JPH01222611A - Exchanging method for tensioned device and fixture of multi-conductor - Google Patents

Abstract

PURPOSE:To shorten the working hours, by installing the fixtures of the multi- conductors which have a tension connecting part and hard wheel connecting part, to the powercarrying steel tower, by holding and pulling the multi-conductors power lines towards the steel tower side and exchanging the tensioned devices of the multi- conductors. CONSTITUTION:By hooking the fixtures of multi-conductors S by the hook 522 to the main wire 4 and the main wire are held firmly by the wire catching device 42. Hooking the one end of the two tensioned wire 11 to the steel tower arm 1, the other end is pulled and fixed to the hole 512 of the hard fixtures S through the tool 111. By mounting two hard wheels between the connecting holes 511 of the hard fixtures S and the vertical york 32, the actuating wire 61 should be wound up. By pulling the wire 61, the fixtures s is drawn towards the steel tower, the tensioned 41 is removed from the horizontal york. By bringing back the wire 61 slowly the yorks of the tensioned devices 31-33 are exchanged after the wire 11 is tensioned. Again, by mounting the hard wheel 6 to the york 32, the wire 11 is tensioned and the clamp 41 is mounted to the horizontal york 33. After pulling up the wire 11, the hard wheel 6 and the fixtures S are removed. By this reason, the working hour can be shortened.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a construction method for replacing a tensioning device installed when installing a multi-conductor conductor on a steel tower arm, and a multi-conductor fixing fitting used in this construction method.

[Prior art]

The conventional multi-conductor tension device replacement method is carried out in the following order.

(1) The worker removes all the spacers (approximately 15 spacers per phase and span, depending on the distance between the towers) attached to the conductor (main line) between the towers, and connects the jumper wire to the conductor between the towers. Remove from.

(2) Move the jumper wire removed from the conductor to the tower side.

(3) Attach a come-along metal fitting to the lower conductor, install multiple metal wheels between this come-along metal fitting and the metal fitting on the line side of the tension device, and operate the operating wire of this metal wheel to clamp the conductor. Remove from tension device.

(4) Next, the conductor (the conductor to which the clamp is attached) is attached to the steel tower arm by attaching the temporary fastening wire attached to the steel tower arm to the clamp and loosening the operating wire of the metal wheel. Temporarily fasten to.

Note that the metal wheel is generally removed after temporarily fixing the lower conductor and used for temporarily fixing the upper conductor.

(5) After that, attach a come-along metal fitting to the upper conductor, install multiple metal wheels between this come-along metal fitting and the metal fitting on the line side of the tension device, and operate the operating wire of this metal wheel to control the conductor. Remove the clamp from the tension device.

(6) Next, the conductor (the conductor to which the clamp is attached) is attached to the tower arm by attaching the temporary fixing wire attached to the tower arm to this clamp and loosening the working wire of the metal wheel. Tighten temporarily.

Furthermore, by loosening the operating wire of the metal wheel, the tensioning device is suspended from the tower arm and lowered to the ground.

(7) Raise the new tension device to the vicinity of the tower arm and attach it to the tower arm.

(8) A plurality of metal wheels are installed between the come-along metal fitting attached to the upper conductor and the line-side metal fitting of the tension device, and the operating wires of the metal wheels are operated to connect the come-along metal fitting and the line-side metal fitting. The distance between the temporary fixing wire and the metal fitting is narrowed, and the temporary fixing wire is removed from the conductor clamp, and the conductor clamp is connected to the run-side metal fitting of the tensioning device.

(9) Next, loosen the operating wire of the metal wheel, transfer the tension of the upper conductor to the tension device, and remove the temporary fixing wire and the metal wheel.

α01. After the upper conductor tension is completed, multiple metal wheels are installed between the come-along metal fittings attached to the lower conductor and the line-side metal fittings of the tension device, and the operating wires of these metal wheels are operated to connect the come-along metal fittings. The distance between the wire and the line-side metal fitting is narrowed, and the temporary fixing wire is removed from the conductor clamp, and the conductor clamp is connected to the run-side metal fitting of the tensioning device.

OI), then loosen the working wire of the metal wheel and transfer the tension in the lower conductor to the tension device.

Remove the ear and gold wheel.

After that, the come-along fittings, metal wheel, etc. are removed from the conductor, tension device fittings, and tower arm, and the jumper wire is returned to its original state.

0) When the jumper wire is attached to the main line (conductor), the spacer is attached to the main line (conductor).

[Problem to be solved by the invention]

However, in the conventional construction method, (1) 0 main lines (
(2) The jumper wire must be removed from the main line (conductor) and the jumper wire must be removed from the main wire (conductor) and the tension After the device is replaced, the device must be installed so that it will return to its original condition.As a result, there is an inconvenience in that it takes time and effort to replace the tension device. In particular, since the work of replacing the tensioning device involves a power outage, the fact that such work requires time and effort has the disadvantage of prolonging the power outage time, which is not desirable for a stable supply of power.

An object of the present invention is to eliminate such inconveniences.

[Means to solve the problem]

In order to solve the above-mentioned problems, the tensioning device replacement method of the present invention includes a multi-conductor power transmission line attachment structure in which a multi-conductor power transmission line is attached to a steel tower arm via a tensioning device, In a tensioning device replacement method for replacing a tensioning device, a multi-conductor fixing fitting having a tension wire connection part and a metal wheel connection part is prepared, each conductor of the multi-conductor power transmission line is grasped with a wire gripping tool, and the A multi-conductor fixing metal fitting is provided between the filament gripping device and the tensioning device, and the multi-conductor fixing metal fitting and the filament gripping device are connected by a first tightening rope, and the multi-conductor fixing metal fitting is connected to the tensioning device. The connecting part and the tower arm are connected by a second tightening rope via a restraining tool, and then a metal wheel is attached to the metal wheel connecting part of the multi-conductor fixing fitting and the tension device, respectively, and a metal wheel is attached to these metal wheels. The conductor is removed from the tension device by manipulating the wound actuation wire to narrow the gap between the tension device and the multi-conductor fixing fitting, and then the actuation wire is loosened to loosen the second tightening rope. After tensioning, remove the tension device from the tower arm and attach another tension device to the tower arm, and then attach a metal wheel to the metal wheel connection part of the multi-conductor fixing fitting and the tension device, respectively. , attaching the conductor to the tensioning device by manipulating an actuation wire wound around the safe to narrow the gap between the tensioning device and the multi-conductor fixing fitting, and then loosening the retaining tool. The tension of the conductor is transferred to the tension device.

In addition, the multi-conductor fixing fitting used in this tension device replacement method is equipped with a plate-shaped member and a plurality of mounting plates, and the plate-shaped member is installed horizontally, and the upper and lower surfaces of this plate-shaped member are a mounting plate is provided protruding from each of the plate-like members, a tension wire connection portion and a metal wheel connection portion are provided on the plate-like member, a conducting wire connection portion is provided on the mounting plate, and the multi-conductor connection portion is connected to a conductor of a multi-conductor power transmission line. A hook is provided at the upper end of this mounting plate to roughly match the arrangement.

[Action of the invention]

In the tension device replacement method according to the present invention configured as described above, since the multi-conductor fixing fitting is used, the multi-conductor arrangement does not collapse and the multi-conductor arrangement is fixed to the conductor between the steel towers. The tensioning device can be replaced without removing the spacer and jumper wires.

[Explanation of Examples]

Embodiments of the present invention will be described below based on the drawings.

In Figures 1 to 4, 1 is a steel tower arm fixed to a steel tower (not shown), 2, 2.2 is an insulator chain attached to the steel tower arm 1, and 31 is an insulator chain of 2°2.2. A large yoke 32 is fixed to the large yoke 31, and 33 and 33 are horizontal yokes fixed to the vertical yoke 32. This horizontal yoke 33.33 has the main line (conductor) of the multi-conductor power transmission line 4. 4. ... is a tension clamp 41.41. are connected via...

In addition, the above-mentioned insulator 2. 2. 2, the large yoke 31,
Said vertical yoke 32 and said horizontal yoke 33.33 constitute the tensioning device of the invention.

In the multi-conductor power transmission line attachment structure configured as described above, the tensioning device from the tower arm 1 can be replaced as follows.

(1) First, prepare the multi-conductor fixing fitting S. This multi-conductor fixture S will be explained based on FIG. 4. 51 is a plate-like member. In this plate member 51, reference numeral 511 indicates a through hole for connecting the metal wheel (corresponding to the “metal wheel connecting portion” of the present invention).
is formed in the center of the plate-like member 51, and 512
．． Reference numeral 512 denotes tension wire connection through holes (corresponding to the "tension wire connection portion" of the present invention), which are formed at both ends of the plate-like member 51. The metal wheel connection through hole 511 has a metal wheel 6 which will be described later.
An operating wire 6I is connected and fixed therein, and a tension wire 11.degree. 11 (corresponding to the "second tension rope" of the present invention) described later is connected and fixed in the tension wire connection through holes 512, 512.

Reference numerals 52 and 52 denote mounting plates, which are integrally formed at both ends of the plate-like member 51. This mounting plate 52.52 projects above or below the plate member 51. 521,
Mounting holes 521 are formed at the upper and lower ends of the mounting plates 52 and 52.

A tightening wire 421 (corresponding to the "first tightening rope" of the present invention), which will be described later, is connected and fixed to this attachment hole 521.

Reference numerals 522 and 522 are latching hooks, which are attached to the mounting plate 52.
It is pivoted at the top of the . The multi-conductor fixture S is hooked to the upper main line 4.4 via the hooks 522, 522.

(2) The latching hook 522 of the multi-conductor fixing fitting S.
522 to the upper main lines 4, 4 (see Figures 1 to 3).

(3) Each conductor 4, 4 of the multi-conductor power transmission line S. ... with a come-along metal fitting (corresponding to the "wire gripping tool" of this invention >42.42...) and connect the tightening wire 421 of this come-along metal fitting 42 to the mounting hole 521 of the multi-conductor fixing metal fitting S. Determine.

(4) After that, one end of the tightening wire (corresponding to the "second tightening rope" of the present invention) 11, 11 is connected and fixed to the connecting hole 512, 512 for the tightening wire of the multi-conductor fixing fitting S, and the other end is fixed. is connected and fixed to the steel tower arm 1. Note that a retaining tool (for example, a lever block) 111, 111 is interposed in the middle of this tightening rope 11°11.

Multi-conductor main line 4, 4. ... is adjusted by the retaining tools 111, 111.

(5) Then, the metal wheel connection hole 5 of the multi-conductor fixing fitting S
11 and the vertical yoke 32, respectively, with metal wheels 6°6 attached thereto. Then, the operating wire 61 is wound around these safes 6°6. Then, by pulling this actuating wire 61, the distance between the vertical yoke 32 and the multi-conductor fixing fitting S is narrowed, and the main wires 4, 4. Tension clamps 41, 41,...
・Remove from the horizontal yoke 33.33.

(6) Then, after gently loosening the operating wire 61 and tensioning the tightening rope (second tightening rope) 11°11, the tensioning device is removed from the tower arm 1; Then, a new tension device is lifted up by appropriate means and attached to the steel tower arm 1.

(7) Then, the metal wheel connecting hole 5 of the multi-conductor fixing fitting S
A metal wheel 6.6 is attached to each of the metal wheel 11 and the vertical yoke 32, and the operating wire 61 is wound around these metal wheels 6.6. Then, by pulling this actuating wire 61 and narrowing the distance between the vertical yoke 32 and the multi-conductor fixing fitting S, the book, v! 4,4. ... tension clamps 41, 41,
... are connected and fixed to the horizontal yoke 32.

(8), and then loosen this operating wire 61 and remove the metal wheel 6.
Remove 6th etc.

(9) After that, loosen the retaining tools 111, 111, and attach the multi-conductor fixing fitting S, the come-along fitting 42°42,...
Remove etc.

aψ, replace the jumper wire (not shown).

Note that FIGS. 5 to 7 show other multi-conductor fixing fittings T. In this multi-conductor fixture T, a plate member 51 is installed horizontally, and mounting plates 52 and 52 are welded to the upper and lower surfaces of both ends of the plate member 51.

〔Effect of the invention〕

The tension device replacement method of the present invention has a multi-conductor power transmission line attachment structure in which a multi-conductor power transmission line is attached to a steel tower arm via a tension device, and the tension device is replaced with the tension device from the tower arm. In the replacement method, a multi-conductor fixing fitting having a tension wire connection part and a metal wheel connection part is prepared, each conductor of the multi-conductor power transmission line is grasped with a wire gripping tool, and the wire gripping tool and the tension A multi-conductor fixing fitting is provided between the device, and the multi-conductor fixing fitting and the wire grasping tool are connected with a first tightening rope, and the tension connecting part of the multi-conducting fixing fitting and the steel tower arm are pulled. They are connected by a second tightening rope via a fastening tool, and then a metal wheel is attached to the metal wheel connection part of the multi-conductor fixing fitting and the tension device, respectively, and the actuation wires wound around these metal wheels are operated. to remove the conductor from the tensioning device by narrowing the gap between the tensioning device and the multi-conductor fixing fitting, then loosening the actuating wire to tension the second tensioning rope, and then tightening the tensioning device. is removed from the steel tower arm and another tension device is attached to the steel tower arm. Then, a metal wheel is attached to the metal wheel connection part of the multi-conductor fixing fitting and the tension device, and the metal wheel is wound around the metal wheel. The conductor is attached to the tensioning device by manipulating the tensioning wire to narrow the gap between the tensioning device and the multi-conductor fixture, and then loosening the retaining tool to reduce the tension in the conductor. It was designed to be transferred to a tension device.

In addition, the multi-conductor fixing fitting used in this tension device replacement method is equipped with a plate-shaped member and a plurality of mounting plates, and the plate-shaped member is installed horizontally, and the upper and lower surfaces of this plate-shaped member are a mounting plate is provided protruding from each of the plate-like members, a tension wire connection portion and a metal wheel connection portion are provided on the plate-like member, a conducting wire connection portion is provided on the mounting plate, and the multi-conductor connection portion is connected to a conductor of a multi-conductor power transmission line. A hook is provided at the upper end of this mounting plate to roughly match the arrangement.

Therefore, in the tension device replacement method according to the present invention, since the multi-conductor fixing fitting is used, the multi-conductor arrangement does not collapse, and the spacers and jumper wires attached to the conductors between the towers can be fixed. The tensioning device can be replaced without removing it, and as a result, the time and effort required to replace the tensioning device is reduced, work efficiency is improved, and safety is improved. In addition, since the time required for replacement work is shortened, the power outage time during work is also shortened (for example, by 30%).
This can contribute to a stable supply of electricity.

Further, the multi-conductor fixing fitting of the present invention includes a plate-like member and a plurality of mounting plates, and the plate-like member is installed horizontally, and mounting plates are respectively protruded from the upper and lower surfaces of the plate-like member. and the plate-like member is provided with a tension wire connection part and a metal wheel connection part, the mounting plate is provided with a conductor connection part, and the multi-conductor connection part is made to substantially correspond to the conductor arrangement of the multi-conductor power transmission line, Since a hook is provided at the upper end of this mounting plate, the tension device replacement method described above can be carried out easily.

[Brief explanation of the drawing]

The drawings are explanatory diagrams of the tensioning device replacement method and multi-conductor fixing fittings according to the present invention, and FIGS. 1 to 3 show the steps of the tensioning device replacement method, and FIG. Figure 2 is an enlarged partially omitted view of Figure 1. Figure 3 is a perspective view of the metal wheel installed. Figure 4 is a perspective view of the multi-conductor fixture. , FIGS. 5 to 7 show other multi-conductor fixing fittings, with FIG. 5 being a front view, FIG. 6 being a plan view, and FIG. 7 being a left side view. S... Multi-conductor fixing fitting 1... Steel tower arm 11... Tightening wire (second tightening rope) 111
... Retaining tool 2 ... Insulator chain 4 ... Main wire (conductor) 42 ... Come-along fitting (wire gripping tool) 42
1... Tightening wire (first tightening rope) 51...
- Plate member 511... Metal wheel connection hole (metal wheel connection part) 52...
・Mounting plate 522...Latching hook 512...Tension connection hole (tension connection part) 6...
Metal wheel 61... Operating wire patent applicant Chubu Electric Power Co., Ltd. Patent issuer
Patent applicant Tokai Electric Works Co., Ltd. Patent applicant
Asahi Malleable Iron Co., Ltd. Representative Patent Attorney Sue No
Yuji Figure 3 Figure 4 Procedure master book (formula) 1. Display of case 1986 patent application No. 048080
No. 2, Name of the invention Relationship between the tension device replacement method and the multi-conductor fixing metal fitting 3, the case of the person making the amendment Patent applicant address 1 Higashishinmachi, Higashi-ku, Nagoya, Aichi Prefecture Name Chubu Electric Power Co., Inc. Representative Kamezo Matsunaga Department Address: 20-31 Sakae-Shimome, Naka-ku, Nagoya City, Aichi Prefecture Name
Tokai Electric Works Co., Ltd. Representative Tsuka 1) Part 1 Address: 14-547 Horinouchi, Kikugawa-cho, Ogasa-gun, Shizuoka Prefecture; Agent: 29-5-218 Motoshiro-cho, Hamamatsu-shi, Shizuoka Prefecture 430; Date of amendment order: May 1988 Month 31st (all shipping dates). 6. Subject of amendment (1) 6 Drawings (2) 0 Document certifying authority of representation 7. Contents of amendment (1), as shown in the engraving and attached sheet of the drawing originally attached to the application (no changes to the content). (2) Attach the power of attorney as shown in the attached sheet. 1000 3σε (Ho Zheng Shu (spontaneous)

Claims (2)

[Claims] (1) In a tension device replacement method of replacing the tension device from the tower arm in a multi-conductor power transmission line attachment structure in which a multi-conductor power transmission line is attached to a tower arm via a tension device, the tension device replacement method comprises: A multi-conductor fixing fitting having a connecting part and a metal wheel connecting part is prepared, and each conductor of the multi-conductor power transmission line is gripped by a wire gripping tool, and a multi-conductor fixing fixture is provided between the wire gripping tool and the tensioning device. A fixing fitting is provided, and the multi-conductor fixing fitting and the wire gripping tool are connected by a first tightening rope, and a second tightening rope is used to connect the tension connecting part of the multi-conductor fixing fitting and the steel tower arm via a retaining tool. They are connected by a tightening rope, and then a metal wheel is attached to the metal wheel connection part of the multi-conductor fixing fitting and the tension device, respectively, and the actuation wires wound around these wheels are operated to connect the tension device. The conductor is removed from the tensioning device by narrowing the gap between the conductor and the multi-conductor fixing fitting, and then the actuating wire is loosened to tension the second tensioning rope, and the tensioning device is removed from the tower arm. Attach another tension device to the tower arm, then attach a metal wheel to the metal wheel connection part of the multi-conductor fixing fitting and the tension device, and operate the operating wire wound around this metal wheel. The conductor is attached to the tensioning device by narrowing the gap between the tensioning device and the multi-conductor fixing fitting, and then the tensioning force of the conductor is transferred to the tensioning device by loosening the retaining tool. A distinctive tension device replacement method. (2) In a multi-conductor power transmission line attachment structure in which a multi-conductor power transmission line is attached to a tower arm via a tensioning device, a multi-conductor fixing metal fitting used when replacing the tensioning device from the tower arm, The plate-shaped member is provided with a plurality of mounting plates, the plate-shaped member is installed horizontally, and the mounting plates are respectively protruded from the upper and lower surfaces of the plate-shaped member, and the plate-shaped member is provided with a tension connecting portion. and a metal wheel connecting part, a conducting wire connecting part is provided on the mounting plate, the multi-conductor connecting part is made to approximately correspond to the conductor arrangement of the multi-conductor power transmission line, and a hanging hook is provided on the upper end of the mounting plate. A multi-conductor fixing fitting characterized by: