KR20060126208A - Overhead conductor utilizing c-type conductive wires - Google Patents

Overhead conductor utilizing c-type conductive wires Download PDF

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KR20060126208A
KR20060126208A KR1020050047939A KR20050047939A KR20060126208A KR 20060126208 A KR20060126208 A KR 20060126208A KR 1020050047939 A KR1020050047939 A KR 1020050047939A KR 20050047939 A KR20050047939 A KR 20050047939A KR 20060126208 A KR20060126208 A KR 20060126208A
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conductor
wire
wires
overhead
type
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KR1020050047939A
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Korean (ko)
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KR100725290B1 (en
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박현호
박성열
김성욱
윤희석
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엘에스전선 주식회사
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Priority to PCT/KR2005/001886 priority patent/WO2006129896A1/en
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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B7/00—Insulated conductors or cables characterised by their form
    • H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
    • H01B7/18—Protection against damage caused by wear, mechanical force or pressure; Sheaths; Armouring
    • H01B7/1805—Protections not provided for in groups H01B7/182 - H01B7/26
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B5/00—Non-insulated conductors or conductive bodies characterised by their form
    • H01B5/08—Several wires or the like stranded in the form of a rope
    • H01B5/10—Several wires or the like stranded in the form of a rope stranded around a space, insulating material, or dissimilar conducting material
    • H01B5/102—Several wires or the like stranded in the form of a rope stranded around a space, insulating material, or dissimilar conducting material stranded around a high tensile strength core
    • H01B5/104—Several wires or the like stranded in the form of a rope stranded around a space, insulating material, or dissimilar conducting material stranded around a high tensile strength core composed of metallic wires, e.g. steel wires
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B9/00—Power cables
    • H01B9/02—Power cables with screens or conductive layers, e.g. for avoiding large potential gradients
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B5/00—Non-insulated conductors or conductive bodies characterised by their form
    • H01B5/002—Auxiliary arrangements

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Abstract

An overhead conductor using a C-type conductive wire is provided to increase work efficiency by winding a fabricating wire on a bobbin uniformly due to a symmetric cross-section of the C-type conductor. An overhead conductor using a C-type conductive wire(40) includes a hard core(30). Both side surfaces of each aluminum wire include a concave portion and a convex portion. And, adjacent wires have a C type so as to be in contact with each other.

Description

Ｃ-형 도체를 이용한 가공 전선(架空電線){Overhead Conductor utilizing C-type conductive wires}Overhead Conductor utilizing C-type conductive wires

도 1은 종래의 사다리꼴 가공 송전선의 발췌 단면도.1 is a cross-sectional view taken from a conventional trapezoidal overhead power line.

도 2는 종래의 Z-형 가공 송전선의 발췌 단면도.2 is a cross-sectional view of a conventional Z-shaped overhead transmission line.

도 3은 본 발명의 바람직한 실시예에 따른 C-형 도체를 이용한 가공 송전선의 단면도.3 is a cross-sectional view of a overhead transmission line using a C-type conductor according to a preferred embodiment of the present invention.

<도면의 주요부분에 대한 부호의 설명><Description of the symbols for the main parts of the drawings>

30...강심 40...C-형 도체30 ... strong 40 ... C-type conductor

본 발명은 가공 전선에 관한 것으로서, 보다 상세하게는 "C"형으로 제작된 도체들이 강선 주위에 연선된 구조를 가진 C-형 도체를 이용한 가공 전선에 관한 것이다.The present invention relates to overhead wires, and more particularly, to overhead wires using C-type conductors having a structure in which conductors manufactured in the "C" shape are stranded around a steel wire.

일반적으로, 가공식 전력케이블, 가공지선, 광복합가공지선(OPGW) 등의 가공 전선(가공 송전선)은 전주나 송전탑에 의해 가설된다. 가설된 가공 전선에 있어서, 바람이 부는 경우, 바람이 부는 쪽에는 칼만 와류에 의해 풍 소음이 발생된다. 이러한 풍 소음을 방지하기 위해 지금까지 여러 가지 기술들이 개발되었다. 그러한 기술들은 주로 가공 송전선에 사용되는 원형의 알루미늄 도체의 모양을 변형시키는 것이다.Generally, overhead electric wires (processed transmission wires) such as overhead power cables, overhead wires, and optical composite overhead wires (OPGW) are constructed by poles or transmission towers. In the temporary overhead wire, when the wind blows, wind noise is generated by the Kalman vortex on the windy side. Various technologies have been developed to prevent such wind noise. Such techniques primarily modify the shape of circular aluminum conductors used in overhead transmission lines.

종래의 기술에 따른 가공 송전선의 단면도인 도 1을 참조하면, 강심(1) 주위에는 도체들(3)의 모양이 사다리꼴인 도체(Trapezoidal wire)들이 연선된다. 이러한 가공 송전선(5)은 동일한 전선 외경에서도 도체의 단면적을 증가시킴으로써, 송전 용량을 증가시키고 도체 사이의 접촉 면적을 증가시켜 진동 피로 특성을 개선시키고 있다.Referring to FIG. 1, which is a cross-sectional view of a overhead transmission line according to the related art, trapezoidal wires that are trapezoidal in shape of the conductors 3 are stranded around the steel core 1. This overhead transmission line 5 improves the vibration fatigue characteristics by increasing the cross-sectional area of the conductor even at the same wire outer diameter, thereby increasing the transmission capacity and increasing the contact area between the conductors.

그러나, 사다리꼴 도체를 이용한 가공 송전선(5)의 경우, 인접되는 사다리꼴 도체들이 완벽하게 접촉되지 않기 때문에 도체의 외층을 따라 계단 모양의 홈이 형성될 가능성이 높다. 이러한 경우, 바람에 의해 진동이 발생되고 이러한 진동에 의해 도체 표면의 계단화가 가속화된다. 이러한 현상은 코로나 효과 또는 소음을 발생시키게 된다. 또한, 이러한 가공 송전선은 연선된 소선들이 파단되는 경우 소선이 외부로 돌출되면서 소선들의 꼬임이 풀릴 수 있는 위험성이 증가하고, 도체 접촉면 사이로 수분이 침투되어 부식이 발생될 가능성이 높은 문제점이 있다.However, in the case of the overhead transmission line 5 using the trapezoidal conductor, there is a high possibility that stepped grooves are formed along the outer layer of the conductor because adjacent trapezoidal conductors are not perfectly in contact. In this case, vibrations are generated by the wind and the vibrations accelerate the stepping of the conductor surface. This phenomenon may cause corona effects or noise. In addition, when the stranded wires are broken, the overhead transmission line increases the risk that the wires are protruded to the outside and the twisting of the wires is increased, and moisture may penetrate between the conductor contact surfaces to cause corrosion.

다른 종래 기술에 따른 가공 송전선의 단면도인 도 2를 참조하면, 강심(11) 주위에 단면이 "Z"또는 "S"형으로 된 도체들(13)이 연선된다. 이러한 Z-형 도체를 이용하게 되면, 사다리꼴 도체를 이용하는 경우에 비해, 도체의 표면적 증가에 따른 전류 용량의 증대 및 진동 피로 특성의 개선을 가져올 수 있다. 또한, 도체 사이의 계단 모양이 없으므로 코로나 효과 또는 소음 발생을 감소시킬 수 있으 며, 연선된 소선이 파단될 경우에도 Z-형 모양에 의해 소선이 풀리는 현상을 감소시킬 수 있다.Referring to FIG. 2, which is a cross-sectional view of another transmission line according to the prior art, conductors 13 of cross-section "Z" or "S" type are stranded around the steel core 11. When using such a Z-shaped conductor, compared with the case of using a trapezoidal conductor, it is possible to increase the current capacity according to the increase of the surface area of the conductor and to improve the vibration fatigue characteristics. In addition, since there is no step shape between the conductors, it is possible to reduce the corona effect or noise generation, and even when the stranded wire breaks, it is possible to reduce the unwinding of the wire by the Z-shaped shape.

그러나, Z-형 도체를 이용한 가공 송전선(15)은 도체들의 형태가 비대칭적이므로 도체를 보빈(Reel)에 감을 때 균일하게 권취할 수 없는 문제점이 있어, 신선시에 Z-형 도체를 만들어야 하는 단점이 있다.However, the overhead transmission line 15 using the Z-type conductor has a problem that the conductors are asymmetric, so that the conductor cannot be wound evenly when the conductor is wound on the bobbin (Reel). There is this.

본 발명은 상술한 문제점들을 해결하기 위해 착상된 것으로서, C-형으로 된 도체를 이용함으로써 도체들간의 접촉 면적의 증대, 수분 침투 방지, 소선의 풀리는 현상 방지는 물론, 보빈(Reel)에 도체를 감을 경우 균일하게 권취할 수 있는 C-형 도체를 이용한 가공 전선을 제공하는 데 그 목적이 있다.The present invention has been conceived to solve the above-mentioned problems, by using a C-shaped conductor to increase the contact area between the conductors, to prevent moisture infiltration, to prevent the wire from being loosened, as well as to prevent the conductor from being removed from the bobbin (Reel). The object is to provide an overhead wire with a C-type conductor that can be wound evenly when wound.

상기 목적을 달성하기 위하여 본 발명의 바람직한 실시예에 따른 C-형 도체를 이용한 가공 전선은, 강심 주위에 알루미늄 소선을 꼬아 맞춘 가공 전선에 있어서, 상기 각각의 알루미늄 소선들의 양 측면은 오목한 부분과 볼록한 부분을 포함하고, 인접되는 소선들이 서로 접촉될 수 있도록 "C"형이다.In order to achieve the above object, a process wire using a C-type conductor according to a preferred embodiment of the present invention is a process wire in which aluminum wires are twisted around a steel core, and both sides of each of the aluminum wires are concave and convex. And a "C" type so that adjacent wires can contact each other.

바람직하게 상기 알루미늄 소선들의 상하면의 곡률반경과 연선시 케이블 중심에서 도체의 상하면 표면까지의 거리와의 편차는 ± 10% 이내이다.Preferably, the deviation between the radius of curvature of the upper and lower surfaces of the aluminum wires and the distance from the center of the cable to the upper and lower surfaces of the conductors when stranded are within ± 10%.

바람직하게 상기 알루미늄 소선의 양 측면에 해당하는 오목면과 볼록면의 곡률 반경은 서로 동일하며, 그 높이의 20% 내지 70% 범위이다.Preferably, the radius of curvature of the concave and convex surfaces corresponding to both sides of the aluminum element wire are the same, and range from 20% to 70% of their height.

이하, 본 발명의 바람직한 실시예에 따른 C-형 도체를 이용한 가공 전선을 첨부된 도면들을 참조하여 상세히 설명한다.Hereinafter, a processed wire using a C-type conductor according to a preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings.

도 3은 본 발명의 바람직한 실시예에 따른 C-형 도체를 이용한 가공 전선의 개략적 단면도이다.3 is a schematic cross-sectional view of a overhead wire using a C-type conductor according to a preferred embodiment of the present invention.

도 3을 참조하면, 먼저, 경강선이 7본 연선된 강심(30)을 준비한다. 강심(30)은 알루미늄이 클래딩된 7개의 강심 소선들을 소정 형상으로 연선한 구조인 것이 바람직하다. 여기서, 강심 소선의 수는 가공 전선의 용량 등에 따라 조절될 수 있음은 물론이다. 클래딩 및 연선 방법은 공지의 기술에 의해 구현 가능하다.Referring to FIG. 3, first, a steel core 30 of seven hard wires is prepared. The core 30 is preferably a structure in which seven steel core wires clad with aluminum are stranded in a predetermined shape. Here, of course, the number of the core wire can be adjusted according to the capacity of the overhead wire. Cladding and stranded methods can be implemented by known techniques.

이어서, 강심(30) 주위에 연선될 알루미늄 도체를 C-형 도체(40)로 성형한다.Subsequently, an aluminum conductor to be stranded around the steel core 30 is formed into a C-type conductor 40.

C-형 도체(40)는 성형 다이 또는 압축 롤러를 통과시키는 방법에 의해 제작된다. C-형 도체의 상,하면의 곡률 반경은 연선시 케이블 중심에서 도체의 표면 까지의 거리와 동일하도록 하는 것이 가장 바람직하며, C형 도체의 상하면의 곡률반경은 연선시 케이블 중심에서 도체의 상하면 표면까지의 거리와의 편차는 ± 10% 이내인 것이 바람직하다. 이는 거리와의 편차가 ± 10% 이상이 되면, C형 도체를 강심 주위에 연선할 때, 연선된 도체층이 원형을 이루기가 어려워 소선의 풀림현상이 발생할 우려가 있다.C-shaped conductor 40 is manufactured by a method of passing a forming die or a compression roller. It is most preferable that the radius of curvature of the upper and lower surfaces of the C-type conductor is equal to the distance from the center of the cable to the surface of the conductor when the stranded wire is stranded. The deviation from the distance to is preferably within ± 10%. When the deviation from the distance is ± 10% or more, when the C-type conductor is twisted around the core, it is difficult for the stranded conductor layer to form a circle, which may cause loosening of the wire.

C-형 도체(40)의 양 측면은 볼록 부분과 오목 부분으로 구분되고, 볼록 부분과 오목 부분이 서로 밀접하게 접촉되도록 제작된다. 이를 위해, 볼록 부분과 오목 부분은 그 곡률 반경이 동일하게 유지시키는 것이 바람직하다.Both sides of the C-shaped conductor 40 are divided into convex portions and concave portions, and are manufactured so that the convex portions and concave portions are in close contact with each other. For this purpose, the convex portion and the concave portion are preferably kept the same in radius of curvature.

또한, 상기 C형 도체의 볼록부분과 오목부분의 곡률반경은 그 높이의 20% 내 지 70% 범위인 것이 바람직한데, 곡률반경이 20% 이하인 경우, 각 C형 도체를 연선하여 밀접하게 접촉시키는 작업이 곤란하고, 70% 이상인 경우, 도체들간의 접촉 면적을 증대시키거나 수분 침투를 방지하는 효과가 떨어지게 될 우려가 있다.In addition, the radius of curvature of the convex portion and the concave portion of the C-type conductor is preferably in the range of 20% to 70% of its height. When the radius of curvature is 20% or less, each C-type conductor is stranded in close contact. If the work is difficult and 70% or more, there is a fear that the effect of increasing the contact area between the conductors or preventing the penetration of moisture is reduced.

다음, C-형 도체를 강심 주위에 연선할 경우, 오복 부분이 인접되는 옆 도체의 볼록 부분과 접촉되도록 작업한다.Next, when the C-type conductor is stranded around the core, the working part is brought into contact with the convex part of the adjacent side conductor.

상술한 바와 같이, 본 발명에 따른 C-형 도체를 이용한 가공 전선은 종래의 Z-형 도체를 이용한 가공 전선의 장점을 모두 구비하고 있을 뿐만 아니라 그 도체의 단면이 대칭적이므로 보빈(Reel)에 균일한 형태로 권취할 수 있으며, 신선단계가 아닌 연선단계에서도 C형 도체를 제조할 수 있으므로 작업효율이 증대되는 효과가 있다. 또한, 연선 작업시 C-형 도체들이 서로 맞물려 쉽게 이탈되지 않기 때문에 배열 작업이 용이하다.As described above, the overhead wire using the C-shaped conductor according to the present invention not only has all the advantages of the overhead wire using the conventional Z-shaped conductor, but the cross section of the conductor is symmetrical, so it is uniform in the bobbin (Reel). It can be wound in one form and can produce C-type conductors in the twisted pair stage, not the draw stage, thereby increasing the work efficiency. In addition, since the C-type conductors are not easily separated due to engagement with each other in the twisted pair operation, the arrangement operation is easy.

Claims (3)

강심 주위에 알루미늄 소선을 꼬아 맞춘 가공 전선에 있어서,In the processing wire which twisted aluminum wire around the core, 상기 각각의 알루미늄 소선들의 양 측면은 오목한 부분과 볼록한 부분을 포함하고, 인접되는 소선들이 서로 접촉될 수 있도록 "C"형인 것을 특징으로 하는 가공 전선(架空電線).Both side surfaces of each of the aluminum wires include a concave portion and a convex portion, wherein the overhead wires are “C” shaped so that adjacent wires can contact each other. 제1항에 있어서,The method of claim 1, 상기 알루미늄 소선들의 상하면의 곡률반경과 연선시 케이블 중심에서 도체의 상하면 표면까지의 거리와의 편차는 ± 10% 이내인 것 것을 특징으로 하는 가공 전선.And a deviation between the radius of curvature of the upper and lower surfaces of the aluminum wires and the distance from the center of the cable to the upper and lower surfaces of the conductors when stranded is within ± 10%. 제1항 또는 제2항에 있어서,The method according to claim 1 or 2, 상기 알루미늄 소선의 양 측면에 해당하는 오목면과 볼록면의 곡률 반경은 서로 동일하며, 그 높이의 20% 내지 70% 범위인 것을 특징으로 하는 가공 전선.The curvature radius of the concave surface and the convex surface corresponding to both sides of the aluminum element wire is the same, and the processing wire, characterized in that the range of 20% to 70% of the height.
KR1020050047939A 2005-06-03 2005-06-03 Overhead Conductor utilizing C-type conductive wires KR100725290B1 (en)

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Application Number Priority Date Filing Date Title
KR1020050047939A KR100725290B1 (en) 2005-06-03 2005-06-03 Overhead Conductor utilizing C-type conductive wires
PCT/KR2005/001886 WO2006129896A1 (en) 2005-06-03 2005-06-17 Overhead conductor utilizing c-type conductive wires

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KR1020050047939A KR100725290B1 (en) 2005-06-03 2005-06-03 Overhead Conductor utilizing C-type conductive wires

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TW388031B (en) * 1997-09-29 2000-04-21 Furukawa Electric Co Ltd Overhead wire
KR100288813B1 (en) * 1998-02-16 2001-05-02 오카야마 노리오 Electric wire processed article and method of manufacturing the same
FR2836591A1 (en) * 2002-02-27 2003-08-29 Pierre Robert Gouniot Composite conductive wire, used in the manufacture of overhead electricity conductors, comprises a reinforcing core of organic or inorganic material, coated with one or more braided aluminum wire layers
KR200380362Y1 (en) * 2004-12-30 2005-03-29 임성황 Electric wire cooling device using parallel hollow of hollow conductor wire

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WO2006129896A1 (en) 2006-12-07

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