JPH0677412U - Insulation coating material for indirect live wire construction method - Google Patents

Abstract

(57) [Abstract] [Purpose] To provide a covering material for an indirect live-wire construction method, which is hard to come off and is easy to work at the time of mounting and withstanding voltage test. An insulating molded body 10 having a shape that fits into the high-voltage cutout switch 50 and having an opening 19 for the inside of the high-voltage cutout switch 50 with a lid 55 opened; An insulating coating material for a high-voltage cutout switch, which comprises a resin sheet 30 in which the molded body 10 is adhered to the females 17 and 18 of the surface tapes by the males 33 and 34 of the surface tapes and the opening 19 can be opened and closed. 1.
Since the high-voltage cutout switch 50 is fitted, it is easy to install and is fixed after the installation. Further, since the resin insulating sheet 30 is flat, the work of withstanding voltage test is easy. Moreover, since the insulating molded body 10 and the resin insulating sheet 30 can be attached to and detached from each other,
They can be stacked separately when stored.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to an insulating coating material used for improving the safety of construction when performing distribution work while electricity is being supplied to an electric wire, for example, an insulating coating material for covering a high-voltage cutout switch.

[0002]

[Prior art]

 Conventionally, the demand for electric power has increased sharply, and the demand for quality such as demand for improvement in supply reliability has further increased. For this reason, it is desirable to carry out power distribution work by the so-called indirect live-wiring method, in which work is carried out without power failure as much as possible. For example, work such as replacing transformers, relays, jumper wires, and other power distribution equipment that is located around utility poles is carried out in a live condition while electricity is being supplied to the wires.

[0003] In the case of performing power distribution work in a live state as described above, the energized portion is covered with an insulating material to prevent electric shock, ground fault / short circuit, erroneous operation, etc., thereby improving the safety of the work. For example, when the high pressure cutout switch is opened to perform work on the high voltage line, etc., cover the switch body with the lid open with an insulating material to prevent electric shock or accidentally closing the lid. An insulating coating material for the cutout switch is used.

As the insulating coating material for the coating material such as the high-voltage cutout switch, a rubber sheet or a soft resin sheet, or a rubber PC cover fitted to the high-voltage cutout switch (PC), or the like. Is used.

[0005]

[Problems to be solved by the device]

 However, for example, with rubber sheets or soft resin sheets, it was only possible to cover and cover the material to be covered, so it is not easy to attach it in a well-balanced manner to the material to be covered with an insulating operating rod etc. Also, if some external force is applied even after mounting, there is a problem that the balance may be lost and the switch may easily come off, and it may not be fixed. Further, as shown in FIG. 15, since the PC cover 200 has a shape that fits into the high-voltage cutout switch, the above-mentioned problems do not occur, but since it is a three-dimensional molded body, a withstand voltage test is performed. There is a drawback in that the work to be performed is complicated and that an electrode suitable for each shape of the molded body is required as a jig for that purpose.

Therefore, an object of the present invention is to solve the above problems, and to provide a covering material for an indirect live-wire construction method, which is hard to come off and is easy to work at the time of mounting and withstanding voltage test.

[0007]

[Means for Solving the Problems]

 The covering material for an indirect live-wire construction method of the present invention is characterized by having a fitting member that is detachable from the material to be covered and a soft insulating sheet that is detachable from the fitting member.

[0008]

[Action]

 The covering material for the indirect live-wire construction method of the present invention has a fitting member that is detachable from the material to be covered. Therefore, at the time of attachment, for example, an insulating operating rod or the like may be fitted into the covering material so as to fit it. Therefore, it is easy to install, and because it is installed by fitting it with the covering material, it may be accidentally detached from the covering material or deviated from the fixed position during work unless a strong external force is intentionally applied. There is no.

Further, the covering material for an indirect live-wire construction method of the present invention has a soft insulating sheet that is detachable from the fitting member. Since the insulating sheet is flat, it is easy to perform a withstand voltage test and does not require a jig for each shape suitable for it. Therefore, the work efficiency of the withstand voltage test is improved.

The insulative coating material for the indirect live wire method of the present invention is insulative and thus prevents electric shock, ground fault, short circuit, and the like.

[0011]

【Example】

 In order to further clarify the structure and operation of the present invention described above, a preferred embodiment of the present invention will be described below. [Embodiment 1] In this embodiment, an insulating coating material for a high-voltage cutout switch, which is used when the high-voltage cutout switch is opened and construction of a high-voltage circuit is performed, will be described as an example.

The insulating coating material 1 for a high-voltage cutout switch according to this embodiment includes a hard insulating molded body 10 shown in FIG. 2 and a soft resin insulating sheet 30 shown in FIG. It is formed by covering the resin insulating sheet 30. FIG. 1 shows a state in which the insulating coating material 1 for a high voltage cutout switch of this embodiment is attached to a high voltage cutout switch 50.

The insulating molded body 10 has a U-shape including an upper surface 11 and left and right side surfaces 12 and 13, and the upper surface 11 is fitted with a cylindrical metal fitting 52 projecting from an upper portion 51 of a high-voltage cutout switch 50. The circular fitting hole 14 and the side surfaces 12 and 13 are provided with projections 15 and 16 which fit into grooves (not shown) provided on the side surface 53 of the high-voltage cutout switch 50. . Surface taper knives 17 and 18 are provided on the outer surfaces of both side surfaces 12 and 13, respectively, so that the resin insulation sheet 30 can be attached and detached.

The resin-made insulating sheet 30 is a single sheet having a substantially L-shape as shown in a developed view in FIG. 4, and is bent into a U-shape as shown in FIG. 3 to form the insulating molded body 10. Cover. Face tape males 33, 34 are provided on the inner surfaces of the side faces 31, 32 adhered to the face tape females 17, 18 on both side faces 12, 13 of the insulating molded body 10, respectively. A fitting hole 36 having the same shape as the fitting hole 14 of the insulating molded body 10 is provided on the upper surface 35 for the same purpose. The opening / closing portion 37 that covers the opening 19 of the insulating molded body 10 is connected to one side surface 32, and the end portion 38 is provided with two square adhesive portions 39 each having a male face tape. There is. The other side surface 31 is provided with two face tape scalpels 40 having the same size as the adhesive portion 39, and the opening / closing portion 37 is provided with the adhesive portion 39 and the other side as shown by a dashed line 41 in FIG. The surface tape female 40 on the side surface 31 is stopped to cover the opening 19 of the insulating molded body 10, or is folded back as shown by a dotted line 42 in FIG. 3 and connected to the surface tape male 43 provided in the opening / closing portion 37. The opening 19 of the insulating molded body 10 can be released by stopping the tape tape knife 44 on the side surface 32. A rubber material is built in the adhesive portion 39 so that it can be easily gripped when opening and closing.

The insulating coating material 1 for a high-voltage cutout switch according to the present embodiment is obtained by coating the insulating molded body 10 with the resin insulating sheet 30 to form both side surfaces 12, 13 of the insulating molded body 10. It is formed by adhering the females 17, 18 of the tape to the males 33, 34 of the side tapes 31, 32 of the resin insulating sheet 30. The opening / closing portion 37 of the resin insulating sheet 30 covers and releases the opening portion 19 of the insulating molded body 10 as necessary as described above.

Next, a procedure for mounting the high pressure cutout switch 50 will be described. FIG. 1 shows a state in which the insulating cover material 1 for the high pressure cutout switch of this embodiment is attached to the high pressure cutout switch 50. First of all, in the state where the high-voltage cutout switch 50 is closed, the insulation coating material 1 for the high-voltage cutout switch 50 is applied to the high-voltage cutout switch 50, the metal fitting 52 of the high-voltage cutout switch 50 and the high-voltage cutout switch 50. The fitting holes 14 and 36 of the insulating coating material 1, the groove portion of the high-voltage cutout switch 50 and the convex portions 15 and 16 of the insulating coating material 1 for the high-voltage cutout switch are fitted and attached to each other. Here, the opening / closing part 37 of the resin insulating sheet 30 of the insulating coating material 1 for the high-voltage cutout switch is opened. The insulating coating material 1 for a high-voltage cut-out switch of this embodiment allows the hard insulating molded body 10 to be fitted into the high-voltage cut-out switch 50, so that it can be easily attached with, for example, an insulating operating rod. Unless it is intentionally applied with a strong external force, it will hardly come off from the high-voltage cutout switch 50 or be displaced from its home position after being attached. Next, the opening / closing part 37 of the resin insulating sheet 30 is closed. When working, the opening / closing portion 37 of the resin insulating sheet 30 is opened, and the lid 55 of the high-voltage cutout switch 50 is opened. Then, the opening / closing part 37 of the resin insulating sheet 30 is closed (state of FIG. 1). The resin insulating sheet 30 prevents the lid 55 of the high-voltage cutout switch 50 from being accidentally closed, and further prevents electric shock. When it is desired to work inside the high-voltage cutout switch 50, for example, at the time of voltage detection, the opening / closing portion 37 of the resin insulating sheet 30 is opened, and the opening / closing portion 37 of the resin insulating sheet is closed except when necessary. You can leave it. For this reason, workability is improved, and safety is improved as compared with the case where the insulating coating material for the high-voltage cutout switch is removed and attached each time. Since the adhesive portion 39 of the resin insulating sheet 37 contains a rubber material, it can be easily grasped and opened and closed easily.

Since the resin insulation sheet 30 is flat, it is easy to perform a withstand voltage test, and a jig suitable for each shape is not required to perform the withstand voltage test. . In addition, since it is flat, it does not take up space during manufacturing and withstand voltage tests. Further, since it is soft, it fits into an uneven operating portion and can be closed properly according to the shape of the material to be coated. For this reason, it is not necessary to mold the covering material so as to fit the operation portion having a complicated shape.

Moreover, in the insulation coating material 1 for a high-voltage cutout switch according to the present invention, the insulation molded body 10 and the resin insulation sheet 30 are detachable. Therefore, they can be stored separately. Therefore, the insulating molded body 10 having a simple shape and the planar resin insulating sheet 30 can be separately stacked on each other, which saves storage space and is convenient for storage. Further, when only the resin insulating sheet 30 is damaged, only the resin insulating sheet 30 can be replaced, which is economical.

According to the above embodiment, the insulating molded body 10 detachably fitted to the high pressure cutout switch 50 and having the opening portion 19 with respect to the lid 55 of the high pressure cutout switch 50, and the opening portion. By providing a soft resin insulation sheet 30 for opening and closing with respect to 19, it becomes difficult to remove the insulation coating material 1 for the high-voltage cutout switch from the high-voltage cutout switch 50, and at the time of mounting and withstanding voltage test. Was able to improve the workability of. Further, the insulating covering material 1 for the high-voltage cutout switch of this embodiment is compact because it covers only the opening 19 of the high-voltage cutout switch 50.

Although the insulating molded body 10 and the resin-made insulating sheet 30 are detachably attached by the surface tapes 17, 18, 33, and 34 in this embodiment, the present invention is not limited to this, and various methods can be used. It can be removable. For example, as shown in the schematic perspective view of FIG. 5A and the AA cross-sectional view of FIG. 5B, the resin-made insulating sheet 100 is provided with the handle 102, and the insulating molded body X is moved in the direction of the arrow. In order to improve the workability of insertion, as shown in FIG. 6 (a), a schematic perspective view thereof, and FIG. 6 (b), a partial end view thereof, which can be inserted and removed. An improved insertion type in which the end portion 106 of the handle 102 is detachably attached with a surface tape 108, or as shown in a partial end view of FIG. 6C, the central portion 110 of the handle 102 is a surface tape. An improved plug-in type that is detachable at 108, a plug-in type whose handle 102 is a pocket 112 as shown in a partial perspective view in FIG. 7, and a schematic perspective view thereof in FIG. 8 (a) and FIG. 8 (b). When inserting the insulating molded body Y into the As shown in the figure, the resin insulating sheet 114 is formed into a bag shape, the insulating molded body Y (for example, L-shaped) is inserted, and the opening 116 of the resin insulating sheet 114 is attached and detached by the surface tape 118. A lid type that can be opened and closed by a lid 120 that can be opened or closed, or as shown in the schematic view of FIG. 9, an insulating molded body 122 and a resin insulating sheet 124 are provided with concave and convex buttons 126 that can be engaged with each other. Various shapes such as a detachable button which can be attached and detached by the button 126 can be equally used.

[Embodiment 2] In this embodiment, the high-voltage cut-out switch 1 is constructed in substantially the same manner as the high-voltage cut-out switch 1 of the above-mentioned Embodiment 1, but the high-voltage cut-out switch is completely covered to further enhance safety. An insulating coating material 100 for an out switch is shown. That is, the insulating coating material 100 for a high-voltage cutout switch according to the second embodiment covers the entire high-voltage cutout switch including the lid even when the lid is open.

FIG. 10 shows a state in which the insulating coating material 100 for the high-voltage cutout switch of the second embodiment is attached to the high-voltage cutout switch 107. FIG. 11 shows a plan view of the insulating molded body 103, FIG. 12 shows its front view, and FIG. 13 shows its right side view. Further, FIG. 14 shows a development view of the resin insulating sheet 105.

The insulation coating material 100 for a high-voltage cutout switch according to the second embodiment is composed of a hard insulation molded body 103 and a soft resin insulation sheet 105, as in the first embodiment. 103 is formed by covering the resin insulating sheet 105. The insulating molded body 103 has a substantially rectangular tubular shape having front and rear openings. The lower surface 109 is formed by stacking a plate-shaped member continuous from one side surface 111 and a plate-shaped member continuous from the other side surface 113. By opening this overlap on the lower surface 109, it is possible to insert a high-voltage cutout switch wider than the opening area. Similar to the first embodiment, the upper surface 115 is provided with a circular fitting hole 119 that fits into the metal fitting 117 of the high-voltage cutout switch 107, and the side surfaces 111 and 113 are provided on the side surface of the high-voltage cutout switch 107. Protrusions 121 and 123 that fit into the grooves (not shown) are provided, respectively. Surface tape scalpels 125, 127, 129 are provided on the outer surfaces of the upper surface 115 and both side surfaces 111, 113, respectively, so that the resin insulating sheet 105 can be attached and detached.

The resin insulating sheet 105 is a single sheet having a substantially L shape as in the first embodiment, and is bent to cover the insulating molded body 103. The inner surface of the upper surface 130 and both side surfaces 131, 133 of the resin-made insulating sheet 105 adhered to the upper surface 115 of the insulating molded body 103 and the surface tape knife 125, 127, 129 of the both side surfaces 111, 113 is covered with a surface tape. Males 134, 135, and 137 are provided at the corresponding positions.

A fitting hole 141 having the same shape as the fitting hole 119 of the insulating molded body 103 is provided on the upper surface 130 of the resin insulating sheet 105 for the same purpose. Further, a metal fitting covering piece 142 is provided at the end of the fitting hole 141 so as to be connected to the upper surface 130. The metal fitting covering piece 142 has a male face 146 of a face tape at an end 144 thereof, and a handle 148 is provided. The male part 146 of this surface tape is stopped by the female part 150 of the surface tape provided on the other side surface 133, and covers the metal fitting 117 of the high-voltage cutout switch 107 in the circumferential direction.

The opening / closing portion 141 that covers the opening 139 of the insulating molded body 103 is connected to one side surface 131, has an end tape 143 having a male tape 145, and has three square handles. 147 is provided. On the other side surface 133, a face tape female 149 is provided at a position corresponding to the face tape male 145 while covering the opening 139 of the insulating molded body 103. The opening / closing part 151 covers the opening 139 of the insulating molded body 103 by fixing the male tape 145 of the surface tape on the one side surface 131 to the female tape 149 of the surface tape on the other side surface 132, as in the first embodiment. The opening 139 of the insulating molded body 103 can be released by folding back. Further, the handle 147 has a built-in rubber material so that it can be easily gripped when opening and closing.

Further, the resin insulating sheet 105 is provided with a lower surface covering portion 153 for covering the lower surface 109 of the insulating molded body 103, connected to the other side surface 133, and the end portion 155 is a surface tape. In addition to the male 157, a square handle 159 is provided. On one side surface 131, a face tape female 161 is provided at a position corresponding to the face tape male 157 while covering the lower surface 109 of the insulating molded body 103, and the face tape male 157 is stopped. . The lower surface covering portion 153 is provided with a surface tape female 165 on the bottom surface 163 on the opening 139 side, and the surface tape male 169 provided on the end portion 167 extended from the opening / closing portion 151. stop. In addition, a wall surface covering portion 171 for covering a wall surface to which the high pressure cutout switch 107 is attached and the high pressure cutout switch 107 is provided by being connected to the other side surface 133, and the end portion 173 has a surface. Having a male tape 175. On one side surface 131, a face tape female 177 is provided at a position corresponding to the face tape male 175 in a state where the wall surface covering portion 171 covers the space between the wall surface of the insulating molded body 103. Stop the male tape 175 on the surface tape.

The insulating coating material 100 for a high-voltage cutout switch according to the present embodiment is obtained by covering the insulating molded body 103 with the resin insulating sheet 105 to cover the upper surface 115 and both side surfaces 111 and 113 of the insulating molded body 103. It is formed by adhering the females 125, 127, 129 of the surface tape to the males 134, 135, 137 of the surface tapes on the upper surface 130 and both side surfaces 131, 133 of the resin insulating sheet 105. The lower surface covering portion 153, the metal fitting covering piece 142, and the wall surface covering portion 171 of the resin insulating sheet 105 cover each part of the high voltage cut-out switch 107 in a state in which the insulating material 100 is covered with the high voltage cut-out switch 107. To do. Further, the opening / closing portion 151 of the resin insulating sheet 105 covers and releases the opening 139 of the insulating molded body 103 as necessary as described above.

Next, a procedure for attaching to the high pressure cutout switch 107 will be described. First, the insulating coating material 100 for the high-voltage cutout switch is used for the high-voltage cutout switch 107 in a state where the high-voltage cutout switch 107 is closed, and the metal fitting 117 of the high-voltage cutout switch 107 and the high-voltage cutout switch 107 are used. The insulating coating material 100 is fitted into the fitting holes 119 and 141, and the groove portion of the high-voltage cutout switch 107 and the convex portions 121 and 123 of the insulating molded body 103 are fitted into each other and attached. Here, the convex portions 121 and 123 of the insulating molded body 103 abut the high-voltage cutout switch 107 before reaching the groove of the high-voltage cutout switch 107, but the lower surface 109 is opened by pushing and the high-voltage cutout switch 107 is opened. The out switch 107 can be inserted. The lower surface 109 is closed with the convex portions 121 and 123 of the insulating molded body 103 fitted in the grooves of the high-voltage cutout switch 107. Next, the lower surface covering portion 153, the metal fitting covering piece 142, and the wall surface covering portion 171 of the resin insulating sheet 105 are closed to cover the high-voltage cutout switch 107, and they are adhered to each other by a surface tape.

When working, the opening / closing part 151 of the resin insulating sheet 107 is opened, and the lid of the high-voltage cutout switch 107 is opened. Then, the opening / closing portion 151 of the resin insulating sheet 107 is closed, and the male tape 145 of the surface tape is fixed to the female tape 149 of the surface tape on the other side surface 133. Further, the end 167 of the opening / closing part 151 is stopped by the male 169 of the surface tape to the female 165 of the surface tape of the lower surface covering part 153 (state of FIG. 10).

According to the insulating coating material 100 for a high-voltage cutout switch of the second embodiment, the same effect as in the above-described first embodiment can be obtained, and the high-voltage cutout switch 107 with the lid open can be obtained. Since the whole can be covered, including the lid, safety is further improved.

In addition, in each of the above-described embodiments, the insulating coating material 1,100 for a high-voltage cutout switch, which is used when the high-voltage cutout switches 50, 107 are opened to perform a power distribution work or the like, has been described. The present invention is not limited to this, and can be applied to a covering material for various parts that fit to various other parts.

Although the embodiments of the present invention have been described above, the present invention is not limited to these embodiments, and it is needless to say that the present invention can be implemented in various modes without departing from the gist of the present invention. is there.

[0034]

[Effect of device]

 As described above, the covering material for an indirect live-wire construction method of the present invention has the excellent effects that it is difficult to remove and that the work at the time of attachment and at the time of withstanding voltage test is easy.

[Brief description of drawings]

FIG. 1 is a perspective view showing a state in which an insulating coating material for a high-voltage cutout switch of the first embodiment is attached to a high-voltage cutout switch.

FIG. 2 is a perspective view showing an insulating molded body of Example 1 described above.

FIG. 3 is a perspective view showing a state where the resin insulating sheet of Example 1 is folded.

FIG. 4 is a development view thereof.

FIG. 5 is an explanatory view showing another method (insertion type) for attaching and detaching an insulating molded body and a resin insulating sheet to the above-mentioned Example 1,
(A) is the schematic perspective view, (B) is the AA sectional view.

6A and 6B are explanatory views showing another method for attaching and detaching an insulating molded body and a resin insulating sheet (improved insertion type), which is different from the first embodiment. FIG. 6A is a schematic perspective view thereof, and FIG. Partial end view, (C) is a partial end view of another form.

FIG. 7 is an explanatory diagram showing another method (attachment type) for attaching and detaching an insulating molded body and a resin insulating sheet to that of Example 1 described above.

FIG. 8 is an explanatory view showing another method (nesting type) of attaching and detaching an insulating molded body and a resin insulating sheet to those of Example 1;
(A) is a schematic perspective view thereof, and (B) is an explanatory view showing a case where the insulating molded body Y is inserted.

FIG. 9 is an explanatory view showing another method of attaching and detaching an insulating molded body and a resin insulating sheet (button detachable type) to that of the above-mentioned first embodiment.

FIG. 10 shows a high-voltage cutout switch 107 in which an insulating coating material 100 for a high-voltage cutout switch of the second embodiment is used.
It is a perspective view showing the state where it was attached to.

FIG. 11 is a plan view of the insulating molded body of Example 2 described above.

FIG. 12 is a front view thereof.

FIG. 13 is a right side view thereof.

FIG. 14 is a development view of the resin insulating sheet of the second embodiment.

FIG. 15 is a schematic view showing a conventional PC cover.

[Explanation of symbols]

10, 103 ... Insulation molded body, 14, 36, 119,
141 ... Fitting holes, 15, 16, 121, 123 ...
-Convex part, 17, 18, 125, 127, 129 ... Face tape knife of insulating molded body, 19, 139 ... Opening part, 30, 105 ... Resin insulating sheet, 33, 3
4,134,135,137 ... Male of surface tape of insulating sheet made of resin, 37, 151 ... Opening / closing part, 50, 1
07 ... High pressure cutout switch, 55 ... High pressure cutout switch lid.

Claims (2)

[Scope of utility model registration request] 1. An insulative covering material for an indirect live-wire construction method, comprising: a fitting member that is detachable from a covering material; and a soft insulating sheet that is detachable from the fitting member. . 2. A fitting member, which is detachably attached to the high-voltage cutout switch, and which is made of an insulating molded body having an opening for an opening / closing portion of the switch, and the fitting member detachably attached to the fitting member. An insulating covering material for an indirect live-wire construction method, comprising: a soft insulating sheet that covers a portion to be opened and closed.