CN114171250B - Special control cable for intelligent control power distribution device of strong intelligent power grid extra-high voltage system - Google Patents
Special control cable for intelligent control power distribution device of strong intelligent power grid extra-high voltage system Download PDFInfo
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- CN114171250B CN114171250B CN202111528206.8A CN202111528206A CN114171250B CN 114171250 B CN114171250 B CN 114171250B CN 202111528206 A CN202111528206 A CN 202111528206A CN 114171250 B CN114171250 B CN 114171250B
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
- H01B7/18—Protection against damage caused by wear, mechanical force or pressure; Sheaths; Armouring
- H01B7/24—Devices affording localised protection against mechanical force or pressure
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B11/00—Communication cables or conductors
- H01B11/02—Cables with twisted pairs or quads
- H01B11/06—Cables with twisted pairs or quads with means for reducing effects of electromagnetic or electrostatic disturbances, e.g. screens
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B3/00—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties
- H01B3/18—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances
- H01B3/30—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes
- H01B3/44—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes vinyl resins; acrylic resins
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/02—Disposition of insulation
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
- H01B7/18—Protection against damage caused by wear, mechanical force or pressure; Sheaths; Armouring
- H01B7/184—Sheaths comprising grooves, ribs or other projections
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
- H01B7/18—Protection against damage caused by wear, mechanical force or pressure; Sheaths; Armouring
- H01B7/1875—Multi-layer sheaths
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
- H01B7/18—Protection against damage caused by wear, mechanical force or pressure; Sheaths; Armouring
- H01B7/22—Metal wires or tapes, e.g. made of steel
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
- H01B7/29—Protection against damage caused by extremes of temperature or by flame
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- Spectroscopy & Molecular Physics (AREA)
- Electromagnetism (AREA)
- Installation Of Indoor Wiring (AREA)
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Abstract
The application discloses special control cable of distribution device is controlled to extra-high voltage system intelligence of strong smart power grids includes oversheath, interior sheath, armor, shielding layer and around the covering in proper order from outside to inside, a plurality of cable cores have around the covering in situ, the cable core includes the insulating layer and by the conductor of insulating layer cladding. Still have withstand voltage buffer layer between inner sheath and the oversheath, withstand voltage buffer layer includes two first buffering skeletons, two second buffering skeletons and two surrounding frameworks. The cable of the application has better shielding and mechanical properties, thereby having stable performance and stable use.
Description
Technical Field
The application relates to the field of cables, in particular to a special control cable for an intelligent control power distribution device of a strong smart grid extra-high voltage system.
Background
The smart grid is the intellectualization of the power grid, and is established on the basis of an integrated high-speed bidirectional communication network, and the purposes of reliability, safety, economy, high efficiency, environmental friendliness and safe use of the power grid are realized through the application of advanced sensing and measuring technology, advanced equipment technology, advanced control method and advanced decision support system technology. Such a more efficient smart grid also relies more on excellent power transmission cables and control cables of related electrical devices, and once the control cables are damaged, the transmission of signals is directly affected, so as to affect the operation of the whole power grid.
Disclosure of Invention
The purpose of the invention is as follows: the application aims at overcoming the defects of the prior art and provides the special control cable for the intelligent control power distribution device of the strong intelligent power grid extra-high voltage system.
The technical scheme is as follows: the utility model provides a special control cable of distribution device is controlled to extra-high voltage system intelligence of strong smart power grids, includes oversheath, interior sheath, armor, shielding layer and around the covering in proper order from outside to inside, have a plurality of cable cores around the covering in situ, the cable core includes the insulating layer and by the conductor of insulating layer cladding.
Further, the conductor is a stranded copper conductor; the wrapping layer is a halogen-free flame-retardant tape; the insulating layer is a polyethylene layer, and the shielding layer is a copper wire braided shielding layer; the armor layer is a steel wire armor layer, and the inner protective layer is a polyethylene inner protective layer.
Furthermore, a pressure-resistant buffer layer is arranged between the inner protective layer and the outer protective layer and comprises two first buffer frameworks, two second buffer frameworks and two surrounding frameworks, the two first buffer frameworks surround the inner protective layer, the two second buffer frameworks surround the two first buffer frameworks, and the two surrounding frameworks surround the two second buffer frameworks; the outer side of the inner protection layer is provided with a plurality of first positioning grooves and two first limiting grooves, the inner side of the first buffering framework is provided with a plurality of first positioning convex ribs, the number of the first positioning convex ribs of each first buffering framework is equal to half of the number of the first positioning grooves on the outer side of the inner protection layer, the outer side of the first buffering framework is provided with a plurality of second positioning grooves, the inner side of the second buffering framework is provided with a plurality of second positioning convex ribs, and the number of the second positioning grooves of each first buffering framework is equal to the number of the second positioning convex ribs of each second buffering framework; the inboard that surrounds the skeleton has along the first bar splice bar that surrounds skeleton length direction and extend, the tip of first bar splice bar has the spacing of first bar, the spacing of first bar can hold in first spacing inslot, every first bar splice bar is located between the tip of two first buffering skeletons, and every first bar splice bar is located between the tip of two second buffering skeletons.
Further, the surrounding frameworks are internally provided with tensile core wires extending along the length direction of the cable, and each surrounding framework is internally provided with more than 2 tensile core wires.
Thereby, the tensile core wire arranged in the surrounding framework provides better tensile performance for the cable.
Further, the outside of first buffering skeleton has a plurality of bar slots, the quantity of bar slot equals the quantity of first location protruding muscle and both one-to-one, the outside of every first location protruding muscle has one the bar slot.
The strip-shaped groove can further increase the buffering performance of the first buffering framework when the first buffering framework is pressed.
Further, the outer side of each second buffer framework is provided with a supporting convex rib which faces and abuts against one of the strip-shaped grooves of the first buffer framework.
Support protruding muscle on the one hand and increase the support performance, on the other hand leaves sufficient space for setting up the second spacing groove, increases the spacing intensity of whole block.
Furthermore, a second limiting groove is formed in the outer side of the second buffering framework, a first strip-shaped convex plate is arranged at the first end of the surrounding framework, an accommodating groove is formed in the outer side of the first strip-shaped convex plate, the first strip-shaped convex plate is connected with a second strip-shaped limiting strip through a second strip-shaped connecting rib, the second strip-shaped limiting strip is accommodated in the second limiting groove, a third limiting groove is formed in the position of the second strip-shaped limiting strip, a second strip-shaped convex plate is arranged at the second end of the surrounding framework, a strip-shaped pressing rib capable of being accommodated in the accommodating groove is fixed on the inner side of the second strip-shaped convex plate, a third strip-shaped limiting strip is further connected to the second end of the surrounding framework through a third strip-shaped connecting rib, and the third strip-shaped limiting strip is accommodated in the third limiting groove; the first end of each surrounding skeleton faces the second end of the other surrounding skeleton.
Further, the first buffer framework, the second buffer framework and the surrounding framework are all made of rubber materials; the outer sheath is extruded from a cross-linked polyolefin material.
Thereby oversheath extrusion molding gets up two first buffering skeletons, two second buffering skeletons and two all claddings of surrounding skeleton.
Further, the cross sections of the first limiting groove, the second limiting groove and the third limiting groove comprise arc lines, and the radian is greater than 200 degrees, preferably greater than 250 degrees; the cross-section of the first bar-shaped limiting strip, the second bar-shaped limiting strip and the third bar-shaped limiting strip comprises arc lines, and the radian is greater than 200 degrees, preferably greater than 250 degrees.
Further, the cable core has 4.
Has the beneficial effects that: the utility model provides a control cable can be applicable to strong smart power grids extra-high voltage system intelligence and control distribution device to have fine insulation, fire-retardant, shielding property, the cable of this application has increased a plurality of buffer structure between outer sheath and interior sheath in addition, realizes the holistic cladding protection to the cable, thereby increased mechanical properties, even if can guarantee its normal use in the face of great external force interference, tensile, withstand voltage homoenergetic.
Drawings
FIG. 1 is a schematic cross-sectional view of a cable;
FIG. 2 is a perspective view of one end of a cable;
FIG. 3 is an enlarged view of area A;
FIG. 4 is an exploded cross-sectional view of a cable component;
FIG. 5 is an exploded perspective view of a cable component;
fig. 6 is an enlarged view of the region B.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Reference numerals: 1.1 a conductor; 1.2 an insulating layer; 2.1 wrapping a covering; 2.2 a shielding layer; 2.3 an armor layer; 2.4 inner protecting layer; 2.4.1 a first positioning groove; 2.4.2 first limiting groove; 3 a first buffer skeleton; 3.1 a first positioning convex rib; 3.2 a second positioning groove; 3.3 a strip-shaped groove; 4 a second buffer skeleton; 4.1 second positioning convex ribs; 4.2 supporting the convex ribs; 4.3 second limit groove; 5 surrounding the skeleton; 5.1.1 first strip-shaped convex plate; 5.1.2 Accommodating a tank; 5.1.3 second strip-shaped connecting ribs; 5.1.4 second limit strip; 5.1.5 third limiting groove; 5.2.1 A second bar-shaped convex plate; 5.2.2 bar-shaped ribbing; 5.2.3 third strip-shaped connecting ribs; 5.2.4 third limiting strip; 5.3.1 first strip-shaped connecting ribs; 5.3.2 first limit strip; 5.4 tensile core wire; 6 outer sheath.
As shown in the figure, a special control cable of distribution device is controlled to extra-high voltage system intelligence of strong smart power grid includes oversheath 6, interior sheath 2.4, armor 2.3, shielding layer 2.2 and around covering 2.1 from outside to inside in proper order, a plurality of cable cores have in covering 2.1 around, the cable core includes insulating layer 1.2 and by insulating layer 1.2 clad conductor 1.1. The conductor 1.1 is a stranded copper conductor; the wrapping layer 2.1 is a halogen-free flame-retardant tape; the insulating layer 1.2 is a polyethylene layer, and the shielding layer 2.2 is a copper wire braided shielding layer; the armor layer 2.3 is a steel wire armor layer, and the inner protective layer 2.4 is a polyethylene inner protective layer.
A pressure-resistant buffer layer is further arranged between the inner protective layer 2.4 and the outer protective sleeve 6 and comprises two first buffer frameworks 3, two second buffer frameworks 4 and two surrounding frameworks 5, the two first buffer frameworks 3 surround the inner protective layer 2.4, the two second buffer frameworks 4 surround the two first buffer frameworks 3, and the two surrounding frameworks 5 surround the two second buffer frameworks 4; the outer side of the inner protection layer 2.4 is provided with a plurality of first positioning grooves 2.4.1 and two first limiting grooves 2.4.2, the inner side of the first buffer framework 3 is provided with a plurality of first positioning convex ribs 3.1, the number of the first positioning convex ribs 3.1 of each first buffer framework 3 is equal to half of the number of the first positioning grooves 2.4.1 of the outer side of the inner protection layer 2.4, the outer side of the first buffer framework 3 is provided with a plurality of second positioning grooves 3.2, the inner side of the second buffer framework 4 is provided with a plurality of second positioning convex ribs 4.1, and the number of the second positioning grooves 3.2 of each first buffer framework 3 is equal to the number of the second positioning convex ribs 4.1 of each second buffer framework 4; the inboard of surrounding skeleton 5 has along the first bar splice bar 5.3.1 that surrounds 5 length direction extensions of skeleton, the tip of first bar splice bar 5.3.1 has the spacing 5.3.2 of first bar, the spacing 5.3.2 of first bar can hold in first spacing groove 2.4.2, every first bar splice bar 5.3.1 is located between the tip of two first buffering skeletons 3, and every first bar splice bar 5.3.1 is located between the tip of two second buffering skeletons 4.
The surrounding framework 5 is internally provided with tensile core wires 5.4 extending along the length direction of the cable, and each surrounding framework 5 is internally provided with more than 2 tensile core wires 5.4. The outside of first buffering skeleton 3 has a plurality of bar slot 3.3, the quantity of bar slot 3.3 equals first location protruding muscle 3.1's quantity and both one-to-one, every first location protruding muscle 3.1's the outside has one bar slot 3.3. The outer side of each second buffer framework 4 is provided with a supporting convex rib 4.2, and the supporting convex rib 4.2 faces and is abutted against one of the strip-shaped grooves 3.3 of the first buffer framework 3.
The outer side of the second buffer framework 4 is provided with a second limiting groove 4.3, the first end of the surrounding framework 5 is provided with a first strip-shaped convex plate 5.1.1, the outer side of the first strip-shaped convex plate 5.1.1 is provided with a containing groove 5.1.2, the first strip-shaped convex plate 5.1.1 is connected with a second strip-shaped limiting strip 5.1.4 through a second strip-shaped connecting rib 5.1.3, the second strip-shaped limiting strip 5.1.4 is contained in the second limiting groove 4.3, a third limiting groove 5.1.5 is arranged at the position of the second strip-shaped limiting strip 5.1.4, the second end of the surrounding framework 5 is provided with a second strip-shaped convex plate 5.2.1, the inner side of the second strip-shaped convex plate 5.2.1 is fixedly provided with a strip-shaped press rib 5.2.2.2 capable of being contained in the containing groove 5.1.2.2, the second end of the surrounding framework 5 is further connected with a third strip-shaped convex plate 5.2.3, and the third limiting strip-shaped connecting rib 5.2.4 is contained in the third limiting groove 5.1.5.1.4; the first end of each surrounding skeleton 5 faces the second end of the other surrounding skeleton 5.
The first buffer framework 3, the second buffer framework 4 and the surrounding framework 5 are all made of rubber materials; the outer sheath 6 is extruded from a cross-linked polyolefin material. The cross sections of the first limiting groove 2.4.2, the second limiting groove 4.3 and the third limiting groove 5.1.5 comprise arc lines, and the radian is more than 200 degrees; the cross sections of the first strip-shaped limiting strip 5.3.2, the second strip-shaped limiting strip 5.1.4 and the third strip-shaped limiting strip 5.2.4 comprise arc lines, and the radian is greater than 200 degrees.
As shown in the figure, its interior sheath of cable of this application has the armor, it is fire-retardant, and is insulating, the shielding effect, can guarantee the stable transmission of control cable's signal, and a plurality of buffer structure have between its inner sheath and the oversheath, as shown in the figure, first buffering skeleton and second buffering skeleton are the fold structure, and interior sheath has first positioning groove outward, first buffering skeleton has first protruding muscle of location and second positioning groove, second buffering skeleton has the protruding muscle of second location, thereby form holistic location to the cable, can not be in disorder in the circumferencial direction, and can provide fine anti effect of pressing in the footpath, thereby make the cable have better withstand voltage effect. And as shown in the figure, set up two and surround the skeleton, on the one hand, surround the first bar splice bar of skeleton and the first spacing groove cooperation of first bar splice bar and first bar splice bar can with interior sheath, it is fixed with first buffering skeleton and second buffering skeleton, on the other hand two tip that surround the skeleton also can be connected, as shown in the figure, the second spacing inslot that impresses earlier of second bar splice bar, the third spacing inslot that impresses of third bar splice bar, and when pressing, the second bar flange is located the outside of first bar flange, and the bar is pressed the muscle and is located the holding tank, and the bar is pressed the muscle and is the slice, and be located the second bar splice bar outside, thereby when pressing, be favorable to transmitting the power of pressing to second bar splice bar, thereby be favorable to the spacing second bar splice bar to impress the second spacing inslot more. Add man-hour, will protect the inside overall structure of layer to process well to with first buffering skeleton, second buffering skeleton and surround the skeleton, through the mode of pressing whole dress shaping after that, specifically when pressing, can adopt the mode that the segmentation was pressed (press or equipment is pressed through the manual work), impress each spacing inslot of each bar. Also can set up an internal diameter and follow the spacing ring that the surrounding skeleton external diameter equals, only need to press down fixedly as required each part (interior sheath) of the cable of spacing ring one side, two first buffering skeletons, two second buffering skeletons and two surrounding skeletons), then under the effect of traction force, each part (each part all is suitably guided the feeding) of follow-up process spacing ring, can be because the radial pressing force of spacing ring is automatic to be impressed the position that corresponds and regular, and the cable through the spacing ring just carries out the extrusion molding operation of oversheath immediately, thereby pass through pipelined's processing, increase machining efficiency.
It is to be noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising a … …" does not exclude the presence of another identical element in a process, method, article, or apparatus that comprises the element.
While the invention has been shown and described with respect to the preferred embodiments, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the scope of the invention as defined in the following claims.
Claims (7)
1. A special control cable special for an intelligent control power distribution device of a strong smart grid extra-high voltage system is characterized by sequentially comprising an outer sheath, an inner protective layer, an armor layer, a shielding layer and a wrapping layer from outside to inside, wherein a plurality of cable cores are arranged in the wrapping layer, and each cable core comprises an insulating layer and a conductor coated by the insulating layer; a pressure-resistant buffer layer is further arranged between the inner protective layer and the outer protective layer and comprises two first buffer frameworks, two second buffer frameworks and two surrounding frameworks, the two first buffer frameworks surround the inner protective layer, the two second buffer frameworks surround the two first buffer frameworks, and the two surrounding frameworks surround the two second buffer frameworks; the outer side of the inner protection layer is provided with a plurality of first positioning grooves and two first limiting grooves, the inner side of the first buffering framework is provided with a plurality of first positioning convex ribs, the number of the first positioning convex ribs of each first buffering framework is equal to half of the number of the first positioning grooves on the outer side of the inner protection layer, the outer side of the first buffering framework is provided with a plurality of second positioning grooves, the inner side of the second buffering framework is provided with a plurality of second positioning convex ribs, and the number of the second positioning grooves of each first buffering framework is equal to the number of the second positioning convex ribs of each second buffering framework; the inner side of the surrounding framework is provided with first bar-shaped connecting ribs extending along the length direction of the surrounding framework, the end parts of the first bar-shaped connecting ribs are provided with first bar-shaped limiting strips, the first bar-shaped limiting strips can be accommodated in the first limiting grooves, each first bar-shaped connecting rib is positioned between the end parts of the two first buffering frameworks, and each first bar-shaped connecting rib is positioned between the end parts of the two second buffering frameworks; the outer side of the second buffering framework is provided with a second limiting groove, the first end of the surrounding framework is provided with a first strip-shaped convex plate, the outer side of the first strip-shaped convex plate is provided with a containing groove, the first strip-shaped convex plate is connected with a second strip-shaped limiting strip through a second strip-shaped connecting rib, the second strip-shaped limiting strip is contained in the second limiting groove, a third limiting groove is arranged at the second strip-shaped limiting strip, the second end of the surrounding framework is provided with the second strip-shaped convex plate, a strip-shaped pressing rib capable of being contained in the containing groove is fixed on the inner side of the second strip-shaped convex plate, the second end of the surrounding framework is further connected with a third strip-shaped limiting strip through a third strip-shaped connecting rib, and the third strip-shaped limiting strip is contained in the third limiting groove; the first end of each surrounding skeleton faces the second end of the other surrounding skeleton.
2. The special control cable for the intelligent control power distribution device of the extra-high voltage system of the robust smart grid according to claim 1, wherein the conductor is a stranded copper conductor; the wrapping layer is a halogen-free flame-retardant tape; the insulating layer is a polyethylene layer, and the shielding layer is a copper wire braided shielding layer; the armor layer is a steel wire armor layer, and the inner protective layer is a polyethylene inner protective layer.
3. The special control cable for the intelligent control power distribution device of the extra-high voltage system of the robust smart grid according to claim 1, wherein tensile cores extending in the cable length direction are arranged in the surrounding frameworks, and more than 2 tensile cores are arranged in each surrounding framework.
4. The special control cable for the intelligent control power distribution device of the extra-high voltage system of the robust smart grid according to claim 1, wherein a plurality of strip-shaped grooves are formed in the outer side of the first buffering framework, the number of the strip-shaped grooves is equal to the number of the first positioning ribs, the first positioning ribs and the first positioning ribs correspond to each other one by one, and one strip-shaped groove is formed in the outer side of each first positioning rib.
5. The special control cable for the intelligent control power distribution device of the extra-high voltage system of the robust smart grid according to claim 4, wherein a support rib is arranged on the outer side of each second buffer framework, and the support rib faces and abuts against one of the strip-shaped grooves of the first buffer framework.
6. The special control cable for the intelligent control power distribution device of the extra-high voltage system of the robust smart grid according to claim 1, wherein the first buffer framework, the second buffer framework and the surrounding framework are made of rubber materials; the outer jacket is extruded from a cross-linked polyolefin material.
7. The special control cable for the intelligent control power distribution device of the extra-high voltage system of the robust smart grid according to claim 1, wherein the cross sections of the first limiting groove, the second limiting groove and the third limiting groove comprise arcs, and the radian is greater than 200 degrees; the cross-section of the first bar-shaped limiting strip, the second bar-shaped limiting strip and the third bar-shaped limiting strip comprises arc lines, and the radian is greater than 200 degrees.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111528206.8A CN114171250B (en) | 2021-12-14 | 2021-12-14 | Special control cable for intelligent control power distribution device of strong intelligent power grid extra-high voltage system |
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| CN202111528206.8A CN114171250B (en) | 2021-12-14 | 2021-12-14 | Special control cable for intelligent control power distribution device of strong intelligent power grid extra-high voltage system |
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| CN115359961B (en) * | 2022-09-15 | 2023-10-03 | 扬州曙光电缆股份有限公司 | Special control cable for ultrahigh voltage distribution device |
| CN116435024A (en) * | 2023-03-09 | 2023-07-14 | 扬州市金阳光电缆有限公司 | Special control cable for ultra-high voltage distribution device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CA1313237C (en) * | 1989-05-05 | 1993-01-26 | Robert R. Pawluk | Armoured electric cable with integral tensile members |
| CN101647073B (en) * | 2007-02-23 | 2011-12-14 | 普雷斯曼电缆和***有限公司 | Power cable with high torsional resistance |
| CN204130220U (en) * | 2014-10-27 | 2015-01-28 | 江苏江扬电缆有限公司 | The fire-retardant low temperature resistant cable of a kind of oil resistant |
| CN206134299U (en) * | 2016-08-29 | 2017-04-26 | 国能电缆有限责任公司 | Fire -retardant resistant fire control makes flexible cable |
| CN208111115U (en) * | 2018-03-16 | 2018-11-16 | 扬州市金阳光电缆有限公司 | A kind of urban track traffic high-performance active beacon cable |
| CN209183320U (en) * | 2018-09-29 | 2019-07-30 | 伽伽科技股份有限公司 | A kind of compound robotic transfer control cable |
| CN109786021B (en) * | 2019-02-12 | 2020-04-10 | 江苏长城电缆有限公司 | Special cable for severe environment of strong intelligent power grid digital transformer substation |
| US10784014B1 (en) * | 2019-06-20 | 2020-09-22 | Superior Essex International LP | Cables with foamed insulation suitable for air-blown installation |
| CN211907054U (en) * | 2020-03-16 | 2020-11-10 | 扬州曙光电缆股份有限公司 | Low-smoke halogen-free flame-retardant special computer instrument cable for maritime work equipment |
| CN111508643B (en) * | 2020-04-02 | 2021-05-18 | 江苏昌德嘉电缆有限公司 | Withstand voltage tensile high strength high insulation cable |
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