JPH01133509A - Repairing of disconnected-section of aerial wire strand, and armor rod and sleeve - Google Patents

Abstract

PURPOSE:To execute work with one man, by moving a mid-air stunt type machine to a disconnection section to permit the machine to run on the section after the section is reinforced with a sleeve, and by fitting the intermediate linear section of an armor rod on the sleeve to wind up the side of a wire end section with the armor rod. CONSTITUTION:Close to the strand disconnection section of an aerial wire 1, a mid-air stunt type machine 10 loaded with one worker, a sleeve 3, and an armor rod 2 with the linear central section 2a is moved. After the disconnection section is bound and the aerial wire 1 is fitted on the fitted-on section 3a of the sleeve 3 and is reinforced with, the mid-air stunt type machine 10 is run on the sleeve 3. Besides, the linear section 2a of the armor rod 2 is fitted on the fitted-on section 3a of the sleeve 3. Then, the mid-air stunt type machine 10 is moved and at the same time, the aerial wire 1 is wound up with the spiral section 2b of the armor rod 2. As a result, even a thin wire like an earthing conductor can be quickly repaired by one man.

Description

[Detailed Description of the Invention] [Field of Industrial Application] The present invention relates to a repair method for repairing a broken wire that occurs in an overhead wire, and an armor rod and sleeve used directly for the repair. be.

Conventional technology and problems Overhead power transmission lines and overhead ground wires made of twisted wires
Lightning strikes, vibration fatigue, etc. can cause the outermost wire to break.

FIG. 8 shows a state in which the wire 1a of such an overhead wire 1 is broken. If such a broken wire B is left as it is, it may not only cause corrosion due to the intrusion of rainwater, but also cause problems due to corona generation, or the broken wire 1a may hang down and cause a short circuit between phases. Therefore, it is most desirable to replace the broken span with a new line, but there are cases where it is difficult to perform such replacement immediately, and in such cases, conventionally
Using an armor rod 2' preformed into a spiral shape as shown in the figure, the winding was repaired so that the broken line B was located approximately in the middle as shown in Figure 10.

During the above repair work, a worker rides on a spacecraft from the steel tower to the accident point and wraps the armor rod 2-, but the repair target is the overhead ground wire. If the item is very small, only a small spacecraft can be used, and the work must be done by one person. It is very difficult to wind a long armor rod from its end by one person.

However, even if you try to wrap it from the center,
There is a problem in that the traveling roll of the spacecraft gets in the way, making it impossible to wrap the winding.

[Object of the Invention] The present invention solves the drawbacks of the prior art as described above, and even if the object is a silk-sized electric wire such as an overhead ground wire,
A method for repairing a broken wire of an overhead wire, which can repair the broken wire without any trouble, even when repairing the broken wire by one person using a small spacecraft, and use for the purpose. The purpose of the present invention is to provide an armor rod and a sleeve.

[Summary of the Invention] That is, the present invention attempts to wrap an armor rod around a broken wire of an overhead wire from the center side toward the end side. In order to prevent the running rolls from getting in the way, the mounting of the running rolls is characterized by forming a linear part that is longer than the spacing near the center of the armor rod, and the outer periphery of the electric wire near the center part is Similarly, when attaching the roll of the spacecraft, a sleeve longer than the spacing is fitted to reinforce it, and when winding the armor rod, the spacecraft rides on the fitted sleeve, and first the above-mentioned The gist is to fit the straight portion of the armor rod into the armor rod fitting groove formed in the sleeve, and to wrap the spiral portion of the armor rod from there toward the end. There it is,
This made it possible for one person to carry out repairs using a small spacecraft.

[Example] The present invention will be explained below based on Examples.

FIG. 1 is a sketch showing an example of the configuration of an armor rod 2 according to the present invention, in which a straight portion 2a is formed in the vicinity of the central portion (although this does not have to be strictly at the center); Both sides are preformed into a spiral part 2b, which is the same as a normal armor rod. Therefore, the length of the linear portion 2a of the armor rod 2 is the same as that of the spacecraft 1o shown in FIG.
The distance between the running rolls 11 and 11- is longer than that between the running rolls 11 and 11-.

On the other hand, in the present invention, a sleeve 3 as shown in FIG. 4 is prepared. The length of this sleeve 3 is also longer than the mounting interval of the traveling rolls 11.11'' of the above-mentioned spacecraft 10, and its cross-sectional shape is as shown in FIG. 5, which is the A-A cross section of FIG. The cross section is structured in a C-shape,
The - side is formed into an opening 3a extending in the longitudinal direction. This opening 3a serves as a guide port for properly fitting the sleeve 3 to the overhead wire 1 where the wire breakage has occurred.

Further, a fitting groove 3b is formed in the longitudinal direction of the side surface of the sleeve 3, and the linear portion 2a of the armor rod 2 can be fitted into the fitting groove 3b comfortably.

Regarding the material of the sleeve 3 configured as above,
It is sufficient that it can be attached to the overhead wire 1, and it may be made of metal such as aluminum or aluminum alloy, and may have a so-called chopstick box-like structure by providing a slide piece for closing the opening 3a. However, from the standpoint of ease of attachment, it is desirable to use a material that is elastic in itself, such as rubber or plastic, rather than metal.

Next, a procedure for repairing a broken wire portion of an overhead wire using the method according to the present invention will be described.

As shown in FIG. 8, when the wire 1a of the overhead wire 1 is broken, the above-mentioned armor rod 2 is attached to the spacecraft 10 shown in FIG.
Load materials such as Sleeve 3 and Sleeve 3, and proceed from the steel tower to the disconnection section B. When you reach the disconnection part B, the 6th
As shown in the figure, the disconnected portion B is bound with a binding wire 4. After binding, the sleeve 3 is attached to the overhead wire 1 using the opening 3a of the sleeve 3 as a guide port so that the approximately central portion of the sleeve 3 becomes the disconnected portion B as shown in FIG. If the sleeve 3 is made of rubber, the sleeve 3 can be easily attached by covering the electric wire from one end of the sleeve, as shown in FIG.

After the sleeve 3 is attached to the disconnection part B as described above, the spacecraft 10 is attached to the sleeve 3 as shown in FIG.
The linear portion 2a of the armor rod 2 is fitted and fixed into the fitting groove 3a of the sleeve 3. However, if it is easy to fit the linear portion 2a of the armor rod 2 into the fitting groove 3a, the spacecraft 10
This may be performed before or while riding on the sleeve 3, so that the spacecraft 10 rides on the sleeve 3. Before and after such a procedure, it is thought that workability problems are involved depending on the installation interval of the traveling rolls 11 and 11'' of the spacecraft 10, but the technical idea of the present invention has been changed It's not something you give.

Regardless of which method is used, once the linear portion 2a of the armor rod 2 is fitted into the fitting groove 3a of the sleeve 3 as shown in FIG. The two spiral portions 2b are sequentially wound around the overhead wire 1, and as shown in FIG. 3, when all the armor rods 2 are wound around the overhead wire 1, the repair of the broken wire is completed.

[Effects of the Invention] As described above, according to the repair method of the present invention, by employing a specially configured armor rod and sleeve, it is possible to quickly and efficiently repair a broken wire. As a result, the reliability of the repair part can be improved as a result of making repairs by one person using a spacecraft easier and more reliable. In today's world, where construction has become widespread and communication lines are expanding rapidly, the present invention has great significance as a timely proposal for maintenance allowances.

[BRIEF DESCRIPTION OF THE DRAWINGS] Fig. 1 is a sketch showing an example of an armor rod according to the present invention, Figs. 2 and 3 are explanatory drawings showing a repair situation according to the present invention, and Fig. 4 is a sleeve according to the present invention. FIG. 5 is a cross-sectional view taken along line A-A in FIG. FIG. 9 is a sketch showing the structure of a conventional armor rod, and FIG. 10 is a sketch showing the appearance of a conventional repair part. 1: Overhead wire, 2: Near-mar rod, 2a: Straight portion, 2b: Spiral portion, 3: Ni sleeve, 3a: Opening, 3b: Near-mar rod fitting groove. Agent: Patent Attorney Fujio Sato 4

Claims (5)

[Claims] (1) Place the wire breakage part of the overhead wire almost in the center, and make sure that there is an opening with a length longer than the space between the traveling rolls of the spacecraft and a cross section that is almost C-shaped, and an armor rod as described below. A sleeve having a fitting groove to be fitted is attached to the electric wire, and the spacer rides on the sleeve, and at the same time, the spacer is placed in the armor rod fitting groove so that the part near the center of the length of the spacer rides on the sleeve. Fitting the straight part of the armor rod formed in the straight part which is longer than the traveling roll interval of
A method for repairing a broken strand of an overhead wire, in which the spiral portion of the armor rod is then wrapped around the electric wire. (2) An armor rod for repairing broken wires of overhead wires, in which a straight portion is formed near the center of the armor rod, which is at least longer than the distance between the traveling rolls of the spacecraft used. Armor rod for repairing broken wires. (3) A sleeve having a length longer than the distance between the traveling rolls of the spacecraft, having an opening with a C-shaped cross section, and a fitting groove for fitting an armor rod extending in the longitudinal direction. (4) The repair method according to claim 1, wherein the object to be repaired is an optical fiber composite overhead ground wire. (5) The sleeve according to claim 3, wherein the material is rubber.