CN113325222A - Telescopic insulating operating rod with electroscope - Google Patents
Telescopic insulating operating rod with electroscope Download PDFInfo
- Publication number
- CN113325222A CN113325222A CN202110593031.2A CN202110593031A CN113325222A CN 113325222 A CN113325222 A CN 113325222A CN 202110593031 A CN202110593031 A CN 202110593031A CN 113325222 A CN113325222 A CN 113325222A
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- rod
- electroscope
- limiting
- matched
- 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
- G01R19/15—Indicating the presence of current
-
- 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
- G01R19/155—Indicating the presence of voltage
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B17/00—Insulators or insulating bodies characterised by their form
- H01B17/56—Insulating bodies
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G1/00—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines
- H02G1/02—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines for overhead lines or cables
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Endoscopes (AREA)
Abstract
The invention discloses a telescopic insulating operating rod with an electroscope, which comprises a telescopic unit, a limiting unit, an electricity testing unit and a handle, wherein the telescopic unit is used for increasing the length of a rod piece, the limiting unit is used for limiting a centering rod and an inner rod, the electricity testing unit is used for checking the current and voltage conditions of a circuit, and the handle is wrapped by an insulating material, so that the telescopic insulating operating rod is convenient for a user to take and is safer. The device provided by the invention does not need to be spliced when in use, can be stretched through the stretching unit, is convenient to carry and use, improves the safety of operators, and effectively avoids misoperation events.
Description
Technical Field
The invention relates to the technical field of insulating operating rods, in particular to a telescopic insulating operating rod with an electroscope.
Background
Along with join in marriage the net and erect the constantly increasing of circuit with the pole, join in marriage net operation and frequent day by day, the risk of maloperation is also more and more high, and the insulating bar that uses at present is mostly the concatenation formula, and inconvenient carrying and use dismantle to a great extent before the use and reduce operating efficiency.
Disclosure of Invention
This section is for the purpose of summarizing some aspects of embodiments of the invention and to briefly introduce some preferred embodiments. In this section, as well as in the abstract and the title of the invention of this application, simplifications or omissions may be made to avoid obscuring the purpose of the section, the abstract and the title, and such simplifications or omissions are not intended to limit the scope of the invention.
The present invention has been made in view of the above and/or other problems occurring in the prior art insulated operating rod.
Therefore, the problem to be solved by the invention is how to provide a telescopic insulating operating rod with an electroscope.
In order to solve the technical problems, the invention provides the following technical scheme: a telescopic insulating operating rod with an electroscope comprises a telescopic unit, a telescopic unit and a connecting unit, wherein the telescopic unit comprises an outer rod, a middle rod arranged in the outer rod, an inner rod arranged in the middle rod and a connecting component arranged on the inner rod and matched with the middle rod, the connecting component comprises a bearing plate fixed at the bottom of the inner rod, a connecting piece arranged below the bearing plate, a spring connecting the bearing plate and the connecting piece, and a clamping block matched with the connecting piece, a clamping hole matched with the clamping block is formed in the top of the middle rod, a push-pull cylinder used for pushing and pulling the connecting piece is arranged on the outer rod, a push-pull bulge is arranged at the top end of the push-pull cylinder, a push-pull hole for the push-pull cylinder to pass through is formed in the connecting piece, and a resistance ring matched with the push-pull bulge is arranged in the push-pull hole; the limiting unit is arranged on the outer rod and comprises a first limiting part in threaded connection with the outer rod, a second limiting part in rotating fit with the first limiting part and a third limiting part which is arranged on the first limiting part and is matched with the second limiting part; and the electroscope unit comprises a conductive component arranged in the telescopic unit and an electroscope arranged on the outer rod and connected with the conductive component.
As a preferable aspect of the telescopic insulating operating rod with an electroscope of the present invention, wherein: the upper port of the first limiting part is provided with a plurality of first grooves, and the third limiting part is arranged in the first grooves and is in rotating fit with two side faces of the first grooves through a rotating shaft.
As a preferable aspect of the telescopic insulating operating rod with an electroscope of the present invention, wherein: the third locating part comprises a gear and a limiting block used for clamping the middle rod or the inner rod, and the second locating part is provided with threads matched with the gear.
As a preferable aspect of the telescopic insulating operating rod with an electroscope of the present invention, wherein: the contact surface of the limiting block and the middle rod or the inner rod is an arc surface.
As a preferable aspect of the telescopic insulating operating rod with an electroscope of the present invention, wherein: the inner rod is characterized in that second grooves are symmetrically formed in the outer side face of the inner rod, second clamping strips matched with the second grooves are arranged on the inner side face of the middle rod, third grooves are symmetrically formed in the outer side face of the middle rod, and third clamping strips matched with the third grooves are arranged on the inner side face of the outer rod.
As a preferable aspect of the telescopic insulating operating rod with an electroscope of the present invention, wherein: the utility model discloses a pole, including interior pole top, test electricity chuck, conductive component, fixture block, clamping block, outer pole, the pole top is provided with test electricity chuck, test electricity chuck includes electric current gauge head and voltage gauge head, conductive component includes second wire, first conductor rail and second conductor rail, two the second wire respectively with electric current gauge head and voltage gauge head are connected, two the other end of second wire respectively with two the fixture block is connected, the fixture block adopts conducting material, first conductor rail set up in on the king-rod and with fixture block direct contact, second conductor rail set up in on the outer pole and with first conductor rail bottom direct contact, electroscope with the second conductor rail bottom is connected.
As a preferable aspect of the telescopic insulating operating rod with an electroscope of the present invention, wherein: the top end of the first conductive rail is provided with a first overlapping portion fixed on the clamping hole, and the bottom end of the first conductive rail is provided with a second overlapping portion penetrating through the middle rod and contacting with the second conductive rail.
As a preferable aspect of the telescopic insulating operating rod with an electroscope of the present invention, wherein: the bottom end of the middle rod is provided with a first limiting table with the same inner diameter as the outer rod, the second overlapping portion penetrates through the limiting table to be in contact with the second conductive rail, the bottom end of the inner rod is provided with a second limiting table with the same inner diameter as the middle rod, and the top end of the middle rod is provided with a telescopic hole with the same outer diameter as the inner rod.
As a preferable aspect of the telescopic insulating operating rod with an electroscope of the present invention, wherein: the connecting piece comprises a pushing block and a polymerization block, wherein the pushing block is connected with the spring, the polymerization block is matched with the clamping block, two surfaces of the joint of the pushing block and the clamping block are mutually matched inclined surfaces, and two surfaces of the joint of the polymerization block and the clamping block are mutually matched inclined surfaces.
As a preferable aspect of the telescopic insulating operating rod with an electroscope of the present invention, wherein: the handle is in threaded connection with the bottom end of the outer rod.
The telescopic device has the advantages that the device does not need to be spliced when in use, can be telescopic through the telescopic unit, is convenient to carry and use, improves the safety of operators, and effectively avoids misoperation events.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise. Wherein:
fig. 1 is a structural view of a telescopic insulating operating rod with an electroscope in example 1.
Fig. 2 is a cross-sectional view of the telescopic insulated operating rod with an electroscope of example 1.
Fig. 3 is a detailed view of part a of fig. 2 of the electroscope equipped telescopic insulating operating rod of example 1.
Fig. 4 is a detailed view of part B of fig. 2 of the telescopic insulating operating rod with an electroscope of example 1.
Fig. 5 is an exploded view of a stopper unit of the telescopic insulating operating rod with an electroscope in example 1.
Fig. 6 is an exploded view of a telescoping unit of the telescopic insulated operating rod with an electroscope of example 1.
Figure 7 is a block diagram of an electroscope cartridge with an electroscope telescoping insulated operating rod of example 1.
Fig. 8 is a schematic view of an electroscopic unit of the telescopic insulated operating rod with an electroscope in example 1.
FIG. 9 is an exploded view of the joint assembly of the telescopic dielectric operating rod with electroscope of example 1.
FIG. 10 is a schematic view of a resistance ring of the telescopic insulated operating rod with electroscope of example 1.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, but the present invention may be practiced in other ways than those specifically described and will be readily apparent to those of ordinary skill in the art without departing from the spirit of the present invention, and therefore the present invention is not limited to the specific embodiments disclosed below.
Furthermore, reference herein to "one embodiment" or "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one implementation of the invention. The appearances of the phrase "in one embodiment" in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments.
Example 1
Referring to fig. 1 to 10, for a first embodiment of the present invention, the embodiment provides a telescopic insulating operating rod with an electroscope, the telescopic insulating operating rod with an electroscope includes a telescopic unit 100, a limiting unit 400, an electroscope unit 500 and a grip 600, the telescopic unit 100 is used for increasing the length of a rod, the limiting unit 400 is used for limiting a centering rod 102 and an inner rod 103, the electroscope unit 500 is used for line inspection of current and voltage conditions, and the grip 600 is externally wrapped by an insulating material, so that a user can take the grip conveniently and the grip is safer.
Specifically, the telescopic unit 100 comprises an outer rod 101, a middle rod 102 arranged in the outer rod 101, an inner rod 103 arranged in the middle rod 102, and a joint assembly 104 arranged on the inner rod 103 and matched with the middle rod 102, wherein the joint assembly 104 comprises a bearing plate 104a fixed at the bottom of the inner rod 103, a connecting member 104b arranged below the bearing plate 104a, a spring 104c connecting the bearing plate 104a and the connecting member 104b, and a fixture block 104d matched with the connecting member 104b, the top of the middle rod 102 is provided with a fixture hole 102f matched with the fixture block 104d, the outer rod 101 is provided with a push-pull cylinder 101f for pushing and pulling the connecting member 104b, the top end of the push-pull cylinder 101f is provided with a push-pull projection 101f-1, the connecting member 104b is provided with a push-pull hole 104b-5 for the push-pull cylinder 101f to pass through, and a resistance ring 104b-51 matched with the push-pull protrusion 101f-1 is arranged in the push-pull hole 104 b-5.
The limiting unit 400 is disposed on the outer rod 101, and includes a first limiting member 401 connected to the outer rod 101 by a screw, a second limiting member 402 rotatably engaged with the first limiting member 401, and a third limiting member 403 disposed on the first limiting member 401 and engaged with the second limiting member 402.
The grip 600 is connected with the bottom end of the outer rod 101 in a threaded manner.
Further, a plurality of first grooves 401a are disposed at an upper port of the first limiting member 401, and the third limiting member 403 is disposed in the first grooves 401a and is rotatably engaged with two side surfaces of the first grooves 401a through a rotating shaft. The third limiting member 403 includes a gear 403a and a limiting block 403b for clamping the middle rod 102 or the inner rod 103, the second limiting member 402 is provided with a thread 402a matched with the gear 403a, preferably, a contact surface between the limiting block 403b and the middle rod 102 or the inner rod 103 is an arc surface, and preferably, a rubber pad is provided on the arc surface of the limiting block 403b for better clamping the middle rod 102 and the inner rod 103.
Further, a second groove 103a is symmetrically formed in the outer side surface of the inner rod 103, a second clamping strip 102a matched with the second groove 103a is arranged on the inner side surface of the middle rod 102, a third groove 102b is symmetrically formed in the outer side surface of the middle rod 102, a third clamping strip 101a matched with the third groove 102b is arranged on the inner side surface of the outer rod 101, and the second clamping strip 102a and the second groove 103a are arranged to prevent the middle rod 102 and the inner rod 103 from rotating relative to each other, so that a clamping block 104d cannot be matched with a clamping hole 102f, and contact between the clamping block 104d and the first conductive rail 501b is also guaranteed. The third groove 102b and the third clamping bar 101a are arranged on one hand for preventing the middle rod 102 and the outer rod 101 from rotating relatively, so that the second conductive rail 501c and the first conductive rail 501b cannot be matched
Preferably, the top end of the inner rod 103 is provided with an electricity testing chuck 103b, the electricity testing chuck 103b comprises a current measuring head 103b-1 and a voltage measuring head 103b-2, the conductive assembly 501 comprises a second wire 501a, a first conductive rail 501b and a second conductive rail 501c, the two second wires 501a are respectively connected with the current measuring head 103b-1 and the voltage measuring head 103b-2, the other ends of the two second wires 501a are respectively connected with the two clamping blocks 104d, the clamping blocks 104d are made of a conductive material, the first conductive rail 501b is arranged on the middle rod 102 and is in direct contact with the clamping blocks 104d, the second conductive rail 501c is arranged on the outer rod 101 and is in direct contact with the bottom end of the first conductive rail 501b, and the electricity testing device 502 is connected with the bottom end of the second conductive rail 501 c.
Preferably, the top end of the first conductive rail 501b is provided with a first overlapping portion 501b-1 fixed on the engaging hole 102f, and the bottom end is provided with a second overlapping portion 501b-2 penetrating through the middle rod 102 and contacting with the second conductive rail 501 c.
Further, a first limiting table 102d with the same inner diameter as the outer rod 101 is arranged at the bottom end of the middle rod 102, the second overlapping portion 501b-2 penetrates through the limiting table 102b to be in contact with the second conductive rail 501c, a second limiting table 103c with the same inner diameter as the middle rod 102 is arranged at the bottom end of the inner rod 103, and a telescopic hole 102c with the same outer diameter as the inner rod 103 is arranged at the top end of the middle rod 102.
Further, the connecting member 104b includes a pushing block 104b-1 connected to the spring 104c and a converging block 104b-2 engaged with the clamping block 104d, two surfaces of a joint of the pushing block 104b-1 and the clamping block 104d are mutually engaged inclined surfaces M, and two surfaces of a joint of the converging block 104b-2 and the clamping block 104d are mutually engaged inclined surfaces N.
The installation steps of the device of the invention are as follows: electricity test chuck 103b does not install earlier on interior pole 103, and interior pole 103 injects from well pole 102 bottom, then inserts well pole 102 from outer pole 101 upper end, then screws up first locating part 401 on outer pole 101, then installs handle 600, and it can to install electricity test chuck 103b at last again.
It should be noted that, when the inner rod 103 is in a contracted state, that is, the inner rod 103 is retracted into the middle rod 102, and the middle rod 102 is retracted into the outer rod 101, the push-pull cylinder 101f passes through the connecting member 104b, when the inner rod 103 is brought out, the push-pull protrusion 101f-1 of the push-pull cylinder 101f and the resistance ring 104b-51 of the connecting member 104b gradually approach, the connecting member 104b drives the latch 104d to have a tendency to extend all the time, until the latch 104d is opposite to the latching hole 102f, the latch 104d extends into the latching hole 102f, at this time, the push-pull protrusion 101f-1 and the resistance ring 104b-51 also just contact, which can further make the latch 104d have a tendency to extend outward, then the push-pull protrusion 101f-1 and the resistance ring 104b-51 are separated, the middle rod 102 and the inner rod 103 are fixed, and when the middle rod 102 and the inner rod 103 are retracted, the middle rod 102 is retracted into the outer rod 101 first, until the push-pull protrusion 101f-1 contacts with the resistance ring 104b-51, the fixture block 104d tends to converge under the action of the resistance, the middle rod 102 continues to retract until the maximum value, at this time, the fixture block 104d is separated from the fixture hole 102f, the inner rod 103 continues to retract, because the middle rod 102 cannot move, the push-pull protrusion 101f-1 penetrates through the resistance ring 104b-51 under the action of pressure, the fixture block 104d is pressed on the first conductive rail 501b under the action of the spring 104c, and then the inner rod 103 continues to retract to the maximum value. It should be noted that the third limiting member 403 in the limiting unit 400 is not only used for limiting the middle rod 102 and the inner rod 103 after extending out, but also used for limiting the end of the middle rod 102 when the inner rod 103 is located, that is, only the inner rod 103 can extend out at this time, and the middle rod 102 is blocked by the third limiting member 403.
When the electric pole is used, the second limiting part 402 is rotated firstly, so that the limiting block 403b of the third limiting part 403 is separated from the side face of the inner pole 103, then the inner pole 103 is pulled until the inner pole 103 reaches the maximum distance, at the moment, the clamping block 104d and the clamping hole 102f are just clamped, then the second limiting part 402 is rotated, so that the limiting block 403b cannot block the middle pole 102, then the middle pole 102 is pulled out, after the middle pole is pulled to a certain length, the second limiting part 402 is rotated, the middle pole 102 is limited through the third limiting part 403, and then electricity testing can be carried out. It should be noted that, if the operating rod is not required to be too long, the third limiting member 403 may also limit the position of the inner rod 103, and after the insulating operating rod is used, the middle rod 102 and the inner rod 103 are retracted, and then the second limiting member 402 is rotated, so that the third limiting member 403 fixes the inner rod 103.
It should be noted that the above-mentioned embodiments are only for illustrating the technical solutions of the present invention and not for limiting, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions may be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, which should be covered by the claims of the present invention.
Claims (10)
1. The utility model provides a take telescopic insulating bar of electroscope which characterized in that: comprises the steps of (a) preparing a mixture of a plurality of raw materials,
the telescopic unit (100) comprises an outer rod (101), a middle rod (102) arranged in the outer rod (101), an inner rod (103) arranged in the middle rod (102), and a joint component (104) arranged on the inner rod (103) and matched with the middle rod (102), wherein the joint component (104) comprises a bearing plate (104a) fixed at the bottom of the inner rod (103), a connecting piece (104b) arranged below the bearing plate (104a), a spring (104c) connecting the bearing plate (104a) and the connecting piece (104b), and a clamping block (104d) matched with the connecting piece (104b), a clamping hole (102f) matched with the clamping block (104d) is formed in the top of the middle rod (102), and a push-pull cylinder (101f) used for pushing and pulling the connecting piece (104b) is arranged on the outer rod (101), a push-pull protrusion (101f-1) is arranged at the top end of the push-pull cylinder (101f), a push-pull hole (104b-5) for the push-pull cylinder (101f) to pass through is formed in the connecting piece (104b), and a resistance ring (104b-51) matched with the push-pull protrusion (101f-1) is arranged in the push-pull hole (104 b-5);
the limiting unit (400) is arranged on the outer rod (101) and comprises a first limiting part (401) in threaded connection with the outer rod (101), a second limiting part (402) in rotating fit with the first limiting part (401), and a third limiting part (403) which is arranged on the first limiting part (401) and is in fit with the second limiting part (402); and the number of the first and second groups,
the electroscope unit (500) comprises a conductive component (501) arranged in the telescopic unit (100) and an electroscope (502) arranged on the outer rod (101) and connected with the conductive component (501).
2. The telescopic insulating operating rod with electroscope of claim 1, characterized in that: the upper port of the first limiting part (401) is provided with a plurality of first grooves (401a), and the third limiting part (403) is arranged in the first grooves (401a) and is rotatably matched with two side surfaces of the first grooves (401a) through a rotating shaft.
3. The telescopic insulating operating rod with electroscope of claim 1 or 2, characterized in that: the third limiting part (403) comprises a gear (403a) and a limiting block (403b) used for clamping the middle rod (102) or the inner rod (103), and the second limiting part (402) is provided with a thread (402a) matched with the gear (403 a).
4. The telescopic insulating operating rod with electroscope of claim 3, characterized in that: the contact surface of the limiting block (403b) and the middle rod (102) or the inner rod (103) is an arc surface.
5. The telescopic insulating operating rod with electroscope of any one of claims 1, 2 or 4, characterized in that: the outer side surface of the inner rod (103) is symmetrically provided with second grooves (103a), the inner side surface of the middle rod (102) is provided with second clamping strips (102a) matched with the second grooves (103a), the outer side surface is symmetrically provided with third grooves (102b), and the inner side surface of the outer rod (101) is provided with third clamping strips (101a) matched with the third grooves (102 b).
6. The telescopic insulating operating rod with electroscope of claim 5, characterized in that: the top end of the inner rod (103) is provided with an electricity testing chuck (103b), the electricity testing chuck (103b) comprises a current measuring head (103b-1) and a voltage measuring head (103b-2), the conductive assembly (501) comprises a second wire (501a), a first conductive rail (501b) and a second conductive rail (501c), the two second wires (501a) are respectively connected with the current measuring head (103b-1) and the voltage measuring head (103b-2), the other ends of the two second wires (501a) are respectively connected with two clamping blocks (104d), the clamping blocks (104d) are made of conductive materials, the first conductive rail (501b) is arranged on the middle rod (102) and is in direct contact with the clamping blocks (104d), the second conductive rail (501c) is arranged on the outer rod (101) and is in direct contact with the bottom end of the first conductive rail (501b), the electroscope (502) is connected with the bottom end of the second conductive rail (501 c).
7. The telescopic insulating operating rod with electroscope of claim 6, characterized in that: the top end of the first conductive rail (501b) is provided with a first overlapping part (501b-1) fixed on the clamping hole (102f), and the bottom end of the first conductive rail (501b) is provided with a second overlapping part (501b-2) penetrating through the middle rod (102) and contacting with the second conductive rail (501 c).
8. The telescopic insulating operating rod with electroscope of claim 7, characterized in that: the bottom end of the middle rod (102) is provided with a first limiting table (102d) with the same inner diameter as the outer rod (101), the second overlapping portion (501b-2) penetrates through the limiting table (102b) to be in contact with the second conductive rail (501c), the bottom end of the inner rod (103) is provided with a second limiting table (103c) with the same inner diameter as the middle rod (102), and the top end of the middle rod (102) is provided with a telescopic hole (102c) with the same outer diameter as the inner rod (103).
9. The telescopic insulating operating rod with electroscope of claim 7 or 8, characterized in that: the connecting piece (104b) comprises a pushing block (104b-1) connected with the spring (104c) and a converging block (104b-2) matched with the clamping block (104d), two surfaces of the joint of the pushing block (104b-1) and the clamping block (104d) are mutually matched inclined surfaces (M), and two surfaces of the joint of the converging block (104b-2) and the clamping block (104d) are mutually matched inclined surfaces (N).
10. The telescopic insulating operating rod with electroscope of any one of claims 1, 2, 4, 6 or 7, characterized in that: the handle (600) is in threaded connection with the bottom end of the outer rod (101).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110593031.2A CN113325222B (en) | 2021-05-28 | 2021-05-28 | Telescopic insulating operating rod with electroscope |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110593031.2A CN113325222B (en) | 2021-05-28 | 2021-05-28 | Telescopic insulating operating rod with electroscope |
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| CN113325222A true CN113325222A (en) | 2021-08-31 |
| CN113325222B CN113325222B (en) | 2022-05-17 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114221244A (en) * | 2021-11-22 | 2022-03-22 | 华能河南中原燃气发电有限公司 | 500kV isolator deicing system convenient to use |
| WO2024011710A1 (en) * | 2022-07-15 | 2024-01-18 | 华能聊城热电有限公司 | Special auxiliary tool for measuring insulation resistance of high-voltage device |
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