KR20130120963A - Air blown fiber optic cable - Google Patents

Air blown fiber optic cable Download PDF

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Publication number
KR20130120963A
KR20130120963A KR1020120059845A KR20120059845A KR20130120963A KR 20130120963 A KR20130120963 A KR 20130120963A KR 1020120059845 A KR1020120059845 A KR 1020120059845A KR 20120059845 A KR20120059845 A KR 20120059845A KR 20130120963 A KR20130120963 A KR 20130120963A
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South Korea
Prior art keywords
loose tube
optical fiber
optical cable
outer jacket
pneumatic
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KR1020120059845A
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Korean (ko)
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박인환
김재민
박인철
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글로벌광통신 (주)
(주)지오테크놀러지
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Publication of KR20130120963A publication Critical patent/KR20130120963A/en

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    • 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
    • G02B6/46—Processes or apparatus adapted for installing or repairing optical fibres or optical cables
    • G02B6/50—Underground or underwater installation; Installation through tubing, conduits or ducts
    • G02B6/52—Underground or underwater installation; Installation through tubing, conduits or ducts using fluid, e.g. air
    • 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
    • G02B6/44—Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
    • G02B6/4401—Optical cables
    • G02B6/4429—Means specially adapted for strengthening or protecting the cables
    • G02B6/44384—Means specially adapted for strengthening or protecting the cables the means comprising water blocking or hydrophobic materials
    • 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
    • G02B6/44—Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
    • G02B6/4479—Manufacturing methods of optical cables
    • G02B6/4483—Injection or filling devices
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
    • H02G1/00—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines
    • H02G1/06—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines for laying cables, e.g. laying apparatus on vehicle
    • H02G1/08—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines for laying cables, e.g. laying apparatus on vehicle through tubing or conduit, e.g. rod or draw wire for pushing or pulling
    • H02G1/086—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines for laying cables, e.g. laying apparatus on vehicle through tubing or conduit, e.g. rod or draw wire for pushing or pulling using fluid as pulling means, e.g. liquid, pressurised gas or suction means

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Light Guides In General And Applications Therefor (AREA)
  • Electric Cable Installation (AREA)

Abstract

The present invention relates to an air pressure laying optical cable and comprises; an optical fiber; a loose tube which surrounds the optical fiber and forms a filling space in a gap with the optical fiber and is made of polycarbonate; a waterproof filter which is filled in the filling space within the loose tube; an external jacket which is coated on the outer side of the loose tube. The air pressure laying optical cable suppresses the twist of the optical fiber accepted in the inner side by the loose tube made of the polycarbonate and performs long distance paving by air pressure with a low friction factor of the external jacket made of a nylon material and suppresses the breakage by a white ant.

Description

공기압 포설용 광케이블{air blown fiber optic cable}Air blown fiber optic cable

본 발명은 공기압 포설용 광케이블에 관한 것으로서, 상세하게는 마이크로덕트와 같은 좁은 광선로에 공기압으로 포설할 수 있도록 된 공기압 포설용 광케이블에 관한 것이다.BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an optical cable for pneumatic installation, and more particularly, to an optical cable for pneumatic installation that can be installed in pneumatically in a narrow optical path such as a microduct.

광섬유를 포설하는 방법으로 광섬유를 여러 가닥으로 묶거나 꼬아서 케이블화 한 다음 케이블 상태로 포설하는 방법이 주로 사용되었다. 이러한 케이블 포설 방법은 일반적으로 추후의 수요를 예측하여 포설 시점에서 필요한 것보다 훨씬 많은 양의 광섬유를 미리 포설한다.As the method of laying the optical fiber, the method of laying the fiber in several strands or twisting the cable and then laying it in the cable state was mainly used. These cable laying methods generally pre-wire much larger amounts of fiber than are needed at the time of laying, anticipating future demand.

그러나, 새로운 통신 환경의 요구에 따라 필요한 광섬유의 종류가 다변화되고 제한된 광섬유 포설 환경에서도 통신용량에 적절히 대응할 수 있는 고성능 통신 시스템들이 개발됨에 따라, 단순히 미래의 수요를 예측하여 광섬유를 다량으로 포설해두는 것은 바람직하다고 볼 수 없다. 특히, 사용자측 말단 즉, 엑세스 네트워크(Accessnetwork) 부분이나 프리마이즈 와이어링(Premise wiring) 측면에서는 향후의 광섬유 혹은 광케이블의 형식을 현재 시점에서 결정할 수 없으므로 많은 비용을 들여 광섬유 케이블을 미리 다량으로 포설하게 되면 향후 광섬유 혹은 광케이블의 형식이 변경될 경우 경제적 낭비가 초래되는 문제가 있다. However, according to the demand of new communication environment, the type of optical fiber is diversified, and as high performance communication systems are developed that can cope with the communication capacity even in a limited optical fiber installation environment, it is possible to simply install a large amount of optical fiber by predicting future demand. Is not desirable. In particular, at the end of the user, that is, the access network part or the premise wiring, it is impossible to determine the type of future optical fiber or optical cable at the present time. If the type of optical fiber or optical cable is changed in the future, there is a problem that economic waste is caused.

이와 같은 문제를 해결하기 위해, 최근에는 다수의 광섬유 가닥을 포함하는 광케이블을 공기압을 이용하여 포설 하는 방법이 널리 사용되고 있다. 공기압 포설 방법은 특별한 조성과 단면 형상을 갖는 마이크로 튜브(Micro tube) 또는 덕트(duct)라고 불리는 고분자 재질의 튜브를 광케이블 포설 지점에 미리 설치한 뒤, 그 내부로 공기압 포설용 광케이블을 공기압을 이용하여 불어넣어 광케이블을 포설하는 방법이다. 이러한 공기압 포설 공법에 의해 광케이블을 포설하게 되면 광케이블의 포설과 제거가 용이하고, 초기 설치 비용이 절감되며, 향후 성능보완도 용이한 이점이 있다. 이러한 공기압 포설 공법에서 사용되는 포설장치는 구동롤러와 가압수단을 사용하여 광케이블을 광케이블 공급부로부터 송풍헤드의 출구에 연결된 마이크로 덕트내로 연속적으로 인입시키면서 가압수단을 이용하여 송풍헤드의 출구 측으로 압축공기를 불어 넣는다. 그러면, 출구측으로 압축공기가 빠른 유속으로 흐르게 되고, 이에 따라 송풍헤드로 유입된 광케이블이 압축공기의 유체 견인력에 의해 마이크로 덕트내에 포설된다.In order to solve such a problem, in recent years, a method of laying an optical cable including a plurality of optical fiber strands using air pressure has been widely used. Pneumatic laying method is to pre-install a polymer tube called a micro tube or duct having a special composition and cross-sectional shape in advance at an optical cable installation point, and then install the pneumatic optical fiber cable using air pressure therein. It is a method to install optical cable by blowing. When the optical cable is laid by the pneumatic laying method, the optical cable can be easily installed and removed, the initial installation cost can be reduced, and the performance can be easily supplemented in the future. The laying apparatus used in the pneumatic laying method uses a driving roller and pressurizing means to blow compressed air to the outlet side of the blowing head using pressurizing means while continuously introducing the optical cable from the optical cable supply into the micro duct connected to the outlet of the blowing head. Put it in. Then, compressed air flows to the outlet side at a high flow rate, whereby the optical cable introduced into the blowing head is installed in the micro duct by the fluid traction force of the compressed air.

상술한 바와 같이 공기압에 의해 포설되는 통상적인 공기압 포설용 광케이블은 국내 등록특허 제10-0464365호에 개시된 바와 같이 루즈튜브 내에 아라미드 얀을 삽입한 구조로 되어 있어 제조가 복잡하며 공기압에 의한 포설 가능 길이를 길게 할 수 없는 구조적인 문제점이 있다.As described above, a conventional pneumatic laying optical cable laid by pneumatic pressure has a structure in which aramid yarn is inserted into a loose tube as disclosed in Korean Patent No. 10-0464365, which is complicated to manufacture and can be laid by pneumatic pressure. There is a structural problem that cannot be lengthened.

한편, 루즈튜브의 경우에도 내장된 광섬유의 꼬임을 억제하면서도 직진성을 높일 수 있는 구조가 요구된다.On the other hand, even in the case of the loose tube is required a structure that can increase the straightness while suppressing the twist of the embedded optical fiber.

본 발명은 상기와 같은 문제점을 개선하기 위하여 창안된 것으로서, 상세하게는 공기압 포설가능길이를 증대시킬 수 있는 공기압 포설용 광케이블을 제공하는데 그 목적이 있다.The present invention was devised to improve the above problems, and an object thereof is to provide an optical cable for pneumatic installation, which can increase the pneumatic installation length in detail.

상기의 목적을 달성하기 위하여 본 발명에 따른 공기압 포설용 광케이블은 광섬유와; 상기 광섬유를 에워싸며 상기 광섬유와의 사이에 충진공간을 형성하며 폴리카보네이트로 형성된 루즈튜브와; 상기 루즈튜브 내의 충진공간에 충진된 방수충진물과; 상기 루즈튜브 외측에 피복된 외부자켓;을 구비한다.In order to achieve the above object, the optical cable for pneumatic installation according to the present invention includes an optical fiber; A loose tube surrounding the optical fiber and forming a filling space therebetween and formed of polycarbonate; A waterproof filler filled in the filling space in the loose tube; And an outer jacket coated on the outside of the loose tube.

본 발명의 일 측면에 따르면, 상기 외부자켓의 재질은 나일론이며, 외경은 2.0mm 내지 2.5mm이고, 상기 루즈튜브의 외경은 1.8mm 내지 2.3mm이며 투명색상으로 형성되어 있고, 상기 방수충진물은 젤리컴파운드가 적용된다.According to an aspect of the present invention, the outer jacket is made of nylon, the outer diameter is 2.0mm to 2.5mm, the outer diameter of the loose tube is 1.8mm to 2.3mm and formed in a transparent color, the waterproof filler is jelly Compound is applied.

본 발명의 또 다른 측면에 따르면, 상기 외부자켓과 상기 루즈튜브 사이에 섬유사로 충진된 섬유사층을 더 구비하고, 상기 외부자켓은 폴리에틸렌 소재로 형성된 것을 특징으로 하는 공기압 포설용 광케이블.According to another aspect of the present invention, the outer jacket and the loose tube further comprises a fiber yarn layer filled with fiber yarn, wherein the outer jacket is pneumatic laying optical cable, characterized in that formed of polyethylene material.

본 발명에 따른 공기압 포설용 광케이블에 의하면, 폴리카보네이트 소재로 된 루즈튜브에 의해 내부에 수용된 광섬유의 꼬임이 억제되고 강성도(stiffness) 증가로 포설 속도 및 포설가능한 거리를 증가시키고, 나일론 소재로 된 외부자켓의 낮은 마찰계수에 의해 공기압에 의한 장거리 포설이 가능하고, 흰개미에 의한 파손을 억제할 수 있는 장점을 제공한다.According to the optical cable for pneumatic laying according to the present invention, the twisting of the optical fiber contained therein is suppressed by the loose tube made of polycarbonate, and the laying speed and the installable distance are increased by increasing the stiffness, and the outer made of nylon The low friction coefficient of the jacket enables long-distance installation by pneumatic pressure and provides the advantage of suppressing damage by termites.

도 1은 본 발명의 제1실시 예에 따른 공기압 포설용 광케이블의 단면도이고,
도 2는 본 발명의 제2실시 예에 따른 공기압 포설용 광케이블의 단면도이다.1 is a cross-sectional view of an optical cable for pneumatic installation according to a first embodiment of the present invention,
2 is a cross-sectional view of an optical cable for pneumatic installation according to a second embodiment of the present invention.

이하, 첨부된 도면을 참조하면서 본 발명의 바람직한 실시 예에 따른 공기압 포설용 광케이블을 더욱 상세하게 설명한다.Hereinafter, with reference to the accompanying drawings will be described in more detail an optical cable for pneumatic installation according to a preferred embodiment of the present invention.

도 1은 본 발명의 제1실시 예에 따른 공기압 포설용 광케이블의 단면도이다.1 is a cross-sectional view of an optical cable for pneumatic installation according to a first embodiment of the present invention.

도 1을 참조하면, 본 발명에 따른 공기압 포설용 광케이블(10)은 광섬유(11), 방수충진물(13), 루즈튜브(15) 및 외부자켓(17)을 구비한다.Referring to FIG. 1, the optical cable for pneumatic installation according to the present invention includes an optical fiber 11, a waterproof filler 13, a loose tube 15, and an outer jacket 17.

광섬유(11)는 적어도 하나 이상이 적용될 수 있다.At least one or more optical fibers 11 may be applied.

또한, 광섬유(11)는 싱글모드, 멀티모드 등 다양한 광섬유가 적용이 가능하고, 적용 개수는 2개 내지 12개가 적용된다.In addition, the optical fiber 11 can be applied to a variety of optical fibers, such as single mode, multi-mode, the number of applications is applied to 2 to 12.

루즈튜브(15)는 튜브형상으로 형성되어 광섬유(11)와의 사이에 충진공간을 형성하여 광섬유(11)를 에워싸며 투명색상의 폴리카보네이트(PC;polycabonate)로 형성된다.The loose tube 15 is formed in a tube shape to form a filling space between the optical fiber 11 to surround the optical fiber 11 and is formed of a transparent polycarbonate (PC; polycabonate).

폴리카보네이트로 형성되는 루즈튜브(15)는 경질이면서도 수축율이 낮고 경도가 높아 공기압에 의한 포설시 직진성을 향상시켜 꼬임 포설가능 길이를 증대시키는 기능을 한다.The loose tube 15 formed of polycarbonate has a function of increasing the twistable installation length by improving the straightness when laying by air pressure due to its high rigidity and low shrinkage rate and high hardness.

루즈튜브(15)의 두께는 0.45mm 내지 0.55mm, 외경은 2.3mm 이하 바람직하게는 1.8mm 내지 2.3mm로 형성되는 것이 바람직하다.The thickness of the loose tube 15 is 0.45mm to 0.55mm, the outer diameter is preferably 2.3mm or less, preferably 1.8mm to 2.3mm.

방수 충진물(13)은 루즈튜브(15) 내의 충진공간에 충진되게 삽입되며, 젤리 컴파운트가 적용될 수 있고, 일 예로서 다우케이컬에서 생산하는 상품명 DW-OP200의 젤리 컴파운트를 적용하여도 된다.The waterproof filler 13 is inserted to be filled in the filling space in the loose tube 15, and a jelly compound may be applied. For example, by applying the jelly compound of the brand name DW-OP200 produced by Dow Cal, You may also

이러한 젤리 컴파운드는 베이스 오일 60 내지 70중량%, 합성오일(Synthetic Oil) 20 내지 30중량%, 에스이피 코폴리머(SEP Copolymer) 5 내지 10중량%, 접착제 0.5 내지 1.0중량%로 형성되어 점도 35,000 내지 52,000CPS를 갖는 것을 적용할 수 있다.The jelly compound is formed of 60 to 70% by weight of base oil, 20 to 30% by weight of synthetic oil, 5 to 10% by weight of SEP copolymer, 0.5 to 1.0% by weight of adhesive, and has a viscosity of 35,000 to One with 52,000 CPS is applicable.

외부자켓(17)은 루즈튜브(15) 외측에 피복되어 튜브 형상으로 형성된 것으로서, 마찰계수가 낮으며 흰개미에 의한 파손을 억제할 수 있는 나일론 소재 바람직하게는 나일론 12로 명명된 재질을 이용하여 형성하는 것이 바람직하다.The outer jacket 17 is formed on the outside of the loose tube 15 and formed in a tube shape. The outer jacket 17 is formed of a nylon material having a low friction coefficient and capable of suppressing damage by termites. It is desirable to.

여기서, 외부자켓(17)의 외경은 루즈튜브(15)가 수용될 수 있는 범위내에서 2.0mm 내지 2.5mm로 형성되는 것이 바람직하다.Here, the outer diameter of the outer jacket 17 is preferably formed of 2.0mm to 2.5mm within the range that the loose tube 15 can be accommodated.

이러한 광케이블(10)은 폴리카보네이트 소재로 된 루즈튜브(15)에 의해 내부에 수용된 광섬유(11)의 꼬임이 억제되면서 나일론 소재로 된 외부자켓(17)의 낮은 마찰계수에 의해 공기압에 의한 장거리 포설이 가능하고, 흰개미에 의한 파손을 억제할 수 있는 장점을 제공한다.The optical cable 10 is installed in a long distance by the air pressure by the low friction coefficient of the outer jacket 17 made of nylon while suppressing the twist of the optical fiber 11 accommodated therein by the loose tube 15 made of polycarbonate This is possible and provides the advantage of suppressing breakage by termites.

한편, 외부자켓(17)과 루즈튜브(15) 사이에 섬유사 층을 갖는 구조로 형성될 수 있고 그 예가 도 2에 도시되어 있다. 앞서 도시된 도면에서와 동일 기능을 하는 요소는 동일 참조부호로 표기한다.On the other hand, it may be formed of a structure having a fiber yarn layer between the outer jacket 17 and the loose tube 15, an example of which is shown in FIG. The same reference numerals denote the same elements as those in the drawings.

도 2를 참조하면, 공기압 포설용 광케이블(10)은 광섬유(11), 방수충진물(13), 루즈튜브(15), 섬유사층(19) 및 외부자켓(27)을 구비한다.Referring to FIG. 2, the pneumatically laid optical cable 10 includes an optical fiber 11, a waterproof filler 13, a loose tube 15, a fiber yarn layer 19, and an outer jacket 27.

섬유사층(19)은 외부자켓(27)과 루즈튜브(15) 사이에 섬유사로 충진되어 있고, 섬유사는 아라미드얀(Aramid yarn)이 적용되는 것이 바람직하다.The fiber yarn layer 19 is filled with a fiber yarn between the outer jacket 27 and the loose tube 15, and the fiber yarn is preferably aramid yarn (Aramid yarn) is applied.

또한, 외부자켓(27)은 폴리에틸렌 소재 더욱 바람직하게는 고밀도 폴리에틸렌(HDPE)소재로 형성될 수 있다.In addition, the outer jacket 27 may be formed of a polyethylene material, more preferably a high density polyethylene (HDPE) material.

또한, 외부자켓(27)의 외경은 3.9mm 내지 4.1mm를 갖으며 두께는 0.74mm 내지 0.76mm로 형성되는 것이 바람직하다.In addition, it is preferable that the outer diameter of the outer jacket 27 has a thickness of 3.9mm to 4.1mm and a thickness of 0.74mm to 0.76mm.

또한, 섬유사층(19) 내에는 하나의 립코드(21)가 삽입되어 있다. 립코드는 섬유사를 꼬아 만든 것을 적용하면 된다. In addition, one lip cord 21 is inserted into the fiber yarn layer 19. The lip cord can be made by twisting fiber yarns.

11: 광섬유 13: 방수충진물
15: 루즈튜브 19: 섬유사층
17, 27: 외부자켓11: fiber optic 13: waterproof filler
15: loose tube 19: fiber yarn layer
17, 27: outer jacket

Claims (3)

공기압 포설용 광케이블에 있어서,
광섬유와;
상기 광섬유를 에워싸며 상기 광섬유와의 사이에 충진공간을 형성하며 폴리카보네이트로 형성된 루즈튜브와;
상기 루즈튜브 내의 충진공간에 충진된 방수충진물과;
상기 루즈튜브 외측에 피복된 외부자켓;을 구비하는 것을 특징으로 하는 공기압 포설용 광케이블.In pneumatic optical fiber cable,
Optical fiber;
A loose tube surrounding the optical fiber and forming a filling space therebetween and formed of polycarbonate;
A waterproof filler filled in the filling space in the loose tube;
And an outer jacket coated on the outside of the loose tube. 제1항에 있어서, 상기 외부자켓의 재질은 나일론이며, 외경은 2.0mm 내지 2.5mm이고, 상기 루즈튜브의 외경은 1.8mm 내지 2.3mm이며 투명색상으로 형성되어 있고, 상기 방수충진물은 젤리컴파운드인 것을 특징으로 하는 공기압 포설용 광케이블.According to claim 1, wherein the outer jacket is made of nylon, the outer diameter is 2.0mm to 2.5mm, the outer diameter of the loose tube is 1.8mm to 2.3mm is formed in a transparent color, the waterproofing material is a jelly compound Optical cable for pneumatic installation, characterized in that. 제1항에 있어서, 상기 외부자켓과 상기 루즈튜브 사이에 섬유사로 충진된 섬유사층을 더 구비하고, 상기 외부자켓은 폴리에틸렌 소재로 형성된 것을 특징으로 하는 공기압 포설용 광케이블.The optical cable for pneumatic installation according to claim 1, further comprising a fiber yarn layer filled with fiber yarn between the outer jacket and the loose tube, wherein the outer jacket is formed of polyethylene material.
KR1020120059845A 2012-04-26 2012-06-04 Air blown fiber optic cable KR20130120963A (en)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3198318A1 (en) * 2014-09-25 2017-08-02 Draka Comteq BV An optical cable with retractable modules and a method for producing said modules
CN110208919A (en) * 2019-07-03 2019-09-06 山东承坤信息科技有限公司 A kind of 5G communications optical cable
CN110333586A (en) * 2019-07-03 2019-10-15 高明 A kind of 5G communication chief Shouguang cable
KR20200013342A (en) * 2018-07-30 2020-02-07 지오씨 주식회사 An extruder for controlling the position and center line of the optical cable

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3198318A1 (en) * 2014-09-25 2017-08-02 Draka Comteq BV An optical cable with retractable modules and a method for producing said modules
US10393975B2 (en) 2014-09-25 2019-08-27 Draka Comteq B.V. Optical cable with retractable modules and a method for producing said modules
US10598879B2 (en) 2014-09-25 2020-03-24 Draka Comteq B.V. Optical cable with retractable modules and a method for producing said modules
AU2014407441B2 (en) * 2014-09-25 2020-06-11 Draka Comteq Bv An optical cable with retractable modules and a method for producing said modules
EP3198318B1 (en) * 2014-09-25 2023-06-07 Prysmian S.p.A. An optical cable with retractable modules and a method for producing said modules
KR20200013342A (en) * 2018-07-30 2020-02-07 지오씨 주식회사 An extruder for controlling the position and center line of the optical cable
CN110208919A (en) * 2019-07-03 2019-09-06 山东承坤信息科技有限公司 A kind of 5G communications optical cable
CN110333586A (en) * 2019-07-03 2019-10-15 高明 A kind of 5G communication chief Shouguang cable

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