JPS60184219A - Water shielding optical cable - Google Patents
Water shielding optical cableInfo
- Publication number
- JPS60184219A JPS60184219A JP59040992A JP4099284A JPS60184219A JP S60184219 A JPS60184219 A JP S60184219A JP 59040992 A JP59040992 A JP 59040992A JP 4099284 A JP4099284 A JP 4099284A JP S60184219 A JPS60184219 A JP S60184219A
- Authority
- JP
- Japan
- Prior art keywords
- water
- optical fiber
- migration preventing
- cable
- layer
- 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.)
- Pending
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 65
- 230000003287 optical effect Effects 0.000 title description 3
- 239000000463 material Substances 0.000 claims abstract description 39
- 239000013307 optical fiber Substances 0.000 claims abstract description 39
- 229910052791 calcium Inorganic materials 0.000 claims abstract description 6
- 239000011575 calcium Substances 0.000 claims abstract description 6
- 229910052708 sodium Inorganic materials 0.000 claims abstract description 6
- 239000011734 sodium Substances 0.000 claims abstract description 6
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 claims abstract description 5
- 229910052700 potassium Inorganic materials 0.000 claims abstract description 5
- 239000011591 potassium Substances 0.000 claims abstract description 5
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 claims abstract description 4
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 claims abstract description 4
- 230000002265 prevention Effects 0.000 claims description 30
- 238000002156 mixing Methods 0.000 claims description 9
- 229910052751 metal Inorganic materials 0.000 claims description 7
- 239000002184 metal Substances 0.000 claims description 7
- 239000004575 stone Substances 0.000 claims description 4
- 239000004519 grease Substances 0.000 abstract description 18
- 239000000344 soap Substances 0.000 abstract description 13
- 238000010438 heat treatment Methods 0.000 abstract description 5
- 238000013508 migration Methods 0.000 abstract description 5
- 230000005012 migration Effects 0.000 abstract description 5
- 230000008602 contraction Effects 0.000 abstract description 3
- 238000001125 extrusion Methods 0.000 abstract description 3
- 230000001681 protective effect Effects 0.000 abstract description 2
- 238000012856 packing Methods 0.000 abstract 2
- 230000035515 penetration Effects 0.000 abstract 1
- 239000003921 oil Substances 0.000 description 17
- 235000019198 oils Nutrition 0.000 description 17
- 235000014113 dietary fatty acids Nutrition 0.000 description 8
- 239000000194 fatty acid Substances 0.000 description 8
- 229930195729 fatty acid Natural products 0.000 description 8
- 150000004665 fatty acids Chemical class 0.000 description 8
- 239000004215 Carbon black (E152) Substances 0.000 description 7
- 238000011049 filling Methods 0.000 description 7
- 229930195733 hydrocarbon Natural products 0.000 description 7
- 150000002430 hydrocarbons Chemical class 0.000 description 7
- -1 polyethylene Polymers 0.000 description 7
- 239000000835 fiber Substances 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 239000004698 Polyethylene Substances 0.000 description 5
- 235000015278 beef Nutrition 0.000 description 5
- 229920000573 polyethylene Polymers 0.000 description 5
- 238000004804 winding Methods 0.000 description 5
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 description 4
- 239000007788 liquid Substances 0.000 description 4
- 238000012360 testing method Methods 0.000 description 4
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 3
- 240000002791 Brassica napus Species 0.000 description 3
- 235000004977 Brassica sinapistrum Nutrition 0.000 description 3
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- 229910052782 aluminium Inorganic materials 0.000 description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 3
- 239000011521 glass Substances 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 150000003839 salts Chemical class 0.000 description 3
- 239000003760 tallow Substances 0.000 description 3
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 2
- 235000004443 Ricinus communis Nutrition 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 239000000440 bentonite Substances 0.000 description 2
- 229910000278 bentonite Inorganic materials 0.000 description 2
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- WWVKQTNONPWVEL-UHFFFAOYSA-N caffeic acid phenethyl ester Natural products C1=C(O)C(O)=CC=C1C=CC(=O)OCC1=CC=CC=C1 WWVKQTNONPWVEL-UHFFFAOYSA-N 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 229920001971 elastomer Polymers 0.000 description 2
- 229920000620 organic polymer Polymers 0.000 description 2
- 239000012188 paraffin wax Substances 0.000 description 2
- SWUARLUWKZWEBQ-UHFFFAOYSA-N phenylethyl ester of caffeic acid Natural products C1=C(O)C(O)=CC=C1C=CC(=O)OCCC1=CC=CC=C1 SWUARLUWKZWEBQ-UHFFFAOYSA-N 0.000 description 2
- 229920001083 polybutene Polymers 0.000 description 2
- 239000005060 rubber Substances 0.000 description 2
- 239000000741 silica gel Substances 0.000 description 2
- 229910002027 silica gel Inorganic materials 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 239000002562 thickening agent Substances 0.000 description 2
- RSWGJHLUYNHPMX-UHFFFAOYSA-N Abietic-Saeure Natural products C12CCC(C(C)C)=CC2=CCC2C1(C)CCCC2(C)C(O)=O RSWGJHLUYNHPMX-UHFFFAOYSA-N 0.000 description 1
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- 229920000459 Nitrile rubber Polymers 0.000 description 1
- 239000005062 Polybutadiene Substances 0.000 description 1
- 239000002202 Polyethylene glycol Substances 0.000 description 1
- 229920002396 Polyurea Polymers 0.000 description 1
- KHPCPRHQVVSZAH-HUOMCSJISA-N Rosin Natural products O(C/C=C/c1ccccc1)[C@H]1[C@H](O)[C@@H](O)[C@@H](O)[C@@H](CO)O1 KHPCPRHQVVSZAH-HUOMCSJISA-N 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 150000001336 alkenes Chemical class 0.000 description 1
- AZDRQVAHHNSJOQ-UHFFFAOYSA-N alumane Chemical class [AlH3] AZDRQVAHHNSJOQ-UHFFFAOYSA-N 0.000 description 1
- 229940083916 aluminum distearate Drugs 0.000 description 1
- RDIVANOKKPKCTO-UHFFFAOYSA-K aluminum;octadecanoate;hydroxide Chemical compound [OH-].[Al+3].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O RDIVANOKKPKCTO-UHFFFAOYSA-K 0.000 description 1
- 229910052788 barium Inorganic materials 0.000 description 1
- DSAJWYNOEDNPEQ-UHFFFAOYSA-N barium atom Chemical compound [Ba] DSAJWYNOEDNPEQ-UHFFFAOYSA-N 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- DQXBYHZEEUGOBF-UHFFFAOYSA-N but-3-enoic acid;ethene Chemical compound C=C.OC(=O)CC=C DQXBYHZEEUGOBF-UHFFFAOYSA-N 0.000 description 1
- 150000001661 cadmium Chemical class 0.000 description 1
- 159000000007 calcium salts Chemical class 0.000 description 1
- 239000004359 castor oil Substances 0.000 description 1
- 235000019438 castor oil Nutrition 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000005253 cladding Methods 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 239000005038 ethylene vinyl acetate Substances 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- ZEMPKEQAKRGZGQ-XOQCFJPHSA-N glycerol triricinoleate Natural products CCCCCC[C@@H](O)CC=CCCCCCCCC(=O)OC[C@@H](COC(=O)CCCCCCCC=CC[C@@H](O)CCCCCC)OC(=O)CCCCCCCC=CC[C@H](O)CCCCCC ZEMPKEQAKRGZGQ-XOQCFJPHSA-N 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 150000008282 halocarbons Chemical class 0.000 description 1
- 229910001385 heavy metal Inorganic materials 0.000 description 1
- RBTKNAXYKSUFRK-UHFFFAOYSA-N heliogen blue Chemical compound [Cu].[N-]1C2=C(C=CC=C3)C3=C1N=C([N-]1)C3=CC=CC=C3C1=NC([N-]1)=C(C=CC=C3)C3=C1N=C([N-]1)C3=CC=CC=C3C1=N2 RBTKNAXYKSUFRK-UHFFFAOYSA-N 0.000 description 1
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 230000002401 inhibitory effect Effects 0.000 description 1
- 229910052744 lithium Inorganic materials 0.000 description 1
- 229910003002 lithium salt Inorganic materials 0.000 description 1
- 159000000002 lithium salts Chemical class 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 239000010721 machine oil Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- JRZJOMJEPLMPRA-UHFFFAOYSA-N olefin Natural products CCCCCCCC=C JRZJOMJEPLMPRA-UHFFFAOYSA-N 0.000 description 1
- 239000004006 olive oil Substances 0.000 description 1
- 235000008390 olive oil Nutrition 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920001084 poly(chloroprene) Polymers 0.000 description 1
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 description 1
- 229920013639 polyalphaolefin Polymers 0.000 description 1
- 229920002857 polybutadiene Polymers 0.000 description 1
- 229920001223 polyethylene glycol Polymers 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- 229920000915 polyvinyl chloride Polymers 0.000 description 1
- 239000004800 polyvinyl chloride Substances 0.000 description 1
- 229940072033 potash Drugs 0.000 description 1
- XAEFZNCEHLXOMS-UHFFFAOYSA-M potassium benzoate Chemical class [K+].[O-]C(=O)C1=CC=CC=C1 XAEFZNCEHLXOMS-UHFFFAOYSA-M 0.000 description 1
- BWHMMNNQKKPAPP-UHFFFAOYSA-L potassium carbonate Substances [K+].[K+].[O-]C([O-])=O BWHMMNNQKKPAPP-UHFFFAOYSA-L 0.000 description 1
- 235000015320 potassium carbonate Nutrition 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000003449 preventive effect Effects 0.000 description 1
- VPJDULFXCAQHRC-UHFFFAOYSA-N prop-2-enylurea Chemical compound NC(=O)NCC=C VPJDULFXCAQHRC-UHFFFAOYSA-N 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 230000000452 restraining effect Effects 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 238000007127 saponification reaction Methods 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 229920002545 silicone oil Polymers 0.000 description 1
- 159000000000 sodium salts Chemical class 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 159000000008 strontium salts Chemical class 0.000 description 1
- KHPCPRHQVVSZAH-UHFFFAOYSA-N trans-cinnamyl beta-D-glucopyranoside Natural products OC1C(O)C(O)C(CO)OC1OCC=CC1=CC=CC=C1 KHPCPRHQVVSZAH-UHFFFAOYSA-N 0.000 description 1
- 239000011800 void material Substances 0.000 description 1
- 239000010698 whale oil Substances 0.000 description 1
- 150000003751 zinc Chemical class 0.000 description 1
Classifications
-
- 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
- H01B7/28—Protection against damage caused by moisture, corrosion, chemical attack or weather
- H01B7/282—Preventing penetration of fluid, e.g. water or humidity, into conductor or cable
- H01B7/285—Preventing penetration of fluid, e.g. water or humidity, into conductor or cable by completely or partially filling interstices in the cable
- H01B7/288—Preventing penetration of fluid, e.g. water or humidity, into conductor or cable by completely or partially filling interstices in the cable using hygroscopic material or material swelling in the presence of liquid
-
- 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
- G02B6/4407—Optical cables with internal fluted support member
-
- 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
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Insulated Conductors (AREA)
- Optical Fibers, Optical Fiber Cores, And Optical Fiber Bundles (AREA)
- Surface Treatment Of Glass Fibres Or Filaments (AREA)
Abstract
Description
【発明の詳細な説明】
１ 技術分野
本発明は、特殊な走水防止材を介して複数本の光フアイ
バ全遮水層で包囲し°Ｃなる該防止材の走水防止性が改
善さ扛た遮水形光ファイバケーブルに関するものである
。Detailed Description of the Invention: 1. Technical field The present invention is a method for improving the water running prevention properties of a special water running prevention material that is surrounded by a total water blocking layer of optical fibers at °C. This invention relates to water-shielded optical fiber cables.
１１ 背景技術
多数本の光ファイバとと扛を包囲する遮水層との間に形
成される空間に走水防止材を充填しＣなる遮水形光ファ
イバケーブルが知られ“Ｃいる。走水防止材を介在せし
める目的は、主に遮水層に孔等の破損部が形成さｎた場
合にその破損部より浸入した水などが内部の□光ファイ
バ部に浸透し”Ｃ悪影響を及はすことを防止することに
ある。11 Background Art A water-shielding optical fiber cable is known in which the space formed between a large number of optical fibers and a water-shielding layer surrounding the fibers is filled with a water-running prevention material. The purpose of interposing the preventive material is mainly to prevent water that has entered through the damaged part from penetrating into the internal optical fiber section when a damaged part such as a hole is formed in the water-blocking layer, causing an adverse effect. The purpose is to prevent this from happening.
従来、その走水防止材とし゛Ｃ常温では固体状にあるも
のが知らｎ′でいた。すなわち、充填時に加熱溶融させ
゛にｎを光ファイバと遮水層との間の空隙に注入するタ
イプのものが知らｔＬ ’Ｃいた。Conventionally, it was known that the anti-water running material was solid at room temperature. That is, there is a known type in which n is injected into the gap between the optical fiber and the water-shielding layer by heating and melting it during filling.
しかしながら、前記タイプのものは充填後冷却さｎて常
温では固化するものであるため、その冷却過程における
体積収縮に基づい“Ｃ亀裂が発生しその走水防止性能が
低下する欠点を有するとともに、該体積収縮によっ“Ｃ
光ファイバにマイクロベンドが生じる重大な欠点があっ
た。そのほか、固化後に該ケーブルより除去することが
困難であるために高度の精密さが要求さｎる光フアイバ
ケーブルの接続等の端末加工におい゛Ｃ種々の不都合が
生じたり、屈曲自在性に劣り作業時等における取扱い性
に劣るなどの欠点もあった。However, since the above-mentioned type is cooled after filling and solidifies at room temperature, it has the disadvantage that "C cracks occur due to volumetric contraction during the cooling process, resulting in a decrease in water running prevention performance. “C” due to volumetric contraction
There was a serious drawback that microbends occurred in the optical fiber. In addition, various inconveniences may occur in terminal processing such as connecting optical fiber cables, which require a high degree of precision because it is difficult to remove from the cable after solidification, and the work may be difficult due to poor bendability. It also had drawbacks such as poor handling over time.
Ｉｌｌ 発明の開示
本発明は、特殊な走水防止材を用いることにより上記の
欠点を克服したものであり、殊に保水性すなわち水を捕
穫したり吸着保持したりしＣ水の移行を防止ないしは抑
制する性質を有するものを用い゛Ｃ走水防止性を数倍し
たものである。DISCLOSURE OF THE INVENTION The present invention overcomes the above-mentioned drawbacks by using a special water running prevention material, which has particularly water-retentive properties, that is, it captures water, adsorbs and retains water, and prevents the migration of C water. The anti-hydrotactic properties are several times more effective by using materials that have the property of inhibiting or suppressing water running.
すなわち、本発明は、保水性を有し、かつ、２５℃Ｔ
８５〜４７５の範ｕｌｌにある混和稠度Ｃｌｌ５ Ｋ
２２２０５．８）を有する走水防止材を介し′Ｃ複数本
の光ファイバを遮水層で包囲してなる遮水形光ファイバ
ケーブルを提供するものである。That is, the present invention has water retention properties and a temperature of 25°C
Mixing consistency Cll5 K in the range 85-475
The present invention provides a water-shielded optical fiber cable in which a plurality of optical fibers are surrounded by a water-shielding layer through a water running prevention material having a water running prevention material having a water running prevention material of 22205.8).
本発明のケーブルは、例えば添付図面のような構造ヲし
たものである。こｎは、例えばケプラー、ＦＲＰのよう
な有機高分子系繊維や金属線などからなるテンションメ
ンバ１１ｆｔ中心としてその周りに６本の光ファイバ１
２を集合させ、と扛に抑え巻きテープ１３を適度のテー
プ間隔を設けて粗巻きすることにより形成した６芯光フ
アイバユニツト１の８ユニツトを、例えばゴム製、プラ
スチック製あるいはこｎらの繊維補強物製のローノド、
金属線、有機高分子系繊維などからなるテンションメン
バ２の周囲に集合させ、得らｎた集合体の内部空間に走
水防止材５を圧入充填するとともに、集合体の外周にも
若干量の走水防止材層を成形創設したのちと扛を例えば
アルミニウムや鉛のような金属のラミネートテープなど
を縦添えすることにより形成した遮水層８で包囲し、そ
の上に該ラミネートテープなどの接着剤層と接５＆ し
た状態にポリエチレンやポリ塩化ビニルなどのシース材
からなる保護シース層４を押出成形方式で形成すること
により！ｌＩｌ！造したものである。なお、走水防止材
５は、必須ではないが光フアイバユニット内の光フアイ
バ間にも密な状態で充填さｎていることが望ましい。前
記の光フアイバユニットにおける抑え巻きテープ１８の
粗巻きは、その目的を達成するためのものである。すな
わち、該テープ１８のテープ間より走水防止材が圧入す
るようにしたものである。The cable of the present invention has a structure as shown in the attached drawings, for example. For example, an 11-ft tension member made of organic polymer fibers such as Kepler or FRP, or metal wires, and six optical fibers are placed around it.
The 8 units of the 6-core optical fiber unit 1 are formed by gathering the 6-core optical fiber units 1 and roughly winding the 6-core optical fiber unit 1 with a tightly pressed tape 13, for example, made of rubber, plastic, or any of these fibers. Ronod made of reinforcement,
It is assembled around the tension member 2 made of metal wire, organic polymer fiber, etc., and the water running prevention material 5 is press-fitted into the internal space of the obtained assembly, and a small amount is also applied to the outer periphery of the assembly. After the water running prevention material layer has been formed, the cover is surrounded with a water-blocking layer 8 formed by vertically applying a laminated tape made of metal such as aluminum or lead, and the laminated tape is adhered on top of the water-blocking layer 8. By forming a protective sheath layer 4 made of a sheath material such as polyethylene or polyvinyl chloride in contact with the agent layer using an extrusion molding method! lIl! It was created. Although it is not essential, it is desirable that the anti-water running material 5 is densely filled between the optical fibers in the optical fiber unit. The coarse winding of the tape 18 in the optical fiber unit described above is intended to achieve this purpose. That is, the water running prevention material is press-fitted between the tapes 18.
本発明におい′Ｃは、走水防止４：ｊ５として、保水ｖ
トラ有し、カー）、ＪＩＳ Ｋ ２２２０５．８ＫＪ、
づイテ測定した２５℃における混和稠度が８５〜４７５
、好ましくは１５０〜４５０、特に２００〜４００の範
囲にあるものが用いられる。また、ＪＩＳ Ｋ ２２２
０５．１５に基づい′Ｃ測定した４０℃、せん断率１０
ｇ−１における見かけ粘度が８Ｘ１０’ポアズ以下、特
に２．７Ｘ１０４ポアズ以下のものが光フアイバ間ない
しそのユニーｌト間における占積性（空隙充填性）の点
で望ましく用いうる。６ｔＪ記の混和稠度が８５未滴の
ものは充填時に高温度に加熱し′Ｃ流動性を増大させる
必要のある従来のタイプのものと実質的に同様のものと
なるし、他方、４７５を超えると流動性がよすぎてケー
ブルを垂直にないし傾斜させて布設した場合にケーブル
内で流下したり、ケーブルの下位部分の内部にンース破
損の原因となりうる水頭圧を生せしめたり、ケーブルの
上位部分に走水防止上問題となる空隙を生せしめたりし
゛〔本発明（ＱＨ的が達成さ扛ない。In the present invention, 'C' is water retention v as water running prevention 4:j5.
(car), JIS K 22205.8KJ,
Mixing consistency at 25℃ measured by the tester is 85-475
, preferably in the range of 150 to 450, particularly 200 to 400. Also, JIS K 222
05.15, measured at 40°C, shear rate 10
A material having an apparent viscosity at g-1 of 8 x 10' poise or less, particularly 2.7 x 104 poise or less, can be preferably used from the viewpoint of space filling property (void filling property) between optical fibers or units thereof. 6tJ with a mixing consistency of 85 droplets is substantially similar to the conventional type, which requires heating to a high temperature during filling to increase fluidity, while on the other hand, it is more than 475. If the cable is laid vertically or slanted, it may flow down inside the cable, create water head pressure inside the lower part of the cable that can cause damage to the base, or cause the upper part of the cable to flow down. Otherwise, voids may be formed which poses a problem in preventing water running.
本発明における走水防止材は、保水性を有するものであ
る。こ扛は、走水防止材そのものの走水防止性をよ＜Ｉ
、−ＣＩＡ造体全体全体′Ｃのケーブルの走水防止性を
向上せしめることを目的とする。The water running prevention material in the present invention has water retention properties. This method is based on the anti-water running properties of the anti-water running material itself.
, - The purpose is to improve the water running prevention properties of the cable of the entire CIA structure 'C.
本発明においＣ用いうる走水防止材としＣは、例、ｔば
）ランス油、スピンドル油、ケーブル浦、絶縁油、マシ
ン油のような石油系油、ロジン油、ヒマシ油、オリーブ
油、鯨油のような天然油、ポリブテン、塩素化パラフィ
ン、ポリエチレングリコールのような合成油などの試浦
と、牛脂硬化脂肪酸、ナタネ硬化脂肪酸、ヒマシ硬化脂
肪酸のような脂肪酸のナトリウム塩、リチウム塩、カル
シウム塩、バリウム塩、アルミニウム塩、カリウム塩、
ストロンチウム塩、亜鉛塩、鉛塩、カドミウム塩のよう
な金属塩とし′Ｃの金属石ケン、ベントナイト、シリカ
ゲル、銅フタロシアニン、アリル尿素のような非石ケン
系などの増稠剤とを適宜組合せて調製されたグリース、
あるいはそのグリースとポリブテンのようなオレフィン
重合油、塩素化パラフィンのようなハロゲン化炭化水素
油、液状クロロプレンゴム、液状ブタジェンゴム、液状
ニトリルゴムのような液状ゴム、炭化水素油、ボリアル
ギレングリコーＩし油、シリコーン油などの妬分子化合
物との混合物などをあげることができる。より具体的に
は、例えば牛脂−ナトリウム石ケングリース、ナタネー
リチウム石ケングリーヌ、ヒマシ−カルシウム石ケング
リース、ステアリン酸−アルシミニウム石ケングリース
、牛脂−カリウム石ケンクリース、シリカゲルグリーヌ
、ポリウレアグリース、ベントナイトグリース、高分子
粉末増稠剤グリースなどをあげることができ、カリウム
系、ナトリウム系、カルシウム系の金属石ケングリース
が保水性の点で好ましく用いら扛る。In the present invention, C can be used as a water running prevention material such as lance oil, spindle oil, cable well, insulating oil, machine oil, petroleum oil, rosin oil, castor oil, olive oil, whale oil, etc. Natural oils such as polybutene, chlorinated paraffin, synthetic oils such as polyethylene glycol, and sodium salts, lithium salts, calcium salts, barium of fatty acids such as tallow hydrogenated fatty acids, rapeseed hydrogenated fatty acids, castor hydrogenated fatty acids. salt, aluminum salt, potassium salt,
Metal salts such as strontium salts, zinc salts, lead salts, and cadmium salts are appropriately combined with non-soap thickeners such as metal soaps, bentonite, silica gel, copper phthalocyanine, and allyl urea. prepared grease,
Or its grease and olefin polymerized oil such as polybutene, halogenated hydrocarbon oil such as chlorinated paraffin, liquid rubber such as liquid chloroprene rubber, liquid butadiene rubber, liquid nitrile rubber, hydrocarbon oil, polyalgylene glycol I. Examples include oils and mixtures with silicone compounds such as silicone oils. More specifically, for example, beef tallow-sodium soap grease, rapeseed lithium soap grease, castor-calcium soap grease, stearic acid-aluminum soap grease, beef tallow-potassium soap grease, silica gel green, polyurea grease, bentonite grease , polymer powder thickener grease, etc., and potassium-based, sodium-based, and calcium-based metal soap greases are preferably used from the viewpoint of water retention.
１ｖ 発明の利点
本発明によれば、特殊な混和稠度を有する走水防止材を
用いたので、常温でないし比較的低温の加熱温度で充填
することができ、充ｉｘ後の体積数組が無いか軽度であ
る。そのためケーブル（光ファイバ）のマイクロベンド
が少ないのと同時に走水防止４；を層に亀裂が発生せず
、その結果、本発明のケーブルはすぐ扛た光伝送特性、
遮水性を有している。とともに、ケープ７しの端末加工
に際しＣも常温におい゛Ｃ同化しＣいないためその除去
及び補充が容易であり、したがっ°Ｃ能小よくかつ精を
冒に端末加工作業を行うことができる。さらに、抑圧下
で易流動変形性を有するためケーブルの屈曲が容易であ
っ゛Ｃ取扱い性にすぐ肚、かつ、ケーブルを屈曲した場
合光ファイバ（ユニット）間に介在する走水防止材が潤
滑剤の作用をなし、個々の光ファイバ（ユニット）の円
滑な屈曲を助ける効果も有する。1v Advantages of the Invention According to the present invention, since a water running prevention material with a special mixing consistency is used, it can be filled at a heating temperature that is not room temperature or a relatively low temperature, and there is no volumetric set after filling. or mild. Therefore, there are fewer micro-bends in the cable (optical fiber), and at the same time, no cracks occur in the water running prevention layer.As a result, the cable of the present invention has excellent optical transmission characteristics,
It has water-blocking properties. In addition, when processing the ends of the cape 7, since C is not assimilated at room temperature, it is easy to remove and replenish, and therefore the end processing work can be carried out with efficiency and efficiency. In addition, the cable can be easily bent due to its easy flow deformability under pressure.In addition, when the cable is bent, the water running prevention material interposed between the optical fibers (units) acts as a lubricant. It also has the effect of helping the smooth bending of individual optical fibers (units).
その上、走水防止材は保水性を有するので、仮にシース
層等が矢切し”Ｃ外部より水が浸入したとしＣも浸入水
は走水防止材に保持さＴして内部の光フアイバ部への浸
透が防止ないし抑制さγし、その結果、より一層光伝送
特性の水による耐劣化性、遮水性にすぐｎる遮水形光フ
ァイバケープ／ｌ・とすることができる。Furthermore, the anti-water running material has water-retaining properties, so even if the sheath layer etc. were cut off and water entered from the outside, the intruding water would be retained by the anti-water running material and the optical fiber inside. As a result, it is possible to provide a water-shielding optical fiber cape/l. with improved optical transmission characteristics, resistance to deterioration caused by water, and water-shielding properties.
■ 参考例、実施例
参考例１
牛脂硬化脂肪酸９２．５重量部に炭化水素油（４０℃で
の動粘度１６２．６ ｃＳｔ ） ４００重量部を加え
°Ｕ７０℃に加熱したのち酢酸１０．６重社部を加えた
ものと、水酸・化力ルシワム２１．７：ＥＪｉ世部をｉ
ｉＩ記炭化炭化水素油１００重皿部散させたものとを混
合し、攪拌下にケン化させた。ケン化完了後１５０℃に
加温し′Ｃ水分を除去し、次いで前記炭化水素油１００
０重斌部金（Ｖ押下に加えて２８０℃に加温したのち放
冷し、牛脂−カルシウム系石ケングリーヌヲ得り。■ Reference Examples, Examples Reference Example 1 400 parts by weight of hydrocarbon oil (kinematic viscosity 162.6 cSt at 40°C) was added to 92.5 parts by weight of beef tallow hydrogenated fatty acid, heated to 70°C, and 10.6 parts by weight of acetic acid was added. Adding Shabu and Hydroxylic/Kaiki Luciwam 21.7: EJi Sebu to i
The hydrocarbon oil described in ii above was mixed with the hydrocarbon oil dispersed in 100 plates, and the mixture was saponified with stirring. After saponification was completed, the water was removed by heating to 150°C, and then the hydrocarbon oil 100°C
0 heavy metal (in addition to V pressing, heated to 280°C and then left to cool to obtain beef tallow-calcium based stone).
このグリースの混和稠度（２５℃、１１ＳＫ ２２２０
５３、以下同様）は４８８であった。また、見かけ粘度
（４０℃、せん断率１０８−Ｉ ＪＩＳ Ｋ ２２２０
５．１５、以下同様）は１２０ポアズであった。The mixing consistency of this grease (25℃, 11SK 2220
53, hereinafter the same) was 488. In addition, the apparent viscosity (40°C, shear rate 108-I JIS K 2220
5.15, hereinafter the same) was 120 poise.
さらに、保水性はその水柱減量が１８７μｔ１ 湘水鼠
ｏ ／ｌｔであった。この保水性の評ｆ＋ｌＩ＋は、ガ
ラス管に走水防止材を空隙が形成さねないように充填し
て直径８０ＩＩＩＩ１１、長さ５ｃｒｎの該防止柵円柱
体を造り、とＩＬに内径７．５閣、長さ１ｍのガラス管
（肉厚ＩＩＩＩｆｆｌ）を同心的に該円柱体の深さ４゜
のところにまで埋め′Ｃ固定し、該埋設ガラス管に水を
入れて長さ８０６ｎの水柱を形成させ、この状態で放置
し“Ｃ２４０＃間後における水柱′Ｆａ足と該円柱体の
底部からの漏水量を測定することにより行った。Furthermore, regarding water retention, the water column loss was 187 μt1/lt. This evaluation of water retention f+lI+ was obtained by filling a glass tube with a water running prevention material so as to prevent the formation of voids, and making a cylindrical body of the prevention fence with a diameter of 80III11 and a length of 5 crn, and an inner diameter of 7.5 cm in the IL. A 1 m long glass tube (wall thickness IIIffl) was concentrically buried to a depth of 4° in the cylindrical body and fixed, and water was poured into the buried glass tube to form a water column with a length of 806 n. The test was carried out by measuring the amount of water leaking from the bottom of the cylindrical body and the water column after the cylindrical body was allowed to stand for 240 hours.
参考例２
ナタネ硬化脂肪酸２２０Ｍ景部、ヒマシ硬化脂肪酸８５
重景部、ポリ−α−オレフィン油（４０ｃでの動粘度８
６．５ ｃｓｔ ） １０００ （全Ｍ）ｎＮｉ部、水
酸化ナトリウム８９重量部を用い、参考例１に準じ゛Ｃ
混和稠度２０７、見かけ粘度８２００ポアズ、（保水性
）水柱減量１８８μｔ％漏水量ｏμｔのナトリウム系石
ケングリースを得た。Reference example 2 Rapeseed hydrogenated fatty acid 220M Kabebe, castor hydrogenated fatty acid 85
Heavy background, poly-α-olefin oil (kinematic viscosity at 40c 8
6.5 cst) 1000 (total M) nNi parts and 89 parts by weight of sodium hydroxide were used in accordance with Reference Example 1.
A sodium-based soap grease was obtained having a mixing consistency of 207, an apparent viscosity of 8200 poise, and a (water retention) water column loss of 188 μt% and a water leakage amount oμt.
参考例８
牛脂硬化脂肪酸３００重量部、炭化水素油（４９℃での
動粘度１６２．８ ｃＳｔ ） ７００ （金片）重足
部、水酸化カリウム６１．６重皿部を用い、参考例１と
同様にして、混和稠度９２、見かけ粘度２５５００ポア
ズ、（保水性）水柱減量１４０μｔ、漏水量０μｔのカ
リ＋７ム系石ケングリースヲ得り。Reference Example 8 Using 300 parts by weight of beef tallow hydrogenated fatty acid, hydrocarbon oil (kinematic viscosity 162.8 cSt at 49°C) 700 (gold flakes) heavy foot part, and potassium hydroxide 61.6 weight part, the same procedure as Reference Example 1 was carried out. In the same manner, a potash + 7 ml stone grease was obtained which had a mixing consistency of 92, an apparent viscosity of 25,500 poise, a (water retention) water column loss of 140 μt, and a water leakage amount of 0 μt.
実施例１
コア径５０／１ｍ、クラツド径１２５１１ｍのＧＩ形形
光ファイバ縁線シリコン系−次被覆（直径４００ｐｎ）
及びナイロンジャケットを施した直径０．９咽の光７１
イパの６本を直径１．０園のピアノ線を芯線とし゛〔こ
ｎに各光ファイバが１５ｍピッチで１周する割合で巻き
付けて得たものに厚さ５０μｍ１幅２．５＋ｗの延伸ポ
リエチレンフィルムからなる抑工巻きテープを２．６ｃ
ｍのテープ間隔で巻き付けて形成した６芯光フアイバユ
ニツト（外径８゜０ｍ１）の８本を直径１．２閣のピア
ノ線を７本撚り合せ°Ｃポリエチレン被［した外径５．
０鰭のテンションメンバの周りに各該ユニットが４０１
：ｒｎピッチで１周する割合で巻き付けて連続的に得た
外径１１ｍ＋の集合体を直径５■の小孔を多数有するテ
ーバ状の円筒体（常温）ｔ−通過させた。この円筒体の
小孔からは参考例１０走水防止材が１．０ Ｋｇ／ｄの
圧力で押出さｎておシ、その結果、これを通過する集合
体の該ユニット間及び各光フアイバ間の空隙に走水防止
材が圧入充填さ扛る。Example 1 GI type optical fiber with core diameter of 50/1 m and cladding diameter of 12511 m Silicon-based secondary coating (diameter 400 pn)
and a nylon-jacketed light 71 with a diameter of 0.9 mm.
Six fibers of IPA were wrapped around a piano wire with a diameter of 1.0mm as the core wire, and each optical fiber was wound around the fiber at a pitch of 15m, and then a stretched polyethylene film with a thickness of 50μm and a width of 2.5+W was used. 2.6c of restraining tape
Eight 6-core optical fiber units (outer diameter 8.0 m) were formed by winding tapes at tape intervals of 1.2 m, and 7 pieces of piano wire with a diameter of 1.2 mm were twisted together to form a 6-core optical fiber unit (outer diameter 5.0 m) coated with °C polyethylene.
Each unit is 401 around the tension member of the 0 fin.
An aggregate having an outer diameter of 11 m+, which was obtained by winding the material continuously at a rate of 1 turn at a pitch of :rn, was passed through a tapered cylindrical body (at room temperature) having a large number of small holes with a diameter of 5 cm. The water running prevention material of Reference Example 10 is extruded from the small hole of this cylindrical body at a pressure of 1.0 kg/d, and as a result, the water running prevention material of Reference Example 10 is extruded between the units and each optical fiber of the assembly passing through this. Water running prevention material is press-fitted into the gap.
このようにし′〔得た走水防止材が外周を被う直径１６
ｍ＋のものに片面にエチレン−酢酸ビニル系接着剤が
５０μｍの厚さで貼合わさｎた厚さ２５０μ”５１ｍ５
７ｍ＋のアルミラミネートテープを縦添えし゛Ｃ遮水層
を形成し、次いでこｎを押出成形機に導入して厚さ８■
のポリエチレンシース層ヲ形成することにより外径２８
ｗｎの遮水形光ファイバケープｌしを１５ｍ／分の速さ
で連続的に得た。In this way,
M+ was laminated with ethylene-vinyl acetate adhesive on one side to a thickness of 50μm, thickness 250μ”51m5
A 7m+ aluminum laminate tape was attached vertically to form a water-blocking layer, and then introduced into an extrusion molding machine to a thickness of 8cm.
By forming a polyethylene sheath layer of
A water-shielding optical fiber cape of wn was continuously obtained at a speed of 15 m/min.
得られたケーブルは、光ファイバユニッ） ｔｉｌｌ
及び光フアイバ間の空隙の全部にカルシウム系石ケング
リースが充填さｎたものであった。また、ケープｐの性
能は表に示したようにすぐれたものであった。The resulting cable is an optical fiber unit) till
All of the gaps between the optical fibers were filled with calcium-based soap grease. Furthermore, the performance of CAPE P was excellent as shown in the table.
なお、ケーブルの遮水性に９いては、長さ２ｍのケーブ
ル試験片の長さ方向の＃１は中央部のシース層及び縦添
え遮水層を２５簡にわたりはぎとり、そこに１ｍの高さ
に水を満したポリエチレン管を設けて１４日後における
ケープ／Ｉ−／試験片内への水の浸入の有無を調べた。Regarding the water-shielding properties of cables, #1 in the longitudinal direction of a 2-m long cable test piece was stripped of the central sheath layer and vertical water-shielding layer over 25 strips, and was then placed at a height of 1 m. A polyethylene tube filled with water was provided, and the presence or absence of water infiltration into the CAPE/I-/test piece was examined 14 days later.
さらに、無の場合には、その浸水距離を調べた。Furthermore, if there was no water, we investigated the water inundation distance.
実施例２
走水防止材として、参考例２で得たナトリウム系石ケン
グリースを用いたほかは実施例１と同様にし゛〔ケープ
）Ｖを得た。Example 2 Cape V was obtained in the same manner as in Example 1, except that the sodium-based soap grease obtained in Reference Example 2 was used as a water running prevention material.
ケーブルの性能を表に示した。The performance of the cable is shown in the table.
実施例３
走水防止材とし゛Ｃ参考例８で得たカリウム系石ケング
リースを用いたす１かは実施例１と同様にし゛Ｃケーブ
ルを得た。Example 3 A C cable was obtained in the same manner as in Example 1 except that the potassium-based soap grease obtained in C Reference Example 8 was used as a water running prevention material.
ケーブルの性能を表に示した。The performance of the cable is shown in the table.
比較例１
走水防止材として米国ライ・ントコ社製す５Ｂを用い、
こｉｔ、は常温で固体であるので１０５℃に加熱溶融し
て充填し、常温子で放冷したはかは実施例１と同様にし
゛ＣケープＪＶを得た。Comparative Example 1 5B manufactured by Ly Ntoco Co., Ltd. in the United States was used as a water running prevention material.
Since this product is solid at room temperature, it was heated and melted at 105° C., filled, and left to cool in a room temperature oven.The same procedure as in Example 1 was carried out to obtain C Cape JV.
このケーブルの性能を表に示した。The performance of this cable is shown in the table.
比較例２
走水防止材とし゛Ｃ１混和稠度は２７５であるが、保水
性を有しない（試験開始２０分後の水柱ｖｔｉ量が６．
２ｄ％漏水量が５．７＃ＩＩ’）下記の組成のものを用
いたほかは実施例１と同様にし”Ｃケープｌｖヲ得た。Comparative Example 2 A water running prevention material with a C1 mixing consistency of 275, but no water retention (water column vti 20 minutes after the start of the test was 6.
A "C cape lv" was obtained in the same manner as in Example 1 except that the following composition was used.
ジステアリン酸アルミニウム１４０市ｋ 部に炭化水素
油（４０℃での動粘度１６２．６ ｃＳｔ ）８６０虫
鼠部を加えて分散混合し、１７０℃に加温したのち放冷
し、ミーリングしＣ得たアｌレミニウム石ケングリース
（見かけ粘度４８０ポアズ）。860 parts of hydrocarbon oil (kinematic viscosity at 40°C: 162.6 cSt) was added to 140 parts of aluminum distearate, dispersed and mixed, heated to 170°C, allowed to cool, and milled to obtain C. Aluminum stone grease (apparent viscosity 480 poise).
このケーブルの性能を表に示した。The performance of this cable is shown in the table.
図は、本発明の遮水形光ファイバケーブルの４１°１′
Ｉ造例を表わした横断面図である。
ｌ：６芯光フアイバユニツト、２，１１：デンションメ
ンパ、８：遮水層、４：保、ｆｌｆｉシース層、５：走
水防止材、１２：光ファイバ、１３：抑え巻きテープ
特許出願人 大日８本軍線株式会社
日本グリース株式会社
代理人藤 本 勉The figure shows the water-shielded optical fiber cable of the present invention at 41°1'.
It is a cross-sectional view showing an I-shaped example. l: 6-core optical fiber unit, 2, 11: tension member, 8: water-blocking layer, 4: protection, flfi sheath layer, 5: water running prevention material, 12: optical fiber, 13: pressure winding tape patent applicant Dainichi 8th Military Line Co., Ltd. Japan Grease Co., Ltd. Agent Tsutomu Fujimoto
Claims (1)
包囲しＣなる遮水形光ファイバケーブルにおい′Ｃ１ 走水防止材が保水性を有し、かつ、２５℃で８５〜４７
５の範囲にある混和稠度（ＪＩＳ Ｋ２２２０５．８
’Ｉ ’！ｉｌ−有するものであることを特徴とする前
記ケーブル。 ２、 走水防止材がカリウム系、ナトリウム系又はカル
シウム系の保水性金属石ケングリ〜ヌである特許請求の
範囲第１項記載のケーブル。[Claims] 1. A water-shielding optical fiber cable in which a plurality of optical fibers are surrounded by a water-shielding layer through a water-travel prevention material; , 85-47 at 25℃
Mixing consistency in the range of 5 (JIS K22205.8
'I'! il-. 2. The cable according to claim 1, wherein the water running prevention material is a potassium-based, sodium-based, or calcium-based water-retaining metal stone.
Priority Applications (8)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59040992A JPS60184219A (en) | 1984-03-03 | 1984-03-03 | Water shielding optical cable |
| EP85100895A EP0160778B2 (en) | 1984-03-03 | 1985-01-29 | Waterproof optical fiber cable |
| AT85100895T ATE46973T1 (en) | 1984-03-03 | 1985-01-29 | WATER RESISTANT OPTICAL CABLE. |
| DE8585100895T DE3573478D1 (en) | 1984-03-03 | 1985-01-29 | Waterproof optical fiber cable |
| CA000473252A CA1251669A (en) | 1984-03-03 | 1985-01-31 | Waterproof optical fiber cable |
| KR1019850000683A KR910004711B1 (en) | 1984-03-03 | 1985-02-04 | Waterproof optical fiber cable |
| AU38454/85A AU585847B2 (en) | 1984-03-03 | 1985-02-05 | Waterproof optical fiber cable |
| US06/698,461 US4703997A (en) | 1984-03-03 | 1985-02-05 | Waterproof optical fiber cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59040992A JPS60184219A (en) | 1984-03-03 | 1984-03-03 | Water shielding optical cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS60184219A true JPS60184219A (en) | 1985-09-19 |
Family
ID=12595925
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP59040992A Pending JPS60184219A (en) | 1984-03-03 | 1984-03-03 | Water shielding optical cable |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JPS60184219A (en) |
| KR (1) | KR910004711B1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009110724A (en) * | 2007-10-26 | 2009-05-21 | Panasonic Electric Works Co Ltd | Terminal board |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS54110208A (en) * | 1978-02-16 | 1979-08-29 | Toshi Sangiyou Kk | Manufacture of greasy lubricant |
| JPS5643610A (en) * | 1979-09-17 | 1981-04-22 | Nippon Telegr & Teleph Corp <Ntt> | Jelly filled optical fiber cable |
| JPS5687005A (en) * | 1979-11-22 | 1981-07-15 | Noane Georges Le | Submarine cable with photofiber |
| JPS58112203A (en) * | 1981-12-25 | 1983-07-04 | 株式会社フジクラ | Electric cable |
-
1984
- 1984-03-03 JP JP59040992A patent/JPS60184219A/en active Pending
-
1985
- 1985-02-04 KR KR1019850000683A patent/KR910004711B1/en not_active IP Right Cessation
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS54110208A (en) * | 1978-02-16 | 1979-08-29 | Toshi Sangiyou Kk | Manufacture of greasy lubricant |
| JPS5643610A (en) * | 1979-09-17 | 1981-04-22 | Nippon Telegr & Teleph Corp <Ntt> | Jelly filled optical fiber cable |
| JPS5687005A (en) * | 1979-11-22 | 1981-07-15 | Noane Georges Le | Submarine cable with photofiber |
| JPS58112203A (en) * | 1981-12-25 | 1983-07-04 | 株式会社フジクラ | Electric cable |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009110724A (en) * | 2007-10-26 | 2009-05-21 | Panasonic Electric Works Co Ltd | Terminal board |
Also Published As
| Publication number | Publication date |
|---|---|
| KR910004711B1 (en) | 1991-07-10 |
| KR850006731A (en) | 1985-10-16 |
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