JP3512997B2 - Water running prevention type conductor and method of manufacturing the same - Google Patents
Water running prevention type conductor and method of manufacturing the sameInfo
- Publication number
- JP3512997B2 JP3512997B2 JP33942897A JP33942897A JP3512997B2 JP 3512997 B2 JP3512997 B2 JP 3512997B2 JP 33942897 A JP33942897 A JP 33942897A JP 33942897 A JP33942897 A JP 33942897A JP 3512997 B2 JP3512997 B2 JP 3512997B2
- Authority
- JP
- Japan
- Prior art keywords
- twisted wire
- water
- wire layer
- layer
- cord member
- 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.)
- Expired - Fee Related
Links
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/14—Extreme weather resilient electric power supply systems, e.g. strengthening power lines or underground power cables
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、導体内走水防止手
段を設けた送配電ケーブルに関し、特に、紐状の吸水膨
潤体を撚線の層の間に配置してなる走水防止型導体と、
その製造方法に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a power transmission / distribution cable provided with in-conductor water running prevention means, and more particularly, to a water running prevention type conductor in which a string-shaped water absorbing and swelling body is arranged between layers of stranded wires. When,
The manufacturing method is related.
【０００２】[0002]
【従来の技術】高圧・超高圧送電用の撚線導体で構成す
るケーブルにおいては、複数層の撚線層を重ねて巻き付
けるようにして構成しており、前記ケーブル導体では、
素線間に空隙が形成されている。そこで、前記ケーブル
導体の空隙に水が入った場合には、素線間の空隙を通っ
て長い導体全体に影響を与えることになり、ケーブルに
重大な問題が発生する。そこで、前述したような問題が
生じないようにするために、撚線導体の内部空隙に水密
コンパウンドを充填し、水密導体として構成することが
提案されている。2. Description of the Related Art In a cable composed of a stranded wire conductor for high-voltage / ultra-high voltage power transmission, a plurality of stranded wire layers are stacked and wound, and the cable conductor is
Voids are formed between the wires. Therefore, if water enters the voids of the cable conductor, it will affect the entire long conductor through the voids between the strands, causing a serious problem in the cable. Therefore, in order to prevent the above-mentioned problems from occurring, it has been proposed to fill the internal voids of the stranded conductor with a water-tight compound to form a water-tight conductor.
【０００３】前記水密導体としては、例えば、特公昭６
３−７６４５号公報や、特公昭６３−７６４６号公報等
に示されるようなものが知られている。前記従来例にお
いては、素線の撚線時に、撚線層の間にテープ状の水密
コンパウンドを巻き付けてから外側の撚線層を形成する
ような手段を用いて、各素線の周囲に形成される隙間
に、前記水密コンパウンドを充満させるようにしてい
る。また、前記水密コンパウンドとしては、テープ状の
もの等を用いて撚線層の周囲を被覆し、外側の撚線層を
形成する際に、２つの層の間で水密コンパウンドを圧密
して、各素線の周囲を隙間なく充満させている。したが
って、前記水密材を用いて導体の内部の空隙を埋めるこ
とにより、導体の水密性を良好に発揮させることができ
る。Examples of the watertight conductor include, for example, Japanese Examined Patent Publication No. 6
Those disclosed in Japanese Patent Publication No. 3-7645, Japanese Patent Publication No. 63-7646, and the like are known. In the above-mentioned conventional example, when twisting the strands, a tape-shaped watertight compound is wound between the twisted layers and then formed on the periphery of each strand by using a means for forming the outer twisted layer. The gap is filled with the watertight compound. Further, as the watertight compound, a tape-shaped material or the like is used to cover the periphery of the twisted wire layer, and when the outer twisted wire layer is formed, the watertight compound is compacted between the two layers, The wire is filled around without any gaps. Therefore, by filling the voids inside the conductor with the watertight material, the watertightness of the conductor can be exhibited well.
【０００４】[0004]
【発明が解決しようとする課題】ところが、前記従来例
に示されるような走水防止型導体を製造する場合には、
芯線と第１層目の間、第１層目と第２層目の間……のそ
れぞれに水密材を形成するために、芯線、第１層目の撚
線層、第２層目の撚線層、……の各々の層の周囲に水密
材としてのテープ等を巻き付ける必要がある。そこで、
前述したような走水防止型導体を製造する装置では、従
来の撚線導体の製造装置に対して、テープを各層に巻き
付けるための別の装置を配置する必要があり、導体製造
装置を新たに構成する必要があった。その他の従来例に
おいては、樹脂材料等のような軟質で粘性の高い材料を
撚線の素線の隙間に挿入して、走水防止特性を発揮させ
るようなことも行われている。However, in the case of manufacturing the water-running prevention type conductor as shown in the above-mentioned conventional example,
To form a watertight material between the core wire and the first layer, between the first layer and the second layer, etc., the core wire, the first twisted wire layer, and the second twisted layer It is necessary to wrap a tape or the like as a watertight material around each layer of the wire layer, .... Therefore,
In the apparatus for manufacturing the water-running prevention type conductor as described above, it is necessary to arrange another apparatus for winding the tape around each layer in comparison with the conventional apparatus for manufacturing the twisted wire conductor, and the conductor manufacturing apparatus is newly added. Had to configure. In other conventional examples, a soft and highly viscous material such as a resin material is inserted into the gap between the strands of the stranded wire so as to exert the water running prevention property.
【０００５】前記走水防止型導体においては、導体の素
線の間に水密材が充満された状態にあるために、ケーブ
ルを接続したりする際には、各素線の周囲を充満してい
る水密材を除去してから、ケーブルの接続端末の成形等
を行う必要がある。特に、軟質で粘性の高い樹脂材料を
水密材として用いて、素線の間の隙間を充填しているよ
うなケーブルでは、その樹脂材料を除去して、素線を露
出させるために水密材の除去と素線の清浄化のための手
間が面倒である。したがって、前記走水防止型導体を用
いてケーブル線路を構築する際には、水密材を除去する
手間を多く必要とすること等の理由で、接続部を形成す
るための時間が長くなり、工事が面倒になる等の問題が
あった。Since the water-tight material is filled between the strands of the conductor in the running-prevention-type conductor, when connecting the cables, the surroundings of each strand are filled. After removing the watertight material, it is necessary to mold the cable connection terminal. In particular, in a cable that uses a soft and highly viscous resin material as a watertight material and fills the gaps between the wires, the resin material is removed to expose the wires. It is troublesome to remove and clean the wires. Therefore, when constructing a cable line using the runner-prevention-type conductor, the time for forming the connection portion becomes long due to the fact that it requires a lot of work to remove the watertight material, and the construction work There were problems such as being troublesome.
【０００６】本発明は、前述したような従来の走水防止
型導体の問題を解消するもので、水が入り込んだ時にの
み水密性を発揮できる走水防止型導体を提供すること、
および、従来より使用している装置を大幅に変更するこ
となしに、走水防止型導体を製造する装置を提供するこ
とを目的としている。The present invention solves the above-mentioned problems of the conventional run-away preventive conductors, and provides a run-away preventive conductor capable of exhibiting water-tightness only when water enters.
Another object of the present invention is to provide a device for producing a run-prevention type conductor without significantly changing the device used conventionally.
【０００７】[0007]
【課題を解決するための手段】本発明は、芯線に対して
複数の撚線層を重ねて形成する撚線導体に関する。本発
明の請求項１の発明は、前記芯線と平行に配置する縦紐
部材とを中心にして第１撚線層を重ね、前記第１撚線層
の外周面に前記芯線と平行に配置する縦紐部材と、スパ
イラルに巻回される斜め紐部材とを配置して、前記第１
撚線層の上に第２撚線層を形成し、前記第２撚線層の外
周部には縦紐部材と斜め紐部材とを配置して第３撚線層
を形成し、前記縦紐部材と斜め紐部材とを介して撚線層
を順次重ねて形成することを特徴とする。請求項２の発
明は、前記縦紐部材と斜め紐部材とを、吸水すると膨脹
する性質を有する吸水膨潤体の紐状のものを用いて構成
し、前記撚線層の各層の間に配置する紐状部材により、
導体の各層をブロック状の止水区画として形成すること
を特徴とする。請求項３の発明は、前記撚線層の間に縦
紐部材と斜め紐部材とによる吸水膨潤体を配置したもの
に対して、最外周の撚線層の外周面には絶縁体もしくは
半導電体による被覆が形成され、前記絶縁体もしくは半
導電体が接する撚線層の外周面には、素線の間の凹凸に
対応させて絶縁体もしくは半導電体による止水被覆が形
成されることを特徴とする。請求項４の発明は、前記最
外周の撚線層の外周面に、半導電性の吸水膨潤体を介し
て、絶縁体もしくは半導電体による被覆を設けたことを
特徴とする。SUMMARY OF THE INVENTION The present invention relates to a stranded wire conductor formed by stacking a plurality of stranded wire layers on a core wire. According to a first aspect of the present invention, the first twisted wire layer is stacked around the vertical cord member arranged in parallel with the core wire, and is arranged in parallel to the core wire on the outer peripheral surface of the first twisted wire layer. A vertical cord member and an oblique cord member wound in a spiral are arranged, and the first cord
A second twisted wire layer is formed on the twisted wire layer, and a vertical cord member and a diagonal cord member are arranged on an outer peripheral portion of the second twisted wire layer to form a third twisted wire layer. It is characterized in that the twisted wire layers are sequentially stacked with the member and the diagonal string member interposed therebetween. According to a second aspect of the present invention, the vertical cord member and the diagonal cord member are formed by using a string of a water absorbing and swelling body having a property of expanding when absorbing water, and are arranged between the layers of the twisted wire layer. By the string-shaped member,
It is characterized in that each layer of the conductor is formed as a block-shaped water blocking section. According to a third aspect of the present invention, the water absorption swelling body composed of the vertical cord member and the diagonal cord member is arranged between the twisted wire layers, whereas an insulator or a semiconductive material is provided on the outer peripheral surface of the outermost twisted wire layer. A coating with a body is formed, and a waterproof coating with an insulator or a semi-conductor is formed on the outer peripheral surface of the twisted wire layer in contact with the insulator or the semi-conductor to correspond to the irregularities between the wires. Is characterized by. The invention according to claim 4 is characterized in that the outermost surface of the outermost twisted wire layer is provided with a coating of an insulator or a semi-conductive material via a semi-conductive water-absorption swelling body.
【０００８】本発明の請求項５の発明は、芯線に対して
複数の撚線層を重ねて撚線導体を作成するに際して、芯
線と吸水膨潤体で作成した縦紐部材とを供給する工程
と、前記芯線と縦紐部材とをまとめたものを被覆する状
態で、第１撚線層を形成する工程と、前記第１撚線層の
外周面に縦紐部材と斜め紐部材とによる吸水膨潤体の紐
部材を供給しながら第２撚線層としての撚線層を形成す
る工程と、前記第２撚線層の外周面およびその周囲の撚
線層の間に対して各々縦と斜めの吸水膨潤体を供給しな
がら、その外側面に巻線層を形成する工程とを順次配置
して製造することを特徴とする製造方法である。請求項
６の発明は、前記第１撚線層、第２撚線層およびその外
周部の撚線層を順次形成して走水防止型導体を製造する
に際して、各撚線層を形成するための装置には、前記撚
線層に向けて素線を供給する装置に対して、吸水膨潤体
の紐状部材を供給する手段を配置し、内側の撚線層の外
周面に、外側の撚線層の撚り方向と同一方向の吸水膨潤
体を斜め紐部材として供給することを特徴とする。請求
項７の発明は、前記２つの撚線層の間に配置する斜め紐
部材としての吸水膨潤体を、前記撚線層の形成装置とは
別に配置し、前記斜め紐部材を任意のピッチで螺旋状に
巻き掛けて作成することを特徴とする。According to a fifth aspect of the present invention, a step of supplying a core wire and a vertical string member made of a water-swelling body when a plurality of twisted wire layers are stacked on a core wire to form a stranded wire conductor, A step of forming a first twisted wire layer in a state of covering the bundle of the core wire and the vertical cord member, and water swelling due to the vertical cord member and the diagonal cord member on the outer peripheral surface of the first twisted wire layer A step of forming a twisted wire layer as a second twisted wire layer while supplying a body string member; The manufacturing method is characterized by sequentially arranging a step of forming a winding layer on the outer side surface of the water-swelling body while supplying the water-swelling body. In the invention of claim 6, when the first twisted wire layer, the second twisted wire layer and the twisted wire layer of the outer peripheral portion thereof are sequentially formed to manufacture each runaway preventing conductor, each twisted wire layer is formed. In the device, the means for supplying the strand-shaped member of the water-swelling body is arranged with respect to the device for supplying the strands to the twisted wire layer, and the outer twisted layer is provided on the outer circumferential surface of the inner twisted wire layer. The water absorbing and swelling body in the same direction as the twist direction of the wire layer is supplied as an oblique cord member. According to a seventh aspect of the present invention, a water absorbing swelling body as a diagonal cord member arranged between the two twisted wire layers is arranged separately from the twisted wire layer forming device, and the diagonal cord members are arranged at an arbitrary pitch. It is characterized by being wound in a spiral shape.
【０００９】前述したように、本発明の走水防止型導体
においては、芯線と第１層の撚線層との間、および、第
１層と第２層の撚線層の間、およびその外側の各層の撚
線層の間の各々に、縦紐部材と斜め紐部材とを組み合わ
せた水密材としての吸水膨潤体を配置するので、各層の
撚線を２種類の紐状の水密材によりブロック状に区画し
て走水防止型導体を構成することができる。そして、前
記縦紐部材と斜め紐部材とを、吸水して膨脹する性質を
有する吸水膨潤体の紐状のもので構成することによっ
て、導体の各層をブロック状に区画して構成でき、導体
に水が入った場合に水密材としての吸水膨潤体により止
水性能を発揮させることができる。また、前記紐状部材
は吸水しない状態では、乾燥した紐としての性質を有す
るので、ケーブルを接続する際等には、導体の素線を露
出させて接続部を形成する作業を容易に行うことができ
る。As described above, in the water runaway preventive conductor of the present invention, between the core wire and the first twisted wire layer, between the first twisted wire layer and the second twisted wire layer, and between them. A water absorbing swelling body, which is a combination of a vertical cord member and a diagonal cord member, is arranged between each of the outer layers of the twisted wire layer, so that the twisted wire of each layer is formed by two kinds of string-shaped watertight materials. It is possible to construct a water-running prevention type conductor by dividing into blocks. And, by constructing the vertical cord member and the diagonal cord member in the form of a string of a water absorbing and swelling body having a property of absorbing and expanding water, each layer of the conductor can be divided into blocks and formed into a conductor. When water enters, the water-swelling material as a water-tight material can exert water-stopping performance. In addition, since the string-like member has a property as a dry string in a state where it does not absorb water, when connecting a cable or the like, the work of forming the connection part by exposing the conductor wire is easily performed. You can
【００１０】さらに、本発明の走水防止型導体を製造す
る際には、導体の各撚線層を形成する装置に対して、吸
水膨潤体の斜め紐部材を供給して、スパイラル状に巻き
付ける装置を組み込むことにより、従来のケーブル導体
の製造装置を用いることができる。そして、１つの撚線
層の外周面に斜め紐部材を配置する作業を容易に行い得
るようにして、製造装置の構成を簡素化することが可能
である。また、前記斜め紐部材を撚線層の形成装置と別
体に構成する場合には、斜め紐部材の巻き付けピッチ等
を任意に設定できるので、縦紐部材と斜め紐部材による
止水区画の大きさ等を、任意に設定することが可能にな
る。Further, when manufacturing the run-away preventive conductor of the present invention, the diagonal cord member of the water-swelling body is supplied to the device for forming each twisted wire layer of the conductor and wound in a spiral shape. By incorporating the device, conventional cable conductor manufacturing equipment can be used. Then, the work of disposing the diagonal cord member on the outer peripheral surface of one twisted wire layer can be easily performed, and the configuration of the manufacturing apparatus can be simplified. Further, when the diagonal cord member is configured separately from the twisted wire layer forming device, the winding pitch of the diagonal cord member and the like can be set arbitrarily, so that the size of the water blocking section formed by the vertical cord member and the diagonal cord member can be increased. It is possible to arbitrarily set the size and the like.
【００１１】[0011]
【発明の実施の形態】図示される例にしたがって、本発
明の走水防止型導体を説明する。図１に示す例は、一般
的な撚線導体で構成するケーブルに対して水密材を設け
ている例を示しているもので、走水防止型導体１は芯線
２の外側に、素線４……を撚り合わせた第１撚線層３を
配置し、その第１撚線層３の外側に逆に撚り合わせた素
線６による第２撚線層５を、さらに、その外側に第３撚
線層７を形成し、外周部を絶縁層９により被覆して構成
している。前記ケーブルに配置する吸水膨潤体は、芯線
２に沿わせてケーブルの長さ方向に縦紐部材１１を配置
し、第１撚線層３の外面には１本の縦紐部材１２を芯線
に平行に配置するとともに、第１撚線層の素線の撚り合
わせ方向と逆方向に斜め紐部材１４をスパイラル状に巻
き掛けている。BEST MODE FOR CARRYING OUT THE INVENTION The anti-running conductor of the present invention will be described with reference to the examples shown in the drawings. The example shown in FIG. 1 shows an example in which a watertight material is provided for a cable composed of a general stranded wire conductor. The first twisted wire layer 3 formed by twisting ... is arranged, and the second twisted wire layer 5 composed of the twisted wires 6 is wound on the outside of the first twisted wire layer 3 and the third twisted wire layer 5 is further formed on the outside thereof. The twisted wire layer 7 is formed, and the outer peripheral portion is covered with the insulating layer 9. The water swelling body arranged in the cable has a vertical cord member 11 arranged in the length direction of the cable along the core wire 2, and one vertical cord member 12 is arranged on the outer surface of the first twisted wire layer 3 as a core wire. The diagonal cord members 14 are spirally wound in the direction opposite to the twisting direction of the strands of the first twisted wire layer while being arranged in parallel.
【００１２】また、第２撚線層５の周囲には、芯線２と
平行に１本の縦紐部材１３をケーブルの長さ方向に、第
２撚線層５の素線の撚り合わせ方向と逆方向に斜め紐部
材１５をスパイラル状に巻き掛けている。なお、上記実
施態様においては、芯線２上には縦紐部材１１のみを配
置しているが、これに加えて、斜め紐部材も配置するよ
うにしても良い。そして、前記第２撚線層５の外周部に
逆に撚り合わせた素線８により構成する第３撚線層７を
構成し、前記第３撚線層７の外周部を絶縁層９により被
覆して構成している。ここで、縦紐部材１１、１２、１
３は、専ら素線の撚り溝に沿う走水を防止し、斜め紐部
材１４、１５は専ら撚線層間の隙間からの走水を防止す
る役目を担う。なお、本実施例において、スパイラル状
に巻き付けて配置する斜め紐部材は、直下の撚線層の撚
り方向と逆に巻く必要は必ずしもなく、同方向に巻いて
も良く、また、各撚線層は同方向撚りであっても良い。Around the second twisted wire layer 5, one vertical cord member 13 is provided in parallel with the core wire 2 in the length direction of the cable and in the twisting direction of the strands of the second twisted wire layer 5. The diagonal string member 15 is wound in a spiral shape in the opposite direction. Although only the vertical cord member 11 is arranged on the core wire 2 in the above embodiment, an oblique cord member may be arranged in addition to this. And the 3rd twisted wire layer 7 which comprises the strand 8 which was twisted in the opposite direction to the outer peripheral part of the said 2nd twisted wire layer 5 is comprised, and the outer peripheral part of the said 3rd twisted wire layer 7 is coat | covered with the insulating layer 9. Then configured. Here, the vertical cord members 11, 12, 1
3 exclusively prevents running water along the twisted groove of the strand, and the diagonal cord members 14 and 15 have a function of exclusively preventing running water from the gap between the twisted wire layers. In this embodiment, the diagonal cord member wound and arranged in a spiral shape does not necessarily have to be wound in a direction opposite to the twisting direction of the twisted wire layer directly below, and may be wound in the same direction. May be twisted in the same direction.
【００１３】前記走水防止型導体１に用いる吸水膨潤体
は、吸水することにより膨潤して、止水ブロックとして
の作用を発揮できる材料を使用するもので、例えば、Ｇ
ＥＣＡ−ＴＡＰＥＳ社の製造に係るＧＴＡ６１１（商品
名）を用いることができる。前記吸水膨潤体は、任意の
太さの紐状のものとして構成されたものが販売されてい
るもので、その紐状部材の長いものを縦紐部材または斜
め紐部材として使用する。前記吸水膨潤体は、ケーブル
に組み込む際と、ケーブル導体に水が入り込まない状態
では、吸水膨潤体は乾燥したままであることから、弾性
のある紐状のものの性質を維持する。これに対して、ケ
ーブル導体に水が入り込んだ場合には、水が入った部分
の吸水膨潤体が吸水して膨脹するので、吸水膨潤体の体
積が数十倍に増大して導体の素線の間の隙間を塞ぐ作用
を発揮するので、水が入り込んだ部分の両側の所定の範
囲を、吸水膨潤体が膨脹したもので形成される水密剤に
より封止することができ、他の部分にまで水が流れるこ
とを防止できる。なお、１本の紐状部材のみでは走水を
防止できない場合には、２本または複数本の紐状部材を
平行に、または、撚り合わせて太くしたものを使用する
ことも可能であり、前記特定の商品に代えて、他の同一
の性能を発揮可能な吸水膨潤体材料を用いて紐状部材を
構成することもできる。The water-swelling swelling body used for the water-running prevention type conductor 1 is made of a material which swells by absorbing water and exhibits an action as a water blocking block.
GTA611 (trade name) manufactured by ECA-TAPES can be used. The water-swelling body is commercially available in the form of a string having an arbitrary thickness, and the long string-shaped member is used as a vertical string member or an oblique string member. Since the water-swelling swelling body remains dry when it is incorporated into a cable and when water does not enter the cable conductor, the water-swelling swelling body maintains the property of an elastic string. On the other hand, when water enters the cable conductor, the water swelling body in the water-containing part absorbs water and expands, so that the volume of the water swelling body increases several tens of times and the conductor wire of the conductor increases. Since it exerts the action of closing the gap between the two, it is possible to seal a predetermined range on both sides of the part where water has entered with a watertight agent formed by the expanded water-absorptive body, and to the other part. Water can be prevented from flowing up to. In addition, when running water cannot be prevented by only one string-shaped member, it is possible to use two or more string-shaped members which are parallel or twisted and thickened. Instead of a specific product, the string-shaped member can be formed by using another water-absorbing swelling material capable of exhibiting the same performance.
【００１４】前記走水防止型導体１において、芯線２に
沿わせて配置する縦紐部材１１は、前記芯線２と縦紐部
材１１とをまとめる状態で、その周囲に第１撚線層３の
素線が撚られるので、前記第１撚線層３の素線に押圧さ
れる部分が凹み、素線の間の部分では突部が形成され
る。そして、前記第１撚線層３の内側の撚り溝の螺旋に
対して直線状に横切る状態で、前記縦紐部材１１が締め
付けられ、芯線と第１撚線層の撚線の間に若干の隙間を
持たせて状態で配置される。In the running water preventive conductor 1, the vertical cord member 11 arranged along the core wire 2 has the first twisted wire layer 3 around the core cord 2 and the vertical cord member 11 in a state where the core cord 2 and the vertical cord member 11 are put together. Since the strands are twisted, the portions of the first twisted wire layer 3 that are pressed by the strands are recessed, and the protrusions are formed in the portions between the strands. Then, the vertical cord member 11 is tightened in a state where the vertical cord member 11 is linearly traversed with respect to the spiral of the twist groove inside the first twisted wire layer 3, and a small amount is present between the core wire and the twisted wire of the first twisted wire layer. It is placed in a state with a gap.
【００１５】前記第１撚線層３と第２撚線層５の間に配
置される吸水膨潤体は、第１撚線層３の表面に芯線と平
行に配置される縦紐部材１２と、第１撚線層３の素線の
撚線方向に対して交差するような斜め紐部材１４とを用
いて構成している。前記２種類の吸水膨潤体の外側に、
第２撚線層５の素線６……を撚線として巻き付けて押圧
しているので、前記縦紐部材１２は第１撚線層３の外表
面と第２撚線層５の内表面との間で、２つの層の素線の
撚方向に所定の角度を介して交差する状態となり、２つ
の層の間で交差方向の異なる素線の間に押圧されるよう
に配置される。また、前記斜め紐部材１４は第２撚線層
５の撚線と略平行に配置されるが、第１撚線層３の撚線
の素線の傾き方向に対して交差する方向に配置されてい
るので、第２撚線層５により押圧されて、第１撚線層３
の素線の間の隙間に対応して、凹凸が形成される状態と
なる。The water-swelling swelling body arranged between the first twisted wire layer 3 and the second twisted wire layer 5 is a vertical cord member 12 arranged on the surface of the first twisted wire layer 3 in parallel with the core wire. It is configured by using the diagonal cord member 14 that intersects with the twisting direction of the strands of the first twisted wire layer 3. On the outside of the two types of water-swelling bodies,
Since the strands 6 ... of the second twisted wire layer 5 are wound and pressed as a twisted wire, the vertical cord member 12 has an outer surface of the first twisted wire layer 3 and an inner surface of the second twisted wire layer 5. Between the two layers, the strands of the two layers intersect with each other at a predetermined angle, and the strands are arranged so as to be pressed between the strands of different crossing directions. The diagonal cord members 14 are arranged substantially parallel to the twisted wires of the second twisted wire layer 5, but are arranged in a direction intersecting the tilt direction of the strands of the twisted wires of the first twisted wire layer 3. Therefore, the first twisted wire layer 3 is pressed by the second twisted wire layer 5 and
The unevenness is formed corresponding to the gap between the element wires.
【００１６】前記第１撚線層３と第２撚線層５の間に配
置される吸水膨潤体と同様に、第２撚線層５と第３撚線
層７の間に配置される吸水膨潤体においても、芯線と平
行な縦紐部材１３と第２撚線層５の外表面に、前記第２
撚線層の素線の撚線の方向と交差する斜め紐部材１５と
を配置しているので、２種類の吸水膨潤体が２つの撚線
層の間に押圧された状態で保持される。さらに、前記第
３撚線層の外面に別の撚線層を配置する場合にも、前記
各撚線層と同様に２種類の吸水膨潤体を配置することが
できる。前述したような導体を構成するケーブルにおい
て、前記導体の最外面部には、ポリエチレン等の絶縁材
料で構成する絶縁層または半導電材料で構成する内部半
導電層を押出し形成するが、前記絶縁層９を押出して形
成することにより、第３撚線層７の外面の凹凸を塞ぐ状
態となり、前記最外面の撚線層の外表面には吸水膨潤体
を配置する必要はない。また、最外周の撚線層、即ち第
３の撚線層７の上に、吸水膨潤性の半導電テープの巻回
等で構成される吸水膨潤層を設け、その上に絶縁層もし
くは半導電層を形成するようにしても良い。この場合
に、通常時には前記吸水膨潤層は内部半導電層として機
能し、水が侵入した時は膨脹して走水防止を図ることが
できる。Similar to the water-absorbing swelling body arranged between the first twisted wire layer 3 and the second twisted wire layer 5, water absorption arranged between the second twisted wire layer 5 and the third twisted wire layer 7 Also in the swollen body, the second cord is formed on the outer surface of the vertical cord member 13 and the second twisted wire layer 5 parallel to the core wire.
Since the diagonal cord member 15 that intersects with the twisting direction of the strands of the twisted wire layer is arranged, the two types of water-swelling bodies are held while being pressed between the two twisted wire layers. Further, when another twisted wire layer is arranged on the outer surface of the third twisted wire layer, two kinds of water-swelling bodies can be arranged in the same manner as the above-mentioned twisted wire layers. In the cable forming the conductor as described above, the outermost surface portion of the conductor is formed by extruding an insulating layer made of an insulating material such as polyethylene or an internal semiconductive layer made of a semiconductive material. By extruding 9 to form irregularities on the outer surface of the third twisted wire layer 7, it is not necessary to dispose a water absorbing swelling body on the outer surface of the outermost twisted wire layer. Further, on the outermost stranded wire layer, that is, the third stranded wire layer 7, a water absorption swelling layer formed by winding a water absorption swelling semi-conductive tape or the like is provided, and an insulating layer or a semi-conductive layer is provided thereon. You may make it form a layer. In this case, the water absorbing and swelling layer normally functions as an inner semiconductive layer, and when water enters, it expands to prevent running water.
【００１７】前述したようにして、芯線２に沿わせて配
置する縦紐部材と、各撚線層の表面に撚線の素線の傾斜
方向に交差する斜め紐部材とを配置して構成する走水防
止型導体において、前記走水防止型導体を作成する際に
は、乾燥している紐状の吸水膨潤体を撚線の間に挿入す
ることができる。したがって、導体の各撚線層を形成す
る際に、撚線層を構成する各素線とともに紐状の吸水膨
潤体を繰り出して、縦紐部材と斜め紐部材とを各撚線層
の間等に配置することができる。そして、前述したよう
にして撚線層と一体に吸水膨潤体を組み込んで、走水防
止型導体を作成する場合には、前記吸水膨潤体は乾燥し
ている状態で組み込まれる。また、ケーブルに障害が発
生せずに、走水防止型導体が水に触れない状態でも、吸
水膨潤体は撚線の間の隙間に押圧されているが、その素
線の隙間に完全に入り込まずに、吸水膨潤体と接する素
線の周囲には若干の隙間が形成されている状態にある。As described above, the vertical cord member arranged along the core wire 2 and the diagonal cord member which intersects with the inclined direction of the strand of the twisted wire are arranged on the surface of each twisted wire layer. In the water-running prevention type conductor, a dry string-like water-swelling body can be inserted between the twisted wires when the water-running prevention type conductor is prepared. Therefore, when forming each twisted wire layer of the conductor, a string-shaped water-absorbing swelling body is fed out together with each element wire forming the twisted wire layer, and a vertical string member and an oblique string member are provided between each twisted wire layer, etc. Can be placed at. When the water-absorption swelling body is integrated with the twisted wire layer as described above to form the water-flow prevention type conductor, the water-absorption swelling body is incorporated in a dry state. Even when the water-proof conductor does not come into contact with water without causing any damage to the cable, the water-swelling swelling body is pressed into the gap between the twisted wires, but it completely enters the gap between the strands. Instead, a slight gap is formed around the wire in contact with the water-swelling body.
【００１８】前記走水防止型導体により構成するケーブ
ルに障害が発生して、ケーブル導体にまで水が入り込ん
だ場合には、水が入った部分の吸水膨潤体が吸水して膨
脹するので、吸水膨潤体の体積が数十倍に増大して導体
の素線の間の隙間を塞ぐ作用を発揮する。そして、吸水
することによって吸水膨潤体が膨脹する性質により、各
撚線層の間に配置されている縦紐部材と斜め紐部材の水
に触れたものがそれぞれ膨脹するので、縦紐部材と斜め
紐部材により区画されるブロックとして前記走水防止型
導体を区画して止水性を発揮させ、走水防止型導体の長
い区間に亘って水が流れることを阻止できる。When a cable formed of the water-running prevention type conductor is damaged and water enters the cable conductor, the water-swelling body in the water-containing portion absorbs water and expands. The volume of the swelling body is increased by several tens of times, and it exerts an action of closing the gap between the conductor wires. Then, due to the property that the water-swelling swelling body expands by absorbing water, the vertical cord member and the diagonal cord member disposed between the twisted wire layers expand in contact with water. It is possible to partition the water-running prevention type conductor as a block divided by a string member so as to exhibit water stopping property, and to prevent water from flowing over a long section of the water-running prevention type conductor.
【００１９】また、前記走水防止型導体においては、導
体の各撚線層の間で吸水膨潤体により区画されるブロッ
クでは、縦紐部材と斜め紐部材による区画される位置に
ずれがあるので、１つの層の間で止水性を発揮させて
も、撚線層の素線の隙間を通って別の層の間に水が流通
することもあると考えられる。これに対して、他の撚線
層の間に向けて流れた水は、その撚線層の間に設けられ
ている吸水膨潤体を膨脹させるために、その吸水膨潤体
により別のブロックを区画して止水性を発揮させること
になる。したがって、本発明の実施例に示す走水防止型
導体においては、従来の各撚線層と素線の間を吸水膨潤
体により完全に封止した走水防止型導体とは異なり、導
体に水が入り込んだ時に、その水に接した部分を非常に
狭い範囲で封止することはできないものの、導体の長さ
方向の非常に短い範囲を区画して、水に触れる部分を限
定することによって、長いケーブル全体に障害が発生す
ることを防止できる。Further, in the water run-away type conductor, in the block defined by the water-swelling swelling body between the twisted wire layers of the conductor, there is a deviation in the position defined by the vertical cord member and the diagonal cord member. It is considered that water may flow between the other layers through the gaps between the strands of the twisted wire layer even if the water blocking effect is exhibited between the one layer. On the other hand, the water flowing between the other twisted wire layers divides another block by the water absorbent swelling body in order to expand the water absorbent swelling body provided between the twisted wire layers. Then, the water blocking effect will be exhibited. Therefore, in the running-prevention-type conductor shown in the embodiment of the present invention, unlike the conventional running-prevention-type conductor in which the space between each twisted wire layer and the strand is completely sealed by the water-swelling swelling body, the conductor does not have water. Although it is not possible to seal the part in contact with water in a very narrow range when is entered, by defining a very short range in the length direction of the conductor and limiting the part in contact with water, Prevents failure of the entire long cable.
【００２０】[0020]
【実施例】前記走水防止型導体を製造するためには、図
２に示すような製造装置を用いることができるもので、
前記製造装置２０は従来より撚線導体を製作するための
装置を用い、紐状の吸水膨潤体を撚線層の間に挿入する
機構を組み合わせて構成している。前記製造装置２０に
おいては、ドラム２１から繰り出す芯線２と縦紐部材１
１とを平行に繰り出して、第１撚線層を形成する第１層
形成装置２２に向けて送り、前記第１層形成装置２２に
おいては、素線４の数に対応させて設けたドラム２３…
…から、第１撚線層を構成する素線を繰出し、前記芯線
２と縦紐部材１１に巻き付ける作業を行わせ、第１撚線
層を構成したものを成型機３０に通して成形する。EXAMPLE A manufacturing apparatus as shown in FIG. 2 can be used in order to manufacture the water flow prevention type conductor.
The manufacturing apparatus 20 has conventionally used an apparatus for manufacturing a stranded wire conductor, and is configured by combining a mechanism for inserting a string-shaped water-absorbing swelling body between stranded wire layers. In the manufacturing apparatus 20, the core wire 2 and the vertical cord member 1 fed from the drum 21.
1 and 2 are fed in parallel and sent to a first layer forming device 22 that forms a first twisted wire layer, and in the first layer forming device 22, a drum 23 provided in correspondence with the number of strands 4 is provided. …
From the ..., the strands of wire forming the first twisted wire layer are fed out, the work of winding the core wire 2 and the vertical cord member 11 is performed, and the wire having the first twisted wire layer is passed through a molding machine 30 to be molded.
【００２１】前記成型機３０の下流部には、縦紐部材１
２を供給する手段と第２撚線層５を形成するための第２
層形成装置２４とを配置しており、前記第２層形成装置
２４には斜め紐部材１４を供給するためのドラムを一体
に設けている。前記第２層形成装置２４に配置する斜め
紐部材１４の供給のためのドラムとしては、第２層形成
装置の空いているドラムを用いることができるが、その
ように構成した場合には、第１撚線層の外表面に配置す
る斜め紐部材１４は第２撚線層の素線の撚り方向と同じ
ピッチで、第１撚線層の撚線の撚り方向に対して所定の
角度で交差するものとなる。前記第２層形成装置２４に
より形成される第２撚線層は、成型機３１を通って成形
され、次の第３撚線層の形成工程に向けて送られる。A vertical cord member 1 is provided downstream of the molding machine 30.
Means for supplying 2 and a second for forming the second twisted wire layer 5
The layer forming device 24 is arranged, and the second layer forming device 24 is integrally provided with a drum for supplying the diagonal cord member 14. As the drum for supplying the diagonal cord member 14 arranged in the second layer forming device 24, a vacant drum of the second layer forming device can be used. The diagonal cord members 14 arranged on the outer surface of the first twisted wire layer intersect at the same pitch as the twisted direction of the strands of the second twisted wire layer and at a predetermined angle with respect to the twisted direction of the twisted wire of the first twisted wire layer. It will be done. The second twisted wire layer formed by the second layer forming device 24 is molded through the molding machine 31 and sent to the next step of forming the third twisted wire layer.
【００２２】前記成型機３１の下流部には、前記第２撚
線層を形成する機構と同様に、縦紐部材１３を供給する
手段を介して、第３撚線層の素線８……を供給して撚線
層を形成するための第３層形成装置２６を配置してい
る。前記第３層形成装置２６においても、空いているド
ラムを利用して斜め紐部材１５を供給する機構を設ける
か、あるいは第３層形成装置のドラムと組み合わせて斜
め紐部材を供給するドラムを配置して、素線８……を撚
り合わせた第３撚線層の形成と、斜め紐部材の配置を同
時に行うための装置として構成することができる。そし
て、前記第３層形成装置の下流部には成型機３２を配置
して、撚線層を整形する作業を行い、その走水防止型導
体の外周部に所定の厚さで絶縁体を被覆する絶縁体被覆
装置３３を配置している。At the downstream portion of the molding machine 31, similar to the mechanism for forming the second twisted wire layer, the strands 8 of the third twisted wire layer are supplied through the means for supplying the vertical cord member 13. And a third layer forming device 26 for supplying a liquid and forming a twisted wire layer. Also in the third layer forming apparatus 26, a mechanism for supplying the diagonal cord member 15 using an empty drum is provided, or a drum for supplying the diagonal cord member is arranged in combination with the drum of the third layer forming apparatus. Then, the device can be configured as a device for simultaneously forming the third twisted wire layer in which the wires 8 are twisted together and disposing the diagonal cord member. Then, a molding machine 32 is arranged downstream of the third layer forming device to perform the work of shaping the twisted wire layer, and the outer peripheral portion of the runner-preventive conductor is covered with an insulator with a predetermined thickness. Insulator coating device 33 is installed.
【００２３】前記製造装置２０の実施例においては、第
１撚線層と第２撚線層の外表面に配置する斜め紐部材
を、その外側の撚線層を構成するための装置から繰り出
して、斜めに巻き付ける手段を構成しているが、前記斜
め紐部材を供給しながら斜めに巻き付ける装置を、第２
層形成装置等のドラムとは別体に配置して構成すること
もできる。例えば、前記斜め紐部材を巻き付けるための
装置を、第１層形成装置と第２層形成装置の間、また
は、第２層形成装置と第３層形成装置の間にそれぞれ独
立させて配置する場合には、その斜め紐部材の外側の撚
線層のピッチとは異なるピッチで、斜め紐部材の内側の
撚線層に巻き付けることができる。例えば、斜め紐部材
の巻き付けピッチを外側の撚線層のピッチと異ならせる
場合には、縦紐部材と組み合わせた吸水膨潤体により導
体を止水ブロックとして区画するに際して、そのブロッ
クの大きさを任意に形成できる。そして、走水防止型導
体に水が侵入した際に、その吸水膨潤体により区画され
るブロックの範囲内で、止水範囲を任意に設定すること
が可能になり、導体に水が入り込んだ場合にも損傷を受
ける導体の範囲を狭く限定させることも可能である。In the embodiment of the manufacturing apparatus 20, the diagonal cord members arranged on the outer surfaces of the first twisted wire layer and the second twisted wire layer are fed out from the apparatus for forming the outer twisted wire layer. And a device for wrapping diagonally, the device for wrapping diagonally while supplying the diagonal cord member is
It may be arranged separately from the drum of the layer forming device. For example, when the device for winding the diagonal cord member is separately arranged between the first layer forming device and the second layer forming device or between the second layer forming device and the third layer forming device. Can be wound around the twisted wire layer inside the diagonal cord member at a pitch different from the pitch of the twisted wire layer outside the diagonal cord member. For example, when the winding pitch of the diagonal cord member is made different from the pitch of the outer twisted wire layer, the size of the block can be arbitrarily set when the conductor is divided as a water blocking block by the water swelling body combined with the vertical cord member. Can be formed into Then, when water enters the runner-prevention type conductor, it becomes possible to arbitrarily set the water stop range within the range of the block defined by the water absorbing and swelling body, and when water enters the conductor. However, it is also possible to narrow the range of conductors that are damaged.
【００２４】[0024]
【実施例２】前記走水防止型導体を、６６ｋＶ、５００
mm2 のケーブルに適用して作成した。この走水防止型導
体において、導体を３層の撚線層で構成し、紐状部材と
してはオランダＧＥＣＡ−ＴＡＰＥＳ社の製造にかかる
ＧＴＡ１０の紐状のものを使用した。[Embodiment 2] The running water preventive conductor is set to 66 kV, 500
Created by applying it to a mm 2 cable. In this run-through prevention type conductor, the conductor was composed of three twisted wire layers, and the string-shaped member was the string-shaped GTA10 manufactured by GECA-TAPES of the Netherlands.
【００２５】走水防止型導体の製造条件：
中芯 ：芯線と１本の縦紐部材の２本添え
第１撚線層：撚線層の外周に縦紐部材と斜め紐部材とを
１本ずつ
第２撚線層：撚線層の外周に縦紐部材と斜め紐部材とを
１本ずつ
第３撚線層：外周部に吸水膨潤性半導電テープの巻回層
を介して絶縁層被覆
また、前記斜め紐部材は、撚線導体の各層ともに、内部
の撚線層の撚り方向に交差する方向に、１００mmのピッ
チでスパイラル状に巻き掛け、内部の撚線層に対して斜
め紐部材が交差するように設ける。Manufacturing conditions for running-prevention-type conductor: Core: Two core wires and one vertical cord member attached. First twisted wire layer: One vertical cord member and one diagonal cord member on the outer circumference of the twisted wire layer. Second twisted wire layer: One vertical cord member and one diagonal cord member are provided on the outer circumference of the twisted wire layer. Third twisted wire layer: The outer peripheral portion is covered with an insulating layer via a winding layer of a water-swellable semiconductive tape. Further, the diagonal cord member is spirally wound with each layer of the stranded wire conductor in a direction intersecting the twisting direction of the internal stranded wire layer at a pitch of 100 mm, and the diagonal woven cord member with respect to the internal stranded wire layer. Are installed so that they intersect.
【００２６】そして、前記ケーブルに対して透水試験を
行ったところが、水漏れの発生はなく、吸水膨潤体によ
り区画されたブロックの浸水した部分の他には、導体の
内部に水が走水することはなかった。また、前記紐状部
材に対して撚線層を形成する装置において、撚り作用を
付与しながら紐状部材を供給する場合でも、その撚作用
により断線することはなく、２〜３ｋｇｆ程度の張力を
付与しても、切断されることはなかった。When a water permeability test was conducted on the cable, no water leakage occurred, and water was run inside the conductor in addition to the flooded portion of the block defined by the water swelling body. It never happened. Further, in the apparatus for forming a twisted wire layer on the string-like member, even when the string-like member is supplied while imparting a twisting action, the twisting action does not cause disconnection, and a tension of about 2 to 3 kgf is applied. When applied, it was not cut.
【００２７】[0027]
【発明の効果】前述したように、本発明の走水防止型導
体においては、芯線と第１層の撚線層との間、および、
第１層と第２層の撚線層の間、およびその外側の各層の
撚線層の間の各々に、縦紐部材と斜め紐部材とを組み合
わせた吸水膨潤体を配置するので、各層の撚線を２種類
の吸水膨潤体によりブロック状に区画して走水防止型導
体を構成することができる。そして、前記縦紐部材と斜
め紐部材とを、吸水して膨脹する性質を有する材料の紐
状のもので構成することにより、導体の各層をブロック
状に区画したものとして構成でき、導体に水が入った場
合に吸水膨潤体が膨脹することにより止水性能を発揮さ
せることができる。また、前記紐状部材は吸水しない状
態では、乾燥した紐としての性質を有するので、ケーブ
ルを接続する際等には、導体の素線を露出させて接続部
を形成する作業を容易に行うことができる。As described above, in the runoff preventive conductor of the present invention, between the core wire and the first twisted wire layer, and
Since the water-swelling swelling body in which the vertical cord member and the diagonal cord member are combined is arranged between each of the first and second twisted wire layers and between each of the outer twisted wire layers thereof, The stranded wire can be divided into blocks by two types of water-swelling swelling bodies to form a running prevention type conductor. Further, the vertical cord member and the diagonal cord member are constituted by a cord-shaped material made of a material having a property of absorbing water and expanding, whereby each layer of the conductor can be configured as a block-shaped partition, and When water is contained, the water-swelling swelling body expands so that the water-stopping performance can be exhibited. In addition, since the string-like member has a property as a dry string in a state where it does not absorb water, when connecting a cable or the like, the work of forming the connection part by exposing the conductor wire is easily performed. You can
【００２８】さらに、本発明の走水防止型導体を製造す
る際には、導体の各撚線層を形成する装置に対して、斜
め紐部材を供給して巻き付ける装置を組み込むことによ
り、従来のケーブル導体の製造装置を用いることができ
る。そして、１つの撚線層の外周面に斜め紐部材を配置
する作業を容易に行い得るようにして、製造装置の構成
を簡素化することが可能である。また、前記斜め紐部材
を撚線層の形成装置と別体に構成する場合には、斜め紐
部材の巻き付けピッチ等を任意に設定できるので、縦紐
部材と斜め紐部材による止水区画の大きさ等を、任意に
設定することが可能になる。Further, when manufacturing the run-away preventive conductor of the present invention, by incorporating a device for supplying and winding an oblique cord member to the device for forming each twisted wire layer of the conductor, the conventional method can be used. A cable conductor manufacturing apparatus can be used. Then, the work of disposing the diagonal cord member on the outer peripheral surface of one twisted wire layer can be easily performed, and the configuration of the manufacturing apparatus can be simplified. Further, when the diagonal cord member is configured separately from the twisted wire layer forming device, the winding pitch of the diagonal cord member and the like can be set arbitrarily, so that the size of the water blocking section formed by the vertical cord member and the diagonal cord member can be increased. It is possible to arbitrarily set the size and the like.
【図１】 本発明の走水防止型導体の構成を示す説明図
である。FIG. 1 is an explanatory diagram showing a configuration of a water running prevention type conductor of the present invention.
【図２】 走水防止型導体を製造する装置の説明図であ
る。FIG. 2 is an explanatory diagram of an apparatus for manufacturing a water-running prevention conductor.
１ ケーブル、 ２ 芯線、 ３ 第１撚線層、
５ 第２撚線層、７ 第３撚線層、 ９ 絶縁
層、 １１〜１３ 縦紐部材、１４・１５ 斜め紐
部材、 ２０ 製造装置、 ２１ 素線ドラム、２
２・２４・２６ ドラム群、 ３０〜３２ 成型
機、３３ 絶縁体被覆装置。1 cable, 2 core wire, 3 first stranded wire layer,
5 2nd twisted wire layer, 7 3rd twisted wire layer, 9 insulating layer, 11-13 vertical cord member, 14/15 diagonal cord member, 20 manufacturing apparatus, 21 strand wire drum, 2
2.24.26 drum group, 30-32 molding machine, 33 insulator coating device.
フロントページの続き (56)参考文献 特開 平６−84412（ＪＰ，Ａ) 特開 平８−335411（ＪＰ，Ａ) 特開 平４−19914（ＪＰ，Ａ) 実開 昭63−77217（ＪＰ，Ｕ) 実開 平６−7115（ＪＰ，Ｕ) (58)調査した分野(Int.Cl.7，ＤＢ名) H01B 7/282 H01B 13/02 Continuation of the front page (56) Reference JP-A-6-84412 (JP, A) JP-A-8-335411 (JP, A) JP-A-4-19914 (JP, A) Actual development Sho 63-77217 (JP , U) Actual Kaihei 6-7115 (JP, U) (58) Fields investigated (Int.Cl. 7 , DB name) H01B 7/282 H01B 13/02
Claims (7)
する撚線導体において、 前記芯線と平行に配置する縦紐部材とを中心にして第１
撚線層を重ね、 前記第１撚線層の外周面に前記芯線と平行に配置する縦
紐部材と、スパイラルに巻回される斜め紐部材とを配置
して、前記第１撚線層の上に第２撚線層を形成し、 前記第２撚線層の外周部には縦紐部材と斜め紐部材とを
配置して第３撚線層を形成し、前記縦紐部材と斜め紐部
材とを介して撚線層を順次重ねて形成することを特徴と
する走水防止型導体。1. A twisted wire conductor formed by stacking a plurality of twisted wire layers on a core wire, the first string being centered on a vertical cord member arranged in parallel with the core wire.
The twisted wire layers are overlapped with each other, and a vertical cord member arranged parallel to the core wire and an oblique cord member wound spirally are arranged on the outer peripheral surface of the first twisted wire layer to form the first twisted wire layer. A second twisted wire layer is formed on the second twisted wire layer, and a vertical cord member and a diagonal cord member are arranged on an outer peripheral portion of the second twisted wire layer to form a third twisted wire layer. A runner-prevention-type conductor, characterized in that a twisted wire layer is sequentially laminated through a member.
ると膨脹する性質を有する吸水膨潤体の紐状のものを用
いて構成し、前記撚線層の各層の間に配置する紐状部材
により、導体の各層をブロック状の止水区画として形成
することを特徴とする請求項１に記載の走水防止型導
体。2. A string-like structure in which the vertical string member and the diagonal string member are formed by using a string-like absorbent swelling body having a property of expanding when absorbing water, and arranged between the twisted wire layers. The water-running prevention type conductor according to claim 1, wherein each layer of the conductor is formed as a block-shaped water-stop section by the member.
とによる吸水膨潤体を配置したものに対して、最外周の
撚線層の外周面には絶縁体もしくは半導電体による被覆
が形成され、 前記絶縁体もしくは半導電体が接する撚線層の外周面に
は、素線の間の凹凸に対応させて絶縁体もしくは半導電
体による止水被覆が形成されることを特徴とする請求項
１または２に記載の走水防止型導体。3. A water absorbent swelling body composed of a vertical cord member and a diagonal cord member is arranged between the twisted wire layers, whereas an outer circumference of the outermost twisted wire layer is made of an insulating material or a semiconductive material. A coating is formed, and a waterproof coating made of an insulating material or a semi-conductive material is formed on the outer peripheral surface of the twisted wire layer in contact with the insulating material or the semi-conductive material so as to correspond to the unevenness between the wires. The runner-prevention type conductor according to claim 1 or 2.
性の吸水膨潤体を介して、絶縁体もしくは半導電体によ
る被覆を設けたことを特徴とする請求項１または２に記
載の走水防止型導体。4. The outer peripheral surface of the outermost stranded wire layer is covered with an insulating material or a semiconductive material via a semiconductive water absorbing and swelling material. The water running prevention type conductor described.
導体を作成するに際して、 芯線と吸水膨潤体で作成した縦紐部材とを供給する工程
と、 前記芯線と縦紐部材とをまとめたものを被覆する状態
で、第１撚線層を形成する工程と、 前記第１撚線層の外周面に吸水膨潤体で作成した縦紐部
材と斜め紐部材を供給しながら第２撚線層としての撚線
層を形成する工程と、 前記第２撚線層の外周面およびその周囲の撚線層の間に
対して各々縦と斜めの吸水膨潤体の紐部材を供給しなが
ら、その外側面に巻線層を形成する工程とを順次配置し
て製造することを特徴とする走水防止型導体の製造方
法。5. A step of supplying a core wire and a vertical cord member made of a water-swelling body when laminating a plurality of twisted wire layers on a core wire to form a stranded conductor, and the core wire and the vertical cord member. A step of forming a first twisted wire layer in a state of covering the above, and a second step while supplying a vertical cord member and a diagonal cord member made of a water-swelling body to the outer peripheral surface of the first twisted wire layer. A step of forming a twisted wire layer as a twisted wire layer, and supplying a string member of a water-absorption swelling body that is vertical and oblique between the outer circumferential surface of the second twisted wire layer and the surrounding twisted wire layer. And a step of forming a winding layer on the outer side surface thereof are sequentially arranged for manufacturing.
外周部の撚線層を順次形成して走水防止型導体を製造す
るに際して、 各撚線層を形成するための装置には、前記撚線層に向け
て素線を供給する装置に対して、吸水膨潤体の紐状部材
を供給する手段を配置し、内側の撚線層の外周面に、外
側の撚線層の撚り方向と同一方向の吸水膨潤体を斜め紐
部材として供給することを特徴とする請求項５に記載の
走水防止型導体の製造方法。6. An apparatus for forming each twisted wire layer when manufacturing a run-away preventive conductor by sequentially forming the first twisted wire layer, the second twisted wire layer and the twisted wire layer on the outer periphery thereof. Is provided with means for supplying a cord-like member of the water-swelling body to the device for supplying the strands toward the twisted wire layer, and the outer twisted wire layer is provided on the outer peripheral surface of the inner twisted wire layer. The method for producing a water-running prevention type conductor according to claim 5, wherein the water-swelling body in the same direction as the twist direction is supplied as an oblique cord member.
部材としての吸水膨潤体を、前記撚線層の形成装置とは
別に配置し、前記斜め紐部材を任意のピッチで螺旋状に
巻き掛けて作成することを特徴とする請求項５または６
に記載の走水防止型導体の製造方法。7. A water-absorbing swelling body as a diagonal cord member arranged between the two twisted wire layers is arranged separately from the twisted wire layer forming device, and the diagonal cord member is spiraled at an arbitrary pitch. It is made by wrapping it around a sheet.
A method for producing a water-running prevention type conductor as described in.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP33942897A JP3512997B2 (en) | 1997-11-25 | 1997-11-25 | Water running prevention type conductor and method of manufacturing the same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP33942897A JP3512997B2 (en) | 1997-11-25 | 1997-11-25 | Water running prevention type conductor and method of manufacturing the same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH11162264A JPH11162264A (en) | 1999-06-18 |
| JP3512997B2 true JP3512997B2 (en) | 2004-03-31 |
Family
ID=18327382
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP33942897A Expired - Fee Related JP3512997B2 (en) | 1997-11-25 | 1997-11-25 | Water running prevention type conductor and method of manufacturing the same |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3512997B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101734313B1 (en) * | 2016-10-20 | 2017-05-12 | 서울전선 주식회사 | Stranding apparatus for water-tightness cable and manufacturing method using the same |
-
1997
- 1997-11-25 JP JP33942897A patent/JP3512997B2/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101734313B1 (en) * | 2016-10-20 | 2017-05-12 | 서울전선 주식회사 | Stranding apparatus for water-tightness cable and manufacturing method using the same |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH11162264A (en) | 1999-06-18 |
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