JP2020107477A - cable - Google Patents

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JP2020107477A
JP2020107477A JP2018244775A JP2018244775A JP2020107477A JP 2020107477 A JP2020107477 A JP 2020107477A JP 2018244775 A JP2018244775 A JP 2018244775A JP 2018244775 A JP2018244775 A JP 2018244775A JP 2020107477 A JP2020107477 A JP 2020107477A
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core wires
cable
core
wire
current
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祐介 坂井
Yusuke Sakai
祐介 坂井
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Tokyo Cosmos Electric Co Ltd
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Tokyo Cosmos Electric Co Ltd
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Abstract

To provide a cable having uniform twist pitch for core wires and uniform conductor spacing.SOLUTION: A cable 100 of the present invention includes a plurality of core wires 10 and an interposing thread 20 twisted together with the core wires 10. When a predetermined current is simultaneously passed through the core wires 10 in a state where the core wires 10 and the interposing thread 20 are twisted together, the interposing thread 20 restricts a movement distance of individual parts of the core wires 10 under a force applied to the core wires 10 due to the current.SELECTED DRAWING: Figure 1

Description

本発明は、信号伝送等に用いられるケーブルに関する。 The present invention relates to a cable used for signal transmission and the like.

信号を伝送するためのケーブルとして、ノイズを低減するために２本以上の芯線を撚り合わせた撚り線を用いたケーブルが普及している。撚り線は、一般に撚線機を用いて製造される。このようなケーブルは、例えば特許文献１等に開示されている。 As a cable for transmitting a signal, a cable using a twisted wire in which two or more core wires are twisted in order to reduce noise is widely used. The stranded wire is generally manufactured using a stranded wire machine. Such a cable is disclosed in, for example, Patent Document 1 and the like.

特開２０１５−１４９２６２号公報JP, 2005-149262, A

撚線機を用いて撚り線を製造しても、製造工程において芯線の撚りピッチや線間距離等が不均一となることがある。このように撚りピッチや線間距離等が不均一であった場合、ケーブルの特性インピーダンスも不均一となり、伝送ロスが発生してしまう。 Even if a twisted wire is manufactured using a twisting machine, the twisting pitch of the core wire, the distance between the wires, and the like may become uneven in the manufacturing process. When the twist pitch, the inter-wire distance, etc. are non-uniform in this way, the characteristic impedance of the cable also becomes non-uniform, resulting in transmission loss.

本発明は、芯線の撚りピッチや線間距離が均一であるケーブルを提供することを目的とする。 An object of the present invention is to provide a cable in which the twist pitch of the core wires and the distance between the wires are uniform.

上記目的を達成するために、本発明のケーブルは、複数の芯線と、前記複数の芯線とともに撚り合わされる介在物と、を備え、前記複数の芯線と前記介在物とが撚り合わされた状態で所定の電流が前記複数の芯線に同時に流されたとき、前記介在物は、前記電流に起因して前記複数の芯線に掛かる力による、前記複数の芯線の各部の移動距離を規制する。 In order to achieve the above object, the cable of the present invention includes a plurality of core wires and an inclusion that is twisted together with the plurality of core wires, and the plurality of core wires and the inclusion are predetermined in a twisted state. When the electric current of 1 is simultaneously applied to the plurality of core wires, the inclusions regulate the movement distance of each part of the plurality of core wires due to the force applied to the plurality of core wires due to the electric current.

本発明によれば、芯線の撚りピッチや線間距離を均一にすることができる。 According to the present invention, the twist pitch of the core wire and the distance between the wires can be made uniform.

本発明の実施の形態に係るケーブルの構成を示す断面図Sectional drawing which shows the structure of the cable which concerns on embodiment of this invention. シースを省略した状態のケーブルの側面図Side view of cable without sheath 平行な２本の導線に流れる電流によって導線に掛かる力について説明するための図The figure for demonstrating the force applied to the conductor by the electric current which flows into two parallel conductors.

以下、本発明の実施の形態について、図面を参照しながら説明する。 Embodiments of the present invention will be described below with reference to the drawings.

［構造］
図１は、本発明の実施の形態に係るケーブル１００の構成を示す断面図である。図１に示すように、ケーブル１００は、２本の芯線１０と、２本の介在糸２０と、シース３０と、を有する。 [Construction]
FIG. 1 is a sectional view showing a configuration of a cable 100 according to an embodiment of the present invention. As shown in FIG. 1, the cable 100 has two core wires 10, two interposition threads 20, and a sheath 30.

芯線１０は、導体１１と、絶縁体１２と、を有する。導体１１は、導電率の高い金属（銅、アルミニウム、銅合金、アルミニウム合金等）で構成される。絶縁体１２は、樹脂等の絶縁体であって、導体１１を周囲から絶縁する。すなわち、芯線１０は、絶縁電線である。本発明において、導体１１は単線であってもよいし、複数の導体を撚り合わせた撚り線であってもよい。２本の芯線１０は、互いに撚り合わされて、撚り対線（ツイストペアケーブル）を構成している。 The core wire 10 has a conductor 11 and an insulator 12. The conductor 11 is made of a metal having high conductivity (copper, aluminum, copper alloy, aluminum alloy, etc.). The insulator 12 is an insulator such as resin and insulates the conductor 11 from the surroundings. That is, the core wire 10 is an insulated wire. In the present invention, the conductor 11 may be a single wire or a stranded wire in which a plurality of conductors are twisted together. The two core wires 10 are twisted with each other to form a twisted pair wire (twisted pair cable).

本実施の形態では、図２に示すように、２本の介在糸２０が、２本の芯線１０とともに撚り合わされている。図２は、シース３０を省略した状態のケーブル１００の側面図である。図２では、説明の都合上、芯線１０の一端（図２における上端）の絶縁体１２が剥がされ、導体１１が露出した状態が示されている。 In the present embodiment, as shown in FIG. 2, the two intervening yarns 20 are twisted together with the two core wires 10. FIG. 2 is a side view of the cable 100 with the sheath 30 omitted. For convenience of description, FIG. 2 shows a state in which the insulator 12 at one end (upper end in FIG. 2) of the core wire 10 is peeled off and the conductor 11 is exposed.

介在糸２０は、２本の芯線１０とシース３０との隙間を埋めるとともに、ケーブル１００の強度を向上させる役割を果たす。さらに、介在糸２０は、ケーブル１００に対して、２本の芯線１０の撚りピッチ及び線間距離を調整する工程（詳細は後述）が実行される際に、２本の芯線１０の移動量を規制することで、撚りピッチ及び線間距離を均一にする役目を果たす。なお、芯線１０の撚りピッチとは、芯線１０が撚られた状態で、周方向において同じ位置となる芯線１０の、長手方向に沿った間隔を意味する。このように芯線１０の移動を規制するため、介在糸２０は、高強度、高耐久性、高耐熱性、絶縁性等の各種性質を有する素材で構成されることが好適である。そのような素材の例として、例えばアラミド繊維が挙げられる。 The intervening thread 20 fills a gap between the two core wires 10 and the sheath 30, and plays a role of improving the strength of the cable 100. Further, the interposition yarn 20 controls the movement amount of the two core wires 10 when the step of adjusting the twist pitch and the inter-wire distance of the two core wires 10 with respect to the cable 100 (details will be described later). By controlling, it plays the role of making the twist pitch and the distance between wires uniform. The twist pitch of the core wire 10 means a space along the longitudinal direction between the core wires 10 that are in the same position in the circumferential direction when the core wires 10 are twisted. In order to regulate the movement of the core wire 10 in this way, the interposition yarn 20 is preferably made of a material having various properties such as high strength, high durability, high heat resistance, and insulation. Examples of such a material include aramid fiber.

シース３０は、互いに撚り合わされた２本の芯線１０及び２本の介在糸２０を被覆する外被である。シース３０の素材については特に限定されないが、耐熱性が高い素材であることが好適である。その理由については後述する。 The sheath 30 is a jacket that covers the two core wires 10 and the two intervening threads 20 that are twisted together. The material of the sheath 30 is not particularly limited, but a material having high heat resistance is suitable. The reason will be described later.

［製造方法］
本実施の形態に係るケーブル１００の製造方法について説明する。ケーブル１００の製造方法は、２本の芯線１０及び２本の介在糸を撚り合わせる工程１と、撚り合わせた芯線１０及び介在糸２０にシース３０を被せる工程２と、撚り合わされた芯線１０の撚りピッチ及び線間距離を調整する工程３と、を含む。 [Production method]
A method of manufacturing the cable 100 according to this embodiment will be described. The manufacturing method of the cable 100 includes a step 1 of twisting two core wires 10 and two interposing yarns, a step 2 of covering the twisted core wires 10 and the interposing yarn 20 with a sheath 30, and twisting of the twisted core wires 10. Step 3 of adjusting the pitch and the distance between lines.

ケーブル１００の製造方法に含まれる工程１及び工程２については、従来知られた方法を適宜採用することができる。例えば、工程１では、２本の芯線１０及び２本の介在糸２０は、撚線機等を用いて撚り合わされる。また、工程２では、シース３０は、樹脂の押出機等を用いて芯線１０及び介在糸２０に被覆される。 For the steps 1 and 2 included in the method of manufacturing the cable 100, conventionally known methods can be appropriately adopted. For example, in step 1, the two core wires 10 and the two intervening yarns 20 are twisted together using a twisting machine or the like. In step 2, the sheath 30 is covered with the core wire 10 and the interposition yarn 20 by using a resin extruder or the like.

以下では、撚り合わせた芯線１０の撚りピッチ及び線間距離を調整する工程３について詳細に説明する。 Below, the process 3 which adjusts the twist pitch and the distance between wires of the twisted core wire 10 is demonstrated in detail.

［撚りピッチ及び線間距離を調整する工程の説明］
工程１において、上記したように撚線機を用いて芯線１０及び介在糸２０を撚り合わせた場合でも、２本の芯線１０の撚りピッチや線間距離が不均一となることがある。工程３では、このように工程１で生じた、２本の芯線１０の撚りピッチ及び線間距離の歪みを調整することが行われる。 [Explanation of process for adjusting twist pitch and inter-wire distance]
Even in the case where the core wire 10 and the interposition yarn 20 are twisted together by using the twisting machine in the step 1 as described above, the twisting pitch and the distance between the two core wires 10 may become uneven. In the step 3, the distortion of the twist pitch and the distance between the wires of the two core wires 10 generated in the step 1 is adjusted.

具体的には、工程３では、ケーブル１００の２本の芯線１０に、互いに反対方向に流れる電流が流される。これにより、互いに離れる方向の力が芯線１０に生じる。また、工程１及び２で製造されるケーブル１００の長さは、例えば数百メートル以上等非常に長い場合があり、そのような場合には、工程３が実行される前に、ケーブル１００は適宜の長さ（例えば１メートル程度）や製品として要求される長さに切断されることが好適である。 Specifically, in step 3, electric currents flowing in opposite directions are applied to the two core wires 10 of the cable 100. As a result, a force in a direction in which the core wires 10 separate from each other is generated. In addition, the length of the cable 100 manufactured in steps 1 and 2 may be very long, for example, several hundred meters or more. In such a case, the cable 100 may be appropriately formed before step 3 is performed. It is suitable to cut into the length (for example, about 1 meter) or the length required for the product.

図３は、平行な２本の導線４１，４２に流れる電流によって導線に掛かる力について説明するための図である。導線４１，４２は、十分な長さを有するものとする。導線４１には図３における上向きの電流Ｉ１が流れ、導線４２には下向きの電流Ｉ２が流れるとする。この場合、２本の導線４１，４２は、流れる電流により、互いに離れる方向に力Ｆ１１，Ｆ１２を受ける。その力の大きさは、以下の式（１）で示される。 FIG. 3 is a diagram for explaining the force applied to the conductive wires by the currents flowing through the two parallel conductive wires 41 and 42. The conductors 41 and 42 have a sufficient length. It is assumed that the upward current I 1 in FIG. 3 flows through the conducting wire 41 and the downward current I 2 flows through the conducting wire 42. In this case, the two conducting wires 41 and 42 receive the forces F 11 and F 12 in the directions away from each other due to the flowing current. The magnitude of the force is shown by the following equation (1).

Figure 2020107477
Figure 2020107477

式（１）において、Ｆ１１は導線４１の長さＬの部位が電流Ｉ２から受ける力の大きさ、Ｆ１２は導線４２の長さＬの部位が電流Ｉ１から受ける力の大きさ、μ０は真空の透磁率、ｒは導線４１，４２間の距離である。 In the equation (1), F 11 is the magnitude of the force that the portion of the conductor wire 41 having the length L receives from the current I 2 , and F 12 is the magnitude of the force that the portion of the conductor wire 42 having the length L receives from the current I 1 . μ 0 is the magnetic permeability of vacuum, and r is the distance between the conductive wires 41 and 42.

図３では平行な２本の導線について示したが、本実施の形態に掛かるケーブル１００の撚られている２本の芯線１０においても、微少な各部位については同様の考え方を適用することができる。すなわち、ケーブル１００の２本の芯線１０に互いに反対方向に流れる電流が流されると、２本の芯線１０の各部位には、互いに離れる方向の力が掛かる。しかしながら、ケーブル１００では、２本の芯線１０とともに介在糸２０が撚り合わされている。このため、２本の芯線１０の各部位が、電流によって生じる力によって互いに離れようとしても、介在糸２０の存在のために、ある程度の距離（所定距離）よりも移動することができない。換言すれば、介在糸２０は、２本の芯線１０の各部位の移動距離を規制する役割を果たしている。 Although FIG. 3 shows two parallel conductors, the same idea can be applied to each minute portion of the two twisted core wires 10 of the cable 100 according to the present embodiment. .. That is, when the currents flowing in the opposite directions are applied to the two core wires 10 of the cable 100, the respective parts of the two core wires 10 are applied with a force in a direction away from each other. However, in the cable 100, the interposition yarn 20 is twisted together with the two core wires 10. Therefore, even if the respective portions of the two core wires 10 try to separate from each other due to the force generated by the electric current, the presence of the interposition yarn 20 prevents them from moving beyond a certain distance (predetermined distance). In other words, the interposition yarn 20 plays a role of controlling the moving distance of each part of the two core wires 10.

なお、所定距離の大きさは、芯線１０の太さ、介在糸２０の太さ、及び撚り数（単位長さあたりの撚りの回数）等によって決定される。 The size of the predetermined distance is determined by the thickness of the core wire 10, the thickness of the interposition yarn 20, the number of twists (the number of twists per unit length), and the like.

２本の芯線１０に流された電流によって、２本の芯線の各部位が所定距離だけ移動した状態とは、一方の芯線１０の各部位の位置が、他の芯線１０の各部位の位置に対して最大限に離れた状態である。従って、芯線１０の各部位がこのような位置にあるとき、２本の芯線１０の線間距離は均一であると言える。また、２本の芯線１０の線間距離が均一である場合、２本の芯線１０の撚りの歪みが解消され、撚りピッチも均一となる。従って、上記のように２本の芯線１０に電流を流す工程３により、２本の芯線１０の撚りピッチ及び線間距離を均一に調整することができる。 The state in which the respective parts of the two core wires 10 are moved by a predetermined distance by the electric currents applied to the two core wires 10 means that the positions of the parts of one core wire 10 are the positions of the parts of the other core wire 10. In contrast, they are at the maximum distance. Therefore, when each part of the core wire 10 is in such a position, it can be said that the distance between the two core wires 10 is uniform. Further, when the distance between the two core wires 10 is uniform, the twisting distortion of the two core wires 10 is eliminated, and the twist pitch becomes uniform. Therefore, as described above, the twisting pitch and the inter-wire distance of the two core wires 10 can be uniformly adjusted by the step 3 of passing the current through the two core wires 10.

このように、２本の芯線１０に電流を流して２本の芯線１０の各部位を所定距離移動させ、２本の芯線１０の撚りピッチや線間距離を均一にするためには、各芯線１０に掛かる力はできるだけ大きいことが好適である。一方で、芯線１０を構成する導体１１には、その断面積や材質等によって、流すことができる最大の電流が決まっている。具体的には、導体１１に対して流される電流の値は、電流によって上昇する導体１１の温度があらかじめ設定された最高許容温度を越えないように設定される。例えば導体１１が銅線である場合、最高許容温度は約２００℃である。なお、シース３０が耐熱性の高い素材で形成されることが好適であるのは、このように電流を流した際に芯線１０の温度が上昇するからである。 In this way, in order to make the twisting pitch and the inter-wire distance of the two core wires 10 uniform by causing current to flow through the two core wires 10 and moving each part of the two core wires 10 by a predetermined distance. The force exerted on 10 is preferably as great as possible. On the other hand, the maximum current that can flow in the conductor 11 that constitutes the core wire 10 is determined by its cross-sectional area, material, and the like. Specifically, the value of the current passed through the conductor 11 is set so that the temperature of the conductor 11 that is increased by the current does not exceed the preset maximum allowable temperature. For example, when the conductor 11 is a copper wire, the maximum allowable temperature is about 200°C. The sheath 30 is preferably made of a material having high heat resistance because the temperature of the core wire 10 rises when a current is applied in this way.

工程３においては、２本の芯線１０の撚りピッチや線間距離を均一にするために、２本の芯線１０に瞬時の大電流を流せばよい。従って、工程３において２本の芯線１０に流す電流の大きさは、芯線１０を構成する導体１１の瞬時許容電流と等しい大きさに設定されるのが好適である。なお、瞬時許容電流とは、短絡故障時等の瞬時に流れても許容される電流量である。 In step 3, in order to make the twisting pitch and the inter-wire distance of the two core wires 10 uniform, an instantaneous large current may be applied to the two core wires 10. Therefore, it is preferable that the magnitude of the current flowing through the two core wires 10 in step 3 is set to be equal to the instantaneous permissible current of the conductor 11 that constitutes the core wire 10. The instantaneous permissible current is the amount of current that is permissible even if it instantaneously flows at the time of a short circuit failure or the like.

導体１１の瞬時許容電流の概略計算式として、以下の式（２）がある。 There is the following formula (2) as a rough calculation formula of the instantaneous permissible current of the conductor 11.

Figure 2020107477
Figure 2020107477

式（２）において、Ｉは瞬時許容電流［Ａ］、Ｋは導体１１の材質及び最高許容温度によって決まる係数、Ａｃは導体１１の断面積［ｍｍ３］、Ｔｓは電流が流れる時間［ｓ］である。例えば導体１１が断面積１ｍｍ３の銅線であった場合、Ｋ＝１５２であるため、その導体１１に１秒間流すことができる瞬時許容電流は、１５２Ａとなる。 In the equation (2), I is the instantaneous permissible current [A], K is a coefficient determined by the material and maximum permissible temperature of the conductor 11, A c is the cross-sectional area [mm 3 ] of the conductor 11, and T s is the time during which the current flows [ s]. For example, when the conductor 11 is a copper wire having a cross-sectional area of 1 mm 3 , since K=152, the instantaneous allowable current that can be passed through the conductor 11 for 1 second is 152A.

［作用、効果］
以上説明したように、本発明の実施の形態に係るケーブル１００は、複数の芯線１０と、複数の芯線１０とともに撚り合わされる介在糸２０と、を備え、複数の芯線１０と介在糸２０とが撚り合わされた状態で所定の電流が複数の芯線１０に同時に流されたとき、介在糸２０は、電流に起因して複数の芯線１０に掛かる力による、複数の芯線１０の各部の移動距離を規制する。 [Action, effect]
As described above, the cable 100 according to the embodiment of the present invention includes the plurality of core wires 10 and the intervening yarn 20 twisted together with the plurality of core wires 10, and the plurality of core wires 10 and the interposing yarn 20 are provided. When a predetermined current is simultaneously applied to the plurality of core wires 10 in a twisted state, the interposition yarn 20 regulates the movement distance of each part of the plurality of core wires 10 due to the force applied to the plurality of core wires 10 due to the current. To do.

また、複数の芯線１０に電流による力が加えられても芯線１０の移動を規制するため、介在糸２０は高強度、高耐久性、高耐熱性、絶縁性等の性質を備えたアラミド繊維で形成される。また、電流に起因して複数の芯線１０に掛かる力は、複数の芯線１０が互いに離れる方向の力である。 Further, since the movement of the core wire 10 is restricted even when a force due to an electric current is applied to the plurality of core wires 10, the interposition yarn 20 is an aramid fiber having properties such as high strength, high durability, high heat resistance, and insulation. It is formed. Further, the force exerted on the plurality of core wires 10 due to the electric current is a force in the direction in which the plurality of core wires 10 are separated from each other.

このような構成により、複数の芯線１０と介在糸２０とを撚り合わせて製造した後、複数の芯線１０に互いに離れる力が掛かるように電流を流すことで、複数の芯線１０の各部位同士が互いに最大限離れた位置となる。このため、複数の芯線１０の線間距離が均一となり、その結果として、複数の芯線１０の撚りピッチも均一となる。従って、本発明によれば、簡単な構造及び手順で、複数の芯線１０の線間距離が均一、かつ撚りピッチが均一なケーブルを製造することができる。これにより、信号伝送時の伝送ロスが少ないケーブル１００を提供することができる。 With such a configuration, after manufacturing the plurality of core wires 10 and the interposition yarn 20 by twisting each other, a current is applied to the plurality of core wires 10 so that the core wires 10 are separated from each other. The positions are farthest from each other. Therefore, the distance between the core wires 10 becomes uniform, and as a result, the twist pitch of the core wires 10 becomes uniform. Therefore, according to the present invention, it is possible to manufacture a cable having a uniform distance between the plurality of core wires 10 and a uniform twist pitch with a simple structure and procedure. As a result, it is possible to provide the cable 100 with less transmission loss during signal transmission.

＜変形例＞
上記した実施の形態では、芯線１０とシース３０との隙間を埋める介在物として、糸状の介在糸２０を採用したが、本発明はこれに限定されない。本発明に係るケーブルに採用される介在物は、例えば糸状以外の形状を有する、アラミド繊維を使用した介在物であってもよい。 <Modification>
In the above-described embodiment, the thread-shaped intervening thread 20 is used as the inclusion that fills the gap between the core wire 10 and the sheath 30, but the present invention is not limited to this. The inclusions used in the cable according to the present invention may be, for example, inclusions using aramid fibers having a shape other than a thread shape.

上記した実施の形態では、ケーブル１００が２本の芯線１０を含んで構成されていたが、本発明はこれに限定されない。すなわち、本発明に掛るケーブルは、３本以上の芯線を含んでいてもよい。その場合、複数の芯線１０に流す電流の方向は、各芯線に掛かる力が、互いに離れる方向となるように決定されればよい。 In the above-described embodiment, the cable 100 is configured to include the two core wires 10, but the present invention is not limited to this. That is, the cable according to the present invention may include three or more core wires. In that case, the directions of the currents flowing through the plurality of core wires 10 may be determined so that the forces applied to the respective core wires 10 are away from each other.

上記した実施の形態では、２本の芯線１０の撚りピッチ及び線間距離を調整する工程３において、芯線１０に１回のみ大電流を流すことで調整を行っていたが、本発明はこれに限定されない。電流を流す回数は１回ではなくてもよく、複数回であってもよい。しかしながら、電流を流す回数が増えると工数が増大しコストが掛かるので、適宜の回数に抑えられることが好適である。 In the above-described embodiment, the adjustment is performed by flowing the large current only once in the core wire 10 in the step 3 of adjusting the twist pitch and the inter-wire distance of the two core wires 10, but the present invention is not limited to this. Not limited. The number of times the current is passed may not be once, but may be multiple times. However, if the number of times the current is passed is increased, the number of steps is increased and the cost is increased. Therefore, it is preferable to suppress the number of times appropriately.

本発明は、信号伝送等に用いられるケーブルに適用することができる。 The present invention can be applied to a cable used for signal transmission and the like.

１０ 芯線
１１ 導体
１２ 絶縁体
２０ 介在糸
３０ シース
１００ ケーブル 10 core wire 11 conductor 12 insulator 20 intervening thread 30 sheath 100 cable

Claims (3)

複数の芯線と、
前記複数の芯線とともに撚り合わされる介在物と、
を備え、
前記複数の芯線と前記介在物とが撚り合わされた状態で所定の電流が前記複数の芯線に同時に流されたとき、前記介在物は、前記電流に起因して前記複数の芯線に掛かる力による、前記複数の芯線の各部の移動距離を規制する、
ケーブル。 Multiple core wires,
An inclusion that is twisted together with the plurality of core wires,
Equipped with
When a predetermined current is simultaneously applied to the plurality of core wires in a state where the plurality of core wires and the inclusions are twisted together, the inclusions are caused by a force applied to the plurality of core wires due to the current, Restricting the movement distance of each part of the plurality of core wires,
cable. 前記介在物は、アラミド繊維で形成された介在糸である、
請求項１に記載のケーブル。 The inclusions are interposition yarns formed of aramid fibers,
The cable according to claim 1. 前記電流に起因して前記複数の芯線に掛かる力は、前記複数の芯線が互いに離れる方向の力である、
請求項１または２に記載のケーブル。 The force applied to the plurality of core wires due to the electric current is a force in a direction in which the plurality of core wires are separated from each other,
The cable according to claim 1 or 2.
JP2018244775A 2018-12-27 2018-12-27 cable Pending JP2020107477A (en)

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Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002025355A (en) * 2000-07-05 2002-01-25 Totoku Electric Co Ltd Interposition for cable, and multi-core cable using the same
JP2017220367A (en) * 2016-06-08 2017-12-14 日立金属株式会社 Cable and wire harness

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002025355A (en) * 2000-07-05 2002-01-25 Totoku Electric Co Ltd Interposition for cable, and multi-core cable using the same
JP2017220367A (en) * 2016-06-08 2017-12-14 日立金属株式会社 Cable and wire harness

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