CN111025105B - Ring main unit equipment sleeve withstand voltage test device - Google Patents
Ring main unit equipment sleeve withstand voltage test device Download PDFInfo
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- CN111025105B CN111025105B CN201911381414.2A CN201911381414A CN111025105B CN 111025105 B CN111025105 B CN 111025105B CN 201911381414 A CN201911381414 A CN 201911381414A CN 111025105 B CN111025105 B CN 111025105B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/12—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing
- G01R31/1227—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing of components, parts or materials
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Abstract
The invention discloses a withstand voltage test device for a sleeve of ring main unit equipment, which relates to the field of ring main units and comprises a test connecting pipe and a pressure sensor, wherein the test connecting pipe is provided with a through hole penetrating through the upper end surface and the lower end surface of the test connecting pipe; the fixing pieces are distributed on the edge of the bottom of the test connecting pipe, the bottom of each fixing piece is hinged with the edge of the bottom of the test connecting pipe, and a plug-in port is formed among the fixing pieces; the rotating body is sleeved on the test connecting pipe and is in threaded connection with the outer side surface of the test connecting pipe; the conducting rod, its one end is equipped with the screw thread end, the other end is equipped with the mounting groove, after the conducting rod passed the through hole, the screw thread end is located the grafting mouth, and make it intraductal with screw in equipment standard sleeve, make mounting groove and test power electric connection, and the drive rotor is close to the stationary blade direction, make the lower terminal surface of rotor and the lateral surface contact back of stationary blade, the drive stationary blade will be located the intraoral equipment standard sleeve of grafting fixed, make this device can adapt to the equipment standard sleeve pipe of different models, the application range has been enlarged.
Description
Technical Field
The invention relates to the field of ring main units, in particular to a withstand voltage test device for a sleeve of ring main unit equipment.
Background
At present, when a ring main unit with standard sleeves, a pre-installed substation and a cable branch box with standard sleeves of 35kV (inclusive) or below is subjected to pressure resistance in a factory or on site, a method for connecting cables and standard cable accessories or a method for applying a full-insulation device is mainly adopted for carrying out insulation test. The main problems with the two methods are: by adopting the method of the cable and the standard cable accessory, although the test process can be solved, the test cost is high, the requirement on the size of a test field is high, the requirement on the construction technicians of the cable is high, and the method is particularly obvious in a type test; although the method adopting the all-insulation device for testing is simple to install, the method only can meet the testing requirements of equipment of 10kV and below and can not meet the testing voltage requirements of 24kV and 35kV equipment, so that a reliable multipurpose testing device is needed.
The applicant found that: the Chinese patent application No. 201010274049.8 discloses a withstand voltage test device for a bushing of ring main unit equipment, which comprises a test joint, a conducting rod and a stress control unit; one end of the test joint is formed into a socket which can be matched and connected with the conical surface of the standard sleeve of the equipment, the other end of the test joint is provided with a stress control unit, and a supporting tube is arranged in the test joint; the conducting rod comprises conducting rod and fixed pin, the conducting rod passes experimental joint, one end processing is the standard screw thread that links to each other with the equipment sleeve pipe, the other end processing is the fixed orifices that the installation fixed pin was used, and leave the mounting hole that can be connected with experimental power, the device can effectively solve above-mentioned technical problem, nevertheless when using because the shape of the interface in this patent is fixed, different at equipment standard sleeve pipe model, its conical surface also can be different, cause when equipment standard sleeve pipe conical surface combines with the interface, can't effectively play fixed effect to equipment standard sleeve pipe.
Disclosure of Invention
In view of this, the present invention provides a ring main unit device casing pressure resistance test apparatus, so as to solve the technical problem that in the prior art, when the types of standard equipment casings are different, the conical surfaces of the standard equipment casings are also different because the shapes of the plug interfaces in patent 201010274049.8 are fixed, and the standard equipment casings cannot be effectively fixed when the conical surfaces of the standard equipment casings are combined with the plug interfaces.
Based on the above purpose, the invention provides a withstand voltage test device for a bushing of a ring main unit device, which comprises,
the test connecting pipe is internally provided with a through hole penetrating through the upper end surface and the lower end surface of the test connecting pipe;
the device comprises a plurality of fixing pieces distributed on the edge of the bottom of a test connecting pipe, wherein the bottom of each fixing piece is hinged with the edge of the bottom of the test connecting pipe, and a plug-in port matched with the conical surface of a standard sleeve of the equipment is formed among the plurality of fixing pieces;
the rotating body is sleeved on the test connecting pipe and is in threaded connection with the outer side surface of the test connecting pipe;
the conducting rod, its one end is equipped with the screw thread end, and the other end is equipped with the mounting groove after the conducting rod passes the through hole, the screw thread end is located the socket to make its screw in equipment standard cover intraductally, make mounting groove and test power electric connection to the drive rotor is close to the stationary blade direction, makes the lower terminal surface of rotor and the lateral surface contact back of stationary blade, and the drive stationary blade will be located the socket intraoral equipment standard cover pipe and fix.
The clamping plate is arranged on the periphery of the central axis of the through hole, a plurality of first springs are distributed on the side face of the clamping plate facing the inner side wall of the through hole, one end of each first spring is fixed on the inner side wall of the through hole, and the other end of each first spring is fixed on the side face of the clamping plate.
Furthermore, the clamping device comprises a supporting column, wherein the supporting column is in sliding connection with a supporting groove arranged on the clamping plate, and one end of the supporting column is fixed on the side wall of the through hole.
The movable block is provided with a plurality of sliding grooves, the movable block is provided with sliding holes penetrating through the upper end face and the lower end face of the movable block, bosses in one-to-one correspondence with the sliding grooves are arranged on the inner side faces of the sliding holes, the movable block is connected to the rotating body in a sleeved mode through the sliding holes, the bosses are connected with the sliding grooves in a sliding mode, the second permanent magnets are arranged in the clamping plates, and the first permanent magnets in one-to-one correspondence with the clamping plates are arranged on the inner side walls of the sliding holes.
The positioning device comprises a sliding hole, a first permanent magnet and a second permanent magnet, wherein the sliding hole is provided with a sliding hole, the sliding hole is provided with a positioning groove, the sliding hole is provided with a positioning hole, the sliding hole is provided with a positioning groove matched with the positioning block, the first permanent magnet is right opposite to one of the second permanent magnets when the positioning block is combined with the positioning groove, and attraction is generated between the first permanent magnet and the second permanent magnet.
Further comprises a rotating rod, a driving rod and a second spring, wherein the upper part of the conducting rod is provided with a driving groove which penetrates through the side surface of the conducting rod, the driving groove is positioned below the mounting groove, the rotating rod penetrates through the driving groove, the lower end of the rotating rod positioned at the driving groove part is fixedly connected with one end of the second spring, the upper end of the part is fixedly connected with the lower end of the driving rod, the other end of the second spring is fixedly connected with the bottom of the driving groove, the upper end of the driving rod extends into the mounting groove, the upper end surface of the test connecting pipe is provided with a placing groove, when the threaded end is positioned in the socket, the threaded end is in threaded connection with the standard casing of the equipment by applying external force to the rotating rod, in the wire connection process of the mounting groove and the test power supply, the wire of the test power supply pushes the driving rod to move downwards, so that the rotating rod overcomes the elastic force of the second spring and contracts into the placing groove.
Further, the second permanent magnet is located at the middle position of the clamping plate.
Furthermore, the test connector is supported by an insulating material, and a shielding layer is arranged inside the test connector.
Furthermore, the lower end edge of the rotating body is provided with a circular ring.
The invention has the beneficial effects that: when the ring main unit equipment sleeve pressure resistance test device is used, the conducting rod penetrates through the through hole to enable the threaded end to be located in the inserting port, then the conducting rod is rotated to enable the threaded end to be screwed into the equipment standard sleeve, then the mounting groove is electrically connected with the test power supply, the rotating body is driven to approach towards the direction of the fixing piece, and after the lower end face of the rotating body is contacted with the outer side face of the fixing piece, the fixing piece is driven to fix the equipment standard sleeve located in the inserting port, so that the device can adapt to equipment standard sleeves of different models, and the application range is expanded.
Drawings
FIG. 1 is a first cross-sectional front view of an embodiment of the present invention;
FIG. 2 is a second front cross-sectional view of an embodiment of the present invention;
FIG. 3 is a bottom view of an embodiment of the present invention;
FIG. 4 is a top view of a rotating body and moving mass in an embodiment of the present invention;
FIG. 5 is an enlarged view of the upper end of the conductive rod and the test connection tube in the embodiment of the present invention.
The test device comprises a test connecting pipe 1, a test connecting pipe 2, a through hole 2, a conductive rod 3, a threaded end 4, a mounting groove 5, a clamping plate 6, a first spring 7, a support column 8, a support groove 9, a fixing plate 10, a rotating body 11, a sliding groove 12, a moving block 13, a first permanent magnet 14, a second permanent magnet 15, a positioning block 16, a positioning groove 17, a rotating rod 18, a driving groove 19, a driving rod 20, a second spring 21, a placing groove 22 and a sliding hole 23.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to specific embodiments and the accompanying drawings.
In view of the above objects, the first aspect of the present invention provides an embodiment of a ring main unit equipment casing withstand voltage testing apparatus, as shown in fig. 1 and 3, including,
the test connecting pipe 1 is internally provided with a through hole 2 penetrating through the upper end surface and the lower end surface of the test connecting pipe 1;
the test adapter tube comprises a plurality of fixing pieces 10 distributed on the bottom edge of the test adapter tube 1, wherein the bottom of each fixing piece 10 is hinged with the bottom edge of the test adapter tube 1, and a plug-in port matched with the conical surface of the standard sleeve of the equipment is formed among the plurality of fixing pieces 10;
the rotating body 11 is sleeved on the test connecting pipe 1 and is in threaded connection with the outer side surface of the test connecting pipe 1;
conducting rod 3, its one end is equipped with screw thread end 4, and the other end is equipped with mounting groove 5 after conducting rod 3 passes through hole 2, screw thread end 4 is located the socket to make its screw in equipment standard cover intraductally, make mounting groove 5 and test power electric connection to drive rotor 11 is close to stationary blade 10 direction, makes the lower terminal surface of rotor 11 and the lateral surface contact back of stationary blade 10, and it is fixed that drive stationary blade 10 will be located the intraoral equipment standard cover pipe of socket.
When using, pass through hole 2 with conducting rod 3 earlier, make 4 head of screw thread end be located the socket, then rotate conducting rod 3, make 4 screw in equipment standard cover of screw thread end intraductal, then make mounting groove 5 and test power electric connection, and drive rotor 11 is close to stationary blade 10 direction, make the lower terminal surface of rotor 11 and the lateral surface contact back of stationary blade 10, it is fixed that drive stationary blade 10 will be located the equipment standard cover of socket, make this device can adapt to the equipment standard cover of different models like this, the application range is enlarged.
As an embodiment, as shown in fig. 2, the clamping device further includes a clamping plate 6 and first springs 7, at least three clamping plates 6 are disposed around the central axis of the through hole 2, a plurality of first springs 7 are distributed on the side surface of the clamping plate 6 facing the inner side wall of the through hole 2, one end of each first spring 7 is fixed on the inner side wall of the through hole 2, and the other end of each first spring 7 is fixed on the side surface of the clamping plate 6.
In this embodiment, the conducting rod 3 will overcome the elasticity of first spring 7 when inserting between at least three grip block 6, make grip block 6 outwards move a distance, conducting rod 3 receives the clamping-force of grip block 6 simultaneously, makes conducting rod 3 remain stable, avoids conducting rod 3 to drop from through hole 3, owing to experimental under different voltages in addition, needs the conducting rod 3 of different diameters to test, through this kind of mode, can both carry out stably to the conducting rod 3 of different diameters.
As an embodiment, as shown in fig. 2, a support column 8 is included, the support column 8 is slidably connected with a support groove 9 provided on the clamping plate 6, and one end of the support column 8 is fixed to a side wall of the through hole 2, and the position of the clamping plate 6 in the vertical direction in the through hole 2 is defined by the support column 8, so that the clamping plate 6 effectively resists the impact force in the vertical direction.
As an embodiment, as shown in fig. 2, the clamping device includes a moving block 13, a first permanent magnet 14 and a second permanent magnet 15, a plurality of sliding grooves 12 are formed in a side surface of the rotating body 11, a sliding hole 23 penetrating through upper and lower end surfaces of the moving block 13 is formed in the moving block 13, bosses corresponding to the sliding grooves 12 one to one are formed in an inner side surface of the sliding hole 23, the moving block 13 is sleeved on the rotating body 11 through the sliding hole 23 and slidably connected with the sliding grooves 12, the second permanent magnet 15 is arranged in the clamping plate 6, and the first permanent magnet 14 corresponding to the clamping plate 6 one to one is formed in an inner side wall of the sliding hole 23.
In this embodiment, before the conductive rod 3 is inserted, the moving block 13 is slid on the rotating body 11, and at the same time, the rotating body 11 is rotated by a certain angle, and finally, the first permanent magnet 14 is positioned right ahead of the corresponding second permanent magnet 15, so that a suction force is generated between the first permanent magnet 14 and the second permanent magnet 15, and the clamping plates 6 are separated from each other against the elastic force of the first spring 7, at this time, the conductive rod 3 can be smoothly inserted between the clamping plates 6, and when the threaded end 4 is screwed into the standard casing of the device, the moving block 13 is moved downward, so that the positions of the first permanent magnet 14 and the second permanent magnet 15 are staggered, the mutual acting force between the two is greatly reduced or eliminated, at this time, the clamping block 6 fixes the position of the conductive rod 3 under the elastic force of the first spring 7, and this way, the working efficiency can be effectively improved.
As an embodiment, as shown in fig. 2 and 4, the testing device further includes a positioning block 16, at least one positioning block 16 is fixed on the outer surface of the test adapter 1 near the upper end, a positioning groove 17 matched with the positioning block 16 is arranged at the upper edge of the inner side wall of the slide hole 23, when the positioning block 16 is combined with the positioning groove 17, the first permanent magnet 14 faces one of the second permanent magnets 15, and an attractive force is generated between the first permanent magnet and the second permanent magnet, so that an operator can quickly find a position where the first permanent magnet 14 is located right in front of the corresponding second permanent magnet 15 through the positioning block 16, and the working efficiency is further improved.
As an embodiment, as shown in fig. 5, the test socket further includes a rotating rod 18, a driving rod 20 and a second spring 21, wherein a driving groove 19 penetrating through a side surface of the conductive rod 3 is formed in an upper portion of the conductive rod 3, the driving groove 19 is located below the mounting groove 5, the rotating rod 18 penetrates through the driving groove 19, a lower end of a portion of the rotating rod 18 located in the driving groove 19 is fixedly connected to one end of the second spring 21, an upper end of the portion is fixedly connected to a lower end of the driving rod 20, another end of the second spring 21 is fixedly connected to a bottom of the driving groove 19, an upper end of the driving rod 20 extends into the mounting groove 5, a placing groove 22 is formed in an upper end surface of the test adapter 1, when the threaded end 4 is located in the socket, the threaded end 4 is screwed to the equipment standard bushing by applying an external force to the rotating rod 18, and during a wire connection process between the mounting groove 5 and a test power supply, the lead of the test power source pushes the driving lever 20 to move downward, thereby causing the rotating lever 18 to retract into the placing groove 22 against the elastic force of the second spring 21.
Because directly transmit pole 3 through hand rotation to make 4 screw thread ends 4 screw in equipment standard sleeve intraductally, have certain degree of difficulty, consequently in this embodiment, available hand directly acts on dwang 18, rotate through dwang 18 drive conducting rod 3, it is much easier, after 4 screw thread ends 4 screw in equipment standard sleeve are intraductal, at the wire connection in-process of mounting groove 5 and experimental power, the wire of experimental power promotes actuating lever 20 and moves down, thereby make dwang 18 overcome the elasticity shrink of second spring 21 to the standing groove 22 in.
In one embodiment, as shown in fig. 2, the second permanent magnet 15 is located at a middle position of the clamping plate 6, so that the suction force received by the clamping plate 6 is uniform.
As an embodiment, as shown in fig. 1 and 2, the test connection pipe 1 is supported by an insulating material, and a shielding layer is arranged inside the test connection pipe 1 to ensure the completeness of an operator during an experiment.
As an embodiment, as shown in fig. 1 and 2, the lower end edge of the rotator 11 is provided with a circular ring so as to be in contact with the outer side surface of the fixing piece 10, thereby being less worn.
Those of ordinary skill in the art will understand that: the discussion of any embodiment above is meant to be exemplary only, and is not intended to intimate that the scope of the disclosure, including the claims, is limited to these examples; within the idea of the invention, also technical features in the above embodiments or in different embodiments may be combined and there are many other variations of the different aspects of the invention as described above, which are not provided in detail for the sake of brevity. Therefore, any omissions, modifications, substitutions, improvements and the like that may be made without departing from the spirit and principles of the invention are intended to be included within the scope of the invention.
Claims (8)
1. The utility model provides a looped netowrk cabinet equipment sleeve pipe withstand voltage test device which characterized in that: comprises the steps of (a) preparing a mixture of a plurality of raw materials,
the test connecting pipe (1) is internally provided with a through hole (2) penetrating through the upper end face and the lower end face of the test connecting pipe (1);
the test adapter tube comprises a plurality of fixing pieces (10) distributed on the bottom edge of the test adapter tube (1), wherein the bottom of each fixing piece (10) is hinged with the bottom edge of the test adapter tube (1), and a plurality of inserting ports matched with the conical surface of a standard sleeve of equipment are formed among the fixing pieces (10);
the rotating body (11) is sleeved on the test connecting pipe (1) and is in threaded connection with the outer side surface of the test connecting pipe (1);
the testing device comprises a conductive rod (3), wherein one end of the conductive rod is provided with a threaded end (4), the other end of the conductive rod is provided with a mounting groove (5), after the conductive rod (3) penetrates through a through hole (2), the threaded end (4) is positioned in a socket and is screwed into an equipment standard sleeve, the mounting groove (5) is electrically connected with a testing power supply, a rotating body (11) is driven to approach to the direction of a fixing piece (10), and after the lower end face of the rotating body (11) is contacted with the outer side face of the fixing piece (10), the fixing piece (10) is driven to fix the equipment standard sleeve positioned in the socket;
still include dwang (18), actuating lever (20) and second spring (21), the upper portion of conducting rod (3) is equipped with driving groove (19) that runs through conducting rod (3) side surface, and driving groove (19) are located the below of mounting groove (5), dwang (18) pass driving groove (19), dwang (18) be located the lower extreme of driving groove (19) part with the one end fixed connection of second spring (21), and the upper end of this part with the lower extreme fixed connection of actuating lever (20), the other end of second spring (21) and the bottom fixed connection of driving groove (19), the upper end of actuating lever (20) extends to in mounting groove (5), the up end of experimental takeover (1) is equipped with standing groove (22), when screw end (4) are located the socket, through applying external force to dwang (18), the threaded end (4) is in threaded connection with the standard sleeve of the equipment, and in the process of connecting the mounting groove (5) with the lead of the test power supply, the lead of the test power supply pushes the driving rod (20) to move downwards, so that the rotating rod (18) overcomes the elastic force of the second spring (21) and contracts into the placing groove (22).
2. The ring main unit equipment bushing withstand voltage test device of claim 1, characterized in that: still include grip block (6) and first spring (7) the periphery of through hole (2) axis is provided with at least three grip block (6), grip block (6) have a plurality ofly towards the side distribution of through hole (2) inside wall first spring (7), the one end of first spring (7) is fixed in the inside wall of through hole (2), and the other end of first spring (7) is fixed in the side of grip block (6).
3. The ring main unit equipment bushing withstand voltage test device of claim 2, characterized in that: including support column (8), support column (8) and support groove (9) sliding connection who sets up on grip block (6), and the lateral wall in through hole (2) is fixed in to the one end of support column (8).
4. The ring main unit equipment bushing withstand voltage test device of claim 2, characterized in that: the novel clamping device is characterized by comprising a moving block (13), a first permanent magnet (14) and a second permanent magnet (15), wherein a plurality of sliding grooves (12) are formed in the side surface of a rotating body (11), sliding holes (23) penetrating through the moving block (13) and the upper end surface and the lower end surface of the moving block are formed in the moving block (13), bosses in one-to-one correspondence with the sliding grooves (12) are arranged on the inner side surface of each sliding hole (23), the moving block (13) is sleeved on the rotating body (11) through the sliding holes (23) and is connected with the sliding grooves (12) in a sliding mode, the second permanent magnet (15) is arranged in a clamping plate (6), and the first permanent magnet (14) in one-to-one correspondence with the clamping plate (6) is arranged on the inner side wall of each sliding hole (23).
5. The ring main unit equipment bushing withstand voltage test device of claim 4, characterized in that: the testing device is characterized by further comprising a positioning block (16), at least one positioning block (16) is fixed on the outer side surface of the testing connecting pipe (1) close to the upper end, a positioning groove (17) matched with the positioning block (16) is formed in the edge of the upper end of the inner side wall of the sliding hole (23), when the positioning block (16) is combined with the positioning groove (17), the first permanent magnet (14) is just opposite to one of the second permanent magnets (15), and attraction force is generated between the first permanent magnet and the second permanent magnet.
6. The ring main unit equipment bushing withstand voltage test device of claim 4, characterized in that: the second permanent magnet (15) is positioned in the middle of the clamping plate (6).
7. The ring main unit equipment bushing withstand voltage test device of claim 1, characterized in that: the test connecting pipe (1) is supported by an insulating material, and a shielding layer is arranged inside the test connecting pipe (1).
8. The ring main unit equipment bushing withstand voltage test device of claim 7, characterized in that: and a circular ring is arranged at the edge of the lower end of the rotating body (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911381414.2A CN111025105B (en) | 2019-12-27 | 2019-12-27 | Ring main unit equipment sleeve withstand voltage test device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911381414.2A CN111025105B (en) | 2019-12-27 | 2019-12-27 | Ring main unit equipment sleeve withstand voltage test device |
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| Publication Number | Publication Date |
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| CN111025105A CN111025105A (en) | 2020-04-17 |
| CN111025105B true CN111025105B (en) | 2021-11-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201911381414.2A Active CN111025105B (en) | 2019-12-27 | 2019-12-27 | Ring main unit equipment sleeve withstand voltage test device |
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| KR20020083259A (en) * | 2001-04-26 | 2002-11-02 | 엘지전선 주식회사 | Test method of high voltage free mold type cable connector rubber sleeve |
| CN101923140A (en) * | 2010-09-07 | 2010-12-22 | 北京必成达电缆附件有限公司 | Withstand test device of sleeve of looped network cabinet equipment |
| CN204188754U (en) * | 2014-09-25 | 2015-03-04 | 江苏远航电缆附件有限公司 | 110kVGIS terminal stress cone proving installation |
| CN104391238A (en) * | 2014-12-03 | 2015-03-04 | 京东方科技集团股份有限公司 | Probe and testing device |
| CN108918921A (en) * | 2018-08-06 | 2018-11-30 | 河海大学 | A kind of 220kV submarine cable GIS terminal pressure resistance ancillary equipment |
| CN109239414A (en) * | 2018-10-30 | 2019-01-18 | 江苏士林电气设备有限公司 | A kind of cable termination is to connection module |
| CN209690453U (en) * | 2018-09-09 | 2019-11-26 | 江苏宇诚业基电气设备有限公司 | A kind of 220kV cable run field test device |
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2019
- 2019-12-27 CN CN201911381414.2A patent/CN111025105B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20020083259A (en) * | 2001-04-26 | 2002-11-02 | 엘지전선 주식회사 | Test method of high voltage free mold type cable connector rubber sleeve |
| CN101923140A (en) * | 2010-09-07 | 2010-12-22 | 北京必成达电缆附件有限公司 | Withstand test device of sleeve of looped network cabinet equipment |
| CN204188754U (en) * | 2014-09-25 | 2015-03-04 | 江苏远航电缆附件有限公司 | 110kVGIS terminal stress cone proving installation |
| CN104391238A (en) * | 2014-12-03 | 2015-03-04 | 京东方科技集团股份有限公司 | Probe and testing device |
| CN108918921A (en) * | 2018-08-06 | 2018-11-30 | 河海大学 | A kind of 220kV submarine cable GIS terminal pressure resistance ancillary equipment |
| CN209690453U (en) * | 2018-09-09 | 2019-11-26 | 江苏宇诚业基电气设备有限公司 | A kind of 220kV cable run field test device |
| CN109239414A (en) * | 2018-10-30 | 2019-01-18 | 江苏士林电气设备有限公司 | A kind of cable termination is to connection module |
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