JP2006296277A - Device for preventing nest-building - Google Patents

Device for preventing nest-building Download PDF

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JP2006296277A
JP2006296277A JP2005121909A JP2005121909A JP2006296277A JP 2006296277 A JP2006296277 A JP 2006296277A JP 2005121909 A JP2005121909 A JP 2005121909A JP 2005121909 A JP2005121909 A JP 2005121909A JP 2006296277 A JP2006296277 A JP 2006296277A
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nesting
prevention plate
nesting prevention
pole
switch
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JP4534040B2 (en
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Koji Takibayashi
浩治 滝林
Masahiro Inoue
雅弘 井上
Takahiro Okumura
隆広 奥村
Masahiro Kubokawa
正広 久保川
Shinya Tamai
信也 玉井
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Kansai Electric Power Co Inc
SHINKAN KOGYO KK
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Kansai Electric Power Co Inc
SHINKAN KOGYO KK
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Abstract

<P>PROBLEM TO BE SOLVED: To prevent nest-building by a bird on a switch on a pole attached at the upper part of a telegraph pole to induce an accident of power distribution lines. <P>SOLUTION: This device for preventing the nest-building is provided by fixing a nest-building prevention plate 3 constituted with a hard insulating material on the upper surface of a bracket 9a hanging the switch 2 on the pole at the upper part of the switch 2 on the pole with hanging bolts 8 together with the bracket 9a. The size of the nest-building prevention plate 3 is the same with or larger than the total length and total width of the main body insulator of the switch 2 on the pole, and its upper surface is finished with a hard smooth surface so as not to pile the nest-building materials dropped by the bird from air on the nest-building prevention plate 3 and the switch 2 on the pole. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

本発明は、電柱に設置された柱上開閉器への鳥類の営巣を防止するための営巣防止装置に関するものである。   The present invention relates to a nesting prevention apparatus for preventing birds from nesting on a pole switch installed on a utility pole.

一般に、電柱に設置された柱上開閉器には、カラスなどの鳥類が飛来して営巣しやすく、この営巣によって配電事故を発生させるおそれがある。発見された営巣は電力会社によって撤去されるが、近年増加している多くの営巣を撤去するには、多大の時間および労力を要すると共に、高所で撤去作業中の作業員が営巣時期の興奮したカラスに襲われるなどの危険を伴う。   In general, birds such as crows fly on a pole switch installed on a utility pole and tend to nest, and this nesting may cause a power distribution accident. The found nesting is removed by the electric power company, but it takes a lot of time and labor to remove many nestings that have been increasing in recent years, and workers who are removing at high altitudes are excited about the nesting time There is a risk of being attacked by a crow.

このような営巣を防止するため、例えば特許文献１〜３が開示するような手法が用いられている。特許文献１が開示する営巣防止具は、柱上開閉器の近傍に、多数の針棒体が突出するバリヤーを設けて、鳥類の接近や鳥類が止まって営巣することを防止するものである。特許文献２が開示する鳥害防止構造は、柱上開閉器の上面を遮蔽板で分割することにより、鳥類の営巣スペースをなくしたものである。   In order to prevent such nesting, for example, techniques disclosed in Patent Documents 1 to 3 are used. The nesting prevention tool disclosed in Patent Document 1 is provided with a barrier from which a large number of needle bars protrude in the vicinity of a pole switch, thereby preventing birds from approaching and birds from stopping and nesting. The bird damage prevention structure disclosed in Patent Document 2 is obtained by eliminating the nesting space for birds by dividing the upper surface of the pole switch by a shielding plate.

特許文献３が開示する鳥類飛来防止装置は、柱上開閉器の近傍に、磁石を表設した風車などの回転体を設けて異常変動磁場を形成し、鳥類の飛来を防止するものである。また、これら以外にも、営巣する鳥類の天敵である鷲や梟の模型を取り付けたり、光を反射する円盤等を取り付けたりして、鳥類の飛来および営巣を防止する手法が用いられている。
特開平１０−８４８４０号公報（段落番号０００８〜００１０、図３） 特開平９−２８２７０号公報（段落番号０００５〜００１１、図１） 実開平４−１２９７８９号公報（第２頁、図１〜図６） The bird flying prevention device disclosed in Patent Document 3 is provided with a rotating body such as a windmill with a magnet provided in the vicinity of a pole switch to form an abnormally variable magnetic field, thereby preventing birds from flying. In addition to these methods, a method for preventing birds from flying and nesting by attaching a model of a cocoon or a moth that is a natural enemy of nesting birds, or attaching a disk or the like that reflects light is used.
Japanese Patent Laid-Open No. 10-84840 (paragraph numbers 0008 to 0010, FIG. 3) JP-A-9-28270 (paragraph numbers 0005 to 0011, FIG. 1) Japanese Utility Model Laid-Open No. 4-129789 (page 2, FIGS. 1 to 6)

ところが、特にその営巣が問題となっているカラスは、嘴に咥えてきた営巣材料を空中から落として巣の基礎を作るため、特許文献１のように、多数の針棒体によって鳥類の接近や鳥類が止まることを阻止しても、十分な営巣防止効果を得にくい。さらに、開放型の柱上開閉器では、特許文献２のように、営巣スペースを遮蔽板で分割しても、遮蔽板間の空間に落とされた営巣材料が充電部およびケースに接触して地絡事故を起こすおそれがある。   However, the crow, whose nesting is a problem, drops the nesting material from the air to make the foundation of the nest. Even if the birds are stopped, it is difficult to obtain a sufficient nesting prevention effect. Further, in the open-type pole switch, as in Patent Document 2, even if the nesting space is divided by the shielding plates, the nesting material dropped in the space between the shielding plates comes into contact with the charging unit and the case and the ground. There is a risk of accidents.

また、近年は洗濯業などで使用される金属製ハンガーが営巣材料となることが多く、この金属製ハンガーが特許文献１における針棒体間の隙間に入り込むことにより、通常よりも強固な巣ができ、営巣の撤去作業が困難になることがある。さらに、金属製ハンガーは、それ自体が自由に曲がることやフック部分があることから、特許文献２における遮蔽板間の空間に引っ掛かりやすく、これを足場として営巣されることがある。   In recent years, metal hangers used in the laundry industry or the like are often used as nesting materials, and when this metal hanger enters the gap between the needle bar bodies in Patent Document 1, a stronger nest than usual is formed. This can make it difficult to remove the nesting. Furthermore, since the metal hanger itself bends freely and has a hook portion, the metal hanger is easily caught in the space between the shielding plates in Patent Document 2, and may be nested using this as a scaffold.

特許文献３のように、鳥類の警戒心などを利用する手法は、装置設置後のしばらくは鳥類の飛来を防止することができるが、学習能力の高いカラスなどが装置が無害であることを学習することにより、装置の設置後のわずかのうちに鳥類の飛来を防止する効果がなくなることが多い。   As in Patent Document 3, the method using bird alertness can prevent birds from flying for a while after the installation of the device, but learning that crows with high learning ability are harmless. By doing so, the effect of preventing birds from flying in often after the installation of the device is often lost.

本発明は、柱上開閉器への鳥類の営巣をより確実に防止することができる営巣防止装置を提供することを目的としている。   An object of this invention is to provide the nesting prevention apparatus which can prevent the nesting of birds to a pole switch more reliably.

上記課題に鑑み、本発明が提供する営巣防止装置は、電柱に設置された柱上開閉器への鳥類の営巣を防止するためのものであり、柱上開閉器を上方から覆う営巣防止板を設け、この営巣防止板の上面を、その表面粗さが最大高さで１ｍｍ以下の平滑面としたものである。   In view of the above problems, the nesting prevention device provided by the present invention is for preventing birds from nesting on a pole switch installed on a utility pole, and includes a nesting prevention plate that covers the pole switch from above. The upper surface of the nesting prevention plate is a smooth surface having a maximum surface roughness of 1 mm or less.

この構成によれば、営巣防止板で柱上開閉器を上方から覆うことにより、柱上開閉器への営巣を防止すると共に、営巣防止板の上面を平滑面とすることにより、鳥類が落下させた営巣材料を滑らせて営巣防止板上への滞留を阻止し、鳥類の営巣を防止することができる。   According to this configuration, the nesting prevention plate covers the pole switch from above, thereby preventing nesting to the pole switch and making the top surface of the nesting prevention plate a smooth surface, thereby allowing birds to fall. The nesting material can be slid to prevent it from staying on the nesting prevention plate, and bird nesting can be prevented.

営巣防止板上に落下した営巣材料を滑らせるには、営巣防止板の上面の表面粗さ（ＪＩＳ Ｂ０６０１−１９９４に規定の最大高さ）をＲｙ≦１ｍｍとするのがよい。これにより、営巣材料は、営巣防止板への落下時の勢いによって、あるいは営巣防止板上に載った後の自然の風の力によって、営巣防止板から容易に滑り落ちるので、営巣をその初期段階で阻止することができる。なお、最大高さ（Ｒｙ）は、これを規定する際の基準長さの代わりに、営巣防止板の全面を用いて、その最高部と最低部との差を採用するのがよい。   In order to slide the nesting material that has fallen on the nesting prevention plate, the surface roughness of the upper surface of the nesting prevention plate (the maximum height defined in JIS B0601-1994) is preferably Ry ≦ 1 mm. As a result, the nesting material easily slides off the nesting prevention plate by the momentum when falling on the nesting prevention plate or by the natural wind force after being placed on the nesting prevention plate. Can be blocked. As the maximum height (Ry), it is preferable to use the difference between the highest part and the lowest part using the entire surface of the nesting prevention plate instead of the reference length for defining the maximum height (Ry).

営巣防止板を柱上開閉器の全体を上方から覆う大きさに設定することにより、営巣防止板の縁から落ちた営巣材料が柱上開閉器の外方を通過するようにして、柱上開閉器への営巣材料の引っ掛かりを阻止することができる。さらに、営巣防止板を柱上開閉器の接続端子などの充電部の露出部分を覆う大きさに設定することにより、営巣防止板上から滑り落ちた営巣材料が柱上開閉器の充電部に接触することによる地絡事故を防止することができる。   By setting the nesting prevention plate to a size that covers the entire top of the column switch from above, the nesting material that has fallen from the edge of the nesting prevention plate passes through the outside of the column switch to open and close the column. It is possible to prevent the nesting material from being caught on the vessel. Furthermore, by setting the nesting prevention plate to a size that covers the exposed part of the charging part such as the connection terminal of the pole switch, the nesting material that has slipped off the nesting prevention plate contacts the charging part of the pole switch It is possible to prevent a ground fault from occurring.

営巣防止板は、１種類の素材からなる板であってもよく、互いに異なる素材を積層してなる積層板などであってもよいが、少なくとも上面部がデュロメータ硬さ（ＪＩＳ Ｋ ７２１５）でＤ５０以上の硬さを有するようにする。そうすれば、営巣防止板上に落下した営巣材料や鳥類の飛来による上面部の傷を防ぐことができ、この傷によって営巣防止板の上面の平滑度が低下することを防止することができる。   The nesting prevention plate may be a plate made of one kind of material or a laminated plate made by laminating different materials, but at least the upper surface portion is durometer hardness (JIS K 7215) and D50. Have the above hardness. If it does so, the damage | wound of the upper surface part by the nesting material and bird's flying which fell on the nesting prevention board can be prevented, and it can prevent that the smoothness of the upper surface of a nesting prevention board falls by this damage | wound.

また、営巣防止板の少なくとも上面部を硬質の素材から形成することにより、営巣防止板上に落下した営巣材料を弾いて、その勢いによって営巣材料を営巣防止板の縁から落下させやすくすると共に、営巣防止板の上面部への営巣材料の食い込みによる定着を防止することができる。   Also, by forming at least the upper surface portion of the nesting prevention plate from a hard material, the nesting material dropped on the nesting prevention plate is repelled, and the nesting material is easily dropped from the edge of the nesting prevention plate by the momentum, It is possible to prevent the nesting material from being fixed by biting into the upper surface of the nesting prevention plate.

営巣防止板を略水平に配置すれば、鳥類が止まる足掛かりをなくして、その糞害を防止することができる。つまり、営巣防止板を傾斜させて配置する場合、上方を向いた営巣防止板の端縁（突部）が鳥類の足掛かりとなりやすいが、営巣防止板を略水平に配置することにより、鳥類の足掛かりとなる突部がなくなり、営巣防止板に鳥類が止まることを阻止することができる。これにより、鳥類の糞による地絡事故や、鳥類の糞によって営巣防止板の上面の平滑度が損なわれることを防止することができる。   If the nesting prevention plate is arranged substantially horizontally, it is possible to eliminate the footsteps where birds stop and prevent the feces from being damaged. In other words, when the nesting prevention plate is placed at an inclination, the edge (projection) of the nesting prevention plate facing upward tends to be a footrest for birds. However, by placing the nesting prevention plate substantially horizontally, It is possible to prevent the birds from stopping on the nesting prevention plate. Thereby, it is possible to prevent a ground fault caused by bird droppings and the smoothness of the upper surface of the nesting prevention plate from being damaged by bird droppings.

営巣防止板を電気的絶縁体から形成すれば、鳥類が落下させた営巣材料が充電部に接触した場合にも、営巣防止板を介する地絡を防止することができる。電気的絶縁体としては、硬質塩化ビニルを例示することができる。   If the nesting prevention plate is formed of an electrical insulator, it is possible to prevent a ground fault through the nesting prevention plate even when the nesting material dropped by birds contacts the charging part. An example of the electrical insulator is hard vinyl chloride.

柱上開閉器を電柱に固定された腕金に懸架する場合、営巣防止板を腕金よりも上方に設ければ、営巣防止板上に落下した営巣材料が腕金に引っ掛からずにすみ、腕金が営巣材料の滑りを阻害することを防止することができる。   When suspending a pole switch on a brace fixed to a utility pole, if the nesting prevention plate is provided above the brace, the nesting material that has fallen on the nesting prevention plate can be prevented from being caught by the bracelet. Gold can be prevented from inhibiting sliding of the nesting material.

柱上開閉器を腕金に懸架するための懸架ボルトを利用し、この懸架ボルトの上端部に営巣防止板を締結する。そうすれば、営巣防止装置の構造を簡単にすると共に、柱上開閉器と営巣防止装置との位置合わせを不要にすることができる。   A suspension bolt for suspending the pole switch from the arm is used, and a nesting prevention plate is fastened to the upper end of the suspension bolt. Then, the structure of the nesting prevention device can be simplified, and the alignment between the pole switch and the nesting prevention device can be made unnecessary.

以上のとおり、本発明によると、電柱に設置された柱上開閉器を営巣防止板で上方から覆い、かつ、営巣防止板の上面の表面粗さを平滑面としているので、柱上開閉器への営巣を防止すると共に、営巣防止板への営巣材料の滞留を阻止して、営巣防止板への営巣をも防止することができる。これにより、鳥類の営巣や糞害による地絡などの配電事故を防止することができる。   As described above, according to the present invention, the pole switch installed on the utility pole is covered from above with the nesting prevention plate, and the surface roughness of the upper surface of the nesting prevention plate is made smooth, so that the pole switch In addition to preventing the nesting of the nesting material, the nesting of the nesting material on the nesting prevention plate can be prevented, and the nesting of the nesting material on the nesting prevention plate can also be prevented. Thereby, it is possible to prevent power distribution accidents such as grounding due to bird nesting and fecal damage.

また、営巣防止装置は、営巣防止板を設けただけの簡単な構造であり、その営巣防止板を柱上開閉器の懸架ボルトを利用して取り付けることにより、柱上開閉器との位置合わせが不要になるなど、熟練を要することなく短時間で設置することができる。   In addition, the nesting prevention device has a simple structure with only a nesting prevention plate, and the nesting prevention plate can be aligned with the pole switch by attaching the nesting prevention plate using the suspension bolt of the pole switch. It can be installed in a short time without requiring skill, such as being unnecessary.

以下、本発明に係る営巣防止装置を実施するための最良の形態について、図面を用いて説明する。なお、本実施形態では、柱上開閉器として気中開閉器を採用した形態を示すが、これに限定されるものではない。   The best mode for carrying out the nesting prevention apparatus according to the present invention will be described below with reference to the drawings. In addition, in this embodiment, although the form which employ | adopted the air switch as a pole switch is shown, it is not limited to this.

図１は本発明に係る営巣防止装置を設けた柱上開閉器の斜視図、図２は営巣防止装置を設けた柱上開閉器の平面図、図３は営巣防止装置を設けた柱上開閉器の正面図、図４は営巣防止装置を設けた柱上開閉器の側面図、図５は営巣防止板の平面図、図６は図４におけるＧ−Ｇ断面図である。   1 is a perspective view of a pole switch provided with a nesting prevention device according to the present invention, FIG. 2 is a plan view of the pole switch provided with a nesting prevention device, and FIG. 3 is a pole top switch provided with a nesting prevention device. FIG. 4 is a side view of a pole switch provided with a nesting prevention device, FIG. 5 is a plan view of a nesting prevention plate, and FIG. 6 is a cross-sectional view along GG in FIG.

この営巣防止装置は、電柱１に設置された柱上開閉器２への鳥類の営巣を防止するためのであり、柱上開閉器２を上方から覆うように、平板状の営巣防止板３を略水平に設けた構成とされる。   This nesting prevention device is for preventing birds from nesting on the pole switch 2 installed on the utility pole 1, and the flat nesting prevention plate 3 is generally provided so as to cover the pole switch 2 from above. It is set as the structure provided horizontally.

柱上開閉器２は、両側面が開口された箱状とされ、その内部に装備された本体碍子４の先端に、電線５を接続される接続端子６が設けられている。接続端子６は充電部であり、電線５を接続した後にカバー７で被覆されている。   The pole switch 2 has a box shape with both side surfaces open, and a connection terminal 6 to which an electric wire 5 is connected is provided at the tip of a main body insulator 4 provided in the inside. The connection terminal 6 is a charging part and is covered with a cover 7 after the electric wire 5 is connected.

柱上開閉器２は、その上面から上向きに突出する４本の懸架ボルト８によって、電柱１の柱上にバンド固定された腕金９ａに懸架されている。腕金９ａの上方には２枚の取付金具１０が配置され、この取付金具１０のボルト孔に懸架ボルト８を下方から挿通して締付ナット１１で締め付けることにより、柱上開閉器２が腕金９ａに懸架される。   The pole switch 2 is suspended on a brace 9a band-fixed on the pole of the utility pole 1 by four suspension bolts 8 projecting upward from the upper surface thereof. Two mounting brackets 10 are disposed above the arm bracket 9a. The suspension bolt 8 is inserted into the bolt hole of the mounting bracket 10 from below and tightened with the tightening nut 11, so that the pole switch 2 is Suspended on gold 9a.

なお、柱上開閉器２の直上に耐張２連碍子等の充電部が近接して設置されている場合は、地絡事故を防止するように、懸架ボルト８に絶縁カバーが取り付けられる。電柱１を挟んで腕金９ａと反対側には、腕金９ａと並行な腕金９ｂが設置され、この腕金９ｂに設けられた碍子（図示せず）を介して、金具１２によって本線１３に接続された電線１４を保持している。   In addition, when a charging part such as a tension double reed insulator is installed in the vicinity immediately above the pole switch 2, an insulating cover is attached to the suspension bolt 8 so as to prevent a ground fault. A brace 9b parallel to the brace 9a is installed on the side opposite to the brace 9a across the utility pole 1, and the main line 13 is connected by the metal fitting 12 via a lever (not shown) provided on the brace 9b. The electric wire 14 connected to is held.

営巣防止板３は、例えば硬質塩化ビニルなどの電気的絶縁体から形成され、６ｋＶ以上の高電圧が充電されている電線１４、本線１３、柱上開閉器２などの充電部に、鳥類が落下させた営巣材料が接触しても、営巣防止板３を介する地絡が生じないようになっている。   The nesting prevention plate 3 is formed of an electrical insulator such as hard vinyl chloride, for example, and birds fall on charging parts such as the electric wire 14, the main line 13, and the pole switch 2 that are charged with a high voltage of 6 kV or higher. Even if the nest material made to contact, the ground fault through the nesting prevention plate 3 does not occur.

営巣防止板３の上面は、その表面粗さが最大高さ（ＪＩＳ Ｂ０６０１−１９９４）でＲｙ≦１ｍｍの平滑面に設定され、鳥類が落下させた営巣材料をその落下時の勢いによって、あるいは、上面に載った後の自然の風の力によって滑り落とすようになっている。   The top surface of the nesting prevention plate 3 is set to a smooth surface having a maximum surface roughness (JIS B0601-1994) of Ry ≦ 1 mm, and the nesting material dropped by the birds depends on the momentum of the dropping, or It slides down by the force of the natural wind after it is placed on the top surface.

営巣防止板３の硬さは、デュロメータ硬さ（ＪＩＳ Ｋ ７２１５）でＤ５０以上の硬さとされ、鳥類が落下させた営巣材料を勢いよく弾いて滑らせると共に、営巣材料の落下や鳥類の飛来による傷を防いで平滑度の低下を阻止し、落下してきた営巣材料の食い込み定着を防止するようになっている。   The nesting prevention plate 3 has a durometer hardness (JIS K 7215) of D50 or higher, and the nesting material dropped by the birds is vigorously repelled and slid. It prevents scratches and prevents a decrease in smoothness, and prevents the nesting material that has fallen from biting and fixing.

営巣防止板３の強度は、曲げ強さが５０ＭＰａ以上、引っ張り強さが３０ＭＰａ以上の材料を使用することにより、電柱１の上部において台風などの強風に耐え、かつ、ボルト締結に耐え得る強度とされる。   The strength of the nesting prevention plate 3 is such that by using a material having a bending strength of 50 MPa or more and a tensile strength of 30 MPa or more, it can withstand strong winds such as typhoons at the top of the utility pole 1 and can withstand bolt fastening. Is done.

なお、営巣防止板３を構成する素材は、硬質塩化ビニルに限定されるものではないが、配電用の絶縁工具や保護板に使用されているＦＲＰ（硝子エポキシ樹脂）を採用した場合、樹脂部およびガラス繊維のうちの樹脂部のみが劣化することにより、設置当初に上面が平滑面であっても、経年変化によってその平滑度が低下するおそれがある。   The material constituting the nesting prevention plate 3 is not limited to hard vinyl chloride, but when FRP (glass epoxy resin) used for insulating tools for power distribution and protective plates is adopted, the resin part Further, since only the resin portion of the glass fiber deteriorates, even if the upper surface is a smooth surface at the beginning of installation, the smoothness may be lowered due to secular change.

また、配電用絶縁カバー類に使用されているポリエチレンは、軟質であり傷つきやすく、その上面への営巣材料の落下などにより、徐々に平滑度が低下するおそれがある。絶縁材料として通常使用されるゴムは、特に軟質であり、落下してきた営巣材料が食い込んで定着するおそれがある。   In addition, polyethylene used for insulating covers for power distribution is soft and easily damaged, and there is a risk that the smoothness may gradually decrease due to dropping of the nesting material on the upper surface thereof. The rubber normally used as an insulating material is particularly soft, and there is a risk that the falling nesting material will bite into and fix.

営巣防止板３の左右方向の長さ（Ａ）は、柱上開閉器２に装備された本体碍子４の全長（Ｂ）以上の長さに設定され（Ａ≧Ｂ）、営巣防止板３の前後方向の長さ（Ｃ）は、３相あるうちの両側の接続端子６の外面から外面までの長さ（Ｄ）以上の長さに設定されている（Ｃ≧Ｄ）。   The length (A) in the left-right direction of the nesting prevention plate 3 is set to a length equal to or longer than the total length (B) of the main body insulator 4 mounted on the pole switch 2 (A ≧ B). The length (C) in the front-rear direction is set to a length equal to or greater than the length (D) from the outer surface to the outer surface of the connection terminal 6 on both sides of the three phases (C ≧ D).

すなわち、営巣防止板３は、柱上開閉器２の本体碍子４とカバー７との隙間から露出する接続端子６を上方から完全に覆い隠す外形寸法とされる。これにより、営巣防止板３の上面から滑り落ちた営巣材料が本体碍子４とカバー７の間に入り込んで接続端子６（充電部）に接触することによる地絡事故が防止される。   That is, the nesting prevention plate 3 has an outer dimension that completely covers the connection terminal 6 exposed from the gap between the main body insulator 4 and the cover 7 of the pole switch 2 from above. Thereby, the ground fault by the nesting material slipping down from the upper surface of the nesting prevention plate 3 entering between the main body insulator 4 and the cover 7 and contacting the connection terminal 6 (charging part) is prevented.

営巣防止板３は、腕金９ａに柱上開閉器２を懸架している懸架ボルト８の上端部に、取付ナット１５で締結される。これにより、営巣防止板３が腕金９ａよりも上方に設置され、腕金９ａ、９ｂ、柱上開閉器２、接続部カバー７、電線５、１４の全てが営巣防止板３よりも下方に位置する。   The nesting prevention plate 3 is fastened by a mounting nut 15 to an upper end portion of the suspension bolt 8 that suspends the pole switch 2 from the arm 9a. Thereby, the nesting prevention plate 3 is installed above the arm metal 9a, and the arm metals 9a, 9b, the pole switch 2, the connection cover 7, and the electric wires 5, 14 are all below the nesting prevention plate 3. To position.

営巣防止板３と、柱上開閉器２を懸架するために腕金９ａの上面側に配された取付金具１０および締付ナット１１との間には、懸架ボルト８が挿通する筒状のスペーサー１６が介在され、営巣防止板３と腕金９ａとの間に空間を設けるようになっている。この空間により、営巣防止板３と、腕金９ａ、９ｂの上面および側面に取り付けられることの多い高圧ピン碍子やアレスター取付金具、オツストなどの部材の取付部との干渉が阻止される。   A cylindrical spacer through which the suspension bolt 8 is inserted between the nesting prevention plate 3 and the mounting bracket 10 and the tightening nut 11 arranged on the upper surface side of the armrest 9a for suspending the pole switch 2 16 is interposed, and a space is provided between the nesting prevention plate 3 and the arm metal 9a. This space prevents interference between the nesting prevention plate 3 and the mounting portions of members such as high-voltage pin insulators, arrester mounting brackets, and osteos that are often mounted on the upper and side surfaces of the armatures 9a and 9b.

腕金９ａの上部に空間が不要な場合には、スペーサー１６を設けることなく、締付ナット１１の上面にワッシャ１７を載置して営巣防止板３を取り付けてもよく、懸架ボルト８の長さが不足する場合には、懸架ボルト８に延長ボルトを継ぎ足して空間を拡大してもよい。   If no space is required on the upper part of the arm 9a, the nesting prevention plate 3 may be attached by placing the washer 17 on the upper surface of the tightening nut 11 without providing the spacer 16, and the length of the suspension bolt 8 If the space is insufficient, an extension bolt may be added to the suspension bolt 8 to expand the space.

営巣防止板３の取り付けは、懸架ボルト８に上端からスペーサー１６、ワッシャ１７、営巣防止板３のボルト孔１８、１９およびワッシャ２０を嵌めつつ、これらをこの順で締付ナット１１の上に載置し、最後に取付ナット１５を締め付けるようにする。腕金９ａに柱上開閉器２を固定している締付ナット１１を外さないので、営巣防止板３の取付作業中も柱上開閉器２が支えられたままであり、柱上開閉器２の落下が防止される。   The nesting prevention plate 3 is attached to the suspension bolt 8 by fitting the spacer 16, the washer 17, the bolt holes 18, 19 and the washer 20 of the nesting prevention plate 3 from the upper end on the tightening nut 11 in this order. Finally, the mounting nut 15 is tightened. Since the tightening nut 11 that fixes the pole switch 2 to the arm 9a is not removed, the pole switch 2 remains supported during the nesting prevention plate 3 mounting operation. Falling is prevented.

営巣防止板３には、懸架ボルト８が挿通する丸孔のボルト孔１８と長孔のボルト孔１９とがそれぞれ２箇所ずつ合計４箇所に形成され、丸孔のボルト孔１８と長孔のボルト孔１９とが互いに対になって腕金９ａを挟むように位置している。腕金９ａの長手方向における孔間隔寸法Ｅおよび抱き方向における孔間隔Ｆは、開閉器１の４本の懸架ボルト８の間隔に対応する大きさに穿孔されている。   The nesting prevention plate 3 is formed with a round bolt hole 18 through which the suspension bolt 8 is inserted and a long bolt hole 19 in two places, respectively, for a total of four places. The round bolt hole 18 and the long bolt The holes 19 are positioned so as to be paired with each other and sandwich the arm metal 9a. The hole interval dimension E in the longitudinal direction of the arm metal 9a and the hole interval F in the holding direction are perforated to a size corresponding to the interval between the four suspension bolts 8 of the switch 1.

腕金９ａの長手方向における懸架ボルト８の間隔は、柱上開閉器２を腕金９ａに取り付けた際にも狂いが生じにくいため、その間隔を例えば２４０ｍｍ±５ｍｍで設計製造する場合、孔間隔寸法Ｅを２４０ｍｍとし、丸孔５１の径に±５ｍｍの製造誤差を考慮するのみである。   The distance between the suspension bolts 8 in the longitudinal direction of the arm metal 9a is less likely to be distorted when the pole switch 2 is attached to the arm metal 9a. The dimension E is set to 240 mm, and only the manufacturing error of ± 5 mm is considered in the diameter of the round hole 51.

一方、腕金９ａの抱き方向における懸架ボルト８の間隔は、腕金９ａの太さや施工誤差によって懸架ボルト８に傾きが生じるため、懸架ボルト８の位置ずれを吸収するように、一方のボルト孔１９を中心間隔２０ｍｍの円を一体につないでなる長孔として、懸架ボルト８を通しやすいようにしている。   On the other hand, the interval between the suspension bolts 8 in the direction in which the arm metal 9a is held has an inclination in the suspension bolt 8 due to the thickness of the arm metal 9a and construction errors. 19 is a long hole formed by connecting circles with a center interval of 20 mm so that the suspension bolt 8 can be easily passed.

図６に示すように、ワッシャ２０は、懸架ボルト８が長孔１９のどの位置を通る場合であっても長孔のボルト孔１９を完全に覆う大きさに設定され、営巣材料が長孔のボルト孔１９に入り込んで地絡事故を発生させることを防止する。つまり、営巣防止板３が懸架ボルト８に対して腕金９ａの抱き方向にずれて、懸架ボルト８の片側に、長孔のボルト孔１９による空間が大きくあいた場合であっても、ワッシャ２０の外縁と長孔１９の内縁に隙間が生じることがない。   As shown in FIG. 6, the washer 20 is set to a size that completely covers the bolt hole 19 of the long hole regardless of where the suspension bolt 8 passes through the long hole 19. This prevents a ground fault from entering the bolt hole 19. That is, even if the nesting prevention plate 3 is displaced in the direction in which the arm metal 9 a is held with respect to the suspension bolt 8, and there is a large space on the one side of the suspension bolt 8 due to the long bolt hole 19, There is no gap between the outer edge and the inner edge of the long hole 19.

上記構成によれば、柱上開閉器２を上方から覆うように、平板状の営巣防止板３を略水平に設けているので、柱上開閉器２への営巣を規制することができる。営巣防止板３の上面を硬質の平滑面とするので、鳥類によってその上面に落下されたり載置されたりした営巣材料を滑り落として、営巣材料の滞留を阻止し、柱上開閉器２に加えて営巣防止板３への営巣も阻止することができる。また、鳥類が止まる足掛かりもなく、糞害をも抑えることができ、鳥類による高圧電力の地絡事故を防止することができる。   According to the said structure, since the flat nesting prevention board 3 is provided substantially horizontally so that the top switch 2 may be covered from upper direction, the nesting to the top switch 2 can be controlled. Since the upper surface of the nesting prevention plate 3 is a hard smooth surface, the nesting material dropped or placed on the upper surface by birds is slid down to prevent the nesting material from staying and added to the pole switch 2 Nesting on the nesting prevention plate 3 can also be prevented. In addition, there is no foothold for stopping birds, fecal damage can be suppressed, and ground faults of high voltage power caused by birds can be prevented.

柱上開閉器２を懸架する懸架ボルト８を利用して、電気的絶縁体からなる平板状の営巣防止板３をスペーサー１６、ワッシャ１７、２０および取付ナット１５で取り付けただけの簡単な構造であり、柱上開閉器２との位置合わせの必要もない。これにより、熟練を要することなく、営巣防止装置を確実かつ短時間に設置することができる。   Using a suspension bolt 8 for suspending the pole switch 2, the flat nesting prevention plate 3 made of an electrical insulator is simply attached with a spacer 16, washers 17, 20 and a mounting nut 15. There is no need for alignment with the pole switch 2. Thereby, a nesting prevention apparatus can be installed reliably and in a short time without requiring skill.

なお、本発明は、上記の実施の形態に限定されるものではなく、本発明の範囲内において、適宜変更を加えることができる。例えば、ワッシャ１７、２０は、丸型のものに限らず、長孔のボルト孔１９を塞ぐ大きさであれば、正方形や長方形のワッシャを採用してもよい。   In addition, this invention is not limited to said embodiment, A change can be suitably added within the scope of the present invention. For example, the washers 17 and 20 are not limited to round ones, and square or rectangular washers may be employed as long as they are large enough to block the long bolt holes 19.

通常の場所に設置する営巣防止板３は、例えば厚さ５ｍｍの硬質塩化ビニル板を使用することができるが、海岸付近のように電柱１および開閉器１が強風に晒される場所に設置する場合などは、営巣防止板３の下面側に補強リブを設けて、営巣防止板３の強度を高めるようにしてもよい。補強リブを下面側に設けるので、上面を平滑面にすることができる。   As the nesting prevention plate 3 installed in a normal place, for example, a hard vinyl chloride plate having a thickness of 5 mm can be used. However, when installed in a place where the utility pole 1 and the switch 1 are exposed to a strong wind, such as near the coast. For example, a reinforcing rib may be provided on the lower surface side of the nesting prevention plate 3 to increase the strength of the nesting prevention plate 3. Since the reinforcing rib is provided on the lower surface side, the upper surface can be made smooth.

営巣防止板３は、懸架ボルト８を貫通させて上面側から取付ナット１５を締め付けるだけでなく、例えば図７に示すように、営巣防止板３の下面側にＬ字形の脚部２１を設けておき、この脚部２１を懸架ボルト８に締結することにより、営巣防止板３の上面側から一切の突起をなくすようにしてもよい。   The nesting prevention plate 3 not only has the suspension bolt 8 passed through and tightens the mounting nut 15 from the upper surface side, but also has an L-shaped leg 21 on the lower surface side of the nesting prevention plate 3 as shown in FIG. In addition, any protrusions may be eliminated from the upper surface side of the nesting prevention plate 3 by fastening the leg portion 21 to the suspension bolt 8.

本発明を柱上開閉器に取り付けた時の斜視図The perspective view when this invention is attached to a pole switch 取付状態の上面図Top view of the mounted state 取付状態の正面図Front view of the installed state 取付状態の側面図Side view of the mounted state 営巣防止板の上面図Top view of nesting prevention plate 営巣防止板取付部の断面図Cross section of the nesting prevention plate attachment 本発明の別の形態を示す側面図Side view showing another embodiment of the present invention

符号の説明Explanation of symbols

１ 電柱
２ 柱上開閉器
３ 営巣防止板
８ 懸架ボルト
９ａ 腕金
Ａ 営巣防止板の左右方向の長さ
Ｂ 開閉器本体碍子の全長
Ｃ 営巣防止板の前後方向の長さ
Ｄ 続端子の外面から外面までの長さ DESCRIPTION OF SYMBOLS 1 Electric pole 2 Switch on pole 3 Nesting prevention board 8 Suspension bolt 9a Armature A Length of the nesting prevention board in the left-right direction B Total length of the switch body insulator C Length of the nesting prevention board in the front-rear direction D Length to outside

Claims (6)

電柱に設置された柱上開閉器への鳥類の営巣を防止するための営巣防止装置であって、前記柱上開閉器を上方から覆う営巣防止板が設けられ、該営巣防止板の上面は、その表面粗さが最大高さで１ｍｍ以下の平滑面とされたことを特徴とする営巣防止装置。   A nesting prevention device for preventing bird nesting to a pole switch installed on a utility pole, provided with a nesting prevention plate that covers the pole switch from above, the upper surface of the nesting prevention plate is A nesting prevention apparatus characterized in that the surface roughness is a smooth surface having a maximum height of 1 mm or less. 前記営巣防止板は、少なくとも上面部がデュロメータ硬さでＤ５０以上の硬さを有することを特徴とする請求項１に記載の営巣防止装置。   The nesting prevention apparatus according to claim 1, wherein at least the upper surface portion of the nesting prevention plate has a durometer hardness of D50 or more. 前記営巣防止板は、略水平に配置されたことを特徴とする請求項1又は２に記載の営巣防止装置。   The nesting prevention apparatus according to claim 1 or 2, wherein the nesting prevention plate is disposed substantially horizontally. 前記営巣防止板は、電気的絶縁体から形成されたことを特徴とする請求項１、２又は３に記載の営巣防止装置。   The nesting prevention apparatus according to claim 1, 2, or 3, wherein the nesting prevention plate is formed of an electrical insulator. 前記柱上開閉器は、電柱に固定された腕金に懸架され、前記営巣防止板は、前記腕金よりも上方に設けられたことを特徴とする請求項１〜４のいずれかに記載の営巣防止装置。   5. The pole switch according to claim 1, wherein the pole switch is suspended on a metal arm fixed to a power pole, and the nesting prevention plate is provided above the metal arm. 6. Nesting prevention device. 前記営巣防止板は、前記柱上開閉器を腕金に懸架するための懸架ボルトを利用し、該懸架ボルトの上端部に締結されたことを特徴とする請求項５に記載の営巣防止装置。   6. The nesting prevention device according to claim 5, wherein the nesting prevention plate is fastened to an upper end portion of the suspension bolt using a suspension bolt for suspending the pole switch on a brace.
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JP2010129466A (en) * 2008-11-28 2010-06-10 Chugoku Electric Power Co Inc:The Bird injury preventive structure in line switch
JP2016059216A (en) * 2014-09-11 2016-04-21 中国電力株式会社 Nest building accident prevention tool
CN106368494A (en) * 2016-11-04 2017-02-01 国网北京市电力公司 Power distribution line tower assembly
CN110409906A (en) * 2019-08-19 2019-11-05 刘进生 Insulator crossarm with bird damage prevention device
CN110583616A (en) * 2019-09-05 2019-12-20 国网山东省电力公司聊城供电公司 Bird-proof nest building device for electric pole cross arm and installation method
CN112854875A (en) * 2021-01-13 2021-05-28 田云 Bird structure is driven to electric power cross arm

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