DE415946C - Three-phase high voltage cable - Google Patents
Three-phase high voltage cableInfo
- Publication number
- DE415946C DE415946C DES55358D DES0055358D DE415946C DE 415946 C DE415946 C DE 415946C DE S55358 D DES55358 D DE S55358D DE S0055358 D DES0055358 D DE S0055358D DE 415946 C DE415946 C DE 415946C
- Authority
- DE
- Germany
- Prior art keywords
- voltage cable
- phase high
- high voltage
- individual cables
- cable
- 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
- H01B9/00—Power cables
- H01B9/02—Power cables with screens or conductive layers, e.g. for avoiding large potential gradients
- H01B9/027—Power cables with screens or conductive layers, e.g. for avoiding large potential gradients composed of semi-conducting layers
Landscapes
- Insulated Conductors (AREA)
Description
Wenn mehrere Einleiterkabel zu einem Drehstromkabel verseilt werden, so entstehen zwischen den isolierenden Hüllen der Einzelkabel untereinander und zwischen der Isolierung der Kabel und dem Bleimantel oder deren gemeinsamer Hülle Zwickel, die man bisher mit Isolierstoffen ausgefüllt hat. Um zu verhindern, daß in diesen Zwickeln Hohlräume entstehen, die Glimmerscheinungen hervorrufen könnten, hat man das Dielektrikum der Einzelkabel mit leitendem Überzug versehen, so daß der Isolierstoff in den Zwickeln vollständig von leitendem Material umgeben und damit praktisch feldfrei gemacht war.If several single-core cables are stranded to form a three-phase cable, the result is between the insulating sheaths of the individual cables and between the insulation the cable and the lead sheath or their common sheath gusset that one has hitherto filled with insulating material. To prevent voids in these gussets arise that could cause glowing phenomena, the dielectric of the individual cables has been provided with a conductive coating, so that the insulating material in the gussets is completely surrounded by conductive material and was thus made practically field-free.
Die Erfindung hat eine Anordnung zum Gegenstand, bei welcher das Füllmaterial in den Zwickeln auf andere Weise feldfrei gemacht ist. Die Erfindung besteht darin, daß das Füllmaterial aus einem Stoff von nur geringer, aber für die elektrischen Kraftlinien als Kurzschluß wirkender Leitfähigkeit besteht. Dieser Stoff muß elastisch genug sein, um beim Biegen des Kabels sich dicht an die Oberfläche der Einzelkabel und an dieThe invention relates to an arrangement in which the filler material in the gusset is made field-free in some other way. The invention consists in that the filling material of a substance of only minor, but for the electric lines of force there is conductivity acting as a short circuit. This fabric must be elastic enough to be close to the surface of the individual cable and to the when bending the cable
a5 Innenwandung des Bleimantels anzuschmiegen. Man kann beispielsweise mit Graphit durchsetztes Isolationsmaterial zur Füllung der Zwickel verwenden.a5 to fit the inner wall of the lead jacket. For example, insulation material interspersed with graphite can be used to fill the gusset.
In den Abb. ι und 2 sind zwei Beispiele eines solchen Kabels dargestellt. Die Einzelkabel α sind von einem Bleimantel b gegebenenfalls unter Zwischenfügung einer Isolierhülle c umgeben. Die Zwickel d sind gemäß der Erfindung mit einem zweckmäßig elastischen Füllmaterial gefüllt, das eine, wenn auch nur geringe Leitfähigkeit besitzt.In Figs. Ι and 2 two examples of such a cable are shown. The individual cables α are surrounded by a lead sheath b, optionally with an insulating sheath c between them . According to the invention, the gussets d are filled with an expediently elastic filling material which has a conductivity, even if it is only low.
Vorteilhaft bei der beschriebenen Anordnung ist, daß die Einzelkabel nicht mehr mit einem besonderen leitenden Überzug versehen sein müssen, und daß dennoch vollkommene Sicherheit gegen Auftreten von Glimmentladungen gegeben ist.The advantage of the arrangement described is that the individual cables are no longer with must be provided with a special conductive coating, and that still perfect Security against the occurrence of glow discharges is given.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DES55358D DE415946C (en) | Three-phase high voltage cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DES55358D DE415946C (en) | Three-phase high voltage cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE415946C true DE415946C (en) | 1925-07-07 |
Family
ID=7490409
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DES55358D Expired DE415946C (en) | Three-phase high voltage cable |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE415946C (en) |
-
0
- DE DES55358D patent/DE415946C/en not_active Expired
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