DE611333C - Telecommunication cable protected against the effects of heavy current - Google Patents

Telecommunication cable protected against the effects of heavy current

Info

Publication number
DE611333C
DE611333C DEF76264D DEF0076264D DE611333C DE 611333 C DE611333 C DE 611333C DE F76264 D DEF76264 D DE F76264D DE F0076264 D DEF0076264 D DE F0076264D DE 611333 C DE611333 C DE 611333C
Authority
DE
Germany
Prior art keywords
cable
protected against
telecommunication cable
effects
heavy current
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
Application number
DEF76264D
Other languages
German (de)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Felten and Guilleaume Carlswerk AG
Original Assignee
Felten and Guilleaume Carlswerk AG
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
Application filed by Felten and Guilleaume Carlswerk AG filed Critical Felten and Guilleaume Carlswerk AG
Priority to DEF76264D priority Critical patent/DE611333C/en
Application granted granted Critical
Publication of DE611333C publication Critical patent/DE611333C/en
Expired legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01BCABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B11/00Communication cables or conductors

Landscapes

  • Ropes Or Cables (AREA)

Description

Gegen Starkstrombeeinflussung geschütztes Fernmeldekabel Bekanntlich umgibt man Fernmeldekabel, um sie vor der Beeinflussung durch Starkstromstörungen zu schützen, mit einer Bewehrung aus magnetischem Material möglichst hoher Permeabilität. Die Hülle besteht im allgemeinen aus einer Band- oder Drahtbewicklung, die über dem Bleimantel des Kabels aufgebracht 'ist. Zur Herstellung einer solchen Bewehrung empfiehlt :es sich, Drähte oder Bänder aus weichem ausgeglühtem Eisen oder aus Eisenlegierungen zu verwenden; die sich .durch besonders große Permeabilität auszeichnen.Telecommunication cable protected against the effects of heavy current is well known one surrounds telecommunication cables in order to protect them from being influenced by heavy current disturbances to protect, with a reinforcement made of magnetic material, the highest possible permeability. The sheath generally consists of a tape or wire wrapping that extends over is applied to the lead sheath of the cable. To produce such a reinforcement Recommended: it is advisable to use wires or strips made of soft annealed iron or iron alloys to use; which are characterized by particularly high permeability.

Ein Nachteil dieser ferromagnetischen Materialien besteht darin, daß ihre magnetischen Eigenschaften gegen mechanische Beansprucliungen außerordentlich empfindlich sind. Dies ist von besonderer Bedeutung, wenn eine Bewehrung der oben angegebenen Art um ein Fernmeldekabel gelegt werden soll, da durch die Biegungen während des Aufbringens der Bewehrung :eine Verschlechterung der magnetischen Eigenschaften des Band- oder Drahtmaterials .eintritt.A disadvantage of these ferromagnetic materials is that their magnetic properties against mechanical stresses are extraordinary are sensitive. This is of particular concern when reinforcing the above specified type to be laid around a telecommunication cable, because of the bends during the application of the reinforcement: a deterioration in the magnetic properties of the tape or wire material.

Gemäß der Erfindung wird dieser Nachteil dadurch weitgehend vermindert, daß man das Band oder den Draht nicht in kreisrunden Windungen auf das Kabel aufwickelt, sondern in Windungen, die Polygonform haben. Das Bewehrungsmaterial wird dabei nicht fortlaufend gebogen, sondern nur in gleichen Abständen geknickt, so daß auch nur an diesen Stellen eine Verschlechterung der magnetischen- Eigenschaften eintreten kann. So wurde beispielsweise gefunden, daß die Aufbringung des magnetischen Bandes in Form von Dreiecken eine um 25 % höhere Induktivität ergibt als eine entsprechende kreisrunde Bewicklung des Kabels.According to the invention, this disadvantage is largely reduced by that the tape or wire is not wound onto the cable in circular turns, but in turns that have a polygonal shape. The reinforcement material is not continuously bent, but only kinked at equal intervals, so that only a deterioration of the magnetic properties occur at these points can. For example, it has been found that the application of the magnetic tape in the form of triangles results in a 25% higher inductance than a corresponding one circular wrapping of the cable.

Bei der Herstellung einer solchen Kabelbewehrung kann man in der Weise vorgehen, daß man dem Fernmeldekabel, das man zu bewehren hat, einen vieleckigen Querschnitt gibt, so daß sich die Bänder oder Drähte während des AufwickeIns ohne weiteres in Form von vieleckigen Windungen um das Kabel legen. Hierbei ist es keineswegs notwendig, daß das Kabel selbst von vornherein mit einem vieleckigen Querschnitt ausgestattet ist; man kann vielmehr ein ursprünglich rundes Kabel vor dem Aufbringen der Bewehrung mit Hilfe von widerstandsfähiger Materialien derart aufpolstern, daß ein vieleckiger Querschnitt entsteht, der seine Form auch bei den Beanspruchungen; die mit der Herstellung der Bewehrung verbunden, sind, beibehält. Schließlich kann der Gegenstand der Erfindung bei einem Rundkabel in der Weise angewendet werden, daß man das Band oder den Draht vorformt. Dies kann sä geschehen, daß man das Material in der Bewehrungsmaschine unmittelbar vor dem Auflaufen auf das Kabel in gleichen Abständen mit Knickurigen versieht.In the manufacture of such a cable armor one can do in the way proceed so that the telecommunication cable that has to be reinforced is a polygonal one Cross-section so that the tapes or wires can be stretched without being wound during winding Put another in the form of polygonal turns around the cable. It is by no means here necessary that the cable itself from the outset with a polygonal cross-section Is provided; you can rather use an originally round cable before applying it upholster the reinforcement with the help of more resistant materials in such a way that a polygonal cross-section is created, which also maintains its shape with the loads; associated with the manufacture of the reinforcement. Finally can the subject matter of the invention can be applied to a round cable in such a way that that one preforms the tape or the wire. This can be done by using the material in the reinforcement machine immediately before running onto the cable in the same Provides gaps with kinked edges.

Claims (1)

PATENTANSPRUCH: Gegen Starkstrombeeinflussung geschütztes Fernmeldekabel, das mit einer Draht- öder Bandarmierung aus hochwertigen ferromagnetischen Stoffen umgeben ist, deren =gnetische Eigenschaften gegen mechanische Beanspruchungen sehr emfindlich sind, dadurch gekennzeichnet, daß die Drähte oder Bänder aus ferroma.gnetischem Material das Kabel in Windungen umschließen, welche die Form von Vielecken haben, wobei die Seitenlänge des Vielecks i o xnm nicht unterschreitet.PATENT CLAIM: Telecommunication cable protected against the influence of high currents, that with a wire or band armoring made of high-quality ferromagnetic materials is surrounded, whose = gnetische properties against mechanical stresses very are sensitive, characterized in that the wires or bands are made of ferroma.gnetischem Material enclose the cable in turns, which have the shape of polygons, where the side length of the polygon is not less than i o xnm.
DEF76264D 1933-09-22 1933-09-22 Telecommunication cable protected against the effects of heavy current Expired DE611333C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEF76264D DE611333C (en) 1933-09-22 1933-09-22 Telecommunication cable protected against the effects of heavy current

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEF76264D DE611333C (en) 1933-09-22 1933-09-22 Telecommunication cable protected against the effects of heavy current

Publications (1)

Publication Number Publication Date
DE611333C true DE611333C (en) 1935-03-26

Family

ID=7112619

Family Applications (1)

Application Number Title Priority Date Filing Date
DEF76264D Expired DE611333C (en) 1933-09-22 1933-09-22 Telecommunication cable protected against the effects of heavy current

Country Status (1)

Country Link
DE (1) DE611333C (en)

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