CN201918211U - Explosion-proof cable - Google Patents
Explosion-proof cable Download PDFInfo
- Publication number
- CN201918211U CN201918211U CN2011200516233U CN201120051623U CN201918211U CN 201918211 U CN201918211 U CN 201918211U CN 2011200516233 U CN2011200516233 U CN 2011200516233U CN 201120051623 U CN201120051623 U CN 201120051623U CN 201918211 U CN201918211 U CN 201918211U
- Authority
- CN
- China
- Prior art keywords
- cable
- explosion
- layer
- proof
- utility
- 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
Links
- 239000004020 conductor Substances 0.000 claims abstract description 19
- 239000002184 metal Substances 0.000 claims abstract description 7
- 238000004880 explosion Methods 0.000 claims description 9
- 238000002955 isolation Methods 0.000 claims description 7
- 239000011248 coating agent Substances 0.000 claims description 5
- 238000000576 coating method Methods 0.000 claims description 5
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 230000008054 signal transmission Effects 0.000 abstract description 2
- 229920000915 polyvinyl chloride Polymers 0.000 description 5
- 239000004800 polyvinyl chloride Substances 0.000 description 5
- 230000004888 barrier function Effects 0.000 description 2
- 238000004132 cross linking Methods 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 229920000098 polyolefin Polymers 0.000 description 1
Images
Classifications
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/14—Extreme weather resilient electric power supply systems, e.g. strengthening power lines or underground power cables
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- Insulated Conductors (AREA)
Abstract
本实用新型公开了一种防爆电缆，包括电缆缆芯、电缆缆芯间的填充层（4）、以及在电缆缆芯和填充层（4）外依次包覆的金属屏蔽层（5）和PVC护套层（6），所述的电缆缆芯由至少一条主导体（1）、设置在主导体（1）外的防爆绝缘层（2）以及引流线（3）绞合而成。本实用新型的有益效果是：结构简单、生产成本低，提高了电缆的防爆性能，同时减少了信号间的干扰，提高信号传输的准确度，适用范围广。
The utility model discloses an explosion-proof cable, which comprises a cable core, a filling layer (4) between the cable cores, and a metal shielding layer (5) and PVC coated in turn on the outside of the cable core and the filling layer (4). The sheath layer (6), the cable core is formed by twisting at least one main conductor (1), an explosion-proof insulating layer (2) arranged outside the main conductor (1), and a drain wire (3). The utility model has the beneficial effects of simple structure, low production cost, improved explosion-proof performance of cables, reduced interference between signals, improved accuracy of signal transmission, and wide application range.
Description
Technical field
The utility model relates to a kind of cable, particularly relates to a kind of anti-explosion cable.
Background technology
Has place explosion hazard and that explosion-proof security is had relatively high expectations at some, such as, offshore oil platform, oiling, gas station etc., cable commonly used transmits automatic control signal, and present employed cable, still adopt common cable, all explosion-proof performance is not done requirement, only stipulated on the structure that the thinnest point of insulation, material are common material, can't reach requirement of explosion proof, the while existing cable is only stipulated to shield density requirements and is not had the drainage measure, can not stop interference fully.
The utility model content
The purpose of this utility model promptly is to overcome the shortcoming of existing cable, and a kind of anti-explosion cable is provided, and can improve the explosion-proof performance of cable, effectively reduces the interference between signal simultaneously.
The purpose of this utility model is achieved through the following technical solutions: anti-explosion cable, it comprises the packed layer between cable conductor, cable conductor and the metal screen layer and drainage thread and the PVC(polyvinyl chloride that coat successively outside cable conductor and packed layer) restrictive coating, described cable conductor by at least one leading body, be arranged on the outer explosion-proof isolation layer of leading body and drainage thread is stranded forms.
Described explosion-proof isolation layer is a cross-linking type PO(polyolefin) insulating barrier.
The beneficial effects of the utility model are: described explosion-proof isolation layer is a cross-linking type PO insulating barrier, the insulation concentricity is greater than 85%, improved the explosion-proof performance of cable, the braid shielded density of metal screen layer has guaranteed 100%, and adds drainage thread shunting, its mutual capacitance≤115pF/m, inductance resistance ratio L/R≤25 μ V/ Ω, antistatic interference≤1V, anti-radio frequency interference≤50dB has effectively reduced the interference between signal.The conductor thread core maximum operating temperature is 70 ℃, and minimum ambient temperature is-20 ℃ when fixedly laying, and it is 0 ℃ that on-fixed lays; Cable permission bending radius is not less than 8 times of the outside diameter of cable; The cable distribution parameter is little, crosstalks between anti-external interference and line.The utility model is simple in structure, production cost is low, has improved the explosion-proof performance of cable, has reduced the interference between signal simultaneously, improves the accuracy of signal transmission, and is applied widely.
Description of drawings
Fig. 1 is a twin core cable structural representation of the present utility model
Fig. 2 is a three-core cable structural representation of the present utility model
Among the figure, 1-leading body, 2-explosion-proof isolation layer, 3-drainage thread, 4-packed layer, 5-metal screen layer, 6-PVC restrictive coating.
Embodiment
Below in conjunction with embodiment the utility model is further described.
Embodiment 1: as Fig. 1, anti-explosion cable, it comprises the packed layer 4 between cable conductor, cable conductor and the metal screen layer 5 and the PVC restrictive coating 6 that coat successively outside cable conductor and packed layer 4, described cable conductor by two leading bodies 1, be arranged on leading body 1 outer explosion-proof isolation layer 2 and drainage thread 3 stranded forming, be commonly used in shielding control cable, shielding instrument with cable etc., fixedly be laid in indoor, cable trough or the pipeline, can also be made into flexible cable and be applied to require soft occasion according to practical requirement simultaneously.
Embodiment 2: as Fig. 2, anti-explosion cable, it comprises the packed layer 4 between cable conductor, cable conductor and the metal screen layer 5 and the PVC restrictive coating 6 that coat successively outside cable conductor and packed layer 4, described cable conductor by three leading bodies 1, be arranged on leading body 1 outer explosion-proof isolation layer 2 and drainage thread 3 stranded forming, be commonly used in shielding control cable, shielding instrument with cable etc., fixedly be laid in indoor, cable trough or the pipeline, can also be made into flexible cable and be applied to require soft occasion according to practical requirement simultaneously.
Claims (1)
1. anti-explosion cable, it is characterized in that: it comprises the packed layer (4) between cable conductor, cable conductor and the metal screen layer (5) and the PVC restrictive coating (6) that coat successively outside cable conductor and packed layer (4), described cable conductor by at least one leading body (1), be arranged on leading body (1) explosion-proof isolation layer (2) and stranded the forming of drainage thread (3) outward.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200516233U CN201918211U (en) | 2011-03-01 | 2011-03-01 | Explosion-proof cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200516233U CN201918211U (en) | 2011-03-01 | 2011-03-01 | Explosion-proof cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201918211U true CN201918211U (en) | 2011-08-03 |
Family
ID=44418003
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200516233U Expired - Fee Related CN201918211U (en) | 2011-03-01 | 2011-03-01 | Explosion-proof cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201918211U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103943204A (en) * | 2014-03-03 | 2014-07-23 | 安徽新科电缆集团股份有限公司 | Flexible insulating armor cable for motor |
| CN103943235A (en) * | 2014-03-03 | 2014-07-23 | 安徽新科电缆集团股份有限公司 | Flexible drainage cable for motor |
| US9683439B2 (en) | 2013-10-29 | 2017-06-20 | Halliburton Energy Services, Inc. | Safety cable for downhole communications |
| CN107077924A (en) * | 2014-10-03 | 2017-08-18 | 拓自达电线株式会社 | Shielding wire |
-
2011
- 2011-03-01 CN CN2011200516233U patent/CN201918211U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9683439B2 (en) | 2013-10-29 | 2017-06-20 | Halliburton Energy Services, Inc. | Safety cable for downhole communications |
| CN103943204A (en) * | 2014-03-03 | 2014-07-23 | 安徽新科电缆集团股份有限公司 | Flexible insulating armor cable for motor |
| CN103943235A (en) * | 2014-03-03 | 2014-07-23 | 安徽新科电缆集团股份有限公司 | Flexible drainage cable for motor |
| CN107077924A (en) * | 2014-10-03 | 2017-08-18 | 拓自达电线株式会社 | Shielding wire |
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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: 20110803 Termination date: 20120301 |