JPH0536320A - Insulator device and fastening conductor to same device - Google Patents

Abstract

PURPOSE:To fasten wires to an insulator device easily without generating mixed contact or contact in fastening work by forming yoke metals to be laterally long or vertically long instead of being a polygon formed of lines connecting multiple conductors, and fastening the conductors in order in the vertical direction. CONSTITUTION:Every two lines of insulator lines 1 are installed to an arm T', and & yoke metal 2 is installed at the other end of the lines 1 separated by an upper and a lower yoke metal members. The metals 2 are, therefore, completed by assembling the upper and lower yoke metal members after completing installation of the four lines of the lines 1 to the arm T'. After extending lines (1)-(4) to a steel tower T, they are installed to the metal 2 in the order of the line (1) line (2) line (3) line (4). Fastening work is performed, therefore, in the order in the vertical direction from the top down. The metal 2 is formed laterally long or vertically long instead of being a polygonal form formed by lines connecting the multiple conductors L, and because the conductors L are installed to the metal 2 in the order in the vertical direction, thereby mixed contact, contact of a mother wire with an insulator device, or entanglement of the device can be prevented effectively.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an insulator device, and more particularly to an insulator device suitable for a multiconductor for ultra high voltage power transmission.

[0002]

2. Description of the Related Art Conventionally, a transmission voltage of 500,000 volts or 100
As in the case of 10,000 volts, the number of conductors (wires) attached to an insulator device for ultra-high voltage power transmission is so-called multi-conductor consisting of a plurality of wires such as 6 or 8. The multiconductor is attached to the other end of the insulator, one end of which is attached to an arm of a power transmission tower (hereinafter referred to as a steel tower), via a yoke fitting.

By the way, the shape formed by connecting the respective conductor positions after the multiconductor is attached to the steel tower is, for example, a regular hexagon for 6 conductors and a regular octagon for 8 conductors. In the case of the fixed type in which the entire yoke fitting is integrated into one rigid body, the regular hexagon and the regular octagon are obtained by balancing the yoke fitting when all the conductors are attached to the yoke fitting.

The work of mounting the multi-conductor on the steel tower, that is, the so-called tight-fitting work, is carried out by mounting the upper conductor on the yoke fitting, then mounting the lower conductor on the yoke fitting, and moving in parallel from top to bottom. . The sequence of this wire binding work will be further described with reference to FIG. 3, which is used in the embodiment of the present invention. Tightening work is performed in the order of Nakauchi underline → Underground underline → Underground underline (hereinafter, each line is referred to as line to line).

[0005]

However, in the above-mentioned conventional insulator device, the contact between the electric wires contact each other at the time of the tight-tie work and the contact between the wire used when pulling the conductor into the tower, the so-called parent wire, and the insulator connection. In order to avoid the above, and to prevent twisting of the insulator device caused by uneven force applied to the insulator device, there has been a drawback that the wire tightening work becomes complicated and complicated.

[0006] To describe the mixed contact with reference to Fig. 3 described above, first of all, the wire tightening work is performed by wire tightening, but at this time, the yoke fitting is largely tilted forward and the wire sags, so-called sag. Becomes larger than the line, and there is a risk of contact with the line when the line is tight.

The contact between the parent wire W and the insulator string 1 will be described with reference to the plan view of the steel tower T of FIG. 4. If the yoke fitting 10 is smaller than the installation width of the insulator string 1, the metal of the parent wire W will be reduced. Depending on the mounting position of the vehicle P, the parent wire W may come into contact with the insulator wire 1.

Therefore, the present invention has been made in order to solve the above-mentioned problems, and an object thereof is to easily perform a tie line without causing contact or contact during the tie work. An object of the present invention is to provide an insulator device and a method of tightening the wire to the insulator device.

[0009]

In order to achieve the above object, the apparatus of the present invention has a polygonal shape formed by a wire connecting an insulator string having one end attached to a power transmission tower and a position where a conductor is arranged. A yoke fitting attached to the other end of the insulator chain, which is formed by horizontally extending the polygonal shape by a predetermined length with the vertical interval invariant more than when the polygon is a regular polygon. It is characterized by having. Then, the polygon formed by the insulator string having one end attached to the power transmission tower and the line connecting the positions where the conductors are arranged has a more constant horizontal spacing than when the polygon is a regular polygon. Is characterized by having a yoke fitting which is formed by extending a predetermined length in the vertical direction and is attached to the other end of the insulator chain. Also,
The polygon formed by the line connecting the insulator string with one end attached to the power transmission tower and the position where the conductor is arranged has a vertical or horizontal gap more than when the polygon is a regular polygon. As a constant, the yoke fitting is formed by extending a predetermined length in the horizontal direction or the vertical direction, and is attached to the other end of the insulator string, and the conductor provided on the yoke fitting is opposite to the insulator string. And a diaphragm member having a regular polygon in which a polygon formed by a line connecting the conductors is shortened by shortening the interval between the conductors in the horizontal direction or the vertical direction, which are opposed to each other, by the predetermined length. It is characterized by having. Further, the order of attaching the conductors to the yoke fitting is characterized in that the conductors arranged in the vertical direction are attached, and the conductors located below are attached after the conductors located above.

[0010]

In the above structure, the polygon formed by the line connecting the positions of the conductors attached to the yoke fitting is horizontally or vertically longer than when the polygon is a regular polygon. Then, this horizontally long or vertically long polygon is narrowed down by the diaphragm member by the horizontally long or vertically long polygon to become a regular polygon. Further, the tight-tie order is sequentially performed for each conductor in the vertical direction.

[0011]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to the drawings. FIG. 1 is a plan view showing a state where an insulator device a according to an embodiment of the present invention is attached to an arm T ′ of a steel tower T. A plurality of insulator devices a are provided on the arm T ′, but only two of them are shown here for the sake of simplifying the drawing. The same components as those in FIG. 4 are designated by the same reference numerals.

An insulator station 1 consisting of four stations has one end attached to the arm T ′ and the other end provided with eight conductors L.
The yoke metal fitting 2 is attached. The yoke fitting 2 is
As shown in FIG. 2, the plate-shaped yoke fitting pieces 2a (2a ') are combined so that the overall shape is a substantially oblong rectangle, and two conductors are attached to each of the left and right sides and the upper and lower sides. It has a hole (not shown). Lines in the drawing show lines attached to these conductor mounting holes.

The exact arrangement relationship between the lines is that the lines are the same, the lines are the same, the lines are the same, and the lines are the same, and the intervals between the lines are the same. And the line-to-line and line-to-line spacing is
It is configured to be longer than the length of one side by a predetermined length. That is, the upper and lower yoke fitting pieces 2a ', 2a' provided between the lines and between the lines are configured to be longer than one side of a predetermined regular octagon. Therefore,
The polygon formed by the lines connecting the lines to in the yoke member 2 has a shape of a predetermined regular octagon, in which the upper and lower sides in the horizontal direction are extended by a predetermined length.

The throttle member 3 is provided on the conductor L, which is separated from the yoke fitting 2 by a predetermined distance and is in the direction opposite to the insulator series 1. As shown in FIG. 3, the throttle member 3 is composed of two types of rod-shaped clamps 3a and 3b having different lengths. The clamps 3a and 3b are provided with holding portions for holding conductors at both ends. ing.

The clamps 2a are equal to the length of one side of a given regular octagon and are provided between lines, and between the lines, while the clamps 3b are provided up to the opposite vertices of a given regular octagon in the horizontal direction. Equal to the distance and provided between lines and between lines. Therefore, the line connecting the lines of the conductor L to which the diaphragm member 3 is attached has a predetermined regular octagonal shape as shown by the alternate long and short dash line in FIG.

Next, the wire tightening work of the insulator device a according to this embodiment will be described. First, two pairs of insulators 1 (1
Attach a, 1b) to arm T '. At this time, the yoke fitting 2 is attached to the other end of the insulator connection 1 and the yoke fitting piece 2 of
They are attached separately at a'and 2a '. Therefore, after the yoke fitting 2 has been attached to the arm T'of the four pairs of insulators 1, the upper and lower yoke fitting pieces 2a ',
2a 'is assembled and completed.

Next, after extending from the wire to the steel tower T, the wires are attached to the yoke fitting 2 in the order of line → line → line → line. In other words, every time the tight line work is located in the vertical direction,
In addition, the apparatus of this embodiment can be said to be a vertical method if the conventional tight binding method is performed in the order from top to bottom.

At the time of this tight binding, when the wire and the wire are attached to the yoke fitting 2, all the wires are attached to the yoke fitting 2 (when the yoke fitting 2 is balanced).
However, the sag of these lines is increased, but the sag is smaller than that of the conventional parallel system, and there is no risk of touching. Further, as shown in FIG. 2, since these lines are located in the vicinity of the outer two insulator series 1a, the insulator series 1a
Attach the gold wheel to the arm T'outer than the attachment position of a,
Even if the parent wire is attached to these and the wire is drawn in, the parent wire does not come into contact with the insulator 1a.

After the tight line of the line ~ is completed, the line ~
And then attach it to the yoke fitting 2 in the order of line → line → line → line. In this case, the gold wire for the parent wire is attached to the inside of the arm T ′ rather than the attachment position of the inside insulator string 1b.

When all the wires are attached to the yoke fitting 2, the conductor L is separated from the yoke fitting 2 by a predetermined distance.
The diaphragm member 3 is attached to. The mounting order of the clamps 2a and 2b of the diaphragm member 3 is not particularly limited, but it is convenient to secure the scaffolding if the clamps are mounted from below.

When the attachment of the diaphragm member 3 is completed, the shape connecting the respective lines of the conductor L on the side opposite to the yoke fitting 2 becomes a predetermined regular octagon.

As described above, in the apparatus of this embodiment,
Since the yoke metal fitting 2 is made horizontally longer than the regular octagon having the line-to-arrangement interval and is closer to the installation interval of the insulator connection 1, the parent wire does not come into contact with the insulator connection 1 at the time of tight line, and the throttle member 3 Since the conductor L is arranged in a regular octagonal shape, the power transmission efficiency is not reduced. Further, since the yoke L2 of the conductor L is attached in the vertical order,
The sagging of the upper lines at the tight line is small and it is possible to effectively prevent contact.

Although the number of conductors is eight in the above-mentioned embodiment, it may be a multiconductor such as six. Although the yoke fitting 2 is horizontally long, it may be vertically long. In this case, the insulator string 1 is arranged in the vertical direction, and the direction shortened by the diaphragm member 3 is not the horizontal direction but the vertical direction. Further, the diaphragm member 3 may be used as a conventional spacer that holds the spaces between the conductors in a predetermined regular polygon, without special preparation.

[0024]

According to the apparatus of the present invention, the yoke fitting is made longer or longer than the regular polygon formed by the line connecting the multi-conductors, and the conductors are attached to the yoke fitting in the vertical direction. Therefore, it is possible to effectively prevent contact and contact between the parent wire and the insulator device or twisting of the insulator device, and when a diaphragm member is provided, the polygon formed by the lines connecting the conductors can be made a regular polygon. , The electrical characteristics can be maintained in good condition.

[Brief description of drawings]

FIG. 1 is a plan view of an apparatus according to an embodiment of the present invention.

FIG. 2 is an enlarged cross-sectional view taken along the line AA of FIG.

FIG. 3 is an enlarged sectional view taken along line BB of FIG.

FIG. 4 is an explanatory view showing a contact state between a parent wire and an insulator string.

[Explanation of symbols]

1 insulator 2 Yoke bracket 3 diaphragm member T tower (power transmission tower) L conductor Insulator

Claims (4)

[Claims] 1. A polygon formed by an insulator string having one end attached to a power transmission tower and a line connecting positions where conductors are arranged is more vertical than when the polygon is a regular polygon. An insulator device, comprising: a yoke fitting which is formed by extending a predetermined length in the horizontal direction with the interval unchanged and which is attached to the other end of the insulator string. 2. A polygon formed by an insulator string having one end attached to a power transmission tower and a line connecting positions where conductors are arranged is more horizontal than when the polygon is a regular polygon. An insulator device, comprising: a yoke fitting which is formed by extending a predetermined length in the vertical direction with the interval unchanged and which is attached to the other end of the insulator string. 3. A polygon formed by an insulator string having one end attached to a power transmission tower and a line connecting positions where conductors are arranged has a vertical direction or more than a polygon formed when the polygon is a regular polygon. A yoke fitting that is formed by extending a predetermined length in the horizontal direction or the vertical direction with the horizontal interval unchanged and is attached to the other end of the insulator chain, and the conductor of the conductor provided on the yoke fitting. A polygon formed by a line connecting the conductors is defined as a regular polygon provided on the opposite side of the insulator chain and shortening the interval between the opposing horizontal or vertical conductors by the predetermined length. An iris device comprising: 4. The method of tightening wires to the insulator device according to claim 1, wherein the conductors are attached to the yoke fittings in a vertical direction and for each conductor. A method for tightening a wire, characterized in that a conductor positioned below is mounted and then a conductor positioned below is mounted.