DE749400C - Multi-conductor tubular wire, especially for higher temperatures - Google Patents

Multi-conductor tubular wire, especially for higher temperatures

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Publication number
DE749400C
DE749400C DEK151556D DEK0151556D DE749400C DE 749400 C DE749400 C DE 749400C DE K151556 D DEK151556 D DE K151556D DE K0151556 D DEK0151556 D DE K0151556D DE 749400 C DE749400 C DE 749400C
Authority
DE
Germany
Prior art keywords
higher temperatures
insulating material
heat
conductor
resistant insulating
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
DEK151556D
Other languages
German (de)
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 filed Critical
Priority to DEK151556D priority Critical patent/DE749400C/en
Application granted granted Critical
Publication of DE749400C publication Critical patent/DE749400C/en
Expired legal-status Critical Current

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Classifications

    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01BCABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B3/00Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties
    • H01B3/02Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of inorganic substances
    • H01B3/08Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of inorganic substances quartz; glass; glass wool; slag wool; vitreous enamels
    • H01B3/082Wires with glass or glass wool

Description

Mehrleiterrohrdraht, insbesondere für höhere Temperaturen Es ist üblich, die Stromzuleitungen zu elektrischen Geräten, die bei höheren Temperaturen arbeiten, als sog. Perueiter auszubilden. Die Zwei- oder Mehrzuleitungsdrähte eines Geräts hat man dabei nicht nur unabhängig nebeneinander angeordnet, sondern man hat sie auch miteinander verseilt und so in eine gemeinsame Schutzhülle aus einem ausreichend festen Dielektrikum eingezogen, über dem dann eine Metallhülle angebracht worden ist. Es hat sich herausgestellt, daß derartige Mehrleitergebilde oft keinen ausreichenden Schutz gegen Nebenschlüsse zwischen den einzelnen Adern durch Eindringen von Feuchtigkeit, namentlich an den Anschlußdosen o. dgl., bieten.Multi-conductor tubular wire, especially for higher temperatures It is common to the power lines to electrical devices that work at higher temperatures, to train as so-called Perueiter. The two or more lead wires of a device You not only have them arranged independently next to each other, you have them also stranded together and thus in a common protective cover from one sufficient solid dielectric was drawn in, over which a metal shell was then attached is. It has been found that such multi-conductor structures are often insufficient Protection against shunts between the individual cores due to the ingress of moisture, namely at the junction boxes or the like., Offer.

Ein solcher Schutz läßt sich auch dann nicht mit Sicherheit erreichen, wenn in gleichfalls bekannter Weise die Einzeldrähte des Mehrfachleiters durch mit mehreren Bohrungen versehene Perlen gezogen werden, die auf die Drähte abwechselnd mit nachgiebigen-Zwischenscheiben aufgereiht sind, wonach dann wiederum eine isolierende Schlauchhülle übergezogen. ist. Selbst das Hindurchziehen der Leiter mit aufgereihten Perlen durch eine nach Erhärten einen dünnen Überzug bildende Isolierstofflösung vor Einbringen in die Schlauchhülle schafft keine völlige Sicherheit gegen das Entstehen von Feuchtigkeitsbrücken.Such protection cannot be achieved with certainty even if if in a likewise known manner the individual wires of the multiple conductor through with Several bores provided with holes are drawn, which alternate on the wires are lined up with flexible washers, after which in turn an insulating Hose cover pulled over. is. Even pulling the ladder through with lined up Pearls through an insulating material solution that forms a thin coating after it has hardened before it is introduced into the hose casing, there is no complete security against the formation of moisture bridges.

Diese Sicherheit wird gemäß der Erfindung dadurch erzielt, daß die einzelnen als Perlleiter ausgebildeten Leitungsdrähte zunächst mit einer Hülle aus wärmefestem Isolierstoff bedeckt sind, die auch in die Lücken zwischen den Perlen eindringt, daß diese Einzelleiter miteinander verseht sind und daß darüber ein gemeinsamer Mantel aus dem wärmefesten Isolierstoff aufgebracht ist, der von einem Metallmantel umschlossen ist. Die Hülle und der Mantel aus wärmefestem Isolierstoff besteht z. B. aus Polyisobutylen mit Asbest- oder Specksteinpulver-. beimischungen. Die Zwischenräume zwischen den einzelnen Perlen werden zweckmäßig ausgefüllt, um auf diese Weise eine Aderisolation gleichmäßiger Dicke etwa vom Durchmesser der Perlen zu erhalten. Diese Hülle umschließt also die gesamte vorhandene Isolation, so daß in den Anschlußdosen eine nachträgliche Verletzung der Isolation nicht mehr möglich ist.This security is achieved according to the invention in that the individual lead wires designed as pearl conductors initially with a sheath Heat-resistant insulating material are covered, which is also in the gaps between the beads it penetrates that these individual conductors are connected to one another and that a common one above them Jacket from the heat-resistant insulating material is applied by a metal jacket is enclosed. The shell and the jacket made of heat-resistant insulating material consists, for. B. made of polyisobutylene with asbestos or soapstone powder. admixtures. The spaces in between between the individual pearls are expediently filled in to create a To obtain core insulation of uniform thickness approximately equal to the diameter of the pearls. These Sheath therefore encloses the entire existing insulation, so that in the junction boxes a subsequent violation of the insulation is no longer possible.

Das Gebilde kann auch als Heizkabel mit Vorteil Anwendung finden. Die von den Perlleitern umschlossenen Leitungsdrähte werden in diesem Falle aus einem feuerfesten Metall hohen Widerstandes hergestellt werden, z. B. aus Chromnickel. An Stelle des gefalzten Metallmantels kann in diesem Falle auch ein nahtloser Metällmantel o: ,dgl-. treten.The structure can also be used with advantage as a heating cable. The lead wires enclosed by the pearl conductors are cut off in this case a high resistance refractory metal, e.g. B. the end Chrome nickel. Instead of the folded metal jacket, a seamless metal jacket o:, like-. step.

Claims (1)

PATENTANSPRUCH: ivlehrleiterrohrdraht, insbesondere für höhere Temperaturen, mit die Leiter abstützenden Perlen, dadurch gekennzeichnet, daB jede einzelne Leitungsader für -"sich in bekannter Weise als Perlleiter ausgebildet und mit einer dichten, auch die Zwischenräume der Perlen ausfüllenden Hülle aus wärmefestem Isolierstoff, z. B. aus Polyisobutylen mit Asbest- oder Specksteinpulver-Beimischungen, bedeckt ist, daB die in dieser Weise gestalteten Einzelleitungen miteinander verseilt und danach mit einem gemeinsamen Mantel aus diesem wärmefesten Isolierstoff bedeckt sind, der von einem Metallmantel umschlossen ist. Zur Abgrenzung des Anmeldungsgegenstandes vom Stand der Technik sind im Erteilungsverfahren folgende Druckschriften in Betracht gezogen worden: britische Patentschrift .... Nr. 6 817 (19i3) französische - . . . . . . . . . Nr. 748 0g4.PATENT CLAIM: ivlehrleiter tube wire, especially for higher temperatures, with beads supporting the ladder, characterized in that each individual line wire for - "is designed in a known manner as a pearl conductor and is covered with a tight sheath made of heat-resistant insulating material, e.g. B. made of polyisobutylene with asbestos or soapstone powder admixtures, that the individual lines designed in this way are stranded together and then covered with a common jacket made of this heat-resistant insulating material, which is enclosed by a metal jacket The following documents were considered in the grant proceedings: British patent specification .... No. 6 817 (19i3) French -......... No. 748 0g4.
DEK151556D 1938-08-12 1938-08-12 Multi-conductor tubular wire, especially for higher temperatures Expired DE749400C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEK151556D DE749400C (en) 1938-08-12 1938-08-12 Multi-conductor tubular wire, especially for higher temperatures

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEK151556D DE749400C (en) 1938-08-12 1938-08-12 Multi-conductor tubular wire, especially for higher temperatures

Publications (1)

Publication Number Publication Date
DE749400C true DE749400C (en) 1944-11-22

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
DEK151556D Expired DE749400C (en) 1938-08-12 1938-08-12 Multi-conductor tubular wire, especially for higher temperatures

Country Status (1)

Country Link
DE (1) DE749400C (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB191306817A (en) * 1913-03-19 1914-03-19 Ardeshir Temulji Mirza Improvements in or relating to Electric Cables.
FR748054A (en) * 1932-01-01 1933-06-28 Improvements to multi-wire insulated electrical conductors

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB191306817A (en) * 1913-03-19 1914-03-19 Ardeshir Temulji Mirza Improvements in or relating to Electric Cables.
FR748054A (en) * 1932-01-01 1933-06-28 Improvements to multi-wire insulated electrical conductors

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