JP3773909B2 - Overhead track - Google Patents

Overhead track Download PDF

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Publication number
JP3773909B2
JP3773909B2 JP2003045294A JP2003045294A JP3773909B2 JP 3773909 B2 JP3773909 B2 JP 3773909B2 JP 2003045294 A JP2003045294 A JP 2003045294A JP 2003045294 A JP2003045294 A JP 2003045294A JP 3773909 B2 JP3773909 B2 JP 3773909B2
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JP
Japan
Prior art keywords
insulating cover
wire
arc
arc guide
jumper
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
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JP2003045294A
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Japanese (ja)
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JP2004260869A (en
Inventor
進 富田
武男 宗像
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
THE FURUKAW ELECTRIC CO., LTD.
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THE FURUKAW ELECTRIC CO., LTD.
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Priority to JP2003045294A priority Critical patent/JP3773909B2/en
Publication of JP2004260869A publication Critical patent/JP2004260869A/en
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Description

【0001】
【発明の属する技術分野】
本発明は、裸線の外周長手方向に絶縁カバーを取り付けてなる架空線路に関するものである。なお、本発明において、裸線とは、アルミ撚線、銅撚線、鋼心アルミ撚線等の外周に絶縁被覆が施されていない線をいい、架空線路とは裸線を用いて構成した架空送電線路、架空地線路、シャンパ線路等をいう。
【0002】
【従来の技術】
に架空線路としてのジャンパ線路を示す。このジャンパ線路は、鉄塔アーム10の両側に碍子連20、20及び引き留めクランプ30、30を介して引き留めた鋼心アルミ撚線40,40と、該引き留めた鋼心アルミ撚線40,40間を電気的に接続したジャンパ線50(例えばアルミ撚線)と、該ジャンパ線50の外周長手方向に取り付けた絶縁カバー60とを備えている。なお図において符号70はシャンパ線50の両端に取り付けられたシャンパソケット、80は碍子連70に取り付けられたアークホーンである。
【0003】
上記絶縁カバー60は、特許文献1に記載されているように、鳥害を防止するために取り付けられているものである。
すなわち、ジャンパ線1の外周長手方向に絶縁カバー2を取り付けておくことにより、烏等の大型の鳥が営巣材に用いる針金や金属性ハンガーを銜えて鉄塔アーム等に止まり、このために針金や金属性ハンガーが垂下しても、該垂下した針金や金属性ハンガーは絶縁バーに接触しジャンパ線には直接接触しないので、地絡事故を防止することができるものである。
【0004】
【特許文献1】
特開平5−74131号公報
【0005】
【発明が解決しようとする課題】
しかしながら、上記構成のジャンパ線路においては、アークが走った場合に、該アークが絶縁カバーの端部位置で固定されてしまい、このためにアーク熱によってジャンパ線が損傷し、場合によっては溶断に至るという問題があった。
【0006】
すなわち、例えば、送電線側の径間でギャロッピングやスリートジャンプが発生し、これによって相間短絡事故が生じた場合、または電線に着雪が生じて電線が垂下し、これによって地絡事故が生じた場合には、送電線およびジャンパ線にアークが走る。
【0007】
ジャンパ線に絶縁カバーが取り付けてあると、上記アークは絶縁カバーの端部位置で走りが阻止される。すなわちアークが固定される、このために、アーク熱によってアークが固定した位置のジャンパ線が溶断する等の問題が生じるものである。
【0008】
なお、上記説明はジャンパ線について説明したが、裸線を用いて構成した架空送電線路、架空地線路に絶縁カバーが取り付けられている場合にも同様に該絶縁カバーの端部でアークが固定され、送電線や地線が損傷するという問題が生じるものである。
【0009】
【課題を解決するための手段】
本発明は上記課題を解決した架空線路を提供するもので、その構成は、裸線の外周長手方向に絶縁カバーを取り付けてなる架空線路において、前記絶縁カバーの端末部に、金属製であって一端側が裸線の外周に位置し他端側が絶縁カバーの外周に位置するアークガイドを設けたことを特徴とするものである。
【0010】
上記のように、絶縁カバーの端末部に、金属製であって一端側が裸線の外周に位置し他端側が絶縁カバーの外周に位置するアークガイドを設けておくことにより、裸線を流れるアークを、アークガイドを介して絶縁ガバー上に移行させることができる。したがって絶縁カバーの端部でアークが固定しないので、裸線の溶断等の損傷を確実に防止することができる。なお、絶縁カバーが損傷する恐れがあるが、損傷した絶縁カバーは簡単に取り替えることができるので特に問題はない。
【0011】
【発明の実施の形態】
以下本発明の実施形態を図面を参照して詳細に説明する。
図1は本発明に係る架空線路を、ジャンパ線路に適用した場合である。
ジャンパ線路は、鉄塔アーム10の両側に碍子連20、20及び引き留めクランプ30、30を介して引き留めた鋼心アルミ撚線40,40と、該引き留めた鋼心アルミ撚線4040間を電気的に接続した裸線であるジャンパ線50(例えばアルミ撚線)と、該ジャンパ線50の外周長手方向に取り付けた絶縁カバー60とを備えている点は従来の構成と同じである。なお図1において符号70はャンパ線50の両端に取り付けられたャンパソケット、80は碍子連70に取り付けられたアークホーンである。
【0012】
絶縁カバー60としては、図2に示すように絶縁ゴムシートをロール状に巻き付けたもの、又は図3に示すように所定幅の絶縁テープを所要長さ重ね巻きしたもの、又は図示しないが絶縁プラスチック等で円筒状に作られたもの等任意の構造のものが使用できる。
【0013】
本発明は絶縁カバー60の端末部に、裸線を流れるアークを絶縁カバー60上に移行させるアークガイド100を設けた点に特徴がある。
【0014】
図1の実施形態においては、アークガイド100を、ジャンパ線(裸線)50の外周に巻き付けたアーマロッドで構成してある。すなわちジャンパ線50の外周に巻き付けたアーマロッドの一端部を絶縁カバー60の端末部外周に位置させてアークガイド100を形成している。アーマロッドで構成したアークガイド100は、絶縁カバー60の両端末部にそれぞれ設けられている。
【0015】
図1の実施形態においては、絶縁カバー60の両端末部にアークガイド100としてのアーマロッドをそれぞれ1本巻き付けたが、図4に示すように、アークガイド100としてのアーマロッドは2本平行に並べたものを使用してもよい。なお、アークガイド100としてアーマロッドを使用する場合は、アーマロッドの本数は1本又は3本以上であってもよくその数は特に限定するものではない。
【0016】
絶縁カバー60の端末部外周に位置させるアーマロッドの長さL(図4参照)は、1cm〜10cm程度が好ましい。その理由は、1cm以下であるとジャンパ線が振れた際外れ易くなるという問題があり、10cmを超えると絶縁カバーの絶縁有効距離LAが短くなり、鳥害を有効に防止することができなくなる恐れがあるためである。
【0017】
図5は本発明で使用するアークガイド100の他の実施形態を示すものである。このアークガイド100は、絶縁カバー60の端末部を覆う端末部覆い部101と絶縁カバー60の端末部近傍に位置したジャンパ線の外周を覆うジャンパ線覆い部102とを備えた2つ割り型のもので、金属で形成されている。
【0018】
このアークガイド100は、絶縁カバー60の端末部を覆う端末部覆い部101で絶縁カバー60の端末部を覆うと共にジャンパ線覆い部102で絶縁カバー60の端末部近傍に位置ジャンパ線の外周を覆うように取り付け、ボルト・ナット120で該位置に固定するものである。このようなアークガイド100は、絶縁カバー60の両端末部に取り付けて使用するものである。
【0019】
図6は本発明で使用するアークガイド100の他の実施形態を示すものであり、(イ)は側面図、(ロ)は正面図である。このアークガイド100は、絶縁カバー60の端末部を覆う端末部覆い部101と絶縁カバー60の端末部近傍に位置したジャンパ線の外周を覆うジャンパ線覆い部102とを備えた2つ割り型のもので、金属で形成されている点は、図5に示した実施形態と同様であるが、2つ割りの一端側を蝶番結合130させ、他端側をボルト・ナット120で締め付けるように構成した点で図5に示した実施形態と相違している。このアークガイド100も、絶縁カバー60の両端末部に取り付けて使用するものである。
0020
図7は本発明で使用するアークガイド100の他の実施形態を示すものである。このアークガイド100は、金属性ロッド106と、該金属性ロッド106を絶縁カバー60の端末部に固定するバインド線の固定部材107とから構成されている。
0021
金属性ロッド106は、一端側がジャンパ線50の外周側に位置し他端側が絶縁カバー60の端末部外周に位置しており、ジャンパ線50の外周側に位置した一端側が固定部材107によって、ジャンパ線50側に固定されている。なお、金属性ロッド106の絶縁カバー60の端部外周に位置した部分には隙間hが開いている。このアークガイド100も、絶縁カバー60の両端末部に取り付けて使用するものである。
0022
この実施形態における固定部材107はバインド線に限らず、金属性ロッド106をジャンパ線50の端末部外周に固定できる構造であればよく、その形状は特に限定するものではない。
更に、金属性ロッド106の形状も特に限定するものではなく、棒状、半円筒状、円筒状等であってもよい。
0023
なお上記各実施形態においては、絶縁カバー60の両端末部にアークガイド100を取り付けて使用する場合について説明したが、アークが絶縁カバーの片側からのみしか流れないような線路においては、アークガイド100を絶縁カバーの片端末部側のみに取り付けておけばよい。
0024
上記のように、絶縁カバーの両端末部または片端末部にアークガイド100を取り付けておくことにより、絶縁カバーの端部位置にアークが固定されることが無くなるので、ジャンパ線の溶断等を防止することができる。
0025
すなわち、例えば、送電線側の径間でギャロッピングやスリートジャンプが発生し、これによって相間短絡事故が生じた場合には、送電線およびジャンパ線にアークが走り、絶縁カバーの端末部まで進んだアークは、アークガイド100によって絶縁ガバー60上に移行し、該絶縁ガバー60上で発弧する。このために絶縁カバー60の端部位置にアークが固定されることが無くなるので、ジャンパ線の溶断等を防止することができる。なお、絶縁カバーが損傷する恐れがあるが、損傷した絶縁カバーは簡単に取り替えることができるので特に問題はない。
0026
なお、上記実施形態の説明はジャンパ線について行ったが、本発明は裸線を用いて構成した架空送電線路、架空地線路に絶縁カバーが取り付けられている場合にも同様に適用できるものであり、この場合は送電線等に取り付けられた絶縁カバーの端末部にアークガイドを取り付けるものである。
0027
【発明の効果】
以上のように、本発明に係る架空線路は、裸線の外周長手方向に取り付けた絶縁カバーの端末部に、金属製であって一端側が裸線の外周に位置し他端側が絶縁カバーの外周に位置するアークガイドを設けたので、裸線を流れるアークを、アークガイドを介して絶縁ガバー上に移行させることができる。したがって絶縁カバーの端部でアークが固定しないので、裸線の溶断等の損傷を確実に防止することができる。
【図面の簡単な説明】
【図1】本発明に係る架空線路の一実施形態を示す正面図。
【図2】絶縁カバーの一実施形態を示す斜視図。
【図3】絶縁カバーの他の実施形態を示す斜視図。
【図4】アークガイドの他の実施形態を示す説明図。
【図5】アークガイドの他の実施形態を示す説明図。
【図6】アークガイドの他の実施形態を示すもので(イ)は側面図、(ロ)は正面図。
【図7】アークガイドの他の実施形態を示す説明図。
【図8】従来の架空線路の一実施形態を示す正面図。
【符号の説明】
50ジャンパ線(裸線)
60絶縁カバー
100アークガイド
[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an overhead line formed by attaching an insulating cover in the longitudinal direction of the outer circumference of a bare wire. In the present invention, the bare wire refers to a wire having no insulation coating on the outer periphery thereof, such as an aluminum stranded wire, a copper stranded wire, a steel core aluminum stranded wire, etc., and the overhead line is configured using a bare wire. An overhead power transmission line, an overhead ground line, a champaline, etc.
[0002]
[Prior art]
FIG. 8 shows a jumper line as an overhead line. This jumper track is connected between the steel core aluminum stranded wires 40 and 40 and the steel core aluminum stranded wires 40 and 40 held on both sides of the tower arm 10 via the insulator series 20 and 20 and the holding clamps 30 and 30. An electrically connected jumper wire 50 (for example, an aluminum stranded wire) and an insulating cover 60 attached in the longitudinal direction of the outer periphery of the jumper wire 50 are provided. In FIG. 8 , reference numeral 70 denotes a champagne socket attached to both ends of the champagne wire 50, and 80 denotes an arc horn attached to the insulator series 70.
[0003]
As described in Patent Document 1, the insulating cover 60 is attached to prevent bird damage.
In other words, by attaching the insulating cover 2 in the longitudinal direction of the outer periphery of the jumper wire 1, large birds such as spiders hold the wire or metal hanger used for the nesting material and stop on the steel tower arm or the like. be metallic hangers are suspended, since wire and metal hanger beat the hanging is not in direct contact with the jumper wire in contact with the insulating cover, in which it is possible to prevent a ground fault.
[0004]
[Patent Document 1]
JP-A-5-74131 [0005]
[Problems to be solved by the invention]
However, in the jumper line having the above configuration, when the arc runs, the arc is fixed at the end position of the insulating cover, and therefore, the jumper wire is damaged by the arc heat, and in some cases, fusing occurs. There was a problem.
[0006]
That is, for example, when a galloping or three-way jump occurs between the diameters on the transmission line side, which causes a short circuit accident between phases, or when a snowfall occurs on the electric wire and the electric wire droops, thereby causing a ground fault The arc runs on the transmission line and jumper line.
[0007]
If the insulating cover is attached to the jumper wire, the arc is prevented from running at the end portion of the insulating cover. In other words, the arc is fixed, which causes a problem that the jumper wire at the position where the arc is fixed is melted by the arc heat.
[0008]
In the above description, jumper wires have been described. However, when an insulation cover is attached to an overhead power transmission line constructed using bare wires or an overhead ground line, the arc is fixed at the end of the insulation cover. The problem of damage to power transmission lines and ground lines arises.
[0009]
[Means for Solving the Problems]
The present invention provides an aerial line that solves the above-described problems, and the structure thereof is an aerial line in which an insulating cover is attached in the outer peripheral longitudinal direction of the bare wire, and the end part of the insulating cover is made of metal. one end in which the other end located on the outer periphery of the bare wire is characterized by providing an arc guide you position on the outer periphery of the insulating cover.
[0010]
As described above, the terminal portion of the insulation cover, by the other end located on the outer circumference of one end bare be made of metal is preferably provided an arc guide you position on the outer periphery of the insulating cover, flows through the bare wire The arc can be transferred onto the insulating governor via the arc guide. Therefore, since the arc is not fixed at the end of the insulating cover, it is possible to reliably prevent damage such as fusing of the bare wire. Although the insulating cover may be damaged, there is no particular problem because the damaged insulating cover can be easily replaced.
[0011]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of the present invention will be described below in detail with reference to the drawings.
FIG. 1 shows a case where an overhead track according to the present invention is applied to a jumper track.
The jumper track is electrically connected between the steel core aluminum stranded wires 40 , 40 and the steel core aluminum stranded wires 40 , 40 retained on both sides of the tower arm 10 via the insulator series 20, 20 and the retaining clamps 30, 30. The configuration is the same as the conventional configuration in that a jumper wire 50 (for example, an aluminum stranded wire) that is a bare wire connected to each other and an insulating cover 60 attached in the longitudinal direction of the outer periphery of the jumper wire 50 are provided. Reference numeral 70 in FIG. 1 is di Yanpasoketto attached to both ends of the jumpers have lines 50, 80 are arcing horn which is attached to the insulator string 70.
[0012]
As the insulating cover 60, an insulating rubber sheet is wound in a roll shape as shown in FIG. 2, or an insulating tape having a predetermined width is repeatedly wound as shown in FIG. The thing of arbitrary structures, such as what was made cylindrical by the etc., can be used.
[0013]
The present invention is characterized in that an arc guide 100 for transferring an arc flowing through a bare wire onto the insulating cover 60 is provided at a terminal portion of the insulating cover 60.
[0014]
In the embodiment of FIG. 1, the arc guide 100 is constituted by an armor rod wound around the outer periphery of a jumper wire (bare wire) 50. That is, the arc guide 100 is formed by positioning one end portion of the armor rod wound around the outer periphery of the jumper wire 50 on the outer periphery of the terminal portion of the insulating cover 60. The arc guides 100 made of armor rods are provided at both end portions of the insulating cover 60, respectively.
[0015]
In the embodiment of FIG. 1, one armor rod as the arc guide 100 is wound around both end portions of the insulating cover 60. However, as shown in FIG. 4, two armor rods as the arc guide 100 are arranged in parallel. Things may be used. In addition, when using an armor rod as the arc guide 100, the number of armor rods may be one or three or more, and the number is not particularly limited.
[0016]
The length L (see FIG. 4) of the armor rod positioned on the outer periphery of the terminal portion of the insulating cover 60 is preferably about 1 cm to 10 cm. The reason is that if it is 1 cm or less, the jumper wire is likely to come off when it is swung, and if it exceeds 10 cm, the insulation effective distance LA of the insulating cover is shortened, and bird damage may not be effectively prevented. Because there is.
[0017]
FIG. 5 shows another embodiment of the arc guide 100 used in the present invention. The arc guide 100 is a split type including a terminal cover portion 101 that covers the terminal portion of the insulating cover 60 and a jumper wire cover portion 102 that covers the outer periphery of the jumper wire located near the terminal portion of the insulating cover 60. It is made of metal.
[0018]
The arc guide 100 covers the terminal portion of the insulating cover 60 with the terminal portion covering portion 101 covering the terminal portion of the insulating cover 60 and covers the outer periphery of the position jumper wire in the vicinity of the terminal portion of the insulating cover 60 with the jumper wire covering portion 102. The bolts and nuts 120 are fixed in this position. Such an arc guide 100 is used by being attached to both end portions of the insulating cover 60.
[0019]
FIG. 6 shows another embodiment of the arc guide 100 used in the present invention, in which (A) is a side view and (B) is a front view. The arc guide 100 is a split type including a terminal cover portion 101 that covers the terminal portion of the insulating cover 60 and a jumper wire cover portion 102 that covers the outer periphery of the jumper wire located near the terminal portion of the insulating cover 60. However, it is the same as the embodiment shown in FIG. 5 in that it is made of metal, but is configured such that one end side of the two parts is hinge-coupled 130 and the other end side is tightened with a bolt / nut 120. This is different from the embodiment shown in FIG. This arc guide 100 is also used by being attached to both end portions of the insulating cover 60.
[ 0020 ]
FIG. 7 shows another embodiment of the arc guide 100 used in the present invention. The arc guide 100 includes a metallic rod 106, that consists the fixed member 107 of the binding wire to fix the gold attribute rod 106 to the terminal portion of the insulation cover 60.
[ 0021 ]
One end side of the metallic rod 106 is positioned on the outer peripheral side of the jumper wire 50 and the other end side is positioned on the outer periphery of the terminal portion of the insulating cover 60, and one end side positioned on the outer peripheral side of the jumper wire 50 is fixed by the fixing member 107. It is fixed to the line 50 side. Note that a gap h is opened in a portion of the metallic rod 106 located on the outer periphery of the end of the insulating cover 60. This arc guide 100 is also used by being attached to both end portions of the insulating cover 60.
[ 0022 ]
The fixing member 107 in this embodiment is not limited to the bind wire, and any structure that can fix the metallic rod 106 to the outer periphery of the terminal portion of the jumper wire 50 may be used, and the shape thereof is not particularly limited.
Further, the shape of the metallic rod 106 is not particularly limited, and may be a rod shape, a semi-cylindrical shape, a cylindrical shape, or the like.
[ 0023 ]
In each of the above embodiments, the case where the arc guide 100 is attached to both ends of the insulating cover 60 has been described. However, the arc guide 100 is used in a line where the arc flows only from one side of the insulating cover. Should be attached only to one end of the insulating cover.
[ 0024 ]
As described above, by attaching the arc guide 100 to both end portions or one end portion of the insulating cover, the arc is not fixed at the end position of the insulating cover, so that the jumper wire is prevented from fusing. can do.
[ 0025 ]
That is, for example, when a galloping or three-way jump occurs between the diameters on the transmission line side, and an inter-phase short-circuit accident occurs, an arc runs on the transmission line and the jumper line, and the arc travels to the end of the insulation cover. Is transferred onto the insulating governor 60 by the arc guide 100 and ignites on the insulating governor 60. For this reason, since the arc is not fixed at the end position of the insulating cover 60, it is possible to prevent the jumper wire from being melted. Although the insulating cover may be damaged, there is no particular problem because the damaged insulating cover can be easily replaced.
[ 0026 ]
Although the above embodiment has been described with respect to jumper wires, the present invention can be similarly applied to an overhead power transmission line configured using bare wires, and when an insulating cover is attached to the overhead ground line. In this case, the arc guide is attached to the terminal portion of the insulating cover attached to the power transmission line or the like.
[ 0027 ]
【The invention's effect】
As described above, the overhead line according to the present invention is made of metal at the end portion of the insulating cover attached in the longitudinal direction of the outer periphery of the bare wire, and one end side is located on the outer periphery of the bare wire and the other end side is the outer periphery of the insulating cover. it is provided with the to that arc guide position, the arc flowing in the bare wire through the arc guide can be transferred onto the insulating Gabber. Therefore, since the arc is not fixed at the end of the insulating cover, it is possible to reliably prevent damage such as fusing of the bare wire.
[Brief description of the drawings]
FIG. 1 is a front view showing an embodiment of an overhead line according to the present invention.
FIG. 2 is a perspective view showing an embodiment of an insulating cover.
FIG. 3 is a perspective view showing another embodiment of the insulating cover.
FIG. 4 is an explanatory view showing another embodiment of the arc guide.
FIG. 5 is an explanatory view showing another embodiment of the arc guide.
6A and 6B show another embodiment of the arc guide, where FIG. 6A is a side view and FIG. 6B is a front view.
FIG. 7 is an explanatory view showing another embodiment of the arc guide.
FIG. 8 is a front view showing an embodiment of a conventional overhead track.
[Explanation of symbols]
50 jumper line (bare line)
60 insulation cover 100 arc guide

Claims (1)

裸線の外周長手方向に絶縁カバーを取り付けてなる架空線路において、前記絶縁カバーの端末部に、金属製であって一端側が裸線の外周に位置し他端側が絶縁カバーの外周に位置するアークガイドを設けたことを特徴とする架空線路。In the bare outer peripheral longitudinally overhead line comprising an insulation cover of the terminal portion of the insulation cover, the other end located on the outer circumference of one end bare be made of metal you located on the outer periphery of the insulating cover An overhead track characterized by an arc guide.
JP2003045294A 2003-02-24 2003-02-24 Overhead track Expired - Fee Related JP3773909B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2003045294A JP3773909B2 (en) 2003-02-24 2003-02-24 Overhead track

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2003045294A JP3773909B2 (en) 2003-02-24 2003-02-24 Overhead track

Publications (2)

Publication Number Publication Date
JP2004260869A JP2004260869A (en) 2004-09-16
JP3773909B2 true JP3773909B2 (en) 2006-05-10

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
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Country Status (1)

Country Link
JP (1) JP3773909B2 (en)

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