Testing equipment

Abstract

To provide a test device capable of smoothly executing a withstand voltage test of an insulating operation rod.SOLUTION: A test device 1 is for a withstand voltage test of an insulating operation rod A to / from which a tip tool can be attached / detached. The insulating operation rod A comprises an insulating grip part to be gripped by an operator, and a conductive tool attachment / detachment part A2 to / from which the tip tool can be attached / detached. The tip tool includes: a rod-side attachment part 3 that has an electric connection part electrically connected to the tool attachment / detachment part A2, in a state of being attached to the tool attachment / detachment part A2, and that can be attached to the tool attachment / detachment part A2 and / or the electric connection part of the tip tool attached to the tool attachment / detachment part A2; and an application-side attachment part 2 that can be attached to application means for applying a test voltage to the insulating operation rod A, where the rod-side attachment part 3 and the application-side attachment part 2 are electrically connected.SELECTED DRAWING: Figure 5

Description

Technical Field

[0001] The present invention relates to a test instrument used for the withstand voltage test of an insulating operating rod.

Background Art

[0002] Conventionally, as an example of an insulating operating rod, a shared operating rod of an indirect live-line tool used in the indirect live-line work described in Patent Document 1 is known. The indirect live-line work is work performed while being in an energized state using the indirect live-line tool, and the indirect live-line tool is configured to attach various tip tools to the tip of the shared operating rod. In such indirect live-line work, since work is performed in an energized state, there is a risk of electric shock if an operator gets too close to an energized object such as an electric wire. For this reason, a safety limit collar is provided at a position a predetermined length away from the tip on the shared operating rod, and the operator is prevented from grasping the tip side of the safety limit collar.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] By the way, in order to confirm that an operator does not get an electric shock through the shared operating rod during the indirect live-line work, a withstand voltage test (also referred to as an insulation withstand test) is performed on the shared operating rod. This test is performed by winding the shared operating rod around an iron wire and fixing it to a voltage application unit capable of applying a test voltage, and applying a test voltage to the shared operating rod through the voltage application unit.

[0005] However, in such a conventional withstand voltage test, there is a problem that the winding work of the iron wire takes time and it is troublesome to fix the shared operating rod.

[0006] Therefore, the present invention aims to provide a test apparatus that can smoothly perform a dielectric strength test on an insulated operating rod. [Means for solving the problem]

[0007] The present invention relates to a test apparatus for withstanding voltage tests of an insulated operating rod with a detachable tip tool, wherein the insulated operating rod has an insulating gripping portion for gripping by an operator and a conductive tool attachment portion from which the tip tool can be attached and detached, the tip tool has an electrical connection portion that is electrically connected to the tool attachment portion when attached to the tool attachment portion, the rod-side mounting portion that can be attached to the tool attachment portion and / or the electrical connection portion of the tip tool attached to the tool attachment portion, and the application-side mounting portion that can be attached to an application means for applying a test voltage to the insulated operating rod, the rod-side mounting portion and the application-side mounting portion are electrically connected.

[0008] According to the above configuration, the rod-side mounting portion is attached to the tool attachment / detachment portion of the insulated operating rod and / or the electrical connection portion of the tip tool attached to the tool attachment / detachment portion, and the application-side mounting portion is attached to the application means, thereby electrically connecting the insulated operating rod to the application means, and performing a withstand voltage test by applying a test voltage to the insulated operating rod from the application means.

[0009] Furthermore, in the present invention, the application-side mounting portion comprises an application extension portion that extends in the height direction along the axial direction of the insulating operating rod to which the rod-side mounting portion is attached, and an application mounting body portion provided at the tip of the application extension portion in the height direction and attached so as to be in electrical contact with the application means, wherein the application mounting body portion may be attached to the application means in the height direction.

[0010] According to the above configuration, when the rod-side mounting portion is attached to the tool attachment / detachment portion and / or the electrical connection portion, the application mounting body portion can be positioned on the axial extension of the insulating operating rod, and the application mounting body portion can be attached to the application means by operating the insulating operating rod in the axial direction, making it easy to electrically connect the insulating operating rod to the application means.

[0011] Furthermore, in the present invention, the application extension portion may function as an application guide portion that guides the attachment of the application mounting body portion to the application means.

[0012] According to the above configuration, the application guide portion can guide the attachment of the application mounting body to the application means, so the application mounting body can be easily attached to the application means.

[0013] Furthermore, in the present invention, the rod-side mounting portion may have a rod mounting body portion configured to be attachable to the tool attachment / detachment portion and / or the electrical connection portion along the radial direction of the insulating operating rod, and the application-side mounting portion may have an application mounting body portion configured to be attachable to the application means in the height direction along the axial direction of the insulating operating rod to which the rod mounting body portion is attached.

[0014] According to the above configuration, the rod mounting body can be attached to the insulating operating rod in the radial direction, and the application mounting body can be attached to the application means in the height direction, making it easier to attach the insulating operating rod to the application means using the test equipment.

[0015] Furthermore, in the present invention, the rod-side mounting portion includes a rod extension portion that extends along a plane perpendicular to the height direction, the rod mounting body portion is positioned at the extended end of the rod extension portion, and the rod extension portion may function as a rod guide portion that guides the attachment of the rod mounting body portion to the tool attachment / detachment portion and / or the electrical connection portion.

[0016] According to the above configuration, since the rod guide portion can guide the attachment of the rod attachment main body portion to the tool attachment / detachment portion and / or the electrical connection portion, the rod attachment main body portion can be easily attached to the tool attachment / detachment portion and / or the electrical connection portion.

Advantages of the Invention

[0017] As described above, according to the present invention, by attaching the rod-side attachment portion to the tool attachment / detachment portion of the insulating operation rod and / or the electrical connection portion of the tip tool attached to the tool attachment / detachment portion, and attaching the application-side attachment portion to the application means, the insulating operation rod can be electrically connected to the application means, and a withstand voltage test can be performed by applying a test voltage from the application means to the insulating operation rod. Therefore, the withstand voltage test of the insulating operation rod can be smoothly performed.

Brief Description of the Drawings

[0018] [Figure 1] FIG. 1 shows a front view of a test instrument according to an embodiment of the present invention. [Figure 2] FIG. 2 shows a plan view of the test instrument according to the same embodiment. [Figure 3] FIG. 3 shows a front view of an insulating operation rod. <00OO080>FIG. 4 is a view showing the tool attachment / detachment portion of the insulating operation rod and the tip tool. [Figure 5] FIG. 5 shows a front view of the test instrument attached to the insulating operation rod. [Figure 6] FIG. 6 shows a plan view of the test instrument attached to the insulating operation rod. [[ID=D31]] [Figure 7a] FIG. 7a is a front view showing a test instrument according to another embodiment. [Figure 7b] FIG. 7b is a plan view showing a test instrument according to another embodiment. [Figure 8a] FIG. 8a is a front view showing a test instrument according to another embodiment. [Figure 8b] FIG. 8b is a plan view showing a test instrument according to another embodiment.

Embodiments for Carrying Out the Invention

[0019] Hereinafter, the test instrument 1 according to an embodiment of the present invention will be described.

[0020] In the following description, the height direction of the test instrument 1 is defined as the "height direction X", the width direction of the test instrument 1 is defined as the "width direction Y", and the thickness direction of the test instrument 1 is defined as the "thickness direction Z". For the sake of convenience of explanation, one side X1 of the height direction X is set as the upper side in FIG. 1, and the other side X2 of the height direction X is set as the lower side in FIG. 1. Also, one side Y1 of the width direction Y is set as the left side in FIG. 1, and the other side Y2 of the width direction Y is set as the right side in FIG. 1. Further, one side Z1 of the thickness direction Z is set as the upper side in FIG. 2, and the other side Z2 of the thickness direction Z is set as the lower side in FIG. 2. The height direction X, the width direction Y, and the thickness direction Z are orthogonal to each other.

[0021] In addition, separately from each direction in the test instrument 1, when explaining the insulating operating rod A and the tip tool B, the length direction of each is defined as the "axial direction x", and the radial direction of each is defined as the "radial direction y". In this embodiment, the axial direction x and the radial direction y are orthogonal to each other. For the sake of convenience of explanation, one side x1 of the axial direction x is set as the upper side in FIG. 3, and the other side x2 of the axial direction x is set as the lower side in FIG. 3.

[0022] The test instrument 1 is for a withstand voltage test on the insulating operating rod A. Specifically, as shown in FIG. 5, the test instrument 1 is used when connecting the insulating operating rod A to the applying means W. The applying means W is for applying a test voltage to the insulating operating rod A. Examples of the applying means W include an iron rod and an electric wire. Therefore, the applying means W has conductivity.

[0023] For the sake of convenience of explanation, first, the insulating operating rod A will be described using FIGS. 3 and 4.

[0024] The insulated operating rod A is used in indirect live-line work, where the worker performs work on a charged area such as an electric wire from a remote position without directly touching the charged area. The charged area is assumed to include the application means W. As shown in Figure 3, the insulated operating rod A comprises an operating rod body A1 and a tool attachment / detachment part A2.

[0025] The operating rod body A1 is formed in a cylindrical shape (specifically, a cylindrical shape) that extends in the axial direction x. The operating rod body A1 is insulating. The operating rod body A1 includes a gripping portion A10 for the operator to grasp, and a separation portion A12 for separating the gripping portion A10 from the tool attachment / detachment portion A2, which will be described later, in the axial direction x.

[0026] The gripping portion A10 is the part that the operator holds with their hand when holding the insulated operating rod A. The gripping portion A10 is formed in a cylindrical shape (specifically, a cylindrical shape) that extends in the axial direction x. The outer surface of the gripping portion A10 is made of an electrically insulating material (for example, FPR). Therefore, the gripping portion A10 has insulating properties. The gripping portion A10 of this embodiment is provided with a frustoconical flange portion A11. This flange portion A11 is intended to indicate to the operator that they should not grip the gripping portion on one side x1 beyond the flange portion A11 in the axial direction x. The flange portion A11 is located at the tip of one side x1 in the axial direction x of the gripping portion A10.

[0027] The separation portion A12 is configured as a cylindrical shape (specifically, a cylindrical shape) extending in the axial direction x. The separation portion A12 is insulating. The separation portion A12 is located on one side x1 in the axial direction x of the gripping portion A10. In this embodiment, the separation portion A12 is connected to the gripping portion A10 in the axial direction x. The separation portion A12 is longer than the gripping portion A10 in the axial direction x. A head portion A13 is formed at the tip of one side x1 in the axial direction x of the separation portion A12. This head portion A13 is configured to have a larger diameter than the separation portion A12.

[0028] The tool attachment / detachment section A2 is used when attaching the tip tool B to the insulated operating rod A. This tool attachment / detachment section A2 is electrically conductive. In this embodiment, the tool attachment / detachment section A2 is made of metal. The tool attachment / detachment section A2 extends in the axial direction x.

[0029] As shown in Figures 3 and 4, the tool attachment / detachment section A2 is provided at the tip of one side x1 in the axial direction x of the operating rod body A1. In this embodiment, the tool attachment / detachment section A2 is provided on the head section A13. Therefore, the tool attachment / detachment section A2 constitutes the tip of one side x1 in the axial direction x of the insulated operating rod A. Thus, the tool attachment / detachment section A2 is positioned on one side x1 in the axial direction x of the insulated operating rod A, relative to the gripping section A10. The tool attachment / detachment section A2 comprises a base section A20, a tool fixing section A23, and a connecting section A26 that connects the base section A20 and the tool fixing section A23 in the axial direction x.

[0030] The base portion A20 is the base end of the tool attachment / detachment portion A2 in the axial direction x. The base portion A20 is configured as a rod extending in the axial direction x. In this embodiment, the base portion A20 comprises a rod-shaped small-diameter base portion A21 and a rod-shaped large-diameter base portion A22 which has a larger diameter than the small-diameter base portion A21.

[0031] The small-diameter base portion A21 is connected to the head portion A13 in the axial direction x. In this embodiment, the small-diameter base portion A21 has a smaller diameter than the head portion A13. Therefore, the tip of the head portion A13 in the axial direction X is formed with a step that is radially outward relative to the small-diameter base portion A21.

[0032] The large-diameter base portion A22 is positioned on one side x1 of the small-diameter base portion A21 in the axial direction x. Specifically, the large-diameter base portion A22 is connected to the small-diameter base portion A21 in the axial direction x. Therefore, in the base portion A20, which is the base end in the axial direction x of the tool attachment / detachment portion A2, the large-diameter base portion A22 is configured as the end (tip) on one side x1 in the axial direction x, and the small-diameter base portion A21 is configured as the end (base end) on the other side x2 in the axial direction x. The base end of the large-diameter base portion A22 in the axial direction x is stepped and radially outward relative to the small-diameter base portion A21. In the large-diameter base portion A22 of this embodiment, the base end surface A220 in the axial direction x is configured as a planar shape along the radial direction y. In the large-diameter base portion A22 of this embodiment, the tip surface A221 in the axial direction x is also a planar shape along the radial direction y. In this embodiment, the large-diameter base portion A22 is longer than the small-diameter base portion A21 in the axial direction x.

[0033] The tool fixing section A23 is the part for fixing the tip tool B, which will be described later, to the insulated operating rod A. The tool fixing section A23 is the tip of the tool attachment / detachment section A2 in the axial direction x. In this embodiment, the tool fixing section A23 comprises a screw fixing section A24 and a cylindrical (specifically, cylindrical) fixing reinforcement section A25 which has a larger diameter than the screw fixing section A24.

[0034] The screw fixing portion A24 is the part of the tool fixing portion A23 to which the tip tool B, described later, can be fixed. The screw fixing portion A24 is conductive. The screw fixing portion A24 is configured as a rod shape (specifically, a circular rod shape) extending in the axial direction x. Furthermore, the screw fixing portion A24 in this embodiment is configured as a male screw. Therefore, the tip tool B, described later, is attached to the insulated operating rod A by screwing the screw fixing portion A24 into the female screw B20, described later. Thus, the insulated operating rod A (specifically, the tool attachment / detachment portion A2) is capable of attaching and detaching the tip tool B.

[0035] The fixing reinforcement part A25 is conductive. The fixing reinforcement part A25 is configured as a cylindrical shape (specifically, a cylindrical shape) with a larger diameter on its outer surface than the screw fixing part A24. The fixing reinforcement part A25 has an internal thread formed on its inner surface and is screwed into the screw fixing part A24, which is configured as an external thread. Specifically, as shown in Figure 3, the fixing reinforcement part A25 that screws into the screw fixing part A24 is positioned on the other side x2 of the end (tip) of one side x1 in the axial direction x of the screw fixing part A24. In this embodiment, the outer surface of the fixing reinforcement part A25 is knurled (specifically, flat knurling).

[0036] In the tool fixing portion A23, which is the tip of the tool attachment / detachment portion A2 in the axial direction x, the screw fixing portion A24 is configured as one end (tip) x1 in the axial direction x, and the fixing reinforcement portion A25 is configured as the other end (base end) x2 in the axial direction x. In this embodiment, the base end surface A250 of the fixing reinforcement portion A25 in the axial direction x is configured to be planar along the radial direction y. Therefore, the base end surface A250 of the fixing reinforcement portion A25 in the axial direction x is positioned opposite the tip surface A221 of the large diameter base portion A22 in the axial direction x. In this embodiment, the tip surface A251 of the fixing reinforcement portion A25 in the axial direction x is also planar along the radial direction y.

[0037] The connecting portion A26 is configured as a rod-shaped (specifically, circular rod-shaped) structure extending in the axial direction x. As shown in Figures 3 and 4, the connecting portion A26 has a smaller diameter than the base portion A20 (specifically, the large-diameter base portion A22) and the tool fixing portion A23 (specifically, the fixing reinforcement portion A25). The connecting portion A26 is connected to the tool fixing portion A23 and the base portion A20 in the axial direction x. Specifically, in this embodiment, the connecting portion A26 is connected to the tip surface A221 of the large-diameter base portion A22 in the axial direction x, and also to the base end surface A250 of the fixing reinforcement portion A25 in the axial direction x. Therefore, the tip surface A221 of the large-diameter base portion A22 in the axial direction x and the base end surface A250 of the fixing reinforcement portion A25 in the axial direction x are stepped outward relative to the connecting portion A26. Therefore, the tool attachment / detachment section A2 is provided with a recess A27 that is recessed in the radial direction y, between the base end and tip end in the axial direction x, and is composed of the tip surface A221 of the large-diameter base section A22 in the axial direction x, the base end surface A250 of the fixing reinforcement section A25 in the axial direction x, and the connecting section A26. This recess A27 has a smaller diameter than the base end and tip end of the tool attachment / detachment section A2 in the axial direction x. Note that the connecting section A26 in this embodiment is shorter in the axial direction x than the tool fixing section A23 and the base section A20. Therefore, the recess A27 in this embodiment is shorter in the axial direction x than the base end and tip end of the tool attachment / detachment section A2 in the axial direction x.

[0038] Next, we will explain the tip tool B using Figure 4.

[0039] The tip tool B is used by being attached to the insulated operating rod A. The tip tool B is a tool used for indirect live-line work, and examples include binding punches, voltage detectors, and clamps. As shown in Figure 4, the tip tool B in this embodiment is a voltage detector (specifically, a 22kV voltage detector). The tip tool B comprises a tool body B1 and an operating rod mounting part B2.

[0040] The tool body B1 of this embodiment includes a contact portion B10 configured to be able to contact a charged area, and a voltage detection portion B11 that checks whether or not the charged area is charged.

[0041] The contact portion B10 is conductive. In this embodiment, the contact portion B10 is made of a metal rod. The contact portion B10 extends in the axial direction x. The voltage detection portion B11 is connected to the other side x2 of the contact portion B10 in the axial direction x. The outer surface of the voltage detection portion B11 is provided with a notification means B12 (for example, a speaker that emits sound or an LED lamp that emits light) that notifies that a charged area is charged. The voltage detection portion B11 is electrically connected to the contact portion B10.

[0042] The operating rod mounting portion B2 is used when attaching the tip tool B to the insulated operating rod A. The operating rod mounting portion B2 is conductive. In this embodiment, the operating rod mounting portion B2 is provided with a female thread B20 that can be screwed into a screw fixing portion A24 which is configured as a male thread. Therefore, the tip tool B is configured to be detachably attached to the insulated operating rod A (specifically, the tool attachment / detachment portion A2). The operating rod mounting portion B2 is located on the other side x2 of the tool body B1 in the axial direction x. In this embodiment, the operating rod mounting portion B2 is provided on the base end face (not numbered) in the axial direction x of the tool body B1 (specifically, the voltage detection portion B11). Therefore, the operating rod mounting portion B2 extends in the axial direction x from the base end face in the axial direction x of the voltage detection portion B11. In this embodiment, the base end face (not numbered) of the operating rod mounting portion B2 in the axial direction x is planar along the radial direction y. Therefore, when the tip tool B is attached to the insulated operating rod A by screwing together the female thread B20 provided on the operating rod mounting portion B2 and the screw fixing portion A24 which is configured as a male thread, the base end surface of the operating rod mounting portion B2 in the axial direction x contacts the tip surface A251 of the fixing reinforcement portion A25 in the axial direction x. As shown in Figure 4, in this embodiment, the female thread B20 provided on the operating rod mounting portion B2 is provided so as to extend to the voltage detection portion B11 in the axial direction x. The operating rod mounting portion B2 in this embodiment has a smaller diameter than the voltage detection portion B11 and the fixing reinforcement portion A25.

[0043] As described above, the screw fixing part A24 is conductive. Therefore, when the female screw B20 provided on the operating rod mounting part B2 is screwed into the screw fixing part A24, which is configured as a male screw, and the tip tool B and the insulated operating rod A are attached, the operating rod mounting part B2 and the tool attachment / detachment part A2 are electrically connected. Thus, in this embodiment, the operating rod mounting part B2 is configured as an electrical connection part that electrically connects to the tool attachment / detachment part A2 when it is attached to the tool attachment / detachment part A2.

[0044] By screwing together the female thread B20 provided on the operating rod mounting portion B2 and the screw fixing portion A24, which is configured as a male thread, the base end surface and tip surface A251 of the operating rod mounting portion B2 come into contact in the axial direction x. Therefore, when the tip tool B and the insulated operating rod A are attached, a recess B21 is formed by the base end surface of the tool body B1 (specifically, the voltage detection portion B11) in the axial direction x, the operating rod mounting portion B2 and tip surface A251, which are recessed in the radial direction y.

[0045] Next, the test apparatus 1 will be described using Figures 1, 2, and 5. The test apparatus 1 includes an application-side mounting part 2 and a rod-side mounting part 3.

[0046] The application-side mounting portion 2 is used when connecting the test device 1 to the application means W. In this embodiment, the application-side mounting portion 2 is made of a metal rod-shaped body. Therefore, the application-side mounting portion 2 is conductive. As shown in Figure 1, the application-side mounting portion 2 in this embodiment comprises an application mounting main body portion 20 and an application extension portion 21.

[0047] The application mounting body portion 20 is the part that is attached to the application means W so as to be in electrical contact with it. As shown in Figures 1 and 2, the application mounting body portion 20 extends in the width direction Y. The application mounting body portion 20 of this embodiment is configured to be convex toward one side X1 in the height direction X so that the other side X2 in the height direction X is open. Specifically, the application mounting body portion 20 of this embodiment is curved toward one side X1 in the height direction X. Therefore, the opening portion 20a formed by the curved application mounting body portion 20 is configured to open toward the other side X2 in the height direction X. In addition, in the application mounting body portion 20 of this embodiment, the length in the width direction Y is longest at the end (base end) of the other side X2 in the height direction X, and the length in the width direction Y is shortest at the end (tip) of one side X1 in the height direction X. Furthermore, the application mounting body portion 20 is arranged on a plane that extends in the height direction X and the width direction Y. Furthermore, in the application mounting body 20, the length in the width direction Y of the base end in the height direction X is longer than the length in the width direction Y of the application means W. Therefore, the length in the width direction Y of the opening 20a is longer than that of the application means W. Thus, the application mounting body 20 of this embodiment is configured to be attachable by hooking onto the application means W. Therefore, the application side mounting part 2 can be attached to the application means W. In addition, in the application mounting body 20 of this embodiment, a cap K1 made of rubber is attached to one end Y1 in the width direction Y.

[0048] The application extension portion 21 is for guiding the attachment of the application mounting body portion 20 to the application means W. Therefore, the application extension portion 21 functions as an application guide portion. The application extension portion 21 also functions as a connecting portion when connecting the rod-side mounting portion 3, which will be described later, to the application-side mounting portion 2. The application extension portion 21 is configured as a rod shape extending in the height direction X. As shown in Figure 1, the application extension portion 21 of this embodiment extends straight along the height direction X. The application extension portion 21 is located on the other side X2 in the height direction X from the application mounting body portion 20. The application extension portion 21 of this embodiment is connected to the base end of the application mounting body portion 20 in the height direction X. In other words, the application mounting body portion 20 is provided at the end (tip) of one side X1 in the height direction X of the application extension portion 21. That is, the application extension portion 21 extends from the opening portion 20a formed by the curved application mounting body portion 20 to the other side X2 in the height direction X. Furthermore, the application extension portion 21 of this embodiment is connected to the other side Y2 in the width direction Y of the application mounting body portion 20. In this embodiment, a cap K2 made of rubber is attached to the base end of the other side X2 in the height direction X of the application extension portion 21.

[0049] In this embodiment, the application extension portion 21 and the application mounting body portion 20 are constructed by bending a metal rod-shaped body (specifically, a circular rod-shaped body). Furthermore, as shown in Figure 1, the application-side mounting portion 2 in this embodiment is arranged on a plane that extends in the height direction X and the width direction Y.

[0050] The rod-side mounting portion 3 is used when attaching the test instrument 1 to the insulated operating rod A and / or the tip tool B attached to the insulated operating rod A. The rod-side mounting portion 3 in this embodiment is made of a metal rod-shaped body. Therefore, the rod-side mounting portion 3 is conductive. Furthermore, the rod-side mounting portion 3 in this embodiment is made of a rod-shaped body with a smaller diameter than the rod-shaped body that constitutes the application-side mounting portion 2. The rod-side mounting portion 3 in this embodiment comprises a rod mounting body portion 30 and a rod extension portion 31.

[0051] The rod mounting body 30 is for attachment to the tool attachment / detachment section A2 and / or the electrical connection section. The rod mounting body 30 in this embodiment is configured in an annular shape that opens toward one side Y1 in the width direction Y. Also, as shown in Figure 2, the rod mounting body 30 in this embodiment is arranged on a plane that extends in the width direction Y and the thickness direction Z.

[0052] An opening 30a is formed by the annular rod mounting body 30. This opening 30a is configured to open toward one side Y1 in the width direction Y. The length of the opening 30a in the width direction Y and thickness direction Z is longer than the length in the radial direction y of the connecting part A26 and the operating rod mounting part B2. Therefore, the rod mounting body 30 of this embodiment is configured to allow the attachment of the tool attachment part A2 and / or the electrical connection part. On the other hand, the length of the opening 30a in the width direction Y and thickness direction Z is shorter than the length in the radial direction y of the large diameter base part A22, the fixing reinforcement part A25 and the tool body B1 (specifically, the voltage detection part B11). In this embodiment, the length in the thickness direction Z is shortest at the end (base end) of one side Y1 in the width direction Y, and the length in the thickness direction Z increases toward the other side Y2 in the width direction Y.

[0053] The rod extension section 31 is for guiding the attachment of the rod mounting body section 30 to the tool attachment / detachment section A2 and / or the electrical connection section. Therefore, the rod extension section 31 functions as a rod guide section. The rod extension section 31 extends along a plane formed by the width direction Y and the thickness direction Z, which are perpendicular to the height direction X. The rod extension section 31 of this embodiment comprises an extension body section 310, a guide extension section 311, and a connecting extension section 312.

[0054] The extension body portion 310 extends in a direction perpendicular to the height direction X. The extension body portion 310 in this embodiment extends in the width direction Y. Furthermore, the extension body portion 310 in this embodiment is inclined toward the other side Z2 in the thickness direction Z as it progresses from one side Y1 to the other side Y2 in the width direction Y. The length of the extension body portion 310 in the width direction Y is longer than the length of the rod mounting body portion 30 in the width direction Y. The extension body portion 310 is positioned on one side Y1 in the width direction Y than the rod mounting body portion 30. The extension body portion 310 in this embodiment is connected to the rod mounting body portion 30 in the width direction Y.

[0055] The guide extension 311 extends in the same direction as the extension body 310. Therefore, the guide extension 311 in this embodiment extends in the width direction Y. Furthermore, the guide extension 311 is positioned opposite the extension body 310 in a direction perpendicular to the extension direction of the extension body 310. Therefore, the guide extension 311 in this embodiment faces the extension body 310 in the thickness direction Z. The guide extension 311 in this embodiment is positioned on the other side Z2 in the thickness direction Z from the extension body 310. Specifically, the guide extension 311 is connected to the rod mounting body 30. Therefore, the rod extension 31 in this embodiment is positioned on one side Y1 in the width direction Y from the rod mounting body 30.

[0056] In this embodiment, the length of the guide extension 311 in the width direction Y is approximately the same as the length of the extension body 310 in the width direction Y. In addition, the guide extension 311 in this embodiment is inclined toward one side Z1 in the thickness direction Z as it progresses from one side Y1 in the width direction Y to the other side Y2. Therefore, the rod-side mounting portion 3 in this embodiment is provided with a region 31a formed by the extension body 310 and the guide extension 311. Here, the distance between the extension body 310 and the guide extension 311 in the thickness direction Z is longest at the tip of one side Y1 in the width direction Y, gradually decreases as it progresses from one side Y1 to the other side Y2 in the width direction Y, and is shortest at the base end of the other side Y2 in the width direction Y. Thus, the region 31a is configured such that it is longest on one side Y1 in the width direction Y, and gradually decreases in the thickness direction Z as it progresses from one side Y1 to the other side Y2 in the width direction Y. Furthermore, this region 31a opens toward one side Y1 in the width direction Y, and the other side Y2 in the width direction Y communicates with the opening 30a. In addition, the length of region 31a in the thickness direction Z is longer than the length in the radial direction Y of the connecting portion A26 and the operating rod mounting portion B2. In this embodiment, the length in the thickness direction Z at the base end of the other side Y2 in the width direction Y of region 31a is shorter than the length in the thickness direction Z of the opening 30a. Note that in this embodiment, the length of region 31a in the width direction Y is shorter than the length of the opening 30a in the width direction Y.

[0057] In this embodiment, the extension body portion 310 and the guide extension portion 311 are positioned on one side Y1 of the rod mounting body portion 30 in the width direction Y. Therefore, the extension body portion 310 and the guide extension portion 311 in this embodiment extend from the opening portion 30a that opens toward one side Y1 in the width direction Y to one side Y1 in the width direction Y. The ends (extension tips) of the extension body portion 310 and the guide extension portion 311 on the other side Y2 in the width direction Y are connected to the rod mounting body portion 30. In other words, the rod mounting body portion 30 is positioned at the extension tip of the rod extension portion 31 (specifically, the extension body portion 310 and the guide extension portion 311).

[0058] The guide extension portion 311 is provided with an extension shaft portion 313 that extends in a direction perpendicular to the direction in which the guide extension portion 311 extends. In this embodiment, the extension shaft portion 313 extends in the thickness direction Z. Specifically, the extension shaft portion 313 is provided at one end (tip) of the guide extension portion 311 in the width direction Y1, and extends from the guide extension portion 311 to the other side Z2 in the thickness direction Z.

[0059] The connecting extension portion 312 extends in a direction perpendicular to the direction in which the extension body portion 310 extends. In this embodiment, the connecting extension portion 312 extends in the thickness direction Z. The connecting extension portion 312 is provided on the extension body portion 310. Specifically, in this embodiment, the connecting extension portion 312 extends from one end (tip) Y1 in the width direction Y of the extension body portion 310 to one side Z1 in the thickness direction Z. In this embodiment, the length of the connecting extension portion 312 in the thickness direction Z is shorter than the length of the extension body portion 310 in the width direction Y.

[0060] In this embodiment, the rod-side mounting portion 3 and the rod extension portion 31 are formed by bending a metal rod-shaped body (specifically, a circular rod-shaped body). Furthermore, as shown in Figure 2, the rod-side mounting portion 3 in this embodiment is arranged on a plane that extends in the width direction Y and the thickness direction Z.

[0061] The application-side mounting portion 2 and the rod-side mounting portion 3 are attached. In this embodiment, the application-side mounting portion 2 is positioned on a plane extending in the height direction X and the width direction Y, and the rod-side mounting portion 3 is positioned on a plane extending in the width direction Y and the thickness direction Z. Specifically, the rod extension portion 31 and the application extension portion 21 as a connecting portion are attached. As shown in Figure 1, the rod extension portion 31 in this embodiment is attached between the base end and the tip end of the application extension portion 21 in the height direction X.

[0062] As shown in Figure 2, in this embodiment, the extension body portion 310 is brought into contact with the applied extension portion 21 from the other side Z2 in the thickness direction Z, and the connecting extension portion 312 is brought into contact with the applied extension portion 21 from the one side Y1 in the width direction Y. In this embodiment, the extension body portion 310 and the connecting extension portion 312 are fixed to the applied extension portion 21 by solder. In this embodiment, copper wire C is wrapped around the rod extension portion 31 and the applied extension portion 21. The test apparatus 1 is constructed by attaching the rod-side mounting portion 3 and the applied-side mounting portion 2 in this way. Therefore, the conductive rod-side mounting portion 3 and the applied-side mounting portion 2 are electrically connected.

[0063] As shown in Figure 2, when the rod-side mounting portion 3 and the application-side mounting portion 2 are attached to form the test apparatus 1, the rod mounting body portion 30 of this embodiment is positioned on the other side Z2 in the thickness direction Z than the application-side mounting portion 2. Furthermore, the rod mounting body portion 30 of this embodiment is positioned on the other side Y2 in the width direction Y than the application-side mounting portion 2. Moreover, the rod mounting body portion 30 of this embodiment is positioned on the other side X2 in the height direction X than the application-side mounting body portion 20. Therefore, the rod mounting body portion 30 of this embodiment opens toward the application-side mounting body portion 20 in the width direction Y and is positioned below the application-side mounting body portion 20. Consequently, the rod-side mounting portion 3 of this embodiment is positioned on the other side X2 in the height direction X than the application-side mounting body portion 20.

[0064] The above describes the configuration of the test apparatus 1 according to this embodiment. Next, a connection method for connecting the insulating operating rod A to the application means W using the test apparatus 1 of this embodiment for a dielectric strength test of the insulating operating rod A will be described. In this connection method, the insulating operating rod A is connected to the application means W by performing an insulating connection step of connecting the test apparatus 1 to the insulating operating rod A or the tip tool B attached to the insulating operating rod A, and an application connection step of connecting the test apparatus 1 to the application means W. Therefore, this connection method comprises an insulating connection step and an application connection step.

[0065] First, the insulating connection process will be explained. Initially, the case of connecting the test device 1 to the insulating operating rod A will be described. In this case, the tip tool B may or may not be attached to the insulating operating rod A. When electrically connecting the test device 1 to the insulating operating rod A, first, the height direction X is aligned with the axial direction x, and the width direction Y and thickness direction Z are aligned with the radial direction y. Specifically, one side X1 in the height direction X is aligned with one side x1 in the axial direction x, and the other side X2 in the height direction X is aligned with the other side x2 in the axial direction x.

[0066] Next, the rod-side mounting portion 3 is attached to the tool attachment / detachment portion A2. In this embodiment, the rod mounting body portion 30 is placed over the recess A27. Here, the length of region 31a in the thickness direction Z is longer than the length of the connecting portion A26 in the radial direction y. Also, the length of the opening portion 30a in the width direction Y and thickness direction Z is longer than the length of the connecting portion A26 in the radial direction y. Furthermore, region 31a opens toward one side Y1 in the width direction Y, and the other side Y2 in the width direction Y communicates with the opening portion 30a. Therefore, by moving the rod-side mounting portion 3 from the other side Y2 to the one side Y1 in the width direction Y relative to the tool attachment / detachment portion A2, the connecting portion A26 is passed through region 31a to the opening portion 30a. In particular, in this embodiment, the longest side of region 31a is Y1 in the width direction Y. Therefore, it is easy to pass the connecting portion A26 through region 31a.

[0067] Furthermore, the length of the opening 30a in the width direction Y and thickness direction Z is shorter than the length in the radial direction y of the large-diameter base portion A22 and the fixing reinforcement portion A25. Therefore, when the connecting portion A26 is passed through the opening 30a, the rod mounting body portion 30 is positioned to abut against the large-diameter base portion A22 and the fixing reinforcement portion A25 in the axial direction x. Thus, the large-diameter base portion A22 and the fixing reinforcement portion A25 prevent the rod mounting body portion 30 from coming out of the recess A27 in the axial direction x. In this way, by the rod mounting body portion 30 being placed over the recess A27 in the width direction Y, the rod-side mounting portion 3 is attached to the tool attachment / detachment portion A2. Therefore, the test instrument 1 is connected to the insulated operating rod A. In addition, the rod-side mounting portion 3 attached to the tool attachment / detachment portion A2 abuts against the conductive tool attachment / detachment portion A2, thereby electrically connecting the rod-side mounting portion 3 and the tool attachment / detachment portion A2.

[0068] In this embodiment, the rod extension portion 31 is positioned on one side Y1 in the width direction Y relative to the rod mounting body portion 30. Specifically, in the rod extension portion 31 of this embodiment, the extension body portion 310 and the guide extension portion 311, which are opposite each other in the thickness direction Z, extend in the width direction Y. Therefore, when the connecting portion A26 is passed through the opening portion 30a via region 31a, the connecting portion A26 is guided in the width direction Y by the extension body portion 310 and the guide extension portion 311, respectively, on one side Z1 and the other side Z2 in the thickness direction Z. Thus, the rod extension portion 31, which functions as a rod guide, guides the attachment of the rod mounting body portion 30 to the tool attachment / detachment portion A2. In particular, in this embodiment, the guide extension portion 311 reinforces the guidance in the width direction Y by the extension body portion 310 by guiding the connecting portion A26 in the width direction Y from the other side Z2 in the thickness direction Z. Furthermore, as described above, in this embodiment, the extended main body portion 310 and the guide extension portion 311 face each other in the thickness direction Z. Therefore, when the connecting portion A26 is passed through the opening portion 30a via region 31a, it is possible to prevent the connecting portion A26 from coming out of region 31a in the thickness direction Z.

[0069] As described above, in the insulating connection process, the rod-side mounting portion 3 is attached to the tool attachment / detachment portion A2, thereby connecting the test instrument 1 to the insulating operating rod A. Here, on the insulating operating rod A, the tool attachment / detachment portion A2 is located on one side x1 in the axial direction x relative to the gripping portion A10. Therefore, the test instrument 1 connected to the insulating operating rod A is located on one side x1 in the axial direction x relative to the gripping portion A10.

[0070] Furthermore, as described above, the application-side mounting portion 2 and the rod-side mounting portion 3 are attached to each other. Therefore, in the test device 1 connected to the insulated operating rod A, the application-side mounting portion 2 is positioned at the tip in the axial direction x. Specifically, the application mounting main body portion 20 is provided at one end (tip) of the application extension portion 21 in the height direction X, and the application extension portion 21 is connected to the base end of the application mounting main body portion 20 in the height direction X. Therefore, the application mounting main body portion 20 is positioned at the tip in the axial direction x, and the application extension portion 21 extends in the axial direction x at the tip in the axial direction x.

[0071] Next, we will explain the case where the test apparatus 1 is connected to the tip tool B attached to the insulating operating rod A, as part of the insulating connection process. In this case as well, first, the height direction X is aligned with the axial direction x, and the width direction Y and thickness direction Z are aligned with the radial direction y.

[0072] Next, the rod-side mounting portion 3 is attached to the operating rod mounting portion B2, which is configured as an electrical connection portion. In this embodiment, the rod mounting body portion 30 is placed over the recess B21. Here, the length of region 31a in the thickness direction Z is longer than the length of the operating rod mounting portion B2 in the radial direction y. Also, the length of the opening portion 30a in the width direction Y and the thickness direction Z is longer than the length of the operating rod mounting portion B2 in the radial direction y. Furthermore, region 31a opens toward one side Y1 in the width direction Y, and the other side Y2 in the width direction Y communicates with the opening portion 30a. Therefore, by moving the rod-side mounting portion 3 from the other side Y2 to the one side Y1 in the width direction Y relative to the operating rod mounting portion B2, the operating rod mounting portion B2 is passed through region 31a to the opening portion 30a.

[0073] Furthermore, the length of the opening 30a in the width direction Y and thickness direction Z is shorter than the length in the radial direction y of the fixing reinforcement part A25 and the tool body B1 (specifically, the voltage detection part B11). Therefore, when the operating rod mounting part B2 is passed through the opening 30a, the rod mounting body part 30 is positioned to abut against the fixing reinforcement part A25 and the tool body B1 in the axial direction x. Thus, the fixing reinforcement part A25 and the tool body B1 prevent the rod mounting body part 30 from coming out of the recess B21 in the axial direction x. In this way, by the rod mounting body part 30 being hooked onto the recess B21 in the width direction Y, the rod-side mounting part 3 is attached to the operating rod mounting part B2. Therefore, the test device 1 is attached to the tip tool B which is attached to the insulated operating rod A. In addition, the rod-side mounting part 3 attached to the operating rod mounting part B2 is electrically connected to the conductive operating rod mounting part B2, thereby electrically connecting the rod-side mounting part 3 and the operating rod mounting part B2.

[0074] When the operating rod mounting portion B2 is passed through the opening portion 30a via region 31a, the operating rod mounting portion B2 is guided in the width direction Y by the extended main body portion 310 and the guide extension portion 311, respectively, on one side Z1 and the other side Z2 in the thickness direction Z. Thus, the rod extension portion 31, which functions as a rod guide portion, guides the attachment of the rod mounting main body portion 30 to the operating rod mounting portion B2.

[0075] Next, the application connection process will be described. This application connection process is performed after the insulation connection process. Therefore, in the application connection process, the test device 1, which is attached to the insulating operating rod A or the tip tool B attached to the insulating operating rod A by the insulation connection process, is connected to the application means W. In this embodiment, it is assumed that no test voltage is applied to the application means W before the test device 1 is connected to the application means W.

[0076] In the application connection process, the application-side mounting portion 2 is attached to the application means W. Specifically, the application mounting body portion 20 is hooked onto the application means W from one side X in the height direction X. Here, the opening portion 20a is formed to open toward the other side X2 in the height direction X. Also, the length of this opening portion 20a in the width direction Y is longer than that of the application means W. Therefore, by moving the application-side mounting portion 2 from one side X1 to the other side X2 in the height direction X relative to the application means W, the application mounting body portion 20 moves from one side X1 to the other side X2 in the height direction X and is attached to the application means W. Thus, as the application means W passes through the opening portion 20a, the application mounting body portion 20 approaches the application means W and is attached. Consequently, the application mounting body portion 20 abuts against and hooks onto the application means W from one side X1 in the height direction X. Furthermore, when the application mounting body portion 20 abuts against the application means W, the test device 1 and the application means W are electrically connected. Therefore, the insulating operating rod A and the application means W are electrically connected.

[0077] In this embodiment, the application extension 21, which is positioned on the other side X2 in the height direction X from the application mounting body 20, extends straight along the height direction X. Therefore, when the application means W is passed through the opening 20a, the application extension 21 is guided by the application means W, while the application side mounting part 2 moves from one side X1 to the other side X2 in the height direction X. Thus, the application extension 21, which functions as an application guide, guides the attachment of the application mounting body 20 to the application means W by guiding the movement of the application side mounting part 2 in the height direction X.

[0078] The application mounting body 20 is hooked onto the application means W from one side X1 in the height direction X, thereby connecting the test device 1 to the application means W in the height direction X. Meanwhile, the insulating operating rod A to which the test device 1 is connected moves to the other side X2 in the height direction X relative to the test device 1 due to the weight of the insulating operating rod A. As a result, the tip surface A251 comes into contact with the rod-side mounting part 3. Thus, the insulating operating rod A and the test device 1 are electrically connected. Consequently, the insulating operating rod A and the application means W are electrically connected.

[0079] Furthermore, in the case of an insulated operating rod A to which the tip tool B is attached, when the insulated operating rod A moves to the other side X2 in the height direction X relative to the test apparatus 1, the base end surface of the tool body B1 (specifically, the voltage detection part B11) in the axial direction x comes into contact with the rod-side mounting part 3. Therefore, the insulated operating rod A and the test apparatus 1 are electrically connected via the tip tool B. Consequently, the insulated operating rod A and the application means W are electrically connected.

[0080] As described above, the insulated operating rod A and the application means W are electrically connected by the application connection process. Next, a withstand voltage test is performed on the insulated operating rod A. In the withstand voltage test, first, a test voltage is applied to the application means W. When the test voltage is applied to the application means W, electricity flows to the insulated operating rod A through the test device 1, thereby applying the test voltage to the insulated operating rod A.

[0081] Subsequently, the worker grasps the gripping portion A10 of the insulated operating rod A to which the test voltage has been applied. Here, the gripping portion A10 has insulating properties because its outer surface is made of an electrically insulating material (for example, FPR). Therefore, even if the worker grasps the gripping portion A10, the worker will not be electrocuted.

[0082] As described above, according to this embodiment, the application mounting body 20 is configured to be convex toward one side X1 in the height direction X, such that the other side X2 in the height direction X is open. The length of the opening 20a in the width direction Y is longer than that of the application means W. Therefore, the application mounting body 20 can be attached to the application means W by hooking the application mounting body 20 onto the application means W, making it easy to attach. Furthermore, the application mounting body 20 can also be easily removed from the application means W.

[0083] Furthermore, the application mounting body 20 of this embodiment is configured to be convex toward one side X1 in the height direction X, such that the other side X2 in the height direction X is open. Therefore, as shown in Figure 5, even if the application mounting body 20 moves in the width direction Y while it is hooked onto the application means W, for example, it is possible to prevent the application mounting body 20 from falling off the application means W.

[0084] Furthermore, the application extension portion 21 of this embodiment extends straight along the height direction X. The application extension portion 21 of this embodiment is connected to the base end of the application mounting body portion 20 in the height direction X. Therefore, in the application connection process, when the application means W is passed through the opening portion 20a, the application extension portion 21 is guided by the application means W, while the application-side mounting portion 2 moves from one side X1 to the other side X2 in the height direction X. Thus, the application extension portion 21, which functions as an application guide portion, guides the attachment of the application mounting body portion 20 to the application means W by guiding the movement of the application-side mounting portion 2 in the height direction X. Consequently, the application mounting body portion 20 can be easily attached to the application means W.

[0085] Furthermore, in the application mounting body 20 of this embodiment, a cap K1 made of rubber is attached to one end Y1 in the width direction Y. In addition, a cap K2 made of rubber is attached to the other end X2 in the height direction X of the application extension 21. Therefore, it is possible to prevent the end Y1 in the width direction Y of the application mounting body 20 or the other end X2 in the height direction X of the application extension 21 from hitting the worker and causing injury.

[0086] Furthermore, the rod mounting body portion 30 of this embodiment is configured in an annular shape that opens toward one side Y1 in the width direction Y. In addition, the application mounting body portion 20 of this embodiment is configured to be convex toward one side X1 in the height direction X, such that the other side X2 in the height direction X opens. Therefore, the opening portion 30a is formed to open toward one side Y1 in the width direction Y, and the opening portion 20a is formed to open toward the other side X2 in the height direction X. Thus, in the insulation connection process, the rod mounting body portion 30 is hooked onto the recess A27 or recess B21 in the radial direction y, and in the application connection process, the application mounting body portion 20 is hooked onto the application means W in the height direction X. Therefore, it is easy to connect the insulating operating rod A to the application means W using the test device 1.

[0087] Furthermore, in this embodiment, the guide extension 311 guides the connecting portion A26 in the width direction Y from the other side Z2 in the thickness direction Z, thereby reinforcing the guidance in the width direction Y by the extension body portion 310. Therefore, in the insulating connection process, when the connecting portion A26 is passed through the opening portion 30a via region 31a, it is possible to prevent the connecting portion A26 from separating from the extension body portion 310 in the thickness direction Z, and also to prevent the connecting portion A26 from coming out of region 31a. In addition, when connecting the test instrument 1 to the tip tool B attached to the insulating operating rod A as part of the insulating connection process, it is possible to prevent the operating rod mounting portion B2 from separating from the extension body portion 310, and also to prevent the operating rod mounting portion B2 from coming out of region 31a.

[0088] Furthermore, the rod mounting body 30 in this embodiment opens in the width direction Y toward the application mounting body 20 and is positioned below the application mounting body 20. Therefore, when the insulating operating rod A is connected to the application means W by the test device 1, the application mounting body 20 opens upward due to the weight of the insulating operating rod A, making it difficult for the insulating operating rod A to fall.

[0089] Furthermore, in this embodiment, the length in the thickness direction Z at the base end of the other side Y2 in the width direction Y of region 31a is shorter than the length in the thickness direction Z of the opening 30a. Therefore, for example, the connecting portion A26 that passes through region 31a to the opening 30a moves in the radial direction y corresponding to the thickness direction Z relative to the opening 30a, thereby preventing the connecting portion A26 from coming out of the opening 30a.

[0090] Furthermore, the rod mounting body 30 of this embodiment is positioned on the other side X2 in the height direction X from the application mounting body 20. Therefore, the attachment of the test device 1 to the insulating operating rod A in the insulating connection process and the attachment of the test device 1 to the application means W in the application connection process can be performed at different positions in the height direction X. Thus, the attachment of the test device 1 to the insulating operating rod A and the attachment of the test device 1 to the application means W are easier.

[0091] Furthermore, the rod mounting body 30 in this embodiment is positioned on the other side Y2 in the width direction Y than the application-side mounting portion 2. Therefore, when the test device 1 is attached to the insulating operating rod A by the insulating connection process, the insulating operating rod A is positioned on the other side Y2 in the width direction Y than the application-side mounting portion 2. Thus, in the application connection process, it is possible to prevent the insulating operating rod A from interfering with the attachment of the test device 1 to the application means W.

[0092] Furthermore, in this embodiment, the rod-shaped body constituting the rod-side mounting portion 3 has a smaller diameter than the rod-shaped body constituting the application-side mounting portion 2. Therefore, for example, it is possible to prevent an operator from mistakenly attaching the application-side mounting portion 2 to the tool attachment / detachment portion A2 and the rod-side mounting portion 3 to the application means W.

[0093] Furthermore, the extension shaft portion 313 of this embodiment is provided at the tip of the guide extension portion 311 in the width direction Y, and extends from the guide extension portion 311 to the other side Z2 in the thickness direction Z. Therefore, in the insulation connection process, when passing the connecting portion A26 or the operating rod mounting portion B2 through the region 31a, for example, the extension shaft portion 313 comes into contact with the connecting portion A26 or the operating rod mounting portion B2, thereby suppressing failure to attach the test equipment 1 to the insulating operating rod A or the tip tool B.

[0094] Furthermore, in this embodiment, the extension body portion 310 abuts the application extension portion 21 extending in the height direction X from the other side Z2 in the thickness direction Z, and the connecting extension portion 312 abuts from one side Y1 in the width direction Y. Therefore, since the rod extension portion 31 contacts the application extension portion 21 at two points, the contact area of ​​the rod extension portion 31 with respect to the application extension portion 21 can be increased, and the rod-side mounting portion 3 and the application-side mounting portion 2 can be stably attached.

[0095] Furthermore, for the withstand voltage test of an insulated operating rod, a connection method is provided for connecting an insulated operating rod A to an application means W using a test device 1 in which a rod-side mounting part 3 and an application-side mounting part 2 are electrically connected, comprising an insulating connection step of electrically connecting the test device 1 to the insulated operating rod A, and an application connection step of electrically connecting the test device 1 to the application means W, wherein in the insulating connection step, the rod-side mounting part 3 is attached to the tool attachment / detachment part A2 and / or the electrical connection part, and in the application connection step, the application-side mounting part 2 is attached to the application means W. Thus, by attaching the rod-side mounting part 3 to the tool attachment / detachment part A2 and / or the electrical connection part in the insulating connection step, and attaching the application-side mounting part 2 to the application means W in the application connection step, the insulated operating rod A can be electrically connected to the application means W, and a withstand voltage test can be performed by applying a test voltage to the insulated operating rod A from the application means W.

[0096] Furthermore, in the insulating connection process, the rod-side mounting portion 3 is attached to the tool attachment / detachment portion A2 and / or electrical connection portion by placing the rod mounting body portion 30 over the recess A27 and / or recess B21. Therefore, in the insulating connection process, the rod-side mounting portion 3 is easy to attach to the tool attachment / detachment portion A2 and / or electrical connection portion, and the test equipment 1 and the insulating operating rod A are easy to connect.

[0097] Furthermore, in the insulating connection process, the rod extension section 31, which functions as a rod guide, guides the attachment of the rod mounting body section 30 to the tool attachment / detachment section A2 and / or the electrical connection section. Therefore, the rod mounting body section 30 can be easily attached to the tool attachment / detachment section A2 and / or the electrical connection section.

[0098] Furthermore, in the application connection process, the application mounting body 20 is hooked onto the application means W from one side X1 in the height direction X, thereby attaching the application side mounting part 2 to the application means W. Therefore, in the application connection process, the application side mounting part 2 is easy to attach to the application means W, and the test device 1 and the application means W are easy to connect.

[0099] Furthermore, during the application connection process, the application extension section 21, which functions as an application guide section, guides the attachment of the application mounting body section 20 to the application means W. Therefore, the application mounting body section 20 can be easily attached to the application means W.

[0100] Furthermore, the application connection process is performed after the insulation connection process. Therefore, since the test device 1 and the insulating operating rod A are connected in the insulation connection process, and then the test device 1 and the application means W are connected in the application connection process, the insulating operating rod A can be connected to the application means W.

[0101] It should be noted that the present invention is not limited to the above-described embodiment and can be modified as appropriate without altering the essence of the invention.

[0102] For example, as shown in Figures 7a and 7b, the test apparatus 1 may be configured in a manner different from the above-described embodiment. The test apparatus 1 according to the other embodiment differs from the above-described embodiment in that the application-side mounting portion 2 is attached to the application means W by clamping the application means W. As shown in Figure 7a, the application-side mounting portion 2 according to the other embodiment comprises a pair of application mounting body portions 20, 20.

[0103] One application mounting body 20 extends in the width direction Y. The application mounting body 20 comprises an application clamping portion 200, an application gripping portion 201, and an application connecting portion 202. The application clamping portion 200 extends in the width direction Y. The application clamping portion 200 is inclined toward one side X1 in the height direction X as it progresses from one side Y1 in the width direction Y to the other side Y2. The application gripping portion 201 is connected to the other side Y2 in the width direction Y of the application clamping portion 200. The application gripping portion 201 is inclined toward one side X1 in the height direction X as it progresses from one side Y1 in the width direction Y to the other side Y2. The application connecting portion 202 protrudes from the application clamping portion 200 toward the other side X2 in the height direction X. This application connecting portion 202 is provided at the tip of the application clamping portion 200 in the width direction Y.

[0104] The other application mounting body 20, like the first application mounting body 20, includes an application clamping portion 200, an application gripping portion 201, and an application connecting portion 202. As shown in Figure 7a, the application clamping portion 200 is inclined toward the other side X2 in the height direction X as it progresses from one side Y1 in the width direction Y to the other side Y2. The application gripping portion 201, which is connected to the other side Y2 in the width direction Y of the application clamping portion 200, is also inclined toward the other side X2 in the height direction X as it progresses from one side Y1 in the width direction Y to the other side Y2. The application connecting portion 202, which is provided at the tip of the application clamping portion 200 in the width direction Y, protrudes from the application clamping portion 200 toward one side X1 in the height direction X.

[0105] The pair of application mounting body parts 20, 20 face each other in the height direction X. Specifically, the application clamping parts 200, 200 face each other in the height direction X on one side Y1 in the width direction Y, and the application gripping parts 201, 201 face each other in the height direction X on the other side Y2 in the width direction Y. In another embodiment, the application clamping parts 200, 200 facing each other in the height direction X form an opening 20a. Furthermore, in the pair of application mounting body parts 20, 20, the distance separated in the height direction X increases as you move from one side Y1 to the other side Y2 in the width direction Y. Therefore, in the pair of application mounting body parts 20, 20 facing each other in the height direction X, the distance in the height direction X of the application gripping parts 201, 201 is longer than the distance in the height direction X of the application clamping parts 200, 200. Note that, as shown in Figure 7a, the application clamping parts 200, 200 are in contact in the height direction X on one side Y1 in the width direction Y.

[0106] The application connection portions 202, 202 overlap in the thickness direction Z. Furthermore, a shaft portion 203 extending in the thickness direction Z is inserted through the application connection portions 202, 202. Thus, in the pair of application mounting body portions 20, 20, the application gripping portions 201, 201 are configured to move toward and toward each other in the height direction X, and the application clamping portions 200, 200 are configured to move toward and toward each other in the height direction X. Therefore, in the height direction X, by bringing the application gripping portions 201, 201 closer together in the height direction X, the application clamping portions 200, 200 move toward each other in the height direction X, and by moving the application gripping portions 201, 201 apart in the height direction X, the application clamping portions 200, 200 move toward each other in the height direction X. In addition, in this embodiment, as the application clamping portions 200, 200 move toward each other in the height direction X, the opening portion 20a is formed to open toward one side Y1 in the width direction Y.

[0107] As shown in Figure 7b, the rod-side mounting portion 3 according to another embodiment comprises a pair of rod mounting body portions 30, 30. One of the rod mounting body portions 30 comprises a rod clamping portion 300, a rod gripping portion 301, and a rod connecting portion 302. The rod clamping portion 300 extends in the width direction Y. The rod clamping portion 300 is inclined toward one side Z1 in the thickness direction Z as it progresses from the other side Y2 in the width direction Y to the one side Y1. The rod gripping portion 301 is connected to one side Y1 in the width direction Y of the rod clamping portion 300. The rod gripping portion 301 is inclined toward one side Z1 in the thickness direction Z as it progresses from the other side Y2 in the width direction Y to the one side Y1. The rod connecting portion 302 protrudes from the rod clamping portion 300 toward the other side Z2 in the thickness direction Z. This rod connecting portion 302 is provided at the base end of the rod clamping portion 300 in the width direction Y.

[0108] The other rod mounting body 30, like the first rod mounting body 30, includes a rod clamping portion 300, a rod gripping portion 301, and a rod connecting portion 302. The rod clamping portion 300 is inclined toward the other side Z2 in the thickness direction Z as it progresses from the other side Y2 in the width direction Y to the one side Y1. The rod gripping portion 301, which is connected to the one side Y1 in the width direction Y of the rod clamping portion 300, is also inclined toward the other side Z2 in the thickness direction Z as it progresses from the other side Y2 in the width direction Y to the one side Y1. The rod connecting portion 302, which is provided at the base end of the rod clamping portion 300 in the width direction Y, protrudes from the rod clamping portion 300 toward the one side Z1 in the thickness direction X.

[0109] The pair of rod mounting body parts 30, 30 face each other in the thickness direction Y. Specifically, the rod clamping parts 300, 300 face each other in the thickness direction Z on the other side Y2 in the width direction Y, and the rod gripping parts 301, 301 face each other in the thickness direction Z on the one side Y1 in the width direction Y. In another embodiment, the opening part 30a is formed by the rod clamping parts 300, 300 facing each other in the thickness direction Z. Furthermore, in the pair of rod mounting body parts 30, 30, the distance between them in the thickness direction Z increases as you move from the other side Y2 in the width direction Y to the one side Y1. Therefore, in the pair of rod mounting body parts 30, 30 facing each other in the thickness direction Z, the distance in the thickness direction Z of the rod gripping parts 301, 301 is longer than the distance in the thickness direction Z of the rod clamping parts 300, 300. Note that, as shown in Figure 7, the rod clamping parts 300, 300 are in contact in the thickness direction Z on the other side Y2 in the width direction Y.

[0110] The rod connecting portions 302, 302 overlap in the height direction X. Furthermore, a shaft portion 303 extending in the height direction X is inserted through the rod connecting portions 302, 302. Thus, in the pair of rod mounting body portions 30, 30, the rod gripping portions 301, 301 are configured to move toward and toward each other in the thickness direction Z, and the rod clamping portions 300, 300 are configured to move toward and toward each other in the thickness direction Z. Therefore, in the thickness direction Z, by bringing the rod gripping portions 301, 301 closer together in the thickness direction Z, the rod clamping portions 300, 300 move toward each other in the thickness direction Z, and by moving the rod gripping portions 301, 301 apart in the thickness direction Z, the rod clamping portions 300, 300 move toward each other in the thickness direction Z. In addition, in this embodiment, as the rod clamping portions 300, 300 move toward each other in the thickness direction Z, the opening portion 30a is formed to open toward the other side Y2 in the width direction Y.

[0111] The other application mounting body 20 and the other rod mounting body 30 are attached to each other. Specifically, as shown in Figure 7a, the other end face X2 in the height direction X of the application gripping part 201 and the one end face X1 in the height direction X of the rod gripping part 301 are attached to each other. Therefore, the rod-side mounting part 3 is positioned on the other side X in the height direction X of the application-side mounting part 2.

[0112] In the application-side mounting portion 2 of the other embodiment, the application gripping portions 201, 201 are brought closer together in the height direction X, and the application clamping portions 200, 200 are separated in the height direction X, thereby opening the opening portion 20a toward one side Y1 in the width direction Y. Therefore, the application means W is passed through the opening portion 20a from the other side Y2 in the width direction Y, and the application clamping portions 200, 200 are brought closer together in the height direction X, so that the application means W is clamped by the application clamping portions 200, 200. Thus, the application-side mounting portion 2 is attached to the application means W by clamping the application means W with the application clamping portions 200, 200.

[0113] Furthermore, at the rod-side mounting portion 3, the rod gripping portions 301, 301 are brought closer together in the thickness direction Z, and the rod clamping portions 300, 300 are separated in the thickness direction Z, thereby opening the opening portion 30a toward the other side Y2 in the width direction Y. Thus, the connecting portion A26 or the operating rod mounting portion B2 is passed through the opening portion 30a from one side Y1 in the width direction Y, and the rod clamping portions 300, 300 are brought closer together in the thickness direction Z, so that the connecting portion A26 or the operating rod mounting portion B2 is clamped by the rod clamping portions 300, 300. Consequently, by clamping the connecting portion A26 or the operating rod mounting portion B2 with the rod clamping portions 300, 300, the rod-side mounting portion 3 is attached to the tool attachment / detachment portion A2 or the electrical connection portion.

[0114] As described above, according to other embodiments, the application-side mounting portion 2 includes a pair of application clamping portions 200, 200 that clamp the application means W, and the application-side mounting portion 2 is attached to the application means W by clamping the application means W with the pair of application clamping portions 200, 200. Therefore, in other embodiments, the test device 1 and the application means W can be connected by the pair of application clamping portions 200, 200 clamping the application means W from both sides X1, X2 in the height direction X.

[0115] Furthermore, the pair of application clamping parts 200, 200 clamp the application means W, thereby securely fixing the application mounting body 20 to the application means W and preventing the test device 1 and the application means W from coming apart.

[0116] Furthermore, the rod-side mounting portion 3 is equipped with a pair of rod clamping portions 300, 300 that clamp the connecting portion A26 or the operating rod mounting portion B2, and the rod-side mounting portion 3 is attached to the tool attachment / detachment portion A2 and / or electrical connection portion by clamping the connecting portion A26 or the operating rod mounting portion B2 with the pair of rod clamping portions 300, 300. Thus, in another embodiment, the test apparatus 1 and the insulated operating rod A can be connected by clamping the connecting portion A26 or the operating rod mounting portion B2 from both sides Z1, Z2 in the thickness direction Z with the pair of rod clamping portions 300, 300.

[0117] Furthermore, by clamping the connecting portion A26 or the operating rod mounting portion B2 with the pair of rod clamping portions 300, 300, the rod mounting body portion 30 can be securely fixed to the tool attachment / detachment portion A2 and / or the electrical connection portion, preventing the test device 1 and the insulated operating rod A from coming apart.

[0118] In another embodiment, the insulating operating rod A and the applying means W are connected by a pair of application clamping parts 200, 200 clamping the applying means W and a pair of rod clamping parts 300, 300 clamping the connecting part A26 or the operating rod mounting part B2. Thus, the insulating operating rod A and the applying means W can be securely fixed together.

[0119] Furthermore, as shown in Figures 8a and 8b, for example, the test apparatus 1 may also be a different embodiment from the first embodiment and the other embodiments described above. Below, a test apparatus 1 according to a different embodiment will be described. When describing the test apparatus 1 according to a different embodiment, the same configuration and operation as in the first embodiment and the other embodiments will be omitted from the description.

[0120] In another embodiment of the test apparatus 1, the application-side mounting section 2 comprises only the application mounting main body section 20. The application mounting main body section 20 comprises an application placement section 204 and a fall prevention section 205.

[0121] The application mounting portion 204 is the part that is placed on the application means W. As shown in Figure 8b, the application mounting portion 204 extends along the width direction Y. Specifically, the application mounting portion 204 is configured to extend along the width direction Y and the thickness direction Z. In addition, as shown in Figure 8a, the application mounting portion 204 of this embodiment extends in the height direction X. Furthermore, in the application mounting portion 204 of this embodiment, the length in the width direction Y is longer than the lengths in the thickness direction Z and the height direction X. Moreover, in the application mounting portion 204 of this embodiment, the length in the width direction Y is longer than the application means W. Note that in the application mounting portion 204 of this embodiment, the end face (base end face) of the other side X2 in the height direction X widens along the width direction Y and the thickness direction Z.

[0122] The anti-detachment portion 205 is intended to prevent the application mounting portion 204 from falling off the application means W. Specifically, it is configured to be able to contact the application means W from one side Y1 in the width direction Y. Specifically, the anti-detachment portion 205 is provided on one side Y1 in the width direction Y of the application mounting portion 204. The anti-detachment portion 205 also protrudes from the application mounting portion 204 to the other side X2 in the height direction X. The anti-detachment portion 205 is shorter than the application mounting portion 204 in the width direction Y. In this embodiment, the anti-detachment portion 205 is longer than the application mounting portion 204 in the height direction X. In this embodiment, the anti-detachment portion 205 is configured to be approximately the same length as the application mounting portion 204 in the thickness direction Z.

[0123] Furthermore, in the test apparatus 1 according to another embodiment, the rod-side mounting portion 3 comprises only the rod mounting main body portion 30. As shown in Figure 8b, the rod mounting main body portion 30 in the other embodiment is configured in an annular shape that opens toward the other side Y2 in the width direction Y. Therefore, in the other embodiment, the opening portion 30a opens toward the other side Y2 in the width direction Y. Also, the rod mounting main body portion 30 in the other embodiment is positioned toward the other side Y2 in the width direction Y than the application mounting main body portion 20. Specifically, the rod mounting main body portion 30 in the other embodiment is attached to the application mounting main body portion 20. Furthermore, the rod mounting main body portion 30 in the other embodiment is positioned at approximately the same position as the application mounting main body portion 20 in the height direction X. In addition, as shown in Figure 8b, the rod mounting main body portion 30 is longer than the application mounting main body portion 20 in the thickness direction Z. On the other hand, as shown in Figure 8a, the rod mounting main body portion 30 is shorter than the application mounting main body portion 20 in the width direction Y.

[0124] In another embodiment, the rod mounting body 30 is configured in an annular shape that opens toward the other side Y2 in the width direction Y. Therefore, by moving the rod-side mounting part 3 from one side Y1 to the other side Y2 in the width direction Y relative to the tool attachment / detachment part A2, the connecting part A26 is passed through the opening 30a. Thus, by placing the rod mounting body 30 over the recess A27 from one side Y1 in the width direction Y, the rod-side mounting part 3 is attached to the tool attachment / detachment part A2. Similarly, when attaching the rod-side mounting part 3 to the operating rod mounting part B2, the rod-side mounting part 3 is moved from one side Y1 to the other side Y2 in the width direction Y, passing the operating rod mounting part B2 through the opening 30a.

[0125] According to another embodiment, the application-side mounting portion 2 includes an application mounting portion 204 that is placed on the application means W. Therefore, by placing the application mounting portion 204 on the application means W, the application-side mounting portion 2 can be attached to the application means W, making it easy to connect the test instrument 1 to the application means W. Thus, by connecting the test instrument 1 attached to the insulating operating rod A to the application means W, the insulating operating rod A can be connected to the application means W.

[0126] Furthermore, the application mounting portion 204 is configured to extend along the width direction Y and the thickness direction Z. As a result, the end face (base end face) of the other side X2 in the height direction X spreads along the width direction Y and the thickness direction Z. Therefore, the base end face of the application mounting portion 204 in the height direction X is placed on the application means W from one side X1 in the height direction X. Thus, the application side mounting portion 2 can be stably attached to the application means W.

[0127] The application-side mounting portion 2 includes a fall prevention portion 205 that protrudes from the application mounting portion 204 to the other side X2 in the height direction X. This fall prevention portion 205 can contact the application means W from one side in the width direction Y when the application mounting portion 204 is placed on the application means W. Therefore, even if the application mounting body portion 20 moves to the other side Y2 in the width direction Y when the application mounting portion 204 is placed on the application means W, the fall prevention portion 205 will contact the application means W from one side Y1 in the width direction Y. Thus, the application mounting body portion 20 can be prevented from falling off the application means W.

[0128] In the above embodiment, the case in which the operating rod mounting portion B2 is configured as an electrical connection portion was described. However, it is not limited to this, and for example, the part of the tip tool B that performs indirect live-line work, such as the tip hook portion of a binding punch or the clamping portion of a clamp, can also be configured as an electrical connection portion if it is electrically connected to the operating rod mounting portion B2.

[0129] Furthermore, for example, if the entire tip tool B is made of metal and the tool body B1 and the operating rod mounting part B2 are electrically connected, the operating rod mounting part B2 and the tool attachment / detachment part A2 are electrically connected, thereby electrically connecting the tool body B1 to the tool attachment / detachment part A2.

[0130] In the above embodiment, as shown in Figure 1, the case in which the applied extension portion 21 extends straight along the height direction X was described. However, for example, the applied extension portion 21 may be configured to inclinate to one side Y1 or the other side Y2 of the width direction Y as it moves toward one side X1 in the height direction X.

[0131] Furthermore, in the above embodiment, the rod-side mounting portion 3 and the rod-side mounting portion 2 were electrically connected by being attached to each other. However, it is sufficient for the rod-side mounting portion 3 and the rod-side mounting portion 2 to be electrically connected; for example, the rod-side mounting portion 3 and the rod-side mounting portion 2 may be electrically connected by being connected separately via a connecting portion.

[0132] In the above embodiment, the rod mounting body 30 was arranged in a plane extending in the width direction Y and the thickness direction Z. However, it is not limited to this, and for example, the rod mounting body 30 may be arranged in a plane extending in the height direction X and the width direction Y or the thickness direction Z. In this case, the rod mounting body 30 may be configured in an annular shape that opens toward one side Z1 or the other side Z2 in the thickness direction Z.

[0133] Alternatively, for example, the application mounting body 20 may be magnetically attached to the application means W, thereby attaching the application-side mounting portion 2 to the application means W.

[0134] In the above embodiment, the case in which the rod-side mounting portion 3 is attached to the tool attachment / detachment portion A2 or the operating rod mounting portion B2 which serves as an electrical connection portion was described. However, the invention is not limited to this, and for example, the rod-side mounting portion 3 may be attached to both the tool attachment / detachment portion A2 and the operating rod mounting portion B2 which serves as an electrical connection portion. [Explanation of symbols]

[0135] 1: Test device, 2: Application side mounting part, 20: Application mounting main body part, 20a: Opening part, 200: Application clamping part, 201: Application gripping part, 202: Application connecting part, 21: Application extension part, 3: Rod side mounting part, 30: Rod mounting main body part, 30a: Opening part, 300: Rod clamping part, 301: Rod gripping part, 302: Rod connecting part, 31: Rod extension part, 310: Extension main body part, 311: Guide extension part, 312: Connection extension part, 313: Extension shaft part, A: Insulated operating rod, A1: Operating rod body, A10: Grip part, A11: Flange part, A12: Separation B: Partition, A13: Head part, A2: Tool attachment / detachment part, A20: Base part, A21: Small diameter base part, A22: Large diameter base part, A220: Base end face, A221: Tip face, A23: Tool fixing part, A24: Screw fixing part, A25: Fixing reinforcement part, A250: Base end face, A251: Tip face, A26: Connecting part, A27: Recess, B: Tip tool, B1: Tool body, B10: Contact part, B11: Voltage detection part, B12: Notification means, B2: Operating rod mounting part, B20: Female screw, C: Copper wire, K1: Cap, K2: Cap, W: Application means

Claims

1. A test apparatus for withstand voltage testing of an insulated operating rod with a detachable tip tool, The insulated operating rod has an insulating gripping portion for the operator to hold, and a conductive tool attachment / detachment portion from which the tip tool can be attached and detached. The aforementioned tip tool has an electrical connection part that is electrically connected to the tool attachment / detachment part when attached to the tool attachment / detachment part. A rod-side mounting portion that can be attached to the electrical connection portion of the tool tip attached to the tool attachment portion and / or the tool attachment portion, The insulated operating rod is equipped with an application-side mounting portion that can be attached to an application means for applying a test voltage, The rod-side mounting portion and the application-side mounting portion are electrically connected. The application-side mounting portion comprises an application extension portion extending in the height direction along the axial direction of the insulating operating rod to which the rod-side mounting portion is attached, and an application mounting body portion provided at the tip of the application extension portion in the height direction and attached so as to be in electrical contact with the application means. The aforementioned application mounting body is a test device that is attached to the application means in the height direction.

2. The test apparatus according to claim 1, wherein the application extension portion functions as an application guide portion that guides the attachment of the application mounting body portion to the application means.

3. The test apparatus according to claim 1, wherein the rod-side mounting portion comprises a rod mounting body portion configured to be attachable to the tool attachment / detachment portion and / or the electrical connection portion along the radial direction of the insulating operating rod.

4. The rod-side mounting portion includes a rod extension portion that extends along a plane perpendicular to the height direction, The rod mounting body is positioned at the extended end of the rod extension section. The test apparatus according to claim 3, wherein the rod extension portion functions as a rod guide portion that guides the attachment of the rod mounting body portion to the tool attachment / detachment portion and / or the electrical connection portion.

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