JP2001291429A - Overhead power line and optical fiber composite overhead earth-wire - Google Patents
Overhead power line and optical fiber composite overhead earth-wireInfo
- Publication number
- JP2001291429A JP2001291429A JP2000106672A JP2000106672A JP2001291429A JP 2001291429 A JP2001291429 A JP 2001291429A JP 2000106672 A JP2000106672 A JP 2000106672A JP 2000106672 A JP2000106672 A JP 2000106672A JP 2001291429 A JP2001291429 A JP 2001291429A
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- Prior art keywords
- aluminum
- fiber composite
- carbon fiber
- wire
- overhead
- 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.)
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Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、炭素繊維を抗張力
体に用いた架空送電線及び光ファイバ複合架空地線に関
するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an overhead power transmission line and an optical fiber composite overhead ground wire using carbon fiber as a tensile strength member.
【０００２】[0002]
【従来の技術】従来から、炭素繊維の集合体を中心抗張
力体とし、その外周にアルミ素線を撚り合わせた架空送
電線は公知である（特開平３−７４００８号公報、特開
平４−３０８６１０号公報）。2. Description of the Related Art Conventionally, overhead transmission lines in which an aggregate of carbon fibers is used as a central tensile member and an aluminum wire is twisted around its periphery are known (JP-A-3-74008, JP-A-4-308610). No.).
【０００３】[0003]
【発明が解決しようとする課題】しかし従来のこの種の
架空送電線は、中心抗張力体に炭素繊維を用いることに
より架空送電線の温度が上昇したときの弛度の増大を防
ぐことに主眼がおかれ、小径化という点では十分な考慮
がなされていない。However, this type of overhead power transmission line of the prior art is mainly focused on preventing the sag when the temperature of the overhead power transmission line is increased by using carbon fiber for the central tensile strength member. After all, sufficient consideration has not been given to reducing the diameter.
【０００４】したがって本発明の目的は、炭素繊維を抗
張力体に用いた架空送電線及び光ファイバ複合架空地線
を小径化することにある。Accordingly, an object of the present invention is to reduce the diameter of an overhead transmission line and an optical fiber composite overhead ground wire using carbon fiber as a tensile strength member.
【０００５】[0005]
【課題を解決するための手段】この目的を達成するた
め、本発明に係る架空送電線は、セグメント形の炭素繊
維複合アルミ素線又はアルミ被覆炭素繊維複合アルミ素
線を断面円形に撚り合わせたものを中心抗張力体とし、
この中心抗張力体の外周にアルミ素線を撚り合わせたこ
とを特徴とするものである。In order to achieve this object, an overhead transmission line according to the present invention comprises a segment-shaped carbon fiber composite aluminum wire or an aluminum-coated carbon fiber composite aluminum wire twisted in a circular cross section. What is the central tensile strength body,
An aluminum wire is twisted around the outer periphery of the central tensile strength member.
【０００６】このようにすると中心抗張力体の外径を小
さくできるため、架空送電線全体の外径を小さくでき
る。アルミ素線は、断面円形でもセグメント形でもよい
が、セグメント形の方が架空送電線の小径化には効果的
である。なおこの明細書でいう「アルミ」とは、アルミ
ニウムだけでなく、アルミニウム合金をも含むものとす
る。[0006] By doing so, the outer diameter of the central tensile strength member can be reduced, so that the outer diameter of the entire overhead power transmission line can be reduced. The aluminum wire may have a circular cross section or a segment shape, but the segment shape is more effective for reducing the diameter of the overhead transmission line. In this specification, “aluminum” includes not only aluminum but also aluminum alloy.
【０００７】また本発明の架空送電線においては、中心
抗張力体とアルミ素線撚り合わせ層の間に防食グリース
を介在させることが好ましい。これは、炭素繊維複合ア
ルミ素線に降雨などにより水が付着すると、アルミが炭
素に侵され、腐食するおそれがあるので、炭素繊維複合
アルミ素線に水が付着しないようにして、腐食を防止す
るためである。Further, in the overhead transmission line of the present invention, it is preferable that anticorrosive grease is interposed between the central tensile strength member and the aluminum strand twisted layer. This is because if water adheres to the carbon fiber composite aluminum wire due to rainfall, etc., the aluminum may be corroded and corroded, so that water is prevented from adhering to the carbon fiber composite aluminum wire to prevent corrosion. To do that.
【０００８】また、本発明に係る光ファイバ複合架空地
線は、光ファイバを内臓したパイプの外周にセグメント
形の炭素繊維複合アルミ素線又はアルミ被覆炭素繊維複
合アルミ素線を断面円形に撚り合わせたことを特徴とす
るものである。このような構成にすると、光ファイバ複
合架空地線を小径化できると共に、軽量化できる。The optical fiber composite overhead ground wire according to the present invention is obtained by twisting a segment-shaped carbon fiber composite aluminum wire or an aluminum-coated carbon fiber composite aluminum wire around an outer circumference of a pipe containing an optical fiber in a circular cross section. It is characterized by having. With this configuration, the diameter of the optical fiber composite overhead ground wire can be reduced, and the weight can be reduced.
【０００９】[0009]
【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。 〔実施形態１〕図１は本発明に係る架空送電線の一実施
形態を示す。この架空送電線は、断面円形の炭素繊維複
合アルミ素線１ａのまわりにセグメント形の炭素繊維複
合アルミ素線１ｂを複数本、断面円形に撚り合わせたも
のを中心抗張力体２とし、この中心抗張力体２の外周に
断面円形のアルミ素線３を撚り合わせたものである。Embodiments of the present invention will be described below in detail with reference to the drawings. [Embodiment 1] FIG. 1 shows an embodiment of an overhead transmission line according to the present invention. This overhead transmission line is formed by twisting a plurality of segment-shaped carbon fiber composite aluminum wires 1b around a carbon fiber composite aluminum wire 1a having a circular cross section into a circular cross section to form a central tensile strength member 2. An aluminum wire 3 having a circular cross section is twisted around the outer periphery of the body 2.
【００１０】炭素繊維複合アルミ素線１ａ、１ｂは、線
状のアルミ母材の中に多数の炭素繊維が長手方向に埋め
込まれている形態のものである。このような炭素繊維複
合アルミ素線１ａ、１ｂは、炭素繊維の束を溶融アルミ
の中に通し、炭素繊維の間に溶融アルミを充填した後、
溶融アルミから引き上げるときに穴形が断面円形又はセ
グメント形のダイスに通してアルミを固化させることに
より製造することができる。The carbon fiber composite aluminum wires 1a and 1b are of a form in which a number of carbon fibers are embedded in a longitudinal direction in a linear aluminum base material. Such carbon fiber composite aluminum wires 1a and 1b pass a bundle of carbon fibers through molten aluminum and fill the space between the carbon fibers with molten aluminum.
It can be manufactured by solidifying aluminum by passing it through a die having a circular or segmented hole shape when it is pulled up from molten aluminum.
【００１１】この架空送電線は、中心抗張力体が炭素繊
維複合アルミ素線の撚線で構成されているため、中心抗
張力体がインバ線の撚線で構成されている通常の超耐熱
撚線（ＺＴＡＣＩＲ、ＸＴＡＣＩＲ）より軽量であり、
架線張力を低くできる。また中心抗張力体の線膨張係数
が小さいため、通電により高温になったときの弛度増加
を低く抑えることができる。さらにセグメント形の炭素
繊維複合アルミ素線を撚り合わせているため、中心抗張
力体の占積率が高く、外径が小さなり、したがって架空
送電線の外径を小さくできることから、風圧荷重、着氷
雪荷重を小さくできる。以上のことから、架空送電線の
鉄塔強度を低くすることができ、架空送電線路の建設コ
ストを低減できる。In this overhead transmission line, since the central tensile strength member is constituted by a stranded wire of a carbon fiber composite aluminum element wire, the ordinary super heat resistant stranded wire (in which the central tensile strength member is constituted by a stranded invar wire). ZTACIR, XTACIR)
The overhead wire tension can be reduced. Also, since the coefficient of linear expansion of the central tensile member is small, the increase in the sag when the temperature becomes high due to energization can be suppressed low. Furthermore, since the carbon fiber composite aluminum strand of the segment type is twisted, the space factor of the central tensile strength member is high and the outside diameter is small, so the outside diameter of the overhead power transmission line can be made small. Load can be reduced. From the above, the tower strength of the overhead transmission line can be reduced, and the construction cost of the overhead transmission line can be reduced.
【００１２】〔実施形態２〕図２は本発明に係る架空送
電線の他の実施形態を示す。この架空送電線は、実施形
態１と同様に構成された中心抗張力体２と、その上のア
ルミ素線３の撚り合わせ層との間に防食グリース４を介
在させたものである。[Embodiment 2] FIG. 2 shows another embodiment of an overhead transmission line according to the present invention. In this overhead transmission line, the anticorrosive grease 4 is interposed between the central tensile strength member 2 configured in the same manner as in the first embodiment and the twisted layer of the aluminum wires 3 thereon.
【００１３】炭素繊維複合アルミ素線１ａ、１ｂは、降
雨などにより水が付着すると、アルミが炭素に侵され、
腐食するおそれがあるが、上記のように防食グリース４
を介在させると、炭素繊維複合アルミ素線１ａ、１ｂに
水が付着するのを防止でき、したがって実施形態１の架
空送電線より耐食性を高めることができる。それ以外は
実施形態１と同様である。上記のような架空送電線を製
造するには、中心抗張力体２の外周に防食グリース４を
塗布してから、アルミ素線３を撚り合わせればよい。When water adheres to the carbon fiber composite aluminum wires 1a and 1b due to rainfall or the like, aluminum is attacked by carbon,
Corrosion-resistant grease 4
Can prevent water from adhering to the carbon fiber composite aluminum wires 1a and 1b, and therefore can improve corrosion resistance more than the overhead transmission line of the first embodiment. Other than that is the same as the first embodiment. In order to manufacture the overhead power transmission line as described above, an anticorrosive grease 4 is applied to the outer periphery of the central tensile strength member 2 and then the aluminum wires 3 are twisted.
【００１４】〔実施形態３〕図３は本発明に係る架空送
電線のさらに他の実施形態を示す。この架空送電線は、
断面円形のアルミ被覆炭素繊維複合アルミ素線５ａのま
わりにセグメント形のアルミ被覆炭素繊維複合アルミ素
線５ｂを複数本、断面円形に撚り合わせたものを中心抗
張力体２とし、この中心抗張力体２の外周にアルミ素線
３を撚り合わせたものである。[Embodiment 3] FIG. 3 shows still another embodiment of an overhead transmission line according to the present invention. This overhead transmission line
A plurality of segment-shaped aluminum-coated carbon fiber composite aluminum wires 5b, each of which is twisted in a circular cross-section, around an aluminum-coated carbon fiber composite aluminum wire 5a having a circular cross section, are defined as a central tensile strength member 2. The aluminum wire 3 is twisted around the outer periphery of the wire.
【００１５】このように中心抗張力体２に、アルミ被覆
６を有する炭素繊維複合アルミ素線５ａ、５ｂを使用す
ると、炭素繊維とアルミの界面に水が付着するのを防止
できるため、実施形態１の架空送電線より耐食性を高め
ることができる。それ以外は実施形態１と同様である。When the carbon fiber composite aluminum wires 5a and 5b having the aluminum coating 6 are used for the center tensile member 2, water can be prevented from adhering to the interface between the carbon fiber and aluminum. Corrosion resistance can be higher than that of overhead transmission lines. Other than that is the same as the first embodiment.
【００１６】アルミ被覆炭素繊維複合アルミ素線５ａ、
５ｂを製造する方法としては、(1)実施形態１と同様に
して製造した被覆のない炭素繊維複合アルミ素線の外周
にコンフォーム法によりアルミ被覆を一体に形成する方
法や、(2) 実施形態１と同様にして製造した被覆のない
炭素繊維複合アルミ素線をアルミ溶湯に浸漬して、表面
にアルミ被覆を付着させる方法などがある。いずれにし
ても、アルミ被覆６と炭素繊維複合アルミ素線のアルミ
母材とは金属学的に一体化されていることが、アルミ被
覆炭素繊維複合アルミ素線５ａ、５ｂの機械的強度を高
め、長期信頼性を高める上で、好ましい。An aluminum-coated carbon fiber composite aluminum wire 5a,
Examples of the method for manufacturing 5b include: (1) a method in which an aluminum coating is integrally formed on the outer periphery of an uncoated carbon fiber composite aluminum element wire manufactured in the same manner as in Embodiment 1 by a conforming method; There is a method in which an uncoated carbon fiber composite aluminum wire manufactured in the same manner as in Embodiment 1 is immersed in a molten aluminum to adhere an aluminum coating to the surface. In any case, the fact that the aluminum coating 6 and the aluminum base material of the carbon fiber composite aluminum strand are metallurgically integrated increases the mechanical strength of the aluminum coating carbon fiber composite aluminum strands 5a and 5b. It is preferable in improving long-term reliability.
【００１７】なお、アルミ素線３の代わりにアルミ被覆
炭素繊維複合アルミ素線５ａ、５ｂを用いて、あるいは
その両者を用いて、架空送電線の素線をすべてアルミ被
覆炭素繊維複合アルミ素線で構成するようにすると、よ
り機械的強度を高め、長期信頼性を高めることができ、
好ましい。By using the aluminum-coated carbon fiber composite aluminum wires 5a and 5b or both of them instead of the aluminum wires 3, all the wires of the overhead transmission line are converted to aluminum-coated carbon fiber composite aluminum wires. By configuring with, the mechanical strength can be further increased and long-term reliability can be increased,
preferable.
【００１８】〔実施形態４〕図４は本発明に係る架空送
電線のさらに他の実施形態を示す。この架空送電線は、
実施形態３と同様に構成された中心抗張力体２と、その
上のアルミ素線３の撚り合わせ層との間に防食グリース
４を介在させたものである。アルミ被覆炭素繊維複合ア
ルミ素線５ａ、５ｂはアルミ被覆を有するため、十分な
耐食性を有しているが、アルミ被覆にピンポール等が存
在する場合もあり得るので、上記のように防食グリース
４を介在させておけば、耐食性をより確実なものとする
ことができる。それ以外は実施形態１と同様である。[Embodiment 4] FIG. 4 shows still another embodiment of an overhead transmission line according to the present invention. This overhead transmission line
The anticorrosion grease 4 is interposed between the central tensile strength member 2 configured in the same manner as in the third embodiment and the twisted layer of the aluminum wires 3 thereon. The aluminum-coated carbon fiber composite aluminum wires 5a and 5b have sufficient corrosion resistance because they have an aluminum coating. However, since there may be a case where a pin pole or the like exists in the aluminum coating, the anticorrosive grease 4 is used as described above. If it is interposed, the corrosion resistance can be made more reliable. Other than that is the same as the first embodiment.
【００１９】〔実施形態５〕図５は本発明に係る架空送
電線のさらに他の実施形態を示す。この架空送電線は、
実施形態３と同様に構成された中心抗張力体２の外周
に、セグメント形のアルミ素線７を撚り合わせたもので
ある。このようにすると、実施形態１〜４の架空送電線
よりさらに外径の小さい架空送電線を得ることができ
る。それ以外は実施形態１〜４と同様である。[Embodiment 5] FIG. 5 shows still another embodiment of the overhead transmission line according to the present invention. This overhead transmission line
A segment-shaped aluminum element wire 7 is twisted around the outer periphery of a central tensile strength member 2 configured in the same manner as in the third embodiment. By doing so, it is possible to obtain an overhead transmission line having a smaller outer diameter than the overhead transmission lines of Embodiments 1 to 4. Other than that is the same as the first to fourth embodiments.
【００２０】〔実施形態６〕図６は本発明に係る光ファ
イバ複合架空地線の一実施形態を示す。この光ファイバ
複合架空地線は、溝付きスペーサ８の溝に光ファイバ心
線９を収納し、その外周にアルミパイプ10を被せたもの
を中心ユニット11とし、この中心ユニット11の外周にセ
グメント形のアルミ被覆炭素繊維複合アルミ素線５ｂを
複数本、断面円形に撚り合わせたものである。アルミ被
覆炭素繊維複合アルミ素線５ｂの撚り合わせ層の外周
に、さらにアルミ素線を撚り合わせる場合もある。[Embodiment 6] FIG. 6 shows an embodiment of an optical fiber composite overhead ground wire according to the present invention. This optical fiber composite ground wire has a central unit 11 in which an optical fiber core wire 9 is housed in a groove of a grooved spacer 8 and an outer periphery thereof is covered with an aluminum pipe 10. Of the aluminum-coated carbon fiber composite aluminum strands 5b are twisted in a circular cross section. An aluminum wire may be further twisted around the outer periphery of the twisted layer of the aluminum-coated carbon fiber composite aluminum wire 5b.
【００２１】アルミ被覆炭素繊維複合アルミ素線５ｂは
実施形態３で用いたものと同じであり、符号６がアルミ
被覆である。このアルミ被覆炭素繊維複合アルミ素線５
ｂは架空地線の抗張力体と導電体を兼ねるものである。The aluminum-coated carbon fiber composite aluminum wire 5b is the same as that used in the third embodiment, and reference numeral 6 denotes an aluminum coating. This aluminum coated carbon fiber composite aluminum wire 5
b serves as both a tensile strength member and a conductor of the overhead ground wire.
【００２２】この光ファイバ複合架空地線は、抗張力体
兼導電体の層がアルミ被覆炭素繊維複合アルミ素線で構
成されているため、同層がアルミ被覆鋼線で構成されて
いる通常の光ファイバ複合架空地線より軽量であり、架
線張力を低くできる。またアルミ被覆炭素繊維複合アル
ミ素線の線膨張係数が小さいため、雷撃電流等により架
空地線が高温になっても弛度増加を低く抑えることがで
き、光ファイバをより確実に保護できる。さらにセグメ
ント形のアルミ被覆炭素繊維複合アルミ素線を撚り合わ
せているため、架空地線の外径を小さくでき、風圧荷
重、着氷雪荷重を小さくできる。In this optical fiber composite overhead ground wire, since the layer of the strength member and the conductor is made of aluminum-coated carbon fiber composite aluminum wire, the same layer is made of aluminum-coated steel wire. Lighter than fiber composite overhead ground wire and lower overhead wire tension. Further, since the coefficient of linear expansion of the aluminum-coated carbon fiber composite aluminum wire is small, even when the overhead ground wire becomes high temperature due to a lightning strike current or the like, the increase in sag can be suppressed low, and the optical fiber can be more reliably protected. Furthermore, since the segment-shaped aluminum-coated carbon fiber composite aluminum strand is twisted, the outer diameter of the overhead ground wire can be reduced, and the wind pressure load and the icing and snow load can be reduced.
【００２３】[0023]
【発明の効果】以上説明したように本発明によれば、セ
グメント形の炭素繊維複合アルミ素線又はアルミ被覆炭
素繊維複合アルミ素線を断面円形に撚り合わせたことに
より、軽量で、高温時の弛度増加が少なく、しかも外径
の小さい架空送電線及び光ファイバ複合架空地線を得る
ことができる。As described above, according to the present invention, a segment-shaped carbon fiber composite aluminum element wire or an aluminum-coated carbon fiber composite aluminum element wire is twisted into a circular cross section, thereby achieving a light weight and high temperature It is possible to obtain an overhead transmission line and an optical fiber composite overhead ground wire having a small increase in sag and a small outer diameter.
【図１】 本発明に係る架空送電線の一実施形態を示す
断面図。FIG. 1 is a sectional view showing an embodiment of an overhead transmission line according to the present invention.
【図２】 本発明に係る架空送電線の他の実施形態を示
す断面図。FIG. 2 is a sectional view showing another embodiment of the overhead transmission line according to the present invention.
【図３】 本発明に係る架空送電線のさらに他の実施形
態を示す断面図。FIG. 3 is a sectional view showing still another embodiment of the overhead transmission line according to the present invention.
【図４】 本発明に係る架空送電線のさらに他の実施形
態を示す断面図。FIG. 4 is a sectional view showing still another embodiment of the overhead transmission line according to the present invention.
【図５】 本発明に係る架空送電線のさらに他の実施形
態を示す断面図。FIG. 5 is a sectional view showing still another embodiment of the overhead transmission line according to the present invention.
【図６】 本発明に係る光ファイバ複合架空地線の一実
施形態を示す断面図。FIG. 6 is a sectional view showing an embodiment of an optical fiber composite overhead ground wire according to the present invention.
１ａ：断面円形の炭素繊維複合アルミ素線 １ｂ：セグメント形の炭素繊維複合アルミ素線 ２：中心抗張力体 ３：断面円形のアルミ素線 ４：防食グリース ５ａ：断面円形のアルミ被覆炭素繊維複合アルミ素線 ５ｂ：セグメント形のアルミ被覆炭素繊維複合アルミ素
線 ６：アルミ被覆 ７：セグメント形のアルミ素線 ８：溝付きスペーサ ９：光ファイバ心線 10：アルミパイプ 11：中心ユニット1a: Carbon fiber composite aluminum wire with circular cross section 1b: Segment-shaped carbon fiber composite aluminum wire 2: Central tensile strength member 3: Aluminum wire with circular cross section 4: Anticorrosive grease 5a: Aluminum coated carbon fiber composite aluminum with circular cross section Element wire 5b: Segment type aluminum coated carbon fiber composite aluminum element wire 6: Aluminum coating 7: Segment type aluminum element wire 8: Slotted spacer 9: Optical fiber core wire 10: Aluminum pipe 11: Central unit
Claims (3)
はアルミ被覆炭素繊維複合アルミ素線を断面円形に撚り
合わせたものを中心抗張力体とし、この中心抗張力体の
外周にアルミ素線を撚り合わせたことを特徴とする架空
送電線。1. A central strength member is obtained by twisting a segment-shaped carbon fiber composite aluminum wire or an aluminum-coated carbon fiber composite aluminum wire in a circular cross section, and twists an aluminum wire around the outer periphery of the center strength member. An overhead transmission line characterized by the following.
間に防食グリースを介在させたことを特徴とする請求項
１記載の架空送電線。2. The overhead transmission line according to claim 1, wherein an anticorrosive grease is interposed between the center tensile member and the twisted aluminum wire layer.
グメント形の炭素繊維複合アルミ素線又はアルミ被覆炭
素繊維複合アルミ素線を断面円形に撚り合わせたことを
特徴とする光ファイバ複合架空地線。3. An optical fiber composite aerial ground, wherein a segment-shaped carbon fiber composite aluminum wire or an aluminum-coated carbon fiber composite aluminum wire is twisted in a circular cross section around an outer periphery of a pipe containing an optical fiber. line.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000106672A JP4550218B2 (en) | 2000-04-07 | 2000-04-07 | Optical fiber composite ground wire |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000106672A JP4550218B2 (en) | 2000-04-07 | 2000-04-07 | Optical fiber composite ground wire |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2001291429A true JP2001291429A (en) | 2001-10-19 |
| JP4550218B2 JP4550218B2 (en) | 2010-09-22 |
Family
ID=18619805
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2000106672A Expired - Lifetime JP4550218B2 (en) | 2000-04-07 | 2000-04-07 | Optical fiber composite ground wire |
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| CN104425079A (en) * | 2013-09-10 | 2015-03-18 | 国家电网公司 | Carbon fiber enhanced aluminum alloy conductor temperature self-measuring variable frequency cable |
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