DE583980C - High voltage cable with soaked paper insulation - Google Patents
High voltage cable with soaked paper insulationInfo
- Publication number
- DE583980C DE583980C DEW82272D DEW0082272D DE583980C DE 583980 C DE583980 C DE 583980C DE W82272 D DEW82272 D DE W82272D DE W0082272 D DEW0082272 D DE W0082272D DE 583980 C DE583980 C DE 583980C
- Authority
- DE
- Germany
- Prior art keywords
- paper
- high voltage
- voltage cable
- layers
- conductive
- 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
- Insulating Bodies (AREA)
Description
In dem Hauptpatent ist ein Hochspannungskabel mit getränkter. Papierisolation und elektrisch leitender Auflage auf dem Leiter beschrieben, bei welchem diese Auflage aus einem porösen und saugfähigen Stoff besteht, welcher für Tränkmasse durchlässig ist. Die Aufnahmefähigkeit dieses Stoffes für Tränkmasse ist die wesentliche Bedingung, um unmittelbar auf dem Leiter eine elektrisch leitende Schicht zu erhalten, welche Tränkmasse abgeben kann, ohne daß die sich dabei in ihr bildenden Hohlräume Glimm- oder Strahlungserscheinungen zeigen können. Als Mittel, solche Schichten zu erzeugen, ist beispielsweise ein Papier angegeben, welchem schon bei der Herstellung im Brei leitende Stoffe, wie Metalloxyde, Metallpulver, Graphit o. dgl., beigemengt wurden. Ein solches Papier ist sowohl saugfähig als auch für Tränkmasse durchlässig und ferner hinreichend leitfähig, um Hohlräume, welche in aus ihnen hergestellten Schichten entstehen, strahlungsfrei zu machen.In the main patent is a high-voltage cable with impregnated. Paper insulation and described electrically conductive support on the conductor, in which this support consists of a porous and absorbent material, which is permeable to impregnating mass. The absorption capacity of this substance for impregnating mass is the essential condition in order to obtain an electrically conductive layer directly on the conductor, which impregnation compound can give off without the cavities forming in it being able to show glowing or radiation phenomena. as A means of producing such layers is, for example, given a paper, which Conductive substances, such as metal oxides, metal powder, graphite, even during manufacture in the pulp o. The like., were added. Such paper is both absorbent and for Impregnating mass permeable and also sufficiently conductive to avoid cavities which are in layers produced from them are created to render them radiation-free.
Erfindungsgemäß wird nun die Schicht aufAccording to the invention, the layer is now on
as dem Leiter aus mehreren Lagen Papierbändern in der Weise aufgesponnen, daß die unteren Lagen jede für sich in offener Wicklung mit Zwischenräumen liegen, die Ränder des Bandes einer Lage sich also nicht überdecken oder berühren. Nur die oberste Lage wird in geschlossenen oder überdeckten Schraubenwindungen aufgesponnen.As the conductor spun from several layers of paper tapes in such a way that the The lower layers are each in an open winding with spaces in between, the edges of the tape of a layer do not overlap or touch. Only the top layer is spun in closed or covered screw turns.
Die Abbildung zeigt eine Ausführung der Erfindung. 1 ist der Leiter, auf welchem die erste Lage 2 aus leitendem Papier so aufgesponnen ist, daß zwischen den einzelnen Windungen ein schraubenförmiger Hohlraum vorhanden ist; ebenso sind die nächsten Lagen, beispielsweise zwei Lagen 3 und 4, auf gesponnen, jedoch so, daß die Hohlräume gegeneinander versetzt sind. Darüber liegt die letzte Lage leitendes Papier 5, welche jedoch dicht aneinander schließend odef mit geringer Überlappung aufgesponnen ist. 6 ist die Kabelisolation "aus- getränktem Papier, 7 der Bleimantel.The figure shows an embodiment of the invention. 1 is the ladder on which the first layer 2 of conductive paper is spun on so that between the individual Turns a helical cavity is present; so are the next Layers, for example two layers 3 and 4, spun on, but so that the cavities are offset from one another. Above is the last layer of conductive paper 5, which but close to one another or is spun with little overlap. 6 is the cable insulation "soaked paper, 7 the lead sheath.
Der Zweck dieser Anordnung ist, außer den Hohlräumen, welche die Poren in dem Papier darstellen, weitere Hohlräume zu schaffen, die Masseaufnahmefähigkeit der Schicht also zu erhöhen. Nur die letzte Lage 5, auf welcher die getränkte Papierisolation unmittelbar aufliegt, muß geschlossen sein, damit das gesamte aus dem Kupferleiter 1 und der Auflage bestehende leitende Gebilde eine glatte zylindrische Oberfläche erhält, welche mit Rücksicht auf eine günstige dielektrische Beanspruchung der Isolierschicht notwendig ist. Zweckmäßig wird für die ersten Lagen auf dem Leiter So ein stärkeres Papier verwendet, während die letzte Schicht aus einem dünneren Papier besteht.The purpose of this arrangement is, besides the voids that form the pores in the Represent paper to create more cavities, the mass absorption capacity of the So increase the layer. Only the last layer 5, on which the soaked paper insulation immediately rests, must be closed so that the entire existing of the copper conductor 1 and the support conductive structure receives a smooth cylindrical surface, which with regard to a favorable dielectric stress on the insulating layer is necessary. Appropriate a thicker paper is used for the first layers on the conductor, while the last layer consists of a thinner paper.
Claims (2)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEW82272D DE583980C (en) | High voltage cable with soaked paper insulation |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEW82272D DE583980C (en) | High voltage cable with soaked paper insulation |
Publications (1)
Publication Number | Publication Date |
---|---|
DE583980C true DE583980C (en) | 1933-09-13 |
Family
ID=7611450
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DEW82272D Expired DE583980C (en) | High voltage cable with soaked paper insulation |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE583980C (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1125024B (en) * | 1958-07-09 | 1962-03-08 | Pirelli | Electric high-voltage cable with insulation made of helically wound tapes and shielding tape layers made of one and two-layer tapes arranged between the cable dielectric and the conductor surface and / or the inner surface of the cable sheath |
-
0
- DE DEW82272D patent/DE583980C/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1125024B (en) * | 1958-07-09 | 1962-03-08 | Pirelli | Electric high-voltage cable with insulation made of helically wound tapes and shielding tape layers made of one and two-layer tapes arranged between the cable dielectric and the conductor surface and / or the inner surface of the cable sheath |
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