CN201421727Y - Anti-jamming observation and control cable used for DCS system - Google Patents
Anti-jamming observation and control cable used for DCS system Download PDFInfo
- Publication number
- CN201421727Y CN201421727Y CN2009200444539U CN200920044453U CN201421727Y CN 201421727 Y CN201421727 Y CN 201421727Y CN 2009200444539 U CN2009200444539 U CN 2009200444539U CN 200920044453 U CN200920044453 U CN 200920044453U CN 201421727 Y CN201421727 Y CN 201421727Y
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- Prior art keywords
- cable
- periphery
- jamming
- observation
- conductor
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- 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 discloses an anti-jamming observation and control cable used for a DCS system, belonging to the technical field of cable structure. The anti-jamming observation and control cable comprises five cable cores, wherein each cable core comprises a conductive line core composed of a conductor and a polyvinyl chloride anti-flaming insulating layer around the conductor; an isolation beltis coated at the periphery of the conductive line core, and a split-phase shielding layer is arranged at the periphery of the isolation belt; total shielding layers are arranged at the peripheries ofthe five cable cores, and sheathes are arranged at the peripheries of the total shielding layers. The utility model has the advantages in that the copper wire braiding and the split-phase shielding are carried out on the signal line core of the cable, so as to form the cable, and then the wrapped shield is carried out on the cable by a copper belt. The requirement on a shielding suppression system is just 0.001, and the specified requirement can be met; the sheathes adopt the 105-DEG C polyvinyl chloride sheathes and meet the anti-flaming requirement A. The anti-jamming observation and control cable can be widely used in the electric power plant.
Description
Technical field
The utility model relates to the technical field of the construction of cable, the anti-interference measurement and control cable of particularly a kind of DCS system.
Background technology
Along with constant development of economy, industrial enterprise constantly increase, power requirement is continued to increase thereupon, requirement to the safe power supply of the DCS system (digital information gathering system network) of power plant simultaneously also continues to increase, and be that the supporting special purpose cable of Power Plant DCS System is higher to the requirement of shielding, require shielding inhibition system to be not more than 0.003, the sheath to this cable requires to have reached the fire-retardant requirement of A level simultaneously.
The utility model content
The purpose of this utility model is in order to overcome the deficiencies in the prior art, to provide a kind of interference free performance the good anti-interference measurement and control cable of DCS system.
The purpose of this utility model is achieved in that the anti-interference measurement and control cable of DCS system, comprise five cable cores, every cable core comprises conductor wire core, conductor wire core is made of the polyvinyl chloride flame retardant insulation of conductor and conductor periphery, the periphery bag of conductor wire core is carried out the isolation strip, and the periphery of isolation strip is provided with the phase-splitting screen; The periphery of described five cable cores is provided with total screen, and the periphery of total screen is provided with sheath.
The beneficial effects of the utility model are: the utility model carries out copper wire braiding phase-splitting shielding to the single core of cable, carry out the wrapped shielding of copper strips behind the stranding, shielding inhibition system only is 0.001, reached the regulation requirement, sheath adopts 105 ℃ of pvc sheaths, and this restrictive coating has reached the requirement of fire-retardant A level.The utility model can be extensive use of in power plant.
Description of drawings
Fig. 1 is a kind of structural representation of the present utility model.
Among the figure, 1 sheath, 2 total screens, 3 phase-splitting screens, 4 isolation strip, 5 polyvinyl chloride flame retardant insulation, 6 conductors, 7 cable cores.
Embodiment
Below in conjunction with accompanying drawing embodiment of the present utility model is described further:
As shown in drawings: the anti-interference measurement and control cable of a kind of DCS system, comprise that the periphery of 7, five cable cores 7 of five cable cores is provided with the wrapped total screen 2 of copper strips, the periphery of total screen 2 is provided with 105 ℃ of flame-proof polyvinyl chloride sheaths 1.
Every cable core 7 comprises conductor wire core, conductor wire core is made of 90 ℃ of polyvinyl chloride flame retardant insulation 5 of stranded conductor that forms 6 of tinned copper wire and conductor 6 peripheries, the periphery bag of conductor wire core is carried out PE isolation strip 4, and the periphery of isolation strip 4 is provided with the phase-splitting screen 3 of copper wire braiding phase-splitting shielding.
Claims (1)
1, the anti-interference measurement and control cable of DCS system, it is characterized in that: comprise five cable cores, every cable core comprises conductor wire core, and conductor wire core is made of the polyvinyl chloride flame retardant insulation of conductor and conductor periphery, the periphery bag of conductor wire core is carried out the isolation strip, and the periphery of isolation strip is provided with the phase-splitting screen; The periphery of described five cable cores is provided with total screen, and the periphery of total screen is provided with sheath.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200444539U CN201421727Y (en) | 2009-06-09 | 2009-06-09 | Anti-jamming observation and control cable used for DCS system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200444539U CN201421727Y (en) | 2009-06-09 | 2009-06-09 | Anti-jamming observation and control cable used for DCS system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201421727Y true CN201421727Y (en) | 2010-03-10 |
Family
ID=41808389
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009200444539U Expired - Fee Related CN201421727Y (en) | 2009-06-09 | 2009-06-09 | Anti-jamming observation and control cable used for DCS system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201421727Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102751019A (en) * | 2012-06-14 | 2012-10-24 | 金杯电工衡阳电缆有限公司 | Frequency conversion cable with flexible metal sheath |
-
2009
- 2009-06-09 CN CN2009200444539U patent/CN201421727Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102751019A (en) * | 2012-06-14 | 2012-10-24 | 金杯电工衡阳电缆有限公司 | Frequency conversion cable with flexible metal sheath |
| CN102751019B (en) * | 2012-06-14 | 2015-07-01 | 金杯电工衡阳电缆有限公司 | Frequency conversion cable with flexible metal sheath |
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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: 20100310 Termination date: 20110609 |