JP2002313511A - Ground electrode - Google Patents
Ground electrodeInfo
- Publication number
- JP2002313511A JP2002313511A JP2001115387A JP2001115387A JP2002313511A JP 2002313511 A JP2002313511 A JP 2002313511A JP 2001115387 A JP2001115387 A JP 2001115387A JP 2001115387 A JP2001115387 A JP 2001115387A JP 2002313511 A JP2002313511 A JP 2002313511A
- Authority
- JP
- Japan
- Prior art keywords
- sleeve
- wire
- bare
- core
- core wire
- 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.)
- Pending
Links
Landscapes
- Manufacturing Of Electrical Connectors (AREA)
- Processing Of Terminals (AREA)
- Cable Accessories (AREA)
Abstract
Description
【0001】[0001]
【発明の属する技術分野】本発明は、先端の絶縁被覆部
を除去した絶縁電線を掘削孔に埋設することにより、地
表部から一定深度までの間を除いた特定深度に接地電極
を接地させる接地電極に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a grounding method in which an insulated wire from which an insulating coating at a tip is removed is buried in a drilling hole to ground a ground electrode to a specific depth except for a certain depth from the ground surface. Electrodes.
【0002】[0002]
【従来の技術】接置電極の地表部を絶縁して特定深度の
部分のみを接地させることを目的として、絶縁電線の先
端の一定長の絶縁被覆を除去して心線を露出させた後、
その絶縁電線を掘削孔の特定深さに挿入し保持した状態
で掘削孔に充填材を注入して埋設する「接地電極の埋設
工法」は特開平10−55868号公報に示されている。2. Description of the Related Art In order to insulate the ground portion of a contact electrode and to ground only a portion at a specific depth, a predetermined length of insulation coating at the tip of an insulated wire is removed to expose a core wire.
Japanese Patent Application Laid-Open No. H10-55868 discloses a method of burying a ground electrode by injecting a filler into and burying the insulated wire while inserting and holding the insulated wire at a specific depth of the borehole.
【0003】図2はこのような従来例の説明図である。
図において、1は掘削孔であり、その内部に絶縁電線2
が電極材として挿入・埋設されている。絶縁電線2は、
掘削孔1に挿入する前に、先端の絶縁被覆3を剥ぎ取
り、心線4を露出させ、この心線4の先端に銅製の圧縮
形スリーブ5を介して裸電線7を接続し、圧縮形スリー
ブ5を絶縁被覆3に略当接させた状態で、図示しない圧
縮工具を用いて、圧縮形スリーブ5を圧縮して心線4と
裸電線7に固着させる。それにより、心線4内と裸電線
内に残っていた隙間は略圧縮されてなくなる。FIG. 2 is an explanatory view of such a conventional example.
In the figure, reference numeral 1 denotes a drill hole, in which an insulated wire 2 is provided.
Are inserted and buried as electrode materials. The insulated wire 2
Before insertion into the borehole 1, the insulating coating 3 at the tip is stripped to expose the core wire 4, and a bare wire 7 is connected to the tip of the core wire 4 via a copper compression sleeve 5 to compress the core. With the sleeve 5 substantially in contact with the insulating coating 3, the compression sleeve 5 is compressed using a compression tool (not shown) and fixed to the core wire 4 and the bare electric wire 7. Thereby, the gap remaining in the core wire 4 and the bare wire is substantially compressed and disappears.
【0004】次に、心線4と裸電線7との接続部の防水
性を増すために、圧縮形直線スリーブ5の下方の裸電線
7に更に圧縮形スリーブ8を取付け、圧縮し、この圧縮
された圧縮形スリーブ8の上部と絶縁被覆3との間に、
不透水性樹脂を塗布後絶縁テープ6を巻き付けて、両者
の当接部を覆い完全に密閉する。[0004] Next, in order to increase the waterproofness of the connection between the core wire 4 and the bare wire 7, a compression-type sleeve 8 is further attached to the bare wire 7 below the compression-type straight sleeve 5 and compressed. Between the upper portion of the compressed sleeve 8 and the insulating coating 3
After the application of the water-impermeable resin, the insulating tape 6 is wrapped around to cover the contact portions of the both and completely seal them.
【0005】その結果、絶縁電線2の心線4及び裸電線
7の部分は、流体の移動という点で外側の絶縁被覆3と
分離されたことになる。ここで、裸電線7の部分を二つ
折りにして、掘削孔1内に挿入し、圧縮形スリーブ5が
略所定の絶縁深さL1の位置となるように保持してから、
掘削孔1内に充填材を注入する。As a result, the core wire 4 and the bare wire 7 of the insulated wire 2 are separated from the outer insulating coating 3 in terms of fluid movement. Here, the portion of the bare electric wire 7 is folded in two, inserted into the excavation hole 1, and held so that the compression-type sleeve 5 is located at a position of a substantially predetermined insulation depth L1.
A filler is injected into the borehole 1.
【0006】[0006]
【発明が解決しようとする課題】然しながら、上記のよ
うな接地電極では電極となる裸電線と絶縁電線の心線と
が直接接触しているため、掘削孔1内の地下水位が季節
により大幅に変動したときの絶縁電線内への地下水浸入
を完全に防ぐことはできない欠点があった。However, in the above-described ground electrode, the bare wire serving as the electrode and the core wire of the insulated wire are in direct contact with each other. There was a drawback that it was not possible to completely prevent infiltration of groundwater into the insulated wire when it fluctuated.
【0007】本発明は上記の欠点を除くようにしたもの
である。The present invention has been made to eliminate the above disadvantages.
【0008】[0008]
【課題を解決するための手段】本発明の設置電極は、絶
縁電線とその先端部に形成した絶縁被覆を有しない心線
部分と、上記心線の端部にその一端をスリーブを介して
接続した裸電線と、上記絶縁被覆の端部と上記スリーブ
に巻き付けた絶縁テープとより成り、上記スリーブが上
記心線の端部を挿入する非貫通孔と、上記裸電線の一端
を挿入する非貫通孔とを有することを特徴とする。According to the present invention, there is provided an installation electrode in which an insulated wire and a core portion having no insulating coating formed at the end thereof are connected to one end of the core via a sleeve. A non-through hole for inserting an end of the core wire, and a non-through hole for inserting one end of the bare wire. And a hole.
【0009】[0009]
【発明の実施の形態】以下図面によって本発明の実施例
を説明する。Embodiments of the present invention will be described below with reference to the drawings.
【0010】図1は本発明の実施例を示し、図2と同一
部分は同一符号を付しその説明は省略する。FIG. 1 shows an embodiment of the present invention. The same parts as those in FIG.
【0011】本発明においては、絶縁電線2の先端部に
形成した絶縁被覆3を有しない心線4の端部に裸電線7
の一端をスリーブ9を介して接続し、上記絶縁被覆3の
端部と上記スリーブ9に絶縁テープ6を巻き付ける。な
お、上記心線4の端部は上記スリーブ9の一端に形成し
た非貫通孔10に挿入し、上記裸電線7の一端は上記ス
リーブ9の他端に形成した非貫通孔11に挿入し、心線
4の端部と裸電線7の端部間がスリーブ9の肉厚部12
によって完全に水密に遮断されるようにする。In the present invention, the bare wire 7 having no insulating coating 3 formed on the tip of the insulated wire 2 is attached to the end of the bare wire 7.
Is connected via a sleeve 9, and an insulating tape 6 is wound around the end of the insulating coating 3 and the sleeve 9. In addition, one end of the core wire 4 is inserted into a non-through hole 10 formed at one end of the sleeve 9, and one end of the bare electric wire 7 is inserted into a non-through hole 11 formed at the other end of the sleeve 9. A thick portion 12 of the sleeve 9 is formed between the end of the core wire 4 and the end of the bare wire 7.
Completely watertight.
【0012】また、上記絶縁被覆3の端部と上記スリー
ブ9の間に不透水性樹脂材を塗布した後絶縁テープ6を
巻き付けて、絶縁被覆3とスリーブ9との当接部を完全
に密閉せしめる。After applying a water-impermeable resin material between the end of the insulating coating 3 and the sleeve 9, the insulating tape 6 is wrapped to completely seal the contact portion between the insulating coating 3 and the sleeve 9. Let me know.
【0013】[0013]
【発明の効果】本発明の接地電極は、上記のような構成
であるから、心線4に対する地下水の浸水が確実に遮ら
れて、寿命が大幅に延びるようになる大きな利益があ
る。Since the ground electrode of the present invention has the above-described structure, there is a great advantage that the infiltration of the groundwater into the core wire 4 is surely blocked and the life is greatly extended.
【図1】本発明の実施形態を示す説明図である。FIG. 1 is an explanatory diagram showing an embodiment of the present invention.
【図2】従来の実施形態を示す説明図である。FIG. 2 is an explanatory diagram showing a conventional embodiment.
1 掘削孔 2 絶縁電線 3 絶縁被覆 4 心線 5 圧縮形スリーブ 6 絶縁テープ 7 裸電線 8 圧縮形スリーブ 9 スリーブ 10 非貫通孔 11 非貫通孔 12 肉厚部 DESCRIPTION OF SYMBOLS 1 Drilling hole 2 Insulated wire 3 Insulation coating 4 Core wire 5 Compression type sleeve 6 Insulation tape 7 Bare wire 8 Compression type sleeve 9 Sleeve 10 Non-through hole 11 Non-through hole 12 Thick part
Claims (1)
覆を有しない心線部分と、上記心線の端部にその一端を
スリーブを介して接続した裸電線と、上記絶縁被覆の端
部と上記スリーブに巻き付けた絶縁テープとより成り、
上記スリーブが上記心線の端部を挿入する非貫通孔と、
上記裸電線の一端を挿入する非貫通孔とを有することを
特徴とする接地電極。1. An insulated wire and a core portion having no insulating coating formed at the tip thereof, a bare wire having one end connected to an end of the core via a sleeve, and an end of the insulating coating. And an insulating tape wound around the sleeve,
A non-through hole in which the sleeve inserts the end of the core wire,
A ground electrode comprising a non-through hole into which one end of the bare electric wire is inserted.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2001115387A JP2002313511A (en) | 2001-04-13 | 2001-04-13 | Ground electrode |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2001115387A JP2002313511A (en) | 2001-04-13 | 2001-04-13 | Ground electrode |
Publications (1)
Publication Number | Publication Date |
---|---|
JP2002313511A true JP2002313511A (en) | 2002-10-25 |
Family
ID=18966295
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2001115387A Pending JP2002313511A (en) | 2001-04-13 | 2001-04-13 | Ground electrode |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP2002313511A (en) |
Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5769161U (en) * | 1980-10-15 | 1982-04-26 | ||
JPS57158079U (en) * | 1981-03-25 | 1982-10-04 | ||
JPH0218877A (en) * | 1988-07-05 | 1990-01-23 | Hitachi Cable Ltd | Cable conductor connecting tube and associate method of connecting cable conductor |
JPH02117664U (en) * | 1989-03-08 | 1990-09-20 | ||
JPH0324266U (en) * | 1988-09-07 | 1991-03-13 | ||
JPH07153502A (en) * | 1993-08-17 | 1995-06-16 | Whitaker Corp:The | Crimp terminal assembly |
JPH1055868A (en) * | 1996-08-09 | 1998-02-24 | Masami Fujii | Construction method for embedding grounding electrode |
JPH11233166A (en) * | 1998-02-18 | 1999-08-27 | Tokyo Electric Power Co Inc:The | Connecting sleeve |
-
2001
- 2001-04-13 JP JP2001115387A patent/JP2002313511A/en active Pending
Patent Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5769161U (en) * | 1980-10-15 | 1982-04-26 | ||
JPS57158079U (en) * | 1981-03-25 | 1982-10-04 | ||
JPH0218877A (en) * | 1988-07-05 | 1990-01-23 | Hitachi Cable Ltd | Cable conductor connecting tube and associate method of connecting cable conductor |
JPH0324266U (en) * | 1988-09-07 | 1991-03-13 | ||
JPH02117664U (en) * | 1989-03-08 | 1990-09-20 | ||
JPH07153502A (en) * | 1993-08-17 | 1995-06-16 | Whitaker Corp:The | Crimp terminal assembly |
JPH1055868A (en) * | 1996-08-09 | 1998-02-24 | Masami Fujii | Construction method for embedding grounding electrode |
JPH11233166A (en) * | 1998-02-18 | 1999-08-27 | Tokyo Electric Power Co Inc:The | Connecting sleeve |
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