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EP2117011B1 - Flexible electrical conductor - Google Patents

Flexible electrical conductor Download PDF

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Publication number
EP2117011B1
EP2117011B1 EP08290380A EP08290380A EP2117011B1 EP 2117011 B1 EP2117011 B1 EP 2117011B1 EP 08290380 A EP08290380 A EP 08290380A EP 08290380 A EP08290380 A EP 08290380A EP 2117011 B1 EP2117011 B1 EP 2117011B1
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EP
European Patent Office
Prior art keywords
elements
conductor
diameter
filling
basic
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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.)
Not-in-force
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EP08290380A
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German (de)
French (fr)
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EP2117011A1 (en
Inventor
Ferdinand Grögl
Harry Popp
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Nexans SA
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Nexans SA
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Publication date
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Priority to AT08290380T priority Critical patent/ATE493741T1/en
Priority to EP08290380A priority patent/EP2117011B1/en
Priority to DE502008002135T priority patent/DE502008002135D1/en
Publication of EP2117011A1 publication Critical patent/EP2117011A1/en
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Publication of EP2117011B1 publication Critical patent/EP2117011B1/en
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    • 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
    • H01B7/0009—Details relating to the conductive cores
    • 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 relates to a flexible electrical conductor, which consists of a number of stranded, wire-shaped metallic base elements and in the formed between two basic elements, located on the circumference of the conductor outer windings and lying within the perimeter of the conductor metallic filling elements, whose diameter is less than the diameter of the primitives ( DE 33 05 190 A1 ).
  • Such conductors have long been known as so-called stranded conductors and used for a wide variety of applications.
  • An essential feature of such a conductor is its good flexibility. It is used with a smaller cross-section, for example, in data lines or in lines for medical technology and with a slightly larger cross-section in lines for automation technology, shipbuilding or railways.
  • the line attenuation or the characteristic impedance of the conductors are of essential importance. Suitable values can generally be achieved with a correspondingly large conductor cross-section. However, there are also applications in which a maximum permissible conductor cross-section or a maximum diameter of a conductor consisting of conductor and insulation are prescribed. In order to be able to comply with the specified electrical values even with corresponding expenditure of conductive material (copper), the conductor is finally compressed by a drawing process. Its bendability is then significantly worsened.
  • the electrical conductor according to the above-mentioned DE 33 05 190 A1 has an electrically effective cross section of at least 4 mm 2 .
  • the invention has for its object to make a conductor of the type described so that it has a suitable for high-frequency transmission purposes line attenuation while maintaining its good flexibility at a diameter of 1.0 mm maximum.
  • This ladder is simple yet dimensionally accurate because of the use of solid wires for primitives and fillers despite its very small dimensions. It can therefore be used with a maximum cross section of 0.62 mm 2 for existing or standardized systems for high-frequency data transmission.
  • the conductor is because of the massive wires with It is flexible, because the wires are arranged to be movable without final deformation in the conductor structure, and it has a low conductor resistance due to its increased by the filling elements content of electrically conductive material with correspondingly smaller line attenuation.
  • the conductor resistance can be adapted in this conductor in a simple manner by means of the filling elements very precisely to predetermined limits.
  • the maximum cross-section of the filling elements is given by the circumference of the conductor over which they should not protrude. However, they may also have a smaller cross-section, so that, if appropriate, a resulting smaller electrically effective cross-section results in unchanged conductor diameter for the conductor.
  • the central basic element can be constructed as well as the six basic elements arranged around it. However, it can also be designed as a preferably tinned steel wire, as a stainless steel wire or as a copper-plated steel wire to increase the tensile strength of the conductor.
  • the conductor resistance of the conductor can be adapted to predetermined limits with further variation possibilities.
  • a run rack 1 in which seven coils 2 and six coils 3 are arranged rotatably about their axes.
  • massive wires of electrically good conductive material are wound as basic elements 4, while on the seventh coil, a base member 5 is wound, which may consist of electrically good conductive material or a preferably tin-plated steel wire, a stainless steel wire or a copper-plated steel wire ,
  • On the Coils 3 are solid wires of electrically good conductive material wound as filling elements 6. The wires are withdrawn from the coils 2 and 3 by means of a known, not shown deduction in the direction of the arrow 7 and stranded in a stranding nipple 8 to a conductor 9 together.
  • the wires of the base elements 4 and the filling elements 6 are preferably made of copper. They can be used as bare wires. However, they can also be tinned, nickel-plated or silver-plated, for example.
  • the basic element 5 can - as already mentioned - as well as the basic elements 4 are executed. But it may also be a preferably tinned steel wire or a wire made of stainless steel or a copper-plated steel wire.
  • the run-off frame 1 can advantageously be rotated about its axis.
  • the lay length of the stranding is advantageously between 9 ⁇ D and 18 ⁇ D, with the diameter D of the conductor 9.
  • Fig. 1 purely schematically illustrated arrangement can be used in modern technology and coils in which the basic elements 4 and 5, as well as the filling elements 6 are each wound only on a spool.
  • all stranding elements are fanned out before the stranding point and passed through at least one distributor disc.
  • the centrally located base element 5 is optionally wound separately on a separate coil.
  • the conductor 9 is made according to Fig. 2 in a concentric structure of a centrally located base element 5 and six basic elements 4.
  • the six basic elements 4 are wound around the centrally located base elements 5 around.
  • the six filling elements 6 are in the reconnectenzwickeln between the six basic elements 4. Their cross-section or diameter is dimensioned so that they do not protrude beyond the dashed line perimeter 10 of the conductor 9.
  • the filling elements 6 According to the graphic representation in Fig. 2 the filling elements 6 have the maximum permissible cross section. However, they can also have a smaller cross section for adapting the conductor resistance of the conductor 9 to given values.
  • the structure of the conductor 9 will be given below for two examples.
  • the seven basic elements 4 each have a diameter of 0.32 mm.
  • the diameter of the six filling elements 6 is in each case between 0.09 mm and 0.11 mm.
  • the total cross section of the conductor 9 is between 0.06 mm 2 and 0.62 mm 2 .
  • the seven basic elements 4 each have a diameter of 0.1 mm.
  • the diameter of the six filling elements 6 is in each case between 0.03 mm and 0.035 mm.
  • the total cross section of the conductor 9 is between 0.06 mm 2 and 0.061 mm 2 .

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  • Insulated Conductors (AREA)
  • Wire Processing (AREA)
  • Non-Insulated Conductors (AREA)
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Abstract

The electrical line (9) has metallic base elements (4) with diameter between 0.1 and 0.32 millimeter arranged in a concentric structure on which the base elements strand around centrally lying base element (5). Metallic filling elements (6) lie inside a circumference (10) of the line, where a diameter of the filling elements is smaller than the diameter of the base elements. The base and the filling elements are formed as massive wires, where a width of the electrical line lies between 0.06 square millimeters and 0.62 square millimeters.

Description

Die Erfindung bezieht sich auf einen flexiblen elektrischen Leiter, welcher aus einer Anzahl von miteinander verseilten, drahtförmigen metallischen Grundelementen und in den zwischen je zwei Grundelementen gebildeten, am Umfang des Leiters liegenden Außenzwickeln angeordneten und innerhalb des Umkreises des Leiters liegenden metallischen Füllelementen besteht, deren Durchmesser kleiner als der Durchmesser der Grundelemente ist ( DE 33 05 190 A1 ).The invention relates to a flexible electrical conductor, which consists of a number of stranded, wire-shaped metallic base elements and in the formed between two basic elements, located on the circumference of the conductor outer windings and lying within the perimeter of the conductor metallic filling elements, whose diameter is less than the diameter of the primitives ( DE 33 05 190 A1 ).

Derartige Leiter sind als sogenannte Litzenleiter seit langem bekannt und für unterschiedlichste Anwendungen eingesetzt. Wesentliches Merkmal eines solchen Leiters ist seine gute Biegbarkeit. Er wird mit kleinerem Querschnitt beispielsweise in Datenleitungen oder in Leitungen für die Medizintechnik und mit etwas größerem Querschnitt in Leitungen für die Automatisierungstechnik, für den Schiffbau oder für Bahnen eingesetzt.Such conductors have long been known as so-called stranded conductors and used for a wide variety of applications. An essential feature of such a conductor is its good flexibility. It is used with a smaller cross-section, for example, in data lines or in lines for medical technology and with a slightly larger cross-section in lines for automation technology, shipbuilding or railways.

Für viele Anwendungen, beispielsweise für im Hochfrequenzbereich zu betreibende Datenleitungen, sind die Leitungsdämpfung bzw. der Wellenwiderstand der Leiter von wesentlicher Bedeutung. Geeignete Werte sind grundsätzlich mit einem entsprechend großen Leiterquerschnitt erreichbar. Es gibt aber auch Anwendungsfälle, in denen ein maximal zulässiger Leiterquerschnitt bzw. ein maximaler Durchmesser einer aus Leiter und Isolierung bestehenden Ader vorgeschrieben sind. Um auch dann mit entsprechendem Aufwand an leitendem Material (Kupfer) die angegebenen elektrischen Werte einhalten zu können, wird der Leiter abschließend durch einen Ziehvorgang komprimiert. Seine Biegbarkeit ist dann aber wesentlich verschlechtert. Der elektrische Leiter nach der eingangs erwähnten DE 33 05 190 A1 hat einen elektrisch wirksamen Querschnitt von mindestens 4 mm2. Er besteht aus drei Bündeln aus einer größeren Anzahl feiner Drähte und in den Außenzwickeln zwischen den Bündeln angeordneten Litzenelementen. Durch die zusätzlichen Litzenelemente kann der räumliche Querschnitt des Leiters bei gleichem elektrisch wirksamem Querschnitt gegenüber einem Leiter ohne die Litzenelemente kleiner gehalten werden. Dieser Aufbau des Leiters gilt für einen Querschnitt desselben von mindestens 4 mm2. Kleinere und sogar sehr viel kleinere Querschnitte eines flexiblen Leiters sind in dieser Schrift ausgeschlossen. Sie enthält auch keinen Hinweis auf hochfrequente Datenübertragung.For many applications, for example for data lines to be operated in the high-frequency range, the line attenuation or the characteristic impedance of the conductors are of essential importance. Suitable values can generally be achieved with a correspondingly large conductor cross-section. However, there are also applications in which a maximum permissible conductor cross-section or a maximum diameter of a conductor consisting of conductor and insulation are prescribed. In order to be able to comply with the specified electrical values even with corresponding expenditure of conductive material (copper), the conductor is finally compressed by a drawing process. Its bendability is then significantly worsened. The electrical conductor according to the above-mentioned DE 33 05 190 A1 has an electrically effective cross section of at least 4 mm 2 . It consists of three bundles of a larger number of fine wires and strand elements arranged in the outer wraps between the bundles. Due to the additional strand elements, the spatial cross-section of the conductor can be kept smaller with the same electrically effective cross section with respect to a conductor without the strand elements. This structure of the conductor applies to a cross section thereof of at least 4 mm 2 . Smaller and even much smaller cross-sections of a flexible conductor are excluded in this document. It also contains no indication of high-frequency data transmission.

Der Erfindung liegt die Aufgabe zugrunde, einen Leiter der eingangs geschilderten Art so zu gestalten, daß er unter Beibehalt seiner guten Biegbarkeit bei einem Durchmesser von maximal 1,0 mm eine für hochfrequente Übertragungszwecke geeignete Leitungsdämpfung aufweist.The invention has for its object to make a conductor of the type described so that it has a suitable for high-frequency transmission purposes line attenuation while maintaining its good flexibility at a diameter of 1.0 mm maximum.

Diese Aufgabe wird gemäß der Erfindung dadurch gelöst,

  • daß Grundelemente und Füllelemente als massive Drähte ausgeführt sind,
  • daß sieben Grundelemente mit einem zwischen 0,1 mm und 0,32 mm liegenden Durchmesser in konzentrischem Aufbau angeordnet sind, von denen sechs Grundelemente um ein zentral liegendes Grundelement herum verseilt sind,
  • daß in den Außenzwickeln zwischen den Grundelementen sechs Füllelemente mit einem zwischen 0,03 mm und 0,11 mm liegenden Durchmesser angeordnet sind, die ohne nachträgliche Verformung innerhalb des Umkreises des Leiters liegen, und
  • daß der Querschnitt des aus Grundelementen und Füllelementen gebildeten Leiters zwischen 0,06 mm2 und 0,62 mm2 liegt.
This object is achieved according to the invention characterized
  • that basic elements and filling elements are designed as solid wires,
  • that seven basic elements are arranged with a diameter of between 0.1 mm and 0.32 mm in concentric construction, of which six basic elements are stranded around a central basic element,
  • that in the Außenenzwickeln between the basic elements six filling elements are arranged with a lying between 0.03 mm and 0.11 mm diameter, which are without subsequent deformation within the circumference of the conductor, and
  • that the cross section of the conductor formed from base elements and filling elements is between 0.06 mm 2 and 0.62 mm 2 .

Dieser Leiter ist wegen der Verwendung von massiven Drähten für Grundelemente und Füllelemente trotz seiner sehr kleinen Abmessungen einfach, aber maßgenau herstellbar. Er ist dadurch mit einem maximalen Querschnitt von 0,62 mm2 für bestehende bzw. genormte Systeme zur hochfrequenten Datenübertragung einsetzbar. Das gilt beispielsweise für mehradrige Datenleitungen, deren Leiter ohne Entfernung der sie umgebenden Isolierung an Stecker des bekannten bzw. genormten Steckersystems RJ-45 angeschlossen werden sollen. Der Leiter ist wegen der massiven Drähte mit herkömmlichen Anlagen herstellbar, er ist flexibel, weil die Drähte ohne abschließende Verformung im Leiteraufbau bewegbar angeordnet sind, und er hat wegen seines durch die Füllelemente erhöhten Inhalts an elektrisch leitendem Material einen niedrigen Leiterwiderstand mit dadurch entsprechend kleinerer Leitungsdämpfung. Der Leiterwiderstand kann bei diesem Leiter auf einfache Weise mittels der Füllelemente sehr genau an vorgegebene Grenzwerte angepaßt werden. Der maximale Querschnitt der Füllelemente ist durch den Umkreis des Leiters gegeben, über den sie nicht hinausragen sollen. Sie können jedoch auch einen kleineren Querschnitt haben, so daß sich für den Leiter gegebenenfalls auch ein resultierender kleinerer elektrisch wirksamer Querschnitt bei unverändertem Leiterdurchmesser ergibt.This ladder is simple yet dimensionally accurate because of the use of solid wires for primitives and fillers despite its very small dimensions. It can therefore be used with a maximum cross section of 0.62 mm 2 for existing or standardized systems for high-frequency data transmission. This applies, for example, to multi-core data lines whose conductors are to be connected to the plug of the known or standardized plug system RJ-45 without removing the surrounding insulation. The conductor is because of the massive wires with It is flexible, because the wires are arranged to be movable without final deformation in the conductor structure, and it has a low conductor resistance due to its increased by the filling elements content of electrically conductive material with correspondingly smaller line attenuation. The conductor resistance can be adapted in this conductor in a simple manner by means of the filling elements very precisely to predetermined limits. The maximum cross-section of the filling elements is given by the circumference of the conductor over which they should not protrude. However, they may also have a smaller cross-section, so that, if appropriate, a resulting smaller electrically effective cross-section results in unchanged conductor diameter for the conductor.

Das zentral liegende Grundelement kann ebenso wie die sechs darum herum angeordneten Grundelemente aufgebaut sein. Es kann aber zur Erhöhung der Zugfestigkeit des Leiters auch als vorzugsweise verzinnter Stahldraht, als Edelstahldraht oder als kupferplattierter Stahldraht ausgeführt sein. Der Leiterwiderstand des Leiters kann dadurch mit weiteren Variationsmöglichkeiten an vorgegebene Grenzwerte angepaßt werden.The central basic element can be constructed as well as the six basic elements arranged around it. However, it can also be designed as a preferably tinned steel wire, as a stainless steel wire or as a copper-plated steel wire to increase the tensile strength of the conductor. The conductor resistance of the conductor can be adapted to predetermined limits with further variation possibilities.

Ein Ausführungsbeispiel des Erfindungsgegenstandes wird im folgenden anhand der Zeichnungen erläutert.An embodiment of the subject invention is explained below with reference to the drawings.

Es zeigen:

  • Fig. 1 in rein schematischer Darstellung eine Anordnung zur Herstellung des Leiters nach der Erfindung.
  • Fig. 2 einen Querschnitt des Leiters in vergrößerter Darstellung - ohne Schraffur der Schnittflächen.
Show it:
  • Fig. 1 in a purely schematic representation of an arrangement for producing the conductor according to the invention.
  • Fig. 2 a cross section of the conductor in an enlarged view - without hatching of the cut surfaces.

In Fig. 1 ist schematisch ein Ablaufgestell 1 dargestellt, in dem sieben Spulen 2 und sechs Spulen 3 um ihre Achsen drehbar angeordnet sind. Auf sechs der Spulen 2 sind massive Drähte aus elektrisch gut leitendem Material als Grundelemente 4 aufgewickelt, während auf der siebten Spule ein Grundelement 5 aufgewickelt ist, das aus elektrisch gut leitendem Material bestehen oder ein vorzugsweise verzinnter Stahldraht, ein Edelstahldraht oder ein kupferplattierter Stahldraht sein kann. Auf den Spulen 3 sind massive Drähte aus elektrisch gut leitendem Material als Füllelemente 6 aufgewickelt. Die Drähte werden von den Spulen 2 und 3 mittels eines an sich bekannten, nicht mit dargestellten Abzugs in Richtung des Pfeiles 7 abgezogen und in einem Verseilnippel 8 zu einem Leiter 9 miteinander verseilt.In Fig. 1 schematically a run rack 1 is shown in which seven coils 2 and six coils 3 are arranged rotatably about their axes. On six of the coils 2 massive wires of electrically good conductive material are wound as basic elements 4, while on the seventh coil, a base member 5 is wound, which may consist of electrically good conductive material or a preferably tin-plated steel wire, a stainless steel wire or a copper-plated steel wire , On the Coils 3 are solid wires of electrically good conductive material wound as filling elements 6. The wires are withdrawn from the coils 2 and 3 by means of a known, not shown deduction in the direction of the arrow 7 and stranded in a stranding nipple 8 to a conductor 9 together.

Die Drähte der Grundelemente 4 und der Füllelemente 6 bestehen vorzugsweise aus Kupfer. Sie können als blanke Drähte eingesetzt werden. Sie können beispielsweise aber auch verzinnt, vernickelt oder versilbert sein. Das Grundelement 5 kann - wie bereits erwähnt - ebenso wie die Grundelemente 4 ausgeführt sein. Es kann aber auch ein vorzugsweise verzinnter Stahldraht oder ein Draht aus Edelstahl oder ein kupferplattierter Stahldraht sein.The wires of the base elements 4 and the filling elements 6 are preferably made of copper. They can be used as bare wires. However, they can also be tinned, nickel-plated or silver-plated, for example. The basic element 5 can - as already mentioned - as well as the basic elements 4 are executed. But it may also be a preferably tinned steel wire or a wire made of stainless steel or a copper-plated steel wire.

Für die Verseilung von Grundelementen 4 und 5 sowie Füllelementen 6 als Verseilelemente im Verseilnippel 8 kann das Ablaufgestell 1 mit Vorteil um seine Achse gedreht werden. Es ist jedoch auch möglich, die Verseilelemente von den Spulen 2 und 3 in einem feststehenden Ablaufgestell 1 abzuziehen und die Verseilung durch eine nicht mit dargestellte Aufwickelspule zu erreichen, auf welche der Leiter 9 aufgewickelt wird und die um ihre Achse gedreht wird. Die Schlaglänge der Verseilung liegt mit Vorteil zwischen 9 x D und 18 x D, mit dem Durchmesser D des Leiters 9.For the stranding of basic elements 4 and 5 as well as filling elements 6 as stranding elements in the stranding nipple 8, the run-off frame 1 can advantageously be rotated about its axis. However, it is also possible to deduct the stranding of the coils 2 and 3 in a fixed storage rack 1 and to achieve the stranding by a take-up reel not shown, on which the conductor 9 is wound and which is rotated about its axis. The lay length of the stranding is advantageously between 9 × D and 18 × D, with the diameter D of the conductor 9.

Statt der in Fig. 1 rein schematisch dargestellten Anordnung können in moderner Technik auch Spulen eingesetzt werden, in denen die Grundelemente 4 und 5 ebenso wie die Füllelemente 6 jeweils nur auf einer Spule aufgewickelt sind. Bei der Herstellung des Leiters 9 werden alle Verseilelemente vor dem Verseilpunkt aufgefächert und durch mindestens eine Verteilerscheibe geführt. Das zentral liegende Grundelement 5 ist gegebenenfalls separat auf einer eigenen Spule aufgewickelt.Instead of in Fig. 1 purely schematically illustrated arrangement can be used in modern technology and coils in which the basic elements 4 and 5, as well as the filling elements 6 are each wound only on a spool. In the production of the conductor 9, all stranding elements are fanned out before the stranding point and passed through at least one distributor disc. The centrally located base element 5 is optionally wound separately on a separate coil.

Der Leiter 9 besteht gemäß Fig. 2 in konzentrischem Aufbau aus einem zentral liegenden Grundelement 5 und sechs Grundelementen 4. Die sechs Grundelemente 4 sind um das zentral liegende Grundelemente 5 herumverseilt. Die sechs Füllelemente 6 liegen in den Außenzwickeln zwischen den sechs Grundelementen 4. Ihr Querschnitt bzw. Durchmesser ist so bemessen, daß sie nicht über den gestrichelt eingezeichneten Umkreis 10 des Leiters 9 hinausragen. Gemäß der zeichnerischen Darstellung in Fig. 2 haben die Füllelemente 6 den maximal zulässigen Querschnitt. Sie können aber zur Anpassung des Leiterwiderstandes des Leiters 9 an vorgegebene Werte auch einen kleineren Querschnitt haben.The conductor 9 is made according to Fig. 2 in a concentric structure of a centrally located base element 5 and six basic elements 4. The six basic elements 4 are wound around the centrally located base elements 5 around. The six filling elements 6 are in the Außenenzwickeln between the six basic elements 4. Their cross-section or diameter is dimensioned so that they do not protrude beyond the dashed line perimeter 10 of the conductor 9. According to the graphic representation in Fig. 2 the filling elements 6 have the maximum permissible cross section. However, they can also have a smaller cross section for adapting the conductor resistance of the conductor 9 to given values.

Der Aufbau des Leiters 9 wird im folgenden für zwei Beispiele angegeben.The structure of the conductor 9 will be given below for two examples.

Beispiel 1example 1

In einer Datenleitung für die industrielle Automatisierungstechnik im Schiffbau oder in Bahnleitungen haben die sieben Grundelemente 4 jeweils einen Durchmesser von 0,32 mm. Der Durchmesser der sechs Füllelemente 6 liegt jeweils zwischen 0,09 mm und 0,11 mm. Der Gesamtquerschnitt des Leiters 9 liegt zwischen 0,06 mm2 und 0,62 mm2.In a data line for industrial automation technology in shipbuilding or in railway lines, the seven basic elements 4 each have a diameter of 0.32 mm. The diameter of the six filling elements 6 is in each case between 0.09 mm and 0.11 mm. The total cross section of the conductor 9 is between 0.06 mm 2 and 0.62 mm 2 .

Beispiel 2Example 2

In einer Datenleitung für die Medizintechnik oder die Mikro-Automatisierungstechnik haben die sieben Grundelemente 4 jeweils einen Durchmesser von 0,1 mm. Der Durchmesser der sechs Füllelemente 6 liegt jeweils zwischen 0,03 mm und 0,035 mm. Der Gesamtquerschnitt des Leiters 9 liegt zwischen 0,06 mm2 und 0,061 mm2.In a data line for medical technology or micro-automation technology, the seven basic elements 4 each have a diameter of 0.1 mm. The diameter of the six filling elements 6 is in each case between 0.03 mm and 0.035 mm. The total cross section of the conductor 9 is between 0.06 mm 2 and 0.061 mm 2 .

Claims (7)

  1. Flexible electrical conductor (9), comprising a plurality of metallic basis elements (4,5) which are stranded together and several metallic filling elements (6) which are positioned in the interstices between the basic elements lying at the circumference of the same and within the periphery (10) of the conductor and having a smaller diameter than the basis elements, characterized in
    - that basis elements (4,5) and filling elements (6) are solid wires,
    - that seven basis elements (4,5) with a diameter of 0,1 mm to 0,32 mm are arranged concentrically such, that six basis elements (4) six are stranded around a central basis elements (5),
    - that in the outer interstices of the six basis elements (4) filling elements (6) are positioned having a diameter between 0,03 mm and 0,11 mm whichly without further treatment within the periphery (10) of the conductor (9), and
    - that the cross section of the complete conductor (9) with basis elements (4,5) and filling elements (6) is between 0,06 mm2 and 0,62 mm2.
  2. Conductor according to claim 1, characterized in that the basic element (5) lying in the center is a steel wire, which preferably is tinned.
  3. Conductor according to claim 1, characterized in that the basic element (5) lying in the center is a wire made from stainless steel.
  4. Conductor according to claim 1, characterized in that the basic element (5) lying in the center is a copper plated steel wire.
  5. Conductor according to one of the claims 1 to 4, characterized in that the basic elements (4,5) have a diameterof 0,1 mm, the filling elements (6) have a diameter between 0,03 mm and 0,035 mm and the conductor (9) has a cross-section between 0,06 mm2 and 0,061 mm2.
  6. Conductor according to one of the claims 1 to 4, characterized in that the basic elements (4,5) have a diameter of 0,32 mm, the filling elements (6) have a diameter between 0,09 mm and 0,11 mm and the conductor (9) has a cross-section between 0,6 mm2 and 0,62 mm2.
  7. Conductor according to one of the claims 1 to 6, characterized in that the length of lay of the basic elements and the filling elements which are stranded with each other lies between 9 x D and 18 x D, with D being the diameter of the conductor (9).
EP08290380A 2008-04-18 2008-04-18 Flexible electrical conductor Not-in-force EP2117011B1 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
AT08290380T ATE493741T1 (en) 2008-04-18 2008-04-18 FLEXIBLE ELECTRICAL CONDUCTOR
EP08290380A EP2117011B1 (en) 2008-04-18 2008-04-18 Flexible electrical conductor
DE502008002135T DE502008002135D1 (en) 2008-04-18 2008-04-18 Flexible electrical conductor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP08290380A EP2117011B1 (en) 2008-04-18 2008-04-18 Flexible electrical conductor

Publications (2)

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EP2117011A1 EP2117011A1 (en) 2009-11-11
EP2117011B1 true EP2117011B1 (en) 2010-12-29

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US9053841B2 (en) 2007-11-13 2015-06-09 Southwire Company, Llc Traceable and theft deterrent reclaimable product
US9040825B2 (en) 2007-11-13 2015-05-26 Southwire Company, Llc Conductors and metal-covered cable with coded information and method of applying coded information
US9818508B2 (en) 2007-11-13 2017-11-14 Southwire Company, Llc Traceable and theft deterrent reclaimable product
US10102461B2 (en) 2007-11-13 2018-10-16 Southwire Company, Llc Traceable and theft deterrent reclaimable product

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