DE7429560U - Longitudinally watertight high-frequency cable - Google Patents
Longitudinally watertight high-frequency cableInfo
- Publication number
- DE7429560U DE7429560U DE19747429560 DE7429560U DE7429560U DE 7429560 U DE7429560 U DE 7429560U DE 19747429560 DE19747429560 DE 19747429560 DE 7429560 U DE7429560 U DE 7429560U DE 7429560 U DE7429560 U DE 7429560U
- Authority
- DE
- Germany
- Prior art keywords
- plastic
- outer conductor
- frequency cable
- longitudinally watertight
- conductor tube
- 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
- 239000004020 conductor Substances 0.000 claims description 14
- 239000004033 plastic Substances 0.000 claims description 12
- 229920003023 plastic Polymers 0.000 claims description 12
- 238000009413 insulation Methods 0.000 claims description 5
- 208000001848 dysentery Diseases 0.000 claims description 2
- 239000007787 solid Substances 0.000 claims description 2
- 239000004698 Polyethylene Substances 0.000 description 10
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 230000001413 cellular effect Effects 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 230000009172 bursting Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- -1 polyethylene Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
- H01B7/28—Protection against damage caused by moisture, corrosion, chemical attack or weather
Landscapes
- Insulated Conductors (AREA)
Description
AEG-TELEFUNKEN Kabelwerke Aktiengesellschaft, Rheydt 4330 Mülheim (Ruhr) - Saarn Sommerfeld 22 - 28AEG-TELEFUNKEN cable works Aktiengesellschaft, Rheydt 4330 Mülheim (Ruhr) - Saarn Sommerfeld 22-28
20. 8. 1974August 20, 1974
Die Erfindung geht von einem längswasserdichten Hochfrequenzkabel aus, dessen kunststoffisolierter Innenleiter koaxial in einem mit Preßsitz auf den Kunststoff gezogenen Außenleiter-Rohr angeordnet ist.The invention is based on a longitudinally watertight high-frequency cable whose plastic-insulated inner conductor is coaxial is arranged in an outer conductor tube drawn onto the plastic with a press fit.
Der Erfinimg liegt die Aufgabe zugrunde, solche Hochfrequenzkabel für hohe Temperaturänderungen, die sich zwischen minus 20° C bis plus 80° C erstrecken können, betriebssicher zu machen. Bei den isherigen Ausführungsformen der längswasserdichten Hochfrequenzkabeln mit Kunststoff isolierung hat sich gezeigt, daß das metallische Außenleiter-Rohr, z.B. aus Kupfer, bei höheren Temperaturen von z.B. 60° C an der geschweißten oder gelöteten Längsnaht oder in der Nahtzone platzt und damit das Kab^l unbrauchbar wird. Diese Art der Zerstörung des Kabels tritt besonders bei Kupferrohren mit dünner Wandstärke auf.The invention is based on the task of such high-frequency cables for high temperature changes that range between minus 20 ° C to plus 80 ° C to make them operationally safe. In the isherigen embodiments of the longitudinally watertight high-frequency cables with plastic insulation shown that the metallic outer conductor tube, e.g. made of copper, at higher temperatures of e.g. 60 ° C on the welded or soldered longitudinal seam or bursts in the seam zone, making the cable unusable. This kind of destruction of the cable occurs especially with thin-walled copper pipes.
Als Mittel zur I' uri[:; der gestellten Aufgabe ist erf indunrrsgemäß b'.'i dem ein^an; ;s ■•■e.'.annten längswasserdichten Hochfrequenzkabel zwischen einer festen Kunststoffschicht und dem Außenloiter-Robr eine die bei Temperaturänderungen auftretenden Volumenänderanrun des Außen!eiter-Rohrea aufnehmende weicheAs a means of I 'uri [ : ; the task at hand is, according to the invention, b '.' i the a ^ an; A longitudinally watertight high-frequency cable between a solid layer of plastic and the outer loiter-Robr a soft to absorb the volume changes of the outer tubing that occurs when the temperature changes
■»429560 27.1175■ »429560 27.1175
■ *·, < I It · ■■ * ·, <I It · ■
.Kunststoffschicht vorgesehen..Plastic layer provided.
Diese als Schwartenkonstruktion anzusehende Fora der Kunststoffisolierung besteht zweckmäßigerweise aus einem inneren Kern großen Volumens aus Voll-PE*und einem darüber extrudierten Mantel aus ZeIl-PE. Dabei haftet der Zell-PE-Mantel völlig an dem Kern aus VoIl-PE an. Da andererseits auch das äußere Metallrohr mit Preßsitz über den Zell-PE-Mantel gezogen ist, besteht volle Längswasserdichtigkeit in dem Kabel für al^e Temperaturbereiche, denen das Kabel ausgesetzt ist.This form of plastic insulation, which can be seen as a slab construction, expediently consists of an inner core of large volume made of full PE * and a jacket made of cell PE extruded over it. The cellular PE jacket adheres completely to the core made of full PE. On the other hand, since the outer metal pipe is also pulled over the cellular PE jacket with a press fit , there is full longitudinal watertightness in the cable for all temperature ranges to which the cable is exposed.
Die Zell-PE-Schichtdicke ist dabei so zu dimensionieren, daß sie dem Volumenanteil des Voll-PE-Kern angepaßt ist· Auf diese Veise wird ein Aufreißen oder Platzen dee Außenleiter-Rohres mit Sicherheit vermieden.The cell PE layer thickness is to be dimensioned in such a way that it is adapted to the volume proportion of the full PE core. In this way, tearing or bursting of the outer conductor pipe is reliably avoided.
Ein Ausführungsbeispiel der Erfindung ist in der Zeichnung dargestellt. An embodiment of the invention is shown in the drawing.
Ein Querschnitt durch das Hochfrequenzkabel zeigt den Innenleitex· 1, der in dem Außenleiter-Rohr 2 koaxial angeordnet ist. Zwischen den beiden Leitern 1 und 2 befindet sich die Kunststoffisolierung, auf der der Außenleiter 2 mit Preßsitz aufgezogen ist. Die Kunststoffisolierung besteht aus dem Kern 3 großen Volumens, z.B. aus VoIl-PE, und dem darüber extrudierten Mantel 4- aus z.B. ZeIl-PE. Beide Kunststoffteile liegen ebenfalls mit großer Haftung aneinander. Volumenänderungen des Außenleiter-Rohres 2 bewirken ein mehr oder weniger starkes Zusammenpressen oder Ausdehnen des weichen Mantels 4-, ohne daß die Längswasserdichtigkeit des Kabele verloren geht und ohne daß das Außenleiter-Rohr beschädigt wird. A cross section through the high-frequency cable shows the inner conductor x 1, which is arranged coaxially in the outer conductor tube 2. Between the two conductors 1 and 2 is the plastic insulation on which the outer conductor 2 is drawn with a press fit. The plastic insulation consists of the core 3 of large volume, for example made of full PE, and the jacket 4, extruded over it, made of, for example, cell PE. Both plastic parts also adhere closely to one another. Changes in volume of the outer conductor tube 2 cause the soft jacket 4 to be compressed or expanded to a greater or lesser extent without the longitudinal watertightness of the cable being lost and without the outer conductor tube being damaged.
"5TEf*= Polyäthylen" 5 TEf * = polyethylene
7429560 27.11.757429560 11/27/75
Claims (2)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19747429560 DE7429560U (en) | 1974-08-31 | 1974-08-31 | Longitudinally watertight high-frequency cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19747429560 DE7429560U (en) | 1974-08-31 | 1974-08-31 | Longitudinally watertight high-frequency cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE7429560U true DE7429560U (en) | 1975-11-27 |
Family
ID=6646406
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE19747429560 Expired DE7429560U (en) | 1974-08-31 | 1974-08-31 | Longitudinally watertight high-frequency cable |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE7429560U (en) |
-
1974
- 1974-08-31 DE DE19747429560 patent/DE7429560U/en not_active Expired
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