DE349976C - Arrangement for securing cables with a top layer of low voltage lines against each other - Google Patents

Arrangement for securing cables with a top layer of low voltage lines against each other

Info

Publication number
DE349976C
DE349976C DE1921349976D DE349976DD DE349976C DE 349976 C DE349976 C DE 349976C DE 1921349976 D DE1921349976 D DE 1921349976D DE 349976D D DE349976D D DE 349976DD DE 349976 C DE349976 C DE 349976C
Authority
DE
Germany
Prior art keywords
top layer
arrangement
low voltage
insulation
securing 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
Application number
DE1921349976D
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.)
Siemens Schuckertwerke AG
Original Assignee
Siemens Schuckertwerke 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 Siemens Schuckertwerke AG filed Critical Siemens Schuckertwerke AG
Application granted granted Critical
Publication of DE349976C publication Critical patent/DE349976C/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
    • H02H7/22—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for distribution gear, e.g. bus-bar systems; for switching devices
    • H02H7/226—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for distribution gear, e.g. bus-bar systems; for switching devices for wires or cables, e.g. heating wires

Landscapes

  • Insulated Conductors (AREA)

Description

Anordnung zur Sicherung von Kabeln mit einer Decklage von Leitungen geringer Spannung gegeneinander. Es ist bekannt, Kabel dadurch zu sichern, daß die Hauptader des Kabels mit einer Decklage von schwach gegeneinander isolierten Drähten versehen wird, die gegeneinander geringe Spannungsdifferenz haben. Ist ein Fehler im Kabel in der Entstehung begriffen, so schlägt alsbald die schwache Isolierung zwischen zwei benachbartenDrähtenderDecklage durch, und zwischen den Kontrolldrähten. erfolgt Stromübergang, wodurch die Auslösevorrichtungen der Streckenschalter des Kabels betätigt werden. Ist beim Auftreten eines Fehlers oder bei scharfem Biegen während der Verlegung oder aus ähnlichen Ursachen einmal eine Zerstörung der Isolierung der Decklagendrähte erfolgt, so ist, ehe die Decklage nicht wieder durch neue Isolierung in Ordnung gebracht ist, die Sicherheitsvorrichtung außer Wirksamkeit, auch wenn die Hauptisolierung des Kabels selber ganz gesund geblieben ist und deshalb das Kabel an sich wieder in Betrieb genommen werden könnte. Eine Wiederherstellung der Decklage ist aber immer zeitraubend und schwierig.Arrangement for securing cables with a top layer of lines low tension against each other. It is known to secure cables in that the Main core of the cable with a top layer of weakly insulated wires is provided, which have a small voltage difference against each other. Is a mistake In the process of being formed in the cable, the weak insulation immediately strikes between two adjacent wires of the cover layer, and between the control wires. current transfer takes place, whereby the release devices of the section switch of the Cables are operated. Is when a fault occurs or when there is a sharp bend During installation or for similar reasons, the insulation is destroyed the top layer wires takes place, before the top layer is not replaced by new insulation is in order, the safety device is ineffective, even if the main insulation of the cable itself has remained quite healthy and therefore that Cable itself could be put back into operation. A restoration of the However, the top layer is always time-consuming and difficult.

Nach der Erfindung wird an derartigen Kabeln mit Decklage eine Anordnung getroffen, die es ermöglicht, das Kabel, falls seine Hauptisolierung gesund geblieben ist, sofort wieder in Betrieb zu nehmen. Die Erfindung besteht darin, daß die beiden Gruppen der Decklagendrähte, die durch das Durchbrechen der Isolierung zwar elektrisch leitend verbunden, sonst aber ganz unbeschädigt sind, als einfacher Kontrolleiter für die Hauptader des Kabels benutzt werden, der an seinen beiden freien Enden mit der Hauptader in bekannter Weise, z. B. nach der Patentschrift 290735, so in Verbindung gebracht ist, daß beim Auftreten einer Störung die Auslösevorrichtungen für die Streckenschalter des Kabels betätigt werden.According to the invention, an arrangement is made on such cables with a cover layer taken that allows the cable in case its main insulation remained healthy is to be put back into operation immediately. The invention consists in that the two Groups of top layer wires that break through the insulation are electrical conductively connected, but otherwise completely undamaged, as a simple control tab can be used for the main core of the cable, which has at its two free ends the main artery in a known manner, e.g. B. according to the patent 290735, so in connection is brought that when a fault occurs, the release devices for the Section switch of the cable must be operated.

Nach der Erfindung kann z. B. auch derselbe Transformator, der zum Abschalten des Kabels nach Durchbruch der schwachen Isolierung zwischen den Nachbardrähten der Decklage diente, zum Abschalten des Kabels herangezogen werden, wenn die Drähte der Decklage gemeinsam als einfache Kontrolleitung nach der Erfindung benutzt werden.According to the invention, for. B. also the same transformer that is used for Disconnection of the cable after the weak insulation between the neighboring wires has broken through the top layer was used to turn off the cable when the wires the top layer can be used together as a simple control line according to the invention.

Claims (1)

PATENTANSPRUCH: Anordnung zur Sicherung von Kabeln, bei denen die Hauptader mit einer Decklage von Leitungen versehen ist, deren Nachbardrähte schwach voneinander isoliert sind und eine geringe Spannungsdifferenz gegeneinander haben, und deren Isolierung beim Auftreten eines Fehlers zerstört wird, dadurch gekennzeichnet, daß die Decklagendrähte, wenn ihre Isolation durchgebrochen ist, sämtlich parallel als einfacher Kontrolleiter verwendet werden, der mit der Hauptader in an sich bekannter Weise in Verbindung gebracht wird, so daß bei erneuten Störungsfällen die Auslösevorrichtungen der Kabelschalter betätigt werden. PATENT CLAIM: Arrangement for securing cables in which the main core is provided with a top layer of lines, the neighboring wires of which are weakly insulated from one another and have a low voltage difference from one another, and whose insulation is destroyed when a fault occurs, characterized in that the top layer wires, if their insulation has broken, all are used in parallel as a simple control conductor, which is connected to the main wire in a manner known per se, so that the tripping devices of the cable switches are actuated in the event of renewed malfunctions.
DE1921349976D 1921-04-09 1921-04-09 Arrangement for securing cables with a top layer of low voltage lines against each other Expired DE349976C (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE349976T 1921-04-09

Publications (1)

Publication Number Publication Date
DE349976C true DE349976C (en) 1922-03-11

Family

ID=6259153

Family Applications (1)

Application Number Title Priority Date Filing Date
DE1921349976D Expired DE349976C (en) 1921-04-09 1921-04-09 Arrangement for securing cables with a top layer of low voltage lines against each other

Country Status (1)

Country Link
DE (1) DE349976C (en)

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