KR20200112242A - Optical fiber and power line composite cable - Google Patents

Optical fiber and power line composite cable Download PDF

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KR20200112242A
KR20200112242A KR1020190032401A KR20190032401A KR20200112242A KR 20200112242 A KR20200112242 A KR 20200112242A KR 1020190032401 A KR1020190032401 A KR 1020190032401A KR 20190032401 A KR20190032401 A KR 20190032401A KR 20200112242 A KR20200112242 A KR 20200112242A
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composite cable
tube
optical fiber
photoelectric composite
optical fibers
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KR1020190032401A
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Korean (ko)
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KR102206260B1 (en
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유관종
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조선대학교산학협력단
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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B11/00—Communication cables or conductors
    • H01B11/22—Cables including at least one electrical conductor together with optical fibres
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/02—Optical fibres with cladding with or without a coating
    • G02B6/02042—Multicore optical fibres
    • 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
    • H01B7/182—Protection against damage caused by wear, mechanical force or pressure; Sheaths; Armouring comprising synthetic filaments
    • H01B7/1825—Protection against damage caused by wear, mechanical force or pressure; Sheaths; Armouring comprising synthetic filaments forming part of a high tensile strength core
    • 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
    • H01B7/187—Sheaths comprising extruded non-metallic layers
    • 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
    • H01B7/1895—Internal space filling-up means
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B9/00—Power cables
    • H01B9/005—Power cables including optical transmission elements
    • 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

Abstract

The present invention relates to a photoelectric composite cable. The photoelectric composite cable comprises: a plurality of optical fibers; a first tube surrounding the optical fibers; a sheath surrounding the first tube; a plurality of wires installed in a space between the first tube and the sheath, wherein glass optical fibers are applied to the optical fibers. According to the photoelectric composite cable, it is possible to sufficiently secure a signal transmission length by having stable bending characteristics and suppressing signal attenuation, and to provide an advantage of easy installation by lowering the friction coefficient of the sheath.

Description

광전 복합 케이블{Optical fiber and power line composite cable}Photoelectric composite cable {Optical fiber and power line composite cable}

본 발명은 광전 복합 케이블에 관한 것으로서, 상세하게는 신호 감쇠를 억제하고 구부림 허용범위를 확장할 수 있도록 된 광전 복합 케이블에 관한 것이다.The present invention relates to a photoelectric composite cable, and more particularly, to a photoelectric composite cable capable of suppressing signal attenuation and extending an allowable bending range.

일반적으로 관로 상에 설치되는 광섬유케이블은 다수의 광섬유가 피복에 에워싸여진 구조로 되어 있다. 이러한 광섬유케이블은 관로 포설시의 포설 강도를 고려하여 높은 인장 강도 및 안정된 굴곡 특성을 갖도록 형성되어야 한다. 종래의 대부분의 광섬유케이블은 피복의 중심부에 중심 인장선이 배치되어 있고, 피복과 중심 인장선 사이의 공간에 다수개의 광섬유요소를 삽입한 구조로 되어 있다.In general, an optical fiber cable installed on a pipe has a structure in which a number of optical fibers are surrounded by a sheath. Such an optical fiber cable should be formed to have high tensile strength and stable bending characteristics in consideration of the laying strength when laying pipes. Most of the conventional optical fiber cables have a structure in which a center tension line is arranged in the center of the sheath, and a plurality of optical fiber elements are inserted in the space between the sheath and the center tension line.

한편, 최근에는 광신호와 전기신호를 함께 전송할 수 있는 광전 복합케이블이 개발되어 이용되고 있고, 국내 등록특허 제10-1147166호 등 다양하게 게시되어 있다.On the other hand, in recent years, a photoelectric composite cable capable of transmitting an optical signal and an electric signal has been developed and used, and has been published in various ways, such as Korean Patent No. 10-1147166.

이러한 광전 복합케이블의 경우 대부분 플라스틱 광섬유를 적용하고 있어 신호 감쇠가 커 신호 전송길이가 짧고, 굴곡 허용도가 낮은 문제점이 있다.In the case of these photoelectric composite cables, plastic optical fibers are mostly used, so signal attenuation is large, so the signal transmission length is short and the bending tolerance is low.

한편, 광전 복합케이블 내에 단일모드 유리 광섬유를 적용하는 경우 연장 길이에 따른 신호 감쇠율은 플라스틱 광섬유에 비해 향상되나 굴곡시 눌림에 따른 신호 감쇠를 개선할 수 있는 방안이 요구되고 있다.On the other hand, when a single-mode glass optical fiber is applied in a photoelectric composite cable, a signal attenuation rate according to an extension length is improved compared to that of a plastic optical fiber, but there is a need for a method to improve signal attenuation due to compression during bending.

본 발명은 상기와 같은 요구사항을 해결하기 위하여 창안된 것으로서, 안정된 굴곡특성과 신호감쇠를 억제하여 신호 전송 길이를 충분히 확보할 수 있는 광전 복합 케이블을 제공하는데 그 목적이 있다.The present invention was invented to solve the above requirements, and an object thereof is to provide a photoelectric composite cable capable of sufficiently securing a signal transmission length by suppressing stable bending characteristics and signal attenuation.

상기의 목적을 달성하기 위하여 본 발명에 따른 광전 복합 케이블은 광전복합 케이블에 있어서, 상기 광전 복합 케이블의 중심에 위치하며 항장력을 제공하는 중심 인장선과; 상기 중심 인장선 주위에 상기 중심 인장선을 에워 싸게 배치된 복수 개의 광섬유와; 상기 광섬유들을 감싸는 제1튜브와; 상기 제1튜브를 에워싸는 피복과; 상기 제1튜브와 상기 피복 사이의 공간에 설치된 복수 개의 전선;을 구비하고, 상기 중심 인장선은 상기 광섬유의 지지영역을 확장할 수 있도록 외주면이 비원형으로 형성되어 있다.In order to achieve the above object, the photoelectric composite cable according to the present invention comprises: a center tension line positioned at the center of the photoelectric composite cable and providing a tensile strength; A plurality of optical fibers disposed around the center tension line and surrounding the center tension line; A first tube surrounding the optical fibers; A covering surrounding the first tube; And a plurality of electric wires installed in the space between the first tube and the sheath, wherein the central tension line has a non-circular outer circumferential surface so as to expand a support area of the optical fiber.

본 발명의 일 측면에 따르면, 상기 광섬유는 4개가 상호 인접되게 배치되어 있고, 상기 중심 인장선은 상기 유리 광섬유 각각의 외주면에 밀착지지될 수 있게 원주방향을 따라 내측으로 호형으로 인입되게 형성된 4개의 호형 내측밀착부분을 갖게 형성되어 있고, FRP소재로 형성되어 있고, 상기 광섬유는 유리 광섬유가 적용된다.According to an aspect of the present invention, four optical fibers are disposed adjacent to each other, and the central tension line is formed to be drawn in an arc shape inward along the circumferential direction so that it can be closely supported on the outer peripheral surface of each of the glass optical fibers. It is formed to have an arc-shaped inner contact portion, and is made of an FRP material, and a glass optical fiber is applied to the optical fiber.

본 발명의 또 다른 측면에 따르면, 상기 광섬유는 6개가 상호 인접되게 배치되어 있고, 상기 중심 인장선은 상기 광섬유 각각의 외주면에 밀착지지될 수 있게 원주방향을 따라 내측으로 호형으로 인입되게 형성된 6개의 호형 내측밀착부분을 갖게 형성되어 있고, FRP소재로 형성되어 있고, 상기 광섬유는 유리 광섬유가 적용된다.According to another aspect of the present invention, the six optical fibers are arranged adjacent to each other, and the central tension line is formed to be drawn in an arc shape inward along the circumferential direction so that it can be closely supported on the outer peripheral surface of each of the optical fibers. It is formed to have an arc-shaped inner contact portion, and is made of an FRP material, and a glass optical fiber is applied to the optical fiber.

바람직하게는 상기 제1튜브는 상기 광섬유 각각의 외주면을 호형으로 에워싸게 상기 중심 인장선으로부터 멀어지는 방향으로 호형으로 인입되게 형성된 6개의 호형 외측 밀착부분을 갖게 형성되어 있고, 상기 제1튜브 내에 폐궤도로 형성되며 전기 전도성 소재로 형성된 링형부분과, 상기 링형부분에서 상기 호형 외측 밀착부분들 사이의 경계부분을 통해 상기 으로부터 방사상으로 상기 제1튜브 외부로 돌출되게 연장되며 전기전도성 소재로 형성된 아암부분을 갖는 전자파 차폐체;를 더 구비한다.Preferably, the first tube is formed to have six arc-shaped outer contact portions formed to be arc-shaped in a direction away from the central tension line to surround the outer circumferential surface of each of the optical fibers in an arc shape, and a closed orbit within the first tube A ring-shaped portion formed of an electrically conductive material and an arm portion formed of an electrically conductive material extending radially from the ring-shaped portion to the outside of the first tube through a boundary portion between the arc-shaped outer contact portions. It further includes an electromagnetic shielding body having;

또한, 상기 피복은 LSZH 메인소재 83 내지 88중량%, 테프론 4 내지 6중량%, 폴리옥시메틸렌 3 내지 4중량%, 몰리브덴 0.5 내지 0.7중량%, LiO2 1 내지 2중량%와, Na2O3 1 내지 3중량% 및 ZrO2 1 내지 3 중량%로 형성되는 것이 바람직하다.In addition, the coating is the LSZH main material 83 to 88 wt%, Teflon 4 to 6 wt%, polyoxymethylene 3 to 4 wt%, molybdenum 0.5 to 0.7 wt%, LiO 2 It is preferably formed of 1 to 2% by weight, Na 2 O 3 1 to 3% by weight and ZrO 2 1 to 3% by weight.

본 발명에 따른 광전 복합 케이블에 의하면, 안정된 굴곡특성과 신호 감쇠를 억제하여 신호 전송길이를 충분히 확보할 수 있으며 피복의 마찰계수를 낮추어 포설이 용이한 장점을 제공한다.According to the photoelectric composite cable according to the present invention, it is possible to sufficiently secure a signal transmission length by suppressing stable bending characteristics and signal attenuation, and to provide an advantage of easy installation by lowering the friction coefficient of the coating.

도 1은 본 발명의 일 실시예에 따른 광전 복합 케이블을 나타내 보인 단면도이고,
도 2는 본 발명의 또 다른 실시예에 따른 광전 복합 케이블을 나타내 보인 단면도이다.1 is a cross-sectional view showing a photoelectric composite cable according to an embodiment of the present invention,
2 is a cross-sectional view showing a photoelectric composite cable according to another embodiment of the present invention.

이하, 첨부된 도면을 참조하면서 본 발명의 바람직한 실시예에 따른 광전 복합 케이블을 더욱 상세하게 설명한다.Hereinafter, a photoelectric composite cable according to a preferred embodiment of the present invention will be described in more detail with reference to the accompanying drawings.

도 1은 본 발명의 일 실시예에 따른 광전 복합 케이블을 나타내 보인 단면도이다.1 is a cross-sectional view showing a photoelectric composite cable according to an embodiment of the present invention.

도 1을 참조하면, 본 발명에 따른 광전복합 케이블(100)은 중심 인장선(110), 4개의 광섬유(120), 제1튜브(130), 6개의 전선(140) 및 피복(160)을 구비한다.Referring to FIG. 1, the photoelectric composite cable 100 according to the present invention includes a central tension line 110, four optical fibers 120, a first tube 130, six electric wires 140, and a sheath 160. Equipped.

중심 인장선(110)은 광전 복합 케이블(100)의 중심에 위치하며 항장력을 제공한다.The central tension line 110 is located at the center of the photoelectric composite cable 100 and provides a tensile strength.

중심 인장선(110)은 주위에 배치되는 광섬유(120)의 지지영역을 확장할 수 있도록 외주면이 비원형으로 형성되어 있다.The central tension line 110 has a non-circular outer circumferential surface to expand the support area of the optical fiber 120 disposed therearound.

즉, 중심 인장선(110)은 광섬유(120) 각각의 외주면에 밀착지지되며 밀착시 밀착영역을 충분히 제공할 수 있게 원주방향을 따라 내측으로 호형으로 인입되게 형성된 4개의 호형 내측밀착부분(110a)을 갖게 형성되어 있다.That is, the central tension line 110 is closely supported on the outer circumferential surface of each of the optical fibers 120, and four arc-shaped inner contact portions 110a formed to be drawn inwardly in an arc shape along the circumferential direction so as to provide a sufficient contact area upon contact. Is formed to have.

여기서, 내측 밀착부분(110a)의 곡률 반경은 지지대상 광섬유(120)의 반경을 기준으로 1.1 내지 1.5 정도가 되게 적용하는 것이 바람직하다.Here, it is preferable to apply the radius of curvature of the inner contact portion 110a to be about 1.1 to 1.5 based on the radius of the optical fiber 120 to be supported.

중심 인장선(110)은 성형성이 좋은 FRP(fiberglass reinforced polyester)소재로 형성한다.The center tension line 110 is formed of a fiberglass reinforced polyester (FRP) material having good formability.

이러한 구조에 의하면, 광섬유 케이블(100)이 굴곡시 광섬유(120) 각각의 눌림에 의한 형상 변형을 억제시켜 광전송 손실을 방지할 수 있다.According to this structure, when the optical fiber cable 100 is bent, it is possible to prevent optical transmission loss by suppressing shape deformation caused by pressing of each optical fiber 120.

광섬유(120)는 중심 인장선(110) 주위에 중심 인장선(110)을 에워 싸게 호형 내측밀착부분(110a) 각각에 수용되게 배치되어 있다.The optical fiber 120 is disposed to be accommodated in each of the arc-shaped inner contact portions 110a surrounding the central tension line 110 around the central tension line 110.

광섬유(120)는 광을 전송하며, 유리재질의 코어 및 클래드로 이루어진 베어 광섬유(bare optical fiber)(121)와, 베어 광섬유를 코팅하는 코팅층(122)을 갖는 구조가 예시되어 있다. 코팅층(122)은 수지로 코팅하거나, 식별을 용이하게 하기 위해 착색한 것 또는 베어 광섬유(121)를 플라스틱으로 압출 코팅한 것 또는 튜브에 실장시킨 구조가 적용될 수 있다.The optical fiber 120 transmits light, and a structure having a bare optical fiber 121 made of a core and clad made of a glass material and a coating layer 122 coating the bare optical fiber is illustrated. The coating layer 122 may be coated with a resin, colored to facilitate identification, extrusion coated of the bare optical fiber 121 with plastic, or a structure mounted on a tube.

유리소재의 베어 광섬유(120)는 플라스틱 광섬유에 비해 광신호의 장거리 전송이 가능하고, 벤딩 허용각도가 더 큰 장점을 제공한다.The bare optical fiber 120 made of a glass material can transmit optical signals over a long distance and provides a greater allowable bending angle compared to a plastic optical fiber.

제1튜브(130)는 4개의 광섬유(120)들을 감싸며 4각 튜브 구조가 적용되었다.The first tube 130 surrounds the four optical fibers 120 and a quadrangular tube structure is applied.

제1튜브(130)는 폴리프로필렌, 폴리에틸렌, 폴리 염화비닐 수지로 형성된 것을 적용할 수 있다.The first tube 130 may be formed of polypropylene, polyethylene, or polyvinyl chloride resin.

제1튜브(130) 내부에는 광섬유(120)를 보호하며 굴곡 안정성을 제공할 수 있도록 폴리머(polymer)(125) 또는 젤리(Jelly)로 충진되어 있다. 제1튜브(130) 내에 충진되는 폴리머는 자외선에 의해 경화되는 폴리머를 적용한다.The inside of the first tube 130 is filled with a polymer 125 or jelly to protect the optical fiber 120 and provide bending stability. As the polymer filled in the first tube 130, a polymer cured by ultraviolet rays is applied.

피복(160)은 제1튜브(130)를 에워싸며 전선(140)을 수용할 수 있게 중공을 갖게 형성되어 있다.The covering 160 surrounds the first tube 130 and is formed to have a hollow so as to accommodate the electric wire 140.

전선(140)은 도체 예를 들면 구리소재로 된 심선(141)과, 심선(141)에 절연소재로 피복된 절연층(142)을 갖는 구조로 되어 있다.The electric wire 140 has a structure including a core wire 141 made of a conductor, for example, a copper material, and an insulating layer 142 coated with an insulating material on the core wire 141.

전선(140)은 피복(140)과 제1튜브(130) 사이 공간에 원주방향을 따라 상호 이격되게 6개가 삽입되어 있다.Six wires 140 are inserted in the space between the sheath 140 and the first tube 130 to be spaced apart from each other along the circumferential direction.

전선(140)들의 절연층(142)은 상호 다른 색상으로 형성된다.The insulating layers 142 of the electric wires 140 are formed in different colors.

바람직하게는 전선(140)의 절연층(142)은 파랑, 주황, 녹색, 황색, 갈색, 흰색으로 각각 착색되어 있다.Preferably, the insulating layer 142 of the electric wire 140 is colored in blue, orange, green, yellow, brown, and white, respectively.

제1튜브(130)와 피복(160) 사이의 빈공간에는 아라미드 섬유로 충진된 보강부재(150)가 삽입되어 있다.A reinforcing member 150 filled with aramid fibers is inserted into the empty space between the first tube 130 and the covering 160.

피복(160)은 충분한 난연특성을 확보하면서도 낮은 마찰계수를 제공할 수 있으며 성형성이 좋은 소재로 형성되는 것이 바람직하다.The coating 160 can provide a low coefficient of friction while securing sufficient flame retardant properties, and is preferably formed of a material having good formability.

피복은 메인소재 83 내지 88중량%, 테프론 4 내지 6중량%, 폴리옥시메틸렌 3 내지 4중량%, 몰리브덴 0.5 내지 0.7중량%, LiO2 1 내지 2중량%와, Na2O3 1 내지 3중량% 및 ZrO2 1 내지 3 중량%로 형성된다.The coating is 83 to 88% by weight of the main material, 4 to 6% by weight of Teflon, 3 to 4% by weight of polyoxymethylene, 0.5 to 0.7% by weight of molybdenum, LiO 2 1 to 2% by weight and Na 2 O 3 It is formed from 1 to 3% by weight and 1 to 3% by weight of ZrO 2 .

메인소재는 LSZH(Low Smoke Zero Halogen)를 적용한다.The main material is LSZH (Low Smoke Zero Halogen).

피복(160)을 이루는 성분 중 테프론, 폴리옥시메틸렌, 몰리브덴은 마찰계수를 낮추기 위한 것이다.Among the components constituting the sheath 160, Teflon, polyoxymethylene, and molybdenum are for lowering the coefficient of friction.

몰리브덴은 저마찰 특성을 부여하여 포설시 접촉저항을 줄이고, 마모에 대한 저항성을 높인다.Molybdenum gives low friction characteristics to reduce contact resistance during installation and increase resistance to abrasion.

LiO2 는 열팽창시 균열을 억제하며 1중량% 미만으로 첨가시 균열억제 효과를 얻기 어렵고, 2.5중량% 이상에서는 균열억제 증가 효과가 둔화된다. LiO 2 Suppresses cracking during thermal expansion, and when added to less than 1% by weight, it is difficult to obtain a crack inhibiting effect, and when it is more than 2.5% by weight, the effect of increasing crack suppression is slowed.

또한, Na2O3 는 성형 강도를 향상시키며, 1중량% 미만으로 첨가시 성형 강도 증가 효과가 미미하고, 4중량% 이상에서는 성형 강도 증가 효과가 둔화된다. Also, Na 2 O 3 Improves the molding strength, the effect of increasing the molding strength is insignificant when added to less than 1% by weight, and the effect of increasing the molding strength is slowed at 4% by weight or more.

ZrO2 는 수축을 억제시키며 1중량% 미만으로 첨가시 수축 억제 효과가 미미하고, 4중량% 이상에서는 수축 억제 증가 효과가 둔화 된다. ZrO 2 inhibits shrinkage, and when it is added in an amount of less than 1% by weight, the effect of inhibiting shrinkage is insignificant, and when it is added in an amount of less than 1% by weight, the effect of increasing the inhibition of shrinkage is slowed.

한편, 굴곡시 광섬유에 대한 외형 변화를 더욱 억제시킬 수 있는 형상으로 제1튜브가 적용될 수 있고 그 예를 도 2를 참조하여 설명한다. 앞서 도시된 도면에서와 동일 기능을 하는 요소는 동일 참조부호로 표기한다.On the other hand, the first tube may be applied in a shape capable of further suppressing changes in the external shape of the optical fiber when it is bent, and an example thereof will be described with reference to FIG. 2. Elements having the same function as in the drawings shown above are denoted by the same reference numerals.

도 2를 참조하면, 중심 인장선(110)은 6개의 호형 내측밀착부분(110a)을 갖게 형성되어 있고, 6개의 광섬유(120)가 중심 인장선(110)의 각 호형 내측밀착부분(110a) 수용되게 배치되어 있다.2, the center tension line 110 is formed to have six arc-shaped inner contact portions 110a, and six optical fibers 120 are each arc-shaped inner contact portion 110a of the center tensile line 110 It is arranged to be accommodated.

제1튜브(230)는 6개의 광섬유(120)를 에워싸 수용할 수 있게 형성되어 있다.The first tube 230 is formed to enclose and accommodate six optical fibers 120.

제1튜브(230)는 광섬유(120) 각각의 외주면을 호형으로 에워싸게 중심 인장선(110)으로부터 멀어지는 방향으로 호형으로 인입되게 형성된 6개의 호형 외측 밀착부분(230a)을 갖게 형성되어 있다.The first tube 230 is formed to have six arc-shaped outer contact portions 230a formed to be arc-shaped in a direction away from the central tension line 110 to surround the outer circumferential surface of each optical fiber 120 in an arc shape.

외측 밀착부분(230a)의 곡률 반경은 지지대상 광섬유(120)의 반경을 기준으로 1.1 내지 1.5 정도가 되게 적용하는 것이 바람직하다.It is preferable to apply the radius of curvature of the outer contact portion 230a to be about 1.1 to 1.5 based on the radius of the optical fiber 120 to be supported.

전자파 차폐체(237)는 전선(140) 상호간을 구획되게 함과 동시에 전선(140)에서 발생되는 전자파를 흡수할 수 있게 형성되어 있다.The electromagnetic wave shield 237 is formed to divide the wires 140 and absorb electromagnetic waves generated from the wires 140 at the same time.

전자파 차폐체(237)는 제1튜브(230) 내에 폐궤도로 형성되며 전기 전도성 소재로 형성된 링형부분(237a)과, 링형부분(237a)에서 호형 외측 밀착부분들 사이의 경계부분을 통해 방사상으로 제1튜브(230) 외부로 돌출되게 연장되며 전기전도성 소재로 형성된 아암부분(237b)을 갖는 구조로 되어 있다.The electromagnetic wave shield 237 is formed in a closed orbit in the first tube 230 and is radially controlled through a ring-shaped portion 237a formed of an electrically conductive material and a boundary portion between the arc-shaped outer contact portions in the ring-shaped portion 237a. 1 The tube 230 is protruded to the outside and has an arm portion 237b formed of an electrically conductive material.

아암부분(237b)은 피복(160)의 내측면에 대해 이격되는 위치까지 연장되게 형성되어 있다. The arm portion 237b is formed to extend to a position spaced apart from the inner surface of the covering 160.

전자파 차폐체(237)는 도전성 소재로 형성되며, 바람직하게는 탄소나노튜브로 형성된다.The electromagnetic wave shield 237 is formed of a conductive material, and is preferably formed of a carbon nanotube.

이러한 광전 복합 케이블에 의하면, 굴곡시 광섬유(120)가 중심 인장선(110)과 외측 밀착부분(230a) 사이에 에워싸는 구조로 지지되어 굴곡 압력이 분산됨으로써 변형을 억제시켜 안정된 굴곡특성을 제공함과 아울러 신호 감쇠를 억제하여 신호 전송길이를 충분히 확보할 수 있으며 전자파도 차폐할 수 있는 장점을 제공한다.According to this photoelectric composite cable, when the optical fiber 120 is bent, the optical fiber 120 is supported in a structure that is surrounded between the center tension line 110 and the outer contact portion 230a, so that the bending pressure is dispersed, thereby suppressing deformation and providing stable bending characteristics. By suppressing signal attenuation, the signal transmission length can be sufficiently secured and electromagnetic waves can be shielded.

110: 중심 인장선 110a: 호형 내측밀착부분
120: 광섬유 130, 230: 제1튜브
140: 전선
160: 피복 230a: 호형 외측밀착부분
237: 전자파 차폐체110: center tension line 110a: arc-shaped inner contact portion
120: optical fiber 130, 230: first tube
140: wire
160: sheath 230a: arc-shaped outer contact portion
237: electromagnetic wave shield

Claims (5)

광전복합 케이블에 있어서,
상기 광전 복합 케이블의 중심에 위치하며 항장력을 제공하는 중심 인장선과;
상기 중심 인장선 주위에 상기 중심 인장선을 에워 싸게 배치된 복수 개의 광섬유와;
상기 광섬유들을 감싸는 제1튜브와;
상기 제1튜브를 에워싸는 피복과;
상기 제1튜브와 상기 피복 사이의 공간에 설치된 복수 개의 전선;을 구비하고,
상기 중심 인장선은 상기 광섬유의 지지영역을 확장할 수 있도록 외주면이 비원형으로 형성된 것을 특징으로 하는 광전 복합 케이블.In the photoelectric composite cable,
A central tension line positioned at the center of the photoelectric composite cable and providing a tensile strength;
A plurality of optical fibers disposed around the center tension line and surrounding the center tension line;
A first tube surrounding the optical fibers;
A covering surrounding the first tube;
And a plurality of electric wires installed in the space between the first tube and the covering,
The central tension line is a photoelectric composite cable, characterized in that the outer peripheral surface is formed in a non-circular shape so as to expand the support region of the optical fiber. 제1항에 있어서, 상기 광섬유는 4개가 상호 인접되게 배치되어 있고,
상기 중심 인장선은 상기 유리 광섬유 각각의 외주면에 밀착지지될 수 있게 원주방향을 따라 내측으로 호형으로 인입되게 형성된 4개의 호형 내측밀착부분을 갖게 형성되어 있고, FRP소재로 형성되어 있고, 상기 광섬유는 유리 광섬유인 것을 특징으로 하는 광전복합 케이블.The method of claim 1, wherein four optical fibers are arranged adjacent to each other,
The central tension line is formed to have four arc-shaped inner contact portions formed to be inserted in an arc shape inward along the circumferential direction to be closely supported on the outer peripheral surface of each of the glass optical fibers, and is formed of an FRP material, and the optical fiber is Photoelectric composite cable, characterized in that the glass optical fiber. 제1항에 있어서, 상기 광섬유는 6개가 상호 인접되게 배치되어 있고,
상기 중심 인장선은
상기 광섬유 각각의 외주면에 밀착지지될 수 있게 원주방향을 따라 내측으로 호형으로 인입되게 형성된 6개의 호형 내측밀착부분을 갖게 형성되어 있고, FRP소재로 형성되어 있고, 상기 광섬유는 유리 광섬유인 것을 특징으로 하는 광전복합 케이블.The method of claim 1, wherein the optical fibers are arranged adjacent to each other six,
The central tension line is
It is formed to have six arc-shaped inner contact portions formed to be inserted in an arc shape inward along the circumferential direction so that it can be closely supported on the outer circumferential surface of each of the optical fibers, and is formed of an FRP material, and the optical fiber is a glass optical fiber. Photoelectric composite cable. 제3항에 있어서, 상기 제1튜브는
상기 광섬유 각각의 외주면을 호형으로 에워싸게 상기 중심 인장선으로부터 멀어지는 방향으로 호형으로 인입되게 형성된 6개의 호형 외측 밀착부분을 갖게 형성되어 있고,
상기 제1튜브 내에 폐궤도로 형성되며 전기 전도성 소재로 형성된 링형부분과, 상기 링형부분에서 상기 호형 외측 밀착부분들 사이의 경계부분을 통해 방사상으로 상기 제1튜브 외부로 돌출되게 연장되며 전기전도성 소재로 형성된 아암부분을 갖는 전자파 차폐체;를 더 구비하는 것을 특징으로 하는 광전복합 케이블.The method of claim 3, wherein the first tube
It is formed to have six arc-shaped outer contact portions formed to be arc-shaped in a direction away from the central tension line to surround the outer peripheral surface of each optical fiber in an arc shape,
The first tube is formed as a closed orbit and extends radially out of the first tube through a ring-shaped portion formed of an electrically conductive material, and a boundary portion between the arc-shaped outer contact portions in the ring-shaped portion, and extends to the outside of the first tube. Electromagnetic wave shielding body having an arm portion formed of a; photoelectric composite cable, characterized in that it further comprises. 제4항에 있어서, 상기 피복은
LSZH 메인소재 83 내지 88중량%, 테프론 4 내지 6중량%, 폴리옥시메틸렌 3 내지 4중량%, 몰리브덴 0.5 내지 0.7중량%, LiO2 1 내지 2중량%와, Na2O3 1 내지 3중량% 및 ZrO2 1 내지 3 중량%로 형성된 것을 특징으로 하는 광전 복합 케이블.




The method of claim 4, wherein the coating is
LSZH main material 83 to 88 wt%, Teflon 4 to 6 wt%, polyoxymethylene 3 to 4 wt%, molybdenum 0.5 to 0.7 wt%, LiO 2 1 to 2% by weight and Na 2 O 3 1 to 3% by weight and ZrO 2 photoelectric composite cable, characterized in that formed of 1 to 3% by weight.
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN117310915A (en) * 2023-11-28 2023-12-29 江苏中天科技股份有限公司 Light low-friction flame-retardant optical cable

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20120124139A (en) * 2011-05-03 2012-11-13 에쓰이에이치에프코리아 (주) Optical electrical hybrid cable
US20160211055A1 (en) * 2004-11-06 2016-07-21 Cable Components Group, Llc High performance support-separators for communications cables providing shielding for minimizing alien crosstalk
KR20180086920A (en) * 2017-01-24 2018-08-01 조선대학교산학협력단 Optical fiber and power line composite cable

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20160211055A1 (en) * 2004-11-06 2016-07-21 Cable Components Group, Llc High performance support-separators for communications cables providing shielding for minimizing alien crosstalk
KR20120124139A (en) * 2011-05-03 2012-11-13 에쓰이에이치에프코리아 (주) Optical electrical hybrid cable
KR20180086920A (en) * 2017-01-24 2018-08-01 조선대학교산학협력단 Optical fiber and power line composite cable

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN117310915A (en) * 2023-11-28 2023-12-29 江苏中天科技股份有限公司 Light low-friction flame-retardant optical cable
CN117310915B (en) * 2023-11-28 2024-02-02 江苏中天科技股份有限公司 Light low-friction flame-retardant optical cable

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