JP2002199568A - Stringing cable fixture for high tension over-head power distribution cable - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a stringing cable fixture of a high tension overhead power distribution cable, which can simplify balancing of the cable in two directions and reduce the required construction period and material costs. SOLUTION: A direct high tension fixture 21 to be attached to a center stringing pole 2B of a high tension overhead power distribution cable 1 is used together with a cable support guide 22 pulleys 35 to hold the cable 1 and a high tension insulators 23, 23 connecting the direct high tension fixture 21 to a cable support guide 22. Since the distribution cable 1 is supported through a cable support guide 22 pulleys 35 without removing its insulator, the cable 1 is supported and balanced with a curvature (larger than 15 deg.).

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a distribution overhead line fitting used for insulating and supporting an overhead high voltage distribution line on a distribution pole in an overhead line of an overhead high voltage distribution line.

[0002]

2. Description of the Related Art For example, as shown in FIG. 4, a certain intermediate power pole 2B connects the centers of adjacent street poles 2A and 2C before and after the overhead pole of an overhead high voltage distribution line due to road conditions or the like. When the overhead high-voltage distribution line 1 is displaced to one side from the center line Q and curves by 15 ° or more, that is, the overhead high-voltage distribution line 1 extending from the street poles 2A and 2B toward the power pole 2B and the center line The angle θ formed by Q is 15
゜ There may be more than one. In this case, in order to stably maintain the construction of the facility, the shifted power pole 2B is used as a distribution pole and the curve of the high-voltage distribution line 1 is distributed. This distribution work is performed in the following manner.

As shown in FIGS. 5 and 6, a pair of anchoring units 6 and 6 in which a torsion strap 3, two tensile insulators 4A and 4B and an anchoring clamp 5 are connected in series are prepared. The torsion strap 3 is attached to the arm 8 of the high-pressure bracket 7 attached to the sorting column 2B with a pin 9
A pair of retaining units 6 and 6 are distributed and attached to both sides of the arm 8 by pivotal connection.

Then, the overhead high voltage distribution line 1 is
Cut P1 and P2 at appropriate places on both sides of B, and remove the wire coating at the cut end to expose the electric wire.
1a is gripped by each of the retaining clamps 5 of the pair of retaining units 6 and 6, respectively. After that, the high-voltage direct-attachment bracket 7 and the pair of retention units 6 and 6 are bypassed by the surrounding electric wire 10, and the overhead high-voltage distribution line 1 and the passing column 2C extending from the passing column 2A toward the sorting column 2B. A branch sleeve 11 is connected to the overhead high voltage distribution line 1 extending toward the distribution column 2B.
To make electrical connection. The exposed end portion 1a of the overhead high-voltage distribution line 1 and the gripping portion thereof are covered with a clamping clamp cover 12 for insulation.

[0005]

However, in the above-mentioned sorting operation using the pair of retaining units 6, 6, the sorting operation is performed in the following manner.
A work to cut the overhead high-voltage distribution line 1 on both sides of the sorting column 2B and strip off the wire coating, a work to grip the stripped exposed end 1a with the retaining clamp 5, a high-voltage direct fitting 7 and a pair Of the overhead high-voltage distribution line 1 extending from the street pole 2A to the distribution column 2B and the overhead high-voltage distribution line 1 extending from the street column 2C to the distribution column 2B, bypassing the retention units 6 and 6 of FIG. An extremely complicated operation, such as a work of electrically connecting and covering the exposed end portion 1a of the overhead high-voltage distribution line 1 and the holding portion thereof with the clamp clamp cover 12, must be performed on site. For this reason, there are drawbacks such as a large number of assembling members and assembling man-hours required in the on-site sorting work, and a long working time.

SUMMARY OF THE INVENTION An object of the present invention is to solve the above-mentioned drawbacks. The object of the present invention is to reduce the number of members required for on-site construction and the number of working steps, thereby simplifying the sorting work, shortening the working time, An object of the present invention is to provide a distribution overhead metal fitting for overhead high-voltage distribution lines that can reduce material costs.

[0007]

SUMMARY OF THE INVENTION According to the present invention, there is provided a distribution overhead line fitting for an overhead high voltage distribution line, comprising: a high voltage direct mounting bracket attached to a distribution pole of the overhead high voltage distribution line; and a wire support on which the overhead high voltage distribution line is wound. It is characterized in that it comprises a guide member, and a tension insulator connecting the high-voltage direct mounting bracket and the wire support guide member. In this case, a rotatable pulley can be used for the wire support guide member.

[0008]

According to the distribution overhead wire fitting of the above construction, the overhead overhead high voltage distribution line is wound around the wire support guide member, whereby the distribution overhead wire corresponding to the curve and the non-average tension of the overhead high voltage distribution line becomes possible. At this time, if a pulley is used for the wire support guide member and the overhead high-voltage distribution line is hung on the pulley so that it can be rotated, friction between the overhead high-voltage distribution line and the pulley is reduced, and stripping or cutting of the wire coating is not required. In conjunction with this, the overhead high voltage distribution line is not damaged.

[0009] In the distribution work, it is sufficient to cut the insulation-coated overhead high-voltage power distribution line or to wind it through a wire supporting guide member without stripping the insulation coating, and to wrap it as in the above-mentioned conventional overhead transmission line. Cutting high-voltage distribution lines and stripping wire coverings, gripping exposed cut ends of overhead high-voltage distribution lines with retention clamps of a pair of retention units, electrically connecting overhead high-voltage distribution lines with marginal wires, termination Since no complicated work such as the work of covering with a clamp cover is required at all, the required number of members and the number of working steps can be significantly reduced, and the sorting work can be simplified accordingly, and the working time can be significantly reduced.

[0010]

An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a plan view showing the sorting overhead wire fitting of the present invention attached to a sorting column, and FIG. 2 is a side view of the sorting overhead wire fitting of FIG. In FIGS. 1 and 2, a distribution overhead metal fitting 2 for an overhead high-voltage distribution line according to the present invention.
Numeral 0 is pre-manufactured in the factory, and includes a high-voltage direct fitting 21 attached to the distribution column 2B of the overhead high-voltage distribution line 1, an electric wire support guide member 22 around which the overhead high-voltage distribution line 1 is wound, and There is provided a tension insulator 23 which connects the high-voltage direct mounting bracket 21 and the wire support guide member 22.

The high-pressure direct mounting bracket 21 includes a pair of half-split clamps 24, 25, and a pair of bolts 26, which are inserted through one end and the other end of the clamps 24, 25, respectively. And a nut 27 screwed to each bolt 26, and an arm 28 is integrally protruded from one of the clamps 25. The high-pressure direct mounting bracket 21 is attached to the sorting column 2B by sandwiching a pair of half-split holding brackets 24 and 25 on the sorting column 2B and tightening the bolts 26 and nuts 27 at both ends. Has become.

The proximal end of the torsion strap 29 is pivotally connected to the distal end of the arm bar 28 by a pin 30, and the distal end of the torsion strap 29 is pivotally connected to each other in series by a pin 31. One of the tension insulators 23, 23 is pivotally connected by a pin 32, and the wire support guide member 22 is pivotally connected to the tip of the other tension insulator 23 by a pin 33. .

The electric wire supporting guide member 22 includes a tension insulator 23.
Frame 3 pivotally connected to the distal end of the frame by a pin 33
The two front and rear pulleys 35, 35 are arranged between the front and rear wheels 4, 34, and each is mounted rotatably on a shaft 36.

Next, a procedure for distributing the curve of the overhead high-voltage distribution line 1 using the distributing overhead wire fitting 20 having the above configuration will be described. The overhead high-voltage distribution line 1 is wound around the pulleys 35 of the wire support guide member 22 without cutting or stripping the wire coating. Then, the high-pressure bracket 21 is attached to the sorting column 2B. When appropriate, the sorting overhead metal fitting 20 can sort the curve of the overhead high-voltage distribution line 1. Curve distribution of the overhead high-voltage distribution line 1 by the distribution overhead metal fitting 20 is performed by a center line connecting the overhead high-voltage distribution line 1 extending from the column 2A, 2C toward the distribution column 2B and the center of the column 2A, 2C. When the angle θ formed by Q (see FIG. 4) is in the range of 15 ° to 30 °, it is possible to sufficiently cope with the problem.

As described above, in the distribution work, a simple operation of merely passing the overhead high-voltage distribution line 1 through the wire support guide member 22 while covering it and winding it around is sufficient. Therefore,
The cutting of the overhead high-voltage distribution line 1 and the stripping operation of the electric wire covering as shown in the conventional FIGS. In addition, a work of holding the cut exposed end of the overhead high-voltage distribution line 1 with the retention clamps 5 of the pair of retention units 6, an operation of electrically connecting the overhead high-voltage distribution line 1 by the surrounding electric wire 10,
Further, the operation of covering with the retaining clamp cover 12 and the like can be omitted altogether. Accordingly, the holding clamp 5 and the holding clamp cover 12 are unnecessary, and the number of the tension insulators 23 is sufficient to be half, so that the number of members can be reduced and the material cost can be reduced.

In the above embodiment, the wire support guide member 22
Is constituted by a rotatable pulley 35. Instead of this, an electric wire is formed by mounting an arcuate guide body 38 having a groove 37 as shown in FIG. A support guide member 22 can also be used.

[0017]

According to the present invention, a simple and small number of man-hours for distributing an overhead high-voltage distribution line through a wire supporting guide member is sufficient, and the number of members can be significantly reduced to reduce material costs. This is extremely advantageous.

[Brief description of the drawings]

FIG. 1 is a plan view showing a state in which a sorting overhead wire fitting is attached to a sorting column.

FIG. 2 is a side view of the sorting overhead metal fitting of FIG. 1;

FIG. 3 is a plan view of a sorting wire fitting of another embodiment.

FIG. 4 is a plan view showing an arrangement of utility poles of the conventional overhead high-voltage distribution line.

FIG. 5 is a plan view showing a conventional sorting overhead wire device attached to a sorting column.

FIG. 6 is a front view of the sorting overhead wire device of FIG. 5;

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 overhead high-voltage distribution line 2A, 2C street mounting column 2B sorting mounting column 20 sorting overhead wire fitting 21 high-voltage direct mounting bracket 22 wire support guide member 23 tension insulator 35 pulley

Claims (2)

[Claims] 1. A high-voltage direct mounting bracket attached to a distribution pole of an overhead high-voltage distribution line, a wire support guide member around which an overhead high-voltage distribution line is wound, and the high-voltage direct mounting bracket and the wire support guide member are connected. Distributing overhead metal fittings for overhead high-voltage distribution lines, comprising tension insulators. 2. The distribution overhead metal fitting for an overhead high-voltage distribution line according to claim 1, wherein said wire support guide member is constituted by a rotatable pulley.