JPH067112U - Overhead wire - Google Patents
Overhead wireInfo
- Publication number
- JPH067112U JPH067112U JP5167892U JP5167892U JPH067112U JP H067112 U JPH067112 U JP H067112U JP 5167892 U JP5167892 U JP 5167892U JP 5167892 U JP5167892 U JP 5167892U JP H067112 U JPH067112 U JP H067112U
- Authority
- JP
- Japan
- Prior art keywords
- frp
- tension member
- twisted
- wire
- overhead 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.)
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- Non-Insulated Conductors (AREA)
Abstract
(57)【要約】
【構成】 複数本の断面セグメント形状のＦＲＰ（繊維
強化プラスチック）素線４ａを撚合したテンションメン
バー２上にアルミ撚合層６を積層して架空電線１を構成
した。
【効果】 複数本の断面セグメント形状のＦＲＰ素線４
ａを撚合したテンションメンバー２は、断面円形のＦＲ
Ｐ素線を撚合したテンションメンバーに比べ占積率が大
きく、鋼クランプの圧縮率を低く抑えることができるの
で、鋼クランプを圧縮接続する際に、ＦＲＰ素線４ａに
縦方向の割れが生じるようなおそれは全くなく、架線弛
度の低下を確実に抑制し得る軽量高強度の架空電線を提
供し得る。
(57) [Summary] [Construction] The aerial wire 1 was constructed by laminating the aluminum twisted layer 6 on the tension member 2 in which a plurality of FRP (fiber reinforced plastic) strands 4a having a cross-section segment shape were twisted together. [Effect] FRP strand 4 having a plurality of sectional segment shapes
The tension member 2 formed by twisting a is FR with a circular cross section.
Since the space factor is larger than that of the tension member in which the P strands are twisted, and the compression ratio of the steel clamp can be suppressed to be low, a vertical crack occurs in the FRP strand 4a when the steel clamp is compression connected. There is no such possibility, and it is possible to provide a lightweight and high-strength overhead wire that can surely suppress a decrease in overhead wire sag.
Description
【０００１】[0001]
本考案は架空電線に関するものである。 The present invention relates to an overhead wire.
【０００２】[0002]
従来、送電線自体を軽量化し、架線弛度の低下を抑制した架空電線として、図 ５に示すように、炭素繊維、アラミド繊維、シリコンカーバイド繊維等の無機あ るいは有機繊維を耐熱性強度を有する合成樹脂をバインダーとして結束し線条化 した断面円形の複数本のＦＲＰ（繊維強化プラスチック）素線を撚合してテンシ ョンメンバ−２０とし、該テンションメンバ−２０上に銅線をアルミ被覆した銅 複合アルミ素線、又は、アルミ素線２１を撚合した架空電線（実開平２−２２５ ２５号公報及び特開平３−１２９６０６号参照）が知られている。 Conventionally, as an overhead wire in which the transmission line itself is made lighter and the sag of the overhead wire is suppressed, as shown in Fig. 5, carbon fiber, aramid fiber, silicon carbide fiber, or other inorganic or organic fiber is used to improve heat resistance. A plurality of FRP (fiber reinforced plastic) strands having a circular cross section which are bundled by using a synthetic resin as a binder to form a filament are twisted to form a tension member 20, and a copper wire is coated on the tension member 20 with aluminum. A copper composite aluminum element wire or an overhead wire in which aluminum element wires 21 are twisted together (see Japanese Utility Model Laid-Open No. 2-22525 and Japanese Patent Application Laid-Open No. 3-129606) is known.
【０００３】[0003]
しかしながら、上述した架空電線においてはテンションメンバ−２０が、複数 本の断面円形のＦＲＰ（繊維強化プラスチック）素線を撚合して構成されている ために、鋼クランプを圧縮接続する際に、その圧縮力によりＦＲＰ素線に縦方向 への割れが生じ架線弛度が低下するという問題点があり、また、ある種の炭素繊 維を強化成分とし、耐熱性強度を有する合成樹脂をバインダーとして結束し線条 化した複数本のＦＲＰ素線を撚合したテンションメンバー２０においては、該テ ンションメンバー２０とその上に撚合したアルミ素線２１との間に水等が介在す ると、アルミ素線２１が腐食するおそれがある等の問題点があった。 However, in the above-mentioned overhead wire, the tension member-20 is formed by twisting a plurality of FRP (fiber reinforced plastic) strands having a circular cross section. There is a problem that the compressive force causes the FRP strands to crack in the vertical direction and the sag of the overhead line decreases, and also, a certain type of carbon fiber is used as a reinforcing component, and a synthetic resin having heat resistance strength is used as a binder to bind it. In the tension member 20 formed by twisting a plurality of FRP strands formed into a linear wire, if water or the like intervenes between the tension member 20 and the aluminum strand 21 that is twisted on the tension member 20, aluminum There is a problem that the strand 21 may be corroded.
【０００４】 本考案は上記問題点に鑑みなされたもので、鋼クランプを圧縮接続する際にＦ ＲＰ素線に縦方向への割れが生じるようなおそれの全くない、軽量高強度な架空 電線を提供することを目的とする。The present invention has been made in view of the above problems, and provides a lightweight and high-strength overhead wire which is free from the possibility of vertical cracks in the FRP wire when the steel clamp is compression-connected. The purpose is to provide.
【０００５】[0005]
【課題を解決するための手段】 本考案は、テンションメンバーがＦＲＰ（繊維強化プラスチック）からなる架 空電線において、前記テンションメンバーに断面セグメント形状のＦＲＰ素線を 用いて架空電線を構成し、従来の問題点を解消したものである。Means for Solving the Problems The present invention relates to an overhead wire in which a tension member is made of FRP (fiber reinforced plastic), and the overhead wire is configured by using a FRP strand having a cross-section segment shape for the tension member. The problem of is solved.
【０００６】[0006]
断面セグメント形状のＦＲＰ素線を撚合したテンションメンバーは、断面円形 のＦＲＰ素線を撚合したテンションメンバーよりも占積率が大きく、鋼クランプ の圧縮率を低く抑えることができる。 The tension member formed by twisting the FRP strands having the cross-sectional segment shape has a larger space factor than the tension member formed by twisting the FRP strands having the circular cross section, and can suppress the compressibility of the steel clamp to be low.
【０００７】[0007]
以下、本考案の実施例を図面により説明する。図１は本考案の一実施例を示す 横断面図で、図において１は架空電線、２はテンションメンバーで、該テンショ ンメンバー２は炭素繊維、アラミド繊維、或いは、シリコンカーバイド繊維等の 有機又は無機繊維を、耐熱性強度を有する合成樹脂をバインダーとして結束し線 条化した断面円形のＦＲＰ（繊維強化プラスチック）線からなる心線３の外周上 に、該心線３と同材質の断面セグメント状の複数本のＦＲＰ素線４ａを撚合した ＦＲＰ撚合層４を設けて構成されている。なお、心線３は亜鉛メッキ鋼線として もよく、また、０ＰＧＷ（光ファイバ複合架空地線）の場合には省略し得るもの である。 Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a cross-sectional view showing an embodiment of the present invention, in which 1 is an overhead wire, 2 is a tension member, and the tension member 2 is an organic or carbon fiber, aramid fiber, or silicon carbide fiber. On the outer circumference of the core wire 3 made of FRP (fiber reinforced plastic) wire having a circular cross section, which is formed by binding inorganic fibers with a synthetic resin having heat resistance strength as a binder, a cross-section segment of the same material as the core wire 3 is formed. The FRP twisted layer 4 is formed by twisting a plurality of FRP strands 4a. The core wire 3 may be a galvanized steel wire, and may be omitted in the case of 0PGW (optical fiber composite overhead ground wire).
【０００８】 ５は防食層で、該防食層５はＦＲＰ撚合層４の周面に、又は、ＦＲＰ撚合層４ を構成するＦＲＰ素線４ａの外周面にアルミ材を被覆したり、亜鉛、セラミック 等をメッキし、或いは、蒸着させる等の方法により設けられている。Reference numeral 5 denotes an anticorrosion layer. The anticorrosion layer 5 covers the peripheral surface of the FRP twisted layer 4 or the outer peripheral surface of the FRP strand 4 a forming the FRP twisted layer 4 with an aluminum material or zinc. , Ceramic or the like is deposited or vapor-deposited.
【０００９】 上記防食層５は省略してもよいものであるが、前述したように、ある種の炭素 繊維はアルミとの間に水分等があるとアルミを腐食させるが、ＦＲＰ撚合層４の 周面に防食層５を設けておけばＦＲＰ撚合層４上に撚合するアルミ素線の腐食を 有効に防止することができ、また、鋼クランプを圧縮接続する際の応力緩衝層と しても有効である。Although the anticorrosion layer 5 may be omitted, as described above, some carbon fibers corrode aluminum when moisture or the like is present between the carbon fiber and the FRP twisted layer 4 By providing the anticorrosion layer 5 on the circumferential surface of the FRP, it is possible to effectively prevent the corrosion of the aluminum element wires twisted on the FRP twisted layer 4, and also as a stress buffer layer when the steel clamp is compression connected. It is still effective.
【００１０】 ６はＦＲＰ撚合層４上に撚合積層されたアルミ撚合層である。Reference numeral 6 denotes an aluminum twisted layer which is twisted and laminated on the FRP twisted layer 4.
【００１１】 上述のように構成した本考案の架空電線１を鉄塔等に引き留めるには、図２に 示すように架空電線１の端末部を段剥きし、テンションメンバー２を構成する心 線３にＦＲＰ撚合層４と外径が略同径の円筒状のアルミスリーブ又は鋼スリーブ ７を被せて圧縮し、該心線３とＦＲＰ撚合層４を鋼クランプ８の圧縮孔８ａ内に 挿入し圧縮部Ｃをダイスで圧縮する。この際、断面セグメント形状のＦＲＰ素線 ４ａを撚合したＦＲＰ撚合層４からなるテンションメンバー２は、断面円形のＦ ＲＰ素線を撚合したテンションメンバーに比べ占積率が大きく、鋼クランプ８の 圧縮率を低く抑えることができるので、鋼クランプ圧縮時にＦＲＰ素線４ａに縦 方向の割れが生じるようなおそれは全くない。然る後、図３に示すように予め架 空電線に挿通しておいたアルミスリーブ９を、アルミ撚合層６上から鋼クランプ ８上に被せ全体を圧縮して引き留める。また、直線接続の場合も同様の手段で接 続する。In order to retain the overhead electric wire 1 of the present invention configured as described above on a steel tower or the like, as shown in FIG. 2, the terminal portion of the overhead electric wire 1 is stripped and the core wire 3 constituting the tension member 2 is removed. A cylindrical aluminum sleeve or steel sleeve 7 having an outer diameter substantially the same as that of the FRP twisted layer 4 is covered and compressed, and the core wire 3 and the FRP twisted layer 4 are inserted into the compression holes 8a of the steel clamp 8. The compression section C is compressed with a die. At this time, the tension member 2 composed of the FRP twisted layer 4 in which the FRP strands 4a having the cross-section segment shape are twisted has a larger space factor than the tension member in which the FRP strands having a circular cross section are twisted, and the steel clamp Since the compression ratio of No. 8 can be suppressed to a low level, there is no possibility that the FRP strand 4a is cracked in the vertical direction when the steel clamp is compressed. After that, as shown in FIG. 3, an aluminum sleeve 9 which has been inserted into the overhead wire in advance is put on the steel clamp 8 from above the aluminum twisted layer 6, and the whole is compressed and retained. Also, in the case of a straight line connection, the same means is used for connection.
【００１２】 なお、心線３上に撚合するＦＲＰ撚合層４は１層に限らず２層〜３層としても よく、また、図４に示すように、テンションメンバー２はＦＲＰ素線４ａ間に亜 鉛メッキ鋼線又はアルミ被覆鋼線４ｂを介在させて撚合して構成してもよいもの である。The FRP twisted layer 4 to be twisted on the core wire 3 is not limited to one layer, but may be two to three layers. Further, as shown in FIG. 4, the tension member 2 has the FRP strand 4a. It may be constructed by interposing a zinc-plated steel wire or an aluminum-coated steel wire 4b between them and twisting them together.
【００１３】[0013]
本考案によれば上述のように、断面セグメント形状のＦＲＰ素線４ａを撚合し てなるテンションメンバー２は、断面円形のＦＲＰ素線を撚合したテンションメ ンバーに比べ占積率が大きく、鋼クランプ８の圧縮率を低く抑えることができる ので、鋼クランプ８を圧縮接続する際の圧縮力によりＦＲＰ素線４ａに縦方向の 割れが生じるようなおそれは全くなく、架線弛度の低下を確実に抑制し得る軽量 高強度の架空電線が得られるという優れた利点がある。また、ある種の炭素繊維 を強化成分とし、耐熱性強度を有する合成樹脂をバインダーとして結束し線条化 した複数本のＦＲＰ素線２ａを撚合したテンションメンバー２においては、ＦＲ Ｐ撚合層４の周面に防食層５を施しておくことにより、テンションメンバー２上 に撚合されたアルミ素線の腐食を有効に防止することができ、且つ、鋼クランプ ８を圧縮接続する際の緩衝層となる等の利点がある。 According to the present invention, as described above, the tension member 2 formed by twisting the FRP strands 4a having the cross-section segment shape has a larger space factor than the tension member formed by twisting the FRP strands having the circular cross section. Since the compression ratio of the steel clamp 8 can be suppressed to a low level, there is no possibility that the FRP strand 4a will be cracked in the vertical direction due to the compressive force when the steel clamp 8 is compression-connected, and the sag of the overhead wire can be reliably reduced. It has an excellent advantage that a lightweight and high-strength overhead wire can be obtained. Further, in the tension member 2 in which a plurality of FRP strands 2a, which are formed by binding a certain kind of carbon fiber as a reinforcing component and a synthetic resin having heat resistance strength as a binder, are formed into a filament, the FRP twisted layer is used. By providing the anticorrosion layer 5 on the peripheral surface of 4, it is possible to effectively prevent the corrosion of the aluminum strands twisted on the tension member 2 and to buffer the steel clamp 8 when it is compressed and connected. There are advantages such as a layer.
【図１】本考案の一実施例を示す横断面図FIG. 1 is a cross-sectional view showing an embodiment of the present invention.
【図２】使用状態を示す説明図FIG. 2 is an explanatory diagram showing a usage state.
【図３】使用状態を示す説明図FIG. 3 is an explanatory diagram showing a usage state.
【図４】本考案の他の実施例を示す横断面図FIG. 4 is a cross-sectional view showing another embodiment of the present invention.
【図５】従来の弛度抑制型架空電線を示す横断面図FIG. 5 is a cross-sectional view showing a conventional slack suppressing overhead wire.
１ 架空電線 ２
テンションメンバー ３ 心線 ４
ＦＲＰ撚合層 ４ａ ＦＲＰ素線
５ アルミ撚合層1 overhead wire 2
Tension member 3 core 4
FRP twisted layer 4a FRP strand
5 Aluminum twist layer
Claims (1)
プラスチック）からなる架空電線において、前記テンシ
ョンメンバーに断面セグメント形状のＦＲＰ素線を用い
たことを特徴とする架空電線。1. An overhead wire in which a tension member is made of FRP (fiber reinforced plastic), wherein the tension member is an FRP strand having a cross-section segment shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1992051678U JP2588486Y2 (en) | 1992-06-30 | 1992-06-30 | Overhead wire |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1992051678U JP2588486Y2 (en) | 1992-06-30 | 1992-06-30 | Overhead wire |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH067112U true JPH067112U (en) | 1994-01-28 |
| JP2588486Y2 JP2588486Y2 (en) | 1999-01-13 |
Family
ID=12893546
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1992051678U Expired - Lifetime JP2588486Y2 (en) | 1992-06-30 | 1992-06-30 | Overhead wire |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2588486Y2 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001291429A (en) * | 2000-04-07 | 2001-10-19 | Furukawa Electric Co Ltd:The | Overhead power line and optical fiber composite overhead earth-wire |
| EP1506085A1 (en) | 2002-04-23 | 2005-02-16 | Composite Technology Corporation | Aluminum conductor composite core reinforced cable and method of manufacture |
| US8371028B2 (en) | 2000-02-08 | 2013-02-12 | Gift Technologies, Llc | Method for increasing the current carried between two high voltage conductor support towers |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5043274U (en) * | 1973-08-20 | 1975-05-01 | ||
| JPH03129606A (en) * | 1989-07-27 | 1991-06-03 | Hitachi Cable Ltd | Aerial power cable |
-
1992
- 1992-06-30 JP JP1992051678U patent/JP2588486Y2/en not_active Expired - Lifetime
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5043274U (en) * | 1973-08-20 | 1975-05-01 | ||
| JPH03129606A (en) * | 1989-07-27 | 1991-06-03 | Hitachi Cable Ltd | Aerial power cable |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8371028B2 (en) | 2000-02-08 | 2013-02-12 | Gift Technologies, Llc | Method for increasing the current carried between two high voltage conductor support towers |
| JP2001291429A (en) * | 2000-04-07 | 2001-10-19 | Furukawa Electric Co Ltd:The | Overhead power line and optical fiber composite overhead earth-wire |
| JP4550218B2 (en) * | 2000-04-07 | 2010-09-22 | 古河電気工業株式会社 | Optical fiber composite ground wire |
| EP1506085A1 (en) | 2002-04-23 | 2005-02-16 | Composite Technology Corporation | Aluminum conductor composite core reinforced cable and method of manufacture |
| JP2005523569A (en) * | 2002-04-23 | 2005-08-04 | コンポジット テクノロジー コーポレイション | Aluminum conductor composite core reinforced cable and manufacturing method |
| EP1506085B1 (en) * | 2002-04-23 | 2016-12-07 | CTC Global Corporation | Aluminum conductor composite core reinforced cable and method of manufacture |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2588486Y2 (en) | 1999-01-13 |
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