CN108429019B - Five-layer crimping device with double apertures - Google Patents
Five-layer crimping device with double apertures Download PDFInfo
- Publication number
- CN108429019B CN108429019B CN201810398027.9A CN201810398027A CN108429019B CN 108429019 B CN108429019 B CN 108429019B CN 201810398027 A CN201810398027 A CN 201810398027A CN 108429019 B CN108429019 B CN 108429019B
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- Prior art keywords
- pipe
- graphite
- crimping
- tube
- jacking
- 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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- 238000002788 crimping Methods 0.000 title claims abstract description 70
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 81
- 229910002804 graphite Inorganic materials 0.000 claims abstract description 80
- 239000010439 graphite Substances 0.000 claims abstract description 80
- 239000002184 metal Substances 0.000 claims abstract description 44
- 229910052751 metal Inorganic materials 0.000 claims abstract description 44
- 229910001335 Galvanized steel Inorganic materials 0.000 claims abstract description 24
- 239000008397 galvanized steel Substances 0.000 claims abstract description 24
- 238000003475 lamination Methods 0.000 claims abstract description 6
- 229910000831 Steel Inorganic materials 0.000 claims description 13
- 239000010959 steel Substances 0.000 claims description 13
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 12
- 239000004020 conductor Substances 0.000 claims description 10
- 238000003825 pressing Methods 0.000 claims description 10
- 239000004744 fabric Substances 0.000 claims description 8
- 238000000034 method Methods 0.000 claims description 8
- 238000005452 bending Methods 0.000 claims description 6
- 229910052742 iron Inorganic materials 0.000 claims description 6
- 210000001503 joint Anatomy 0.000 claims description 5
- 238000010276 construction Methods 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 230000009977 dual effect Effects 0.000 claims 2
- 238000004519 manufacturing process Methods 0.000 claims 1
- 238000007789 sealing Methods 0.000 abstract description 2
- 230000006978 adaptation Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 239000002131 composite material Substances 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 2
- 239000007769 metal material Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 229910052799 carbon 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
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 239000007770 graphite material Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
- H01R4/10—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation effected solely by twisting, wrapping, bending, crimping, or other permanent deformation
- H01R4/18—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation effected solely by twisting, wrapping, bending, crimping, or other permanent deformation by crimping
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
- H01R4/58—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation characterised by the form or material of the contacting members
- H01R4/66—Connections with the terrestrial mass, e.g. earth plate, earth pin
Abstract
The embodiment of the invention discloses a double-aperture five-layer crimping device, which comprises a graphite cable grounding down-lead, a galvanized steel wiring board and an intermediate connector, wherein: the graphite cable grounding down-lead and galvanized steel wiring board comprises a flat section and a tail pipe, wherein the tail pipe further comprises an inner pipe and an outer pipe which are sequentially arranged; an intermediate crimping member; the jacking pressure connection pipe is a metal cylinder; the outer layer is laminated to take over, is a metal cylinder; the fourth pressure connection pipe is a metal cylinder; wherein the intermediate crimp accommodates and compresses the plurality of graphite wires extending out of the end portion, and the plurality of graphite wires extend out of the end portion of the intermediate crimp; the jacking crimping pipe accommodates one end of the graphite cable grounding down-lead extending out of the metal wire and is compressed, a plurality of metal wires extending out of the end are reversely folded and arranged on the surface of the jacking crimping pipe, and an outer lamination crimping pipe is sleeved on the outermost side of the jacking crimping pipe and is compressed; the inner tube accommodates the middle crimping pipe and is compacted, graphite wires extending out of the middle crimping piece are reversely folded and arranged on the outer surface of the inner tube, and a fourth crimping pipe is sleeved on the outer surface of the inner tube and is compacted; the outer tube accommodates the outer laminate adapter and compresses. The invention has strong anti-damage performance, positioning performance and sealing performance.
Description
Technical Field
The invention relates to the field of power technology application, in particular to a structure of a graphite grounding cable intermediate connecting joint.
Background
At present, in order to solve the problems of corrosion, theft and the like, the flexible graphite composite grounding strap is popularized and applied, and a small amount of metal wires are required to be doped in the flexible graphite composite grounding strap applied to occasions with larger short-circuit current so as to increase the short-time power frequency current tolerance of the grounding strap. The grounding strap is characterized in that a layer of steel armor is coated on the exposed lead part from the terminal end to the buried ground of the tower material to prevent graphite material from losing and the grounding strap from being damaged by external force. When the terminal connector is manufactured by adopting a double-layer galvanized steel flat tube compression mode, the double-layer compression joint space of the flat tube is not sealed, internal metal materials are corroded under the environmental effect, meanwhile, the pressure of the metal materials can change along with the temperature, poor contact between metals is caused, the connection resistance is increased, and the function of the whole grounding device is reduced.
Disclosure of Invention
The technical problem to be solved by the invention is to provide the double-aperture five-layer crimping device which can realize reliable connection of the graphite cable grounding down-lead and the galvanized steel of the iron tower and can ensure that the crimping device has strong anti-damage capability and better positioning performance and sealing performance.
In order to solve the technical problems, the invention provides a double-aperture five-layer crimping device which is characterized by comprising a graphite cable grounding down-lead, a galvanized steel wiring board and an intermediate connector, wherein:
the graphite cable grounding down-lead comprises steel armor and graphite woven cloth from outside to inside, wherein the graphite woven cloth is wrapped with a plurality of graphite wires and metal wires, and the graphite wires and the metal wires extend out of one end part of the graphite cable grounding down-lead and are separated;
the galvanized steel wiring board comprises a flat section and a tail pipe, wherein the tail pipe further comprises an inner pipe and an outer pipe which are sequentially arranged, and the pipe diameter of the outer pipe is larger than that of the inner pipe;
the middle crimping piece is a metal cylinder with a gap;
the jacking pressure connection pipe is a metal cylinder;
the outer layer is laminated to take over, is a metal cylinder;
a fourth press connection pipe which is a galvanized steel pipe with threads bored on the inner surface;
wherein the intermediate crimp accommodates and compresses the plurality of graphite wires of the protruding end portion, and the plurality of graphite wires protrude out of the intermediate crimp end portion;
the jacking crimping pipe accommodates one end, extending out of the metal wire, of the graphite cable grounding down-lead wire and is compressed, a plurality of metal wires extending out of the end are reversely folded and arranged on the surface of the jacking crimping pipe, and the outer lamination connecting pipe is sleeved on the outermost side of the jacking crimping pipe and is compressed;
the inner tube accommodates the middle crimping tube and is compressed, graphite wires extending out of the middle crimping member are reversely folded and arranged on the outer surface of the inner tube, and the fourth crimping tube is sleeved on the outer surface of the inner tube and is compressed;
the outer tube accommodates the outer laminate adapter and compresses.
The embodiment of the invention has the following beneficial effects:
according to the tubular double-aperture five-layer crimping device provided by the invention, graphite wires extending out of a graphite cable grounding lead-down wire can be compressed in a middle crimping piece, the end part of the graphite cable grounding lead-down wire is crimped in a jacking crimping pipe, then a metal wire is paved on the surface of the jacking crimping pipe and is compressed by adopting an outer crimping piece, and the middle crimping piece and the outer crimping piece are accommodated in a tail pipe of a galvanized steel wiring board and are compressed; meanwhile, a layer of fourth pressing pipe is sleeved on the surface of the inner pipe of the tail pipe so as to further fix the graphite wire extending out of the end part of the middle pressing pipe, so that the direct contact connection between the metal wire and galvanized steel can be realized, meanwhile, the graphite wire and galvanized steel of the iron tower are reliably contacted and connected, and the excellent conductivity of the terminal joint part is ensured, and the terminal joint part is not lower than the grounding cable body;
meanwhile, one end of the graphite cable grounding down conductor is integrally contained in the crimping piece and extruded, and the tail pipe is extruded subsequently, so that the crimping device can be guaranteed to have strong anti-damage capability by matching with the two extrusion actions on the protection action of the steel armor in the graphite cable grounding down conductor in the joint.
Drawings
In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic view of the overall application environment of a dual-aperture five-layer crimping device provided by the invention;
FIG. 2 is a schematic view of the graphite cable ground down-lead of FIG. 1;
FIG. 3 is a schematic view of the galvanized steel wiring board of FIG. 1;
FIG. 4 is a bottom view of the galvanized steel wiring board of FIG. 3;
FIG. 5 is a schematic view of the intermediate crimp member of FIG. 1;
FIG. 6 is a schematic view of the construction of an outer laminate adapter;
FIG. 7 is a schematic view of the cross-sectional structure of the A-A direction in FIG. 1;
FIG. 8 is a schematic view of the B-B cross-sectional structure of FIG. 1.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
It should be noted here that, in order to avoid obscuring the present invention due to unnecessary details, only structures and/or processing steps closely related to the solution according to the present invention are shown in the drawings, while other details not greatly related to the present invention are omitted.
As shown in fig. 1, an overall application environment schematic diagram of a dual-aperture five-layer crimping device provided by the invention is shown; as shown in fig. 2 to 7. In this embodiment, the tubular dual-aperture five-layer crimping device includes a graphite cable grounding down-lead 9, a galvanized steel wiring board 8, and an intermediate connector 10, wherein:
the graphite cable grounding down conductor 9 comprises steel armor 93 and graphite woven cloth 90 from outside to inside, wherein the graphite woven cloth 90 is wrapped with a plurality of graphite wires 92 and metal wires 91 which are arranged in a stacked manner, and the graphite wires 92 and the metal wires 91 extend out of one end part of the graphite cable grounding down conductor 9; the steel armor 93 can enhance the capability of the graphite cable grounding down conductor 9 for preventing external force damage;
the galvanized steel wiring board 8 comprises a flat section 80 and a tail pipe, wherein a fixing hole 800 connected with an iron tower is formed in the flat section 80, the tail pipe further comprises an inner pipe 81 and an outer pipe 82 which are sequentially arranged, the pipe diameter of the outer pipe 82 is larger than that of the inner pipe 81, and in a specific example, the inner pipe and the outer pipe can be formed by inwards bending metal sheets, and the specific example can be seen in fig. 3;
the middle press-connection piece 10 is formed by bending a rectangular thin metal sheet, and a layer of graphite paper 12 is laid on the inner wall of the middle press-connection piece 10 through carbon nano conductive adhesive, as shown in fig. 5;
the outer laminated connection pipe 16 is a metal cylinder, and can be formed by bending a metal sheet, and the pipe diameter of the outer laminated connection pipe can accommodate the middle crimping piece 10, as shown in fig. 6;
the jacking crimping pipe 17 is a metal cylinder, and can be formed by bending a metal sheet, wherein the pipe diameter of the jacking crimping pipe can accommodate the graphite cable grounding downlead 9, and the shape of the jacking crimping pipe is similar to that shown in fig. 7.
The fourth crimp tube 18, which is a galvanized steel tube with a threaded bore in the inner surface, may be formed by bending a galvanized steel sheet, the tube diameter of which accommodates the inner tube 81, and the shape of which is similar to the shape shown in fig. 7.
Wherein the intermediate crimp 10 accommodates and compresses the plurality of graphite wires 92 of the protruding end portion, and the plurality of graphite wires 92 protrude out of the end portion of the intermediate crimp 10;
the jacking crimping pipe 17 accommodates one end of the graphite cable grounding down conductor 9, which extends out of the metal wire, and is compressed, a plurality of metal wires 91 extending out of the end are reversely folded and arranged on the surface of the jacking crimping pipe 17, and the outer lamination connecting pipe 16 is sleeved on the outermost side of the jacking crimping pipe 17 and is compressed;
the inner pipe 81 accommodates the intermediate crimping pipe 10 and is compressed, graphite wires 92 extending out of the intermediate crimping piece 10 are reversely arranged on the outer surface of the inner pipe 81, and the fourth crimping pipe 18 is sleeved on the outer surface of the inner pipe 81 and is compressed;
the outer tube 82 accommodates and compresses the outer crimp tubing 16.
The following briefly describes the construction process of the intermediate connector in the implementation application:
firstly, a tail pipe of a galvanized steel wiring board 8 is manufactured, and a steel plate (shown in fig. 3) is adopted to be bent at 180 degrees from one end to the other end to form an inner pipe 81; the other end is then bent 360 degrees to the opposite side to form the outer tube 82. The steel plate width of the inner tube 81 is only the width of the outer tube 82, and the thickness of the inner tube 81 is smaller than that of the outer tube 82
Then, the end of the graphite cable grounding down-lead 9 is stripped to a certain length of steel armor 93 and graphite woven cloth 90, the metal wire 91 and graphite wire 92 of the exposed end are inserted into the middle press-connection piece 10, and the separated graphite wire 92 is extended out of the end of the middle press-connection piece 10;
the jacking crimping pipe 17 is sleeved on one end, extending out of the metal wires, of the graphite cable grounding down-lead 9 and is compressed, a plurality of metal wires 91 extending out of the end are reversely folded and arranged on the surface of the jacking crimping pipe 17, and then the outer lamination connecting pipe 16 is sleeved on the outermost side of the jacking crimping pipe 17 and is compressed;
inserting the crimped intermediate crimp tube 10 into the inner tube 81 of the tail tube while inserting the crimped outer laminate crimp tube 169 into the outer tube 82 of the tail tube, and vertically extruding the tail tube up and down; at this time, the reserved graphite wires 92 at the front end are reversely folded and pressed on the outer surface of the inner tube 81, and then the fourth pressing tube 18 is sleeved, so that the fourth pressing tube 18 is vertically and horizontally pressed relatively while the graphite wires 92 are tensioned, and the graphite wires 81 are used for mainly bearing the external force pulling action of the grounding down lead of the graphite belt.
Therefore, a terminal connector for connecting the graphite belt grounding down conductor with the tower material of the iron tower is formed, so that the metal wire can be completely and metallic connected, and meanwhile, the protection effect of the steel armor is not affected.
The embodiment of the invention has the following beneficial effects:
according to the tubular double-aperture five-layer crimping device provided by the invention, graphite wires extending out of a graphite cable grounding lead-down wire can be compressed in a middle crimping piece, the end part of the graphite cable grounding lead-down wire is crimped in a jacking crimping pipe, then a metal wire is paved on the surface of the jacking crimping pipe and is compressed by adopting an outer crimping piece, and the middle crimping piece and the outer crimping piece are accommodated in a tail pipe of a galvanized steel wiring board and are compressed;
meanwhile, a layer of fourth pressing pipe is sleeved on the surface of the inner pipe of the tail pipe so as to further fix the graphite wire extending out of the end part of the middle pressing pipe, so that the direct contact connection between the metal wire and galvanized steel can be realized, meanwhile, the graphite wire and galvanized steel of the iron tower are reliably contacted and connected, and the excellent conductivity of the terminal joint part is ensured, and the terminal joint part is not lower than the grounding cable body;
meanwhile, one end of the graphite cable grounding down conductor is integrally contained in the outer tube and extruded, and the tail tube is extruded subsequently, so that the two extrusion actions are matched on the protection action of the steel armor in the graphite cable grounding down conductor in the joint, and the crimping device can be guaranteed to have strong anti-damage capability;
because the tail pipe adopts inner tube and outer tube structure, set up the cooperation between wedge and the U type groove simultaneously, and V type groove and V type wedge surface set up the one deck seal and like the glue film to make the location more accurate, sealed effect is better, can laminate crimping piece and graphite cable ground connection downlead more, makes the structure more firm.
It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
The foregoing is merely a specific embodiment of the present application and it should be noted that numerous modifications and adaptations can be made by those skilled in the art without departing from the principles of the present application and such modifications and adaptations are intended to be comprehended within the scope of the present application.
Claims (2)
1. The utility model provides a five layers crimping device in dual aperture, its characterized in that includes graphite cable ground connection downlead, galvanized steel wiring board and intermediate junction head, wherein:
the graphite cable grounding down-lead comprises steel armor and graphite woven cloth from outside to inside, wherein the graphite woven cloth is wrapped with a plurality of graphite wires and metal wires, and the graphite wires and the metal wires extend out of one end part of the graphite cable grounding down-lead and are separated;
the galvanized steel wiring board comprises a flat section and a tail pipe, wherein the tail pipe further comprises an inner pipe and an outer pipe which are sequentially arranged, and the pipe diameter of the outer pipe is larger than that of the inner pipe;
the middle crimping piece is a metal cylinder with a gap;
the jacking pressure connection pipe is a metal cylinder;
the outer layer is laminated to take over, is a metal cylinder;
a fourth press connection pipe which is a galvanized steel pipe with threads bored on the inner surface;
wherein the intermediate crimp accommodates and compresses a plurality of graphite wires extending out of the end portion, and the plurality of graphite wires extend out of the end portion of the intermediate crimp;
the jacking crimping pipe accommodates one end, extending out of the metal wire, of the graphite cable grounding down-lead wire and is compressed, a plurality of metal wires extending out of the end are reversely folded and arranged on the surface of the jacking crimping pipe, and the outer lamination connecting pipe is sleeved on the outermost side of the jacking crimping pipe and is compressed;
the inner tube accommodates the middle crimping piece and is compressed, graphite wires extending out of the middle crimping piece are reversely folded and arranged on the outer surface of the inner tube, and the fourth crimping pipe is sleeved on the outer surface of the inner tube and is compressed;
the outer tube accommodates the outer laminate adapter and is compressed;
the construction process of the intermediate connector in the implementation application comprises the following steps:
firstly, manufacturing a tail pipe of a galvanized steel wiring board, and bending the tail pipe by 180 degrees from one end to the other end by adopting a steel plate to form an inner pipe; the other end is bent towards the opposite side by 360 degrees to form an outer tube;
then, stripping the end of the graphite cable grounding down-lead out a certain length of steel armor and graphite woven cloth, exposing the metal wire and graphite wire at the end, inserting the separated graphite wire into the middle crimping piece, and extending out of the end of the middle crimping piece;
sleeving and pressing the jacking crimping pipe on one end, extending out of the metal wire, of the grounding down-lead of the graphite cable, reversely folding and arranging a plurality of metal wires extending out of the end part on the surface of the jacking crimping pipe, and sleeving and pressing the outer lamination crimping pipe on the outermost side of the jacking crimping pipe;
inserting the crimped middle crimp tube into the inner tube of the tail tube, simultaneously inserting the crimped outer crimp tube into the outer tube of the tail tube, and vertically extruding the tail tube up and down; at the moment, the reserved graphite wires at the front end are reversely folded and pressed on the outer surface of the inner tube, and then a fourth pressing connection tube is sleeved, and the fourth pressing connection tube is vertically and horizontally oppositely pressed while the graphite wires are tensioned;
therefore, a terminal joint for connecting the graphite belt grounding down conductor with the tower material of the iron tower is formed, and the metal wire is completely connected with the metal wire.
2. A dual bore five layer crimping device as claimed in claim 1 wherein said inner tube has a thickness less than said outer tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810398027.9A CN108429019B (en) | 2018-04-28 | 2018-04-28 | Five-layer crimping device with double apertures |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810398027.9A CN108429019B (en) | 2018-04-28 | 2018-04-28 | Five-layer crimping device with double apertures |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108429019A CN108429019A (en) | 2018-08-21 |
| CN108429019B true CN108429019B (en) | 2024-02-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201810398027.9A Active CN108429019B (en) | 2018-04-28 | 2018-04-28 | Five-layer crimping device with double apertures |
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| CN (1) | CN108429019B (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110994206B (en) * | 2019-11-21 | 2021-10-01 | 深圳供电局有限公司 | Graphite grounding strip connecting device and graphite grounding strip connecting method |
| CN111106456B (en) * | 2019-11-21 | 2021-09-14 | 深圳供电局有限公司 | Graphite grounding strip connecting device and graphite grounding strip connecting method |
| CN111029796B (en) * | 2019-11-21 | 2021-09-14 | 深圳供电局有限公司 | Graphite grounding strip connecting device and graphite grounding strip connecting method |
| CN110957589A (en) * | 2019-11-21 | 2020-04-03 | 深圳供电局有限公司 | Graphite grounding cable connecting device and graphite grounding cable connecting method |
| CN111029797B (en) * | 2019-11-21 | 2021-09-14 | 深圳供电局有限公司 | Graphite grounding strip connecting device and graphite grounding strip connecting method |
| CN110957590A (en) * | 2019-11-21 | 2020-04-03 | 深圳供电局有限公司 | Graphite grounding strip connecting device and graphite grounding strip connecting method |
| CN110994207B (en) * | 2019-11-21 | 2021-09-10 | 深圳供电局有限公司 | Graphite grounding strip connecting device and graphite grounding strip connecting method |
| CN113270738B (en) * | 2021-05-28 | 2022-10-18 | 国网河南省电力公司西峡县供电公司 | Improved structure of grounding down lead of transmission line tower |
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| US7287990B1 (en) * | 2006-07-21 | 2007-10-30 | At&T Corp. | Method and apparatus for grounding a cable |
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| US7287990B1 (en) * | 2006-07-21 | 2007-10-30 | At&T Corp. | Method and apparatus for grounding a cable |
| CN105958505A (en) * | 2016-05-27 | 2016-09-21 | 国网新疆电力公司乌鲁木齐供电公司 | Graphene intelligent capacitor |
| CN206673130U (en) * | 2017-03-24 | 2017-11-24 | 国网山西省电力公司大同供电公司 | A kind of external force damage prevention soft graphite downlead |
| CN208045918U (en) * | 2018-04-28 | 2018-11-02 | 深圳供电局有限公司 | A kind of lamination of Based on Dual-Aperture three connection device |
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|---|---|
| CN108429019A (en) | 2018-08-21 |
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