JPS60225310A - Low inductance grounding wire - Google Patents
Low inductance grounding wireInfo
- Publication number
- JPS60225310A JPS60225310A JP8070384A JP8070384A JPS60225310A JP S60225310 A JPS60225310 A JP S60225310A JP 8070384 A JP8070384 A JP 8070384A JP 8070384 A JP8070384 A JP 8070384A JP S60225310 A JPS60225310 A JP S60225310A
- Authority
- JP
- Japan
- Prior art keywords
- grounding wire
- conductor
- inductance
- low
- low inductance
- 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
- Insulated Conductors (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】
本発明は電気設備、特に送配電線を保護するアレスタの
接地線に関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a grounding wire for an arrester that protects electrical equipment, particularly power transmission and distribution lines.
（発明の背景）
送配電線を誘導雷の侵入から保護するため通常アレスタ
が使用されているが、配電線等においてアレスタが電柱
上に設置されている場合には、柱上から大地へ接地をと
るための接地線が必要となる。この接地線の長さは１０
ｍ程度で、従来は通常のビニール絶縁電線が使用されて
いるが、急峻一なサージ電圧が侵入した場合には、その
インピーダンスが大きくなる（接地線のインダクタンス
分ωしてきく）ために、アレスタが動作しても侵入サー
ジを大地へ逃すことができず、配電系統へ過大なサージ
電圧が透過し、系統の保護ができない場合があり、低イ
ンダクタンスの接地線が要望されていた。(Background of the invention) Arresters are normally used to protect power transmission and distribution lines from intrusion of induced lightning, but when arresters are installed on utility poles in power distribution lines, etc., it is necessary to connect the grounding from the pole to the ground. You will need a grounding wire to connect it. The length of this ground wire is 10
Conventionally, ordinary vinyl insulated wires have been used, but when a sudden surge voltage enters, the impedance increases (increased by the inductance of the grounding wire), so the arrester Even if the system operates, the intruding surge cannot be released to the ground, and excessive surge voltage may pass through the power distribution system, making it impossible to protect the system.Therefore, a grounding wire with low inductance was required.
（発明の開示）
本発明は上述の問題点を低減した低インダクタンスの接
地線を提供するもので、素線絶縁導体が１多層状に配列
されており、各層の撚方向が交互に反対方向であること
を特徴とするものである。(Disclosure of the Invention) The present invention provides a low-inductance grounding wire that reduces the above-mentioned problems, in which strand insulated conductors are arranged in one multilayer, and the twisting direction of each layer is alternately opposite. It is characterized by certain things.
第１図は本発明に係る低インダクタンス接地線の実施例
の横断面図で、ポリ塩化ビニル、ポリエチレン等のプラ
スチック芯（１）の上に、軟銅線上にポリビニルホルマ
ール等の合成樹脂の焼付被膜等を施して絶縁した素線絶
縁導体（２ａ）（２ｂ）が撚り合されて２層に配列され
ている。しかして内層の撚合せ導体（２ａ）と外層の撚
合せ導体（２ｂ）の撚方向は反対方向に撚られており、
これによりインダクタンス分が低減される。又第１図の
撚線は２層構造となっているが、抵抗分を小さくするた
め多層構造としてもよい。なお図面において（３）はポ
リ塩化ビニル、ポリエチレン等の絶縁被覆層である。FIG. 1 is a cross-sectional view of an embodiment of the low-inductance grounding wire according to the present invention, in which a plastic core (1) made of polyvinyl chloride, polyethylene, etc. is coated with a baked coating of synthetic resin such as polyvinyl formal on an annealed copper wire. The strand insulated conductors (2a) and (2b), which have been insulated by the above-mentioned method, are twisted together and arranged in two layers. Therefore, the twisting directions of the inner layer twisted conductor (2a) and the outer layer twisted conductor (2b) are twisted in opposite directions,
This reduces the inductance. Further, although the twisted wire in FIG. 1 has a two-layer structure, it may have a multi-layer structure in order to reduce the resistance. In the drawings, (3) is an insulating coating layer made of polyvinyl chloride, polyethylene, or the like.
第２図は本発明に係る低インダクタンス接地線の他の実
施例の横断正面図で、プラスチック製の中空パイプ又は
プラスチック紐のスパイラル状体（＋１）の上に素線絶
縁導体（１２ａ）（１２ｂ）が２層に配列されている。FIG. 2 is a cross-sectional front view of another embodiment of the low-inductance grounding wire according to the present invention, in which bare wire insulated conductors (12a) (12b) are placed on a spiral-shaped body (+1) of a plastic hollow pipe or plastic string. ) are arranged in two layers.
この実施例では導体の断面形状は平型成形導体で、第１
図と同様に絶縁被膜が施されている。又第１図と同様に
内層導体（１２ａ）と外層導体（１２’ｂ ）の撚方向
は反対方向であり、勿論抵抗分を小さくするため多層構
造としてもよい。In this example, the cross-sectional shape of the conductor is a flat shaped conductor, and the first
An insulating coating is applied as shown in the figure. Further, as in FIG. 1, the inner layer conductor (12a) and the outer layer conductor (12'b) are twisted in opposite directions, and of course a multilayer structure may be used to reduce the resistance.
（発明の効果）
上述の低インダクタンス接地線によるときは、素線絶縁
導体が多層状に撚合されており、各層の撚方向が交互に
反対方向に構成されているため、自己イーンダクタンス
４＋カ低減され、サージ電圧の低減を可能とする効果を
有するものである。なお、素線絶縁導体として断面形状
が平型成形導体を用いるときは上述の自己インダクタン
ス分の低減効果を一層増大することができる。(Effect of the invention) When using the above-mentioned low-inductance grounding wire, the strand insulated conductors are twisted in a multilayered manner, and the twisting directions of each layer are alternately arranged in opposite directions, so that the self-inductance is 4 + This has the effect of making it possible to reduce the surge voltage. Note that when a molded conductor having a flat cross-sectional shape is used as the stranded insulated conductor, the above-mentioned effect of reducing self-inductance can be further increased.
第１図及び第２図はいずれも本発明に係る低インダクタ
ンス接地線の実施例の横断面図である。
１ プラスチック芯、２ａ１１２ａ・・・内層の素線絶
縁導体、２ｂ、１２ｂ・・・外層の素線絶縁導体、３・
絶縁被覆層。1 and 2 are both cross-sectional views of embodiments of low inductance grounding wires according to the present invention. 1 Plastic core, 2a112a... Inner layer insulated wire conductor, 2b, 12b... Outer layer insulated wire conductor, 3.
Insulating coating layer.
Claims (2)
撚方向が交互に反対方向であることを特徴とする低イン
ダクタンス接地線。(1) A low-inductance grounding wire characterized in that strand insulated conductors are arranged in a multilayered manner, and each layer is twisted in alternately opposite directions.
とを特徴とする特許請求の範囲第１項記載の低インダク
タンス接地線。(2) The low inductance grounding wire according to claim 1, wherein the cross-sectional shape of the stranded insulated conductor is a flat molded conductor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8070384A JPS60225310A (en) | 1984-04-20 | 1984-04-20 | Low inductance grounding wire |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8070384A JPS60225310A (en) | 1984-04-20 | 1984-04-20 | Low inductance grounding wire |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS60225310A true JPS60225310A (en) | 1985-11-09 |
Family
ID=13725690
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8070384A Pending JPS60225310A (en) | 1984-04-20 | 1984-04-20 | Low inductance grounding wire |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60225310A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2005073986A1 (en) * | 2004-01-29 | 2005-08-11 | Mitsubishi Cable Industries, Ltd. | Electric cable, its usage method, and its manufacturing method |
-
1984
- 1984-04-20 JP JP8070384A patent/JPS60225310A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2005073986A1 (en) * | 2004-01-29 | 2005-08-11 | Mitsubishi Cable Industries, Ltd. | Electric cable, its usage method, and its manufacturing method |
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