JPH11122776A - Bird hazard prevention device for transmission line tower - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a bird hazard prevention device for a transmission line tower by which a short circuit can be eliminated caused when cutting a wire for blocking a flying bird. SOLUTION: A wire 16 is wound on a shaft 15 in a case 14 placed on a support member 11. The shaft 15 has a built-in spring 18 which energizes the shaft 15 in a direction of taking up the wire 16. The wire 16 is drawn out through an opening 17 and attached to the member 5 of a transmission line tower. If the wire 16 is cut off by a strong wind, etc., the one side cut end 16 is automatically taken up on the shaft 15 in the case 14 by the spring 18. Although the case 14 is on a dangerous high voltage side, as the cut end 16a is taken up into the case 14, a short circuit failure does not occur. Although the other side cut end 16b is hung down from the member 5, as it is not on the high voltage side, a short circuit failure does not occur.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for preventing bird damage in power transmission towers.

[0002]

2. Description of the Related Art When birds fly into a high-voltage transmission line facility such as a power transmission tower, the birds are killed by electric shock, which may cause power transmission problems. (For example, Japanese Patent Laid-Open No. 5-130721).
issue).

[0003]

However, a wire such as a wire may be cut due to strong wind, and the cut wire hangs from a power transmission tower. The length of the wire is generally several meters or more, and the cut wire is rocked by the wind. The wire is stretched near the insulator that supports the high-voltage power transmission line. There is a possibility that.

Accordingly, an object of the present invention is to provide a bird harm prevention device for a power transmission tower that can eliminate the occurrence of a short circuit accident caused by cutting of a wire.

[0005]

According to the present invention, there is provided an apparatus for preventing bird harm in a transmission line tower, comprising: a support member attached to a member on the high voltage side of the transmission line tower; a case mounted on the support member; An insulating wire wound around an internal shaft portion and housed; and a spring material for urging the wire in a direction of winding the wire around the shaft portion, and the wire can be led out from an opening of the case. It is.

In the above configuration, the wire is led out of the case and stretched over the conductive wire tower. When the wire is cut by strong wind or the like, the strip on the high pressure side is automatically wound into the case by the spring force of the spring material. Therefore, the break of the wire does not hang on the electrically dangerous high voltage side, and the short circuit accident can be surely eliminated.

[0007]

Embodiments of the present invention will be described below with reference to the drawings. 1 is a side view of an arm portion of a power transmission tower, FIG. 2 is a perspective view of a bird harm prevention device stretched over the power transmission tower, and FIG. 3 is a side view of the same.

In FIG. 1, a tension insulator 2 is stretched at the tip of an arm 1 of a power transmission tower. The insulator ream 2 is made by connecting a large number of bulk insulators.
Supports high-voltage transmission lines. A bird damage prevention device 10 is disposed near the insulator ream 2.

2 and 3, reference numerals 4 and 5 denote members for constructing a transmission line tower. The bird harm prevention device 10 is configured as follows. Reference numeral 11 denotes a rod-shaped support member, which is provided upright on a stopper 13 fixed to the member 4 with bolts 12. A case 14 is mounted on the upper end of the support member 11.

In FIG. 3, a wire 16 is wound around a hollow shaft 15 inside a case 14. The wire 16 is an insulating material such as nylon. The shaft portion 15 incorporates a coil-shaped spring member 18 that urges the wire 16 in the winding direction. The wire 16 can be led out of the front opening 17 of the case 14. The wire 16 indicated by a solid line is in a state where it is forcibly led out of the case 14 and is stretched by winding the distal end thereof around the member 5. 2 and 3, the case 14 is provided on an electrically dangerous high voltage side, that is, on a side close to the power transmission line, and the tip of the wire 16 is attached to the member 5 on the electrically safe side. .

Since the bird harm prevention device 10 is configured as described above, it is possible to prevent a bird 16 from flying into the ream 2 by the wire 16 and causing a short circuit accident.

Since the bird harm prevention device 10 is exposed to strong winds on a power transmission tower, an accident of cutting the wire 16 occurs. In FIG. 3, when the wire 16 is cut at a point a, one of the cuts 16a of the wire 16 is
Is automatically wound around the shaft 15 by the spring force (arrow N). In addition, the other cut 16b hangs down from the member 5 (the cut 16a, 1 shown by a chain line in FIG. 3).
6b).

Since the electrically dangerous high-voltage side cutout 16a is wound inside the case 14, no short circuit accident occurs. Further, the other cutout 16b hangs down from the member 5, but since it is away from the high pressure side, a short circuit accident does not occur.

[0014]

As described above, according to the present invention, when the wire stretched on the power transmission tower is cut, the high-pressure side is automatically wound inside the case by the spring force of the spring material. Taken. Therefore, the break of the wire does not hang on the electrically dangerous high voltage side, and the short circuit accident can be surely eliminated.

[Brief description of the drawings]

FIG. 1 is a side view of an arm of a transmission line tower.

FIG. 2 is a perspective view of a bird harm prevention device installed on a power transmission tower.

FIG. 3 is a side view of the bird harm prevention device installed on a power transmission tower.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Arm part 2 Insulator row 10 Bird harm prevention device 11 Support member 14 Case 15 Shaft part 16 Wire 17 Opening 18 Spring material

Claims (1)

[Claims] 1. A support member attached to a member on the high pressure side of a transmission line tower, a case attached to the support member,
It consists of an insulative wire rod wound around a shaft inside the case and a spring material for urging the wire in the direction of winding the wire around the shaft, and this wire can be led out from the opening of the case. A bird harm prevention device for power transmission towers.