FI74362B - KABEL MED KABELKAERNAN OMGIVANDE DRAGAVLASTNINGSELEMENT. - Google Patents

KABEL MED KABELKAERNAN OMGIVANDE DRAGAVLASTNINGSELEMENT. Download PDF

Info

Publication number
FI74362B
FI74362B FI843268A FI843268A FI74362B FI 74362 B FI74362 B FI 74362B FI 843268 A FI843268 A FI 843268A FI 843268 A FI843268 A FI 843268A FI 74362 B FI74362 B FI 74362B
Authority
FI
Finland
Prior art keywords
cable
cable according
strain relief
fibers
relief elements
Prior art date
Application number
FI843268A
Other languages
Finnish (fi)
Swedish (sv)
Other versions
FI74362C (en
FI843268A (en
FI843268A0 (en
Inventor
Peter Zamzow
Klaus Nothofer
Helmut Haag
Daljit-Singh Parmar
Original Assignee
Aeg Telefunken Kabelwerke
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=6207024&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=FI74362(B) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Aeg Telefunken Kabelwerke filed Critical Aeg Telefunken Kabelwerke
Publication of FI843268A0 publication Critical patent/FI843268A0/en
Publication of FI843268A publication Critical patent/FI843268A/en
Priority to FI872512A priority Critical patent/FI82157C/en
Application granted granted Critical
Publication of FI74362B publication Critical patent/FI74362B/en
Publication of FI74362C publication Critical patent/FI74362C/en

Links

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
    • G02B6/4429—Means specially adapted for strengthening or protecting the cables
    • G02B6/4434—Central member to take up tensile loads
    • 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
    • H01B7/183—Protection against damage caused by wear, mechanical force or pressure; Sheaths; Armouring comprising synthetic filaments forming part of an outer sheath
    • 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

Abstract

1. Cable with strain relief element (2) which surround the cable core (1) and consist of a plurality of thin fibres running parallel to each other, characterized in that the strain relief elements (2) each consist of a flat, ribbon-like bundle (3) with a plurality of thin fibres which can slide over each other, which are surrounded by a closed envelope (4) made of fusion adhesive and which are stranded around the cable core with a long length of lay (Fig. 1).

Description

1 743621 74362

Kaapeli kaapelisydäntä ympäröivine vedonpoistoelementteineenCable with strain relief elements surrounding the cable core

Keksintö kohdistuu patenttivaatimuksen 1 päätunnus-merkin mukaiseen kaapeliin.The invention relates to a cable according to the main feature of claim 1.

5 On tunnettua upottaa nuoramaisia yksittäiselement- tejä vedonpoisto-elementeiksi kaapelivaippaan sitä suutti-men kautta puristettaessa. Tällöin saadaan hyvä voimaan perustuva liitos vaipalle ja vedonpoistoelementeille, niin että vetovoimat tulevat pidetyksi poissa kaapelisydämestä, 10 ilman että syntyy suuria alkuvenymiä. Erikoisesti optisille kaapeleille on tärkeää, että vetokuormituksessa vetoelemen-tit täysin toimivat, ennen kuin syntyy alkuvenymiä, jotka ovat enemmän kuin 0,5 %. Toisaalta ei tällaisen kaapelin taipuvuus ole tyydyttävä. Sisäänpantavat vedonpoistoelemen-15 tit häiritsevät kaapelivaippaa suuttimen läpi puristettaessa.It is known to embed string-like individual elements as strain relief elements in a cable sheath when compressed through a nozzle. This provides a good force-based connection to the sheath and the strain relief elements, so that the traction forces are kept away from the cable core, 10 without large initial stretches. Especially for optical cables, it is important that the tensile elements are fully functional under tensile loading before the initial elongation of more than 0.5% is created. On the other hand, the flexibility of such a cable is not satisfactory. The insertable strain relief elements interfere with the cable sheath when squeezed through the nozzle.

Kun vauriokohtaan tunkeutuu vettä, niin tämä voi siirtyä eteenpäin pituussuunnassa vedonpoistoelementtien läpi. Koska ei voida jättää huomioonottamatta, että vaippaa suuttimen läpi puristettaessa syntyy erillisiä täyttämät-20 tömiä onttoja tiloja, jotka muodostavat sillan veden läpi-menolle vedonpoistoelementeistä kaapelisydämeen, eivät tällaiset kaapelit ole riittävän vesitiiviitä pituussuunnassa. Lukuisia kuituja yhteenliimaamalla syntyvissä vedon-poistoelementeissä on tosin niiden vedenjohtaminen estetty, 25 mutta kaapelin taivutettavuus vaikeutuu tällä lisää.When water penetrates the damage point, this can move longitudinally through the strain relief elements. Since it cannot be ignored that squeezing the sheath through the nozzle creates separate unfilled hollow spaces which form a bridge for the passage of water from the strain relief elements to the cable core, such cables are not sufficiently watertight in the longitudinal direction. Although a large number of fibers in the strain relief elements are prevented from conducting water, their water conduction is prevented, 25 this makes the bendability of the cable even more difficult.

Keksinnön pohjana on tehtävä muotoilla alussa mainitunlainen kaapeli siten, että vetovoimat hyvän taivutet-tavuuden säilyessä eivät voi vaikuttaa haitallisesti kaapelisydämeen, ja että erikoisesti pituussuuntainen vesi-30 tiiveys tulee taatuksi.The invention must be based on shaping a cable of the type mentioned at the beginning in such a way that the tensile forces, while maintaining good bendability, cannot adversely affect the cable core, and in particular that the longitudinal watertightness is guaranteed.

Ratkaisu onnistuu patenttivaatimuksessa 1 esitetyllä tunnusmerkeillä. Edullisia keksinnön edelleen muotoiluja on esitetty epäitsenäisissä vaatimuksissa.The solution is achieved by the features set forth in claim 1. Further preferred embodiments of the invention are set out in the dependent claims.

Koska lukuisat ohuista, liimaamattomista kuiduista 35 valmistetut vedonpoistoelementit on täysin ympäröity sula- 2 74362 sitkoainetta olevalla vaipalla, ei vauriokohdassa sisään-tunkeutuva vesi, joka vedonpoistoelementtien läpi leviää pituussuunnassa, voi joutua kaapelinsydämeen. Veden pituussuuntainen leviäminen vedonpoistoelementtien sisällä voidaan 5 jatkuvasti tai epäjatkuvasti vaikeuttaa tai estää tiivistys-pulverilla tai kyllästämällä kuituelementit geelimälsellä aineella. On myös mahdollista liimata vedonpoistoelementtien kuidut pituussuunnassa pistemäisesti suurehkoin välimatkoin peräkkäisissä kohdissa, esimerkiksi Cyanoakrylaatti-10 liimalla. Tällä estyy veden ryömiminen pituussuunnassa, ilman että kaapelin taivutettavuus huononee, kuten kuitujen läpimenevällä liimaamisella.Since the numerous strain relief elements made of thin, non-glued fibers 35 are completely surrounded by a sheath of molten 2 74362 binder, no water penetrating at the point of damage, which spreads longitudinally through the strain relief elements, can enter the cable core. Longitudinal spreading of water within the strain relief elements can be continuously or discontinuously impeded or prevented by a sealing powder or by impregnating the fibrous elements with a gel-like substance. It is also possible to glue the fibers of the strain relief elements pointwise in the longitudinal direction at relatively large intervals at successive points, for example with cyanoacrylate-10 glue. This prevents water from creeping longitudinally without compromising the bendability of the cable, as with continuous gluing of the fibers.

Koska vedonpoistoelementit on litteässä muodossa jaettu sydämen ympärille, saadaan pienet kaapelihalkaisijät. 15 Tämän ja kuitujen liukuvuuden vuoksi toisiaan vastaan ei kaapelin taivutettavuus vaikeudu liikaa.Because the strain relief elements are distributed in a flat form around the core, small cable diameters are obtained. 15 Due to this and the sliding of the fibers against each other, the bendability of the cable does not become too difficult.

Sulasitkoaineen käyttäminen vedonpoistoelementtien ympäröimiseen kaikilta puolilta aikaansaa voimaan perustuvan liitoksen erikoisesti sen päälle sijoitettuun vaippakerrok-20 seen nähden, koska suulakkeen läpipuristusvaiheessa aikaansaadaan sulaminen. Siksi voidaan kaapelia asennettaessa käyttää perinteisiä vetokintaita, jotka tarttuvat kaapeli-vaippaan.The use of a melt binder to surround the strain relief elements on all sides provides a force-based connection, especially with respect to the jacket layer 20 placed thereon, since melting is achieved during the extrusion step of the die. Therefore, when installing the cable, conventional pull-up gloves that adhere to the cable sheath can be used.

Kun vedonpoistoelementit peittävät aukottomasti sy-25 dämen koko kehän, sulavat erilliset vedonpoistoelementit kapeilta sivuiltaan yhteen, niin että muodostuu tiivis sul-kukerros kaapelisydämen pituussuuntaista vettä vastaan tiivistävien täyttöaineiden, kuten petrolaatin ulostuloa vastaan. Tässä tapauksessa on polyamidi-pohjäisen sulasitko-30 aineen käyttö erikoisen edullista, koska polyamidi on vas tustuskykyistä petrolaatin vaikutusta vastaan. Tiivistävä vaikutus saadaan myös patenttivaatimuksen 4 mukaisella liuosvaihtoehdolla.When the strain relief elements seamlessly cover the entire circumference of the core, the separate strain relief elements fuse together at their narrow sides to form a tight barrier layer against the longitudinal water core of the cable core against sealing fillers such as petrolatum. In this case, the use of a polyamide-based melt binder is particularly advantageous because the polyamide is resistant to the action of petrolatum. The sealing effect is also obtained with the solution option according to claim 4.

Keksinnön eräs edullinen suoritusmuoto on esitetty 35 piirustuksessa.A preferred embodiment of the invention is shown in the drawing.

3 743623 74362

Kuvio esittää poikkileikkausta keksinnön mukaisesti muotoilulla vedonpoistoelementeillä varustetusta kaapeli-sydämestä.The figure shows a cross-section of a cable core provided with strain relief elements shaped according to the invention.

Kuviossa on kaapelisydän 1 useiden litteiden vedon-5 poistoelementtien 2 ympäröimä, jotka aukottomasti ovat vierekkäin kapeat sivut vastakkain. Jokainen vedonpoistoele-mentti 2 muodostuu nipusta 3 rinnakkain olevia kuituja ja näitä ympäröivästä sulasitkoainetta olevasta vaipasta 4. Vaippaa suuttimella päälle puristettaessa, esimerkiksi po-10 lyetyleeniä, tämä liimautuu säteen suunnassa ulompien sula-sitkoaineen kerrosten kanssa. Edelleen liimautuvat myös erilliset vedonpoistoelementit 2 kapeilla sivuillaan toisiinsa. Tämän vaikutuksen tehostamiseksi on sulasitkoaine-kerrosten paksuudet viereisillä vedonpoistoelementtien 2 15 kapeilla sivuilla vahvistettu.The figure is surrounded by a plurality of flat tension-5 removal elements 2 of the cable core 1, which are seamlessly side by side with narrow sides facing each other. Each strain relief element 2 consists of a sheath 4 of fibers bundled parallel to the bundle 3 and the surrounding melt binder. When the sheath is pressed on with a nozzle, for example polyethylene, this is glued radially with the outer layers of melt binder. Furthermore, the separate strain relief elements 2 also adhere to each other on their narrow sides. To enhance this effect, the thicknesses of the melt binder layers on the narrow sides of the adjacent strain relief elements 2 are reinforced.

Sulasitkoainekerrokset on suuttimen läpi puristettu jokaisen erillisen vedonpoistoelementin 2 päälle. Ensin voidaan nämä valmistaa puristamalla suuttimen läpi pyöreä-poikkipintaisena ja sen jälkeen vielä lämpimässä tilassa 20 puristaa litteäksi. Sen jälkeen ne kierretään pitkällä kier-resuhteella 40-60 kaapelisydämen ympäri. Vedonpoistoelementtien 2 kierrekerroksen päälle voidaan panna pidäkesilmukka. Tämä aikaansaa säteen suuntaisella puristusvoimalla jokaisessa vedonpoistoelementissä 2 olevien kuitujen kiristävän 25 kokoonpuristuksen, niin että veden pituussuuntainen edelleen johtuminen ainakin vaikeutuu huomattavasti vedonpoistoelementin kautta.The melt binder layers are pressed through the nozzle onto each individual strain relief element 2. These can first be made by pressing through a nozzle in a circular cross-section and then, while still warm, pressed flat. They are then wound at a long helix ratio around 40-60 cable cores. A retaining loop can be placed on top of the threaded layer 2 of the strain relief elements. This provides a tensioning compression of the fibers 25 in each strain relief element 2 with a radial compressive force, so that the longitudinal further conduction of water is at least considerably more difficult through the strain relief element.

Claims (12)

1. Kabel med kabelkärnan (1) omgivande dragavlast-ningselement (2) , vilka bestär av ett flertal, i förhällan- 5 de till varandra parallellt löpande tunna fibrer, känne-t e c k n a d därav, att dragavlastningselementen (2) bestcir av en platt, bandartad knippe (3) med ett flertal mot varandra glidande tunna fibrer, vilka omges av en slu-ten mantel (4) av smältbindemedel, och vilka är virade runt 10 kabelkärnan (1) med stor slaglängd.1. A cable with the cable core (1) surrounding the strain relief element (2), which consists of a plurality of thin fibers running parallel to each other, characterized in that the strain relief elements (2) are constituted by a flat, ribbon bundle (3) having a plurality of sliding thin fibers, which are surrounded by a closed sheath (4) of hot-melt adhesive, and which are wound around the cable core (1) of large stroke. 2. Kabel enligt patentkravet 1, känneteck-n a d därav, att dragavlastningselementen (2) täcker ka-belkärnans (1) omkrets utan luckor.2. A cable according to claim 1, characterized in that the strain relief elements (2) cover the circumference of the cable core (1) without gaps. 3. Kabel enligt patentkravet 2, känneteck-15 n a d därav, att mantlarna (4) av smältbindemedel är för- stärkta vid knippens (3) smala sidor.3. A cable according to claim 2, characterized in that the sheaths (4) of hot melt adhesives are reinforced at the narrow sides of the bundle (3). 4. Kabel enligt nägot av patentkraven 1-3, känne-t e c k n a d därav, att smältbindemedelsskikten (4) är bildade genom pressning genom ett munstycke.4. A cable according to any one of claims 1-3, characterized in that the hot melt adhesive layers (4) are formed by pressing through a nozzle. 5. Kabel enligt nägot av patentkraven 1-4, känne- t e c k n a d därav, att bindemedelsskikten (4) är av aro-matisk polyamid.Cable according to any of claims 1-4, characterized in that the binder layers (4) are of aromatic polyamide. 6. Kabel enligt nägot av patentkraven 1-5, känne-t e c k n a d därav, att bindemedelsskikten (4) är av poly- 25 etylen.6. A cable according to any one of claims 1-5, characterized in that the binder layers (4) are of polyethylene. 7. Kabel enligt nägot av patentkraven 1-6, känne-t e c k n a d därav, att fibrerna är av aromatisk polyamid särskilt känt under ett namn Kevlar.7. A cable according to any one of claims 1-6, characterized in that the fibers are of aromatic polyamide especially known by a name Kevlar. 8. Kabel enligt nägot av patentkraven 1-6, känne-30 tecknad därav, att fibrerna är av glas vars diameter är under 30 ^um.8. A cable according to any one of claims 1-6, characterized in that the fibers are of glass whose diameter is less than 30 µm. 9. Kabel enligt nägot av patentkraven 1-8, känne-tecknad därav, att mellan fibrerna har kontinuerligt eller okontinuerligt placerats tätningspulver.9. A cable according to any one of claims 1-8, characterized in that sealing powder is placed between the fibers continuously or continuously. 10. Kabel enligt nägot av patentkraven 1-8, känne- tecknad därav, att fibrerna är genomdränkta av ett gelaktigt ämne.10. A cable according to any one of claims 1-8, characterized in that the fibers are soaked in a gel-like substance.
FI843268A 1983-08-20 1984-08-17 Cable with cable core surrounding tension relief element. FI74362C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FI872512A FI82157C (en) 1983-08-20 1987-06-04 KABEL MED KABELKAERNAN OMGIVANDE DRAGAVLASTNINGSELEMENT.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3330096 1983-08-20
DE19833330096 DE3330096A1 (en) 1983-08-20 1983-08-20 CABLE WITH TENSILE RELIEF ELEMENTS SURROUNDING THE CABLE CORE

Publications (4)

Publication Number Publication Date
FI843268A0 FI843268A0 (en) 1984-08-17
FI843268A FI843268A (en) 1985-02-21
FI74362B true FI74362B (en) 1987-09-30
FI74362C FI74362C (en) 1988-01-11

Family

ID=6207024

Family Applications (1)

Application Number Title Priority Date Filing Date
FI843268A FI74362C (en) 1983-08-20 1984-08-17 Cable with cable core surrounding tension relief element.

Country Status (4)

Country Link
EP (1) EP0141931B1 (en)
AT (1) ATE44187T1 (en)
DE (2) DE3330096A1 (en)
FI (1) FI74362C (en)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU577863B2 (en) * 1984-06-15 1988-10-06 Australian Cables Pty Limited Aerial lead-in cable
DE3639895C1 (en) * 1986-11-21 1988-03-24 Freudenberg Carl Fa Swellable cable bandage and process for its manufacture
ATE71766T1 (en) * 1987-04-13 1992-02-15 Schweizerische Isolawerke COMMUNICATION OR CONTROL CABLE WITH SUPPORTING ELEMENT.
US4913517A (en) * 1988-07-11 1990-04-03 American Telephone And Telegraph Company, At&T Bell Laboratories Communication cable having water blocking strength members
CA1313237C (en) * 1989-05-05 1993-01-26 Robert R. Pawluk Armoured electric cable with integral tensile members
FR2649242A1 (en) * 1989-06-29 1991-01-04 Lens Cableries LOW-POLYPHASE, WATERTIGHT ELECTRICAL ENERGY CABLE AND METHOD FOR MANUFACTURING SUCH A CABLE
DE3930496A1 (en) * 1989-09-12 1991-03-21 Reinshagen Kabelwerk Gmbh ELECTRICAL CABLE WITH TENSILE ELEMENT
GB9411028D0 (en) * 1994-06-02 1994-07-20 Cookson Group Plc Water blocking composites and their use in cable manufacture
JP2002184241A (en) * 2000-06-22 2002-06-28 W Brandt Goldsworthy & Associates Inc Composite material reinforced electric transmission conductor
DE202008015693U1 (en) 2008-11-26 2009-02-19 Draka Comteq Berlin Gmbh & Co. Kg communication cable

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2345864A (en) * 1942-06-06 1944-04-04 Lane Wells Co Conductor core for wire ropes and method of manufacture
FR90970E (en) * 1966-01-20 1968-03-22 Chavanoz Moulinage Retorderie Inextensible conductor thread
DE2127409A1 (en) * 1971-06-03 1972-12-14 Kromberg & Schubert Electrical cable sheath of glass fibre and thermoplastic - strip wrapped then heated to bond to cable
US3973385A (en) * 1975-05-05 1976-08-10 Consolidated Products Corporation Electromechanical cable
JPS5537710A (en) * 1978-09-06 1980-03-15 Boeicho Gijutsu Kenkyu Honbuch Underwater cable search cable
DE3129962C2 (en) * 1981-07-29 1985-07-25 Heermann GmbH, 5800 Hagen Flexible electrical cable for the transmission of signals between a control center and a fast moving missile and its method of manufacture

Also Published As

Publication number Publication date
FI74362C (en) 1988-01-11
ATE44187T1 (en) 1989-07-15
EP0141931B1 (en) 1989-06-21
FI843268A (en) 1985-02-21
FI843268A0 (en) 1984-08-17
DE3330096C2 (en) 1987-06-19
EP0141931A3 (en) 1987-01-14
DE3330096A1 (en) 1985-03-21
EP0141931A2 (en) 1985-05-22
DE3478773D1 (en) 1989-07-27

Similar Documents

Publication Publication Date Title
CN1029883C (en) Bonded sheath cable with lubricant over seam
US9274302B2 (en) Fiber optic cables with extruded access features for access to a cable cavity
EP0564130A1 (en) Optical fiber cable with large number of ribbon units containing optical fibers and enclosed in tubes
JP4055000B2 (en) Optical fiber cable, optical fiber cable manufacturing method, and optical fiber cable manufacturing apparatus
US10345545B2 (en) Method of manufacturing an optical fiber cable
IE52815B1 (en) Optical fibre cable
GB2271859A (en) Optical fibre cable comprising stack of ribbon fibre elements
JP2801405B2 (en) Cables with fine conductors, especially optical fibers, methods and apparatus for manufacturing them
CA3061885C (en) Optical fiber cable and method of manufacturing optical fiber cable
FI74362B (en) KABEL MED KABELKAERNAN OMGIVANDE DRAGAVLASTNINGSELEMENT.
CA1116903A (en) Fiber optic ribbon and cable made therefrom
CA2042530C (en) Bonded sheath cable having enhanced resistance to jacket splitting
US4783138A (en) Cable and method of manufacture
GB2184563A (en) Optical fibre units
EP0088519A1 (en) Optical fibre cables
FI82157C (en) KABEL MED KABELKAERNAN OMGIVANDE DRAGAVLASTNINGSELEMENT.
EP0539915A1 (en) Composite power/optical cable
JP6413593B2 (en) Fiber optic cable
KR100407152B1 (en) Structure For Preventing Water Of Optical Fiber Cable
JPH09159839A (en) Branch part of optical fiber ribbon cord
BE898103A (en) Fiber optic cable.
JP6294270B2 (en) Optical fiber cable manufacturing method
JP2019207373A (en) Optical fiber cable
JPH10148741A (en) Optical fiber ribbon
JPS6146916A (en) Optical fiber cable provided with gas dam

Legal Events

Date Code Title Description
MM Patent lapsed

Owner name: AEG-TELEFUNKEN KABELWERKE