CN212905248U

CN212905248U - Withstand voltage measurement system of insulator spindle

Info

Publication number: CN212905248U
Application number: CN202021913410.2U
Authority: CN
Inventors: 郭宇航; 沈文潮; 白鹏; 白绍平
Original assignee: Shenshuo Railway Branch of China Shenhua Energy Co Ltd
Current assignee: Shenshuo Railway Branch of China Shenhua Energy Co Ltd
Priority date: 2020-09-04
Filing date: 2020-09-04
Publication date: 2021-04-06
Anticipated expiration: 2030-09-04

Abstract

The application relates to a withstand voltage measuring system of an insulating rod. The insulation rod withstand voltage measuring system comprises a first conducting rod, a conducting hook, a first fixing device and a voltage transformation device. The conductive hook is hung on the first conductive rod. The first fixing device is arranged on the conductive hook. The first fixing device is used for fixing the insulating rod to be detected to the conductive hook. The first fixing device is a conductive device. The positive pole of the transformation device is connected with the first conducting rod. The negative pole of the transformation device is connected with the insulating rod, and the negative pole of the transformation device is grounded. The control device is connected with the voltage transformation device. The preset voltage output by the voltage transformation device is loaded on the insulating rod to be detected through the first conducting rod, the conducting hook and the first fixing device. And if the insulation withstand voltage grade of the insulating rod does not reach the preset voltage, the insulating rod is broken down, and the insulating rod has layout burning marks.

Description

Withstand voltage measurement system of insulator spindle

Technical Field

The application relates to the technical field of electric power, in particular to a withstand voltage measuring system for an insulating rod.

Background

The power supply operator needs to operate the live line or the equipment frequently. The power supply operator generally performs operations such as switching on and off, electricity testing and the like on the live equipment or the circuit by holding the insulating rod by hand. The insulating rod plays a role in isolating high voltage electricity, and the harm of the high voltage electricity to personal safety is avoided. If the insulator spindle does not reach along withstand voltage level, when power supply operation personnel carried out operations such as divide-shut brake, electroscope to live equipment or circuit through handheld insulator spindle, the insulator spindle was punctureed easily, and power supply operation personnel have the risk of electrocution.

Whether the insulating rod reaches the insulation voltage-resistant grade or not is a concern to the life safety of operators. Therefore, a system for detecting the dielectric breakdown voltage level of the insulating rod is needed.

SUMMERY OF THE UTILITY MODEL

Based on this, it is necessary to provide an insulation rod voltage resistance measurement system for the problem of how to detect whether the insulation rod reaches the insulation voltage resistance level.

An insulation rod withstand voltage measuring system comprises a first conducting rod, a conducting hook and a first fixing device. The conductive hook is hung on the first conductive rod. The first fixing device is arranged on the conductive hook. The first fixing device is used for fixing the insulating rod to be detected to the conductive hook, and the conductive hook is electrically connected with the insulating rod. The positive pole of the transformation device is connected with the first conducting rod, and the negative pole of the transformation device is connected with the insulating rod.

In one embodiment, the dielectric rod withstand voltage measuring system further comprises a first wire. The two ends of the first wire are respectively connected with the negative electrode of the voltage transformation device and the insulating rod, and the first wire is grounded.

In one embodiment, the insulation rod withstand voltage measuring system further comprises a second fixing device. The second fixing device is arranged on the first lead. The second fixing device is used for enabling the first lead to be electrically connected with the insulating rod.

In one embodiment, the conductive hook is provided with a plurality of first fixing devices at intervals, and each first fixing device is used for fixing one insulating rod.

In one embodiment, the number of the conductive hooks is two, the two conductive hooks are hung on the first conductive rod at intervals, one first fixing device of one conductive hook and one first fixing device of the other conductive hook are used for fixing one insulating rod together, and the second fixing device is connected with the insulating rod.

In one embodiment, the contact point of the second fixing means with the insulating rod is located between two of the first fixing means that are in contact with the insulating rod.

In one embodiment, the first conductor is spaced apart by at least one of the second fixing means.

In one embodiment, the insulation rod withstand voltage measuring system further comprises a supporting device. The supporting device is used for supporting the first conducting rod so that the first conducting rod is spaced from the ground by a set distance.

In one embodiment, the conductive hook includes a hook portion and a guide portion. The hook part is used for being hung on the first conducting rod. The guide rod part is connected with the tail end of the hook part. The guide rod part is provided with at least one first fixing device at intervals.

In one embodiment, the dielectric rod withstand voltage measuring system further comprises an insulating pad. The insulating pad is laid on the ground opposite to the conductive hook.

In one embodiment, the second fixing means comprises an electrically conductive clamp or an electrically conductive hook.

In one embodiment, the insulation rod withstand voltage measuring system further comprises a control device. The control device is connected with the voltage transformation device and is used for controlling the voltage transformation device to output preset voltage.

The withstand voltage measuring system of insulator spindle that this application embodiment provided includes first conducting rod, electrically conductive couple, first fixing device and potential device. The conductive hook is hung on the first conductive rod. The first fixing device is arranged on the conductive hook. The first fixing device is used for fixing the insulating rod to be detected to the conductive hook. The first fixing device is a conductive device. The positive pole of the transformation device is connected with the first conducting rod. The negative pole of the transformation device is connected with the insulating rod, and the negative pole of the transformation device is grounded. The control device is connected with the voltage transformation device. The preset voltage output by the voltage transformation device is loaded on the insulating rod to be detected through the first conducting rod, the conducting hook and the first fixing device. And if the insulation withstand voltage grade of the insulating rod does not reach the preset voltage, the insulating rod is broken down, and the insulating rod has layout burning marks.

In addition, the insulation rod withstand voltage measuring system fixes the insulation rod through the first fixing device, so that the insulation rod is prevented from being damaged, and the integrity of the insulation rod is maintained. The insulation rod withstand voltage measuring system is hung and is located through the conductive hook the first conducting rod is convenient to detach and store, and the space is saved.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments or the conventional technologies of the present application, the drawings used in the descriptions of the embodiments or the conventional technologies will be briefly introduced below, it is obvious that the drawings in the following descriptions are only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

Fig. 1 is a schematic structural diagram of the insulation bar withstand voltage measuring system provided in an embodiment of the present application;

FIG. 2 is a schematic view of the first lead and the second fixture provided in one embodiment of the present application;

fig. 3 is a schematic structural view of the conductive hook and the first fixing device provided in an embodiment of the present application.

Reference numerals:

10. an insulating rod voltage resistance measurement system; 20. a first conductive rod; 30. a conductive hook; 40. a first fixing device; 100. an insulating rod; 50. a voltage transformation device; 60. a control device; 70. a first conductive line; 80. a second fixing device; 90. a support device; 310. a hook portion; 320. a guide rod part; 900. an insulating pad.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present application more comprehensible, embodiments accompanying the present application are described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. This application is capable of embodiments in many different forms than those described herein and those skilled in the art will be able to make similar modifications without departing from the spirit of the application and it is therefore not intended to be limited to the embodiments disclosed below.

The numbering of the components as such, e.g., "first", "second", etc., is used herein for the purpose of describing the objects only, and does not have any sequential or technical meaning. The term "connected" and "coupled" when used in this application, unless otherwise indicated, includes both direct and indirect connections (couplings). In the description of the present application, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present application and for simplicity in description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, are not to be considered as limiting the present application.

In this application, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through intervening media. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

Referring to fig. 1, an embodiment of the present application provides an insulation rod withstand voltage measuring system 10, which includes a first conductive rod 20, a conductive hook 30, a first fixing device 40, and a voltage transforming device 50. The conductive hook 30 is hung on the first conductive rod 20. The first fixing device 40 is disposed on the conductive hook 30. The first fixing device 40 is used for fixing the insulating rod 100 to be detected to the conductive hook 30, and the conductive hook 30 is electrically connected with the insulating rod 100. The positive pole of the transformation device 50 is connected to the first conductive rod 20, and the negative pole of the transformation device 50 is connected to the insulating rod 100.

In the insulation rod withstand voltage measuring system 10 provided in the embodiment of the present application, the preset voltage output by the voltage transforming device 50 is loaded on the insulation rod 100 to be detected through the first conductive rod 20, the conductive hook 30 and the first fixing device 40. If the withstand voltage level of the insulating rod 100 does not reach the preset voltage, the insulating rod 100 is broken down, and a local burning mark appears on the surface of the insulating rod 100.

When the insulation rod 100 is broken down, an arc may occur at a contact position of the insulation rod 100 and the first fixing device 40, and a burning mark may be locally generated. By observing the surface state of the insulation rod 100 after pressurization, it can be determined whether the insulation rod 100 reaches the preset voltage.

In addition, the insulation rod withstand voltage measuring system 10 fixes the insulation rod 100 by the first fixing device 40, so as to avoid damage to the insulation rod 100, and help to maintain the integrity of the insulation rod 100. The insulation rod withstand voltage measuring system 10 is hung on the first conducting rod 20 through the conducting hook 30, so that the insulation rod withstand voltage measuring system is convenient to detach and store, and the space is saved.

The preset voltage is between 110V and 220V.

In one embodiment, the conductive hook 30 is electrically connected to the insulating rod 100 by a conductive means for the purpose of pressurizing the insulating rod 100. The conductive means includes wires, wires or other conductive devices, etc.

In one embodiment, the first fixing means 40 has conductivity, and the conductive hook 30 is electrically connected to the insulating rod 100 through the first fixing means 40.

The first fixing device 40 not only has a function of fixing the insulating rod 100 to be detected to the conductive hook 30, but also has a function of electrically connecting the conductive hook 30 with the insulating rod 100 by the first fixing device 40.

In one embodiment, the first fixing means 40 is a clip, a hook, a groove structure, a strap structure, or the like.

In one embodiment, the first fixing device 40 is a bent structure. The bending structure is disposed on the conductive hook 30. When a detection test is required, the insulation rod 100 is placed in the concave part of the bent structure, so that the position of the insulation rod 100 relative to the conductive hook 30 is fixed.

In one embodiment, the first fixing device 40 is in the shape of a hook. The short side of the hook is fixedly connected with the conductive hook 30.

The material of the first fixing device 40 is metal or conductive plastic. The material of the first fixing means 40 is the same as or different from that of the conductive hook 30.

The first fixing device 40 and the conductive hook 30 can be connected by welding, crimping, or bonding.

In one embodiment, the first conductive rod 20 is hung on the roof by a hanging device, and the first conductive rod 20 is parallel to the ground, so that the first conductive rod 20 is prevented from occupying the ground space. The first fixing device 40 is a bent structure. The opening of the bending structure is arranged towards the roof or the side surface. The insulating rod 100 is fixed in the bent structure in parallel with the first conductive rod 20. The bending structure is convenient to take.

In one embodiment, the height of the first conductive rod 20 is not less than 4m to ensure that the conductive hook 30 has a certain safety distance from the ground.

In one embodiment, the dielectric rod withstand voltage measuring system 10 further includes a first wire 70. Both ends of the first wire 70 are respectively connected to the negative electrode of the transformer 50 and the insulating rod 100, and the first wire 70 is grounded. The first wire 70 is used to connect the negative electrode of the transformer 50 and the insulating rod 100.

The preset voltage output by the voltage transformation device 50 is applied to the insulating rod 100 to be detected through the first conductive rod 20, the conductive hook 30, the first fixing device 40 and the first wire 70. If the withstand voltage level of the insulating rod 100 does not reach the preset voltage, the insulating rod 100 is broken down, and a local burning mark appears on the surface of the insulating rod 100.

The first conductor 70 includes an electric wire or an electric connector, etc.

In one embodiment, the dielectric rod withstand voltage measuring system 10 further includes a second fixing device 80. The second fixing device 80 is disposed on the first wire 70. The second fixing device 80 is used to electrically connect the first wire 70 with the insulation rod 100. The second fixing device 80 facilitates the connection and disconnection of the first wire 70 to and from the insulating rod 100.

In one embodiment, the second fixing device 80 has conductivity, and the first wire 70 is electrically connected to the insulating rod 100 through the second fixing device 80.

The second fixing device 80 has not only a function of fixing the first wire 70 to the insulating rod 100 to be inspected, but also a function of electrically connecting the first wire 70 and the insulating rod 100 by the second fixing device 80.

In one embodiment, the second fastening device 80 is a clip, a hook, a groove structure, a strap structure, or the like.

In one embodiment, the second fixing device 80 is a clip structure. The tail of the clip structure is connected to the first wire 70. When the detection test is required, the second fixing device 80 is clamped on the insulating rod 100, so that the insulating rod 100 is connected to the first wire 70.

The material of the second fixing device 80 is metal or conductive plastic. The material of the second fixing means 80 is the same as or different from that of the first wire 70.

The second fixing device 80 can be connected to the first wire 70 by welding, crimping, or bonding.

In one embodiment, the conductive hook 30 is provided with a plurality of first fixing devices 40 at intervals, and each first fixing device 40 is used for fixing one insulation rod 100. The conductive hook 30 fixes the insulating rods 100 through the first fixing devices 40, so that the insulating and voltage-resistant grades of the insulating rods 100 can be conveniently detected in batches, and the detection efficiency is improved.

Referring to fig. 2 and fig. 3, in an embodiment, two first fixing devices 40 are disposed at the same position of the conductive hook 30, and the two first fixing devices 40 are disposed on two sides of the conductive hook 30 respectively. One insulating rod 100 is provided per the first fixing means 40.

One of the second fixing devices 80 is simultaneously clamped to two adjacent insulating rods 100. Two adjacent insulating rods 100 are simultaneously connected with the first conducting wire 70, so that the insulating and voltage-resisting grades of the two adjacent insulating rods 100 are convenient to simultaneously improve the detection efficiency.

In one embodiment, the first wires 70 are spaced apart by at least one of the second fixing devices 80.

In one embodiment, the second fixing device 80 is plural. The second fixing devices 80 are connected in parallel to the first wires 70, respectively. By fixing different second fixing devices 80 to different insulation rods 100, respectively, simultaneous detection of a plurality of insulation rods 100 is achieved.

In one embodiment, two conductive hooks 30 are provided, two conductive hooks 30 are spaced apart from each other and hung on the first conductive rod 20, one first fixing device 40 of one conductive hook 30 and one first fixing device 40 of the other conductive hook 30 are used for fixing one insulating rod 100 together, and the second fixing device 80 is connected to the insulating rod 100 to enhance the stability of the insulating rod 100 and prevent the insulating rod from being separated from the first fixing device 40.

In one embodiment, the conductive hooks 30 are multiple and are hung on the first conductive rod 20 at intervals. The distance between the conductive hooks 30 on both sides is less than the length of the insulating rod 100, so that the insulating rod 100 is effectively fixed, and the stress of the insulating rod 100 is uniform.

In one embodiment, the relative positions of the two conductive hooks 30 are adjustable. The distance between the two conductive hooks 30 is smaller than the insulating rod 100.

In one embodiment, the dielectric rod withstand voltage measuring system 10 includes a plurality of conductive rod sets. Each of the conductive bar groups includes at least two of the conductive hooks 30. A plurality of the first fixing means 40 are provided to each of the two conductive hooks 30. Each of the conductive rod groups may fix a plurality of the insulating rods 100 at the same time. Multiple sets of the conductive rods can be measured simultaneously for multiple sets of the insulating rods 100. Each group of the insulation bars 100 includes at least one pair of the insulation bars 100. The pair of the insulating bars 100 refers to two insulating bars 100 disposed at the same position of the conductive hook 30.

In one embodiment, the number of the second fixing means 80 is half of the number of the first fixing means 40.

The connection between the insulating rod 100 and the first wire 70 is achieved by interposing a plurality of second fixing devices 80 between a plurality of pairs of insulating rods 100. One of the second fixing means 80 is sandwiched between a pair of the insulating rods 100. A plurality of pairs of the insulating bars 100 are connected in parallel to the first conductive line 70.

The insulation rod withstand voltage measuring system 10 increases the detection efficiency by increasing the number of the conductive hooks 30.

The contact point of the second fixing device 80 with the insulating rod 100 may be located at any position of the insulating rod 100. The insulation bar withstand voltage measuring system 10 is used for detecting the insulation withstand voltage grade of a part of the insulation bar 100 between the second fixing device 80 and the first fixing device 40.

In one embodiment, the contact point of the second fixing device 80 with the insulation rod 100 is disposed at the end, middle or tail portion of the insulation rod 100.

In one embodiment, the contact point of the second fixture 80 with the insulating rod 100 is located between two first fixtures 40 in contact with the insulating rod 100.

In one embodiment, the preset voltage generated by the voltage transformation device 50 is 110V. If the contact point of the second fixing means 80 with the insulating rod 100 is located at the middle of the insulating rod 100, the first fixing means 40 is fixed to one end of the insulating rod 100. After the test, no spark or burning trace appears on the insulating rod 100, and the insulation withstand voltage grade of the insulating rod 100 is 220V.

If the preset voltage generated by the transformer 50 is 110V, the first fixing device 40 is fixed at one end of the insulating rod 100, the second fixing device 80 is clamped on the insulating rod 100, and the distance between the first fixing device 40 and the second fixing device 80 is 1/3 times the length of the insulating rod 100, the insulation withstand voltage grade of the insulating rod 100 is 330V.

When the preset constant voltage generated by the voltage transformation device 50 is not changed, the distance between the first fixing device 40 and the second fixing device 80 on the insulating rod 100 is changed, so that the voltage class detection range of the insulating rod voltage-resistance measurement system 10 can be improved.

When an insulating rod 100 with a dielectric breakdown voltage level of 220V needs to be detected, but the maximum voltage generated by the voltage transformation device 50 is 110V, the first fixing device 40 may be fixed to one end of the insulating rod 100, the conductive hook 30 is connected to one end of the insulating rod 100, and the second fixing device 80 is clamped at the midpoint of the insulating rod 100.

In one embodiment, the dielectric rod withstand voltage measuring system 10 further includes a supporting device 90. The supporting device 90 is used for supporting the first conductive rod 20, so that the first conductive rod 20 is spaced from the ground by a set distance.

The supporting device 90 includes an insulating porcelain bottle, an insulating supporting rod or other insulating structural members.

In one embodiment, the conductive hook 30 includes a hook portion 310 and a guide portion 320. The hook portion 310 is used for being hung on the first conductive rod 20. The guide rod part 320 is connected to the rear end of the hook part 310. The guide rod part 320 is provided with at least one first fixing device 40 at intervals.

In one embodiment, the guide rod part 320 is provided with a plurality of first fixing devices 40 at intervals, and each first fixing device 40 is used for fixing one insulation rod 100. The guide rod part 320 fixes the insulation rods 100 through the first fixing devices 40, so that the insulation and voltage resistance grades of the insulation rods 100 can be conveniently detected in batches, and the detection efficiency is improved.

In one embodiment, two first fixing devices 40 are disposed at the same position of the guide rod part 320, and two first fixing devices 40 are disposed on two sides of the guide rod part 320 respectively. One insulating rod 100 is provided for each of the two first fixing devices 40. The same position of the guide rod part 320 means the same height of the guide rod part 320 from the ground. I.e. the same height from the ground for both said first fixing means 40. The guide bar part 320 and the hook part 310 each have conductivity.

The preset voltage output by the transformer 50 is applied to the insulation rod 100 to be detected through the first conductive rod 20, the hook portion 310, the guide rod portion 320 and the first fixing device 40. If the withstand voltage level of the insulating rod 100 does not reach the preset voltage, the insulating rod 100 is broken down, and a local burning mark appears on the surface of the insulating rod 100.

In one embodiment, the dielectric rod withstand voltage measuring system 10 further includes an insulating pad 900. The insulating pad 900 is laid on the ground right opposite to the conductive hook 30, so that the tail end of the conductive hook 30 is prevented from being too close to the ground to form electric arcs and generate dangers.

In order to improve the safety of the insulation rod withstand voltage measuring system 10, the laying range of the insulation pad 900 may be relatively large.

In one embodiment, the second fixing device 80 includes a conductive clamp or a conductive hook so as to be detached and adjusted at the position of the insulating rod 100.

In one embodiment, the dielectric rod withstand voltage measuring system 10 further includes a control device 60. The control device 60 is connected to the transforming device 50, and the control device 60 is configured to control the transforming device 50 to output a preset voltage. The preset voltage output by the voltage transformation device 50 is applied to the insulating rod 100 to be detected through the first conductive rod 20, the conductive hook 30 and the first fixing device 40. If the withstand voltage level of the insulating rod 100 does not reach the preset voltage, the insulating rod 100 is broken down, an arc may occur at a contact position of the insulating rod 100 and the first fixing device 40, and a local burning trace of the insulating rod 100 may occur. By observing the surface state of the insulation rod 100 after pressurization, it can be determined whether the insulation rod 100 reaches the preset voltage.

In the description herein, references to the description of "some embodiments," "other embodiments," "desired embodiments," etc., mean 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 invention. In this specification, a schematic description of the above terminology may not necessarily refer to the same embodiment or example.

The technical features of the above embodiments can be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the above embodiments are not described, but should be considered as the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only express several embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, which falls within the scope of protection of the present application. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims

1. An insulation rod withstand voltage measuring system is characterized by comprising:

a first conductive rod;

the conductive hook is hung on the first conductive rod;

the first fixing device is arranged on the conductive hook and used for fixing an insulating rod to be detected to the conductive hook, and the conductive hook is electrically connected with the insulating rod;

and the anode of the transformation device is connected with the first conducting rod, and the cathode of the transformation device is connected with the insulating rod.

2. The dielectric withstand voltage measuring system of claim 1, further comprising:

and two ends of the first wire are respectively connected with the negative electrode of the voltage transformation device and the insulating rod, and the first wire is grounded.

3. The dielectric withstand voltage measuring system of claim 2, further comprising:

and the second fixing device is arranged on the first lead and is used for electrically connecting the first lead with the insulating rod.

4. The dielectric rod withstand voltage measuring system according to claim 3, wherein the conductive hooks are provided with a plurality of the first fixing means at intervals, each of the first fixing means being for fixing one of the dielectric rods.

5. The dielectric rod withstand voltage measuring system according to claim 4, wherein two conductive hooks are provided, two conductive hooks are spaced apart from each other and are attached to the first conductive rod, one first fixing means of one conductive hook and one first fixing means of the other conductive hook are used to fix one dielectric rod together, and the second fixing means is connected to the dielectric rod.

6. The dielectric rod withstand voltage measuring system according to claim 4, wherein a contact point of the second fixing means with the dielectric rod is located between two of the first fixing means that are in contact with the dielectric rod.

7. The dielectric withstand voltage measuring system of claim 4, wherein the first wire is provided with at least one of the second fixing means at intervals.

8. The dielectric withstand voltage measuring system of claim 1, further comprising:

and the supporting device is used for supporting the first conducting rod so that the first conducting rod is spaced from the ground by a set distance.

9. The dielectric withstand voltage measuring system of claim 4, wherein the conductive hook comprises:

the hook part is used for being hung on the first conducting rod;

the guide rod part is connected with the tail end of the hook part, and at least one first fixing device is arranged on the guide rod part at intervals.

10. The dielectric withstand voltage measuring system of claim 1, further comprising:

and the insulating pad is laid on the ground opposite to the conductive hook.

11. The dielectric withstand voltage measuring system of claim 3, wherein the second fixing means comprises a conductive jig or a conductive hook.

12. The dielectric withstand voltage measuring system of claim 1, further comprising:

and the control device is connected with the voltage transformation device and is used for controlling the voltage transformation device to output a preset voltage.