JPS5954114A - Power cable - Google Patents

Power cable

Info

Publication number
JPS5954114A
JPS5954114A JP16343982A JP16343982A JPS5954114A JP S5954114 A JPS5954114 A JP S5954114A JP 16343982 A JP16343982 A JP 16343982A JP 16343982 A JP16343982 A JP 16343982A JP S5954114 A JPS5954114 A JP S5954114A
Authority
JP
Japan
Prior art keywords
conductor
compression
fan
wires
cross
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.)
Granted
Application number
JP16343982A
Other languages
Japanese (ja)
Other versions
JPH0127524B2 (en
Inventor
小石原 進
伊坂 勝征
吉田 文雄
三本杉 清
丹治 勤
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hitachi Cable Ltd
Original Assignee
Hitachi Cable Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Hitachi Cable Ltd filed Critical Hitachi Cable Ltd
Priority to JP16343982A priority Critical patent/JPS5954114A/en
Publication of JPS5954114A publication Critical patent/JPS5954114A/en
Publication of JPH0127524B2 publication Critical patent/JPH0127524B2/ja
Granted legal-status Critical Current

Links

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、断面平型又は扇型導体索線を撚合せ又は集合
して構成した撚線導体を有する電カケープルの改良に関
する。
DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an improvement in a power cable having a stranded conductor formed by twisting or gathering conductor wires having a flat or fan-shaped cross section.

従来において、電カケープルの撚線導体を構成する素線
として、断面平型又は扇型の導体素線を用いた第1図に
示すような導体構成が提案されている。
BACKGROUND ART Conventionally, a conductor structure as shown in FIG. 1 has been proposed in which conductor wires having a flat or fan-shaped cross section are used as the wires constituting the stranded conductor of an electric cable.

この導体構成であれば断面丸型の導体素線を用いたもの
に比較し、ケーブルにおける導体占積率を飛躍的に向上
できるからである。
This is because with this conductor configuration, the conductor space factor in the cable can be dramatically improved compared to one using conductor wires with a round cross section.

更に、油通路用の中空部を有する構造では、導体自身が
油通路用の中空部を確保した状態を保護するため、油通
路用のスパイラル管を省略できるからである。
Furthermore, in a structure having a hollow part for the oil passage, the spiral pipe for the oil passage can be omitted because the conductor itself protects the hollow part for the oil passage.

(第1図において、1は導体素線であり、10は油通路
としての中空部である。) しかしながら、現実にこのような構成の撚線導体を実用
化するとは容易ではなかった。
(In FIG. 1, 1 is a conductor strand, and 10 is a hollow portion serving as an oil passage.) However, it has not been easy to actually put a stranded wire conductor having such a configuration into practical use.

なぜならば、かかる導体においては、素線の残留応力等
の影響により導体の撚りが戻ったり、導体索線相互にゆ
るみや笑いが生じたり、時には平型又は扇型導体素線の
エツジが立つ等の現象が生じやすいからである。
This is because such conductors may become untwisted due to the influence of residual stress in the strands, the conductor cables may become loose or loose, and sometimes the edges of the flat or fan-shaped conductor strands may become erect. This is because the following phenomenon is likely to occur.

更に、ケーブルの接続作業時に、導体を切断すると、各
素線はその残留応力等の影響によりバラバラにほぐれた
状態となり、その後の接続作業を著しく困難とするから
である。
Furthermore, if the conductor is cut during cable connection work, each strand becomes loose due to its residual stress, making subsequent connection work extremely difficult.

本願発明者等は、この困難を克服するために種々検問し
、失敗を繰り返した後で、遂にその解決案を見い出した
In order to overcome this difficulty, the inventors of the present application conducted various tests and after repeated failures, finally found a solution.

その解決案とは、各導体素線に対し特定範囲の圧縮を加
え塑性変形を生じさせることである。
The solution is to apply a specific range of compression to each conductor strand to cause plastic deformation.

本発明は、この知見に基づいてなされたものであり、そ
の目的とするところは、前記した従来構造の欠点を一掃
することの出来た断面平型又は扇型導体を用いた電カケ
ープルを提供することにある。
The present invention has been made based on this knowledge, and its purpose is to provide an electric cable using a flat or sector-shaped conductor in cross section, which can eliminate the drawbacks of the conventional structure described above. There is a particular thing.

本発明の要旨は、断面平型又は扇型の導体索線を撚合せ
又は集合すると共に、硬いダイス、ロール又はその仙の
手段によって軽度の圧縮を加え、導体素線に軽度の塑性
変形を生じさせることによって各導体素線の残留窓ノコ
を消滅させたものである。
The gist of the present invention is to twist or gather conductor wires having a flat or fan-shaped cross section, and apply slight compression using hard dies, rolls, or the like to cause slight plastic deformation to the conductor wires. By doing so, residual window saws on each conductor wire were eliminated.

圧縮の程度は、各導体素線の残留応力が消滅する程度の
軽度の塑性変形を生じさせるに足る程度である必要があ
り、それより小さくても大きくても不適当である。
The degree of compression must be sufficient to cause slight plastic deformation to the extent that the residual stress in each conductor strand disappears, and it is inappropriate if it is smaller or larger than that.

その程度は、圧縮後の撚線導体の導体実断面積ΣS′−
8−1+S−2+S−3+−−一+3−n(第2図(ロ
)参照)が、圧縮前の撚線導体の導体実断面積Σ5=8
1”−82+83 +−−−」−8n  (第2図(イ
)参照)に対して1.0〜5.0%減少J−る範囲であ
る必要がある。
The degree of this is determined by the actual conductor cross-sectional area ΣS′− of the stranded wire conductor after compression.
8-1+S-2+S-3+--1+3-n (see Figure 2 (b)) is the actual conductor cross-sectional area of the stranded wire conductor before compression Σ5=8
1"-82+83 +---"-8n (see Figure 2 (a)) must be within a range of 1.0 to 5.0%.

この範囲内での最適圧縮程度は、導体素線構成、導体占
積率、導体材質によって賃なる。
The optimum degree of compression within this range depends on the conductor strand configuration, conductor space factor, and conductor material.

圧縮の程度が小さ過ぎると、各導体素線の残留応力を十
分に消滅させることができず、他方、大き過ぎると加工
硬化により、完成導体の剛性が増加し、曲げなどの取扱
いが困難となる。
If the degree of compression is too small, the residual stress in each conductor strand cannot be sufficiently eliminated; on the other hand, if it is too large, the stiffness of the completed conductor increases due to work hardening, making handling such as bending difficult. .

なお、軽度の圧縮で容易に導体素線に塑性変形を生じせ
しめかつ圧縮が過度になった場合でも完成導体の剛性を
著しく増加せしめることがないようにづるためには導体
索線としては焼鈍拐を使うことが望ましい。
In addition, in order to prevent plastic deformation of the conductor strands from being easily caused by mild compression and not significantly increasing the rigidity of the completed conductor even if the compression becomes excessive, conductor cables should be annealed. It is preferable to use

第3図及び第4図を引用し、本発明の一実施例を説明す
る。
An embodiment of the present invention will be described with reference to FIGS. 3 and 4.

この実施例は導体素線が2層から成り、月つ中空部を有
する場合である。
In this embodiment, the conductor wire consists of two layers and has a hollow portion.

すなわち、断面扇型の導体素線21.22.23−一一
一一が撚合されて、中心部に油通路用中空部200を残
して撚線導体20が形成されている。
That is, the conductor wires 21, 22, 23-1111 each having a fan-shaped cross section are twisted together to form the twisted wire conductor 20, leaving a hollow part 200 for an oil passage in the center.

各導体素線に対しては、前記した範囲内の圧縮が加えら
れて、各導体素線に軽度の塑性変形を生じさせることに
よって各導体素線の残留応力を消滅させであるものであ
る。
Compression within the range described above is applied to each conductor strand to cause slight plastic deformation in each conductor strand, thereby eliminating residual stress in each conductor strand.

このようにするだめの具体的手段の一例が、第4図に示
されている。
An example of a concrete means for doing this is shown in FIG.

すなわち、断面扇型の導体素線21.22.23−一一
一一一は、撚合機(図示せず〉に装備されたボビン41
.42.43−−−一から撚り出され、金属製ダイス4
0に集束されて、各素線は撚合されると共に、前記した
範囲内で軽度に圧縮されて塑性変形されるのである。2
層目を構成する断面扇型導体素線210.220.23
0−−一が、別の金属製ダイス400により集束されて
、1層目の素線周上に撚合されると共に、前記した範囲
内で軽度に圧縮されて塑性変形されるものである。第3
図において、Slは内部しやへい層、2は絶縁層、SI
は外部じゃへい層、Sは金属シース、Bは外装である。
In other words, the conductor wires 21, 22, 23-11, and 23-11-11 having a fan-shaped cross section are connected to a bobbin 41 installed in a twisting machine (not shown).
.. 42.43---Twisted from scratch, metal dice 4
0, each strand is twisted, and is slightly compressed and plastically deformed within the above-mentioned range. 2
Cross-sectional fan-shaped conductor wire 210.220.23 constituting the layer
0 to 1 are bundled by another metal die 400, twisted around the periphery of the first layer of strands, and are slightly compressed and plastically deformed within the above range. Third
In the figure, SI is an internal thin layer, 2 is an insulating layer, SI
is the outer barrier layer, S is the metal sheath, and B is the exterior.

−Fl  −A。-Fl  -A.

=4− 第5図は本発明の実施例を示し、中心部に断面扇型導体
素線500を配置した場合の構造である。
=4- FIG. 5 shows an embodiment of the present invention, and shows a structure in which a conductor wire 500 having a fan-shaped cross section is arranged in the center.

第3図と同符号の要素は、同一要素であり、説明を省略
する。
Elements with the same symbols as in FIG. 3 are the same elements, and their explanations will be omitted.

以上のにうに、説明した本発明によって、従来において
実用に供することが困難視されていた断面平型又は扇型
導体素線より成る導体を有する電カケープルを提供する
ことが出来たのである。
As described above, the present invention as described has made it possible to provide a power cable having a conductor made of a flat or fan-shaped conductor wire, which has heretofore been considered difficult to put into practical use.

すなわち、各導体素線に対し、特定範囲の軽度の圧縮を
加えて軽度の塑性変形を生じさせることにより各導体素
線の残留応力を消滅せしめたことに重要なポイントがあ
る。
That is, the important point is that residual stress in each conductor strand is eliminated by applying slight compression in a specific range to each conductor strand to cause slight plastic deformation.

このように、索線の残留応力が消滅した状態となってい
るので、導体の撚りが戻ったり、導体素線相互にゆるみ
や笑いが生じたり、時には平型又は扇型導体素線のエツ
ジが立つ等の減少が皆無となった。
In this way, the residual stress in the cable wire has disappeared, so the twist of the conductor is restored, the conductor wires become loose or loose, and sometimes the edges of the flat or fan-shaped conductor wires become loose. There was no decrease in standing, etc.

更に、驚くべきことには、ケーブルの接続作業時に導体
を切断しても、各素線がバラバラにほぐれることが皆無
となった。従って、その後の接続作べ6一 業を極めて円滑におこなうことができる。
Furthermore, surprisingly, even when the conductor is cut during cable connection work, the individual wires no longer come undone. Therefore, subsequent connections can be made extremely smoothly.

【図面の簡単な説明】[Brief explanation of drawings]

第1図は断面平型又は扇型導体素線を撚合せて構成した
撚線導体の一例を示す断面説明図、第2図の(イ)およ
び(ロ)は、扇型導体素線により構成した撚線導体の圧
縮前後の状態を示す断面説明図、第3図は本発明の電カ
ケープルの一実施例を示す断面説明図、第4図は導体素
線に対する圧縮手段の一例を示す説明図、第5図は本発
明の電カケープルの別の実施例を示す断面説明図である
。 21.22.23:断面扇型の導体素線、200:油通
路用中空部、 20:撚線導体。 第 1 l 籟Z 図 (句                 (ロ)手続補
正用(自発へ1.’(’H 昭和   年   月   「] 1事件の表示 昭和  57  年  特   訂  願第 1634
39  @2発明の名称 電  ノJ  ケ  −  ブ  ル 3 補正を1−る者 事件どの関係 特  許 出願人 チョダ マルウ手 住 所    東京都千代[1置火の内皿丁目1番2号
名称(512)日立電線層ξ式会ネ[ 4代  理  人〒100 居 所    東京都千代[0置火の内皿丁目1番2号
補正の対象 明細mの特許請求の範囲の欄。 補正の内容 特許請求の範囲を別紙の通り訂止Jる。 添イ・1書類の目録 別紙(特許請求の範囲)      1通−以 」−− 特許請求の範囲 断面平型又は扇型導体素線を撚合せ又は集合して構成し
た撚線導体を有する電カケープルにおいて、これら各導
体素線に対しては、軽度の圧縮を加えて軽度の塑性変形
を生じさせてあり、この圧縮の程度は、圧縮後の撚線導
体の導体実断面積が圧縮前のそれに対して1.0〜5.
0%減少する範囲であることを特徴とする電カケープル
。 2−
Figure 1 is a cross-sectional explanatory diagram showing an example of a stranded conductor constructed by twisting flat or fan-shaped conductor wires, and (a) and (b) in Figure 2 are constructed from fan-shaped conductor wires. FIG. 3 is an explanatory cross-sectional view showing an embodiment of the electric cable of the present invention, and FIG. 4 is an explanatory view showing an example of compression means for conductor strands. , FIG. 5 is an explanatory cross-sectional view showing another embodiment of the power cable of the present invention. 21.22.23: Conductor wire with fan-shaped cross section, 200: Hollow part for oil passage, 20: Twisted wire conductor. No. 1 l 籟Z 图(phrase (b) For procedural amendments (spontaneous to 1.'('H Showa year month ') 1 Display of case 1982 Special revision application No. 1634
39 @2 Name of the invention Telephone J Cable 3 What is the relationship between the person making the amendment and the case Patent Applicant Choda Maru address Address Chiyo, Tokyo [1 No. 1-2 Okihi-no-Uchisara-chome Name (512 )Hitachi Cable Layer ξ Ceremony Nei [4th Director Person 〒100 Address Chiyo, Tokyo [0 Okibi no Uchidara-chome No. 1-2 Claims column of the subject specification m of the amendment. Contents of the amendment The scope of the claims is revised as shown in the attached sheet. Attachment A. Attachment to catalog of 1 document (Claims) 1 copy - Claims: Electric cable having a stranded conductor constructed by twisting or gathering flat or fan-shaped conductor wires in cross-section In the above, each of these conductor strands is subjected to slight compression to cause slight plastic deformation, and the degree of compression is such that the actual cross-sectional area of the stranded conductor after compression is equal to that before compression. 1.0 to 5.
An electric cable characterized by a range of 0% reduction. 2-

Claims (1)

【特許請求の範囲】[Claims] 断面平型又は扇型導体素線を撚合I又は集合して構成し
た撚線導体を有する電カケープルにおいて、これら各導
体素線に対しては、軽度の圧縮を加えて程度の塑性変形
を生じさせてあり、この圧縮の程度は、圧縮後の撚線導
体の導体実断面積が圧縮前のそれに対して1.0〜5.
0%減少する範囲であることを特徴とする電カケープル
In a power cable having a stranded conductor constructed by twisting or gathering flat or sector-shaped conductor wires, each of these conductor wires is subjected to slight compression to cause a certain degree of plastic deformation. The degree of compression is such that the actual conductor cross-sectional area of the stranded conductor after compression is 1.0 to 5.
An electric cable characterized by a range of 0% reduction.
JP16343982A 1982-09-20 1982-09-20 Power cable Granted JPS5954114A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP16343982A JPS5954114A (en) 1982-09-20 1982-09-20 Power cable

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16343982A JPS5954114A (en) 1982-09-20 1982-09-20 Power cable

Publications (2)

Publication Number Publication Date
JPS5954114A true JPS5954114A (en) 1984-03-28
JPH0127524B2 JPH0127524B2 (en) 1989-05-30

Family

ID=15773904

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16343982A Granted JPS5954114A (en) 1982-09-20 1982-09-20 Power cable

Country Status (1)

Country Link
JP (1) JPS5954114A (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS581485A (en) * 1981-06-29 1983-01-06 中沢 助市 Scissors
JPH072074A (en) * 1993-04-16 1995-01-06 Robert Bosch Gmbh Valve gear for skid control device

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS581485A (en) * 1981-06-29 1983-01-06 中沢 助市 Scissors
JPH072074A (en) * 1993-04-16 1995-01-06 Robert Bosch Gmbh Valve gear for skid control device

Also Published As

Publication number Publication date
JPH0127524B2 (en) 1989-05-30

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