JP3265110B2 - Bird damage prevention device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a bird damage prevention device for a double tension insulator device.

[0002]

2. Description of the Related Art A flashover accident of an insulator device caused by a crow or other birds flying on a power transmission tower is a large part of a power failure accident. Is being developed. Typical examples are those that surprise birds and keep them away from insulators, those that have a mini gap in the arcing horn so that even if the birds stop on the arcing horn, they do not lead to a flashover accident, Some birds prevent birds from contacting the arcing horn with a cover or the like.

[0003] However, all of these are intended to prevent a flash accident in which birds themselves become a flash medium, and are not effective in preventing a flash accident caused by nesting materials carried by birds. This nesting material refers to tree branches, straw, wire, cloth, etc. used as materials for birds to make nests, and a long nesting material dropped by birds that have stopped on the insulator device is grounded to the power supply side. If it gets caught on the insulator device so as to tie it to the side, it will easily cause a flashover accident.
In particular, in the double-strength insulator device, since the power application side and the grounding side between the two insulators are connected by a flat yoke, the nesting material is easily caught by the two insulators.

[0004]

SUMMARY OF THE INVENTION The present invention solves such a conventional problem and provides a novel bird damage prevention device which can prevent a flash accident caused by a nesting material in a double tension insulator device. It was done to do so.

[0005]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention is directed to a yoke for a double tension insulator device.
In the center, higher than each insulator from the plane containing the axis of each insulator
Attach the growing arcing horn and
A rod shape with a length greater than the distance between the axes of the two insulators and lower at both ends , at a position higher than each insulator of the King Horn
The angled member, and is characterized in that mounted in a direction perpendicular to the insulator axis.

[0006]

According to the bird harm prevention device of the present invention, even when birds stopped on the insulator device drop a long nesting material between the two insulators, the nesting material remains above the arcing horn. A rod-shaped or linear inclined member provided in a direction perpendicular to the axis of the insulator guides the shaft to the outside of the axis of the double insulator. For this reason, a flashover accident due to the nesting material being caught between the two insulators can be prevented.

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below in more detail with reference to the illustrated embodiments. 1 to 3 show an embodiment of the present invention, wherein 1 is a yoke on the power application side, 2 is a yoke on the ground side,
Is an insulator mounted in parallel between the yokes 1 and 2, and constitutes a double tension insulator device as a whole.
An arcing horn 4 is mounted on the upper surface of the central portion of the yoke 1 on the power receiving side, and an arcing horn 5 is mounted on the yoke 2 on the ground side. These arcing
The horns 4 and 5 are each taken from a plane including the axis of each insulator 3 and 3.
It is higher than the child. In this embodiment, the grounding-side arcing horn 5 is attached to the grounding-side yoke 2 via a small insulator 6 for forming a small gap. This small gap is provided to prevent an immediate ground fault even if the arcing horns 4 and 5 are electrically connected, but this gap is omitted and directly attached to the yoke 2 on the ground side. No problem.

Numerals 7 and 8 denote rod-shaped inclined members which are fixed to the upper surfaces of the arcing horns 4 and 5 on the power application side and the ground side by metal fittings 9, respectively. As shown in FIG.
Numeral 8 is a rod-shaped one with both ends lowered, and
Installed higher than the insulators 3,3
ing. The material may be a metal or a resin, and is not particularly limited, but a material having a smooth surface and good slippage is preferable. Although insulator strings by lightning or fouling arcing by continued flow when creeping flashover, metal angled member has a function of leading the arc, also it has the effect of improving the performance of the arcing horn. As shown in the figure, each of these inclined members 7 and 8 has a length longer than the distance between the axes of the two insulators, and in the embodiment, both ends reach the outside of the two insulators 3. These inclined members 7, 8 are provided in a direction perpendicular to the axis of the insulators 3, 3. While Write inclination angle is large a large effect of removing nesting material, whole by increasing the inclination angle in the embodiment since the size are set to about 15 degrees relative to the horizontal plane.

In the bird harm prevention apparatus thus constructed, even when birds try to drop a long nesting material between the two insulators 3, 3 as shown in FIG. Slides along the upper surfaces of the inclined members 7 and 8 and falls outside the double insulators 3 and 3. For this reason, a flashover accident due to the nesting material being caught between the two insulators 3 can be reliably prevented.

[0010]

[0011]

As described above, according to the present invention , with a simple structure, it is possible to reliably prevent a flashover accident caused by a bird's nesting material caught between two insulators. Can be done. In addition, when the insulator continuous surface is flashed due to lightning or contamination, the ground side and the line side are short-circuited, and a continuation flow flows, and the insulator is easily damaged by the arc heat of the continuation flow. For this reason, arc horns are provided on the earth side and the line side to transfer the arc generated on the insulator creepage from the creepage of the insulator. The insulator may be damaged. However, if the inclined member at the tip of the horn is made of metal, an arc on the surface of the insulator is easily caused , and the arc resistance can be improved. Further, these inclined members are semi-permanent structures, and have the advantage that no maintenance is required. Therefore, the present invention is highly effective as a bird harm prevention device that solves the conventional problems.

[Brief description of the drawings]

FIG. 1 is a plan view showing an embodiment .

FIG. 2 is a front view showing the embodiment .

FIG. 3 is a front view showing the operation of the embodiment .

[Explanation of symbols]

1 yoke on the power application side, 2 yoke on the ground side, 3 insulators,
4 arcing horn on the power receiving side, 5 arcing horn on the grounding side, 6 small insulator, 7 inclined member, 8 inclined member,
9 metal fittings

──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-40-40121 (JP, U) JP-A-5-15231 (JP, U) (58) Fields surveyed (Int. Cl. ⁷ , DB name) H01B 17/00-17/54

Claims (1)

(57) [Claims] 1. A central part of a yoke of a double tension insulator device ,
An arc extending higher than each insulator from the plane containing the axis of each insulator
The King Horn is installed and this
A rod-shaped inclined member having a length longer than the distance between the axes of the two insulators and having both ends lowered is mounted at a position higher than each insulator in the direction perpendicular to the axis of the insulator. Bird harm prevention device characterized by the above-mentioned.