JP2004229358A - Bus duct and plug-in appliance - Google Patents

Bus duct and plug-in appliance Download PDF

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Publication number
JP2004229358A
JP2004229358A JP2003011495A JP2003011495A JP2004229358A JP 2004229358 A JP2004229358 A JP 2004229358A JP 2003011495 A JP2003011495 A JP 2003011495A JP 2003011495 A JP2003011495 A JP 2003011495A JP 2004229358 A JP2004229358 A JP 2004229358A
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Prior art keywords
plug
bus duct
housing
inspection
appliance
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JP2003011495A
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Japanese (ja)
Inventor
Takashi Nakajima
孝志 中島
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Sumiden Transmission and Distribution Systems Products Corp
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Sumiden Transmission and Distribution Systems Products Corp
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Priority to JP2003011495A priority Critical patent/JP2004229358A/en
Publication of JP2004229358A publication Critical patent/JP2004229358A/en
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  • Breakers (AREA)

Abstract

<P>PROBLEM TO BE SOLVED: To provide a bus duct and a plug-in appliance capable of facilitating the inspection of a connection state of a connection portion between the bus duct and the plug-in appliance and a branch connection portion in the plug-in appliance. <P>SOLUTION: The bus duct 1 stores and retains a plurality of plate-shaped conductors 10 in a housing 11. The duct 1 includes a plug-in hole 3 for fitting the plug-in appliance 2 to the housing 11, and an inspection window 4 provided at a position facing the plug-in hole 3. The plug-in appliance 2 mounted and branched on the bus duct 1 for storing and retaining the plurality of plate-shaped conductors in the housing 11 includes inspection windows 5, 6 at positions which permits the electrical connection portion in the appliance 2 to be seen. <P>COPYRIGHT: (C)2004,JPO&NCIPI

Description

【０００１】
【発明の属する技術分野】
本発明は、バスダクト内に収納保持される導体とバスダクトの分岐装置であるプラグイン器具との接続部や、プラグイン器具内の分岐接続部の点検が容易に行うことが可能なバスダクト及びプラグイン器具に関する。
【０００２】
【従来の技術】
バスダクトとして一般に、複数の板状の裸導体を並列させ、各導体間を絶縁材で離間してハウジング内に収納保持する裸導体バスダクトと、絶縁被覆された板状の電気導体を複数並列させてハウジング内に収納保持する絶縁バスダクトとが知られている。これらバスダクトのハウジングの一面には、プラグインホールが設けられ、このプラグインホールには、バスダクトから分岐をとるプラグイン器具が取り付けられる（例えば、特許文献１参照）。プラグイン器具は、プラグインスイッチボックスなどが知られている。プラグイン器具の内部には、バスダクトの導体と電気的に接続される連結部や、この連結部と電気的に接続されると共に、分岐のための別のケーブルが接続される接続端子などを具える。また、連結部と接続端子との間にプラグインブレーカを具えるものもある。
【０００３】
【特許文献１】
実開平４−３９００３号公報
【０００４】
【発明が解決しようとする課題】
バスダクトのハウジングやプラグイン器具のボックスケースは、一般に鋼板やアルミニウム合金板から形成されている。そのため、従来、バスダクトとプラグイン器具との接続部の接続状態を点検するには、まず、通電を停止し、ハウジングの一面を取り外し、ハウジング内を目視できる状態にしてから行われる。また、プラグイン器具内の電気的接続部、具体的には、バスダクトの導体とプラグイン器具内に具える連結部との接続部や分岐接続部（プラグイン器具内に具える接続端子と別のケーブルとの接続部）の接続状態を点検する場合も、同様にプラグイン器具の一面を取り外し、器具内を目視できる状態にしてから行われる。
【０００５】
しかし、従来のバスダクトやプラグイン器具では、点検毎に通電を停止させたり、ハウジングやプラグイン器具を分解開放させたりするため、点検の作業性が極めて悪く、容易に点検できないという問題がある。また、施工時の接続不良などによって接続部付近に異常過熱などが発生した場合、ハウジングの外からその異常を目視によってほとんど確認できないため、異常を早期に発見することが非常に困難である。従って、従来のバスダクトやプラグイン器具は、使用限界程度まで接続部が焼け付いてから発見される恐れがある。更に、接続部が複数存在する場合、ハウジングの外から異常が目視確認しにくいことから、異常箇所の特定が困難であり、異常が生じていない箇所を分解開放する恐れもあり、ますます異常箇所の発見が遅れる恐れがある。
【０００６】
そこで、本発明は、バスダクトとプラグイン器具との接続部やプラグイン器具内の分岐接続部などの接続状態を容易に点検できるバスダクト及びプラグイン器具を提供することを目的とする。
【０００７】
【課題を解決するための手段】
本発明バスダクトは、複数の板状の導体をハウジング内に収納保持するバスダクトであって、前記ハウジングにプラグイン器具を取り付けるプラグインホール部と、前記プラグインホール部と対向する位置に設けた点検窓とを有することを特徴とする。また、本発明プラグイン器具は、複数の板状の導体をハウジング内に収納保持するバスダクトに取り付けられて分岐をとるプラグイン器具であって、器具内の電気的接続部が見えるところに点検窓を有することを特徴とする。
【０００８】
本発明は、バスダクトのハウジングやプラグイン器具のボックスケースに点検窓を設けることで、バスダクトとプラグイン器具との接続部やプラグイン器具内の分岐接続部などの接続状態を容易に点検することができる。なお、本発明においてプラグイン器具内の電気的接続部とは、器具内に具える連結部とハウジング内の導体との接続部や、この連結部と電気的に接続される接続端子と分岐用の別のケーブルとの分岐接続部が挙げられる。
【０００９】
バスダクトのハウジング内やプラグイン器具のボックスケース内は、湿気や雨などの水や塵埃などが侵入すると、塵埃によって内部の温度が上昇したり、水によって絶縁性能が低下したりするなどの問題がある。また、絶縁性能が低下することで、ハウジング内の導体間で短絡電流が発生し易くなる恐れもある。そのため、バスダクトのハウジング内やプラグイン器具のボックスケース内は、密閉状態に保持する必要がある。そこで、本発明において点検窓は、ハウジングやボックスケースに点検穴を設け、この点検穴に、接続状態が確認できる程度に透明であり、かつ一定の強度を有する窓部材を装着させることが好ましい。窓部材は、例えば、透明のアクリル板などが適する。
【００１０】
本発明バスダクトにおいて点検窓は、導体とプラグイン器具との接続状態が容易に確認できるように、プラグインホール部と対向する位置に設ける。点検窓は、プラグイン器具が取り付けられるプラグインホール部に対してのみ設けてもよいが、バスダクトに設けた全てのプラグインホール部に対して、それぞれ点検窓を設けることが好ましい。
【００１１】
本発明プラグイン器具において点検窓は、例えば、その内部に具える連結部とハウジング内の導体との接続状態を確認できるところに設ける。具体的には、ボックスケースにおいて連結部が配置された箇所に最も近い面、又はこの面と対向する面に設けることが好ましい。また、本発明プラグイン器具において点検窓は、上記と同様に、ボックスケースにおいて接続端子が配置された箇所に最も近い面、又はこの面と対向する面に設けてもよい。このような本発明プラグイン器具に設ける上記二つの点検窓は、いずれか一方のみでもよいが、双方共に具えることがより好ましい。
【００１２】
なお、本発明においてバスダクトとは、裸導体バスダクト及び絶縁バスダクトの双方を含むものとする。また、本発明においてプラグイン器具とは、プラグインスイッチボックスなどのバスダクトに取り付けて分岐をとるための装置とする。プラグイン器具は、裸導体バスダクト、絶縁バスダクトのそれぞれに適合した公知のものを用いるとよい。
【００１３】
【発明の実施の形態】
以下、本発明の実施の形態を説明する。
（バスダクト）
図１（Ａ）は、本発明バスダクトに本発明プラグイン器具を取り付けた状態を表す平面、同（Ｂ）は、その正面図である。本発明バスダクト１は、複数の板状の導体１０をハウジング１１内に収納保持する。このハウジング１１の一面には、プラグイン器具２を取り付けるプラグインホール部３と、プラグインホール部３と対向する位置に設けた点検窓４とを有する。
【００１４】
本例では、全てのプラグインホール部３に対して、対向する位置に点検窓４を設けた。点検窓４は、ハウジング１１に点検穴を設け、この点検穴を覆うように窓部材を装着させている。窓部材は、透明なアクリル板を用いた。
【００１５】
本発明バスダクト１は、プラグインホール部３にプラグイン器具２が取り付けられても、バスダクト１を分解開放することなく、ハウジング１１内の導体１０とプラグイン器具２との接続状態が点検窓４から確認することができる。
【００１６】
本例においてバスダクト１は、ハウジング１１に点検窓４を有する以外は、従来のバスダクトと同様の構成である。具体的には、バスダクト１は、複数の板状の裸導体１０を並列させ、各導体間を絶縁材（図示せず）で離間してハウジング１１内に収納保持する裸導体バスダクトである。ハウジング１１には、複数のプラグインホール部３が設けられており、プラグイン器具２が取り付けられている。使用していないプラグインホール部３は、通常、カバー（図示せず）を取り付けており、ハウジング１１内を密閉状態に保持している。また、ハウジング１１には、バスダクト１とプラグイン器具２間とをアースするアース端子１２を取り付けている。本例に示すバスダクト１は、図１（Ｂ）において下方に支持架台（図示せず）などが配置され、この支持架台により支持されるものである。
【００１７】
（プラグイン器具）
図２（Ａ）は、本発明プラグイン器具２の平面図、同（Ｂ）は、その正面図である。本発明プラグイン器具２は、複数の板状の導体１０（図１参照）をハウジング１１（同）内に収納保持するバスダクト１（同）に取り付けられて分岐をとる器具である。プラグイン器具２のボックスケース２０の一面には、器具２内の電気的接続部が見えるところに点検窓５、６を有する。
【００１８】
本例において点検窓５は、連結部２１が配置された箇所に最も近い面（図２（Ｂ）において下面）に対向する面（同上面）で、プラグイン器具２の内部に具える連結部２１とハウジング１１内の導体１０との接続状態を確認できるところに設けた。また、点検窓６は、接続端子２２が配置された箇所に最も近い面（図２（Ｂ）において上面）で、プラグイン器具２の内部に具える接続端子２２と分岐用の別のケーブルとの接続状態を確認できるところに設けた。本例では、点検窓５、６は、同一面（図２（Ｂ）において上面）に設けた。点検窓５、６は、点検窓４（図１参照）と同様にボックスケース２０に点検穴を設け、この点検穴を覆うように窓部材を装着させている。窓部材は、透明なアクリル板を用いた。
【００１９】
本発明プラグイン器具２は、バスダクト１のプラグインホール部３（図１参照）に取り付けられた際、プラグイン器具２を分解開放することなく、ハウジング１１内の導体１０との接続状態が点検窓５から確認することができる。また、同様に、分岐用の別のケーブルとの接続状態が点検窓６から確認することができる。
【００２０】
本例においてプラグイン器具２は、ボックスケース２０に点検窓５、６を有する以外は、従来のプラグイン器具と同様の構成である。具体的には、バスダクト１の導体１０と接続される連結部２１と、この連結部２１と電気的に接続されると共に、分岐用の別のケーブル（図示せず）が接続される接続端子２２とを具える。連結部２１は、一端にバスダクト１の導体１０を挟持する挟持部２３を具える。挟持部２３は、ボックスケース２０の外部に設けられており、ボックス２０の内部には、挟持部２３に挟まれた各導体１０に電気的に接続される導電部２４が収納されている。挟持部２３は、導体１０を挟持できる程度の幅を有している（図１（Ａ）参照）。各導電部２４は、絶縁コンタクト３１により絶縁距離を保持されている。導電部２４と接続端子２２とは、ブレーカ部２５を介して接続される。ブレーカ部２５には、スイッチ２６が設けられており、分岐側に通電する際は、このスイッチ２６をＯＮにし、異常の発生や分岐をとる場合などで通電を停止する際は、このスイッチ２６をＯＦＦにする。このようなプラグイン器具２のバスダクト１への取り付けは、連結部２１の近傍に設けられた一対の装着部２７でハウジング１１を挟み、装着部２７に嵌合するネジ２８をバスダクト１のハウジング１１にねじ込むことで行われる。図１（Ａ）では、装着部２７を省略している。プラグイン器具２のボックスケース２０は、上面が蝶着されて開閉可能な構成であり、通常は閉じられて器具２内を密閉状態に保持している。本例では、ボックスケース２０の外部にバスダクト１１を支持する支持架台（図示せず）に固定するための固定板２９を設けたものを示している。また、本例では、プラグイン器具２内に別のケーブルを挿入し易いように、別のケーブルが挿入される面に一対のゴム板３０を配置し、ゴム板３０間でケーブルを挟む構成のものを示している。
【００２１】
【発明の効果】
以上、説明したように本発明バスダクトによれば、バスダクトの導体とプラグイン器具の連結部との接続状態の点検が、バスダクトを分解開放することなく容易に点検できるという優れた効果を奏し得る。また、点検が容易であるため、点検回数を増加させて事故を未然に防ぐことも可能である。更に、異常が生じた場合、異常箇所の特定が早期にできるため、事故を最小限にすることができる。
【００２２】
一方、本発明プラグイン器具は、器具内の連結部とハウジング内の導体との接続状態や、器具内の接続端子と分岐用の別のケーブルとの接続状態を容易に点検できる。そのため、上記本発明バスダクトと同様に事故を未然に防止し、事故が生じた場合でも最小限にとどめることができる。
【図面の簡単な説明】
【図１】（Ａ）は、本発明バスダクトに本発明プラグイン器具を取り付けた状態を示す平面図、同（Ｂ）は、その正面図である。
【図２】（Ａ）は、本発明プラグイン器具の正面図、同（Ｂ）は、その側面図である。
【符号の説明】
１ バスダクト ２ プラグイン器具 ３ プラグインホール部
４、５、６ 点検窓
１０ 導体 １１ ハウジング １２ アース端子
２０ ボックスケース ２１ 連結部 ２２ 接続端子 ２３ 挟持部 ２４ 導電部
２５ ブレーカ部 ２６ スイッチ ２７ 装着部 ２８ ネジ ２９ 固定板
３０ ゴム板 ３１ 絶縁コンタクト[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a bus duct and a plug-in capable of easily inspecting a connection portion between a conductor housed and held in a bus duct and a plug-in device as a branch device of the bus duct, and a branch connection portion in the plug-in device. Equipment related.
[0002]
[Prior art]
In general, a plurality of plate-shaped bare conductors are arranged in parallel as a bus duct, and a plurality of plate-shaped electric conductors covered with insulation are arranged in parallel with a bare conductor bus duct that holds and holds the conductors in a housing while separating each conductor with an insulating material. An insulated bus duct housed and held in a housing is known. A plug-in hole is provided on one surface of the housing of these bus ducts, and a plug-in device that branches off from the bus duct is attached to the plug-in hole (for example, see Patent Document 1). As a plug-in device, a plug-in switch box or the like is known. Inside the plug-in device, there is provided a connection portion that is electrically connected to the conductor of the bus duct, and a connection terminal that is electrically connected to the connection portion and to which another cable for branching is connected. I can. Further, there is also a device having a plug-in breaker between the connecting portion and the connection terminal.
[0003]
[Patent Document 1]
Published Japanese Utility Model Application No. 4-39003
[Problems to be solved by the invention]
The housing of the bus duct and the box case of the plug-in device are generally formed from a steel plate or an aluminum alloy plate. Therefore, conventionally, in order to check the connection state of the connection portion between the bus duct and the plug-in device, first, the power supply is stopped, one surface of the housing is removed, and the inside of the housing is visually checked. In addition, an electrical connection portion in the plug-in device, specifically, a connection portion between a conductor of the bus duct and a connection portion provided in the plug-in device or a branch connection portion (separate from a connection terminal provided in the plug-in device) In the same manner, when checking the connection state of the connection portion with the cable, the plug-in device is removed from one side so that the inside of the device can be visually checked.
[0005]
However, the conventional bus duct or plug-in device has a problem that the workability of the inspection is extremely poor and the inspection cannot be performed easily because the energization is stopped every time the inspection is performed or the housing and the plug-in device are disassembled and opened. Further, when abnormal overheating or the like occurs in the vicinity of the connection portion due to poor connection at the time of construction or the like, it is very difficult to visually detect the abnormality from outside the housing, and it is very difficult to find the abnormality at an early stage. Therefore, the conventional bus duct or plug-in device may be found after the connecting portion is burned to the limit of use. Furthermore, when there are a plurality of connection parts, it is difficult to visually confirm the abnormality from outside the housing, so it is difficult to identify the abnormal part, and there is a possibility that the part where the abnormality does not occur may be disassembled and opened. Discovery may be delayed.
[0006]
Therefore, an object of the present invention is to provide a bus duct and a plug-in device that can easily check a connection state between a connection portion between a bus duct and the plug-in device and a branch connection portion in the plug-in device.
[0007]
[Means for Solving the Problems]
The bus duct of the present invention is a bus duct for accommodating and holding a plurality of plate-shaped conductors in a housing, and a plug-in hole portion for attaching a plug-in device to the housing, and an inspection provided at a position facing the plug-in hole portion. And a window. Further, the plug-in device of the present invention is a plug-in device which is attached to a bus duct for accommodating and holding a plurality of plate-shaped conductors in a housing and takes a branch. It is characterized by having.
[0008]
The present invention provides an inspection window in a housing of a bus duct or a box case of a plug-in device, thereby easily checking a connection state of a connection portion between the bus duct and the plug-in device and a branch connection portion in the plug-in device. Can be. In the present invention, the electrical connection portion in the plug-in device is a connection portion between the connection portion provided in the device and the conductor in the housing, or a connection terminal electrically connected to the connection portion and a branch. Branch connection with another cable.
[0009]
If water or dust, such as moisture or rain, enters the inside of the housing of the bus duct or the box case of the plug-in device, the dust will raise the internal temperature or reduce the insulation performance due to the water. is there. In addition, a decrease in insulation performance may cause a short-circuit current to easily occur between conductors in the housing. Therefore, it is necessary to keep the inside of the housing of the bus duct and the box case of the plug-in device in a sealed state. In view of this, in the present invention, it is preferable that the inspection window is provided with an inspection hole in the housing or the box case, and a window member having a certain strength, which is transparent enough to confirm a connection state, is attached to the inspection hole. For the window member, for example, a transparent acrylic plate is suitable.
[0010]
In the bus duct of the present invention, the inspection window is provided at a position facing the plug-in hole so that the connection state between the conductor and the plug-in device can be easily confirmed. The inspection window may be provided only for the plug-in hole to which the plug-in device is attached, but it is preferable to provide an inspection window for each of the plug-in holes provided in the bus duct.
[0011]
In the plug-in device of the present invention, the inspection window is provided, for example, at a place where the connection state between the connecting portion provided therein and the conductor in the housing can be checked. Specifically, it is preferable to provide the box case on the surface closest to the place where the connecting portion is arranged, or on the surface facing this surface. In addition, in the plug-in device of the present invention, the inspection window may be provided on the surface of the box case closest to the location where the connection terminal is arranged, or on the surface facing this surface, as described above. Either one of the two inspection windows provided in such a plug-in device of the present invention may be provided, but it is more preferable that both are provided.
[0012]
In the present invention, the bus duct includes both a bare conductor bus duct and an insulated bus duct. In the present invention, a plug-in device is a device that is attached to a bus duct such as a plug-in switch box to take a branch. A well-known plug-in device suitable for each of the bare conductor bus duct and the insulated bus duct may be used.
[0013]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, embodiments of the present invention will be described.
(Bus duct)
1A is a plan view showing a state where the plug-in device of the present invention is attached to the bus duct of the present invention, and FIG. 1B is a front view thereof. The bus duct 1 of the present invention stores and holds a plurality of plate-shaped conductors 10 in a housing 11. One surface of the housing 11 has a plug-in hole 3 for mounting the plug-in device 2 and an inspection window 4 provided at a position facing the plug-in hole 3.
[0014]
In this example, the inspection window 4 is provided at a position facing all the plug-in holes 3. The inspection window 4 is provided with an inspection hole in the housing 11, and a window member is attached so as to cover the inspection hole. A transparent acrylic plate was used for the window member.
[0015]
In the bus duct 1 of the present invention, even when the plug-in device 2 is attached to the plug-in hole 3, the connection state between the conductor 10 in the housing 11 and the plug-in device 2 is checked without disassembling and opening the bus duct 1. Can be confirmed from.
[0016]
In this example, the bus duct 1 has the same configuration as the conventional bus duct except that the housing 11 has the inspection window 4. More specifically, the bus duct 1 is a bare conductor bus duct in which a plurality of plate-shaped bare conductors 10 are arranged in parallel, and the respective conductors are separated from each other by an insulating material (not shown) and housed and held in the housing 11. A plurality of plug-in holes 3 are provided in the housing 11, and the plug-in device 2 is attached. The unused plug-in hole portion 3 is usually provided with a cover (not shown) to keep the inside of the housing 11 in a sealed state. The housing 11 is provided with a ground terminal 12 for grounding the space between the bus duct 1 and the plug-in device 2. In the bus duct 1 shown in this example, a support base (not shown) and the like are arranged below in FIG. 1B and are supported by the support base.
[0017]
(Plug-in device)
FIG. 2A is a plan view of the plug-in device 2 of the present invention, and FIG. 2B is a front view thereof. The plug-in device 2 of the present invention is a device which is attached to a bus duct 1 (same as above) for accommodating and holding a plurality of plate-shaped conductors 10 (see FIG. 1) in a housing 11 (same as above) and forks. On one surface of the box case 20 of the plug-in device 2, inspection windows 5 and 6 are provided so that the electrical connection portion in the device 2 can be seen.
[0018]
In this example, the inspection window 5 is a surface (the upper surface) opposed to the surface (the lower surface in FIG. 2B) closest to the place where the connecting portion 21 is disposed, and the connecting portion provided inside the plug-in device 2. It is provided at a place where the connection state between the conductor 21 and the conductor 10 in the housing 11 can be checked. In addition, the inspection window 6 has a surface (the upper surface in FIG. 2B) closest to the place where the connection terminal 22 is arranged, and the connection terminal 22 provided inside the plug-in device 2 and another branching cable. It was provided in a place where the connection status could be checked. In this example, the inspection windows 5 and 6 are provided on the same surface (the upper surface in FIG. 2B). The inspection windows 5 and 6 are provided with an inspection hole in the box case 20 similarly to the inspection window 4 (see FIG. 1), and a window member is attached so as to cover the inspection hole. A transparent acrylic plate was used for the window member.
[0019]
When the plug-in device 2 of the present invention is attached to the plug-in hole 3 of the bus duct 1 (see FIG. 1), the connection state with the conductor 10 in the housing 11 is checked without disassembling and opening the plug-in device 2. It can be confirmed from the window 5. Similarly, the state of connection with another branching cable can be confirmed from the inspection window 6.
[0020]
In this example, the plug-in device 2 has the same configuration as the conventional plug-in device except that the box case 20 has the inspection windows 5 and 6. Specifically, a connection portion 21 connected to the conductor 10 of the bus duct 1 and a connection terminal 22 electrically connected to the connection portion 21 and connected to another branching cable (not shown). And The connecting portion 21 has a holding portion 23 for holding the conductor 10 of the bus duct 1 at one end. The holding portion 23 is provided outside the box case 20, and a conductive portion 24 electrically connected to each conductor 10 held between the holding portions 23 is housed inside the box 20. The holding portion 23 has a width enough to hold the conductor 10 (see FIG. 1A). Each conductive portion 24 is maintained at an insulating distance by an insulating contact 31. The conductive part 24 and the connection terminal 22 are connected via a breaker part 25. The breaker unit 25 is provided with a switch 26. When the power is supplied to the branch side, the switch 26 is turned ON. When the power supply is stopped in the event of an abnormality or a branch is taken, the switch 26 is used. Turn off. To attach such a plug-in device 2 to the bus duct 1, the housing 11 is sandwiched between a pair of mounting portions 27 provided in the vicinity of the connecting portion 21, and a screw 28 fitted to the mounting portion 27 is attached to the housing 11 of the bus duct 1. It is done by screwing in. In FIG. 1A, the mounting section 27 is omitted. The box case 20 of the plug-in device 2 is configured such that the upper surface is hinged and can be opened and closed, and is normally closed to keep the inside of the device 2 in a sealed state. In this example, a case is shown in which a fixing plate 29 for fixing to a support base (not shown) for supporting the bus duct 11 is provided outside the box case 20. In this example, a pair of rubber plates 30 are arranged on a surface into which another cable is inserted so that another cable is easily inserted into the plug-in device 2, and the cable is sandwiched between the rubber plates 30. Showing things.
[0021]
【The invention's effect】
As described above, according to the bus duct of the present invention, it is possible to provide an excellent effect that the connection state between the conductor of the bus duct and the connecting portion of the plug-in device can be easily checked without disassembling and opening the bus duct. In addition, since the inspection is easy, it is possible to prevent an accident by increasing the number of inspections. Furthermore, when an abnormality occurs, the location of the abnormality can be specified early, so that the accident can be minimized.
[0022]
On the other hand, the plug-in device of the present invention can easily check the connection state between the connection portion in the device and the conductor in the housing and the connection state between the connection terminal in the device and another branching cable. Therefore, similarly to the bus duct of the present invention, an accident can be prevented beforehand, and even if an accident occurs, it can be minimized.
[Brief description of the drawings]
FIG. 1A is a plan view showing a state where a plug-in device of the present invention is attached to a bus duct of the present invention, and FIG. 1B is a front view thereof.
2A is a front view of the plug-in device of the present invention, and FIG. 2B is a side view thereof.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Bus duct 2 Plug-in apparatus 3 Plug-in hole part 4, 5, 6 Inspection window 10 Conductor 11 Housing 12 Ground terminal 20 Box case 21 Connecting part 22 Connection terminal 23 Nipping part 24 Conductive part 25 Breaker part 26 Switch 27 Mounting part 28 Screw 29 Fixing plate 30 Rubber plate 31 Insulated contact

Claims (2)

複数の板状の導体をハウジング内に収納保持するバスダクトであって、
前記ハウジングにプラグイン器具を取り付けるプラグインホール部と、
前記プラグインホール部と対向する位置に設けた点検窓とを有することを特徴とするバスダクト。A bus duct that stores and holds a plurality of plate-shaped conductors in a housing,
A plug-in hole for attaching a plug-in device to the housing,
A bus duct, comprising: an inspection window provided at a position facing the plug-in hole. 複数の板状の導体をハウジング内に収納保持するバスダクトに取り付けられて分岐をとるプラグイン器具であって、
器具内の電気的接続部が見えるところに点検窓を有することを特徴とするプラグイン器具。A plug-in device that is attached to a bus duct that stores and holds a plurality of plate-shaped conductors in a housing and takes a branch,
A plug-in device having an inspection window where an electrical connection in the device can be seen.
JP2003011495A 2003-01-20 2003-01-20 Bus duct and plug-in appliance Pending JP2004229358A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
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Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2003011495A JP2004229358A (en) 2003-01-20 2003-01-20 Bus duct and plug-in appliance

Publications (1)

Publication Number Publication Date
JP2004229358A true JP2004229358A (en) 2004-08-12

Family

ID=32900385

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2003011495A Pending JP2004229358A (en) 2003-01-20 2003-01-20 Bus duct and plug-in appliance

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Country Link
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Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006092913A (en) * 2004-09-24 2006-04-06 Nitto Electric Works Ltd Plug unit with current detector incorporated therein
JP2006179390A (en) * 2004-12-24 2006-07-06 Nitto Electric Works Ltd Plug-in apparatus
JP2007295742A (en) * 2006-04-26 2007-11-08 Kyodo Ky Tec Corp Diverging device for bus-duct
JP2008109786A (en) * 2006-10-26 2008-05-08 Kyodo Ky Tec Corp Bus-duct separator and separation structure
JP2008141909A (en) * 2006-12-05 2008-06-19 Kyodo Ky Tec Corp Branch unit and bus-duct system
JP2010119286A (en) * 2008-10-15 2010-05-27 Kyodo Ky Tec Corp Bus duct branching device, bus-duct branching structure, and assembling method thereof
JP2011041849A (en) * 2010-12-01 2011-03-03 Sammy Corp Game machine
JP2011097762A (en) * 2009-10-30 2011-05-12 Furukawa Electric Co Ltd:The Plug-in fitting
CN107147064A (en) * 2017-06-17 2017-09-08 镇江市长江机电设备厂有限公司 A kind of bus duct system of high stability
CN109494665A (en) * 2017-09-11 2019-03-19 郭文艺 A kind of novel jack box and the bus duct system using the jack box
JP2019514338A (en) * 2016-04-22 2019-05-30 リッタル ゲーエムベーハー ウント コー．カーゲーＲｉｔｔａｌ ＧｍｂＨ ＆ Ｃｏ．ＫＧ Device for busbar contact that is safe to touch

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4514124B2 (en) * 2004-09-24 2010-07-28 日東工業株式会社 Plug unit with built-in current detector
JP2006092913A (en) * 2004-09-24 2006-04-06 Nitto Electric Works Ltd Plug unit with current detector incorporated therein
JP2006179390A (en) * 2004-12-24 2006-07-06 Nitto Electric Works Ltd Plug-in apparatus
JP4518938B2 (en) * 2004-12-24 2010-08-04 日東工業株式会社 Plug-in equipment
JP2007295742A (en) * 2006-04-26 2007-11-08 Kyodo Ky Tec Corp Diverging device for bus-duct
JP2008109786A (en) * 2006-10-26 2008-05-08 Kyodo Ky Tec Corp Bus-duct separator and separation structure
JP2008141909A (en) * 2006-12-05 2008-06-19 Kyodo Ky Tec Corp Branch unit and bus-duct system
JP2010119286A (en) * 2008-10-15 2010-05-27 Kyodo Ky Tec Corp Bus duct branching device, bus-duct branching structure, and assembling method thereof
JP2011097762A (en) * 2009-10-30 2011-05-12 Furukawa Electric Co Ltd:The Plug-in fitting
JP2011041849A (en) * 2010-12-01 2011-03-03 Sammy Corp Game machine
JP2019514338A (en) * 2016-04-22 2019-05-30 リッタル ゲーエムベーハー ウント コー．カーゲーＲｉｔｔａｌ ＧｍｂＨ ＆ Ｃｏ．ＫＧ Device for busbar contact that is safe to touch
CN107147064A (en) * 2017-06-17 2017-09-08 镇江市长江机电设备厂有限公司 A kind of bus duct system of high stability
CN109494665A (en) * 2017-09-11 2019-03-19 郭文艺 A kind of novel jack box and the bus duct system using the jack box
CN109494665B (en) * 2017-09-11 2023-09-29 郭文艺 Novel jack box and bus duct system using jack box

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