CN219066493U - Equipotential treatment equipment for optical fiber reinforced core of photoelectric composite high-voltage cable - Google Patents
Equipotential treatment equipment for optical fiber reinforced core of photoelectric composite high-voltage cable Download PDFInfo
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- CN219066493U CN219066493U CN202223294689.2U CN202223294689U CN219066493U CN 219066493 U CN219066493 U CN 219066493U CN 202223294689 U CN202223294689 U CN 202223294689U CN 219066493 U CN219066493 U CN 219066493U
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- China
- Prior art keywords
- optical fiber
- temperature measuring
- cable
- sheath
- fiber reinforced
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- 239000013307 optical fiber Substances 0.000 title claims abstract description 66
- 239000002131 composite material Substances 0.000 title claims abstract description 11
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 27
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 27
- 238000009413 insulation Methods 0.000 claims abstract description 17
- 239000004020 conductor Substances 0.000 claims abstract description 12
- 230000003014 reinforcing effect Effects 0.000 claims description 17
- 239000000835 fiber Substances 0.000 claims description 4
- 238000010438 heat treatment Methods 0.000 abstract description 3
- 239000010410 layer Substances 0.000 description 15
- 239000000463 material Substances 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 3
- 239000011241 protective layer Substances 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 150000001336 alkenes Chemical class 0.000 description 2
- 239000012212 insulator Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- QPLDLSVMHZLSFG-UHFFFAOYSA-N Copper oxide Chemical compound [Cu]=O QPLDLSVMHZLSFG-UHFFFAOYSA-N 0.000 description 1
- 239000005751 Copper oxide Substances 0.000 description 1
- 229910000676 Si alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- -1 aluminum-magnesium-silicon Chemical compound 0.000 description 1
- 239000010426 asphalt Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000009529 body temperature measurement Methods 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 229910000431 copper oxide Inorganic materials 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Images
Classifications
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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
- H01B11/22—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
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/02—Disposition of insulation
-
- 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
-
- 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
-
- 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
- H01B7/20—Metal tubes, e.g. lead sheaths
-
- 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
-
- 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
- H01B7/32—Insulated conductors or cables characterised by their form with arrangements for indicating defects, e.g. breaks or leaks
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B9/00—Power cables
-
- 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
Landscapes
- Measuring Temperature Or Quantity Of Heat (AREA)
- Communication Cables (AREA)
Abstract
The utility model relates to equipotential treatment equipment for an optical fiber reinforced core of a photoelectric composite high-voltage cable, which sequentially comprises a cable outer sheath, an aluminum sheath, an outer semiconductive layer, a main insulation and a cable conductor from an outer layer to an inner layer, wherein the cable outer sheath, the aluminum sheath, the outer semiconductive layer, the main insulation and the cable conductor are arranged in a ladder-shaped structure, the aluminum sheath is connected with the optical fiber reinforced core for measuring temperature, and an optical fiber splicing box is fixedly arranged on the outer side wall of the cable outer sheath; a temperature measuring optical fiber is arranged in the temperature measuring optical fiber reinforced core, and the other end of the temperature measuring optical fiber is connected to the optical fiber splicing box; the problem that the temperature measuring optical fiber is damaged due to heating and the main insulation is damaged can be avoided by forming a ground circulation through the temperature measuring optical fiber reinforced core.
Description
Technical Field
The utility model relates to equipotential processing equipment for an optical fiber reinforced core of a photoelectric composite high-voltage cable, and belongs to the technical field of power equipment.
Background
In a power transmission system constituted by a single-core power cable, the relationship between the cable conductor and the sheath can be regarded as an air-core transformer. When alternating current flows through the single-core cable core, an alternating magnetic field is necessarily generated around the alternating current, and induced electromotive force is generated on the metal sheath. However, for the single-core cable, due to the existence of the induced voltage, if a mode of grounding at two ends is adopted, circulation current occurs, so that the two ends of the single-core cable should not be grounded. However, when the metal sheath has one end not grounded, the cable sheath is not grounded to generate high induced overvoltage when lightning strike or short circuit occurs, and the voltage acts on the insulation of the outer sheath. When the cable outer sheath insulation cannot withstand the overvoltage and is damaged, multipoint grounding occurs, and circulation is formed.
In the prior art, cable termination constructors lead out the reinforcing core and the optical fiber from the tail pipe together, fix the reinforcing core in the optical fiber welding box or outside, the reinforcing core is made of aluminum-magnesium-silicon alloy material, and the protective layer is made of semiconductive PE material and is easy to damage. If the broken reinforcing core is in contact with the aluminum sheath or the tail pipe, the reinforcing core and the tail pipe are connected in an equipotential manner, and the same induced voltage is generated. The optical fiber reinforcing core is fixed on the steel support, the steel support is directly grounded, if the damaged reinforcing core is in contact conduction with the steel support, the aluminum sheath forms two-point grounding through the optical fiber reinforcing core and the grounding wire in the direct grounding box, the reinforcing core becomes a path for grounding circulation, larger circulation is generated, the reinforcing core can be caused to generate heat and even burn out, the main insulation of a burning-out cable is seriously caused, and cable breakdown accidents are caused, and the type of faults have occurred more frequently in China. Therefore, it is very interesting to design a device that can avoid the formation of a ground circulation through the fiber reinforcement core, thereby causing a heating damage to the fiber and a main insulation damage.
Disclosure of Invention
In order to solve the problems in the prior art, the utility model provides equipotential processing equipment for an optical fiber reinforced core of a photoelectric composite high-voltage cable, which can avoid the problem that the optical fiber is heated and damaged and the main insulation is damaged by forming a ground circulation through the optical fiber reinforced core for measuring temperature.
The technical scheme of the utility model is as follows:
the equipotential treatment equipment of the optical fiber reinforced core of the photoelectric composite high-voltage cable sequentially comprises a cable outer sheath, an aluminum sheath, an outer semiconductive layer, a main insulator and a cable conductor from the outer layer to the inner layer, wherein the cable outer sheath, the aluminum sheath, the outer semiconductive layer, the main insulator and the cable conductor are arranged in a ladder-shaped structure, the aluminum sheath is connected with the temperature-measuring optical fiber reinforced core, and an optical fiber splicing box is fixedly arranged on the outer side wall of the cable outer sheath; the temperature measuring optical fiber reinforcing core is internally provided with a temperature measuring optical fiber, and the other end of the temperature measuring optical fiber is connected to the optical fiber splicing box.
Wherein, the temperature measuring optical fibers are provided with a pair of which are closely and symmetrically attached to each other.
Wherein, the outer layer of temperature measurement optic fibre is provided with the enhancement core protective layer.
One end of the temperature measuring optical fiber reinforced core is welded at the fracture of the aluminum sheath, and the other end of the temperature measuring optical fiber reinforced core is welded on the outer side wall of the aluminum sheath.
The utility model has the following beneficial effects:
the temperature measuring optical fiber reinforcing core is welded to the aluminum sheath, and is led out and spliced on the optical fiber splicing box, so that the temperature measuring optical fiber reinforcing core is not led out through the tail pipe, the ground circulation formed by the temperature measuring optical fiber reinforcing core is avoided, and the heating damage and the main insulation damage of the temperature measuring optical fiber are further avoided.
Drawings
FIG. 1 is a schematic diagram of the overall structure of the present utility model;
fig. 2 is a cross-sectional view of portion a of fig. 1 in accordance with the present utility model.
The reference numerals in the drawings are as follows:
1. an outer cable sheath; 2. an aluminum sheath; 3. an outer semiconductive layer; 4. a main insulation; 5. a cable conductor; 6. a temperature measuring optical fiber reinforced core; 7. a temperature measuring optical fiber; 8. a reinforcing core protective layer; 9. the optical fiber splice box.
Detailed Description
The utility model will now be described in detail with reference to the drawings and to specific embodiments.
Referring to fig. 1, the utility model provides a technical scheme:
the equipotential treatment equipment of the optical fiber reinforced core of the photoelectric composite high-voltage cable sequentially takes a ladder-shaped structure from the outer layer to the inner layer, and comprises a cable outer sheath 1, an aluminum sheath 2, an outer semiconductive layer 3, a main insulation 4 and a cable conductor 5, wherein the aluminum sheath 2 is connected with a temperature-measuring optical fiber reinforced core 6, and an optical fiber splicing box 9 is fixedly arranged on the outer side wall of the cable outer sheath 1; the temperature measuring optical fiber 7 is arranged in the temperature measuring optical fiber reinforced core 6, and the other end of the temperature measuring optical fiber 7 is connected to the optical fiber splicing box 9.
Further, the temperature measuring optical fibers 7 are provided with a pair and are closely and symmetrically attached to each other.
Further, the outer layer of the temperature measuring optical fiber 7 is provided with a reinforced core protection layer 8.
Further, one end of the temperature measuring optical fiber reinforced core 6 is welded at the fracture of the aluminum sheath 2, and the other end is welded on the outer side wall of the aluminum sheath 2.
Working principle example:
the temperature measuring optical fiber reinforced core 6 is welded at the fracture of the aluminum sheath 2, the temperature measuring optical fiber reinforced core 6 is welded on the aluminum sheath 2, the optical fiber reinforced core 6 is connected with the aluminum sheath 2 and the tail pipe in an equipotential manner, the temperature measuring optical fiber reinforced core 6 is not led out through the tail pipe, the situation that the temperature measuring optical fiber reinforced core 6 forms a grounding loop is avoided, the situation that the temperature measuring optical fiber 7 is heated and damaged, the main insulation 4 is damaged is avoided, the integrity of the tail pipe is damaged due to the fact that the opening of the tail pipe is avoided, and the problem that a cable terminal is wetted due to poor sealing caused by the opening is reduced.
The sheath material of the cable outer sheath 1 is ≡density poly ≡alkene, and the density is not ≡0.95g/cm3. The nominal thickness is 5.0mm, and the thinnest point thickness is not ≡95% of the nominal thickness. The conductive layer which is uniform, firm and good in continuity is selected from the ≡sheath table ≡, and the ≡extrusion type conductive layer is preferred.
The outer wall of the aluminum sheath 2 is provided with a ripple which is spiral. Aluminum sheath 2 table ≡has a cable asphalt corrosion resistant coating. A semi-conductive resistance ∈expansion band must be wrapped between the aluminum sheath 2 and the insulating shield to ensure good electrical ∈s connection and longitudinal resistance ∈s between ∈s.
The outer semiconductive layer 3 is an insulating shield and is made of a cross-linkable semiconductive material which is ultra-smooth and is made of ∈pottery ∈. The extruded semiconductive layer was uniformly coated on an insulation sheet ≡and the extruded insulation shield had a nominal thickness of 1.0mm.
The insulating material of the main insulating 4 adopts ≡northern europe ≡or united states (or ≡present) pottery ≡ultra-purification cross-linked poly ≡alkene material. The insulation nominal thickness is not ≡24mm.
The cable conductor 5 is ≡copper oxide, and the cable conductor is ≡split conductor of 1000mm2 or above.
The foregoing description is only illustrative of the present utility model and is not intended to limit the scope of the utility model, and all equivalent structures or equivalent processes or direct or indirect application in other related technical fields are included in the scope of the present utility model.
Claims (4)
1. The utility model provides a photoelectric composite high tension cable optic fibre strengthens core equipotential treatment facility which characterized in that: the cable comprises a cable outer sheath (1), an aluminum sheath (2), an outer semiconductive layer (3), a main insulation (4) and a cable conductor (5) from an outer layer to an inner layer, wherein the cable outer sheath (1), the aluminum sheath (2), the outer semiconductive layer (3), the main insulation (4) and the cable conductor (5) are arranged in a ladder-shaped structure, a temperature measuring optical fiber reinforcing core (6) is connected to the aluminum sheath (2), and an optical fiber splicing box (9) is fixedly arranged on the outer side wall of the cable outer sheath (1); the temperature measuring optical fiber reinforcing core (6) is internally provided with a temperature measuring optical fiber (7), and the other end of the temperature measuring optical fiber (7) is connected to the optical fiber splicing box (9).
2. The equipotential processing device for an optical fiber reinforced core of an optical-electrical composite high-voltage cable according to claim 1, wherein: the temperature measuring optical fibers (7) are provided with a pair of optical fibers which are closely and symmetrically attached to each other.
3. The equipotential processing device for an optical fiber reinforced core of an optical-electrical composite high-voltage cable according to claim 1, wherein: the outer layer of the temperature measuring optical fiber (7) is provided with a reinforced core protection layer (8).
4. The equipotential processing device for an optical fiber reinforced core of an optical-electrical composite high-voltage cable according to claim 1, wherein: one end of the temperature measuring optical fiber reinforced core (6) is welded at the fracture of the aluminum sheath (2), and the other end is welded on the outer side wall of the aluminum sheath (2).
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223294689.2U CN219066493U (en) | 2022-12-08 | 2022-12-08 | Equipotential treatment equipment for optical fiber reinforced core of photoelectric composite high-voltage cable |
| PCT/CN2023/083261 WO2024119667A1 (en) | 2022-12-08 | 2023-03-23 | Photoelectric composite high-voltage cable optical fiber reinforced core equipotential processing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223294689.2U CN219066493U (en) | 2022-12-08 | 2022-12-08 | Equipotential treatment equipment for optical fiber reinforced core of photoelectric composite high-voltage cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219066493U true CN219066493U (en) | 2023-05-23 |
Family
ID=86370717
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223294689.2U Active CN219066493U (en) | 2022-12-08 | 2022-12-08 | Equipotential treatment equipment for optical fiber reinforced core of photoelectric composite high-voltage cable |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN219066493U (en) |
| WO (1) | WO2024119667A1 (en) |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006059736A (en) * | 2004-08-23 | 2006-03-02 | Sumitomo Electric Ind Ltd | Metal sheath cable |
| CN101465533B (en) * | 2007-12-21 | 2012-07-04 | 上海波汇通信科技有限公司 | Installation method of high voltage power cable terminal |
| CN103824632A (en) * | 2014-02-14 | 2014-05-28 | 申环电缆科技有限公司 | Intelligent extra-high-voltage photoelectric composite cable with built-in optical fiber |
| CN212434318U (en) * | 2020-04-27 | 2021-01-29 | 江苏上上电缆集团有限公司 | Composite single-core power cable suitable for intelligent temperature measurement |
| CN213339821U (en) * | 2020-11-05 | 2021-06-01 | 江苏亨通高压海缆有限公司 | High-voltage and ultrahigh-voltage crosslinked polyethylene composite power cable |
-
2022
- 2022-12-08 CN CN202223294689.2U patent/CN219066493U/en active Active
-
2023
- 2023-03-23 WO PCT/CN2023/083261 patent/WO2024119667A1/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| WO2024119667A1 (en) | 2024-06-13 |
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