CN117095859B - Polypropylene insulation medium voltage power cable - Google Patents
Polypropylene insulation medium voltage power cable Download PDFInfo
- Publication number
- CN117095859B CN117095859B CN202310948483.7A CN202310948483A CN117095859B CN 117095859 B CN117095859 B CN 117095859B CN 202310948483 A CN202310948483 A CN 202310948483A CN 117095859 B CN117095859 B CN 117095859B
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- Prior art keywords
- cable body
- cable
- fixedly connected
- ground
- wear
- Prior art date
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- -1 Polypropylene Polymers 0.000 title claims abstract description 16
- 239000004743 Polypropylene Substances 0.000 title claims abstract description 14
- 229920001155 polypropylene Polymers 0.000 title claims abstract description 14
- 238000009413 insulation Methods 0.000 title claims abstract description 12
- 238000004804 winding Methods 0.000 claims abstract description 31
- 239000007788 liquid Substances 0.000 claims abstract description 12
- 238000002955 isolation Methods 0.000 claims abstract description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 13
- 239000002390 adhesive tape Substances 0.000 claims description 10
- 238000007789 sealing Methods 0.000 claims description 6
- 229910052742 iron Inorganic materials 0.000 claims description 4
- 239000000463 material Substances 0.000 claims description 3
- 230000001681 protective effect Effects 0.000 claims description 3
- 239000004576 sand Substances 0.000 claims description 3
- 229920006395 saturated elastomer Polymers 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 7
- 238000000034 method Methods 0.000 abstract description 6
- 238000005299 abrasion Methods 0.000 abstract description 3
- 230000002829 reductive effect Effects 0.000 abstract description 3
- 238000006073 displacement reaction Methods 0.000 abstract 1
- 238000009434 installation Methods 0.000 description 7
- 238000005253 cladding Methods 0.000 description 2
- 239000002131 composite material Substances 0.000 description 2
- 239000011810 insulating material Substances 0.000 description 2
- 230000001737 promoting effect Effects 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 239000013589 supplement Substances 0.000 description 2
- 229920000181 Ethylene propylene rubber Polymers 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 230000000670 limiting effect Effects 0.000 description 1
- 230000036961 partial effect Effects 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 230000002441 reversible effect Effects 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 229920001169 thermoplastic Polymers 0.000 description 1
- 239000004416 thermosoftening plastic Substances 0.000 description 1
Classifications
-
- 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
- H01B7/1855—Sheaths comprising helical wrapped non-metallic layers
-
- 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
-
- 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
-
- 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
- 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 relates to a polypropylene insulation medium voltage power cable, which can be spirally wound on the surface of the cable body through the arrangement of a ground isolation sleeve, so that the cable body is stably coated on the surface of the cable body, meanwhile, due to the arrangement of a ground contact strip, the part rubbed with the ground is converted onto the ground contact strip by the cable body in the dragging process, so that the cable body is effectively ensured not to directly contact with the ground, compared with the prior art, the abrasion suffered during dragging is greatly reduced, the potential safety hazard during electrifying and using is effectively avoided, in addition, the multi-point re-reinforcement of a spiral winding belt can be realized by matching with the arrangement of an adhesion assisting layer and magnetic liquid in the adhesion assisting layer, the connection stability of the spiral winding belt is effectively ensured, the dragging displacement is not easy, and the protection effect on the cable body is better.
Description
Technical Field
The invention relates to a medium-voltage power cable, in particular to a polypropylene insulation medium-voltage power cable applied to the field of insulation cables.
Background
The thermoplastic power cable insulating materials commonly used at present are polyethylene, ethylene propylene rubber, polypropylene-based composites and the like. The softening temperature of polyethylene and ethylene propylene rubber is low, and the requirement of high-temperature environment where a high-voltage cable is located in a long-distance and high-capacity transmission process cannot be met, so that the polypropylene-based composite material becomes a main research direction of a new-generation environment-friendly cable insulating material. However, when the cable is used, particularly when the cable is installed, the cable is always directly exposed on the ground, when the cable is installed and dragged, the cable skin on the surface of the cable can be damaged, the whole insulation effect is affected, and certain potential safety hazards exist when the cable is used subsequently.
In order to solve the problem of damage to the cable sheath caused by the installation and the dragging, a proposal jacket is generally laid on the ground by a paper box or sleeved on the ground during the actual installation so as to reduce the friction stress during the dragging.
However, because the towing amplitude and road conditions are uncertain during installation, and the sheath is only sleeved outside the cable, the cable is easy to shift, the protection effect on the cable is unstable, and the risk of damaging the cable skin still exists during the installation of the cable.
Content of the application
Aiming at the prior art, the invention aims to solve the technical problems that the cable is easy to be worn due to dragging during installation, the insulation is damaged, and certain potential safety hazard exists during electrifying and using.
In order to solve the problems, the invention provides a polypropylene insulation medium voltage power cable, which comprises a cable body, wherein a plurality of annular grooves are evenly distributed on the outer circle of the cable body, a ground separation sleeve is twisted and wound outside the cable body, the ground separation sleeve comprises two coiling strips and a coiling strip fixedly connected between the two coiling strips, the coiling strips are correspondingly matched with the annular grooves, the coiling strip comprises a spiral bottom sheet in contact with the surface of the cable body in an attaching way and a ground contact strip fixedly connected to the middle part of the end face of the spiral bottom sheet facing the outer side of the cable body, and a gecko-like layer is fixedly connected to the surface of one side of the spiral bottom sheet facing the cable body.
In the polypropylene insulation medium voltage power cable, through the arrangement of the ground isolation sleeve, the surface of the cable body can be spirally wound, so that the cable body is stably coated on the surface of the cable body, meanwhile, due to the arrangement of the ground contact strip, the part rubbed with the ground is converted onto the ground contact strip by the cable body in the dragging process, so that the cable body is effectively ensured not to be in direct contact with the ground, and compared with the prior art, the abrasion suffered during dragging is greatly reduced, and the potential safety hazard during power-on use is effectively avoided.
As a further development of the application, the winding belt is originally shaped as an elastic spiral structure, and the inner diameter of the spiral structure in the initial state of the winding belt is smaller than the outer diameter of the cable body.
As a still further improvement of the application, the looping strip comprises a wear-resistant piece, a pair of groove strips fixedly connected to the middle part of the wear-resistant piece and a film adhesive tape fixedly connected to one end of the wear-resistant piece, when the looping strip is used, the pair of groove strips are aligned with the annular groove and then the wear-resistant piece is controlled to loop along the annular groove, the looping strip is sleeved outside a cable body, and finally, a protective film on the surface of the film adhesive tape is torn, and the film adhesive tape is adhered to the other end of the wear-resistant piece, so that the looping strip is fixed.
As a further improvement of the application, the ground contact strip comprises two outer protrusions fixedly connected to the spiral bottom plate towards the outer middle part of the cable body, the two outer protrusions are of high wear-resistant structures, and the difference between the outer diameter of the outer protrusions and the outer diameter of the cable body is not less than 5mm.
As a further improvement of the application, a plurality of through grooves distributed along the trend of the cable body are also cut on the cable body, and the inner walls of the through grooves are coated with magnetic layers.
As a further improvement of the application, an adhesion-promoting layer is fixedly connected between the two outer protrusions, the adhesion-promoting layer penetrates through the spiral bottom sheet fixedly and protrudes out of the inner surface of the spiral bottom sheet, and the inside of the adhesion-promoting layer is filled with magnetic liquid in a saturated manner.
As a further improved supplement of the application, the magnetic liquid is prepared by uniformly mixing clear water, colored iron powder and fine sand according to the volume ratio of 2:1:1.
As a further improvement supplement of the application, the outward end face of the adhesion-promoting layer is made of flexible sealing wear-resistant materials, the end face of one side of the adhesion-promoting layer facing the cable body is of an elastic sealing structure, the inner wall of the elastic end face is fixedly connected with a plurality of uniformly distributed iron sheets, and the middle part of the elastic end face of the adhesion-promoting layer is also attached with a gecko-like layer.
In conclusion, through the setting that separates the ground cover, can be at cable body surface spiral winding, and then make its stable cladding at cable body surface, simultaneously owing to touch the setting of ground strip, make in dragging the in-process, with ground friction's part by the cable body change to touch on the ground strip, and then effectively guarantee the cable body and not direct with ground contact, compare in prior art, reduce the wearing and tearing that receive when dragging by a wide margin, effectively avoid the potential safety hazard when the circular telegram is used, in addition, the cooperation helps adhesion layer and the setting of inside magnetic liquid, can realize carrying out the multiple spot to the winding area of spiral and consolidate once more, effectively guarantee the stability of its connection, be difficult for shifting because of dragging, make the protection effect to the cable body better.
Drawings
FIG. 1 is a partial front view of a first embodiment of the present application;
FIG. 2 is a front view of a floor covering according to a first embodiment of the application;
FIG. 3 is a radial cross-sectional view of a first embodiment of the present application;
FIG. 4 is a top view of a portion of a coiled strip according to a first embodiment of the present application;
FIG. 5 is a front view of a cable body according to a second embodiment of the present application;
FIG. 6 is a cross-sectional view of a cable body according to a second embodiment of the present application;
FIG. 7 is a cross-sectional view of a coiled strip portion according to a second embodiment of the present application;
FIG. 8 is a perspective view of a ground strap according to a second embodiment of the present application;
fig. 9 is a cross-sectional view of a portion of a coil tape according to a second embodiment of the present application when attached to a surface of a cable body.
The reference numerals in the figures illustrate:
1 cable body, 101 ring groove, 102 through groove, 2 winding belt, 21 spiral negative sheet, 22 outer convex strip, 23 adhesion-promoting layer, 4 gecko-like layer, 31 wear-resisting sheet, 32 film adhesive tape, 33 pairs of groove strip.
Description of the embodiments
Two embodiments of the present application will be described in detail with reference to the accompanying drawings.
First embodiment:
Fig. 1-2 show a polypropylene insulation medium voltage power cable, which comprises a cable body 1, wherein a plurality of annular grooves 101 which are uniformly distributed are cut on the outer ring of the cable body 1, a ground isolating sleeve is twisted and wound outside the cable body 1, the ground isolating sleeve comprises two coiling strips and a coiling strip 2 which is fixedly connected between the two coiling strips, the coiling strips are correspondingly matched with the annular grooves 101, when in use, one coiling strip is fixed at a proper annular groove 101, then the coiling strip 2 is wound outside the cable body 1, the interval between each circle of the coiling strip 2 is adjusted according to the requirement, and after the coiling, the other coiling strip is fixed at a proper annular groove 101, thus the installation of the ground isolating sleeve is completed. In addition, after the installation is finished, the ground separating sleeve is detachable, so that the circular use is convenient.
As shown in fig. 4, the winding belt 2 comprises a spiral negative film 21 in attached contact with the surface of the cable body 1 and a ground contact strip fixedly connected to the middle part of the end face of the spiral negative film 21, which faces the outer side of the cable body 1, wherein a gecko-like layer 4 is fixedly connected to one side surface of the spiral negative film 21, which faces the cable body 1, and when the gecko-like layer 4 contacts with an object, huge intermolecular force is generated, so that adhesion is realized, when the winding belt 2 is taken down, the winding belt is slowly torn down from one direction, the whole winding belt is difficult to take down directly, the gecko-like layer 4 can be stably attached to the surface of the cable body 1 when the winding belt 2 is wound on the surface of the cable body 1, and when the whole ground contact sleeve is taken down, the gecko-like layer 4 is just torn down in a local reverse winding mode, so that the winding belt 2 is not affected.
As shown in fig. 2, the winding belt 2 is originally in an elastic spiral structure, and the inner diameter of the spiral structure in the initial state of the winding belt 2 is smaller than the outer diameter of the cable body 1, so that the winding belt 2 is effectively ensured to be in a state of being spread when being wound on the surface of the cable body 1, and further the stability of the winding belt on the surface of the cable body 1 is effectively ensured, and the situation that the winding belt is not easy to shift due to too loose is not easy to occur.
The looping strip comprises a wear plate 31, a pair of groove strips 33 fixedly connected to the middle of the wear plate 31 and a film adhesive tape 32 fixedly connected to one end of the wear plate 31, wherein the pair of groove strips 33 are matched with the annular groove 101, when the looping strip is used, the pair of groove strips 33 are aligned with the annular groove 101, then the wear plate 31 is controlled to loop along the annular groove 101, the looping strip is sleeved outside the cable body 1, finally, a protective film on the surface of the film adhesive tape 32 is torn, the film adhesive tape 32 is adhered to the other end of the wear plate 31, and then the looping strip is fixed.
The ground contact strip comprises two outer convex strips 22 which are fixedly connected with the spiral bottom piece 21 towards the outer middle part of the cable body 1, and the two outer convex strips 22 are of high wear-resistant structures, so that the ground contact strip is not easy to damage when being directly rubbed with the ground, the difference between the outer diameter of the outer convex strips 22 and the outer diameter of the cable body 1 is not less than 5mm, a certain interval is effectively ensured between the outer diameter of the outer convex strips 22 and the outer diameter of the cable body 1, and the situation that the cable body 1 is still in direct contact with the ground due to too small interval is not easy to occur.
In the polypropylene insulation medium voltage power cable, as shown in fig. 2-3, through the arrangement of the ground isolation sleeve, the surface of the cable body 1 can be spirally wound, so that the cable body 1 is stably coated on the surface of the cable body, meanwhile, due to the arrangement of the ground contact strip, the part rubbed with the ground is converted onto the ground contact strip by the cable body in the dragging process, so that the cable body 1 is effectively ensured not to be in direct contact with the ground, and compared with the prior art, the abrasion suffered in dragging is greatly reduced, and the potential safety hazard in the powering on and using process is effectively avoided.
Second embodiment:
The present embodiment is the same as the first embodiment except that the following is added to the first embodiment.
Referring to fig. 5-6, a plurality of through grooves 102 are further cut on the cable body 1 and distributed along the trend of the cable body 1, magnetic layers are coated on the inner walls of the through grooves 102, as shown in fig. 8, an adhesion-promoting layer 23 is fixedly connected between two outer protrusions 22, the adhesion-promoting layer 23 penetrates through the spiral bottom sheet 21 fixedly and protrudes out of the inner surface of the spiral bottom sheet 21, the inside of the adhesion-promoting layer 23 is filled with magnetic liquid in a saturated manner, as shown in fig. 9, when the winding belt 2 is wound on the outer surface of the cable body 1, the winding belt 2 and the through grooves 102 are intersected, the magnetic liquid at the intersection part of the winding belt 2 and the magnetic liquid is affected by the adsorption of the magnetic layers, and is gathered towards the inside of the through grooves 102, so that the adhesion-promoting layer 23 is deformed and embedded into the through grooves 102, and is connected with the inside of the through grooves 102 in a fixed point manner, thereby effectively limiting the stability of the winding belt 2 on the surface of the cable body 1, so that the winding belt 2 is not easy to shift when being dragged, and the protection of the cable body 1 is more stable.
The magnetic liquid is formed by uniformly mixing clear water, colored iron powder and fine sand according to the volume ratio of 2:1:1, and the colored iron powder part in the magnetic liquid can gather towards the position corresponding to the intersection of the through groove 102 due to the magnetic attraction, so that the color of the adhesion assisting layer 23 at the position is obviously deepened, an installer can be reminded, the adhesion assisting layer 23 at the position is well embedded into the through groove 102, and the fixing of the point to the winding belt 2 is good.
The end face of the adhesion assisting layer 23 facing outwards is made of flexible sealing wear-resistant materials, the end face of the adhesion assisting layer 23 facing to one side of the cable body 1 is of an elastic sealing structure, a plurality of evenly distributed iron sheets are fixedly connected to the inner wall of the elastic end face, when the adhesion assisting layer 23 is subjected to magnetic attraction of the magnetic layers, the adhesion assisting layer 23 is driven by colored iron powder and the iron sheets to deform in the through groove 102 conveniently and is attracted with the magnetic layers, the effect of multipoint fixing of the winding belt 2 is achieved, the stability of the adhesion assisting layer is greatly improved, the middle part of the elastic end face of the adhesion assisting layer 23 is also attached with the gecko-like layer 4, meanwhile, after the adhesion assisting layer 23 is attached to the inner wall of the through groove 102, the gecko-like layer 4 can be adhered to the inner wall of the through groove 102, the effect of multipoint positioning is assisted, and the stability of the winding belt 2 is further improved.
It is further noted that the highest point of the outer end of the adhesion promoting layer 23 is lower than the highest point of the outer protrusion 22 as shown in fig. 7, so that the outer protrusion 22 always directly contacts the ground when the cable is pulled.
In conclusion, through the setting that separates the ground cover, can be at cable body 1 surface spiral winding, and then make its stable cladding at cable body 1 surface, simultaneously owing to the setting of touchdown strip, make in the in-process of dragging, with ground friction's part by the cable body change to the touchdown strip on, and then effectively guarantee cable body 1 not direct with ground contact, compare in prior art, reduce the wearing and tearing that receives when dragging by a wide margin, effectively avoid the potential safety hazard when the circular telegram is used, in addition, cooperate adhesion promoting layer 23 and the setting of inside magnetic liquid, can realize carrying out the multiple spot to spiral winding area 2 and consolidate again, effectively guarantee the stability of its connection, be difficult for shifting because of dragging, make the protection effect to cable body 1 better.
The present application is not limited to the above-described embodiments, which are adopted in connection with the actual demands, and various changes made by the person skilled in the art without departing from the spirit of the present application are still within the scope of the present application.
Claims (4)
1. The polypropylene insulation medium voltage power cable is characterized in that: the cable comprises a cable body (1), a plurality of annular grooves (101) which are uniformly distributed are cut on the outer ring of the cable body (1), a ground isolation sleeve is twisted and wound outside the cable body (1), the ground isolation sleeve comprises two coiling strips and a coiling belt (2) which is fixedly connected between the two coiling strips, the coiling strips are correspondingly matched with the annular grooves (101), the coiling belt (2) comprises a spiral bottom sheet (21) which is in surface attaching contact with the cable body (1) and a ground contact strip which is fixedly connected with the middle part of the end face of the spiral bottom sheet (21) towards the outer side of the cable body (1), and a gecko imitation layer (4) is fixedly connected with one side surface of the spiral bottom sheet (21) towards the cable body (1);
The looping strip comprises a wear-resistant piece (31), a pair of groove strips (33) fixedly connected to the middle of the wear-resistant piece (31) and a film adhesive tape (32) fixedly connected to one end of the wear-resistant piece (31), wherein the pair of groove strips (33) are matched with the annular groove (101), when the looping strip is used, the pair of groove strips (33) are aligned with the annular groove (101) and then the wear-resistant piece (31) is controlled to loop along the annular groove (101), the looping strip is sleeved outside the cable body (1), finally, a protective film on the surface of the film adhesive tape (32) is torn, and the film adhesive tape (32) is adhered to the other end of the wear-resistant piece (31) to fix the looping strip;
the cable body (1) is further provided with a plurality of through grooves (102) distributed along the trend of the cable body (1), the inner wall of each through groove (102) is coated with a magnetic layer, each ground contact strip comprises two outer protrusions (22) which are fixedly connected with a spiral bottom sheet (21) towards the outer middle part of the cable body (1), an adhesion assisting layer (23) is fixedly connected between the two outer protrusions (22), the adhesion assisting layer (23) fixedly penetrates through the spiral bottom sheet (21) and protrudes out of the inner surface of the spiral bottom sheet (21), magnetic liquid is filled in the adhesion assisting layer (23) in a saturated mode, and the magnetic liquid is formed by uniformly mixing clear water, colored iron powder and fine sand according to the volume ratio of 2:1:1.
2. The polypropylene insulated medium voltage power cable according to claim 1, wherein: the winding belt (2) is in an elastic spiral structure, and the inner diameter of the spiral structure of the winding belt (2) in the initial state is smaller than the outer diameter of the cable body (1).
3. The polypropylene insulated medium voltage power cable according to claim 1, wherein: the two outer protrusions (22) are of high wear-resistant structures, and the difference between the outer diameter of each outer protrusion (22) and the outer diameter of the cable body (1) is not smaller than 5mm.
4. The polypropylene insulated medium voltage power cable according to claim 1, wherein: the end face of the adhesion assisting layer (23) facing outwards is made of flexible sealing wear-resistant materials, the end face of one side of the adhesion assisting layer (23) facing the cable body (1) is of an elastic sealing structure, a plurality of uniformly distributed iron sheets are fixedly connected to the inner wall of the elastic end face, and a gecko-like layer (4) is attached to the middle of the elastic end face of the adhesion assisting layer (23) in the same way.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310948483.7A CN117095859B (en) | 2023-07-31 | 2023-07-31 | Polypropylene insulation medium voltage power cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310948483.7A CN117095859B (en) | 2023-07-31 | 2023-07-31 | Polypropylene insulation medium voltage power cable |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN117095859A CN117095859A (en) | 2023-11-21 |
| CN117095859B true CN117095859B (en) | 2024-04-16 |
Family
ID=88776154
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310948483.7A Active CN117095859B (en) | 2023-07-31 | 2023-07-31 | Polypropylene insulation medium voltage power cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117095859B (en) |
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| CN103151106A (en) * | 2013-01-09 | 2013-06-12 | 广东中宝联合电缆有限公司 | Movable cable of resistance to drag and scraping prevention and extrusion forming mould device thereof |
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| CN207910192U (en) * | 2018-03-01 | 2018-09-25 | 湘元宇控股有限公司 | A kind of magnetic-type data line |
| CN110501790A (en) * | 2018-05-17 | 2019-11-26 | 武汉通西域光电科技有限公司 | A kind of magnetism optical fiber cable |
| CN209708672U (en) * | 2019-06-25 | 2019-11-29 | 福建省江南顺达线缆有限公司 | A kind of drag cable with hard shell |
| KR20200005390A (en) * | 2018-07-07 | 2020-01-15 | 고민범 | the charger applied Van der Waals force |
| CN212136051U (en) * | 2020-06-05 | 2020-12-11 | 安徽百商百德电缆有限公司 | Full-shielding power cable with protection structure |
| CN213424687U (en) * | 2020-10-27 | 2021-06-11 | 溧阳华溯新材料有限公司 | Environment-friendly efficient flame-retardant cable flame-retardant belt |
| CN115424775A (en) * | 2022-08-31 | 2022-12-02 | 杨达 | Stress imaging type anti-drag cable |
-
2023
- 2023-07-31 CN CN202310948483.7A patent/CN117095859B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103151106A (en) * | 2013-01-09 | 2013-06-12 | 广东中宝联合电缆有限公司 | Movable cable of resistance to drag and scraping prevention and extrusion forming mould device thereof |
| JP2017175804A (en) * | 2016-03-24 | 2017-09-28 | 矢崎総業株式会社 | Holding tool for tubular elastic member, grommet with holding tool and wire harness manufacturing method |
| CN207910192U (en) * | 2018-03-01 | 2018-09-25 | 湘元宇控股有限公司 | A kind of magnetic-type data line |
| CN110501790A (en) * | 2018-05-17 | 2019-11-26 | 武汉通西域光电科技有限公司 | A kind of magnetism optical fiber cable |
| KR20200005390A (en) * | 2018-07-07 | 2020-01-15 | 고민범 | the charger applied Van der Waals force |
| CN209708672U (en) * | 2019-06-25 | 2019-11-29 | 福建省江南顺达线缆有限公司 | A kind of drag cable with hard shell |
| CN212136051U (en) * | 2020-06-05 | 2020-12-11 | 安徽百商百德电缆有限公司 | Full-shielding power cable with protection structure |
| CN213424687U (en) * | 2020-10-27 | 2021-06-11 | 溧阳华溯新材料有限公司 | Environment-friendly efficient flame-retardant cable flame-retardant belt |
| CN115424775A (en) * | 2022-08-31 | 2022-12-02 | 杨达 | Stress imaging type anti-drag cable |
Also Published As
| Publication number | Publication date |
|---|---|
| CN117095859A (en) | 2023-11-21 |
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