DE530060C - Process for the manufacture of telecommunications cables with point loading - Google Patents
Process for the manufacture of telecommunications cables with point loadingInfo
- Publication number
- DE530060C DE530060C DES80489D DES0080489D DE530060C DE 530060 C DE530060 C DE 530060C DE S80489 D DES80489 D DE S80489D DE S0080489 D DES0080489 D DE S0080489D DE 530060 C DE530060 C DE 530060C
- Authority
- DE
- Germany
- Prior art keywords
- manufacture
- point loading
- telecommunications cables
- coil fields
- cables
- 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
- 238000000034 method Methods 0.000 title claims description 4
- 238000004519 manufacturing process Methods 0.000 title claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 8
- 230000001939 inductive effect Effects 0.000 description 2
- 230000003321 amplification Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
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
- H01B11/02—Cables with twisted pairs or quads
- H01B11/12—Arrangements for exhibiting specific transmission characteristics
Landscapes
- Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
Description
Verfahren zur Herstellung von Fernmeldeseekabeln mit punktförmiger Belastung Bei Fernmeldeseekabeln tritt beim Verlegen infolge der Verschiedenheit des Druckes in den verschiedenen Wassertiefen eine mit der Wassertiefe zunehmende Erhöhung der Kapazität auf, weil das Kabel in größeren Wassertiefen stärker zusammengepreßt wird als in geringeren. Hierdurch wiederum entstehen Unregelmäßigkeiten in der Größe des Wellenwiderstandes, die die Güte der Verstärkung der Sprechströme herabsetzen, da die Nachbildung des Wellenwiderstandsverlaufes durch Ersatzschaltungen Schwierigkeiten bereitet.Process for the manufacture of telecommunications cables with punctiform Load with telecommunication cables occurs when laying as a result of the difference the pressure in the different water depths increases with the water depth Increase in capacity because the cable is more compressed in greater water depths will than in lesser. This in turn creates irregularities in size the wave resistance, which reduces the quality of the amplification of the speech currents, because the simulation of the wave resistance curve by equivalent circuits difficulties prepares.
Um diese Übelstände zu vermeiden, hat man für Fernmeldeseekabel mit stetig verteilter induktiver Belastung vorgeschlagen, die künstliche induktive Belastung pro Längeneinheit in den einzelnen Längenabschnitten, die in verschieden tiefen Zonen zu liegen kommen, verschieden, und zwar je- weils so zu bemessen, daß alle Längenabschnitte nach der Verlegung des Kabels den gleichen vorgeschriebenen Wellenwiderstand haben. Dieses Verfahren ist jedoch für Kabel mit punktförmiger Belastung nicht durchführbar.In order to avoid these inconveniences, it has been proposed for telecommunication cables with constantly distributed inductive load that the artificial inductive load per unit of length in the individual length sections, which come to lie in zones of different depths, should be measured differently, in each case in such a way that all Length sections after laying the cable have the same prescribed wave impedance. However, this procedure cannot be carried out for cables with point loads.
Gemäß der Erfindung wird bei Kabeln mit punktförmiger Belastung die ungünstige Wirkung der durch die verschiedenen Wassertiefen bedingten Änderung der Kapazitäten der einzelnen Spulenfelder dadurch ausgeglichen, daß die in größeren Wassertiefen zu verlegenden Spulenfelder vor der Verlegung mit einer um so viel geringeren: Kapazität versehen werden als die in geringeren Wassertiefen zu verlegenden Spulenfelder, daß nach der Verlegung alle Spulenfelder annähernd die gleiche Kapazität besitzen. Dies ist ohne weiteres möglich, da die Gestaltung des Meeresbodens auf der Kabelstrecke im allgemeinen bekannt ist, so daß man bereits vor der Verlegung weiß, in welche Tiefe die einzelnen Spulenfelder zu liegen kommen.According to the invention, the cables with point loading unfavorable effect of the change in the due to the different water depths The capacities of the individual coil fields are balanced by the fact that the larger ones Coil fields to be laid in water depth before laying with one by as much lower: capacity to be provided than those to be laid in shallower water depths Coil fields that after the installation all coil fields have approximately the same capacity own. This is easily possible as the design of the sea floor is based on the cable route is generally known, so that one can already do this before laying knows the depth of the individual coil fields.
Die Kapazität kann man in an sich bekannter Weise z. B. dadurch ändern, daß man entweder den Adernabstand oder die Dielektrizitätskonstante des Isoliermittels ändert oder aber auch beide Maßnahmen gleichzeitig anwendet.The capacity can be used in a manner known per se, for. B. change by that either the wire spacing or the dielectric constant of the insulating agent changes or applies both measures at the same time.
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DES80489D DE530060C (en) | 1927-07-01 | 1927-07-01 | Process for the manufacture of telecommunications cables with point loading |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DES80489D DE530060C (en) | 1927-07-01 | 1927-07-01 | Process for the manufacture of telecommunications cables with point loading |
Publications (1)
Publication Number | Publication Date |
---|---|
DE530060C true DE530060C (en) | 1931-07-20 |
Family
ID=7508910
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DES80489D Expired DE530060C (en) | 1927-07-01 | 1927-07-01 | Process for the manufacture of telecommunications cables with point loading |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE530060C (en) |
-
1927
- 1927-07-01 DE DES80489D patent/DE530060C/en not_active Expired
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