DE234803C - - Google Patents
Info
- Publication number
- DE234803C DE234803C DENDAT234803D DE234803DA DE234803C DE 234803 C DE234803 C DE 234803C DE NDAT234803 D DENDAT234803 D DE NDAT234803D DE 234803D A DE234803D A DE 234803DA DE 234803 C DE234803 C DE 234803C
- Authority
- DE
- Germany
- Prior art keywords
- wires
- cable
- lead
- metal foil
- lead sheath
- 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.)
- Active
Links
- 239000011888 foil Substances 0.000 claims description 4
- 239000002184 metal Substances 0.000 claims description 4
- 210000003462 Veins Anatomy 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 238000010792 warming Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G15/00—Cable fittings
- H02G15/08—Cable junctions
- H02G15/10—Cable junctions protected by boxes, e.g. by distribution, connection or junction boxes
- H02G15/103—Cable junctions protected by boxes, e.g. by distribution, connection or junction boxes with devices for relieving electrical stress
- H02G15/105—Cable junctions protected by boxes, e.g. by distribution, connection or junction boxes with devices for relieving electrical stress connected to the cable shield only
Landscapes
- Insulated Conductors (AREA)
Description
KAISERLICHESIMPERIAL
PATENTAMT.PATENT OFFICE.
Die Übertragung elektrischer Energie bei sehr hoher Spannung mittels verseilter Mehrfachkabel bietet insofern Schwierigkeiten, als das Verbinden der Adern zweier Kabel oder das Verbinden der Adern eines Kabels mit den Gummileitungen das Entfernen des Bleimantels und das Auseinanderziehen der einzelnen Adern bedingt. Durch das Entfernen des Bleimantels und das AuseinanderziehenThe transmission of electrical energy at very high voltage by means of stranded multiple cables offers difficulties insofar as connecting the wires of two cables or connecting the wires of one cable with the rubber lines removing the lead jacket and pulling the individual pieces apart Veins conditional. By removing the lead jacket and pulling it apart
ίο der Adern wird das elektrische Feld im Kabel gestört, und es tritt in der nächsten Nähe des Bleimantels eine starke Strahlung zwischen den Leitern auf, die zunächst eine bedeutende Erwärmung und schließlich ein Durchschlagen der Adern zur Folge hat.ίο the wires becomes the electrical field in the cable disturbed, and strong radiation occurs between the in the immediate vicinity of the lead jacket Ladders on which first a significant warming and finally a bottoming out of the veins.
Um dies zu verhüten, werden die freigelegten isolierten Adern und der Bleimantel an der Verbindungstelle mit einer Metallfolie, ζ. Β. Stanniol, derartig bewickelt, daß diese Metallfolie in unmittelbarer und vollständiger Berührung mit dem Bleimantel des Kabels steht.To prevent this, the exposed insulated wires and the lead sheath are attached the connection point with a metal foil, ζ. Β. Tinfoil wrapped in such a way that this Metal foil in direct and complete contact with the lead sheath of the cable stands.
Auf diese Weise werden die Strahlungspunkte möglichst weit von dem Bleimantel und zugleich auch voneinander entfernt. Es liegt dann zwischen ihnen eine Schicht Isoliermasse von so hoher Durchlagfestigkeit, daß die Strahlungserscheinungen nicht mehr auftreten können.In this way, the radiation points are as far as possible from the lead sheath and at the same time also distant from each other. There is then a layer of insulating compound between them of such high dielectric strength that the radiation phenomena no longer occur can.
Die Zeichnung zeigt in Fig. 1 eine Verbindungsmuffe mit einem gemäß der Erfindung bekleideten Kabel und in Fig. 2 einen Schnitt durch das Kabel in der Ebene fi-q der Fig. 1. α ist das Mehrfachkabel, b der Bleimantel, c die Metallfolie; d sind die isolierten Adern, und e ist das Gehäuse der Muffe. Die Anzahl der Adern ist beliebig; im Falle des Beispiels sind zwei angenommen (Zweifachkabel).The drawing shows in FIG. 1 a connecting sleeve with a cable clad according to the invention and in FIG. 2 a section through the cable in the plane fi-q of FIG. 1. α is the multiple cable, b the lead sheath, c the metal foil; d are the insulated wires, and e is the casing of the sleeve. The number of wires is arbitrary; in the case of the example two are assumed (double cable).
Claims (1)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE234803C true DE234803C (en) |
Family
ID=494638
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DENDAT234803D Active DE234803C (en) |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE234803C (en) |
-
0
- DE DENDAT234803D patent/DE234803C/de active Active
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