DE749400C - Multi-conductor tubular wire, especially for higher temperatures - Google Patents
Multi-conductor tubular wire, especially for higher temperaturesInfo
- 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
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B3/00—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties
- H01B3/02—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of inorganic substances
- H01B3/08—Insulators 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
- H01B3/082—Wires with glass or glass wool
Landscapes
- Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Insulated Conductors (AREA)
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)
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
ID=7252406
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)
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 |
-
1938
- 1938-08-12 DE DEK151556D patent/DE749400C/en not_active Expired
Patent Citations (2)
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 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
DE749400C (en) | Multi-conductor tubular wire, especially for higher temperatures | |
DE895798C (en) | Flexible electrical heating cable | |
DE591389C (en) | Insulated cable with metal jacket | |
DE615086C (en) | Flexible high frequency cable | |
DE732089C (en) | High frequency cable with air space insulation | |
DE420067C (en) | Three-phase cable with stranded single-core cables | |
DE716111C (en) | Shielded electrical cavity line | |
DE713637C (en) | Telephone cable with a helically arranged support structure made of non-magnetic material | |
DE534339C (en) | Protection device for shielding electromagnetic waves emanating from the ignition circuit of an explosion engine | |
DE554581C (en) | Litz-shaped current conductor for cables with mechanically protected insulated auxiliary conductors attached inside | |
DE902864C (en) | Metal-sheathed concentric telecommunication cables, in particular high-frequency cables | |
DE722207C (en) | Self-supporting aerial cable for telecommunication purposes | |
DE612689C (en) | Heavy-duty power cable | |
DE1196738B (en) | Electric roof rack house connection | |
DE462599C (en) | Electric waveguide | |
DE899969C (en) | End insulation for electrical installation material | |
DE664897C (en) | Self-supporting telecommunication air cable with tensile armor | |
DE757699C (en) | Process for the production of multi-core lines or cables with non-flammable insulation | |
DE704972C (en) | Method for producing electrical cable replicas | |
DE528683C (en) | Electric cable for underground installation | |
AT157898B (en) | High frequency cable with several concentric lines. | |
DE755333C (en) | Airspace-insulated telecommunication cable with increased operational safety | |
AT143234B (en) | Telecommunication cable with heat-sensitive dielectric, especially for operation with very high frequencies. | |
DE1648198B1 (en) | Flexible resistance thermometer | |
DE886777C (en) | Electrical isolated single or multi-core cable |