CN218995455U - Portable insulating cylinder for withstand voltage test - Google Patents
Portable insulating cylinder for withstand voltage test Download PDFInfo
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- CN218995455U CN218995455U CN202223241655.7U CN202223241655U CN218995455U CN 218995455 U CN218995455 U CN 218995455U CN 202223241655 U CN202223241655 U CN 202223241655U CN 218995455 U CN218995455 U CN 218995455U
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Abstract
An insulating cylinder for portable withstand voltage test, comprising: the insulation tube body is provided with a first tube opening and a second tube opening, the first tube opening is used for placing a tested cable into the insulation tube body, the second tube opening is used for accessing a test wire, the insulation tube body is an L-shaped pipeline, and the insulation tube body is made of insulation materials; the test clamp is provided with a clamping end and a wiring end, the wiring end is connected with the test wire, the clamping end is connected with the tested cable, and the test clamp is used for realizing the electrical connection between the test wire and the tested cable; the elastic insulating plug is provided with a first through hole, the first through hole is used for the test wire to pass through, and the outer diameter of the elastic insulating plug is slightly larger than the inner diameter of the second pipe orifice in a natural state. The portable insulating cylinder for the withstand voltage test provided by the embodiment of the utility model has a simple structure, is convenient to carry, realizes the withstand voltage test on the cable in a narrow space, and can well solve the problem of discharge caused by the close distance between the cables.
Description
Technical Field
The utility model belongs to the technical field of cable withstand voltage tests, and particularly relates to an insulating cylinder for a portable withstand voltage test.
Background
Along with the increasing of energy storage and photovoltaic power stations, 10kV and 35kV high-voltage cables are increasingly used, and in order to ensure the installation process specification of a cable head and avoid power transmission faults caused by cable defects, each constructed cable needs to be tested according to the handover acceptance specification. Because the switch cabinet is small in size, cable heads which are manufactured but not mounted on the busbar are sometimes close to the edge of the switch cabinet, so that the insulation distance between the cable heads or the edge of the switch cabinet is insufficient, the insulation distance between the test wire and the connectors at the two ends of the cable to be tested and nearby equipment under the test voltage is difficult to maintain during the test, the cable heads or the cable heads are not mounted on the busbar, the test failure is caused by poor treatment, and the influence of repeated discharge on the test equipment is also large.
Disclosure of Invention
The present utility model aims to solve at least one of the technical problems existing in the prior art. Therefore, the utility model provides the portable insulating cylinder for the withstand voltage test, which solves the problem that the insulating cylinder for the portable withstand voltage test causes discharge due to insufficient insulating distance, so that the damage to human bodies and equipment is caused.
According to an embodiment of the present utility model, a portable withstand voltage test insulating cylinder includes:
the insulation tube body is provided with a first tube opening and a second tube opening, the first tube opening is used for placing a tested cable into the insulation tube body, the second tube opening is used for accessing a test wire, the insulation tube body is an L-shaped pipeline, and the insulation tube body is made of insulation materials;
the test clamp is provided with a clamping end and a wiring end, the wiring end is connected with the test wire, the clamping end is connected with the tested cable, and the test clamp is used for realizing the electrical connection between the test wire and the tested cable;
the elastic insulating plug is provided with a first through hole, the first through hole is used for the test wire to pass through, the outer diameter of the elastic insulating plug is slightly larger than the inner diameter of the second pipe orifice in a natural state, and the diameter of the first through hole is slightly smaller than the diameter of the cross section of the test wire in the natural state.
According to the portable insulation cylinder for the withstand voltage test, provided by the embodiment of the utility model, at least the following technical effects are provided: the second mouth of pipe of insulating cylinder body is used for the access of test wire, and inside the insulating cylinder body was put into through first mouth of pipe to the cable that is surveyed, and test clamp is through holding end and wiring end with the cable that is surveyed inside realizing electric connection at portable withstand voltage test with insulating cylinder, has realized the withstand voltage test to the cable that is surveyed inside the insulating cylinder body, has set up the elastic insulation stopper in the second mouth of pipe department of insulating cylinder body and has improved insulating effect, and portable withstand voltage test is with insulating cylinder with the cable that will be surveyed and other cables and switch cabinet frame electric insulation that do not need to carry out withstand voltage test separate, provides test space for withstand voltage test. The portable insulating cylinder for the withstand voltage test provided by the embodiment of the utility model has a simple structure, is convenient to carry, realizes the withstand voltage test on the cable in a narrow space, and can well solve the problem of discharge caused by the close distance between the cables.
According to some embodiments of the utility model, the insulating cylinder body comprises a first pipeline and a second pipeline, one end of the first pipeline is vertically connected with one end of the second pipeline, the connection part of the first pipeline and the second pipeline is internally conducted and externally sealed, the other end of the first pipeline is the first pipe orifice, and the other end of the second pipeline is the second pipe orifice.
According to some embodiments of the utility model, the insulating material is an epoxy.
According to some embodiments of the utility model, the thickness of the insulating cylinder body is 20mm.
According to some embodiments of the utility model, the elastic insulating plug is a rubber plug.
According to some embodiments of the utility model, the test clip comprises a metal clip and an insulating protective sleeve, the clip end and the terminal end being disposed on the metal clip.
According to some embodiments of the utility model, the tested cable is any one cable conductor of a double-spliced cable or a triple-spliced cable.
Additional aspects and advantages of the utility model will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the utility model.
Drawings
The foregoing or additional aspects and advantages of the utility model will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings, in which:
FIG. 1 is a schematic view showing a structure of an insulating cylinder for a portable withstand voltage test according to an embodiment of the present utility model;
fig. 2 is a schematic structural view of an insulation cylinder body according to an embodiment of the present utility model;
FIG. 3 is a schematic view of the structure of a test clip according to an embodiment of the present utility model.
Reference numerals:
an insulating cylinder body 100, a first pipe 110, a first pipe orifice 111, a second pipe 120, a second pipe orifice 121,
A cable 200 to be tested, a cable head 210,
A resilient insulating plug 500.
Detailed Description
Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements provided with like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the utility model.
In the description of the present utility model, it should be understood that references to orientations, such as upper, lower, front, back, left, right, etc., are only for purposes of describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements being referred to must be positioned in, configured and operated in, a particular orientation, and thus are not to be construed as limiting the utility model.
In the description of the present utility model, a number means one or more, a number means two or more, and greater than, less than, exceeding, etc. are understood to not include the present number, and above, below, within, etc. are understood to include the present number. The description of the first and second is for the purpose of distinguishing between technical features only and should not be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.
In the description of the present utility model, unless explicitly defined otherwise, terms such as arrangement, installation, connection, etc. should be construed broadly and the specific meaning of the terms in the present utility model can be reasonably determined by a person skilled in the art in combination with the specific contents of the technical scheme.
An insulation cylinder for a portable withstand voltage test according to an embodiment of the present utility model is described below with reference to fig. 1 to 3.
According to the portable withstand voltage test insulating cylinder of the embodiment of the present utility model, the portable withstand voltage test insulating cylinder includes an insulating cylinder body 100, a test clip 400, and an elastic insulating plug 500.
The insulation cylinder body 100 is provided with a first pipe orifice 111 and a second pipe orifice 121, the first pipe orifice 111 is used for placing the tested cable 200 into the insulation cylinder body 100, the second pipe orifice 121 is used for accessing the test wire 300, and the insulation cylinder body 100 is an L-shaped pipeline; the insulating cylinder body 100 is made of insulating material; the test clamp 400 is provided with a clamping end 410 and a wiring end 420, the wiring end 420 is connected with the test wire 300, the clamping end 410 is connected with the tested cable 200, and the test wire 300 is electrically connected with the tested cable 200; the elastic insulating plug 500 is provided with a first through hole for the test wire 300 to pass through, and the outer diameter of the elastic insulating plug 500 is slightly larger than the inner diameter of the second pipe orifice 121 in a natural state.
Referring to fig. 1, in the voltage withstand test, the test wire 300 passes through the first through hole of the elastic insulating plug 500 and is connected to the terminal 420 of the test clip 400, and the test clip 400 enters the insulating cylinder body 100 through the second nozzle 121 of the insulating cylinder body 100 with the test wire 300 and is led out from the first nozzle 111 of the insulating cylinder body 100. The clamping end 410 of the test clamp 400 clamps the cable head 210 of the tested cable 200, the test wire 300 is electrically connected with the tested cable 200, and the tested cable 200 enters the insulating cylinder body 100 from the first pipe orifice 111 of the insulating cylinder body 100 by pulling the test wire 300, and the elastic insulating plug 500 is arranged at the second pipe orifice 121 of the insulating cylinder body 100. The insulating cylinder body 100 electrically insulates the cable 200 to be tested and the test wire 300 from the adjacent cable and the switchgear frame, pressurizes the test wire 300, and performs a withstand voltage test on the cable 200 to be tested.
According to the portable insulation tube for withstand voltage test of the embodiment of the utility model, the second tube orifice 121 of the insulation tube body 100 is used for connecting the test wire 300, the tested cable 200 is placed into the insulation tube body 100 through the first tube orifice 111, the test clamp 400 electrically connects the test wire 300 and the tested cable 200 in the portable insulation tube for withstand voltage test through the clamping end 410 and the terminal 420, the withstand voltage test of the tested cable 200 is realized in the insulation tube body 100, the insulation effect is improved by the elastic insulation plug 500 arranged at the second tube orifice 121 of the insulation tube body 100, and the portable insulation tube for withstand voltage test electrically isolates the tested cable 200 from other cables and switch cabinet frames which do not need to be subjected to the withstand voltage test, so that test space is provided for the withstand voltage test. The portable insulating cylinder for the withstand voltage test provided by the embodiment of the utility model has a simple structure, is convenient to carry, realizes the withstand voltage test on the cable in a narrow space, and can well solve the problem of discharge caused by the close distance between the cables.
In some embodiments, the diameter of the first through hole is slightly smaller than the diameter of the cross section of the test line 300 in its natural state.
In some embodiments, the test wire 300 is maintained at a distance of greater than 10mm from the wall of the cartridge body 100 by the resilient insulating plug 500.
Referring to fig. 2, in some embodiments of the present utility model, the insulating cylinder body 100 includes a first pipe 110 and a second pipe 120, one end of the first pipe 110 is vertically connected to one end of the second pipe 120, the connection portion between the first pipe 110 and the second pipe 120 is internally conducted and externally sealed, the other end of the first pipe 110 is a first pipe orifice 111, and the other end of the second pipe 120 is a second pipe orifice 121. The first pipe 110 and the second pipe 120 are integrally formed, the test wire 300 connected with the terminal 420 enters the second pipe 120 from the second pipe orifice 121, the clamping end 410 of the test clamp 400 is connected with the tested cable 200, the tested cable 200 is arranged inside the first pipe 110, a pressure-proof test is carried out at the connection part of the first pipe 110 and the second pipe 120, and the first pipe 110 and the second pipe 120 electrically isolate the tested cable 200 and the test wire 300 from adjacent cables and the switch cabinet frame.
In some embodiments, the first conduit 110 and the second conduit 120 are each cylindrical structures.
In some embodiments of the utility model, the insulating material is an epoxy. The epoxy resin has better heat resistance and electrical insulation, excellent chemical resistance and stable property, can improve the durability of the insulating cylinder for the portable pressure test, and ensures that the insulating cylinder for the portable pressure test is portable and convenient to carry.
In some of the above embodiments of the present utility model, the thickness of the insulating cylinder body 100 is 20mm. The electrical strength of the epoxy resin is more than or equal to 15kV/mm, the insulation requirement of the withstand voltage test of 10kV and 35kV high-voltage cables can be met when the thickness of the epoxy resin is 20mm, and the insulation cylinder body 100 is not easy to crush when the thickness of the insulation cylinder body is 20mm, so that the insulation cylinder for the portable withstand voltage test is damaged.
In some embodiments, the thickness of the insulating cylinder body 100 is 2mm when testing a withstand voltage 10kV cable; when testing a voltage-withstanding 35kV cable, the thickness of the insulating cylinder body 100 is 4mm. The thickness of the insulative cartridge body 100 may be selected based on the actual and electrical strength of the epoxy.
In some embodiments of the present utility model, the resilient insulating plug 500 is a rubber plug. Rubber is insulating and elastic, and the adoption of rubber as the material of the elastic insulating plug 500 can improve the insulating effect of the insulating cylinder for the portable withstand voltage test in the embodiment of the utility model.
In some embodiments of the present utility model, test clip 400 includes a metal clip and an insulating protective sleeve, with clip end 410 and terminal end 420 disposed on the metal clip. The test wire 300 and the cable under test 200 are electrically connected by the metal clamp, and the insulating protective sleeve realizes electrical isolation.
In some embodiments of the present utility model, the cable 200 under test is either a duplex or a triplex cable conductor. In the case of double or triple splicing of the cables 200 under test, the cables 200 under test are close together with the cables on the sides, resulting in insufficient insulation distance between each other. Any cable conductor to be tested in the double-spliced cable or the triple-spliced cable is placed in the insulating cylinder body 100, the required insulation distance can be kept by utilizing the portable insulating cylinder for the voltage withstand test, the required insulation distance is kept all the time in the test, and the problem that the distance between cables is short and discharge is solved when the voltage withstand test of the tested cable 200 is realized. In some embodiments, the portable withstand voltage test insulating cylinder of the present utility model is applicable even when the pressurizing place is close to the metal discharge site.
In the description of the present specification, reference to the terms "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
Although the embodiments of the present utility model have been described in detail with reference to the accompanying drawings, the present utility model is not limited to the embodiments, and those skilled in the art will appreciate that: many changes, modifications, substitutions and variations may be made to the embodiments without departing from the spirit and principles of the utility model, the scope of which is defined by the claims and their equivalents.
Claims (7)
1. An insulating cylinder for portable withstand voltage test, comprising:
the insulation tube comprises an insulation tube body (100), wherein the insulation tube body is provided with a first tube opening (111) and a second tube opening (121), the first tube opening (111) is used for placing a tested cable (200) into the insulation tube body (100), the second tube opening (121) is used for connecting a test wire (300), the insulation tube body (100) is an L-shaped pipeline, and the insulation tube body (100) is made of an insulation material;
a test clip (400) having a clamping end (410) and a terminal (420), the terminal (420) being connected to the test wire (300), the clamping end (410) being connected to the cable under test (200) for effecting an electrical connection of the test wire (300) to the cable under test (200);
the elastic insulation plug (500) is provided with a first through hole, the first through hole is used for the test wire (300) to pass through, and the outer diameter of the elastic insulation plug (500) is slightly larger than the inner diameter of the second pipe orifice (121) in a natural state.
2. The portable pressure test insulation tube according to claim 1, wherein the insulation tube body (100) comprises a first tube (110) and a second tube (120), one end of the first tube (110) is vertically connected with one end of the second tube (120), the connection part of the first tube (110) and the second tube (120) is internally conducted and externally sealed, the other end of the first tube (110) is the first tube orifice (111), and the other end of the second tube (120) is the second tube orifice (121).
3. The portable pressure test insulation tube according to claim 1, wherein the insulation material is epoxy resin.
4. A portable withstand voltage test insulating cylinder according to claim 3, characterized in that the thickness of the insulating cylinder body (100) is 20mm.
5. The portable pressure test insulation cylinder according to claim 1, wherein the elastic insulation plug (500) is a rubber plug.
6. The portable withstand voltage test insulating cylinder according to claim 1, wherein the test clip (400) includes a metal clamp and an insulating protective sleeve, and the clamping end (410) and the terminal (420) are provided on the metal clamp.
7. The portable pressure test insulation cylinder according to claim 1, wherein the cable (200) to be tested is any one of a double-spliced cable and a triple-spliced cable.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223241655.7U CN218995455U (en) | 2022-12-02 | 2022-12-02 | Portable insulating cylinder for withstand voltage test |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223241655.7U CN218995455U (en) | 2022-12-02 | 2022-12-02 | Portable insulating cylinder for withstand voltage test |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218995455U true CN218995455U (en) | 2023-05-09 |
Family
ID=86221430
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223241655.7U Active CN218995455U (en) | 2022-12-02 | 2022-12-02 | Portable insulating cylinder for withstand voltage test |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218995455U (en) |
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2022
- 2022-12-02 CN CN202223241655.7U patent/CN218995455U/en active Active
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