CN112542268A - Light-duty insulating photoelectric composite alternating current power cable for 110kV rail transit - Google Patents
Light-duty insulating photoelectric composite alternating current power cable for 110kV rail transit Download PDFInfo
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- CN112542268A CN112542268A CN202011407683.4A CN202011407683A CN112542268A CN 112542268 A CN112542268 A CN 112542268A CN 202011407683 A CN202011407683 A CN 202011407683A CN 112542268 A CN112542268 A CN 112542268A
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- 239000002131 composite material Substances 0.000 title claims abstract description 19
- 239000004020 conductor Substances 0.000 claims abstract description 30
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 15
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 15
- 230000003287 optical effect Effects 0.000 claims abstract description 15
- 229910052751 metal Inorganic materials 0.000 claims description 11
- 239000002184 metal Substances 0.000 claims description 11
- 229910001220 stainless steel Inorganic materials 0.000 claims description 10
- 239000010935 stainless steel Substances 0.000 claims description 10
- 239000000463 material Substances 0.000 claims description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 8
- 229910052755 nonmetal Inorganic materials 0.000 claims description 6
- 230000002787 reinforcement Effects 0.000 claims description 6
- 229920003020 cross-linked polyethylene Polymers 0.000 claims description 4
- 239000004703 cross-linked polyethylene Substances 0.000 claims description 4
- 238000009413 insulation Methods 0.000 claims description 3
- 230000005693 optoelectronics Effects 0.000 claims 7
- 230000000903 blocking effect Effects 0.000 claims 5
- 239000010410 layer Substances 0.000 abstract description 61
- 230000003139 buffering effect Effects 0.000 abstract description 17
- 239000011241 protective layer Substances 0.000 abstract description 10
- 230000003014 reinforcing effect Effects 0.000 description 4
- 238000009529 body temperature measurement Methods 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- 239000011810 insulating material Substances 0.000 description 2
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 239000003063 flame retardant Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B9/00—Power cables
- H01B9/005—Power cables including optical transmission elements
-
- 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
- H01B11/22—Cables including at least one electrical conductor together with optical fibres
-
- 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
Landscapes
- Communication Cables (AREA)
- Insulated Conductors (AREA)
Abstract
The invention discloses a light-duty insulating photoelectric composite alternating-current power cable for 110kV rail transit, which comprises a conductor, a shielding structure, a semiconductive buffering water-blocking layer, a corrugated aluminum sheath and a non-metallic outer protective layer, wherein the shielding structure, the semiconductive buffering water-blocking layer, the corrugated aluminum sheath and the non-metallic outer protective layer are sequentially wrapped on the conductor from inside to outside; the shielding structure consists of a conductor shielding layer, an insulating layer and an insulating shielding layer, wherein the conductor shielding layer, the insulating layer and the insulating shielding layer are sequentially connected from inside to outside, and the conductor shielding layer adopts a structure of wrapping a semi-conducting belt and extruding the semi-conducting layer; two light units are installed in the semi-conductive buffer water-blocking layer. Through the mode, the temperature measuring optical cable is arranged in the light insulating photoelectric composite alternating current power cable for 110kV rail transit, and the problems of heavy weight, long and short coils, many joints, difficulty in laying, running and overhauling and high cost of the traditional high-voltage power cable are solved.
Description
Technical Field
The invention belongs to the field of power cables, and particularly relates to a light-weight insulated photoelectric composite alternating-current power cable for 110kV rail transit.
Background
The China has abundant land resources and developed traffic systems, the resources are actively developed all over the country in recent years, and the development of railway land traffic systems is actively accelerated, so that more and more rail traffic projects are planned every year.
The high-voltage cable purchased in the current domestic rail transit is still the traditional thick insulation flame-retardant cable, the voltage grade is basically 110kV power cable, the general underground engineering quantity of the rail transit project is far greater than the above-ground engineering quantity, and the temperature measuring optical cable is required to be laid separately in the special laying environments such as multiple tunnels, multiple bridge openings and the like for real-time monitoring during operation.
Aiming at the current situation, the problems of heavy weight, long and short disc, more joints, difficulty in laying, running and overhauling and high cost of the traditional high-voltage power cable occur.
Disclosure of Invention
The invention mainly solves the technical problem of providing a light-weight insulated photoelectric composite alternating-current power cable for 110kV rail transit, and can solve the problems of heavy weight, long and short coils, more joints, difficulty in laying, running and overhauling and high cost of the traditional high-voltage power cable.
In order to solve the technical problems, the invention adopts a technical scheme that: a light-duty insulating photoelectric composite alternating current power cable for 110kV rail transit comprises a conductor, a shielding structure, a semiconductive buffering water-blocking layer, a corrugated aluminum sheath and a non-metallic outer sheath, wherein the shielding structure, the semiconductive buffering water-blocking layer, the corrugated aluminum sheath and the non-metallic outer sheath are sequentially wrapped on the conductor from inside to outside;
the shielding structure consists of a conductor shielding layer, an insulating layer and an insulating shielding layer, wherein the conductor shielding layer, the insulating layer and the insulating shielding layer are sequentially connected from inside to outside, and the conductor shielding layer adopts a structure of wrapping a semi-conducting belt and extruding the semi-conducting layer;
the semi-conductive buffer water-blocking layer is internally provided with two light units, each light unit consists of a stainless steel pipe, two metal reinforcements and a semi-conductive outer protective layer, the stainless steel pipe and the metal reinforcements are arranged in the semi-conductive outer protective layers, and the two metal reinforcements are respectively positioned on two sides of the stainless steel pipe.
In a preferred embodiment of the invention, when each layer of monofilaments of the conductor are twisted, each layer of the monofilaments is wrapped with a layer of semi-conductive water-blocking tape from inside to outside.
In a preferred embodiment of the present invention, the insulation eccentricity of the shielding structure is less than or equal to 5%.
In a preferred embodiment of the present invention, the material of the insulating layer is an ultra-smooth XLPE material.
In a preferred embodiment of the present invention, the thickness of the insulating layer is 13.5 mm.
In a preferred embodiment of the invention, the semi-conductive buffering water-blocking layer is composed of two inner semi-conductive buffering water-blocking tapes, two light units and two outer semi-conductive buffering water-blocking tapes.
In a preferred embodiment of the invention, the thickness of the semi-conductive buffer water-blocking tape is 2 mm.
In a preferred embodiment of the present invention, the optical unit is a 4-core flat temperature measuring optical cable.
The invention has the beneficial effects that: according to the light-weight insulated photoelectric composite alternating-current power cable for 110kV rail transit, the temperature measuring optical cable is arranged in the power cable, and the problems that the traditional high-voltage power cable is heavy in weight, long in coil length, multiple in joint, difficult to lay, operate and overhaul and high in cost are solved.
Drawings
Fig. 1 is a schematic cross-sectional view of a light-duty insulated photoelectric composite alternating-current power cable for 110kV rail transit.
The parts in the drawings are numbered as follows: 1. a conductor; 2. a conductor shield layer; 3. an insulating layer; 4. an insulating shield layer; 5. a light unit; 6. a semiconductive buffer water-resistant layer; 7. a corrugated aluminum sheath; 8. a non-metallic outer jacket; 9. and a conductive layer.
Detailed Description
The following detailed description of the preferred embodiments of the present invention, taken in conjunction with the accompanying drawings, will make the advantages and features of the invention easier to understand by those skilled in the art, and thus will clearly and clearly define the scope of the invention.
Referring to fig. 1, an embodiment of the present invention includes: the light-duty insulating photoelectric composite alternating current power cable for 110kV rail transit comprises a conductor 1, a shielding structure, a semi-conductive buffering water-blocking layer 6, a corrugated aluminum sheath 7 and a non-metal outer protective layer 8, wherein the shielding structure, the semi-conductive buffering water-blocking layer 6, the corrugated aluminum sheath 7 and the non-metal outer protective layer 8 are sequentially wrapped on the conductor 1 from inside to outside, and each layer of semi-conductive water-blocking tape is wrapped around each layer of conductor 1 from inside to outside when each layer of single wires are twisted, so that the phenomenon that the conductor 1 is subjected to water inlet after the cable is damaged is avoided, the limitation of a complex environment is avoided, and the problem that the cable is subjected to water inlet.
The conductor 1 is a TR type copper conductor 1, the copper content is not lower than 99.97%, and the conductor 1 is of a compact circular structure.
The shielding structure comprises conductor shielding layer 2, insulating layer 3 and insulating shield layer 4, conductor shielding layer 2 the insulating layer 3 with insulating shield layer 4 connects gradually from inside to outside, conductor shielding layer 2 adopts around package semi-conductive area and crowded package semi-conductive layer structure, in the conductor shielding layer 2 crowded package semi-conductive layer insulating layer 3 with insulating shield layer 4 adopts the production of three-layer coextrusion equipment, has ensured shielding structure's insulating eccentricity is less than or equal to 5%.
The insulating layer 3 is made of an ultra-smooth XLPE material, and the thickness of the insulating layer 3 is 13.5 mm. The material can simultaneously meet the mechanical properties of the crosslinked polyethylene insulating material, does not reduce the service life index and the minimum breakdown strength of the cable, and improves the utilization rate of the material on the premise of ensuring the service life and the performance of the cable.
The semi-conductive buffer water-blocking layer 6 is internally provided with two light units 5, the semi-conductive buffer water-blocking layer 6 is composed of two layers of inner semi-conductive buffer water-blocking tapes, the two light units 5 and two layers of outer semi-conductive buffer water-blocking tapes, the thickness of each semi-conductive buffer water-blocking tape is 2mm, and the light units 5 are placed in gaps among the four layers of semi-conductive buffer water-blocking tapes, so that the light units 5 are prevented from being damaged by external mechanical force.
The light unit 5 is composed of a stainless steel pipe, two metal reinforcing parts and a semi-conductive outer protective layer, the stainless steel pipe and the metal reinforcing parts are installed in the semi-conductive outer protective layer, the two metal reinforcing parts are located on two sides of the stainless steel pipe respectively, the light unit 5 is horizontally placed in the semi-conductive buffer water-blocking tape up and down or left and right during wrapping of the semi-conductive buffer water-blocking tape, wrapping is uniform and round, and the two light units 5 are ensured to be placed oppositely.
The optical unit 5 is 4 core flat temperature measurement optical cables, and every the model of temperature measurement optical cable is 2 core B1 and 2 core A1a, and existing single mode fiber has multimode fiber again, satisfies multiple type height and requires the temperature measurement demand.
In this embodiment, the diameter of the stainless steel tube is 1.8mm, the metal reinforcing member is a metal wire, the diameter is 2mm, and the outer diameter of the light unit 5 is 7.0 × 2.9 mm.
The flat temperature measuring optical cable reduces the outer diameter of the wrapped semi-conductive buffering water-blocking tape, improves the roundness of the wrapped semi-conductive buffering water-blocking tape, and can ensure that the optical unit 5 is prevented from being damaged by buffering external force through the corrugated aluminum sheath 7 and the semi-conductive buffering water-blocking tape when external force is applied.
In a general high-voltage cable, the gap between the corrugated aluminum sheath 7 is relatively large, and because the corrugated aluminum sheath is corrugated, the gap between the corrugated aluminum sheath 7 and the semi-conductive buffering water-blocking tape is relatively large, and now the light unit 5 is filled between the semi-conductive buffering water-blocking tape and the corrugated aluminum sheath 7, and the number of layers of the semi-conductive buffering water-blocking tape is relatively large, so that the gap between the corrugated aluminum sheath 7 and the semi-conductive buffering water-blocking tape is reduced, and the electrical contact is better.
The non-metal outer protective layer 8 is made of a plastic material with single performance or comprehensive performance, such as high flame retardance, rat resistance, ant resistance, ultraviolet ray resistance, cracking resistance and the like.
The nonmetal outer protective layer 8 is provided with a conducting layer 9, and the conducting layer 9 is used for testing when the high-voltage cable is designed.
Compared with the prior art, the light-weight insulated photoelectric composite alternating-current power cable for 110kV rail transit is provided with the temperature measuring optical cable, and solves the problems of heavy weight, long and short coils, many joints, difficulty in laying, running and overhauling and high cost of the traditional high-voltage power cable.
Compared with the traditional power cable, the utilization rate of the insulating material of the power cable per kilometer is improved by 23-63%, the cost of the cable material per kilometer is reduced by 4-17%, the outer diameter of the cable is reduced by 3-8mm, the coiling length of a single cable is more than 1 km/coil, no joint is realized within 1km, the length of the single coil of the power cable is increased by about 100-300m compared with that of the conventional insulating cable, after the outer diameter and the weight of the cable are reduced, the price and the transportation cost of the cable related to the cable are reduced, the laying is more convenient and rapid, after the length of the single coil of the cable is lengthened, the number of middle joints of a line is reduced, the joint failure rate is reduced, the system stability is improved, the system design is optimized, after photoelectric combination, independent purchasing and temperature measuring optical cables are not.
In the description of the present invention, it should be noted that the terms "upper", "lower", "left", "right", "inner", "outer", and the like indicate orientations or positional relationships based on orientations or positional relationships shown in the drawings or orientations or positional relationships that are conventionally arranged when the products of the present invention are used, and are used for convenience of description and simplicity of description only, and do not indicate or imply that the devices or elements indicated must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.
The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes performed by the present specification and drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (8)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011407683.4A CN112542268A (en) | 2020-12-04 | 2020-12-04 | Light-duty insulating photoelectric composite alternating current power cable for 110kV rail transit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011407683.4A CN112542268A (en) | 2020-12-04 | 2020-12-04 | Light-duty insulating photoelectric composite alternating current power cable for 110kV rail transit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112542268A true CN112542268A (en) | 2021-03-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011407683.4A Pending CN112542268A (en) | 2020-12-04 | 2020-12-04 | Light-duty insulating photoelectric composite alternating current power cable for 110kV rail transit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112542268A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115910440A (en) * | 2022-11-25 | 2023-04-04 | 重庆泰山电缆有限公司 | A 110kV light cross-linked polyethylene insulated high-voltage cable and its manufacturing method |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201122456Y (en) * | 2007-11-30 | 2008-09-24 | 青岛汉缆股份有限公司 | High voltage power cable with built-in temperature measurement optical cable |
| KR20110125923A (en) * | 2010-05-14 | 2011-11-22 | 엘에스전선 주식회사 | Optical power composite cable |
| CN102496414A (en) * | 2011-11-25 | 2012-06-13 | 成都亨通光通信有限公司 | High-voltage shielded flexible cable |
| CN106128626A (en) * | 2016-08-29 | 2016-11-16 | 中天科技海缆有限公司 | ± 500kV SZ shape molded line conductor corrugated aluminium sheath Optical Fiber Composite direct current cables |
| CN206003534U (en) * | 2016-08-31 | 2017-03-08 | 中天科技海缆有限公司 | A kind of waterproofing type 220kV cross-linked polyethylene insulated double-sheath power cable |
| CN206471149U (en) * | 2017-01-23 | 2017-09-05 | 常州安凯特电缆有限公司 | A kind of novel belt optical fiber power cable |
| CN213660059U (en) * | 2020-12-04 | 2021-07-09 | 江苏亨通高压海缆有限公司 | Light-duty insulating photoelectric composite alternating current power cable for 110kV rail transit |
-
2020
- 2020-12-04 CN CN202011407683.4A patent/CN112542268A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201122456Y (en) * | 2007-11-30 | 2008-09-24 | 青岛汉缆股份有限公司 | High voltage power cable with built-in temperature measurement optical cable |
| KR20110125923A (en) * | 2010-05-14 | 2011-11-22 | 엘에스전선 주식회사 | Optical power composite cable |
| CN102496414A (en) * | 2011-11-25 | 2012-06-13 | 成都亨通光通信有限公司 | High-voltage shielded flexible cable |
| CN106128626A (en) * | 2016-08-29 | 2016-11-16 | 中天科技海缆有限公司 | ± 500kV SZ shape molded line conductor corrugated aluminium sheath Optical Fiber Composite direct current cables |
| CN206003534U (en) * | 2016-08-31 | 2017-03-08 | 中天科技海缆有限公司 | A kind of waterproofing type 220kV cross-linked polyethylene insulated double-sheath power cable |
| CN206471149U (en) * | 2017-01-23 | 2017-09-05 | 常州安凯特电缆有限公司 | A kind of novel belt optical fiber power cable |
| CN213660059U (en) * | 2020-12-04 | 2021-07-09 | 江苏亨通高压海缆有限公司 | Light-duty insulating photoelectric composite alternating current power cable for 110kV rail transit |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115910440A (en) * | 2022-11-25 | 2023-04-04 | 重庆泰山电缆有限公司 | A 110kV light cross-linked polyethylene insulated high-voltage cable and its manufacturing method |
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