CN220358804U - Outdoor terminal of oil-filled insulating sleeve - Google Patents
Outdoor terminal of oil-filled insulating sleeve Download PDFInfo
- Publication number
- CN220358804U CN220358804U CN202321990725.0U CN202321990725U CN220358804U CN 220358804 U CN220358804 U CN 220358804U CN 202321990725 U CN202321990725 U CN 202321990725U CN 220358804 U CN220358804 U CN 220358804U
- Authority
- CN
- China
- Prior art keywords
- cable
- insulating
- sleeved
- insulating sleeve
- oil
- 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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- 239000004020 conductor Substances 0.000 claims abstract description 22
- 238000009413 insulation Methods 0.000 claims abstract description 22
- 239000012212 insulator Substances 0.000 claims abstract description 19
- 239000000565 sealant Substances 0.000 claims abstract description 12
- 239000003292 glue Substances 0.000 claims abstract description 10
- 239000000463 material Substances 0.000 claims abstract description 10
- 229910052573 porcelain Inorganic materials 0.000 claims abstract description 10
- 239000002184 metal Substances 0.000 claims description 17
- 238000007789 sealing Methods 0.000 claims description 16
- 229920002367 Polyisobutene Polymers 0.000 claims description 5
- 229920001971 elastomer Polymers 0.000 claims 1
- 230000032683 aging Effects 0.000 abstract description 9
- 238000010292 electrical insulation Methods 0.000 abstract description 8
- 230000001070 adhesive effect Effects 0.000 abstract description 6
- 238000007711 solidification Methods 0.000 abstract description 2
- 230000008023 solidification Effects 0.000 abstract description 2
- 230000002542 deteriorative effect Effects 0.000 abstract 1
- 239000003921 oil Substances 0.000 description 22
- 230000015556 catabolic process Effects 0.000 description 3
- 239000000853 adhesive Substances 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 230000018109 developmental process Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 229920003020 cross-linked polyethylene Polymers 0.000 description 1
- 239000004703 cross-linked polyethylene Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 229920002379 silicone rubber Polymers 0.000 description 1
- 229920001169 thermoplastic Polymers 0.000 description 1
- 239000004416 thermosoftening plastic Substances 0.000 description 1
Classifications
-
- 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
- Cable Accessories (AREA)
Abstract
The utility model relates to the technical field of oil-filled terminals, and discloses an outdoor terminal of an oil-filled insulating sleeve, which comprises a mounting plate, wherein the mounting plate is sleeved with an insulating sleeve, the top end surface of the mounting plate is fixedly connected with a porcelain sleeve, a cable conductor is sleeved in the porcelain sleeve, and an insulating assembly is sleeved on the outer side of the cable conductor. Through lead-lined, seal cover, waterproof tape one, the waterproof tape two of sealant user that set up, keep apart cable conductor and insulator, mounting panel, insulating cover and cable oversheath multilayer, wherein the material of sealant is RTV glue, and RTV has good adhesive property, and solidification thing electrical insulation performance is good, has good electrical insulation and arc resistance, and ageing-resistant improves the leakproofness of sheath, prevents that the leakproofness from deteriorating along with the ageing of material. The cable insulation shielding layer is sleeved on the outer wall of the cable main insulation, so that the cable can be protected from the influence of external environment, and meanwhile, electromagnetic interference inside the cable is prevented.
Description
Technical Field
The utility model relates to the technical field of oil-filled terminals, in particular to an outdoor terminal of an oil-filled insulating sleeve.
Background
Along with the rapid development of power construction and the continuous increase of power demand in China, the construction of high-voltage and ultra-high-voltage power grids is particularly important. Under such circumstances, the demand for crosslinked polyethylene insulated power cables of 66kV and above is increasing, and rapid development of cable accessories is also being accelerated. Cable outdoor terminals are a major part of them by means of which an underground cable can be reliably connected to a high voltage transmission line on a high voltage transmission tower. At present, cable terminal products mainly comprise full-dry type silicon rubber outdoor terminals and oil-filled terminals, wherein the oil-filled terminals are most widely applied.
The oil-filled terminal has the main functions of connecting the cable and the equipment, and simultaneously has the functions of sealing and insulating. The inside of the oil-filled cable terminal is usually filled with insulating oil, and the oil has excellent insulating property and thermal stability, can effectively protect cables and equipment from the influence of external environment, and can also dissipate heat and cool the cables.
However, in the actual use process of the equipment, a wrapping waterproof belt and a common O-shaped sealing ring are mainly adopted, but the tightness of the method cannot be effectively ensured, and the oil leakage risk is easy to occur at the position where the fixing plate is arranged; in view of this, we propose an oil filled insulating sleeve outdoor termination.
Disclosure of Invention
The utility model aims to provide an outdoor terminal of an oil-filled insulating sleeve, which aims to solve the problems in the background technology.
In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides an oil-filled insulating sleeve outdoor termination, includes the mounting panel, the mounting panel has cup jointed the insulating sleeve, the top terminal surface fixedly connected with insulator of mounting panel, the cable conductor has been cup jointed to the insulator in the insulator, insulating subassembly has been cup jointed in cable conductor's the outside, insulating subassembly is including semiconductive belt one, semiconductive belt one has been cup jointed in semiconductive belt one's the outside cable main insulation, cable main insulation has cup jointed cable metal sheath in the one end of semiconductive belt one of keeping away from, cable metal sheath cup joints with the insulator, cable metal sheath keeps away from cable main insulation's one end fixedly connected with cable oversheath. Lead is filled between the cable metal sheath and the insulating sleeve, the connecting part of the cable main insulation and the insulating sleeve is sleeved with the sealing sleeve, the connecting part of the semi-conductive belt I and the cable main insulation is sleeved with the waterproof belt I, the connecting part of the porcelain sleeve and the cable conductor is filled with sealant, and the connecting part of the insulating sleeve and the side wall of the cable outer sheath is sleeved with the waterproof belt II.
Optionally, the outer wall of the main insulation of the cable is sleeved with a cable insulation shielding layer, so that the cable can be protected from the influence of external environment, and electromagnetic interference inside the cable is prevented. The insulating layer is the innermost layer of the cable and mainly plays a role in isolating the conductor from the outside. The shielding layer is a layer outside the insulating layer and mainly plays a role in shielding signals inside the cable.
Optionally, the porcelain bushing is filled with insulating oil, the insulating oil is made of polyisobutylene, and the polyisobutylene does not contain a waxy substance and has good electrical characteristics.
Optionally, the material of sealant is RTV glues, the sealant sets up in a plurality of part junctions, and RTV has good adhesive property, and the condensate electrical insulation performance is good, has good electrical insulation and arc resistance, ageing-resistant, dampproofing, has good adhesive property, can improve the leakproofness of sheath through the RTV glues.
Optionally, a second semi-conductive band is arranged between the cable main insulation and the cable metal sheath.
Optionally, the side wall of the insulating sleeve is hinged with a grounding cable, and the grounding end of the cable is connected with the grounding grid so as to ensure safe operation of the cable.
Compared with the prior art, the utility model provides an oil-filled insulating sleeve outdoor terminal, which has the following beneficial effects:
1. this oil-filled insulating sleeve outdoor termination, in order to avoid the leakproofness to lead to the leakproofness variation along with the ageing of material, lead-lined, the seal cover, waterproof tape one, the waterproof tape two of sealant user through setting up, with cable conductor and insulator, the mounting panel, insulating sleeve and cable oversheath multilayer isolation, wherein the material of sealant is RTV glue, RTV has good adhesive property, solidification thing electrical insulation performance is good, have good electrical insulation and arc resistance, ageing-resistant, improve the leakproofness of sheath, prevent that the leakproofness from leading to the leakproofness variation along with the ageing of material, and then lead to the seepage, take place the accident of terminal breakdown.
2. This oil-filled insulating sleeve outdoor termination, in order to improve the stability at terminal, cable insulation shielding layer has been cup jointed to the outer wall of cable main insulation, can protect the cable from external environment's influence, prevents the inside electromagnetic interference of cable simultaneously. The insulating layer is the innermost layer of the cable and mainly plays a role in isolating the conductor from the outside. The shielding layer is a layer outside the insulating layer and mainly plays a role in shielding signals inside the cable.
Drawings
FIG. 1 is a schematic diagram of the main structure of the present utility model;
FIG. 2 is a schematic view of the structure of the area A of the present utility model;
FIG. 3 is a schematic view of the structure of the B region of the present utility model.
In the figure: 1. sealing glue; 2. a cable conductor; 3. a first semiconductive belt; 4. a waterproof belt I; 5. the cable is insulated mainly; 6. insulating oil; 7. a cable insulation shield layer; 8. sealing sleeve; 9. a second semi-conductive band; 10. a cable metal sheath; 11. a ground cable; 12. lead lining; 13. a waterproof belt II; 14. an outer cable sheath; 15. a porcelain bushing; 16. a mounting plate; 17. an insulating sleeve.
Detailed Description
As shown in fig. 1-3, the present utility model provides a technical solution: the utility model provides an oil-filled insulating sleeve outdoor termination, includes mounting panel 16, and mounting panel 16 cup joints insulating sleeve 17, and the top terminal surface fixedly connected with insulator 15 of mounting panel 16, insulator 15 intussuseption are filled with insulating oil 6, and insulating oil 6's material is the polyisobutylene, and the polyisobutylene does not contain waxy substance and has good electrical property. The cable conductor 2 has been cup jointed in the insulator 15, insulating subassembly has been cup jointed in cable conductor 2's the outside, insulating subassembly has cup jointed semiconductive belt one 3 including semiconductive belt one 3 in cable conductor 2's the outside, semiconductive belt one 3's the outside has cup jointed cable main insulation 5, cable main insulation 5 has cup jointed cable metal sheath 10 in keeping away from semiconductive belt one 3's one end, cable metal sheath 10 cup joints with insulating sheath 17, cable metal sheath 10 is kept away from cable main insulation 5's one end fixedly connected with cable oversheath 14. Lead 12 is filled between the cable metal sheath 10 and the insulating sleeve 17, the sealing sleeve 8 is sleeved at the connecting part of the cable main insulating sleeve 5 and the insulating sleeve 17, the waterproof belt 4 is sleeved at the connecting part of the semi-conductive belt 3 and the cable main insulating sleeve 5, the sealing glue 1 is filled at the connecting part of the porcelain sleeve 15 and the cable conductor 2, the sealing glue 1 is made of RTV (real time kinematic) glue, and the sealing glue 1 is arranged at the connecting part of a plurality of parts. The connecting part of the insulating sleeve 17 and the side wall of the cable outer sheath 14 is sleeved with a waterproof second belt 13. A second semiconducting tape 9 is arranged between the cable main insulation 5 and the cable metal sheath 10. The side wall of the insulating sleeve 17 is hinged with a grounding cable 11, and the grounding end of the cable is connected with a grounding grid so as to ensure safe operation of the cable.
In one embodiment of the utility model, the cable conductor 2, the porcelain bushing 15, the mounting plate 16, the insulating sleeve 17 and the cable outer sheath 14 are isolated in multiple layers by the lead 12, the sealing sleeve 8, the waterproof tape I4 and the waterproof tape II 13 of the sealant 1, wherein the sealant 1 is made of RTV (real time thermoplastic) adhesive, the RTV has good bonding property, the cured product has excellent electrical insulation property, good electrical insulation property and arc resistance, ageing resistance and moisture resistance, and good bonding property, the sealing property of the sheath can be improved by the RTV adhesive, and the sealing property is prevented from being deteriorated along with the ageing of materials, thus leakage is caused, and the accident of terminal breakdown occurs.
In addition, in order to improve the stability of the terminal, the outer wall of the cable main insulation 5 is sleeved with the cable insulation shielding layer 7, so that the cable can be protected from the external environment, and electromagnetic interference inside the cable is prevented. The insulating layer is the innermost layer of the cable and mainly plays a role in isolating the conductor from the outside. The shielding layer is a layer outside the insulating layer and mainly plays a role in shielding signals inside the cable.
In the utility model, when in use, the cable conductor 2 is isolated from the porcelain sleeve 15, the mounting plate 16, the insulating sleeve 17 and the cable outer sheath 14 in multiple layers through the lead 12, the sealing sleeve 8, the waterproof tape I4 and the waterproof tape II 13 of the sealant 1, so as to prevent leakage and terminal breakdown accidents caused by poor sealing performance caused by ageing of materials. The outer wall of the cable main insulation 5 is sleeved with the cable insulation shielding layer 7, so that the cable can be protected from the influence of external environment, and meanwhile, electromagnetic interference inside the cable is prevented.
The foregoing utility model has been generally described in great detail, but it will be apparent to those skilled in the art that modifications and improvements can be made thereto. Accordingly, it is intended to cover modifications or improvements within the spirit of the inventive concepts.
Claims (6)
1. The utility model provides an oil-filled insulating sleeve outdoor termination, includes mounting panel (16), insulating sleeve (17) have been cup jointed to mounting panel (16), the top terminal surface fixedly connected with insulator (15) of mounting panel (16), cable conductor (2), its characterized in that have been cup jointed in insulator (15): the cable conductor is characterized in that an insulating assembly is sleeved outside the cable conductor (2), the insulating assembly comprises a semi-conductive strip I (3), the semi-conductive strip I (3) is sleeved outside the cable conductor (2), a cable main insulator (5) is sleeved outside the semi-conductive strip I (3), a cable metal sheath (10) is sleeved at one end of the cable main insulator (5) far away from the semi-conductive strip I (3), the cable metal sheath (10) is sleeved with an insulating sleeve (17), a cable outer sheath (14) is fixedly connected to one end of the cable metal sheath (10) far away from the cable main insulator (5), lead lining (12) is filled between the cable metal sheath (10) and the insulating sleeve (17), a sealing sleeve (8) is sleeved at the connecting part of the cable main insulator (5) and the cable main insulator (5), a waterproof porcelain sleeve (4) is sleeved at the connecting part of the semi-conductive strip I (3) and the cable main insulator (5), a sealing rubber (1) is filled at the connecting part of the cable metal sheath (15) and the cable conductor (2), and a waterproof sleeve (17) is sleeved at the connecting part of the cable main insulator (17) and the cable main insulating sleeve (13).
2. An oil filled insulating sleeve outdoor termination according to claim 1, wherein: the outer wall of the cable main insulator (5) is sleeved with a cable insulating shielding layer (7).
3. An oil filled insulating sleeve outdoor termination according to claim 1, wherein: insulating oil (6) is filled in the porcelain sleeve (15), and the insulating oil (6) is made of polyisobutylene.
4. An oil filled insulating sleeve outdoor termination according to claim 1, wherein: the material of sealant (1) is RTV glue, and sealant (1) sets up in a plurality of part junctions.
5. An oil filled insulating sleeve outdoor termination according to claim 1, wherein: a second semi-conductive belt (9) is arranged between the cable main insulation (5) and the cable metal sheath (10).
6. An oil filled insulating sleeve outdoor termination according to claim 1, wherein: the side wall of the insulating sleeve (17) is hinged with a grounding cable (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321990725.0U CN220358804U (en) | 2023-07-27 | 2023-07-27 | Outdoor terminal of oil-filled insulating sleeve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321990725.0U CN220358804U (en) | 2023-07-27 | 2023-07-27 | Outdoor terminal of oil-filled insulating sleeve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220358804U true CN220358804U (en) | 2024-01-16 |
Family
ID=89479785
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321990725.0U Active CN220358804U (en) | 2023-07-27 | 2023-07-27 | Outdoor terminal of oil-filled insulating sleeve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220358804U (en) |
-
2023
- 2023-07-27 CN CN202321990725.0U patent/CN220358804U/en active Active
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |