EP0119155B1 - Stranded conductor for flexible electrical cables and method of manufacturing it - Google Patents
Stranded conductor for flexible electrical cables and method of manufacturing it Download PDFInfo
- Publication number
- EP0119155B1 EP0119155B1 EP84730006A EP84730006A EP0119155B1 EP 0119155 B1 EP0119155 B1 EP 0119155B1 EP 84730006 A EP84730006 A EP 84730006A EP 84730006 A EP84730006 A EP 84730006A EP 0119155 B1 EP0119155 B1 EP 0119155B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- stranded
- wires
- stranded conductor
- conductor
- electrical cables
- 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
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Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B5/00—Non-insulated conductors or conductive bodies characterised by their form
- H01B5/08—Several wires or the like stranded in the form of a rope
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B13/00—Apparatus or processes specially adapted for manufacturing conductors or cables
-
- 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
- H01B7/04—Flexible cables, conductors, or cords, e.g. trailing cables
Definitions
- the invention is in the field of electrical cables and wires and can be used in the design and manufacture of stranded conductors for flexible electrical lines.
- the individual stranded elements are produced by saponifying or choking several fine individual wires.
- the individual wires are firmly assigned to each other in layers. To do this, they run from supply spools that rotate about the stranding axis. - When strangling, the individual wires are not clearly assigned to each other. They run from fixed supplies and are gagged together (twisted) by a twisting device located behind the nipple.
- a stranded wire as used in electrical cables and wires, can consist of a single stranded element (stranded or strangled) or - especially with a larger electrical conductor cross-section - of several stranded or strangled stranded elements (stranded or strangled), also called bundles.
- Stranded strand elements so-called strand legs, contain a certain number of individual wires due to the layer structure.
- Choked strand elements, so-called bundles can consist of any number of individual wires in the range between 10 and 100 wires. Constructions are also common in which a smaller number of individual wires form a choked sub-element and several choked sub-elements form the actual strand element, namely the bundle. (DE-OS 29 25 050).
- the invention is based on the task of stranded conductors which have an electrically effective cross section of at least 16 mm 2 and consist of at least 80 fine wires to assemble and manufacture so that - compared to the known structures - with the same electrical cross-section results in a smaller spatial cross-section.
- the bundles consist of at least two tresses, four to eight wires coming from a multiple wire drawing machine being combined to form one tress and several such tresses being fused into a bundle.
- the wires can be better nested one inside the other, as a result of which the conductor becomes smaller in diameter.
- a lower material consumption is achieved when applying the insulation for a given wall thickness.
- smaller diameter smaller dimensions in the core and outer diameter also occur with multi-core cables. so that there is also less material here. consumption of inner and outer shells.
- the stranding is associated with lower costs than the usual gagging.
- An electrical conductor constructed in accordance with the invention can be considered for all movable electrical lines.
- four to eight wires form a strand.
- Two to about ten strands are then folded into a bundle, while the bundles are stranded in layers to the stranded conductor, for example in the staggering 1 + 6 + 12 + 18 etc. or 3 + 9 + 15 + 21 etc.
- FIGS. 1 and 2 A stranded conductor designed according to the invention is shown in FIGS. 1 and 2, while the manufacture of the bundles forming the stranded conductor is shown schematically in FIGS. 3 and 4.
- Fig. 1 shows a stranded conductor 1, which consists of seven bundles 2 stranded together in layers. 2, each bundle 2 consists of three strands 3, 4 and 5, which in turn are each composed of six individual wires 31, 41 and 51.
- Fig. 3 shows three parallel multi-wire drawing machines 10, from each of which six individual wires 31 or 41 and 51 emerge and combined in the nipple 11 to form a strand 3 or 4 and 5 and then wound onto the winding drums 12, 13 and 14.
- the strands 3, 4 and 5 run from the drums 12, 13 and 14 and are folded into a base bundle 2 in the nipple 15 and then wound onto the winding drum 16.
- Several such bundles 2 are stranded in layers in a third operation to the stranded conductor.
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Processes Specially Adapted For Manufacturing Cables (AREA)
- Wire Processing (AREA)
- Non-Insulated Conductors (AREA)
Description
Die Erfindung liegt auf dem Gebiet der elektrischen Kabel und Leitungen und ist bei der Konstruktion und Herstellung von Litzenleitern für flexible elektrische Leitungen anzuwenden.The invention is in the field of electrical cables and wires and can be used in the design and manufacture of stranded conductors for flexible electrical lines.
Bei der Herstellung von aus Litzenelementen aufgebauten Litzenleitern für elektrische Kabel und Leitungen werden die einzelnen Litzenelemente durch Verseifen oder Verwürgen mehrerer feiner Einzeldrähte hergestellt. Bei der Verseilung werden die Einzeldrähte einander lagenweise fest zugeordnet. Sie laufen dazu von Vorratsspulen ab, die um die Verseilachse rotieren. - Beim Verwürgen werden die Einzeldrähte einander nicht eindeutig zugeordnet. Sie laufen von raumfest angeordneten Vorräten ab und werden durch eine hinter dem Verwürgnippel angeordnete Verdrehungsvorrichtung miteinander verwürgt (verlitzt).In the manufacture of stranded conductors made of stranded elements for electrical cables and wires, the individual stranded elements are produced by saponifying or choking several fine individual wires. When stranding, the individual wires are firmly assigned to each other in layers. To do this, they run from supply spools that rotate about the stranding axis. - When strangling, the individual wires are not clearly assigned to each other. They run from fixed supplies and are gagged together (twisted) by a twisting device located behind the nipple.
Ein Litzenleiter, wie er in elektrischen Kabeln und Leitungen eingesetzt wird, kann aus einem einzigen Litzenelement (verseilt oder verwürgt) oder- insbesondere bei größerem elektrischem Leiterquerschnitt - aus mehreren miteinander verseilten oder verwürgten Litzenelementen (verseilt oder verwürgt), auch Bündel genannt, bestehen. Verseilte Litzenelemente, sogenannte Litzenschenkel, enthalten infolge des Lagenaufbaus eine ganz bestimmte Anzahl von Einzeldrähten. Verwürgte Litzenelemente, sogenannte Bündel, können aus beliebig vielen Einzeldrähten im Bereich zwischen 10 und 100 Drähten bestehen. Dabei sind auch Aufbauten üblich, bei denen jeweils eine kleinere Anzahl von Einzeldrähten ein verwürgtes Unterelement und mehrere miteinander verwürgte Unterelemente das eigentliche Litzenelement, nämlich das Bündel, bilden. (DE-OS 29 25 050).A stranded wire, as used in electrical cables and wires, can consist of a single stranded element (stranded or strangled) or - especially with a larger electrical conductor cross-section - of several stranded or strangled stranded elements (stranded or strangled), also called bundles. Stranded strand elements, so-called strand legs, contain a certain number of individual wires due to the layer structure. Choked strand elements, so-called bundles, can consist of any number of individual wires in the range between 10 and 100 wires. Constructions are also common in which a smaller number of individual wires form a choked sub-element and several choked sub-elements form the actual strand element, namely the bundle. (DE-OS 29 25 050).
Ausgehend von einem Litzenleiter mit den Merkmalen des Oberbegriffes des Anspruches 1 und ausgehend von einem Verfahren zur Herstellung eines Litzenleiters unter Anwendung der Merkmale des Oberbegriffes des Anspruches 2 liegt der Erfindung die Aufgabe zugrunde, Litzenleiter, die einen elektrisch wirksamen Querschnitt von wenigstens 16 mm2 aufweisen und aus wenigstens 80 feinen Drähten bestehen, so aufzubauen und herzustellen, daß sich - im Vergleich zu den bekannten Aufbauten - bei gleichem elektrischen Querschnitt ein kleinerer räumlicher Querschnitt ergibt.Starting from a stranded conductor with the features of the preamble of claim 1 and starting from a method for producing a stranded conductor using the features of the preamble of
Zur Lösung dieser Aufgabe ist gemäß der Erfindung vorgesehen, daß die Bündel aus wenigstens zwei gefachten Strähnen bestehen, wobei jeweils vier bis acht aus einer Mehrfachdrahtziehmaschine kommende Drähte zu einer Strähne zusammengefaßt und mehrere solcher Strähnen zu einem Bündel gefacht werden.To achieve this object, it is provided according to the invention that the bundles consist of at least two tresses, four to eight wires coming from a multiple wire drawing machine being combined to form one tress and several such tresses being fused into a bundle.
Bei einem derartigen konstruktiven Aufbau des Litzenleiters lassen sich die Drähte besser ineinander verschachteln, wodurch der Leiter im Durchmesser kleiner wird. Demzufolge wird beim Aufbringen der Isolierung bei gegebener Wandstärke ein geringerer Materialverbrauch erzielt. Infolge des kleineren Durchmessers treten auch bei mehradrigen Leitungen kleinere Abmessungen im Seelen- und Außendurchmesser auf. so daß sich auch hier ein geringerer Material. verbrauch bei Innen- und Außenmänteln einstellt. Hinsichtlich der Herstellung des Leiters ist das Fachen von Strähnen mit geringeren Kosten als das bischer übliche Verwürgen verbunden.With such a structural design of the stranded conductor, the wires can be better nested one inside the other, as a result of which the conductor becomes smaller in diameter. As a result, a lower material consumption is achieved when applying the insulation for a given wall thickness. As a result of the smaller diameter, smaller dimensions in the core and outer diameter also occur with multi-core cables. so that there is also less material here. consumption of inner and outer shells. With regard to the production of the conductor, the stranding is associated with lower costs than the usual gagging.
Ein gemäß der Erfindung aufgebauter elektrischer Leiter kommt für alle beweglichen elektrischen Leitungen in Betracht. Bei der Herstellung der Strähnen bilden je nach Ausgestaltung der Drahtziehmaschine vier bis acht Drähte eine Strähne. Zwei bis etwa zehn Strähnen werden dann zu einem Bündel gefacht, während die Bündel lagenweise zum Litzenleiter verseilt werden, beispielsweise in der Staffelung 1 + 6 + 12 + 18usw.oder 3 + 9 + 15 + 21 usw.An electrical conductor constructed in accordance with the invention can be considered for all movable electrical lines. In the manufacture of the strands, depending on the design of the wire drawing machine, four to eight wires form a strand. Two to about ten strands are then folded into a bundle, while the bundles are stranded in layers to the stranded conductor, for example in the staggering 1 + 6 + 12 + 18 etc. or 3 + 9 + 15 + 21 etc.
Ein gemäß der Erfindung ausgebildeter Litzenleiter ist in den Fig. 1 und 2 dargestellt, während die Herstellung der den Litzenleiter bildenden Bündel in den Fig. 3 und 4 schematisch dargestellt ist.A stranded conductor designed according to the invention is shown in FIGS. 1 and 2, while the manufacture of the bundles forming the stranded conductor is shown schematically in FIGS. 3 and 4.
Fig. 1 zeigt einen Litzenleiter 1, der aus sieben lagenweise miteinander verseilten Bündeln 2 besteht. Gemäß Fig. 2 besteht jedes Bündel 2 aus drei Strähnen 3, 4 und 5, die wiederum aus jeweils sechs Einzeldrähten 31, 41 und 51 aufgebaut sind.Fig. 1 shows a stranded conductor 1, which consists of seven
Fig. 3 zeigt drei parallel angeordnete Mehrfachdrahtziehmaschinen 10, aus denen jeweils sechs Einzeldrähte 31 bzw. 41 und 51 austreten und im Nippel 11 zu einer Strähne 3 bzw. 4 und 5 zusammengefaßt und anschließend auf die Aufwickeitrommeln 12, 13 und 14 aufgewickelt werden. In einem zweiten Arbeitsschritt laufen die Strähnen 3,4 und 5 von den Trommeln 12, 13 und 14 ab und werden im Nippel 15 zu einem Grundbündel 2 gefacht und anschließend auf die Aufwickeltrommel 16 aufgewickelt. - Mehrere solcher Bündel 2 werden in einem dritten Arbeitsgang lagenweise zum Litzenleiter verseilt.Fig. 3 shows three parallel
Claims (2)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE3305191 | 1983-02-11 | ||
DE19833305191 DE3305191A1 (en) | 1983-02-11 | 1983-02-11 | LADDER LADDER FOR FLEXIBLE ELECTRICAL CABLES AND METHOD FOR THE PRODUCTION THEREOF |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0119155A1 EP0119155A1 (en) | 1984-09-19 |
EP0119155B1 true EP0119155B1 (en) | 1986-04-09 |
Family
ID=6190899
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP84730006A Expired EP0119155B1 (en) | 1983-02-11 | 1984-01-30 | Stranded conductor for flexible electrical cables and method of manufacturing it |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP0119155B1 (en) |
DE (2) | DE3305191A1 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102008027295B4 (en) * | 2008-06-06 | 2010-05-06 | Dlb Draht Und Litzen Gmbh | Method for producing a stranded wire and strand of a plurality of individual wires |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR423695A (en) * | 1909-12-17 | 1911-04-24 | Societe Internationale D Eclairage Par Le Gaz D Hu | Ignition valve for railway car lamps, with gas reserve and permanent ignition flame, reduced during combustion of the main flame |
FR1198126A (en) * | 1958-06-02 | 1959-12-04 | Acec | Winding conductor for battleship-nested transformers |
FR2430073A1 (en) * | 1978-06-26 | 1980-01-25 | Renault Ind Belgique Sa | Multicore cable prodn. machine - has multiple wire drawing unit feeding several conductors into insulation extrusion system |
-
1983
- 1983-02-11 DE DE19833305191 patent/DE3305191A1/en not_active Withdrawn
-
1984
- 1984-01-30 DE DE8484730006T patent/DE3460073D1/en not_active Expired
- 1984-01-30 EP EP84730006A patent/EP0119155B1/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
DE3460073D1 (en) | 1986-05-15 |
EP0119155A1 (en) | 1984-09-19 |
DE3305191A1 (en) | 1984-08-16 |
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