo
- Publication number
- CN202549400U CN202549400U CN 201220129931 CN201220129931U CN202549400U CN 202549400 U CN202549400 U CN 202549400U CN 201220129931 CN201220129931 CN 201220129931 CN 201220129931 U CN201220129931 U CN 201220129931U CN 202549400 U CN202549400 U CN 202549400U
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- cable
- high temperature
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Abstract
The utility model discloses a high temperature resistance detection instrument cable for an intrinsically safe system, which comprises four twisted-pair conductor groups; the four twisted-pair conductor groups are arranged in a square shape; the four twisted-pair conductor groups are respectively formed by stranding two cable conductors coated with insulating layers; each pair of stranded cable conductors are coated with a separated shielding layer; a wrapping tape layer, a shielding layer, an inner jacket, an armor layer and an outer sheath layer are sequentially coated outside the four twisted-pair conductor groups from inside to outside; drainage threads are uniformly distributed inside the separated shielding layers of the twisted-pair conductor groups; the drainage thread of each twisted-pair conductor group is positioned at the position closest to one cable conductor of the adjacent twisted-pair conductor group; and a drainage thread is arranged between the wrapping tape layer and the shielding layer of each twisted-pair conductor group. The high temperature resistance detection instrument cable has simple structure and is convenient and rapid to manufacture; the flame retardance and the waterproofness of the high temperature resistance detection instrument cable are greatly improved; the drainage thread of each twisted-pair conductor group is positioned at the position closest to one cable conductor of the adjacent twisted-pair conductor group and the separated shielding layers are added, so that the anti-interference performance is greatly improved and the high temperature resistance detection instrument cable is suitable for places with dense population.
Description
Technical field
The utility model relates generally to field of cables, relates in particular to a kind of intrinsic safety system with high temperature resistant detecting instrument cable.
Background technology
Wires and cables industry is the second largest industry that China is only second to automobile industry, and product variety satisfies rate and domestic market occupation rate all above 90%.Worldwide, the Chinese electric wire gross output value has surpassed the U.S., becomes first in the world electric wire producing country.Be accompanied by Chinese wires and cables industry high speed development, creation of new enterprise quantity constantly rises, and industry overall technology level is largely increased.China's economic growth continuously and healthily; For cable products provides the huge market space, the temptation that Chinese market is strong makes the world all focus on Chinese market to sight; Reforming and opening up to the outside world short decades, the formed huge production capacity of Chinese cable manufacturing industry lets the world regard with special esteem.Along with the continuous expansion of industry sizes such as China Power industry, data communication industry, urban track traffic industry, car industry and shipbuilding, also will increase rapidly the demand of electric wire, following electric wire already also has huge development potentiality.
The application of electronic computer, instrument and meter is universal day by day, and people's awareness of safety constantly strengthens, and the performance and the environmental requirement of the cable supporting with it also improved constantly.Existing computer and instrument are high temperature resistant not high with fire resistance with cable, and the security reliability of cable is low under fire condition, and shielding properties and interference free performance are not high, are not suitable for as densely populated and higher to device security reliability requirement place.
Therefore, it is good to be badly in need of a kind of high temperature resistant, anti-flammability, shielding, anti-interference, and safe intrinsic safety system is with high temperature resistant detecting instrument cable.
The utility model content
The utility model purpose is exactly in order to remedy the defective of prior art, to provide a kind of intrinsic safety system with high temperature resistant detecting instrument cable.
The utility model is realized through following technical scheme:
Intrinsic safety system is with high temperature resistant detecting instrument cable; Comprise four pair twist conductor groups; Described four pair twist conductors are formed square arrangement; It is characterized in that: described four pair twist conductor groups are enclosed with all by the outside respectively that two cable conductors of insulating barrier are stranded to be constituted; Two cable conductor outsides after stranded are enclosed with individually shielded layer, and four pair twist conductor group outsides are enclosed with belting layer, screen, sheath, armour, external sheath layer from inside to outside successively, and the inboard of the individually shielded layer of described pair twist conductor group is evenly equipped with drainage thread; The drainage thread of each pair twist conductor group is positioned at apart from wherein position that cable conductor is nearest of adjacent pair twist conductor group, also is provided with a drainage thread between described belting layer and the screen.
Described individually shielded layer is a semiconductive shielding layer.
The direction of lay that is two cable conductors in two conductor groups that diagonal arranges in described four conductor groups is identical, and the direction of lay of two cable conductors in four conductor groups in adjacent two conductor groups is vertical each other.
Described screen adopts aluminium-plastic tape overlapping wrapped.
Described armour adopts the steel band braiding to coat.
Described cable conductor adopts bare copper wire.
The utility model has the advantages that:
The utility model is simple in structure, manufacturing is convenient; Its resistance to wear, anti-flammability, water proofing property improve greatly; The drainage thread of each pair twist conductor group is positioned at apart from wherein position that cable conductor is nearest of adjacent pair twist conductor group; And increased the individually shielded layer of one deck, and improved anti-interference greatly, be adapted at densely populated place and use.
Description of drawings
Fig. 1 is the structural representation of the utility model.
Embodiment
As shown in Figure 1; Intrinsic safety system is with high temperature resistant detecting instrument cable; Comprise four pair twist conductor groups; Four pair twist conductors are formed square arrangement, and four pair twist conductor groups are enclosed with all by the outside respectively that two cable conductors 1 of insulating barrier 2 are stranded to be constituted, and two cable conductor 1 outsides after stranded are enclosed with individually shielded layer 3; Four pair twist conductor group outsides are enclosed with belting layer 4, screen 5, sheath 6, armour 7, external sheath layer 8 from inside to outside successively; The inboard of the individually shielded layer 3 of pair twist conductor group is evenly equipped with drainage thread 9a, and the drainage thread 9a of each pair twist conductor group is positioned at apart from wherein position that cable conductor is nearest of adjacent pair twist conductor group, also is provided with a drainage thread 9b between 4 layers of bands and the screen 5.
Individually shielded layer 3 is a semiconductive shielding layer.
The direction of lay that is two cable conductors in two conductor groups that diagonal arranges in four conductor groups is identical, and the direction of lay of two cable conductors in four conductor groups in adjacent two conductor groups is vertical each other.
Screen 5 adopts aluminium-plastic tape overlapping wrapped.
Armour 7 adopts the steel band braiding to coat.
Cable conductor 1 adopts bare copper wire.
Claims (6)
1. an intrinsic safety system is with high temperature resistant detecting instrument cable; Comprise four pair twist conductor groups; Described four pair twist conductors are formed square arrangement; It is characterized in that: described four pair twist conductor groups are enclosed with all by the outside respectively that two cable conductors of insulating barrier are stranded to be constituted; Two cable conductor outsides after stranded are enclosed with individually shielded layer, and four pair twist conductor group outsides are enclosed with belting layer, screen, sheath, armour, external sheath layer from inside to outside successively, and the inboard of the individually shielded layer of described pair twist conductor group is evenly equipped with drainage thread; The drainage thread of each pair twist conductor group is positioned at apart from wherein position that cable conductor is nearest of adjacent pair twist conductor group, also is provided with a drainage thread between described belting layer and the screen.
2. intrinsic safety system according to claim 1 is characterized in that with high temperature resistant detecting instrument cable: described individually shielded layer is semiconductive shielding layer.
3. intrinsic safety system according to claim 1 is with high temperature resistant detecting instrument cable; It is characterized in that: the direction of lay that is two cable conductors in two conductor groups that diagonal arranges in described four conductor groups is identical, and the direction of lay of two cable conductors in four conductor groups in adjacent two conductor groups is vertical each other.
4. intrinsic safety system according to claim 1 is characterized in that with high temperature resistant detecting instrument cable: described screen adopts aluminium-plastic tape overlapping wrapped.
5. intrinsic safety system according to claim 1 is characterized in that with high temperature resistant detecting instrument cable: described armour adopts the steel band braiding to coat.
6. intrinsic safety system according to claim 1 is characterized in that with high temperature resistant detecting instrument cable: described cable conductor adopts bare copper wire.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220129931 CN202549400U (en) | 2012-03-30 | 2012-03-30 | High temperature resistance detection instrument cable for intrinsically safe system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220129931 CN202549400U (en) | 2012-03-30 | 2012-03-30 | High temperature resistance detection instrument cable for intrinsically safe system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202549400U true CN202549400U (en) | 2012-11-21 |
Family
ID=47169993
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220129931 Expired - Fee Related CN202549400U (en) | 2012-03-30 | 2012-03-30 | High temperature resistance detection instrument cable for intrinsically safe system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202549400U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103928147A (en) * | 2014-03-26 | 2014-07-16 | 安徽长风电缆集团有限公司 | Waterproof fluorescent cable for underground roadway |
| CN103928101A (en) * | 2014-03-26 | 2014-07-16 | 安徽长风电缆集团有限公司 | Anti-static and inflaming-retarding flexible cable for computers |
-
2012
- 2012-03-30 CN CN 201220129931 patent/CN202549400U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103928147A (en) * | 2014-03-26 | 2014-07-16 | 安徽长风电缆集团有限公司 | Waterproof fluorescent cable for underground roadway |
| CN103928101A (en) * | 2014-03-26 | 2014-07-16 | 安徽长风电缆集团有限公司 | Anti-static and inflaming-retarding flexible cable for computers |
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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: 20121121 Termination date: 20180330 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |