CN117153465A - Bending-resistant communication cable with extension sheath - Google Patents
Bending-resistant communication cable with extension sheath Download PDFInfo
- Publication number
- CN117153465A CN117153465A CN202311404969.0A CN202311404969A CN117153465A CN 117153465 A CN117153465 A CN 117153465A CN 202311404969 A CN202311404969 A CN 202311404969A CN 117153465 A CN117153465 A CN 117153465A
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- Prior art keywords
- ring
- cable
- bending
- extension
- sensing
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Links
- 238000004891 communication Methods 0.000 title claims abstract description 18
- 238000005452 bending Methods 0.000 title abstract description 48
- 230000002829 reductive effect Effects 0.000 claims abstract description 4
- 230000000670 limiting effect Effects 0.000 claims description 23
- 239000000919 ceramic Substances 0.000 claims description 21
- 238000003825 pressing Methods 0.000 claims description 20
- 241001079814 Symphyotrichum pilosum Species 0.000 claims description 19
- 235000004224 Typha angustifolia Nutrition 0.000 claims description 19
- 239000006185 dispersion Substances 0.000 claims description 19
- 239000011324 bead Substances 0.000 claims description 11
- 238000005520 cutting process Methods 0.000 claims description 4
- 239000000463 material Substances 0.000 claims description 4
- 230000001154 acute effect Effects 0.000 claims description 3
- 239000013013 elastic material Substances 0.000 claims description 3
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 6
- 230000000694 effects Effects 0.000 description 8
- 238000001125 extrusion Methods 0.000 description 4
- 238000007493 shaping process Methods 0.000 description 4
- 238000009434 installation Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000036961 partial effect Effects 0.000 description 2
- 230000008447 perception Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000002401 inhibitory effect Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 238000007789 sealing Methods 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
-
- 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
-
- 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
- H01B7/32—Insulated conductors or cables characterised by their form with arrangements for indicating defects, e.g. breaks or leaks
Abstract
The application relates to an anti-bending communication cable with an extension sheath, which is applied to the field of communication cables, wherein the angle of local bending is limited, when the cable is subjected to unexpected pulling bending, a plurality of extension rings can outwards disperse and extend the original local bending into a longer section of cable bending compared with the prior art, so that the situation of local excessive bending is effectively avoided, the cable is protected from being damaged, in addition, the extension rings are replaceable, the production difficulty of a cable body is not easily affected, the cost investment is reduced, in addition, the bending part can emit light due to bending force when the cable is installed to be unexpectedly excessively bent, and the cable can play a role in reminding and early warning for an installer.
Description
Technical Field
The application relates to an anti-bending communication cable, in particular to an anti-bending communication cable with an extension sheath, which is applied to the field of communication cables.
Background
The cable is mainly composed of the following 4 parts. (1) A conductive wire core, (2) an insulating layer, (3) a sealing sheath and (4) a protective covering wound. The cable is generally coiled in a rolling way in the transportation process, so that the cable has a certain bending-resistant force, but the cable is often damaged due to the fact that the bending amplitude of the cable is far greater than the bending amplitude of the cable in the installation or use process.
Chinese patent CN113096870B discloses a magnetic control air pushing type bending-resistant cable, and aims at the problems, and the patent mainly aims at arranging a plurality of related structures on the cable skin of the cable to achieve the bending-resistant effect.
However, this way of solving the problem of unexpected bending of the cable leads to an increase in difficulty in forming the cable cover during the manufacturing process, a higher cost input, and the main structure of bending resistance cannot be reused and is difficult to replace after damage.
Disclosure of Invention
Aiming at the prior art, the application aims to solve the technical problem that the cost input for protecting the cable from being excessively bent is large.
In order to solve the problems, the application provides an anti-bending communication cable with an extension sheath, which comprises a cable body and the extension sheath sleeved outside the cable body, wherein the extension sheath comprises a plurality of extension rings which are uniformly distributed, a group of limiting ropes are fixedly connected between every two adjacent extension rings, each extension ring comprises a shaping ring far away from one side of the cable body and an inner hemispherical ring facing one side of the cable body, each shaping ring comprises a flat ring fixedly connected with the inner hemispherical ring and an outer dispersion ring fixedly connected to one end of the flat ring far away from the cable body, a force sensing nail is arranged in the inner hemispherical ring, an opening slot opposite to the force sensing nail is cut in the outer dispersion ring, a force display plate is arranged in the opening slot, the force sensing nail is opposite to the force display plate, the force sensing nails are not contacted with each other, a positioning plate is clamped at the opening part of the opening slot, and the positioning plate corresponds to and contacts with the force display plate.
In the above-mentioned anti cable of buckling with extend sheath, through the setting of a plurality of extension rings, make the angle that local was buckled limited, when receiving unexpected and dragging the buckling, compare in prior art, a plurality of extension rings can outwards disperse the bending of extending into longer one section cable with originally local buckling, and then effectively avoid local excessive condition of buckling to take place, and the protection cable is difficult for being damaged, and extension ring is removable in addition, and its difficult production degree that influences the cable body makes the cost input become low.
As a further improvement of the application, the limiting ropes are of inelastic structures, and two adjacent groups of limiting ropes are distributed in a staggered manner.
As a further improvement of the application, the cross section of the flat ring is rectangular, the left end and the right end of the outer dispersion ring are subjected to corner cutting treatment, and the acute included angle between the corner cutting and the vertical direction is not more than 20 degrees.
As a further improvement of the application, the outer dispersion ring and the average ring are made of hard materials, the outer dispersion ring is of a transparent structure, and the inner hemispherical ring is made of elastic materials.
As a further improvement of the application, the force sensing nail comprises a fixed ball fixedly embedded in the inner hemispherical ring and a pressing nail rod movably penetrating through the inner hemispherical ring and the flat ring and extending to the opening groove, wherein the fixed ball and the pressing nail rod are fixedly connected with each other.
As a further improvement of the application, the force display plate comprises two limiting semi-columns, a supporting block clamped between the two limiting semi-columns and a force sensing deep hole surrounded by the two limiting semi-columns, the end part of the pressing nail rod is opposite to the force sensing deep hole, and a sensing electrification component is arranged in the bottom of the force sensing deep hole and is in contact with the supporting block.
As a further improvement of the application, the limiting semi-column is of an elastic transparent structure, and the lamp beads are embedded in the limiting semi-column and are electrically connected with the sensing electrification component.
As a further improvement of the application, the sensing electrification component comprises a piezoelectric ceramic wedge block, a piezoelectric ceramic rod in contact with the supporting block and a conducting plate positioned between the piezoelectric ceramic wedge block and the piezoelectric ceramic rod, wherein the conducting plate is electrically connected with the lamp bead, the bottom of the force sensing deep hole is conical, the piezoelectric ceramic wedge block is embedded into the conical, and the inclination of the surface of the piezoelectric ceramic wedge block is consistent with the inclination of the conical.
As a further improvement of the application, the upper surface of the sensing electrification component is higher than the middle point of the outer dispersion ring, the lower end of the pressing nail rod is also of a conical surface structure which is reduced downwards, and the size of the pressing nail rod body is consistent with the maximum diameter of the force sensing deep hole.
In conclusion, through the setting of a plurality of extension rings, make the angle that local was buckled limited, when receiving unexpected to pull to buckle, compare in prior art, a plurality of extension rings can outwards scatter the bending of extending into longer one section cable with originally local buckling, and then effectively avoid local excessive condition of buckling to take place, the protection cable is difficult for being damaged, extension ring is removable in addition, its difficult production degree that influences the cable body, make the cost input become low, in addition, the cooperation feels the effect of power nail and developing the power board, when unexpected excessive bending takes place for cable installation, the department of buckling can send out light because of the bending force, can play warning effect to the installer.
Drawings
Fig. 1 is a perspective view of a first embodiment of the present application;
FIG. 2 is a front cross-sectional view of a first embodiment of the present application;
FIG. 3 is a schematic view in partial cross-section of an extension ring according to a first embodiment of the present application;
FIG. 4 is a schematic view of two extension rings of a first embodiment of the present application in juxtaposition;
FIG. 5 is a schematic illustration showing the variation of the first embodiment of the present application at two extension rings after bending the cable;
FIG. 6 is a schematic diagram of a bending portion of a cable according to a first embodiment of the present application;
FIG. 7 is a diagram of the first embodiment of the present application without the use of an extension ring and with an extension ring;
FIG. 8 is a schematic view in partial cross-section of an extension ring in accordance with a second embodiment of the application;
FIG. 9 is an enlarged view of FIG. 8 at A;
FIG. 10 is a schematic view of a section of an extension ring portion of a cable subjected to slight bending in accordance with a second embodiment of the present application;
fig. 11 is a schematic view of a section of an extension ring when the cable is excessively bent in the second embodiment of the present application.
The reference numerals in the figures illustrate:
the cable comprises a cable body 1, an extension ring 2, an outer dispersing ring 211, a flat ring 212, an inner hemispherical ring 22, a limit rope 3, a ball 41, a pin 42, a 5-perception electrification component, a 51-piezoceramic wedge block, a 52-piezoceramic rod, a 53-conductive sheet, a 6-limit semi-column, a 7-support block and an 8-positioning plate.
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 an anti-bending communication cable with an extension sheath, which comprises a cable body 1 and an extension sheath sleeved outside the cable body 1, wherein the extension sheath comprises a plurality of extension rings 2 which are uniformly distributed, a group of limiting ropes 3 are fixedly connected between every two adjacent extension rings 2, the limiting ropes 3 are of inelastic structures, and the two adjacent groups of limiting ropes 3 are distributed in a staggered manner, so that the action points of the plurality of limiting ropes 3 on the two adjacent extension rings 2 are not easy to coincide, and when the cable body is subjected to bending and pulling force, the pulling force of the limiting ropes 3 to the extension rings 2 is more average and stable, and the effect of inhibiting the cable body 1 from bending is better.
As shown in fig. 3-4, in the drawing, a represents the chamfer, the extension ring 2 includes the shaping ring far away from one side of the cable body 1 and the inner hemisphere ring 22 facing one side of the cable body 1, the shaping ring includes the flat ring 212 fixedly connected with the inner hemisphere ring 22 and the outer dispersion ring 211 fixedly connected with one end of the flat ring 212 far away from the cable body 1, the section of the flat ring 212 is rectangular, when two adjacent extension rings 2 are contacted, the contact surface is positioned on the flat ring 212, and the contact surface is flat, so that a plurality of extension rings 2 are distributed more uniformly, the left and right ends of the outer dispersion ring 211 are subjected to chamfer treatment, and the acute angle included between the chamfer and the vertical direction is not more than 20 degrees, as shown in fig. 5-6, when the cable is subjected to bending force, the maximum amplitude of local bending of the cable is two chamfer degrees, when the cable is continuously subjected to the pulling force, the adjacent extension rings 2 continue bending, so that the bending force can be outwards extended and spread, the local bending of the cable can be converted into a longer section of combined bending of the cable in the prior art, such as shown in fig. 7, the cable body 1 is not affected by the bending of the cable body, and the cable is not significantly bent at the same angle, and the cable body is not bent at the local bending position of the cable body 1, and the cable body is not stressed by the cable body is not bent, and the cable body is not significantly, and the cable body is not bent, and the cable body is not 1 is not stressed and the cable is not bent, and the cable is not 1, and the cable is not bent.
The outer dispersion ring 211 and the flat ring 212 are made of hard materials, when bending, the chamfer positions of the two extension rings 2 along the bending direction are mutually abutted, when the two extension rings are abutted by the hard materials, deformation is not easy to occur, the cable is effectively protected from being further bent, the inner hemispherical ring 22 is made of elastic materials, and when the cable is directly contacted with the inner hemispherical ring under bending force, the cable body 1 is not easy to be damaged due to local abutting force.
In the above-mentioned anti cable of buckling with extend sheath, through the setting of a plurality of extension rings 2, make the angle that local was buckled limited, when receiving unexpected and dragging the buckling, compare in prior art, a plurality of extension rings 2 can outwards disperse the bending of extending into longer one section cable with local buckling originally, and then effectively avoid the condition of local excessive bending to take place, and the protection cable is difficult for being damaged, and extension ring 2 is removable in addition, and it is difficult for influencing the production degree of difficulty of cable body 1, makes the cost input reduce.
Second embodiment:
8-9 show that force sensing nails are arranged in the inner hemispherical ring 22, an open slot opposite to the force sensing nails is cut in the outer dispersion ring 211, a force display plate is arranged in the open slot, the force sensing nails are opposite to the force display plate and are not contacted with each other, a positioning plate 8 is clamped at the opening part of the open slot, and the positioning plate 8 corresponds to and contacts with the force display plate; the force sensing nail comprises a fixed ball 41 fixedly embedded in the inner hemispherical ring 22 and a pressing nail rod 42 movably penetrating through the inner hemispherical ring 22 and the flat ring 212 and extending to the open slot, wherein the fixed ball 41 and the pressing nail rod 42 are fixedly connected with each other.
The power display plate comprises two limiting semi-columns 6, a supporting block 7 clamped between the two limiting semi-columns 6 and a force sensing deep hole surrounded by the two limiting semi-columns 6, the end part of a pressing nail rod 42 is opposite to the force sensing deep hole, a sensing electrification component 5 is placed in the bottom of the force sensing deep hole, the sensing electrification component 5 is in contact with the supporting block 7, when the cable body 1 is bent, after being deformed by an inner hemispherical ring 22 extruded by the cable body 1, the force sensing nail moves along with the deformation, so that the force sensing nail can enter the force sensing deep hole, extrusion force is generated on the sensing electrification component 5, current is generated on the sensing electrification component 5, and then the lamp beads are luminous.
The spacing semicylinder 6 is elasticity transparent structure, and outer dispersion ring 211 is transparent structure, the lamp pearl has been inlayed in spacing semicylinder 6, the lamp pearl is connected with perception electrification subassembly 5 electricity, when cable body 1 continuously receives excessive bending force, as in fig. 10-11, interior hemisphere ring 22 can be under cable body 1 extrusion effect deformation, thereby push dynamic force nail make it be close to the power plate and produce the extrusion force to it, make the lamp pearl electrify luminous under perception electrification subassembly 5 effect, the light source that sends can pass spacing semicylinder 6 and outer dispersion ring 211, thereby the staff of construction buckle early warning, make cable body 1 be difficult for handling the state of excessive buckling for a long time, effectively protect cable body 1 be difficult for being damaged.
The sensing electrification component 5 comprises a piezoelectric ceramic wedge block 51, a piezoelectric ceramic rod 52 in contact with the supporting block 7 and a conducting plate 53 positioned between the piezoelectric ceramic wedge block 51 and the piezoelectric ceramic rod 52, wherein the conducting plate 53 is electrically connected with a lamp bead, when the inner hemispherical ring 22 is subjected to extrusion deformation due to excessive bending of the cable body 1, after the pressing nail rod 42 enters a force sensing deep hole when the deformation quantity is overlarge, the piezoelectric ceramic wedge block 51 is extruded firstly, due to the interference of the supporting block 7, the piezoelectric ceramic wedge block 51 and the piezoelectric ceramic rod 52 are mutually extruded to generate current, the current is transmitted to the lamp bead through the conducting plate 53, so that the lamp bead emits light to play a role of warning, the bottom of the force sensing deep hole is conical, the piezoelectric ceramic wedge block 51 is embedded into the conical, and the inclination of the surface of the piezoelectric ceramic wedge block 51 is consistent with the conical inclination.
The upper surface of the sensing electrification component 5 is higher than the middle point of the outer dispersion ring 211, so that the distance between the sensing electrification component 5 and the bottom of the force sensing nail is not easy to be too far, the force sensing nail can be extruded with the corresponding sensing electrification component 5 effectively when the two extension rings 2 are mutually eliminated, when the lamp beads are instantaneously lightened and extinguished after being instantaneously bent and restored, the lower end of the pressing nail rod 42 is of a conical surface structure which is also reduced downwards, the size of the end part of the pressing nail rod 42 is smaller, the pressing nail rod 42 is convenient to enter a force sensing deep hole, the size of the rod body of the pressing nail rod 42 is consistent with the maximum diameter of the force sensing deep hole, the pressing nail rod 42 is relatively stable after entering the force sensing deep hole and is not easy to generate offset deformation in the radial direction, and when the bending amplitude is too large, the pressing nail rod can be stably extruded on the sensing electrification component 5, and the lamp beads can be effectively lightened.
When the lamp beads at the bending positions are powered off and extinguished, the corresponding supporting blocks 7 or the corresponding positioning plates 8 can leave marks with color change due to the stress, so that the subsequent staff can conveniently confirm specific bending points.
In conclusion, through the setting of a plurality of extension rings 2, make the angle that local was buckled limited, when receiving unexpected and pulling the buckling, compare in prior art, a plurality of extension rings 2 can outwards scatter the buckling that extends into longer one section cable with originally local buckling, and then effectively avoid local excessive condition of buckling to take place, the protection cable is difficult for being damaged, extension ring 2 is removable in addition, its production degree of difficulty that is difficult for influencing cable body 1, make the cost input become low, in addition, the cooperation feels the effect of power nail and showing the power board, when cable installation takes place unexpected excessive buckling, the department of buckling can send out light because of the power of buckling, can play warning effect to the installer.
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 (9)
1. A kink resistant communications cable with an extended sheath, characterized by: including cable body (1) and cover establish the extension sheath outside cable body (1), extension sheath includes a plurality of evenly distributed extension ring (2), every adjacent two equal fixedly connected with spacing rope (3) between extension ring (2), extension ring (2) are including keeping away from the design ring of cable body (1) one side and towards interior hemisphere ring (22) of cable body (1) one side, design ring include with interior hemisphere ring (22) fixed connection's flat ring (212) and fixed connection keep away from outer dispersion ring (211) of cable body (1) one end at flat ring (212), be equipped with the sense nail in interior hemisphere ring (22), open in outer dispersion ring (211) have the open slot just to the sense nail, the apparent power board has been placed in the open slot, sense nail just is just to the apparent power board, and the two is not contacted each other, open slot oral area joint has locating plate (8), locating plate (8) correspond and contact with apparent power board.
2. A kink resistant communications cable with an extended sheath according to claim 1, wherein: the limiting ropes (3) are of inelastic structures, and two adjacent groups of limiting ropes (3) are distributed in a staggered mode.
3. A kink resistant communications cable with an extended sheath according to claim 1, wherein: the cross section of the flat ring (212) is rectangular, the left end and the right end of the outer dispersion ring (211) are subjected to corner cutting treatment, and the acute included angle between the corner cutting and the vertical direction is not more than 20 degrees.
4. A kink resistant communications cable with an extended sheath according to claim 1, wherein: the outer dispersion ring (211) and the flat ring (212) are both made of hard materials, the outer dispersion ring (211) is of a transparent structure, and the inner hemispherical ring (22) is made of elastic materials.
5. A kink resistant communications cable with an extended sheath according to claim 1, wherein: the force sensing nail comprises a fixed ball (41) fixedly embedded in the inner hemispherical ring (22) and a pressing nail rod (42) movably penetrating through the inner hemispherical ring (22) and the flat ring (212) and extending to the opening groove, and the fixed ball (41) and the pressing nail rod (42) are fixedly connected with each other.
6. A kink resistant communications cable with an extended sheath according to claim 5, wherein: the force display plate comprises two limiting semi-columns (6), supporting blocks (7) clamped between the two limiting semi-columns (6) and force sensing deep holes surrounded by the two limiting semi-columns (6), the end parts of the pressing nail rods (42) are opposite to the force sensing deep holes, sensing electrification components (5) are placed in the bottoms of the force sensing deep holes, and the sensing electrification components (5) are in contact with the supporting blocks (7).
7. A kink resistant communications cable with an extended sheath according to claim 6, wherein: the limiting semi-column (6) is of an elastic transparent structure, and the limiting semi-column (6) is embedded with lamp beads which are electrically connected with the sensing electrification component (5).
8. A kink resistant communications cable with an extended sheath according to claim 7, wherein: the sensing electrification component (5) comprises a piezoelectric ceramic wedge block (51), a piezoelectric ceramic rod (52) in contact with the supporting block (7) and a conducting plate (53) arranged between the piezoelectric ceramic wedge block (51) and the piezoelectric ceramic rod (52), the conducting plate (53) is electrically connected with the lamp bead, the bottom of the force sensing deep hole is conical, the piezoelectric ceramic wedge block (51) is embedded into the conical, and the inclination of the surface of the piezoelectric ceramic wedge block (51) is consistent with the inclination of the conical.
9. A kink resistant communications cable with an extended sheath according to claim 8, wherein: the upper surface of the sensing electrification component (5) is higher than the middle point of the outer dispersion ring (211), the lower end of the pressing nail rod (42) is of a conical surface structure which is reduced downwards, and the size of the rod body of the pressing nail rod (42) is consistent with the maximum diameter of the force sensing deep hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311404969.0A CN117153465B (en) | 2023-10-27 | 2023-10-27 | Bending-resistant communication cable with extension sheath |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311404969.0A CN117153465B (en) | 2023-10-27 | 2023-10-27 | Bending-resistant communication cable with extension sheath |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN117153465A true CN117153465A (en) | 2023-12-01 |
| CN117153465B CN117153465B (en) | 2023-12-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311404969.0A Active CN117153465B (en) | 2023-10-27 | 2023-10-27 | Bending-resistant communication cable with extension sheath |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117153465B (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100285968A1 (en) * | 2009-05-05 | 2010-11-11 | Electric Power Research Institute, Inc. | Thermal contraction compensation for superconducting and cryo-resistive cables |
| CN113257467A (en) * | 2021-05-18 | 2021-08-13 | 徽煌电气有限公司 | Color-rendering early-warning type cable sheath capable of preventing excessive bending |
-
2023
- 2023-10-27 CN CN202311404969.0A patent/CN117153465B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100285968A1 (en) * | 2009-05-05 | 2010-11-11 | Electric Power Research Institute, Inc. | Thermal contraction compensation for superconducting and cryo-resistive cables |
| CN113257467A (en) * | 2021-05-18 | 2021-08-13 | 徽煌电气有限公司 | Color-rendering early-warning type cable sheath capable of preventing excessive bending |
Also Published As
| Publication number | Publication date |
|---|---|
| CN117153465B (en) | 2023-12-29 |
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