JPH02189812A - Snow melting conductor - Google Patents
Snow melting conductorInfo
- Publication number
- JPH02189812A JPH02189812A JP892789A JP892789A JPH02189812A JP H02189812 A JPH02189812 A JP H02189812A JP 892789 A JP892789 A JP 892789A JP 892789 A JP892789 A JP 892789A JP H02189812 A JPH02189812 A JP H02189812A
- Authority
- JP
- Japan
- Prior art keywords
- snow
- wire
- melting
- wires
- conductor
- 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
- 238000002844 melting Methods 0.000 title claims abstract description 33
- 230000008018 melting Effects 0.000 title claims abstract description 23
- 239000004020 conductor Substances 0.000 title abstract 7
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 21
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 21
- 230000035699 permeability Effects 0.000 claims abstract description 14
- 229910000831 Steel Inorganic materials 0.000 abstract description 13
- 239000010959 steel Substances 0.000 abstract description 13
- 239000004411 aluminium Substances 0.000 abstract 1
- 238000000034 method Methods 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 229910052748 manganese Inorganic materials 0.000 description 2
- 239000011572 manganese Substances 0.000 description 2
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は架空電線上への着雪を防止した融雪電線に関す
る。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a snow-melting electric wire that prevents snow from accumulating on overhead electric wires.
従来、架空電線上への着雪を防止する方法として該架空
電線上に難着雪リングを取り付＆Ｊたり、あるいは別電
源から供給される電流により加熱する加熱線を巻き付け
る方法があった。Conventionally, there have been methods for preventing snow from accumulating on overhead electric wires, such as attaching anti-snow rings to the overhead electric wires, or wrapping heating wires that are heated by electric current supplied from a separate power source.
しかしながら、難着雪リングを取付ける方法は架空電線
上への筒雪発達を防止できるが、該架空電線上に載った
雪が落下して、地上のビニルハウス、温室または自動車
等に損傷を与えることがある。また加熱線を巻き付ける
方法では、別電源が必要であり、また電線の重量が大き
くなるとともに等価外径が大きくなり、鉄塔に加わる過
電が大きくなって該鉄塔の補強が必要になるといった欠
点がある。However, although the method of installing anti-snow rings can prevent snow buildup on overhead power lines, the snow on the overhead power lines may fall and cause damage to greenhouses, greenhouses, cars, etc. on the ground. be. In addition, the method of wrapping the heating wire requires a separate power source, and as the weight of the wire increases, the equivalent outer diameter also increases, which increases the overcurrent applied to the steel tower, which requires reinforcement of the tower. be.
本発明の目的は別電源を必要とせずに架空電線」二の着
雪を融雪することのできる融雪電線を提供することにあ
る。SUMMARY OF THE INVENTION An object of the present invention is to provide a snow-melting electric wire that can melt snow accumulated on an overhead electric wire without requiring a separate power source.
本発明は上記の目的を達成するためになされたもので、
最外層にアルミ素線と融雪素線とを撚り合せてなり、前
記融雪素線は比透磁率がアルミ素線と同程度であると共
に電気抵抗がアルミ素線より大きいことを特徴とするも
のである。The present invention has been made to achieve the above objects,
The outermost layer is made by twisting an aluminum wire and a snow melting wire, and the snow melting wire is characterized by having a relative magnetic permeability comparable to that of the aluminum wire and an electrical resistance larger than that of the aluminum wire. be.
（実施例〕
以下本発明の実施例を第１図及び第２図に基づいて詳細
に説明する。第１図は本発明の融雪電線の−・実施例を
示す断面図であり、最外層にアルミ素線１と融雪素線２
とを撚り合せたもので、融雪素線２として比透磁率がア
ルミ素線１の比透磁率と同程度即ち１程度であり、かつ
、アルミ素線１より電気抵抗の大きい鋼索線を撚り込ん
でなるものである。(Example) An example of the present invention will be explained in detail below based on Fig. 1 and Fig. 2. Fig. 1 is a sectional view showing an example of the snow melting electric wire of the present invention. Aluminum wire 1 and snow melting wire 2
The snow melting wires 2 are made by twisting steel cable wires whose relative magnetic permeability is the same as that of the aluminum wires 1, that is, about 1, and whose electrical resistance is higher than that of the aluminum wires 1. It consists of
この融雪電線に交流電流を流すと、各素線の電流分布は
各素線のインピーダンスによって決定され、各素線のイ
ンピーダンスはほとんどインダクタンス成分によって占
められており、インダクタンスは比透磁率によって決定
される。従ってアルミ素線１の比透磁率は】であること
から融雪電線２として比透磁率がほぼ１である鋼索線を
用いると、この鋼索線にはアルミ素線Ｉと同程度の電流
が流れることになる。鋼索線の電気抵抗はアルミ系素線
グの電気抵抗よりもはるかに大きいため、該薯素線の発
熱量が大きくなり周囲の着雪を融雪することが可能にな
る。鋼索線としてはアルミ被覆または亜鉛メツキを施し
た高マンガン非磁性鋼等が使用できる。なお融雪素線２
として通常の比透磁率１００程度の鉄を用いると融雪素
線２のインダクタンスが非常に大きくなるため融雪素線
２にはほとんど電流が流れず従って発熱しない。第２図
は本発明の他の実施例を示すもので、鋼心３を中心に入
れ最外層にアルミ素線１と融雪素線２とを撚り合せたも
のであり、融雪素綿２としては前記実施例と同様に高マ
ンガン非磁性鋼等が使用される。この融雪電線も」二記
と同様に融雪素線２が発熱して着雪を溶かずことができ
る。融雪素線２の月質は比透磁率がアルミ素線と同程度
であると共に電気抵抗がアルミ素線より大きければ良（
、特に限定されるものではない。When an alternating current is passed through this snow melting wire, the current distribution in each wire is determined by the impedance of each wire, the impedance of each wire is mostly occupied by the inductance component, and the inductance is determined by the relative permeability. . Therefore, the relative magnetic permeability of the aluminum wire 1 is ], so if a steel cable wire with a relative permeability of approximately 1 is used as the snow melting wire 2, the same current as that of the aluminum wire I will flow through this steel cable wire. become. Since the electrical resistance of the steel cable is much higher than that of the aluminum strand, the amount of heat generated by the strand becomes large, making it possible to melt surrounding snow. As the steel cable, aluminum-coated or galvanized high-manganese nonmagnetic steel can be used. Furthermore, snow melting wire 2
If normal iron having a relative magnetic permeability of about 100 is used as the snow melting wire 2, the inductance of the snow melting wire 2 will be very large, so almost no current will flow through the snow melting wire 2, and therefore no heat will be generated. FIG. 2 shows another embodiment of the present invention, in which a steel core 3 is placed in the center and aluminum strands 1 and snow melting strands 2 are twisted together in the outermost layer. High manganese nonmagnetic steel or the like is used as in the previous embodiment. In this snow melting electric wire, snow melting wire 2 generates heat and can melt snow as in the case of Section 2. The lunar quality of snow melting wire 2 should have a relative magnetic permeability similar to that of the aluminum wire and an electrical resistance greater than that of the aluminum wire (
, but is not particularly limited.
〔発明の効果］
以」−に説明したように、本発明の融雪電線は、１＆外
層にアルミ素線と融雪素線とを撚り合せてなり、前記融
雪素線は比透磁率がアルミ素線と同程度であると共に電
気抵抗がアルミ素線より大きいことを特徴としているた
め、別電源を必要とせずに該融雪電線−にの着雪を融雪
することがてきる。[Effects of the Invention] As explained below, the snow-melting electric wire of the present invention is formed by twisting an aluminum wire and a snow-melting wire in the outer layer, and the snow-melting wire has a relative magnetic permeability equal to that of the aluminum wire. Since the electrical resistance is similar to that of the aluminum wire and the electrical resistance is larger than that of the aluminum wire, it is possible to melt snow on the snow melting wire without requiring a separate power source.
第１図は本発明の融雪電線の一実施例を示す断面図、第
２図は本発明の他の実施例を示す断面図である。FIG. 1 is a sectional view showing one embodiment of the snow melting electric wire of the present invention, and FIG. 2 is a sectional view showing another embodiment of the present invention.
Claims (1)
記融雪素線は比透磁率がアルミ素線と同程度であると共
に電気抵抗がアルミ素線より大きいことを特徴とする融
雪電線。A snow melting electric wire comprising an aluminum wire and a snow melting wire twisted together in the outermost layer, wherein the snow melting wire has a relative magnetic permeability comparable to that of the aluminum wire and an electrical resistance larger than that of the aluminum wire. .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP892789A JPH02189812A (en) | 1989-01-18 | 1989-01-18 | Snow melting conductor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP892789A JPH02189812A (en) | 1989-01-18 | 1989-01-18 | Snow melting conductor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH02189812A true JPH02189812A (en) | 1990-07-25 |
Family
ID=11706295
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP892789A Pending JPH02189812A (en) | 1989-01-18 | 1989-01-18 | Snow melting conductor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH02189812A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04102118U (en) * | 1991-02-15 | 1992-09-03 | 古河電気工業株式会社 | overhead power lines |
| JPWO2005024851A1 (en) * | 2003-09-02 | 2006-11-16 | 住友電工スチールワイヤー株式会社 | Covered wire and automotive wire harness |
| JP2006339040A (en) * | 2005-06-02 | 2006-12-14 | Nisshin Steel Co Ltd | Composite electric cable |
-
1989
- 1989-01-18 JP JP892789A patent/JPH02189812A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04102118U (en) * | 1991-02-15 | 1992-09-03 | 古河電気工業株式会社 | overhead power lines |
| JPWO2005024851A1 (en) * | 2003-09-02 | 2006-11-16 | 住友電工スチールワイヤー株式会社 | Covered wire and automotive wire harness |
| JP4557887B2 (en) * | 2003-09-02 | 2010-10-06 | 住友電工スチールワイヤー株式会社 | Covered wire and automotive wire harness |
| JP2006339040A (en) * | 2005-06-02 | 2006-12-14 | Nisshin Steel Co Ltd | Composite electric cable |
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