CN114039227A - Novel closed-phase assembled grounding wire - Google Patents
Novel closed-phase assembled grounding wire Download PDFInfo
- Publication number
- CN114039227A CN114039227A CN202111322205.8A CN202111322205A CN114039227A CN 114039227 A CN114039227 A CN 114039227A CN 202111322205 A CN202111322205 A CN 202111322205A CN 114039227 A CN114039227 A CN 114039227A
- Authority
- CN
- China
- Prior art keywords
- earth connection
- grounding
- grounding wire
- wire
- box
- 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.)
- Granted
Links
- 239000000523 sample Substances 0.000 claims abstract description 29
- 238000000034 method Methods 0.000 claims abstract description 10
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 5
- 229910052802 copper Inorganic materials 0.000 claims abstract description 4
- 239000010949 copper Substances 0.000 claims abstract description 4
- 238000002788 crimping Methods 0.000 claims description 6
- 239000002689 soil Substances 0.000 claims description 5
- 230000000007 visual effect Effects 0.000 claims description 5
- 238000009413 insulation Methods 0.000 claims description 3
- 239000004020 conductor Substances 0.000 claims description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005316 response function Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
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
- H01R11/00—Individual connecting elements providing two or more spaced connecting locations for conductive members which are, or may be, thereby interconnected, e.g. end pieces for wires or cables supported by the wire or cable and having means for facilitating electrical connection to some other wire, terminal, or conductive member, blocks of binding posts
- H01R11/11—End pieces or tapping pieces for wires, supported by the wire and for facilitating electrical connection to some other wire, terminal or conductive member
- H01R11/12—End pieces terminating in an eye, hook, or fork
- H01R11/14—End pieces terminating in an eye, hook, or fork the hook being adapted for hanging on overhead or other suspended lines, e.g. hot line clamp
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R11/00—Individual connecting elements providing two or more spaced connecting locations for conductive members which are, or may be, thereby interconnected, e.g. end pieces for wires or cables supported by the wire or cable and having means for facilitating electrical connection to some other wire, terminal, or conductive member, blocks of binding posts
- H01R11/11—End pieces or tapping pieces for wires, supported by the wire and for facilitating electrical connection to some other wire, terminal or conductive member
- H01R11/32—End pieces with two or more terminations
-
- 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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R43/00—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Suspension Of Electric Lines Or Cables (AREA)
- Details Of Connecting Devices For Male And Female Coupling (AREA)
Abstract
The invention discloses a novel phase-combination assembled grounding wire which comprises a plurality of grounding wire insulating operating rods, grounding probes and a wiring terminal box, wherein each grounding wire insulating operating rod is connected to the wiring terminal box through a grounding wire I, the wiring terminal box is connected to the grounding probes through a grounding wire II, the wiring terminal box is hung to a cross arm above a middle phase conducting wire, the front end of each grounding wire insulating operating rod is hung with the conducting wire, and the tail end of each grounding wire insulating operating rod is fixed to the cross arm through a buckle. In the overhauling process, each part of the assembled grounding wire can be combined at high altitude only in a few seconds through the specially-made wiring terminal box, the safety coefficient is high, the working intensity is greatly reduced, the knotting of the annealed copper wires is effectively avoided, the arrangement is convenient, and the labor intensity is reduced.
Description
Technical Field
The invention relates to a novel combined-phase assembled grounding wire, and belongs to the technical field of grounding equipment.
Background
At present, in the power failure maintenance process of a 35kV power transmission line, phase-combination grounding wires are used, the grounding wires are integrated, the weight of the whole grounding wire is too heavy, and hitching personnel need to bear the weight of the whole group of grounding wires at one time when the hanging personnel are transferred from the ground to the high altitude; secondly, in the overall grounding wire, an insulating operating rod can be wound with the grounding wire in the transmission process, and workers need to perform secondary arrangement at high altitude; thirdly, after the grounding wire is hung, no reliable point support exists, so that the insulating operating rod is perpendicular to the ground, and the operating rod is difficult to reach manually during dismantling; fourthly, when meeting the ground with hard soil, the grounding probe is difficult to be driven into the ground or the depth of the grounding probe driven into the ground does not meet the regulation requirement; and fifthly, no special tool box is used for storage. .
Disclosure of Invention
The technical problem to be solved by the invention is as follows: the utility model provides a novel close looks assembled earth connection to solve the problem that exists among the above-mentioned prior art.
The technical scheme adopted by the invention is as follows: the utility model provides a novel close looks assembled earth connection, includes earth connection insulating bar, ground probe and binding post case, and earth connection insulating bar adopts many, and every earth connection insulating bar is connected to the binding post case through earth connection one, and the binding post case is connected to ground probe through earth connection two, and the binding post case articulates well phase conductor top cross arm department, and earth connection insulating bar front end articulates the wire, and the tail end passes through the buckle to be fixed in cross arm department.
Preferably, each ground wire insulation operating rod is of a segmented assembly structure.
Preferably, above-mentioned wiring terminal box includes case seat, conducting block, electrically conductive breach and case lid, and conducting block fixed connection is on the case seat, and conducting block downside middle part and the left and right sides all are connected to the electrically conductive breach of conducting block through crimping screw, and the case lid closes on the conducting block and the terminal surface is provided with the breach of card income binding post, and case seat upside middle part is provided with the hole of hitching.
Preferably, a distance sensor is arranged at the inner end of each conductive notch, the distance sensors are connected to a controller, the controller is connected with an audible and visual alarm, the audible and visual alarms are multiple, and each audible and visual alarm is arranged at a box cover corresponding to the conductive notch.
Preferably, the first ground wire and the second ground wire both use annealed copper wires.
Preferably, above-mentioned novel combination phase equipment formula earth connection still includes portable containing box, and portable containing box is provided with the box groove one of placing earth connection insulating bar, terminal box and ground connection probe and the box groove two of placing the earth connection, adopts the case lid to close.
Preferably, the front end of the grounding probe is of a spiral conical structure, and the tail end of the grounding probe is provided with a connecting part for crimping the grounding wire II.
An operation method of a novel combined assembled grounding wire comprises the following steps: firstly, in the process of hanging the ground wire, an operator inserts the grounding probe into the ground, if the ground wire meets hard soil, the grounding probe is mechanically inserted through a special tool, the operator on the pole hangs the wiring terminal box to the position of a cross arm above a middle phase lead, the ground operator inserts the second grounding end of the grounding wire into the grounding probe, and the operator on the pole inserts the other end of the grounding wire into the middle part of the lower side of the wiring terminal box, so that the grounding work of the grounding wire can be finished; secondly, ground operating personnel according to wire and cross arm distance, the earth connection insulated operating rod of settlement length is assembled, transmit to on the pole, the staff will connect three earth connections of settlement length to insert respectively in the terminal box on the pole, three earth connections one other end is connected to three earth connection insulated operating rods respectively, three earth connection insulated operating rods articulate to corresponding wire again, earth connection insulated operating rod tail end passes through the buckle to be fixed in cross arm department, the earth connection articulates the work and accomplishes, can otherwise when demolising the earth connection, the terminal box can respond to earth connection one or earth connection terminal and insert whether target in place, if not target in place, then the terminal box can be at the scintillation of the terminal department alarm lamp that corresponds and send the bee sound.
The invention has the beneficial effects that: compared with the prior art, in the overhauling process, each part of the assembled grounding wire can be combined at the high altitude only in a few seconds through the specially-made wiring terminal box, the safety coefficient is high, the working intensity is greatly reduced, the knotting of the annealed copper wire is effectively avoided, the sorting is convenient, and the labor intensity is reduced.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of a connection terminal box;
fig. 3 is a schematic sectional view of the connection terminal box.
Detailed Description
The invention is further described with reference to the accompanying drawings and specific embodiments.
Example 1: as shown in fig. 1-3, a novel phase-closed assembled ground wire comprises a plurality of ground wire insulating operation rods 1, a grounding probe 2 and a wiring terminal box 3, wherein each ground wire insulating operation rod 1 is connected to the wiring terminal box 3 through a first ground wire 4, the wiring terminal box 3 is connected to the grounding probe 2 through a second ground wire 5, the wiring terminal box 3 is connected to a cross arm above a middle phase wire, the front end of the ground wire insulating operation rod 1 is connected with the wire, and the tail end of the ground wire insulating operation rod is fixed to the cross arm through a buckle.
Preferably, each ground wire insulation operating rod 1 has a sectional type assembly structure, is connected by a threaded portion, is easy to assemble and disassemble, and can be assembled and adjusted in length as required.
Preferably, above-mentioned wiring terminal box 3 includes case seat 301, conducting block 302, electrically conductive breach 303 and case lid 304, conducting block 302 fixed connection on case seat 301, conducting block 302 downside middle part and the left and right sides all are connected to conducting block 302's electrically conductive breach 303 through crimping screw 305, case lid 304 lid closes on conducting block 302 and the terminal surface is provided with the breach of card income binding post, case seat 301 upside middle part is provided with hitching hole 306, loading and unloading convenient and fast, connect reliable and stable.
Preferably, every electrically conductive breach 303 inner is provided with distance sensor, distance sensor is connected to the controller, the controller is connected with audible-visual annunciator, audible-visual annunciator adopts a plurality ofly, every case lid 304 department of arranging at electrically conductive breach 303 correspondence, the controller is connected with the power, power and controller are installed in the case seat, earth connection junction box has the response function, if the earth connection terminal inserts not in place, the junction box can send the buzzing sound, the pilot lamp twinkles fast, ensure to ground reliably.
Preferably, the first grounding wire 4 and the second grounding wire 5 both adopt soft copper wires, so that the weight is light, and the connection and hanging are convenient.
Preferably, above-mentioned novel combination phase equipment formula earth connection still includes portable containing box, portable containing box is provided with places earth connection insulating bar, the box groove one of wiring terminal case and ground connection probe and the box groove two of placing the earth connection, adopt the case lid to close, in the maintenance transportation, parts such as earth connection and insulating bar separately deposit to corresponding toolbox, transport on rugged and uneven mountain region, or when artifical when carrying on the mountain road, can prevent to rub between earth connection and other objects, thereby damage the earth connection, secondly, the toolbox is carried more easily.
Preferably, the front end of the grounding probe 2 is of a spiral conical structure, and the tail end of the grounding probe is provided with a connecting part for crimping the grounding wire II, so that the grounding probe can be conveniently driven into hard soil.
Example 2: an operation method of a novel combined assembled grounding wire comprises the following steps: firstly, in the process of hanging the ground wire, an operator inserts the grounding probe into the ground, if the ground wire meets hard soil, the grounding probe is mechanically inserted through a special tool, the operator on the pole hangs the wiring terminal box to the position of a cross arm above a middle phase lead, the ground operator inserts the second grounding end of the grounding wire into the grounding probe, and the operator on the pole inserts the other end of the grounding wire into the middle part of the lower side of the wiring terminal box, so that the grounding work of the grounding wire can be finished; secondly, ground operating personnel according to wire and cross arm distance, the earth connection insulated operating rod of settlement length is assembled, transmit to on the pole, the staff will connect three earth connections of settlement length to insert respectively in the terminal box on the pole, three earth connections one other end is connected to three earth connection insulated operating rods respectively, three earth connection insulated operating rods articulate to corresponding wire again, earth connection insulated operating rod tail end passes through the buckle to be fixed in cross arm department, the earth connection articulates the work and accomplishes, otherwise can when demolising the earth connection, the terminal box is provided with the response alarm, the response alarm can respond to earth connection one or earth connection terminal and insert whether target in place, if not target in place, then the terminal box can be at the alarm lamp scintillation of corresponding terminal department and send the bee sound.
The above description is only an embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of changes or substitutions within the technical scope of the present invention, and therefore, the scope of the present invention should be determined by the scope of the claims.
Claims (8)
1. The utility model provides a novel closed looks assembled earth connection which characterized in that: including earth connection insulating bar (1), earthing probe (2) and binding post case (3), earth connection insulating bar (1) adopts many, every earth connection insulating bar (1) is connected to binding post case (3) through earth connection (4), binding post case (3) are connected to earthing probe (2) through earth connection two (5), binding post case (3) are articulated to well phase conductor top cross arm department, earth connection insulating bar (1) front end articulates the wire, the tail end passes through the buckle to be fixed in cross arm department.
2. The novel close-phase assembly type grounding wire according to claim 1, characterized in that: each grounding wire insulation operating rod (1) is of a sectional type assembly structure.
3. The novel close-phase assembly type grounding wire according to claim 1, characterized in that: the wiring terminal box (3) comprises a box base (301), a conductive block (302), a conductive notch (303) and a box cover (304), the conductive block (302) is fixedly connected onto the box base (301), the middle part of the lower side of the conductive block (302) and the left side and the right side of the conductive block are connected to the conductive notch (303) of the conductive block (302) through a crimping screw (305), the box cover (304) covers the conductive block (302), the end face of the box cover is provided with a notch for clamping a wiring terminal, and the middle part of the upper side of the box base (301) is provided with a hanging hole (306).
4. The novel close-phase assembly type grounding wire according to claim 3, characterized in that: the inner of each conductive notch (303) is provided with a distance sensor, the distance sensor is connected to a controller, the controller is connected with an audible and visual alarm, the audible and visual alarm is multiple, and each box cover (304) corresponding to the conductive notch (303) is arranged.
5. The novel close-phase assembly type grounding wire according to claim 1, characterized in that: the first grounding wire (4) and the second grounding wire (5) both adopt soft copper wires.
6. The novel close-phase assembly type grounding wire according to claim 1, characterized in that: still include portable containing box, portable containing box is provided with the grid groove one of placing earth connection insulating bar, wiring terminal box and ground connection probe and the grid groove two of placing the earth connection, adopts the case lid to close.
7. The novel close-phase assembly type grounding wire according to claim 1, characterized in that: the front end of the grounding probe (2) is of a spiral conical structure, and the tail end of the grounding probe is provided with a connecting part for crimping a grounding wire II.
8. The operation method of the novel combined assembled earth connection according to any one of claims 1-7, characterized in that: the method comprises the following steps: firstly, in the process of hanging the ground wire, an operator inserts the grounding probe into the ground, if the ground wire meets hard soil, the grounding probe is mechanically inserted through a special tool, the operator on the pole hangs the wiring terminal box to the position of a cross arm above a middle phase lead, the ground operator inserts the second grounding end of the grounding wire into the grounding probe, and the operator on the pole inserts the other end of the grounding wire into the middle part of the lower side of the wiring terminal box, so that the grounding work of the grounding wire can be finished; secondly, ground operating personnel assemble the earth connection insulated operating rod with the set length according to the distance between the conducting wire and the cross arm, the earth connection insulated operating rod is transmitted to the rod, the working personnel on the rod inserts three earth connections with the set length into the junction box respectively, the other ends of the three earth connections are connected to the three earth connection insulated operating rods respectively, the three earth connection insulated operating rods are connected to the corresponding conducting wires in a hanging mode, the tail end of the earth connection insulated operating rod is fixed to the cross arm through a buckle, the earth connection hanging operation is completed, and the earth connection is removed otherwise.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111322205.8A CN114039227B (en) | 2021-11-09 | 2021-11-09 | Combined assembled grounding wire |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111322205.8A CN114039227B (en) | 2021-11-09 | 2021-11-09 | Combined assembled grounding wire |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114039227A true CN114039227A (en) | 2022-02-11 |
| CN114039227B CN114039227B (en) | 2024-04-12 |
Family
ID=80136930
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111322205.8A Active CN114039227B (en) | 2021-11-09 | 2021-11-09 | Combined assembled grounding wire |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114039227B (en) |
Citations (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101719640A (en) * | 2009-11-05 | 2010-06-02 | 齐齐哈尔电业局 | Operation method of connecting charged lead with by-pass jumper for 10 kV wire multi-loop on same tower |
| CN202259759U (en) * | 2011-10-18 | 2012-05-30 | 安徽省电力公司滁州供电公司 | Sectional grounding wire |
| CN103066526A (en) * | 2012-12-07 | 2013-04-24 | 河南省电力公司洛阳供电公司 | Grounding wire method applied to high-tension transmission line and separated type grounding tool |
| CN203056272U (en) * | 2012-12-09 | 2013-07-10 | 国家电网公司 | A safety grounding device |
| CN203553547U (en) * | 2013-10-29 | 2014-04-16 | 国家电网公司 | Ground wire with protective rope |
| CN203589662U (en) * | 2013-12-13 | 2014-05-07 | 国家电网公司 | Sectional ground wire connection structure |
| CN203895633U (en) * | 2014-04-09 | 2014-10-22 | 国家电网公司 | Short circuit grounding wire suitable for box transformer substation and electricity distribution room |
| CN206274554U (en) * | 2016-12-22 | 2017-06-23 | 国网福建省电力有限公司 | A kind of dismountable portable high-pressure ground wire |
| CN207069254U (en) * | 2017-06-29 | 2018-03-02 | 广西电网有限责任公司贵港供电局 | 500kV ground wire assembly and disassembly servicing units |
| CN107834222A (en) * | 2017-10-12 | 2018-03-23 | 国家电网公司 | A kind of low-voltage grounding wire group |
| CN107901005A (en) * | 2017-06-19 | 2018-04-13 | 国网浙江省电力公司湖州供电公司 | A kind of portable high-pressure ground wire hangs case |
| CN108418006A (en) * | 2018-04-28 | 2018-08-17 | 广东电网有限责任公司 | A combinable and telescopic grounding wire operating rod |
| CN108511931A (en) * | 2018-04-03 | 2018-09-07 | 国网安徽省电力有限公司宣城供电公司 | A kind of high-voltage grounding wire with extension type short-circuit line |
| DE202019106867U1 (en) * | 2019-12-10 | 2020-02-14 | Unger Kabel-Konfektionstechnik GmbH | Connection device for electrical contacting of an electrical device |
| CN111786312A (en) * | 2020-07-08 | 2020-10-16 | 国网甘肃省电力公司白银供电公司 | A tool for assembling and disassembling the ground wire of an overhead transmission line |
| CN211701249U (en) * | 2020-04-15 | 2020-10-16 | 国网北京市电力公司 | Device for fixing operating rod in whole process during overhead operation of transmission tower |
| CN213753363U (en) * | 2020-11-24 | 2021-07-20 | 云南电网有限责任公司昭通供电局 | Light-duty portable three-phase short circuit earth connection device |
-
2021
- 2021-11-09 CN CN202111322205.8A patent/CN114039227B/en active Active
Patent Citations (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101719640A (en) * | 2009-11-05 | 2010-06-02 | 齐齐哈尔电业局 | Operation method of connecting charged lead with by-pass jumper for 10 kV wire multi-loop on same tower |
| CN202259759U (en) * | 2011-10-18 | 2012-05-30 | 安徽省电力公司滁州供电公司 | Sectional grounding wire |
| CN103066526A (en) * | 2012-12-07 | 2013-04-24 | 河南省电力公司洛阳供电公司 | Grounding wire method applied to high-tension transmission line and separated type grounding tool |
| CN203056272U (en) * | 2012-12-09 | 2013-07-10 | 国家电网公司 | A safety grounding device |
| CN203553547U (en) * | 2013-10-29 | 2014-04-16 | 国家电网公司 | Ground wire with protective rope |
| CN203589662U (en) * | 2013-12-13 | 2014-05-07 | 国家电网公司 | Sectional ground wire connection structure |
| CN203895633U (en) * | 2014-04-09 | 2014-10-22 | 国家电网公司 | Short circuit grounding wire suitable for box transformer substation and electricity distribution room |
| CN206274554U (en) * | 2016-12-22 | 2017-06-23 | 国网福建省电力有限公司 | A kind of dismountable portable high-pressure ground wire |
| CN107901005A (en) * | 2017-06-19 | 2018-04-13 | 国网浙江省电力公司湖州供电公司 | A kind of portable high-pressure ground wire hangs case |
| CN207069254U (en) * | 2017-06-29 | 2018-03-02 | 广西电网有限责任公司贵港供电局 | 500kV ground wire assembly and disassembly servicing units |
| CN107834222A (en) * | 2017-10-12 | 2018-03-23 | 国家电网公司 | A kind of low-voltage grounding wire group |
| CN108511931A (en) * | 2018-04-03 | 2018-09-07 | 国网安徽省电力有限公司宣城供电公司 | A kind of high-voltage grounding wire with extension type short-circuit line |
| CN108418006A (en) * | 2018-04-28 | 2018-08-17 | 广东电网有限责任公司 | A combinable and telescopic grounding wire operating rod |
| DE202019106867U1 (en) * | 2019-12-10 | 2020-02-14 | Unger Kabel-Konfektionstechnik GmbH | Connection device for electrical contacting of an electrical device |
| CN211701249U (en) * | 2020-04-15 | 2020-10-16 | 国网北京市电力公司 | Device for fixing operating rod in whole process during overhead operation of transmission tower |
| CN111786312A (en) * | 2020-07-08 | 2020-10-16 | 国网甘肃省电力公司白银供电公司 | A tool for assembling and disassembling the ground wire of an overhead transmission line |
| CN213753363U (en) * | 2020-11-24 | 2021-07-20 | 云南电网有限责任公司昭通供电局 | Light-duty portable three-phase short circuit earth connection device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114039227B (en) | 2024-04-12 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201886618U (en) | High-voltage cable metal sheath earth circulating current monitoring terminal and system | |
| CN113363868A (en) | Exempt from to ascend a height grounding box | |
| CN211556189U (en) | High altitude power line earth connection is hung with test electric alarming function | |
| CN114039227A (en) | Novel closed-phase assembled grounding wire | |
| CN108233183A (en) | A kind of safety-type lightning rod earthing or grounding means | |
| CN208188186U (en) | A kind of transmission line of electricity lightning protection detection system | |
| CN214851311U (en) | IoT-based monitoring and early warning system for geotechnical safety | |
| CN206364327U (en) | A kind of anti-open circuit electrical connector cable component | |
| CN211955707U (en) | High-voltage cable and channel comprehensive intelligent on-line monitoring device | |
| CN107255762A (en) | A kind of lightning protection detecting system | |
| CN204190345U (en) | 110kV and the cross interconnected protective earthing case of above band detection of electrical leakage type | |
| CN215897272U (en) | Intelligent grounding box | |
| CN211655398U (en) | Power distribution cabinet convenient to maintain | |
| CN211150812U (en) | Novel grounding wire device | |
| CN208157665U (en) | A kind of pipe bus inductance earthing or grounding means being exclusively used in line maintenance | |
| CN208352659U (en) | Socket | |
| CN206994137U (en) | A kind of termite-monitoring device | |
| CN217984474U (en) | Lightning protection system for dangerous chemical storage device | |
| CN206113948U (en) | Vertical pile driver verticality real time monitoring alarm device | |
| CN207098750U (en) | A kind of power equipment remote monitoring device based on PLC technology | |
| CN205787820U (en) | Power anti-electricity-theft and alarm device | |
| CN205882639U (en) | A multi -functional vertical support device for communication cable | |
| CN210350151U (en) | Multifunctional combined grounding wire device | |
| CN212083583U (en) | Power distribution network operation detection device of power system | |
| CN205910178U (en) | Lightning protection aquaculture water quality monitoring device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |