CN1206557C - 有铠装套管的光缆 - Google Patents
有铠装套管的光缆 Download PDFInfo
- Publication number
- CN1206557C CN1206557C CN01140885.5A CN01140885A CN1206557C CN 1206557 C CN1206557 C CN 1206557C CN 01140885 A CN01140885 A CN 01140885A CN 1206557 C CN1206557 C CN 1206557C
- Authority
- CN
- China
- Prior art keywords
- optical cable
- sleeve pipe
- armouring
- cable
- armouring sleeve
- 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
- 230000003287 optical effect Effects 0.000 title claims description 30
- 239000011241 protective layer Substances 0.000 title 1
- 229910052751 metal Inorganic materials 0.000 claims abstract description 16
- 239000002184 metal Substances 0.000 claims abstract description 16
- 230000037303 wrinkles Effects 0.000 claims description 13
- 238000012360 testing method Methods 0.000 claims description 6
- 238000000034 method Methods 0.000 claims description 3
- 238000000465 moulding Methods 0.000 claims 1
- 238000005452 bending Methods 0.000 abstract description 14
- 239000000463 material Substances 0.000 abstract description 6
- 239000000835 fiber Substances 0.000 abstract description 3
- 229910000831 Steel Inorganic materials 0.000 description 12
- 239000010959 steel Substances 0.000 description 12
- 206010040954 Skin wrinkling Diseases 0.000 description 11
- 239000013307 optical fiber Substances 0.000 description 4
- 230000000750 progressive effect Effects 0.000 description 4
- 238000000576 coating method Methods 0.000 description 2
- 238000000280 densification Methods 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 210000003195 fascia Anatomy 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000002787 reinforcement Effects 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- HGAZMNJKRQFZKS-UHFFFAOYSA-N chloroethene;ethenyl acetate Chemical compound ClC=C.CC(=O)OC=C HGAZMNJKRQFZKS-UHFFFAOYSA-N 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 229920001577 copolymer Polymers 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000012938 design process Methods 0.000 description 1
- FPAFDBFIGPHWGO-UHFFFAOYSA-N dioxosilane;oxomagnesium;hydrate Chemical compound O.[Mg]=O.[Mg]=O.[Mg]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O FPAFDBFIGPHWGO-UHFFFAOYSA-N 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 229920001038 ethylene copolymer Polymers 0.000 description 1
- 238000013003 hot bending Methods 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
Images
Classifications
-
- 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
- G02B6/443—Protective covering
- G02B6/4432—Protective covering with fibre reinforcements
- G02B6/4433—Double reinforcement laying in straight line with optical transmission element
Abstract
利用非皱纹铠装管制造光缆,非皱纹铠装管可以减少铠装过程所需的材料而且可以保持足够的光缆柔性。铠装管的外径(OD)与绕着铠装管设置的外部套管和介入层的厚度(t)之间的关系是这样的,即2t≤OD≤10t。如果铠装管由金属带制成,只要外径小于10t,就可以获得足够的柔性。铠装管与外部套管非紧密地粘合在一起以保持柔性,并且保持弯曲应变小于光缆最大弯曲应变的87.5%。
Description
技术领域
本发明涉及包括用于保持光缆的柔性和机械强度的铠装套管的小直径光缆。
背景技术
第一种类型的传统电缆包括铠装套管,铠装套管绕着一条或多条传递信号的光纤设置以保护光纤同时又可以保持光缆具有足够柔性。铠装套管通常包括皱纹金属。然而,使用皱纹材料会增加对给定长度的光纤进行防护所需的材料量,并进一步增加光缆的直径和重量。皱纹材料还需要额外的处理步骤,因此增加了制造时间,并进一步增加了金属铠装在皱纹处理期间被损坏的可能性。
作为第二种传统光缆,采用焊接钢管铠装光纤。然而,生产焊接钢管的过程非常复杂且非常慢,因此增加了制造成本。焊接钢管具有性能优势,例如较好的结构集成度。然而,焊接钢管还具有附带缺点,例如降低柔性。
作为第三种传统光缆,将平(非皱纹)钢带接合到光缆套管。然而,接合成这种传统的光缆不能提供可以通过工业挠曲测试的柔性。具体地说,因为不能将套管与铠装带之间的接合做得均匀,所以在接合力弱的位置会产生局部应力累积。这样接合的平钢带在光缆铠装内引入了高得不可接受的局部弯曲应力。
发明内容
本发明克服了上述缺陷。本发明人观察到,通过使特定光缆直径的铠装套管的直径与套管的厚度的比值保持在预定范围内,非皱纹铠装带可以满足必要的行业标准。此比值使得挠曲符合行业标准同时在抗压实验和抗拉实验中保持足够的光缆阻力。
本发明提供一种光缆,该光缆包括:铠装套管;外部分层,绕着铠装套管的圆周设置,其中铠装套管的外径为OD,外部分层的厚度为t1,并且其中OD≤10t1。其中铠装套管包括被成型为圆筒形的非皱纹金属带,该金属带具有20,000,000lbs/in2或更高的模量。
附图说明
以下将参考附图对本发明的优选实施例进行说明,附图包括:
图1(a)和图1(b)示出用于解释根据本发明的优选实施例的结构的铠装光缆的断面图;以及
图2示出用于解释根据本发明的优选实施例的作为管径与壁厚的比值的函数的弯曲应变。
具体实施方式
参考图1(a),根据本发明的光缆包括被成型为外径为OD的圆筒形的铠装带11。铠装带可以包括也可以不包括钢带两端接合的重叠部分。某种程度的钢带重叠有助于铠装结构挠曲。然而,还可以将圆筒形铠装结构成型为无缝套管。铠装套管套着一条或多条光纤(未示出)。铠装材料包括金属,并且优先包括许多种批量生产的钢带之一,它们方便使用并可以容易地转变为铠装套管。各种销售商市售的钢带的厚度接近0.1mm至0.15mm。钢的弹性模量通常为30,000,000lbs/in2,而铝的弹性模量通常为10,000,000lbs/in2,铜的弹性模量通常为15,000,000-17,000,000lbs/in2。包括光缆套管在内的外壁的厚度为t1。可以在铠装套管的外部为光缆设置一个或多个径向加强件RSM 11或中介层X 13(参考图1(b))。
在图1(b)中,厚度t1包括套管本身的厚度和任何中介层X 13的厚度。中介层X 13可以包括一个和多个缓冲管、附加铠装套管对、编织带、绞合纱、或其它加强件。可以以任何组合方式提供这些层。铠装套管10的外径OD与外层(2t1)壁厚之和通常被系统设计者规定为光缆直径CD。已经确定对于特定CD,OD与壁厚t1之间的比值可以这样发生变化以致非皱纹金属铠装可以提供足够弯曲,例如光缆柔性并可以提供足够防护以满足通常应用的光缆敷设标准。
在优选实施例中,当使用无缝管时,铠装套管的直径OD将在2至10倍于壁厚或通过铠装的总组成厚度(t1)范围内(2t1≤OD≤10t1)。下限规定一般用途的实际应用极限,而上限描述特定弯曲应变特性。铠装套管直径的此厚度范围提供弯曲应变,弯曲应变是对弯曲阻力的测量,当弯曲应变达到渐进最大值时它小于该渐进最大值的87.5%。当将钢带成型为圆筒形用于进行铠装时,如果OD≤10t1,则可以保持足够的挠曲。
图2示出本发明人认为的弯曲应变与铠装套管尺寸之间的关系。此曲线图是对系统设计过程规定的任何光缆直径(CD)绘制的。典型的光缆直径在四分之一英尺到大于一英尺的范围内。图2所示的3条曲线对应于对光缆测试的3个不同的曲率。所示的是10×CD弯曲曲线、15×CD弯曲曲线以及20×CD弯曲曲线。如图2所示,当管径与两倍壁厚的比值接近20(例如OD接近40t1)时,即使铠装套管与壁厚的比值增加,仍不会明显提高弯曲应变。这实质上是对特定弯曲应变曲线定义了一个渐进最大值。在小于此渐进最大值87.5%的区域内,光缆的柔性足可以通过行业标准的要求。水平灰色带所示的区域示出对应于在一般用途应用中实际使用的OD值区域。特定用途应用也是可以的,在此OD∶2t1的比值小于灰色带所示的区域。当这些尺寸判据均满足时,铠装套管足可以支持光缆的弯曲。
还可以进一步观察到,当将第二铠装套管作为图1(b)所示的介入层X 13设置时,可以将OD与t1的上述关系应用于外径ODx与外提供厚度t2。更具体地说,当X 13包括被成型为圆筒形的钢带时,第二铠装套管的直径ODx应满足下列不等式ODx≤10t2。如果不满足此条件,则为了使光缆支持足够弯曲,铠装套管X 13应是皱纹的。如果满足不等式ODx≤10t2,则要求非皱纹钢带。同样,当铠装套管X包括由钢管制成的第二铠装套管时,则满足条件2t2≤ODx≤10t2就省去了对皱纹铠装套管X的要求。如果未满足此条件,则为了支持足够的挠曲要求皱纹钢带。
作为本发明的附加特性,本申请人观察到,在挠曲期间,铠装套管10与光缆套管11之间的致密接合会引起光缆铠装带损坏。应用于电信光缆的市售金属带通常包括乙烯共聚物涂层,它有助于外部光缆套管与金属接合在一起,外部光缆套管11通常由聚乙烯制成。然而,非皱纹金属带与光缆套管之间的致密连接会在光缆挠曲期间将应力集中引入金属带,它会使光缆不适于标准商业应用或工业应用。本申请人确定通过在铠装带上设置共聚物涂层,在进行处理期间对铠装带喷EAA或类似涂层;或者通过应用滑石粉或类似材料以降低粘合性并对接合进行控制,可以对粘合或接合强度进行控制。为了通过根据REAPE-90的纵向测试,要求接合力在10-470N/m的范围内;而为了通过根据REA PE-39、PE 84、PE 89的圆周测试,要求接合力在10-1750N/m范围内。这些接合力比通常使用的约几千N/m的铠装套管接合力明显减小。本发明的优选实施例已经通过了在GR20要求和TIA/EIA FOTP测试程序中描述的低温弯曲、高温弯曲、循环挠曲、拉伸以及弯曲的其它行业标准。
尽管对本发明的优选实施例进行了说明,但是本技术领域内的熟练技术人员明白,在本发明的实质范围内还可以对其进行调整。
Claims (9)
1.一种光缆,该光缆包括:
铠装套管(10);
外部分层(11),绕着铠装套管(10)的圆周设置,
其中铠装套管(10)的外径为OD,外部分层(11)的厚度为t1,并且其中OD≤10t1。
2.根据权利要求1所述的光缆,其中铠装套管(10)包括非皱纹金属管。
3.根据权利要求1所述的光缆,其中铠装套管(10)包括被成型为圆筒形的非皱纹金属带。
4.根据权利要求3所述的光缆,其中在成型所述铠装套管(10)的过程中,金属带的第一纵向边与金属带的第二纵向边重叠一次。
5.根据权利要求3或4所述的光缆,其中金属带具有20,000,000lbs/in2或更高的模量。
6.根据权利要求1-4之一所述的光缆,其中所述外部分层(11)至少包括光缆套管、缓冲管、外部铠装层、绞合纱以及编织带之一。
7.根据权利要求1-4之一所述的光缆,其中OD≥2t1。
8.根据权利要求1-4之一所述的光缆,其中铠装套管(10)与外部分层(11)非紧固地粘合在一起并可以用力F分离,其中在纵向接合测试中10N/m≤F≤470N/m。
9.根据权利要求1-4之一所述的光缆,其中铠装套管(10)与外部分层(11)非紧固地粘合在一起并可以用力F分离,其中在圆周接合测试中10N/m≤F≤1750N/m。
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US09/689,886 | 2000-10-13 | ||
US09/689,886 US6665478B1 (en) | 2000-10-13 | 2000-10-13 | Fiber optic cable with non-corrugated armor shielding |
Publications (2)
Publication Number | Publication Date |
---|---|
CN1349119A CN1349119A (zh) | 2002-05-15 |
CN1206557C true CN1206557C (zh) | 2005-06-15 |
Family
ID=24770264
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN01140885.5A Expired - Fee Related CN1206557C (zh) | 2000-10-13 | 2001-09-25 | 有铠装套管的光缆 |
Country Status (6)
Country | Link |
---|---|
US (1) | US6665478B1 (zh) |
EP (1) | EP1197775B1 (zh) |
JP (1) | JP4810031B2 (zh) |
CN (1) | CN1206557C (zh) |
AT (1) | ATE441126T1 (zh) |
DE (1) | DE60139667D1 (zh) |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7471862B2 (en) * | 2002-12-19 | 2008-12-30 | Corning Cable Systems, Llc | Dry fiber optic cables and assemblies |
US7156522B2 (en) * | 2003-07-16 | 2007-01-02 | Plut William J | Projection-type display devices with reduced weight and size |
US7281807B2 (en) * | 2003-07-16 | 2007-10-16 | Honeywood Technologies, Llc | Positionable projection display devices |
US20070230879A1 (en) * | 2006-03-31 | 2007-10-04 | Mcalpine Warren W | Armored fiber optic cable having a centering element and methods of making |
US20090274426A1 (en) * | 2008-04-30 | 2009-11-05 | Lail Jason C | Fiber optic cable and method of manufacturing the same |
WO2010051334A1 (en) * | 2008-10-31 | 2010-05-06 | Corning Cable Systems Llc | Dual-jacket cable and transition elements and assemblies therefor |
WO2017205190A1 (en) | 2016-05-26 | 2017-11-30 | Corning Optical Communications LLC | Optical fiber cable with elongate strength member recessed in armor layer |
CA3045300A1 (en) | 2016-11-30 | 2018-06-07 | Corning Optical Communications LLC | Two piece armored optical cables |
Family Cites Families (28)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4054365A (en) | 1976-05-28 | 1977-10-18 | General Cable Corporation | Fiber optic cable construction |
IT1132798B (it) | 1980-09-29 | 1986-07-02 | Pirelli | Cavo ottico perfezionato |
FR2511161B1 (fr) | 1981-08-05 | 1986-04-04 | Foptica | Cable optique destine a supporter des pressions elevees |
NL8104667A (nl) | 1981-10-14 | 1983-05-02 | Nkf Groep Bv | Kabel voorzien van een bewapening. |
US4372792A (en) | 1981-10-15 | 1983-02-08 | Bicc Limited | Manufacture of a flexible stranded optical fiber body |
GB2164469B (en) | 1984-09-14 | 1988-12-21 | Stc Plc | Optical fibre cables |
EP0175419B1 (en) | 1984-09-18 | 1989-01-04 | Nkf Kabel B.V. | Signal transmission cable |
US4729629A (en) | 1987-02-26 | 1988-03-08 | Sumitomo Electric Research Triangle, Inc. | Bonded sheath cable with lubricant over seam |
DE3716871A1 (de) | 1987-05-20 | 1988-12-15 | Philips Patentverwaltung | Metallische schutzhuelle fuer lichtwellenleiter |
JPH031596U (zh) | 1989-05-26 | 1991-01-09 | ||
US5039197A (en) * | 1990-03-22 | 1991-08-13 | Northern Telecom Limited | Cable and tape structures therefor |
US5050957A (en) | 1990-04-27 | 1991-09-24 | At&T Bell Laboratories | Optical fiber service cable |
RU2007654C1 (ru) | 1991-04-29 | 1994-02-15 | Евгений Александрович Курочкин | Рукав, способ и устройство для его изготовления |
GB9125417D0 (en) | 1991-11-29 | 1992-01-29 | Bicc Plc | An improved communication cable |
US5212755A (en) * | 1992-06-10 | 1993-05-18 | The United States Of America As Represented By The Secretary Of The Navy | Armored fiber optic cables |
CA2106431A1 (en) * | 1992-09-30 | 1994-03-31 | Andrew S. Dodd | Magnetic locatable figure - 8 cable |
US5422973A (en) * | 1994-03-28 | 1995-06-06 | Siecor Corporation | Water blocked unfilled single tube cable |
US5509097A (en) * | 1994-04-07 | 1996-04-16 | Pirelli Cable Corporation | Optical fiber core and cable with reinforced buffer tube loosely enclosing optical fibers |
GB2295028B (en) | 1994-09-30 | 1996-11-20 | Bicc Plc | Optical fibre ribbon cable |
DE19525422A1 (de) | 1995-07-12 | 1997-01-16 | Siemens Ag | Kabel mit einer aus Stahl bestehenden Umhüllung sowie Verfahren und Einrichtung zur Herstellung desselben |
GB9616400D0 (en) | 1996-08-03 | 1996-09-11 | Limited | Electrical and optical cable |
US5920672A (en) * | 1997-06-05 | 1999-07-06 | Siecor Corporation | Optical cable and a component thereof |
US6014487A (en) * | 1997-06-30 | 2000-01-11 | Siecor Corporation | Fiber optic cable |
US6049647A (en) * | 1997-09-16 | 2000-04-11 | Siecor Operations, Llc | Composite fiber optic cable |
US6304701B1 (en) * | 1998-03-27 | 2001-10-16 | Corning Cable Systems Llc | Dry fiber optic cable |
US6377738B1 (en) * | 1998-12-04 | 2002-04-23 | Pirelli Cable Corporation | Optical fiber cable and core with a reinforced buffer tube having visible strength members and methods of manufacture thereof |
US6349161B1 (en) * | 1999-05-28 | 2002-02-19 | Tycom (Us) Inc. | Undersea communications cable having centrally located, plastic buffer tube |
US6317540B1 (en) * | 2000-02-02 | 2001-11-13 | Pirelli Cables & Systems, Llc | Energy cable with electrochemical chemical analyte sensor |
-
2000
- 2000-10-13 US US09/689,886 patent/US6665478B1/en not_active Expired - Fee Related
-
2001
- 2001-09-21 EP EP01402428A patent/EP1197775B1/en not_active Expired - Lifetime
- 2001-09-21 AT AT01402428T patent/ATE441126T1/de not_active IP Right Cessation
- 2001-09-21 DE DE60139667T patent/DE60139667D1/de not_active Expired - Lifetime
- 2001-09-25 CN CN01140885.5A patent/CN1206557C/zh not_active Expired - Fee Related
- 2001-09-27 JP JP2001295773A patent/JP4810031B2/ja not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
EP1197775B1 (en) | 2009-08-26 |
JP2002131598A (ja) | 2002-05-09 |
US6665478B1 (en) | 2003-12-16 |
EP1197775A3 (en) | 2004-04-21 |
EP1197775A2 (en) | 2002-04-17 |
CN1349119A (zh) | 2002-05-15 |
JP4810031B2 (ja) | 2011-11-09 |
ATE441126T1 (de) | 2009-09-15 |
DE60139667D1 (de) | 2009-10-08 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US4100008A (en) | Method of forming an optical waveguide cable | |
US6389204B1 (en) | Fiber optic cables with strength members and methods of making the same | |
CA1070251A (en) | Composite reinforced hose | |
US6654527B2 (en) | Optical fiber cable | |
US4645298A (en) | Optical fiber cable | |
US6606436B2 (en) | Strengthened fiber optic cable | |
US6483971B2 (en) | Optical-fiber cable containing thermally bonded fiber optic buffer tubes and fabrication process | |
JPS62144121A (ja) | 光フアイバ−通信ケ−ブル | |
US20100158457A1 (en) | Ruggedized, lightweight, and compact fiber optic cable | |
US20060291787A1 (en) | Fiber optic cable having strength component | |
CN1561465A (zh) | 光纤电缆 | |
US6931184B2 (en) | Dry tube fiber optic assemblies, cables, and manufacturing methods therefor | |
US20040151448A1 (en) | Fiber optic cable with composite polymeric/metallic armor | |
JPS59501561A (ja) | 外装光フアイバ・ケ−ブル | |
JPH04265916A (ja) | 光ファイバケーブル | |
KR20060030026A (ko) | 강도 부재를 구비한 광섬유 케이블 | |
CN1206557C (zh) | 有铠装套管的光缆 | |
EP3454102B1 (en) | Fiberoptic loose tube manufacturing and post extrusion shrinkage mitigation | |
EP1191375A2 (en) | Improved optical-fiber cable contaning thermally bonded fiber optic buffer tubes and fabrication process | |
JPS59501560A (ja) | 外装ケ−ブルで囲まれた光フアイバを組み込んだ密閉管 | |
CN106847389A (zh) | 一种光电综合缆 | |
CN111399145A (zh) | 一种加强型光缆 | |
EP4239386A1 (en) | Optical fiber cable with elongated strength members and manufacturing method thereof | |
CN111624718A (zh) | 稳相光缆 | |
EP4024106B1 (en) | Multisensing optical fiber cable |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
C06 | Publication | ||
PB01 | Publication | ||
C10 | Entry into substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20050615 Termination date: 20150925 |
|
EXPY | Termination of patent right or utility model |