JPS5954113A - Power cable - Google Patents

Power cable

Info

Publication number
JPS5954113A
JPS5954113A JP16343882A JP16343882A JPS5954113A JP S5954113 A JPS5954113 A JP S5954113A JP 16343882 A JP16343882 A JP 16343882A JP 16343882 A JP16343882 A JP 16343882A JP S5954113 A JPS5954113 A JP S5954113A
Authority
JP
Japan
Prior art keywords
conductor
compression
fan
wires
cable
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
JP16343882A
Other languages
Japanese (ja)
Other versions
JPH0127523B2 (en
Inventor
小石原 進
伊坂 勝征
吉田 文雄
二本杉 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 JP16343882A priority Critical patent/JPS5954113A/en
Publication of JPS5954113A publication Critical patent/JPS5954113A/en
Publication of JPH0127523B2 publication Critical patent/JPH0127523B2/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素線を撚合「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 twisted wire conductor constructed 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」
二できるからである。
This conductor configuration dramatically improves the conductor space factor in the cable compared to a conductor wire with a round cross section.
Two, because you can.

更に、油通路用の中空部を右する構造では、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 the structure in which the hollow part for the oil passage is located on the right side, 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★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 put a stranded wire conductor having such a configuration into practical use at present.

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
エツジが立つ等の現象が生じやすいからである。
This is because, in such conductors, due to the influence of residual stress in the wires, the conductor may become untwisted, the conductor wires may become loose or loose, and sometimes the edges of the flat or fan-shaped conductor wires 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j;リバラバラにほぐれ
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 disjointed due to the effects of residual stress, etc., 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討し
、失敗を繰り返した後で、遂にその解決案を見い出した
The inventors of the present application made various studies to overcome this difficulty, 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、前記した従来描造の欠点を一掃
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 conductor with a flat or fan-shaped cross section, which can eliminate the drawbacks of the conventional drawing described above. It's about doing.

本発明の要旨は、断面平型又は扇型の導体素線を撚合せ
又は集合すると共に、硬いダイス、ロール又はその他の
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応力を
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 other means to cause slight plastic deformation in the conductor wires. This eliminates residual stress in each conductor strand.

圧縮の程度は、各導体索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、それにより小さくても大ぎ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 cable disappears, so that neither small nor large amounts are inappropriate.

その程度は、圧縮後の撚線導体の包結線内面積S′O(
第2図(ロ)参照)が、圧縮前の撚線導体の包絡線内面
積So(第2図(イ)参照)に対し−U0.2〜5.0
%減少する範囲である必要がある。
The degree of this is determined by the envelope inner area S′O(
(see Fig. 2 (b)) is -U0.2 to 5.0 with respect to the area within the envelope So of the stranded conductor before compression (see Fig. 2 (a)).
% reduction.

この範囲内での最適圧縮程度は、導体索線構成、導体占
積率、導体材質によって異なる。
The optimum degree of compression within this range varies depending on the conductor cable configuration, conductor space factor, and conductor material.

圧縮の程度が小さ過ぎるど、各導体索線の残留応力を十
分に消滅させることができず、他方、大ぎ過ぎると加]
]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 cable cannot be sufficiently eliminated; on the other hand, if the degree of compression is too large, the residual stress will be increased.
] Curing increases the rigidity of the completed conductor, making it difficult to handle such as bending.

なお、軽度の圧縮で容易に導体素線に塑性変形を生じゼ
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するためには導体
素線としては焼鈍材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 slight compression, and to prevent the rigidity of the completed conductor from increasing significantly even if the compression becomes excessive, the conductor strands should be annealed. It is preferable to use wood.

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、lっ中空部を有
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, 23-111, 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.

3− 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。
3- 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. be.

このようにするた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 specific means for doing so is shown in FIG.

すなわち、断面扇型の導体素線21.22.23−−−
一−−は、撚合機(図示せず)に装備されたボビン41
.42.43−m−−−から撚り出され、金属製ダイス
40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。
That is, the conductor strands 21, 22, 23 with a fan-shaped cross section
1-- is a bobbin 41 installed in a twisting machine (not shown)
.. The strands are twisted from 42.43-m--- and converged in a metal die 40, and each strand is twisted together and is slightly compressed and plastically deformed within the above-mentioned range.

2層目を構成する断面扇型導体素線210゜ 220.230−−−−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は内部じゃへい層、
2は絶縁層、Slは外部じゃへい層、Sは金属シース、
Bは外装である。
The cross-sectional fan-shaped conductor strands 210°220.230 constituting the second layer are separated by another metal die 400
The fibers are bundled together and twisted around the strands of the first layer, and are slightly compressed and plastically deformed within the above-mentioned range. In Fig. 3, Sl is an internal barrier layer,
2 is an insulating layer, Sl is an external barrier layer, S is a metal sheath,
B is the exterior.

第5図は本発明の実施例を示し、中心部に断面=4− 丸型導体索線500を配置した場合の構造である。FIG. 5 shows an embodiment of the present invention, with cross section = 4- This is a structure when a round conductor cable wire 500 is arranged.

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.

以上のように、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N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 has made it possible to provide a power cable having a conductor made of a flat or fan-shaped conductor wire, which has conventionally 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、素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どなった。
In this way, the residual stress in the strands disappears, so the twist of the conductor is restored, the conductor strands become loose or loose, and sometimes the edges of the flat or fan-shaped conductor strands 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 connection work can be performed extremely smoothly.

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

第1図は断面平型又は扇型導体素線を撚合ぜて構成した
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J: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。 宵 1 口 昂Zlii] 1句                  (ロ)特許
庁長官殿 2発明の名称 電  ツノ  ケ  −  ブ  ル 37m正をする省 事PIとの関係 特  許 出願人 チョダ フルウチ 住 所    東京都千代ff1区丸の内皿丁目1番2
@ヒタチ fンセン 名称(512)日立電線矧ξ式会ネーl二4 代   
理   人〒100 居 所    東京都千代「H置火の内皿丁目1番2@
補正の対象 明細書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正Jる。 添付書類の目録 別紙(特許請求の範囲)      1通−以    
」二 − 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描成し
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
体の包絡線内面積が圧縮前のそれに対して0.2〜5.
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 Figure 2 (a) and (b) are fan-shaped conductor wires. J: An explanatory cross-sectional view showing the state before and after compression of the stranded wire conductor configured in this manner, Fig. 3 is an explanatory cross-sectional view showing an embodiment of the electric cable of the present invention, and Fig. 4 is an example of compression means for the conductor strands. 21.22.23: Conductor strand with fan-shaped cross section, 200: Hollow part for oil passage, 20: Stranded conductor. Evening 1 Kuchiko Zlii] 1 phrase (b) Director General of the Japan Patent Office 2 Name of the invention Relationship with the Ministry PI who will correct the power cable 37m Patent Applicant Choda Furuuchi Address Marunouchi Sara-chome, Chiyo FF 1-ku, Tokyo 1st 2nd
@Hitachi fsen name (512) Hitachi Cable Hagishikikai Nei l 24th generation
Address: 100 Address: Chiyo, Tokyo 1-2 H Okibi no Uchisara-chome @
Claims column of the specification subject to amendment. Contents of the amendment The scope of the claims has been amended as shown in the attached sheet. List of attached documents (scope of claims) 1 copy - or more
2 - Claims In an electric cable having a stranded conductor drawn by twisting or gathering flat or sector-shaped conductor wires, each of these conductor wires is subjected to slight compression. The degree of compression is such that the area within the envelope of the stranded conductor after compression is 0.2 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ゼヌは集合して構成し
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
体の包絡線内面積が圧縮前のそれに対して0.2〜5.
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 an electric cable having a stranded conductor formed by twisting conductor wires with a flat or fan-shaped cross section, 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 area within the envelope of the stranded wire conductor after compression is 0.2 to 5.
An electric cable characterized by a range of 0% reduction.
JP16343882A 1982-09-20 1982-09-20 Power cable Granted JPS5954113A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP16343882A JPS5954113A (en) 1982-09-20 1982-09-20 Power cable

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16343882A JPS5954113A (en) 1982-09-20 1982-09-20 Power cable

Publications (2)

Publication Number Publication Date
JPS5954113A true JPS5954113A (en) 1984-03-28
JPH0127523B2 JPH0127523B2 (en) 1989-05-30

Family

ID=15773886

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16343882A Granted JPS5954113A (en) 1982-09-20 1982-09-20 Power cable

Country Status (1)

Country Link
JP (1) JPS5954113A (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
JPH0127523B2 (en) 1989-05-30

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