CN113866489B - Telescopic induction electroscope - Google Patents
Telescopic induction electroscope Download PDFInfo
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- CN113866489B CN113866489B CN202111136997.XA CN202111136997A CN113866489B CN 113866489 B CN113866489 B CN 113866489B CN 202111136997 A CN202111136997 A CN 202111136997A CN 113866489 B CN113866489 B CN 113866489B
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- telescopic
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
- G01R19/145—Indicating the presence of current or voltage
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R1/00—Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
- G01R1/02—General constructional details
- G01R1/04—Housings; Supporting members; Arrangements of terminals
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- General Physics & Mathematics (AREA)
- Electric Cable Installation (AREA)
- Measurement Of Current Or Voltage (AREA)
Abstract
The application discloses telescopic response electroscope includes: slide fastener, hanging ear, induction head, telescopic loop bar and controller; the telescopic sleeve rod is formed by sleeving a plurality of telescopic sleeve rods; the connecting end of the adjacent telescopic loop bar is provided with a locking thread and a thread knob; the induction head is arranged at the head end of the telescopic loop bar, and an NCV induction device is arranged inside the induction head; the slide fastener is arranged on the induction head, and a pulley is arranged in the slide fastener; the hanging lugs comprise conductor rings and insulating rings; the conductor ring has elasticity; the insulating ring is attached to the induction head by the elasticity of the conductor ring; the controller is arranged at the tail end of the telescopic loop bar and comprises a processing module, an operating module and a display module which are electrically connected with each other; the processing module is electrically connected with the induction head. Whether the lead is electrified or not can be detected by arranging the induction head with the NCV induction device; through flexible loop bar, can detect low pressure overhead line, need not scramble the low-voltage pole, improve detection efficiency, solve the lower problem of current electroscope troubleshooting inefficiency.
Description
Technical Field
The application relates to the technical field of electroscope, in particular to a telescopic induction electroscope.
Background
Electroscope is often needed in the production rush repair work of 0.4kV and other low-voltage distribution networks. The existing electroscope is mostly a contact electroscope, and whether electrification is detected only by peeling off the insulating wire skin. If the overhead line is disconnected in the middle and no obvious disconnection point exists, the difficulty of finding the disconnection position through the piezoelectric device is very great, and even the transformer is required to be found from the front line of the user meter.
For an overhead line erected on an electric pole, a low-voltage electric pole is climbed by using a climbers and a safety belt, and whether the electric pole is electrified or not can be detected by peeling off an insulating wire skin; when the jumper wire provided with the insulating wire skin is disconnected in the middle, whether the insulating wire skin is electrified or not can be detected by peeling off the insulating wire skin, so that a lot of time can be wasted in the production of the imperative work of rush repair, and the electricity utilization experience of a user is affected.
Disclosure of Invention
In view of this, the purpose of this application is to provide a telescopic response electroscope for solve current electroscope troubleshooting inefficiency's problem.
To achieve the above technical object, the present application provides a telescopic induction electroscope, comprising: slide fastener, hanging ear, induction head, telescopic loop bar and controller;
the telescopic loop bar is formed by mutually sleeving a plurality of telescopic loop bars;
the connecting end of the adjacent telescopic loop bars is provided with locking threads and a threaded knob;
the induction head is arranged at the head end of the telescopic loop rod, and an NCV induction device is arranged in the induction head;
the slide fastener is arranged on the induction head, and a pulley is arranged in the slide fastener;
the hanging lugs comprise conductor rings and insulating rings;
the conductor ring has elasticity, one end of the conductor ring is connected with the induction head, and the other end of the conductor ring is connected with the insulating ring;
the insulating ring is attached to the induction head by the elasticity of the conductor ring, and a wire imbedding cavity is formed between the insulating ring and the conductor ring;
the controller is arranged at the tail end of the telescopic loop rod and comprises a processing module, an operation module and a display module which are electrically connected with each other;
the processing module is electrically connected with the induction head and is used for sensing whether a wire is electrified or not and detecting the current of the wire through the conductor ring.
Further, a telescopic stay bar with a supporting function is arranged in the telescopic loop bar;
and two ends of the telescopic stay bar are respectively connected with two ends of the telescopic loop bar.
Further, a spring is wound on the telescopic stay bar;
and two ends of the spring are respectively connected with two ends of the telescopic stay bar.
Further, the processing module is connected with the induction head through an electric wire;
the wire and the spring are wound in the same rotation direction and are attached to the spring.
Further, the connecting ends of the adjacent telescopic loop bars are provided with push type buckle connecting structures.
Further, the controller also comprises a signal module;
the signal module is electrically connected with the processing module and is used for sending out an alarm signal when the lead is electrified.
Further, the alarm signal comprises an acoustic signal and an optical signal;
the signal module comprises a sounder and an indicator lamp.
Further, a searchlight is arranged at the end part of the telescopic loop bar.
Further, the shell of inductive head is transparent material, and inside be provided with the spotlight of controller electricity connection.
From the above technical scheme, the application provides a telescopic induction electroscope, include: slide fastener, hanging ear, induction head, telescopic loop bar and controller; the telescopic loop bar is formed by mutually sleeving a plurality of telescopic loop bars; the connecting end of the adjacent telescopic loop bars is provided with locking threads and a threaded knob; the induction head is arranged at the head end of the telescopic loop rod, and an NCV induction device is arranged in the induction head; the slide fastener is arranged on the induction head, and a pulley is arranged in the slide fastener; the hanging lugs comprise conductor rings and insulating rings; the conductor ring has elasticity, one end of the conductor ring is connected with the induction head, and the other end of the conductor ring is connected with the insulating ring; the insulating ring is attached to the induction head by the elasticity of the conductor ring, and a wire imbedding cavity is formed between the insulating ring and the conductor ring; the controller is arranged at the tail end of the telescopic loop rod and comprises a processing module, an operation module and a display module which are electrically connected with each other; the processing module is electrically connected with the induction head and is used for sensing whether a wire is electrified or not and detecting the current of the wire through the conductor ring. Whether the lead is electrified or not can be detected by arranging the induction head with the NCV induction device; the low-voltage overhead line can be detected through the telescopic loop bar, so that the climbing of the low-voltage pole is not required; the current of the wire can be detected through the hanging lugs, and wire stripping is not needed; meanwhile, after the pulley is hung on the lead through the slide fastener, the pulley slides along the trend of the lead, so that the detection efficiency is improved, and the problem that the failure detection efficiency of the conventional electroscope is low is effectively solved.
Drawings
In order to more clearly illustrate the embodiments of the present application 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 below, it being obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings may be obtained according to these drawings without inventive faculty for a person skilled in the art.
Fig. 1 is a schematic diagram of a telescopic induction electroscope provided in an embodiment of the present application in an extended state;
fig. 2 is a perspective view of a telescopic induction electroscope according to an embodiment of the present application in an extended state;
FIG. 3 is an enlarged view of portion A of FIG. 2 provided in an embodiment of the present application;
fig. 4 is a perspective view of a telescopic induction electroscope according to an embodiment of the present application in a compressed state;
in the figure: 1. a slide fastener; 11. a pulley; 2. hanging lugs; 21. a conductor ring; 22. an insulating ring; 23. placing a lead into the cavity; 3. an induction head; 4. a telescopic loop bar; 41. a telescopic loop bar; 411. locking threads; 412. a threaded knob; 413. a push-type buckle connection structure; 42. a searchlight; 43. a telescopic stay bar; 44. a spring; 5. a controller; 51. an operation module; 52. a display module; 53. a signal module; 531. a sound generator; 532. an indicator light.
Detailed Description
The following description of the embodiments of the present application will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are some, but not all, of the embodiments of the present application. All other embodiments, which can be made by one of ordinary skill in the art without undue burden from the embodiments of the present application, are within the scope of the claimed invention.
In the description of the embodiments of the present application, it should be noted that, directions or positional relationships indicated by terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., are based on directions or positional relationships shown in the drawings, are merely for convenience of describing the embodiments of the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific direction, be configured and operated in the specific direction, and thus should not be construed as limiting the embodiments of the present application. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the embodiments of the present application, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, interchangeably connected, integrally connected, mechanically connected, electrically connected, directly connected, indirectly connected through an intermediary, or in communication between two elements. The specific meaning of the terms in the embodiments of the present application will be understood by those of ordinary skill in the art in a specific context.
Referring to fig. 1 to 4, a telescopic induction electroscope provided in an embodiment of the present application includes: the device comprises a slide fastener 1, a hanging lug 2, a sensing head 3, a telescopic loop bar 4 and a controller 5.
The telescopic sleeve rod 4 is formed by mutually sleeving a plurality of telescopic sleeve rods 41; the mating ends of adjacent telescoping poles 41 are provided with locking threads 411 and threaded knobs 412. The length of the whole telescopic induction electroscope can be adjusted according to actual needs through the telescopic loop bar 4, so that staff does not need to climb an electric pole when detecting a low-voltage overhead conductor; meanwhile, by providing the locking screw 411 and the screw knob 412, the screw knob 412 can be rotated to be fixed after the extension of the telescopic rod 41. And, the outside of the screw knob 412 can be provided with a rain cover, so that water drops and dust can be prevented from entering the telescopic sleeve rod 4.
The inductive head 3 is arranged at the head end of the telescopic loop bar 4, and an NCV inductive device is arranged inside the inductive head 3. Specifically, the NCV induction device can induce whether a current passes through a wire without peeling the insulating sheath of the wire by using the electromagnetic induction principle.
The slider 1 is arranged on the induction head 3, and a pulley 11 is arranged inside the slider. The pulley 11 can be hung on the wire, so that a worker can conveniently drive the induction head 3 to move along the wire, and the investigation efficiency is improved.
The hanger 2 comprises a conductor ring 21 and an insulating ring 22; the conductor ring 21 has elasticity, one end is connected with the induction head 3, and the other end is connected with the insulating ring 22; the insulating ring 22 is attached to the induction head 3 by the elastic force of the conductor ring 21, and a wire insertion cavity 23 is formed between the insulating ring and the conductor ring 21. Specifically, the conductor ring 21 is used for contacting with a wire and attaching to the induction head, the conductor ring 21 surrounds the wire and is used for forming a closed loop with the wire, the current forms a closed loop, and then the current is measured. Further, by providing the insulating ring 22 at the other end of the conductor ring 21, the wire can be prevented from forming a loop current, which may affect the measurement accuracy. Simultaneously, possess elastic conductor ring 21 and make insulating ring 22 can receive elasticity laminating inductive head 3 to the wire is gone into the wire and is put into cavity 23 promotion can be crowded open insulating ring 22 and enter into the wire and put into the cavity 23 inside, makes the wire hug closely after the inductive head 3 end wall when taking out the wire, upwards mentions both can make the wire break away from, and whole operation is convenient for the staff to deal with overhead conductor, improves detection efficiency.
The controller 5 is disposed at the tail end of the telescopic loop rod 4, and comprises a processing module (not shown), an operation module 51 and a display module 52 which are electrically connected with each other; the processing module is electrically connected to the induction head 3 for sensing whether the wire is charged or not and for detecting the current of the wire through the conductor loop 21.
Specifically, the detected wire current may be displayed by the display module 52. The operation module 51 may include a plurality of operation buttons such as a power switch, an acousto-optic test, a sensing head lamp, a tail lamp, and the like.
The telescopic induction electroscope is internally provided with a battery module which is used for supplying power to the controller 5 and is provided with a charging connector of a corresponding Type-c interface; the power switch is used for controlling the opening and closing of the whole circuit.
The controller 5 further comprises a signal module 53; the signal module 53 is electrically connected with the processing module and is used for sending out an alarm signal when the wire is electrified; the alarm signal comprises an acoustic signal and an optical signal; the acoustic signal may be a speech signal; the light signals may include different colors of light representing different signal levels; the signal module 53 comprises a sounder 531 and an indicator 532, wherein the sounder 531 can send out a sound message of' danger when the pulley 11 senses current, and timely inform the staff; the indicator 532 may include a red light and a green light, where the green light is normally on when no current is applied to the wire, the red light is normally on when the wire is detected to be electrified, and the red light begins to flash at a set interval, such as 0.5s, when the battery module has insufficient power; the audible and visual test button may be used to detect whether the sounder 531 and indicator lights 532 are available.
The induction head 3 can adopt a PC transparent material outer sheath, and a spotlight is arranged in the induction head, so that the induction head is convenient for workers to use at night; the induction headlight button is used for switching on and off the spotlight.
The tail end of the telescopic loop bar 4 is provided with a searchlight 42; the tail light button is used to turn the searchlight 42 on and off.
Further, referring to fig. 2, a telescopic stay 43 for supporting is provided inside the telescopic loop bar 4; the two ends of the telescopic stay bar 43 are respectively connected with the two ends of the telescopic loop bar 4. A spring 44 is wound on the telescopic stay bar 43; the two ends of the spring 44 are respectively connected with the two ends of the telescopic stay bar 4.
Specifically, the spring 44 may be a compound spring. The telescopic stay 43 may be an inelastic member having a telescopic function for fixing the wire and the spring 44 and limiting the ejection length of the spring 44.
Further, the connecting end of the adjacent telescopic loop bar 41 is provided with a push-type snap connection structure 413.
The spring 44 is wound on the telescopic supporting rod 43, can be quickly ejected when the telescopic sleeve rod 4 is stretched, and enables the adjacent telescopic sleeve rods 41 to be mutually clamped and fixed through the pressing type buckle connecting structure 411.
Specifically, referring to fig. 4, the telescopic induction electroscope is shown in a compressed state, in which the push-type buckle connection structure 413 is pressed down, so that the pushing force of the electroscope hand spring 44 can be automatically ejected to the next length level, and in an extended state, the push-type induction electroscope cannot be continuously ejected due to the locking effect of the push-type buckle connection structure 413, so that reliability is ensured.
Further, the processing module is connected with the induction head 3 through an electric wire; the electric wire is wound in the same rotation direction as the spring 44 and is attached to the spring 44, so that the electric wire is prevented from being damaged due to the fact that the electric wire is extruded when the telescopic sleeve rod 4 stretches.
The telescopic induction electroscope provided by the embodiment adopts the induction head, so that the insulation skin of the wire is not required to be split for electroscope, and the wire is more convenient and high; the signal setting module 53 can timely inform the staff, and meanwhile, the sounder 531 and the indicator lamp 532 are arranged at the tail end of the hand of the staff, so that whether the lead is electrified can be observed more clearly; because the traditional electroscope is harsh in night use conditions, a special person is usually required to lift the lamp source for irradiation, and the places cannot be searched according to the own will of the person as soon as possible, the spotlight and the searchlight 42 are added, and the night use is more convenient; through telescopic flexible loop bar 4, but direct contact wire tests the electricity, when labour saving and time saving, avoided the staff to climb the pole, ensured personal safety effectively.
While the present invention has been described in detail with reference to the examples, it will be apparent to those skilled in the art that the foregoing examples can be modified or equivalents substituted for some of the features thereof, and any modifications, equivalents, improvements and substitutions made therein are intended to be within the spirit and principles of the present invention.
Claims (9)
1. A telescopic induction electroscope, comprising: slide fastener, hanging ear, induction head, telescopic loop bar and controller;
the telescopic loop bar is formed by mutually sleeving a plurality of telescopic loop bars;
the connecting end of the adjacent telescopic loop bars is provided with locking threads and a threaded knob;
the induction head is arranged at the head end of the telescopic loop rod, and an NCV induction device is arranged in the induction head;
the slide fastener is arranged on the induction head, and a pulley is arranged in the slide fastener;
the hanging lugs comprise conductor rings and insulating rings;
the conductor ring has elasticity, one end of the conductor ring is connected with the induction head, and the other end of the conductor ring is connected with the insulating ring;
the conductor ring surrounds the wire and is used for forming a closed loop with the wire so as to enable the current to form a closed loop, and then the current is measured;
the insulating ring is arranged on the inner side of the conductor ring, is attached to the induction head by the elasticity of the conductor ring, and forms a lead imbedding cavity with the conductor ring;
when the wire enters the wire placing cavity, the wire pushes the insulating ring to be extruded out of the wire placing cavity so as to enter the wire placing cavity;
when the lead is separated from the lead placement cavity, the lead is lifted upwards after being attached to the end wall of the induction head, so that the lead is separated from the lead placement cavity;
the controller is arranged at the tail end of the telescopic loop rod and comprises a processing module, an operation module and a display module which are electrically connected with each other;
the processing module is electrically connected with the induction head and is used for sensing whether a wire is electrified or not and detecting the current of the wire through the conductor ring.
2. The telescopic induction electroscope according to claim 1, wherein a telescopic stay rod for supporting is arranged inside the telescopic loop rod;
the telescopic stay bar is arranged in a telescopic way, and two ends of the telescopic stay bar are respectively connected with two ends of the telescopic loop bar.
3. The telescopic induction electroscope of claim 2, wherein the telescopic support rod is wound with a spring;
and two ends of the spring are respectively connected with two ends of the telescopic stay bar.
4. A telescopic induction electroscope according to claim 3, wherein the processing module is connected to the induction head by means of wires;
the wire and the spring are wound in the same rotation direction and are attached to the spring.
5. The telescopic induction electroscope of claim 1, wherein the interfacing ends of adjacent said sub telescopic loop bars are provided with push-on snap connection structures.
6. The telescopic induction electroscope of claim 1, wherein the controller further comprises a signal module;
the signal module is electrically connected with the processing module and is used for sending out an alarm signal when the lead is electrified.
7. The telescopic induction electroscope of claim 6, wherein the alarm signal comprises an acoustic signal and an optical signal;
the signal module comprises a sounder and an indicator lamp.
8. The telescopic induction electroscope of claim 1, wherein the tail end of the telescopic loop bar is provided with a searchlight.
9. The telescopic induction electroscope of claim 1, wherein the outer shell of the induction head is made of transparent material, and a spotlight electrically connected with the controller is arranged inside the induction head.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111136997.XA CN113866489B (en) | 2021-09-27 | 2021-09-27 | Telescopic induction electroscope |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111136997.XA CN113866489B (en) | 2021-09-27 | 2021-09-27 | Telescopic induction electroscope |
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| CN113866489A CN113866489A (en) | 2021-12-31 |
| CN113866489B true CN113866489B (en) | 2023-06-02 |
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| CN202111136997.XA Active CN113866489B (en) | 2021-09-27 | 2021-09-27 | Telescopic induction electroscope |
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Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002214254A (en) * | 2001-01-22 | 2002-07-31 | Kyuki:Kk | Arrester type power transmission/distribution line current/voltage measuring apparatus and power transmission/distribution line current/voltage measuring system using the same |
| JP2008256534A (en) * | 2007-04-05 | 2008-10-23 | Chugoku Electric Power Co Inc:The | Extendable electroscope |
| CN101834416A (en) * | 2010-05-21 | 2010-09-15 | 安徽省电力公司滁州供电公司 | Device and construction method for live repairing of strand-broken overhead earth wire of transmission line |
| JP2011122939A (en) * | 2009-12-10 | 2011-06-23 | Kagoshima Univ | Wireless sensor node and overhead wire monitoring system |
| JP2012088224A (en) * | 2010-10-21 | 2012-05-10 | Hioki Ee Corp | Rogowski coil and current detection device |
| CN103280734A (en) * | 2013-05-31 | 2013-09-04 | 国家电网公司 | High-voltage brake pull-rod capable of measuring temperature and load current |
| CN104391157A (en) * | 2014-11-25 | 2015-03-04 | 贵州电力试验研究院 | Strut type all-fiber current transformer with novel armor clamp |
| CN105259389A (en) * | 2015-10-23 | 2016-01-20 | 国网山东省电力公司东营供电公司 | Electricity stealing prevention intelligent monitoring apparatus and method |
| CN207689558U (en) * | 2017-11-21 | 2018-08-03 | 国网浙江省电力公司湖州供电公司 | One kind being suitable for remote operated current measuring device |
| CN209746064U (en) * | 2019-02-26 | 2019-12-06 | 国网湖北省电力有限公司武汉供电公司 | Wireless detection device for high-voltage cable |
| CN111308165A (en) * | 2020-04-09 | 2020-06-19 | 国网河北省电力有限公司无极县供电分公司 | Electricity testing operation rod |
| CN210982649U (en) * | 2019-01-01 | 2020-07-10 | 仇培玉 | Distribution lines fault locating device |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4089976B2 (en) * | 2004-05-17 | 2008-05-28 | リーノ アイエヌディー．インコーポレイテッド | High current probe |
-
2021
- 2021-09-27 CN CN202111136997.XA patent/CN113866489B/en active Active
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002214254A (en) * | 2001-01-22 | 2002-07-31 | Kyuki:Kk | Arrester type power transmission/distribution line current/voltage measuring apparatus and power transmission/distribution line current/voltage measuring system using the same |
| JP2008256534A (en) * | 2007-04-05 | 2008-10-23 | Chugoku Electric Power Co Inc:The | Extendable electroscope |
| JP2011122939A (en) * | 2009-12-10 | 2011-06-23 | Kagoshima Univ | Wireless sensor node and overhead wire monitoring system |
| CN101834416A (en) * | 2010-05-21 | 2010-09-15 | 安徽省电力公司滁州供电公司 | Device and construction method for live repairing of strand-broken overhead earth wire of transmission line |
| JP2012088224A (en) * | 2010-10-21 | 2012-05-10 | Hioki Ee Corp | Rogowski coil and current detection device |
| CN103280734A (en) * | 2013-05-31 | 2013-09-04 | 国家电网公司 | High-voltage brake pull-rod capable of measuring temperature and load current |
| CN104391157A (en) * | 2014-11-25 | 2015-03-04 | 贵州电力试验研究院 | Strut type all-fiber current transformer with novel armor clamp |
| CN105259389A (en) * | 2015-10-23 | 2016-01-20 | 国网山东省电力公司东营供电公司 | Electricity stealing prevention intelligent monitoring apparatus and method |
| CN207689558U (en) * | 2017-11-21 | 2018-08-03 | 国网浙江省电力公司湖州供电公司 | One kind being suitable for remote operated current measuring device |
| CN210982649U (en) * | 2019-01-01 | 2020-07-10 | 仇培玉 | Distribution lines fault locating device |
| CN209746064U (en) * | 2019-02-26 | 2019-12-06 | 国网湖北省电力有限公司武汉供电公司 | Wireless detection device for high-voltage cable |
| CN111308165A (en) * | 2020-04-09 | 2020-06-19 | 国网河北省电力有限公司无极县供电分公司 | Electricity testing operation rod |
Non-Patent Citations (1)
| Title |
|---|
| 高压电缆金属护套环流超标分析及处理;王年孝;企业技术开发;第34卷(第11期);第82-84页 * |
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