DE419374C - Process for improving the induction protection of cables with lead coats - Google Patents
Process for improving the induction protection of cables with lead coatsInfo
- Publication number
- DE419374C DE419374C DEC34050D DEC0034050D DE419374C DE 419374 C DE419374 C DE 419374C DE C34050 D DEC34050 D DE C34050D DE C0034050 D DEC0034050 D DE C0034050D DE 419374 C DE419374 C DE 419374C
- Authority
- DE
- Germany
- Prior art keywords
- lead
- cables
- improving
- induction protection
- coats
- 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
- H01B11/00—Communication cables or conductors
Landscapes
- Insulated Conductors (AREA)
- Communication Cables (AREA)
Description
Verfahren zur Verbesserung des Induktionsschutzes von Kabeln mit Bleimänteln. Um bei Schwachstromkabeln, deren Leiter gegen Induktionsstörungen von Starkstromleitungen aus geschützt werden sollen, die Induktivität des Bleimantels zu erhöhen, wird der Bleimantel mit einer Eisenarmierung versehen. Dies hat indes den Übelstand, daß die Eisenarmierung nicht unmittelbar auf den Bleimantel gelegt werden kann, da dieser dann seine Biegsamkeit einbüßen und bei jeder Biegung Schaden nehmen würde. Es muß daher zwischen Bleimantel und Armierung ein Zwischenraum gelassen werden, in welchem eine aus Jute oder ähnlichen weichen Stoffen bestehende Polsterung angebracht ist. Dann befindet sich aber das Eisen nicht am Ort der größten magnetischen Feldstärke, so daß seine Wirksamkeit nicht in vollem Maße zur Geltung kommt.Process for improving the induction protection of cables with lead sheaths. In order to protect low-voltage cables with their conductors against induction interference from high-voltage lines to be protected from increasing the inductance of the lead jacket, the Provided lead jacket with iron reinforcement. This, however, has the disadvantage that the iron reinforcement cannot be placed directly on the lead jacket, as this would then lose its flexibility and be damaged with every bend. It must therefore a gap is left between the lead jacket and the armouring, in which upholstery made of jute or similar soft fabrics is attached. But then the iron is not at the location of the greatest magnetic field strength, so that its effectiveness does not come into its own.
Gemäß der Erfindung wird zur Verbesserung des Induktionsschutzes gegen äußere Beeinflussungen der Bleimantel des Kabels mit einem Anstrich versehen, der aus fein verteiltem Eisen oder sonstigem magnetischen Metall in Mischung mit einem geeigneten dickflüssigen Bindemittel hergestellt wird und unmittelbar auf dem Bleimantel in passender Stärke aufgetragen wird. Man kann den magnetisch wirkenden Anstrich auch auf einen Streifen von Papier oder- beliebigem Gewebe einseitig oder doppelseitig anbringen und diesen um den Bleimantel wickeln. Zur Erzielung eines besseren und sicheren Haftens des Anstrichs auf der Unterlage kann diese nach Auftragung der Schicht bei passender Temperatur durch geeignete Walzen geführt werden. Um große Auftragsdicken zu vermeiden, können auch mehrere Streifen über- oder nebeneinander Verwendung finden.According to the invention is to improve the induction protection against external influences of the lead sheath of the cable provided with a paint that of finely divided iron or other magnetic metal mixed with a suitable viscous binder is made and applied directly to the lead coat is applied in the appropriate thickness. You can use the magnetic paint also on a strip of paper or any fabric, one-sided or double-sided and wrap it around the lead sheath. To achieve a better and After the application of the Layer can be passed through suitable rollers at a suitable temperature. To big To avoid application thickness, several strips can be placed on top of or next to each other Find use.
Das Verfahren gemäß der Erfindung bietet den Vorteil, daß der Bleimantel in seiner Biegsamkeit nicht beeinträchtigt wird, und daß die Aufbringung des Anstrichs nach der Fertigstellung des Kabels erfolgen kann, ohne daß es einer besonderen Nachbehandlung bedarf, wie es z. B. der Fall ist, wenn man galvanische Überzüge anbringt.The method according to the invention offers the advantage that the lead sheath its flexibility is not impaired, and that the application of the paint after completion of the cable can be done without requiring any special post-treatment needs, as z. B. is the case when applying galvanic coatings.
Claims (2)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEC34050D DE419374C (en) | 1923-10-10 | 1923-10-10 | Process for improving the induction protection of cables with lead coats |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEC34050D DE419374C (en) | 1923-10-10 | 1923-10-10 | Process for improving the induction protection of cables with lead coats |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE419374C true DE419374C (en) | 1925-09-28 |
Family
ID=7021127
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DEC34050D Expired DE419374C (en) | 1923-10-10 | 1923-10-10 | Process for improving the induction protection of cables with lead coats |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE419374C (en) |
-
1923
- 1923-10-10 DE DEC34050D patent/DE419374C/en not_active Expired
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