AT119404B - Remote signaling cable with conductive sleeve isolated from earth. - Google Patents

Remote signaling cable with conductive sleeve isolated from earth.

Info

Publication number
AT119404B
AT119404B AT119404DA AT119404B AT 119404 B AT119404 B AT 119404B AT 119404D A AT119404D A AT 119404DA AT 119404 B AT119404 B AT 119404B
Authority
AT
Austria
Prior art keywords
earth
conductive sleeve
remote signaling
signaling cable
isolated
Prior art date
Application number
Other languages
German (de)
Inventor
Karl Kuedfmueller
Alfred Ing Zastrow
Original Assignee
Siemens & Halske Aktiengessels
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Siemens & Halske Aktiengessels filed Critical Siemens & Halske Aktiengessels
Application granted granted Critical
Publication of AT119404B publication Critical patent/AT119404B/en

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  • Communication Cables (AREA)

Description

  

   <Desc/Clms Page number 1> 
 



    Fernmeldelmbel   mit leitender, von Erde isolierter Hülse. 
 EMI1.1 
 
 EMI1.2 
 
 EMI1.3 
 

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   Um die Gleichheit der Fortpflanzungsgrössen herzustellen, ist es nun nicht erforderlich, dass die vier Konstanten R, L, 0 und G, wobei 0 die Kapazität und G die Ableitung für den Einheitsabschnitt ist, sämtlich berücksichtigt werden. Es genügt vielmehr, wenn das Produkt 
 EMI2.1 
 vernachlässigt werden kann. Auch beim zweiten Gliede spielt in der Regel   GL   nur die Rolle einer Korrektion gegenüber   RO.   Ferner hat das Produkt   LG   bei der Hülle nach praktisch gewonnenen Erfahrungen gewöhnlich genügend genau den gleichen Wert wie bei den Adern, so dass man meistens nur dem Widerstand der Hülle einen der vorhandenen Kapazität der Hülle entsprechenden Wert zu geben braucht. 



   Haben z. B. die Adern durchschnittlich die Werte   L=10-2H, 0 ==6-10-8F, =10 9   und G =   10-68   so ist Ra =   6#10-7 und GL = 10-8.   Wenn also die Hülle die   Kapazität Oll = 2'10-7 F   für 
 EMI2.2 
 



   PATENT-ANSPRÜCHE :
1. Fernmeldekabel, dadurch gekennzeichnet, dass die elektrischen Konstanten. der Hülle und der Adern derart beschaffen sind, dass die   Fortpflanzungsgrösse   der elektrischen Störungen auf der Hülle praktisch gleich der Fortpflanzungsgrösse auf den Adern ist.



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    Telecommunication bell with conductive sleeve isolated from earth.
 EMI1.1
 
 EMI1.2
 
 EMI1.3
 

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   In order to establish the equality of the propagation quantities, it is not necessary that the four constants R, L, 0 and G, where 0 is the capacitance and G is the derivative for the unit section, are all taken into account. Rather, it is enough if the product
 EMI2.1
 can be neglected. In the second term, too, GL usually only plays the role of a correction to RO. Furthermore, based on practical experience, the product LG usually has exactly the same value for the case as for the wires, so that in most cases only the resistance of the case needs to be given a value that corresponds to the existing capacity of the case.



   Have z. B. the cores average the values L = 10-2H, 0 == 6-10-8F, = 10 9 and G = 10-68 so Ra = 6 # 10-7 and GL = 10-8. So if the envelope has the capacity Oll = 2'10-7 F for
 EMI2.2
 



   PATENT CLAIMS:
1. Telecommunication cable, characterized in that the electrical constants. the sheath and the veins are such that the magnitude of propagation of the electrical interference on the sheath is practically equal to the magnitude of propagation on the veins.

 

Claims (1)

2. Kabel nach Anspruch 1, dadurch gekennzeichnet, dass die Produkte aus Induktivität und Kapazität und aus Widerstand und Kapazität für den Einheitsabschnitt der Hülle praktisch den entsprechenden Werten für die Adern gleich sind. 2. Cable according to claim 1, characterized in that the products of inductance and capacitance and of resistance and capacitance for the unit section of the sheath are practically the same as the corresponding values for the wires.
AT119404D 1928-03-03 1928-07-02 Remote signaling cable with conductive sleeve isolated from earth. AT119404B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE119404X 1928-03-03

Publications (1)

Publication Number Publication Date
AT119404B true AT119404B (en) 1930-10-25

Family

ID=5656034

Family Applications (1)

Application Number Title Priority Date Filing Date
AT119404D AT119404B (en) 1928-03-03 1928-07-02 Remote signaling cable with conductive sleeve isolated from earth.

Country Status (1)

Country Link
AT (1) AT119404B (en)

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