DK170902B1 - LWL cable - Google Patents
LWL cable Download PDFInfo
- Publication number
- DK170902B1 DK170902B1 DK397089A DK397089A DK170902B1 DK 170902 B1 DK170902 B1 DK 170902B1 DK 397089 A DK397089 A DK 397089A DK 397089 A DK397089 A DK 397089A DK 170902 B1 DK170902 B1 DK 170902B1
- Authority
- DK
- Denmark
- Prior art keywords
- lwl
- wires
- cable according
- veins
- layer
- Prior art date
Links
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
- G02B6/4415—Cables for special applications
- G02B6/4416—Heterogeneous cables
- G02B6/4422—Heterogeneous cables of the overhead type
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Communication Cables (AREA)
- Glass Compositions (AREA)
- Insulated Conductors (AREA)
- Superconductors And Manufacturing Methods Therefor (AREA)
- Ropes Or Cables (AREA)
Abstract
Description
i DK 170902 B1in DK 170902 B1
LWL-KABELFO CABLE
LWL-kabler anvendes for eksempel som luftkabler til elektricitetsforsyning. LWL er en forkortelse for lysbølgele-5 der. I det specielle tilfælde med et LWL-jordledningsluft-kabel tjener lysbølgelederen som jordforbindelseskabel.For example, LWL cables are used as air cables for power supply. LWL is an abbreviation for light waveguides. In the special case with an LWL grounding air cable, the light waveguide serves as a grounding cable.
Sådanne kabler kendes for eksempel fra GB-A-1 598 540 eller DE-A-3 205 616.Such cables are known, for example, from GB-A-1 598 540 or DE-A-3 205 616.
1010
Igennem længere tid har man kendt luftkabler med en metallisk armering (jordlednings-luftkabler) med CU-ledere. Derudfra blev LWL-luftkabler afledet, idet CU-lederne blev erstattet af LWL-årer. Kernen i sådanne luftkabler består så-15 ledes af en LWL-sjæl med en mere eller mindre tyk PE-kappe. Denne kerne har en diameter på 6-10 mm. Over kernen slås et eller flere lag tråde (runde eller segmenterede). De trækkraftoptagende stål- eller aluminiumbeklædte ståltråde (stalum) er anbragt i det yderste eller det næstyderste 20 lag, for at sikre en sikker kraftovergang til spiralarmeringen. Ulempen ved sådanne luftkabler består deri, at der i luftkablets indre til LWL-sjælen nytteløst overforbruges 30-80 mm2 tværsnit af ledningen som følge deraf er kablerne 3-7 mm tykkere end lederkabler med det samme bærende/leden-25 de tværsnit.For a long time, air cables with a metallic reinforcement (grounding air cables) with CU conductors have been known. From there, LWL air cables were diverted, with the CU leaders being replaced by LWL veins. The core of such air cables thus consists of an LWL soul with a more or less thick PE jacket. This core has a diameter of 6-10 mm. Above the core, one or more layers of strands (round or segmented) are struck. The traction-absorbing steel or aluminum-clad steel (stalum) wires are arranged in the outermost or second-outermost 20 layers to ensure a safe transfer of power to the spiral reinforcement. The disadvantage of such air cables is that in the interior of the air cable to the LWL soul, 30-80 mm2 cross sections of the cord are uselessly overused as a result, the cables are 3-7 mm thicker than conductor cables of the same supporting / joint cross section.
Til grund for opfindelsen ligger den opgave at holde diameterforøgelsen på grund af den kun overførselsteknisk relevante LWL-del så lille som mulig og at beskytte LWL-30 årernes fibre sikkert mod påvirkninger fra omgivelserne som træk og tryk. Denne opgave løses ved et LWL-kabel med en kerne, LWL-årer og elektriske ledere Ifølge opfindelsen ved kendetegnene i krav 1.The object of the invention is to keep the diameter increase due to the only transfer technology-relevant LWL part as small as possible and to protect the fibers of the LWL-30 veins securely from environmental influences such as drag and pressure. This task is solved by an LWL cable with a core, LWL conductors and electrical conductors according to the invention by the features of claim 1.
35 Opfindelsen muliggør en sikker fastgørelse af luftkablerne til bære- og afspændingsmaster ved hjælp af spiralarme- DK 170902 B1 2 ringer, det vil sige at bringe stålandelen så langt udad som muligt. Desuden muliggør opfindelsen en så vidt mulig ens løsning for luftkabler med 2-12 LWL, såvel som en sikker muffemontering, det vil sige en enkel adskillelse af 5 LWL-delen eller -delene fra kablet.The invention allows for secure attachment of the air cables to the support and tensioning masts by means of helical arms, ie to bring the upright part as far out as possible. In addition, the invention enables as far as possible a solution for air cables with 2-12 LWL, as well as a secure sleeve assembly, ie a simple separation of the 5 LWL part or parts from the cable.
Går man ud fra, at ved et LWL-kabel ifølge opfindelsen er for hver maksimal 3 fibre en LWL-åre på 2 mm diameter tilstrækkelig, så andrager den nødvendige tværsnitsforøgelse 10 for et 12-fibret luftkabel for eksempel 12,5 mm2. Ved et ledningsteknisk nødvendigt tværsnit på for eksempel 150 mm2 betyder det en tværsnitsforøgelse på 8% i forhold til de hidtil kendte luftkabler på 20-52%, altså en diameterforøgelse på 4% i forhold til 10-23%. Ved et kabeltværsnit på 15 300 mm2 (Al/St 265/35) er det endda kun 2% diameterforøgel se. Det vil sige, et luftkabel ville i forhold til det sammenlignelige kabel have en diameter på 20,4 mm imod 20,0 mm. Den skildrede fordel opnås ved opfindelsen derved, at kabelelementer - som rundtråde og profiltråde - overtager 20 stillingsfikseringen og beskyttelsen af LWL-årerne.Assuming that with an LWL cable according to the invention, for each maximum 3 fibers, a LWL vein of 2 mm diameter is sufficient, then the necessary cross-sectional increase 10 for a 12-fiber air cable, for example 12.5 mm2, is sufficient. For example, in a conduit-necessary cross section of, for example, 150 mm2, this means a cross-sectional increase of 8% over the previously known air cables of 20-52%, ie a 4% increase in diameter compared to 10-23%. At a cable cross section of 15 300 mm2 (Al / St 265/35), there is even only 2% diameter increase. That is, an air cable would have a diameter of 20.4 mm versus 20.0 mm relative to the comparable cable. The claimed advantage is achieved by the invention in that cable elements - such as round wires and profile wires - take over the position fixing and protection of the LWL veins.
Opfindelsen forklares i det følgende ved hjælp af et udførelseseksempel .The invention is explained in the following by means of an exemplary embodiment.
25 Fig. 1 og 2 viser et LWL-kabel ifølge opfindelsen, hvilket kan anvendes som LWL-jordledningskabel. Ved LWL-kablet ifølge opfindelsen består kernen ifølge fig. 1 og 2 af fire med hinanden sammenslåede elektriske tråde 1, som er sammenslået til en "firer". I kernens yderkileriller, som dan-30 nes af de elektriske tråde 1, befinder der sig elektriske tråde 2, som danner et første lag, der omgiver kernen. Trådene 2 i det første lag består for eksempel af aluminium, en aluminiumlegering (Aldrey) eller af aluminiumbeklædt stål (Stalum). Trådene 2 i det første lag fikseres af 35 yderkilerilierne i den af trådene 1 dannede kerne. Af trådene 1, der danner kernen, af trådene 2, der danner det DK 170902 B1 3 første lag, såvel som af trådene 3 i et andet lag dannes kamre 4, i hvilke LWL-årerne 5 (hul/bundtårer) indlægges. Diameteren på LWL-årerne 5 og på trådene 2 i det første lag såvel som diameteren på den af trådene 1 dannede kerne og 5 dybden af kernens yderkileriller er således afstemt til hinanden, at i færdig tilstand berører den omkreds, som dannes af trådene 2 i det første lag, slet ikke henholdsvis kun lidt fikserende LWL-årerne 5. For at sikre fiberbevægeligheden over det nødvendige stuknings- og 10 udvidelsesområde og samtidig muliggøre en fleksibilitet af denne indvendige sjæl er trådene 2 i det første lag og dermed også kernens yderkileriller udført spiralformet med et slaglængdeforhold på 6-12.FIG. 1 and 2 show an LWL cable according to the invention, which can be used as an LWL grounding cable. In the LWL cable according to the invention, the core of FIG. 1 and 2 of four interconnected electrical wires 1 which are merged into a "fourer". In the outer wedge grooves of the core formed by the electrical wires 1, there are electric wires 2 which form a first layer surrounding the core. The threads 2 in the first layer, for example, consist of aluminum, an aluminum alloy (Aldrey) or of aluminum clad steel (Stalum). The wires 2 in the first layer are fixed by the 35 outer ciliaries in the core formed by the wires 1. Of the wires 1 forming the core, of the wires 2 forming the first layer, as well as of the wires 3 of a second layer, chambers 4 are formed into which the LWL veins 5 (hole / bottom tears) are inserted. The diameter of the LWL veins 5 and the threads 2 of the first layer, as well as the diameter of the core formed by the threads 1 and 5, the depth of the outer wedge grooves of the core are aligned so that in the finished state, the circumference formed by the threads 2 in the first layer, not at all, respectively only slightly fixing the LWL veins 5. In order to ensure fiber mobility over the required stretching and expansion area and at the same time to allow for flexibility of this inner soul, the threads 2 in the first layer and thus also the outer core of the core are spirally formed. with a stroke length ratio of 6-12.
15 Trådene 3 i det andet lag, der befinder sig over det15 The threads 3 in the second layer that are above it
første, såvel som trådene i eventuelle yderligere lag pålægges altid i modsat retning i forhold til trådene i laget, der befinder sig derunder. Slaglængdeforholdet for det andet lag henholdsvis yderligere lag retter sig efter 20 DIN 41 200 og ligger i størrelsesorden 10-15. Ifirst, as well as the threads in any additional layers are always applied in the opposite direction to the threads in the layer located below. The stroke length ratio of the second layer or additional layer, respectively, is 20 DIN 41 200 and is in the range of 10-15. IN
udførelseseksemplet danner den af trådene 1 dannede kerne, trådene 2 i det første lag såvel som trådene 3 i det andet lag sikre stabile kamre 4 for LWL-årerne 5.The exemplary embodiment forms the core formed by the threads 1, the threads 2 in the first layer as well as the threads 3 in the second layer ensuring stable chambers 4 for the LWL veins 5.
25 Trådene i de enkelte lag kan have forskellig diameter.25 The threads in each layer may have different diameters.
Claims (11)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE3836466 | 1988-10-26 | ||
DE3836466A DE3836466A1 (en) | 1988-10-26 | 1988-10-26 | FO CABLES |
Publications (3)
Publication Number | Publication Date |
---|---|
DK397089D0 DK397089D0 (en) | 1989-08-11 |
DK397089A DK397089A (en) | 1990-04-27 |
DK170902B1 true DK170902B1 (en) | 1996-03-04 |
Family
ID=6365958
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DK397089A DK170902B1 (en) | 1988-10-26 | 1989-08-11 | LWL cable |
Country Status (6)
Country | Link |
---|---|
EP (1) | EP0365759B1 (en) |
AT (1) | ATE119682T1 (en) |
DE (2) | DE3836466A1 (en) |
DK (1) | DK170902B1 (en) |
ES (1) | ES2070869T3 (en) |
FI (1) | FI100744B (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NO175119C (en) * | 1992-02-06 | 1994-08-31 | Alcatel Stk As | Fiber optic cable |
WO2011094257A1 (en) * | 2010-01-27 | 2011-08-04 | Afl Telecommunications Llc | Logging cable |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2604766C3 (en) * | 1976-02-07 | 1981-12-24 | Kabel- und Metallwerke Gutehoffnungshütte AG, 3000 Hannover | Phase cable for high-voltage overhead line networks for the simultaneous transmission of energy and information |
GB1598540A (en) * | 1978-05-31 | 1981-09-23 | Ass Elect Ind | Electro-optical cables |
US4365865A (en) * | 1981-01-30 | 1982-12-28 | Sea-Log Corporation | Hybrid cable construction |
DE3205616C2 (en) * | 1982-02-17 | 1983-12-08 | Siemens AG, 1000 Berlin und 8000 München | Overhead cable with fiber optics for the transmission of messages |
DE3335325A1 (en) * | 1983-09-27 | 1985-04-04 | Siemens AG, 1000 Berlin und 8000 München | FLEXIBLE POWER LINE WITH PROFILE CORE AND CARRIER |
GB8619308D0 (en) * | 1986-08-07 | 1986-09-17 | Telephone Cables Ltd | Optical cables |
DE8711314U1 (en) * | 1987-08-20 | 1987-12-17 | Felten & Guilleaume Energietechnik AG, 5000 Köln | Control and signal cables with integrated optical fibers |
-
1988
- 1988-10-26 DE DE3836466A patent/DE3836466A1/en not_active Withdrawn
-
1989
- 1989-07-15 ES ES89113008T patent/ES2070869T3/en not_active Expired - Lifetime
- 1989-07-15 DE DE58909083T patent/DE58909083D1/en not_active Expired - Fee Related
- 1989-07-15 AT AT89113008T patent/ATE119682T1/en active
- 1989-07-15 EP EP89113008A patent/EP0365759B1/en not_active Expired - Lifetime
- 1989-08-11 DK DK397089A patent/DK170902B1/en not_active IP Right Cessation
- 1989-10-02 FI FI894645A patent/FI100744B/en not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
DK397089A (en) | 1990-04-27 |
ATE119682T1 (en) | 1995-03-15 |
DK397089D0 (en) | 1989-08-11 |
EP0365759B1 (en) | 1995-03-08 |
DE3836466A1 (en) | 1990-05-03 |
FI100744B (en) | 1998-02-13 |
ES2070869T3 (en) | 1995-06-16 |
DE58909083D1 (en) | 1995-04-13 |
FI894645A (en) | 1990-04-27 |
EP0365759A2 (en) | 1990-05-02 |
EP0365759A3 (en) | 1991-05-08 |
FI894645A0 (en) | 1989-10-02 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
B1 | Patent granted (law 1993) | ||
PBP | Patent lapsed |