JPH10117423A - Spacer for horizontal arrangement and overhead power transmission line using it - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent effectively the flexure of a spacer for horizontal arrangement which is nearly horizontally arranged, while the spacer clamps a correlative conductor or a conductor between lines by providing a suspended spacer attaching section at the central part of the spacer in the length direction. SOLUTION: A spacer 1 for horizontal arrangement is constituted by successively attaching insulators 3 and electric wire clamping tools 4 to both sides of an intermediate coupling metal fitting 2 and attaching arcing horns 5 to both sides of the insulators 3. The spacer 1 is also provided with a suspended spacer attaching section 10 at the position of the metal fitting 2. The attaching section 10 is composed of a tabular section having a bolt passing-hole, and a suspended spacer 50 is connected to the section 10. The spacer 50 has an electric wire clamping tool 4 on the upper end side of the insulators 3 and a hanging section 53 on the lower end side of the insulators 3 and clamps an electric wire C with the clamping tool 4. At the same time, uses a hanging section 53 by connecting the section 53 to the attaching section 10. In addition, arcing horns 5 are provided on both sides of the insulators 3.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a horizontal spacer and an overhead transmission line using the same.

[0002]

2. Description of the Related Art A conventional horizontal spacer is shown in FIG. The horizontal arrangement spacer 1 has a configuration in which an insulator 3 and an electric wire gripping tool 4 are sequentially mounted on both sides of an intermediate connecting metal fitting 2. In FIG. 6, reference numeral 5 denotes an arc horn attached to both sides of the insulator.

The horizontal arrangement spacer 1 having the above-mentioned structure is used by being attached to electric wires A and B between phases or lines arranged substantially horizontally. That is, the wires A and B between the phases or the lines arranged substantially horizontally are attached to the wires A and B by holding the wires A and B with the wire holding tool 4.

[0004]

However, the conventional horizontal spacer 1 has a problem that a large bending moment is applied to a substantially central portion in the longitudinal direction, and the position is easily damaged. That is, the horizontal spacer 1 has a total length of about 5 to 2
As a result, a large bending moment due to its own weight is applied to a substantially central portion in the longitudinal direction. When a wind pressure load or a load at the time of galloping vibration is applied to such a horizontally arranged spacer, a bending stress is repeatedly applied to a substantially central portion in the longitudinal direction, and the position is easily damaged.

[0005]

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems and to provide a horizontally arranged spacer and an overhead power transmission line using the same.

A horizontally arranged spacer according to the present invention is characterized in that, in a horizontally arranged spacer which grips conductors between phases or lines and is arranged substantially horizontally, a hanging spacer mounting portion is provided at an intermediate portion in a longitudinal direction. It is a feature.

In the overhead power transmission line according to the present invention, a horizontally arranged spacer provided with a hanging spacer mounting portion at an intermediate portion in a longitudinal direction is attached to an electric wire between phases or lines arranged substantially horizontally. A suspension spacer, which is suspended from an electric wire or a ground wire located above the spacer for horizontal arrangement, is connected to the spacer mounting portion.

[0008] By providing the suspension spacer mounting portion at the intermediate portion in the longitudinal direction as in the horizontal arrangement spacer according to the present invention, the suspension spacer can be easily mounted on the suspension spacer mounting portion.

Further, as in the overhead power transmission line according to the present invention,
For wires between phases or lines that are arranged almost horizontally,
Attach a spacer for horizontal placement provided with a suspension spacer attachment part in the middle part in the longitudinal direction, and connect a suspension spacer suspended from an electric wire or ground wire located above the spacer for horizontal placement to the suspension spacer attachment part. By doing so, the middle portion in the longitudinal direction of the horizontal arrangement spacer can be easily suspended by the suspension spacer, so that the horizontal arrangement spacer can be prevented from bending.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below in detail with reference to FIGS. FIG. 1 is a front view of a horizontal arrangement spacer 1 according to the present invention. Spacer 1 for horizontal arrangement
Is the same as the prior art in that the insulator 3 and the electric wire gripping tool 4 are sequentially attached to both sides of the intermediate connection fitting 2 and the arc horn 5 is attached to both sides of the insulator 3. The horizontal arrangement spacer 1 according to the present invention is characterized in that a suspension spacer mounting portion 10 is provided at the position of the intermediate connection fitting 2. The suspension spacer attaching portion 10 is a plate-like member provided with a bolt insertion hole (not shown). The hanging spacer mounting portion 10 is connected to a hanging spacer described later.

FIG. 2 and FIG. 3 are configuration diagrams in the case where the present invention is applied to a triangular one-circuit transmission line, in which three electric wires A, B, and C are installed in a steel tower 12 in a triangular shape. A horizontally arranged spacer 1 having a hanging spacer attaching portion 10 provided at an intermediate portion in a longitudinal direction is attached to electric wires A and B between phases arranged substantially horizontally. The suspension spacer mounting portion 10 of the horizontal arrangement spacer 1 includes a suspension spacer 50.
Is connected. As shown in FIG. 3, the suspension spacer 50 has the electric wire gripping tool 4 on the upper end side of the insulator 3 and the hanging part 53 on the lower end side of the insulator 3.
Is used to hold the electric wire C and to connect the hanging part 53 to the hanging spacer mounting part 10. In FIG. 3, reference numeral 5 denotes an arc horn provided with the insulator 3 interposed therebetween.

As described above, by supporting the intermediate portion of the horizontal positioning spacer 1 with the suspension spacer 50, the bending of the intermediate portion of the horizontal positioning spacer 1 can be effectively prevented.

FIGS. 4 and 5 show the case where the present invention is applied to a three-phase two-circuit transmission line. In recent years, there has been a demand for a compact transmission line in which the distance between one line 1L and two lines 2L is reduced in order to reduce the land width. When the distance between the one line 1L and the two lines 2L is reduced, there is a possibility that the wires between the lines may come into contact with each other due to wind swing or galloping vibration of the wires. Therefore, the wires 1A-2A between the lines,
The horizontal arrangement spacer 1 is attached to 1B-2B and 1C-2C to prevent the electric wires between the lines from coming into contact with each other. Spacer 1 for horizontal placement to be attached to the wire between these lines
Is also long, there is a problem that the intermediate portion is bent.

Therefore, in the present invention, a spacer provided with a hanging spacer mounting portion 10 in the middle portion is used as the horizontal positioning spacer 1, and a hanging spacer 50 is mounted on the hanging spacer mounting portion 10, so that the horizontal positioning spacer 1 is provided. Is supported by the suspension spacer 50.

That is, the horizontal spacer 1 connecting the electric wires 1A to 2A between the lines is a suspension spacer 50 suspended from the ground wires 1G and 2G disposed above the horizontal spacer.
The horizontal spacer 1 connecting the electric wires 1B-2B between the lines is supported by a suspending spacer 50 suspended from the electric wires 1A and 2A disposed on the upper portion thereof. The horizontal arrangement spacer 1 connecting the electric wires 1C to 2C of the electric wire 1C
B, 2B, are supported by hanging spacers 50.

As shown in FIG. 5, the suspension spacer 50 in the present embodiment has a link structure 60 at an intermediate portion, and is configured to be freely bent at the position of the link mechanism 60. Therefore, the electric wire 1A-
When 2A, 1B-2B and 1C-2C vibrate up and down,
It is possible to prevent abnormal stress from acting on the horizontal arrangement spacer 1 and the suspension spacer 50. In FIG. 5, the same parts as those in FIG. 1 or FIG.

The structure of the spacer for horizontal arrangement used in the present invention is not limited to that of the embodiment. For example, a hinge portion is provided at the position of the intermediate connecting bracket, and the electric wires between the lines are arranged in the line direction. You may make it movable. Further, the structure of the suspension spacer is not limited to the embodiment. Further, the installation position of the suspension spacer mounting portion provided at the intermediate portion in the longitudinal direction of the horizontal placement spacer is not particularly limited, but it is preferable to provide the suspension spacer attachment portion substantially at the center in the longitudinal direction of the horizontal placement spacer from the viewpoint of preventing bending.

[0018]

As described above, in the spacer for horizontal arrangement according to the present invention, the hanging spacer mounting portion is provided at the middle portion in the longitudinal direction, so that the hanging spacer can be easily mounted on the hanging spacer mounting portion. .

In the overhead power transmission line according to the present invention, a horizontal arrangement spacer provided with a suspension spacer attaching portion at an intermediate portion in a longitudinal direction is attached to an electric wire between phases or lines arranged substantially horizontally. Since the suspension spacer that is suspended from the electric wire or ground wire located above the horizontal placement spacer is connected to the spacer mounting part, the middle part in the longitudinal direction of the horizontal placement spacer can be easily suspended by the suspension spacer. it can. Therefore, bending of the horizontal arrangement spacer can be effectively prevented.

[Brief description of the drawings]

FIG. 1 is a front view showing an embodiment of a horizontal arrangement spacer according to the present invention.

FIG. 2 is a configuration diagram when the present invention is applied to a triangular one-circuit transmission line.

FIG. 3 is an enlarged front view of a main part of FIG. 2;

FIG. 4 is a configuration diagram when the present invention is applied to a three-phase two-circuit transmission line.

FIG. 5 is an enlarged front view of a main part of FIG. 4;

FIG. 6 is a front view of a conventional horizontal arrangement spacer.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Spacer for horizontal arrangement 2 Intermediate connection fitting 3 Insulator 4 Electric wire gripping tool 5 Arc horn 10 Spacer mounting part 50 Suspension spacer

Claims (2)

[Claims] 1. A horizontal positioning spacer which is disposed substantially horizontally by gripping conductors between phases or lines, wherein a hanging spacer mounting portion is provided at an intermediate portion in a longitudinal direction. 2. A horizontal placement spacer provided with a suspension spacer mounting portion at an intermediate portion in a longitudinal direction is attached to an electric wire between phases or lines arranged substantially horizontally, and a horizontal positioning spacer is provided on the suspension spacer mounting portion. An overhead transmission line, wherein a suspension spacer suspended from an electric wire or a ground wire located above the spacer is connected.