CN107256736B - Power cable with a plurality of rectangular protection frames - Google Patents
Power cable with a plurality of rectangular protection frames Download PDFInfo
- Publication number
- CN107256736B CN107256736B CN201710666065.3A CN201710666065A CN107256736B CN 107256736 B CN107256736 B CN 107256736B CN 201710666065 A CN201710666065 A CN 201710666065A CN 107256736 B CN107256736 B CN 107256736B
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- CN
- China
- Prior art keywords
- layer
- rectangular protection
- protection frames
- cross
- rectangular
- 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.)
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Classifications
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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
- H01B7/1805—Protections not provided for in groups H01B7/182 - H01B7/26
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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
- H01B7/04—Flexible cables, conductors, or cords, e.g. trailing cables
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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
- H01B7/1805—Protections not provided for in groups H01B7/182 - H01B7/26
- H01B7/1815—Protections not provided for in groups H01B7/182 - H01B7/26 composed of longitudinal inserts
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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
- H01B7/28—Protection against damage caused by moisture, corrosion, chemical attack or weather
- H01B7/2806—Protection against damage caused by corrosion
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B9/00—Power cables
- H01B9/006—Constructional features relating to the conductors
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B9/00—Power cables
- H01B9/02—Power cables with screens or conductive layers, e.g. for avoiding large potential gradients
- H01B9/021—Features relating to screening tape per se
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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
Landscapes
- Insulated Conductors (AREA)
Abstract
The invention discloses a power cable with a plurality of rectangular protection frames, which comprises a cross-shaped silicon rubber skeleton, wherein three rectangular protection frames with unequal sizes are arranged in four cavities of the cross-shaped silicon rubber skeleton in parallel, the bottom surfaces of the rectangular protection frames are connected with the cross-shaped silicon rubber skeleton into a whole, the inside of each rectangular protection frame is respectively provided with a wire core with unequal numbers, the outer walls of the wire cores are tightly attached to the inner walls of the rectangular protection frames, the wire cores are formed by conductors, ethylene propylene diene monomer rubber insulating layers and composite insulating shielding layers, and the cable cores are formed by the cross-shaped silicon rubber skeleton, the rectangular protection frames and the wire cores. The invention adopts the rectangular protection frame to protect the wire core, greatly prolongs the service life of the wire core, and has the advantages of simple structure, clear weight, high softness, longer service life and corrosion resistance.
Description
Technical Field
The invention relates to the technical field of cables, in particular to a power cable with a plurality of rectangular protection frames.
Background
The power cable is a cable for transmitting and distributing electric energy, and is commonly used for urban underground power grids, power station outgoing lines, power supply in industrial and mining enterprises and power transmission lines under sea water passing through the river.
In the electric power line, the proportion of the cable is gradually increasing. Power cables are cable products used in the main line of power systems to transmit and distribute high power electrical energy, including various voltage classes of 1-500KV and above, and various insulated power cables. The basic structure of the power cable consists of four parts, namely a wire core, an insulating layer, a shielding layer and a protective layer. The conventional power cable has various defects such as weak tensile strength, easiness in breakage, poor water resistance and the like.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides a power cable with a plurality of rectangular protection frames.
The invention is realized by the following technical scheme:
the utility model provides a power cable with a plurality of rectangle protection frame, is including the cross-section for cross-shaped silicone rubber skeleton, all is equipped with three size unequal parallel arrangement's rectangle protection frame in four cavitys of cross-shaped silicone rubber skeleton, rectangle protection frame's bottom surface and cross-shaped silicone rubber skeleton link as an organic wholely, be equipped with the sinle silk that the quantity is unequal respectively in every rectangle protection frame inside, the outer wall of sinle silk tightly laminate with rectangle protection frame's inner wall, the sinle silk constitute by conductor and the ethylene propylene diene monomer rubber insulating layer and the compound insulation shielding layer of cladding in proper order in the conductor outside, cross-shaped silicone rubber skeleton, a plurality of rectangle protection frame and a plurality of sinle silk constitute the cable core, cladding in proper order in the outside of cable core has seamless lead alloy restrictive coating, carbon black paper insulation shielding layer, semiconductive buffer water blocking tape layer and three-layer protective layer, is filled with polyethylene elastic fiber and high temperature resistant glass silk mixed filling layer between seamless lead alloy restrictive coating and rectangle protection frame.
The composite insulating shielding layer sequentially comprises a semiconductive fluororubber inner shielding layer, a fluororubber insulating layer and a semiconductive fluororubber outer shielding layer from inside to outside.
The three outer protective layers are a silver-plated nickel tape armor layer, a butyronitrile insulating layer and a nickel-plastic copper tape armor polyethylene sheath layer from inside to outside.
The number of the wire cores in the three rectangular protection frames with different sizes is four, three and one respectively.
The cross-shaped silicon rubber framework is characterized in that three rectangular protection frames with unequal sizes are arranged in four cavities of the cross-shaped silicon rubber framework, the bottom surface of the rectangular protection frame is connected with the cross-shaped silicon rubber framework into a whole, the inner parts of each rectangular protection frame are respectively provided with wire cores with unequal numbers, the wire cores are placed in the protection frames, firstly, the arrangement problem of the wire cores in the cable can be finished, the wire cores are prevented from sliding, the structure is enabled to be tidier and more compact, secondly, the effect of protecting the wire cores is achieved, and the tensile and pressure-resistant performances of the wire cores are improved.
The composite insulation shielding layer sequentially comprises a semiconductive fluororubber inner shielding layer, a fluororubber insulation layer and a semiconductive fluororubber outer shielding layer from inside to outside, wherein the semiconductive fluororubber inner shielding layer and the semiconductive fluororubber outer shielding layer are made of wrapping type or extrusion type fluororubber materials, the fluororubber insulation layer is made of wrapping type or extrusion type fluororubber materials, the soft characteristic and the high temperature resistance of the cable are guaranteed, and noise signals generated by the cable are minimized.
The semiconductive buffer water-blocking tape is a semiconductive buffer water-blocking material, and is formed by adhering a layer of semiconductive water-blocking material between two layers of semiconductive base materials, and has semiconductive property, buffer gasket function, water-blocking function, safe operation of the cable and prolonged service life.
The three outer protective layers are a silver-plated nickel tape armor layer, a butyronitrile insulating layer and a nickel plastic copper tape armor polyethylene sheath layer from inside to outside in sequence, so that the wear-resisting effect is better, and the service life is longer.
The seamless lead alloy sheath can be used as a grounding conductor for transmitting partial short-circuit current, and can also be used as a waterproof protective layer to ensure that the cable core conductor is prevented from being affected by moisture and water, and the coated asphalt can improve the seawater corrosion resistance.
The polyethylene elastic fiber and the high-temperature-resistant glass fiber are mixed to form a filling layer, and meanwhile, the filling layer has the effects of buffering and high temperature resistance.
The invention has the advantages that: the invention adopts the rectangular protection frame to protect the wire core, greatly prolongs the service life of the wire core, and has the advantages of simple structure, light weight, high softness, longer service life and corrosion resistance.
Drawings
Fig. 1 is a schematic structural view of the present invention.
Detailed Description
As shown in fig. 1, a power cable with a plurality of rectangular protection frames comprises a silicon rubber skeleton 1 with a cross-shaped cross section, three rectangular protection frames 2 with unequal parallel arrangement are arranged in four cavities of the cross-shaped silicon rubber skeleton 1, the bottom surface of each rectangular protection frame 2 is connected with the cross-shaped silicon rubber skeleton 1 into a whole, cores with unequal numbers are respectively arranged in each rectangular protection frame 2, the outer walls of the cores are tightly attached to the inner walls of the rectangular protection frames 2, the cores are formed by conductors 3, ethylene propylene diene monomer rubber insulating layers 4 and composite insulating shielding layers 5 which are sequentially coated on the outer sides of the conductors 3, the cross-shaped silicon rubber skeleton 1, the plurality of rectangular protection frames 2 and the plurality of cores form a cable core, a seamless lead alloy sheath layer 6, a carbon black paper insulating shielding layer 7, a semiconductive buffer tape layer 8 and three-layer protection layers 9 are sequentially coated on the outer sides of the cable core, and a polyethylene elastic fiber and high-temperature-resistant glass fiber mixed water blocking filling layer 10 is filled between the seamless lead alloy sheath layer 6 and the rectangular protection frames 2.
The composite insulating shielding layer 5 is composed of a semiconductive fluororubber inner shielding layer, a fluororubber insulating layer and a semiconductive fluororubber outer shielding layer from inside to outside in sequence.
The three outer protective layers 9 are sequentially a silver-plated nickel tape armor layer, a butyronitrile insulating layer and a nickel-plastic copper tape armored polyethylene sheath layer from inside to outside.
The number of the wire cores in the three rectangular protection frames 2 with different sizes is four, three and one respectively.
Claims (1)
1. A power cable with a plurality of rectangular protective frames, characterized in that: the cable comprises a cross-shaped silicon rubber framework, three rectangular protection frames with unequal sizes and arranged in parallel are arranged in four cavities of the cross-shaped silicon rubber framework, the bottom surface of the rectangular protection frames are connected with the cross-shaped silicon rubber framework into a whole, the inside of each rectangular protection frame is respectively provided with a plurality of wire cores with unequal numbers, the outer walls of the wire cores are tightly attached to the inner walls of the rectangular protection frames, the wire cores are formed by conductors, ethylene propylene diene monomer rubber insulating layers and composite insulating shielding layers which are sequentially coated on the outer sides of the conductors, the cross-shaped silicon rubber framework, the rectangular protection frames and the wire cores form a cable core, a seamless lead alloy sheath layer, a carbon black paper insulating shielding layer, a semiconductive buffer water blocking tape layer and three-layer outer protection layers are sequentially coated on the outer sides of the cable core, and a polyethylene elastic fiber and high-temperature-resistant glass fiber mixed filling layer is filled between the seamless lead alloy sheath layer and the rectangular protection frames;
the composite insulating shielding layer sequentially comprises a semiconductive fluororubber inner shielding layer, a fluororubber insulating layer and a semiconductive fluororubber outer shielding layer from inside to outside;
the three outer protective layers are a silver-plated nickel tape armor layer, a butyronitrile insulating layer and a nickel-plastic copper tape armor polyethylene sheath layer from inside to outside in sequence;
the number of the wire cores in the three rectangular protection frames with different sizes is four, three and one respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710666065.3A CN107256736B (en) | 2017-08-07 | 2017-08-07 | Power cable with a plurality of rectangular protection frames |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710666065.3A CN107256736B (en) | 2017-08-07 | 2017-08-07 | Power cable with a plurality of rectangular protection frames |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107256736A CN107256736A (en) | 2017-10-17 |
| CN107256736B true CN107256736B (en) | 2023-09-05 |
Family
ID=60025537
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710666065.3A Active CN107256736B (en) | 2017-08-07 | 2017-08-07 | Power cable with a plurality of rectangular protection frames |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107256736B (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2330381A (en) * | 1941-05-07 | 1943-09-28 | Int Standard Electric Corp | Electric communication cable |
| CA2631883A1 (en) * | 2005-12-09 | 2007-06-14 | Belden Technologies, Inc. | Twisted pair cable having improved crosstalk isolation |
| CN103077768A (en) * | 2013-02-21 | 2013-05-01 | 江苏永鼎电气有限公司 | Flexible high-temperature resistant low-noise cable |
| CN203134448U (en) * | 2012-12-13 | 2013-08-14 | 江苏远洋东泽电缆股份有限公司 | Submarine cable with increased current-carrying capacity |
| CN203773990U (en) * | 2014-03-18 | 2014-08-13 | 安徽金阳电器科技发展有限责任公司 | Fan-shaped and round control cable with cross-shaped rubber skeleton |
| CN203871033U (en) * | 2014-03-20 | 2014-10-08 | 安徽春辉仪表线缆集团有限公司 | Anticorrosion power cable |
| CN204242641U (en) * | 2014-11-17 | 2015-04-01 | 安徽科华热控有限公司 | A kind of high flame retardant height water-proof cable |
| CN104616735A (en) * | 2015-01-30 | 2015-05-13 | 安徽德源电缆集团有限公司 | Conductor insulation shielding cable with flat shape |
| CN205900186U (en) * | 2016-08-03 | 2017-01-18 | 上海巴瑞网络科技有限公司 | Data cable of triangle -shaped oversheath |
| CN206991804U (en) * | 2017-08-07 | 2018-02-09 | 安徽徽宁电器仪表集团有限公司 | A kind of power cable with multiple rectangular protecting frame framves |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2435124B (en) * | 2006-02-13 | 2008-01-02 | Brand Rex Ltd | Improvements in and Relating to Electrical Cables |
-
2017
- 2017-08-07 CN CN201710666065.3A patent/CN107256736B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2330381A (en) * | 1941-05-07 | 1943-09-28 | Int Standard Electric Corp | Electric communication cable |
| CA2631883A1 (en) * | 2005-12-09 | 2007-06-14 | Belden Technologies, Inc. | Twisted pair cable having improved crosstalk isolation |
| CN203134448U (en) * | 2012-12-13 | 2013-08-14 | 江苏远洋东泽电缆股份有限公司 | Submarine cable with increased current-carrying capacity |
| CN103077768A (en) * | 2013-02-21 | 2013-05-01 | 江苏永鼎电气有限公司 | Flexible high-temperature resistant low-noise cable |
| CN203773990U (en) * | 2014-03-18 | 2014-08-13 | 安徽金阳电器科技发展有限责任公司 | Fan-shaped and round control cable with cross-shaped rubber skeleton |
| CN203871033U (en) * | 2014-03-20 | 2014-10-08 | 安徽春辉仪表线缆集团有限公司 | Anticorrosion power cable |
| CN204242641U (en) * | 2014-11-17 | 2015-04-01 | 安徽科华热控有限公司 | A kind of high flame retardant height water-proof cable |
| CN104616735A (en) * | 2015-01-30 | 2015-05-13 | 安徽德源电缆集团有限公司 | Conductor insulation shielding cable with flat shape |
| CN205900186U (en) * | 2016-08-03 | 2017-01-18 | 上海巴瑞网络科技有限公司 | Data cable of triangle -shaped oversheath |
| CN206991804U (en) * | 2017-08-07 | 2018-02-09 | 安徽徽宁电器仪表集团有限公司 | A kind of power cable with multiple rectangular protecting frame framves |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107256736A (en) | 2017-10-17 |
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