JP2003189433A - Distribution line construction method and tool used therefor - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To attain labor saving and high efficiency while ensuring safety in distribution line-related construction which a plurality of workers conventionally conducted on a high lift work platform such as a bucket. <P>SOLUTION: The distribution line-related construction is conducted either by holding distribution equipment/material such as electric wires 4 or insulators 50 with an insulation operating rod 3 fixed onto a high lift work platform 100, a sub boom 13 for a winch of a high-altitude working vehicle or an electric- pole arm 70, or by tentatively leaning it against the electric wire 4 with the insulation operating rod 10 suspended on the electric wire. A tool can be used which is fitted with a hook 101 for latching the insulation operating rod 10 having a processing member for construction or the like at its front end on the electric wire. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

TECHNICAL FIELD OF THE INVENTION The present invention is more than 600V to 22V.
It is related to distribution line related work such as installation of protective pipes on kV high-voltage overhead distribution lines, replacement of tension insulators, and opening and reconnecting of spans, which are indispensable in the bypass method, with or without energization.

[0002]

2. Description of the Related Art Conventionally, in such distribution line-related work, a plurality of workers who are on a pole or on an aerial work platform such as an aerial bucket perform work.

For example, in the construction of an indirect live line with a high-voltage overhead distribution line of over 600 V to 22 kV, as shown in FIG. 8, a lifting type aerial workbench 1 having a winch sub-boom 13 is provided.
00, a worker b1 that holds an insulating operation rod 3 having an operation rod 2 for controlling the opening and closing of an annular electric wire support mechanism 1 at its tip so that the electric wire 4 does not shake, and a work piece attached to the tip. Insulated operating rod 7 with operating rod 6 for member 5
Is performed by a plurality of workers including the worker b2 who removes the coating of the electric wire by operating.

In addition, in the work of attaching and removing a protective tube for construction or an insulated wire protective tube, which is usually called a poly pipe, to and from a high-voltage line, in recent years, efficiency has been improved by using a hydraulic poly pipe inserter. However, in this construction, one of the workers on the bucket holds the hydraulic poly pipe inserter and the other one holds the poly pipe main body and inserts it into the hydraulic poly pipe inserter. By doing so, the poly pipe is attached and removed.

[0005] Furthermore, Fig. 9 shows an indirect live-line construction for the so-called bypass method, in which the electric wire is opened in the middle of the span before the work and is reconnected after the work is completed. As shown, the wire tensioners 11 are used on both sides of the pillar to shut down the pillar to be worked. After the electric wire is gripped by the left and right clamps 9, 9 and the tension of the electric wire is received by the belt 81, the electric wire between the left and right clamps 9, 9 is cut or connected.

In actual work, one of the workers on the workbench such as a bucket at a high place supports the tensioned wire portion 82 of the wire tensioner 11 by the insulating operation rod 60, and the workbench such as a bucket at a high place is supported. The second worker attaches the left and right clamps 9, 9 to the electric wire by using the insulating operation rod 3 shown in FIG. When the second worker attaches the left and right clamps 9, 9 to the electric wire, the tensioner 11 is prevented from dropping, or the electric wire is prevented from swaying when the electric wire is cut, or the clamps 9, 9 are easily attached to the electric wire. Two or more workers were required to install it.

Further, the replacement work of the tension insulator is carried out by holding the existing tension insulator and operating the tension insulator while performing the wire tensioning operation of the tension device for transferring the tension applied to the insulator to the tensioner side. Since it is necessary to remove the pin connecting to the utility pole, two or more workers do this.

[0008]

In recent years, labor saving work has been studied as part of the efficiency improvement of distribution line related construction work. The problems to be solved by the present invention are conventionally
It is to realize the labor saving and efficiency improvement of the distribution line related work that was performed by a plurality of workers on a work platform such as a bucket while ensuring safety.

[0009]

According to the present invention, since the electric wire cannot be directly held in the work related to the distribution line in the energized state, the work for supporting the electric wire in order to suppress its swing, the electric wire Auxiliary personnel are required to insulate the work platform at a high place, hold an automatic machine, and ensure safety, which is an obstacle to labor saving of workers.

According to the present invention, it is an effective measure to achieve labor saving of distribution line-related construction work by enabling safe support of distribution line materials such as electric wires or insulators and support of tools without auxiliary personnel. It was completed based on the recognition that it can become.

That is, the present invention is more than 600V to 22V.
For distribution line related work in the energized state of a kV high voltage overhead distribution line, direct workers are required without the need for auxiliary personnel such as work for insulating the wires from the workbench, holding automatic machines, and ensuring safety. Is it an independent distribution line construction method using only electric wires or insulators or other distribution equipment materials with the insulated operating rod fixed to the aerial work platform or winch sub-boom of aerial work platform or the pole arm? Or, it is a distribution line construction method in which an insulation operating rod is suspended on an electric wire, and the electric wire is temporarily deposited and the related work is performed.

As a tool for carrying out the distribution line construction work method by only the direct worker, a tool provided with a hook for engaging the electric wire with an insulating operation rod having a processing member for construction at the tip is used. can do. During construction,
By locking this hook to the electric wire, temporarily depositing the insulating operation rod, and detaching it from the electric wire each time it is needed, the temporary holding, which was conventionally performed by an assistant, becomes unnecessary.

Further, the second means for carrying out the distribution line construction work method by only the direct worker is a winch table for use in lifting various members and tools attached to the aerial work table. By attaching a tool for fixing the insulating operation rod to the sub-boom attached to the above, a work platform at a high place, or an arm of an electric pole, it is also possible to fix the insulating operation rod having an operation rod having an electric wire support portion at the tip.

[0014]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to Examples.

<Embodiment 1> FIG. 1 (a) corresponds to FIG. 8 showing a conventional example, and shows an insulated operating rod provided with the hook tool of the present invention. Similar to the conventional example shown in FIG. 8, the insulating operation rod 10 has an operating rod 2 for operating the annular electric wire support mechanism 1, and further, the insulating operation rod 10 is suspended on the electric wire 4 for temporary deposit. It has a hook tool 101 for.

As shown in FIG. 1 (a), during the construction of an indirect live line for a high voltage overhead distribution line, the insulation operating rod 10 is attached to the hook tool 1
By using 01, the wire 4 is suspended and temporarily deposited, and the wire is removed from the wire 4 each time it is needed, and thus the temporary holding which is conventionally performed by an assistant is unnecessary. The mechanism provided at the tip of the insulating operation rod is not limited to the electric wire support mechanism 1, but may be, for example, the construction work member 5 in the conventional example shown in FIG. 1B.

<Embodiment 2> FIG. 1B shows an aerial workbench 1
00 is attached to the sub-boom 13 of the winch base 12 used to lift various members and tools attached to the winch base 12, and the insulation operation rod 3 is fixed by the fixing tool 20 to remove the electric wire by the worker b2. Indicates the status.

The fixing tool 20 rotates the sub-boom 13 of the winch base 12 toward the electric wire 4 side, and fixes the insulating operation rod 3 whose end engaging portion is engaged with the electric wire 4 while the worker b.
2 Work by one person.

FIG. 2 shows the structure of the fixed tool 20. As shown in the figure, the fixing tool 20 includes a mounting portion 201 for hugging and fitting the sub-boom 13 shown in FIG. 1B, a fixing rod 202 fixed to the upper surface thereof, and mounting of an insulating operation rod. Attachment part 2 to part 203 and fixed rod 202
04 and a member 205. Therefore, the mounting portion 201 of the fixed tool 20 is fitted to the sub boom 13,
After fixing the mounting portion 204 of the member 205 to the fixing rod 202 to the fixing rod 202, and then fixing the insulating operation rod to the mounting portion 203, the insulating operation rod 3 as shown in FIG. The wires can be supported in an insulated state. Therefore, with the insulation operating rod 3 fixed, one worker b2 can perform the work of stripping the electric wire.

<Embodiment 3> FIG. 3 shows an example in which the fixing tool shown in FIG. 2 is used for the work of replacing the tension insulator. The replacement work of the tension insulator is carried out by holding the insulator 50 and connecting the insulator 50 to the electric pole while performing the wire drawing operation of the tension wire portion 82 for transferring the tension applied to the insulator 50 to the tensioner 11. It is necessary to remove the pin (not shown)
Although it was performed by two or more workers, by fixing the plurality of insulating operation rods 3 to the fixed tool 20 as shown in FIG. 3, it becomes unnecessary for another worker to hold the existing tension insulator 50.
The work of removing the wire and the pin can be performed by one worker b2.

<Embodiment 4> FIGS. 4A and 4B show a fixing tool for fixing an insulating operating rod to an arm of an electric pole. FIG. 4A is a perspective view thereof, and FIG. 4B is a side view thereof. This fixed tool 20
Is a mounting portion 201 for hugging and fitting the arm 70 of the electric pole.
And is fixed to the arm 70. Other configurations are the same as those of the fixed tool shown in FIG.

As described above, by mounting the fixing tool for the insulated operating rod by using the arm 70 of the electric pole, the fixing tool can be mounted even when the work place is small and the aerial work vehicle cannot be used. It is possible to perform work related to distribution lines. In this case, the worker climbs the utility pole and uses the torso to perform the work.

<Embodiment 5> FIG. 5 shows a fixing tool for fixing an insulating operating rod to an aerial work platform of an aerial work vehicle.
(A) is the perspective view, (b) is a figure which shows a mounting state. This fixed tool 20 is used for an aerial work platform 1 of an aerial work vehicle.
00 has a mounting portion 201 that fits on the side wall of the work table 100. The mounting tool 201 is fixed to the side wall of the high-altitude work table 100, that is, the bucket liner by using a screw or the like, so that the fixing tool 20 is mounted at a high position. Fix to workbench 100. Other configurations are the same as those of the fixed tool shown in FIG.

As described above, by installing a fixing tool for the insulating operating rod in addition to the sub-boom 13 of the winch shown in FIG. 1B, the range in which the insulating operating rod can be fixed and used can be expanded. It becomes possible for one worker to perform work related to distribution lines.

<Embodiment 6> In the embodiment shown in FIG. 6, when installing a protective tube for construction for preventing electric shock in construction work,
Alternatively, when a tree or the like comes into contact with the electric wire, a hydraulic poly pipe inserter is used as a tool for one-person work when the protective tube 14 for preventing abrasion of the electric wire is attached to the electric wire 4.
By holding this on the work table at a high place with a fixed tool, only one worker on the work table at a high position can handle it.

Reference numeral 30 shown in FIG. 6 shows an insulating fixing tool according to an embodiment of the present invention, which is fixed to the winch boom 13 of the aerial work platform 100 shown in FIG. 1 and covers the electric wire 4. The connecting portion 141 of is supported in an insulated state.

The fixed tool 30 is the sub boom 13 of the winch.
And a fixing portion 310 and an inserter 320 formed at the tip thereof.
And a connecting portion 312. The fixing portion 310 fits the sub-boom 13 of the winch and is fixed by the fixing rod 311. The inserter 320 is remotely operated by the hydraulic mechanism 321. By configuring the inserter 320 so that it can move in any direction with respect to the fixed portion 310, the inserter can be attached to the wire from any direction. As the inserter 320, Japanese Patent Laid-Open No. 10-164
Those disclosed in Japanese Patent No. 718 can be used.

As described above, since the working portion including the electric wire 4 can be securely fixed and supported in an insulated state without manpower, the inserter 3
20 can be attached and the protective tube 14 can be attached to the electric wire 4 by a single worker, so that safe construction can be performed.

<Embodiment 7> FIG. 7 shows the present invention for the so-called bypass method, in which the electric wire is opened in the middle of the span before the work and is reconnected after the work is completed. The example applied to the indirect live-line construction of (a) is a front view and (b) is a cross-sectional view of a hook 404.

This example corresponds to the conventional wire tensioner shown in FIG. 9, in which the belt portion 81 in FIG. 9 is held by the fixed support rod 40. The support rod 40 is a connecting body for connecting the left and right clamps 9, 9 in a fixed state, and includes a movable portion 402 and a stretched wire portion 403 with the support portion 401 interposed therebetween. The movable portion 402 is expanded and contracted by rotating the insulating operation rod 60 connected to the lower portion of the stretched wire portion 403 around its axis. As the clamp 9, the actual fair 7-36416
Those disclosed in the publication can be used.

The supporting rod 40 is securely held in the supporting portion 401 by the insulating supporting rod 60 held by the fixing tool 20 fixed to the sub boom 13 of the winch of the aerial work platform 100 shown in the second embodiment. . Further, conventionally, when the wire tensioner 11 shown in FIG.
Another worker was supporting the wire-stretching portion 82 of the wire tensioner 11 in order to prevent the wire from dropping, but in this embodiment, the hook 404 capable of temporarily storing the wire is attached to the support rod 40 as a connecting body. ing. The hook 404 has a storage portion 404a capable of storing the electric wire 4, and an open portion of the storage portion 404a is openably closed by a gate 404c having a spring 404b at the base end.

Since the hook 404 is provided, an auxiliary person is not required, so that only one worker who is on the work platform 100 can perform the work safely.

[0033]

According to the present invention, among the distribution line-related work currently being carried out by a plurality of persons, for example, a unit work such as gripping a plurality of insulating operation rods is held by an aerial workbench or an arm. Alternatively, by temporarily depositing the wires, it is not necessary to have a worker who keeps them all the time during the work, and it is possible to realize one person for the work related to the distribution line and realize the efficiency of the work.

In recent years, the importance of cost reduction has increased,
About uninterruptible construction methods such as indirect live line construction method and bypass construction method,
From the standpoint of further efficiency, one person can work on the bucket so that a smaller number of people can handle it.

[Brief description of drawings]

FIG. 1 is a view corresponding to a conventional indirect live-line construction mode shown in FIG. 8, in which (a) is a first embodiment of the present invention;
Part (b) shows the second embodiment.

FIG. 2 shows a structure of a fixing tool according to a second embodiment of the present invention.

FIG. 3 shows a third embodiment of the present invention.

FIG. 4 shows a fourth embodiment of the present invention.

FIG. 5 shows a fifth embodiment of the present invention.

FIG. 6 shows a sixth embodiment of the present invention.

FIG. 7 shows a seventh embodiment of the present invention.

FIG. 8 shows a form of construction of a conventional indirect live line.

FIG. 9 shows a form of conventional indirect live-line construction.

[Explanation of symbols]

1 Ring-shaped electric wire support mechanism 2 Operation rod for electric wire support mechanism 3 Insulation operating rod for electric wire support mechanism 4 Electric wire 5 Processing member for construction 6 Operation rod for processing member for construction 7 For processing member for construction Insulation operation rod 8 Construction cable 9 Clamp 10 Insulation operation rod 101 for temporary deposit according to the embodiment of the present invention Hook tool 11 for temporary deposit of insulation operation rod 11 Tensioner 12 Winch base 13 Winch sub-boom 14 Protection Pipe 20 Fixed tool 30 Fixed tool for construction protective tube inserter or insulated wire protective tube inserter 40 Support rod 401 Support part 402 Movable part 403 Tension wire part 404 Hook 50 Insulator 60 Insulation operation for supporting the wire tension device Pole 70 utility pole arm 100 aerial work platform b1, b2 workers

   ─────────────────────────────────────────────────── ─── Continued front page    (72) Inventor Kentaro Kawamura             2-82 Watanabe Dori, Chuo-ku, Fukuoka-shi, Fukuoka               Kyushu Electric Power Co., Inc.

Claims (6)

[Claims] 1. In a work related to a distribution line in an energized state in a high-voltage overhead distribution line of over 600 V to 22 kV, work for insulating the wire from a work platform at a high place, holding an automatic machine, ensuring safety, etc. This is a method of constructing a single distribution line by direct workers without the need for auxiliary personnel.Insulating operation rods are fixed to the work platform of aerial platforms or winch sub-booms of aerial platforms or the poles of utility poles. Alternatively, a distribution line construction method in which an electrical distribution material such as an insulator is held or an insulation control rod is suspended on an electric wire, and the wire is provisionally deposited to perform distribution line related work. 2. In a distribution line related work of a high voltage overhead distribution line of over 600 V to 22 kV in an energized state, such as work for insulating the wire from a work platform at a high place, holding an automatic machine, and ensuring safety. It is a method of constructing a single distribution line by direct workers without the need for auxiliary personnel, in which a plurality of insulation operation rods are fixed to a work platform at a high height, and the distribution equipment materials such as wires or insulators are held. A distribution line construction method that performs the distribution line related work while maintaining the condition before performing the distribution line related work. 3. In a distribution line related work in an energized state of a high voltage overhead distribution line of over 600 V to 22 kV, work for insulating the wire from a work platform at a high place, holding an automatic machine, ensuring safety, etc. It is a tool for single distribution line related work by only direct workers without requiring auxiliary personnel, and has a connecting body that connects clamps at both ends for gripping an electric wire. A wire tension tool comprising a hook for suspending a wire on an electric wire and a support portion for attaching an insulating operation rod. 4. In a work related to a distribution line in an energized state in a high-voltage overhead distribution line of over 600 V to 22 kV, work for insulating the wire from a work platform at a high place, holding an automatic machine, ensuring safety, etc. A tool for independent distribution line-related work by direct workers only, without the need for auxiliary personnel, for attaching an insulated operating rod to a winch sub-boom of an aerial work platform or an aerial work platform or an electric pole pole arm. A tool having the structure of. 5. In a distribution line related work of energizing a high voltage overhead distribution line of over 600 V to 22 kV, work for insulating the wire from a work platform at a high place, holding an automatic machine, ensuring safety, etc. It is a tool for single distribution line related work by only direct workers without the need for auxiliary personnel, and includes a protective tube inserter for construction or an insulated wire protective tube inserter.
A tool with a structure for attaching to a winch sub-boom of an aerial work vehicle. 6. In a work related to a distribution line in an energized state of a high-voltage overhead distribution line of over 600 V to 22 kV, work for insulating the wire from a work platform at a high place, holding an automatic machine, ensuring safety, etc. A tool for independent distribution line related work by only direct workers without requiring auxiliary personnel, which has a hook part for suspending the insulation operation rod on the wire and temporarily depositing it. Hook tool.