AT149940B - Telecommunication cables. - Google Patents
Telecommunication cables.Info
- Publication number
- AT149940B AT149940B AT149940DA AT149940B AT 149940 B AT149940 B AT 149940B AT 149940D A AT149940D A AT 149940DA AT 149940 B AT149940 B AT 149940B
- Authority
- AT
- Austria
- Prior art keywords
- metal strips
- cables
- telecommunication cables
- return line
- wound
- Prior art date
Links
- 239000002184 metal Substances 0.000 claims description 10
- 229910052751 metal Inorganic materials 0.000 claims description 10
- 238000009413 insulation Methods 0.000 claims description 4
- 239000004020 conductor Substances 0.000 description 4
- 230000002787 reinforcement Effects 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 239000004793 Polystyrene Substances 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 229920002223 polystyrene Polymers 0.000 description 1
Landscapes
- Insulated Conductors (AREA)
Description
<Desc/Clms Page number 1>
Fernmeldekabel.
Um Kabel mit schraubenlinienförmigen Metallbändern, die als Abstützung des Bleimantels oder bei konzentrischer Leiteranordnung als Rückleitung dienen, torsionsfrei zu machen, wird die über den Metallbändern liegende Bewehrung aus Metalldraht oder Metallband mit entgegengesetzter Sehlagriehtung aufgebracht. Es hat sich gezeigt, dass die Metallbänder bei Kabeln mit nachgiebiger Isolation unter den Metallbändern und mit der üblichen Bewehrung bei Biegungs-oder Torsionsbeanspruchungen des Kabels während der Verlegung leicht einknicken. Dieses tritt besonders bei Hochfrequenzkabeln mit konzentrischer Leiteranordnung und Luftraumisolation ein, deren Luftraumisolation Platz zum Einknicken der Bänder bietet.
Zur Vermeidung dieser Nachteile werden erfindungsgemäss die Bänder, die als Stützorgan oder bei konzentrischer Leiteranordnung als Rückleitung dienen, in steilgängiger Schraubenlinie aufgewickelt und darüber die Draht- oder Bandbewehnmg mit derselben Schlagrichtung wie die Metallbänder aufgebracht. Es hat sich ergeben, dass die Bänder der so aufgebauten Kabel nicht mehr einknicken. In der Zeichnung ist ein Ausführungsbeispiel eines Hochfrequenzkabels dargestellt.
Der Leiter a ist durch eine Wendel b aus Polystyrol von der konzentrischen Rückleitung c aus steilgängig gewickelten Kupferbändern getrennt. Über der Rückleitung c ist der Bleimantel cl und die Drahtbewehrung e angebracht.
**WARNUNG** Ende DESC Feld kannt Anfang CLMS uberlappen**.
<Desc / Clms Page number 1>
Telecommunication cables.
In order to make cables torsion-free with helical metal strips, which serve as a support for the lead sheath or, in the case of a concentric conductor arrangement, as a return line, the reinforcement made of metal wire or metal strip with opposing layers is applied over the metal strips. It has been shown that the metal strips in cables with flexible insulation under the metal strips and with the usual reinforcement buckle slightly when the cable is subjected to bending or torsion stresses during laying. This occurs particularly with high-frequency cables with a concentric conductor arrangement and air space insulation, the air space insulation of which offers space for the bands to buckle.
To avoid these disadvantages, according to the invention, the strips, which serve as a support element or, in the case of a concentric conductor arrangement, as a return line, are wound up in a steep helical line and the wire or strip movement is applied over them with the same lay direction as the metal strips. It has been found that the straps of the cables constructed in this way no longer buckle. The drawing shows an embodiment of a high-frequency cable.
The conductor a is separated by a helix b made of polystyrene from the concentric return line c made of steeply wound copper strips. The lead jacket cl and the wire reinforcement e are attached over the return line c.
** WARNING ** End of DESC field may overlap beginning of CLMS **.
Claims (1)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE149940X | 1935-10-30 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| AT149940B true AT149940B (en) | 1937-06-10 |
Family
ID=5673617
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| AT149940D AT149940B (en) | 1935-10-30 | 1936-10-06 | Telecommunication cables. |
| AT151892D AT151892B (en) | 1935-10-30 | 1936-11-17 | Telecommunication cables. |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| AT151892D AT151892B (en) | 1935-10-30 | 1936-11-17 | Telecommunication cables. |
Country Status (1)
| Country | Link |
|---|---|
| AT (2) | AT149940B (en) |
-
1936
- 1936-10-06 AT AT149940D patent/AT149940B/en active
- 1936-11-17 AT AT151892D patent/AT151892B/en active
Also Published As
| Publication number | Publication date |
|---|---|
| AT151892B (en) | 1937-12-10 |
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