Protection circuitry for cable transmission system

Details Protection circuitry for cable transmission system Protection circuitry for cable transmission system

1978-04-26

1979-07-10

Moose, Jr., Harry E.

Electricity: electrical systems and devices

Safety and protection of systems and devices

Load shunting by fault responsive means

179170R, 330207P, 361 91, 361119, H02H 904

Patent

active

041610083

ABSTRACT:
A protection circuit for a cable transmission system comprising a multipaired cable core surrounded by a conductive sheath wherein at least some of the cable pairs have one or more line powered repeater amplifiers connected in series therewith at discrete locations. Gas tubes connect each of the amplifiers input and output terminals to a common bus at each location. In addition a further gas tube having a breakdown voltage several times higher than the others at that location, is connected between the common bus and the conductive sheath, so as to provide controlled breakdown therebetween.

REFERENCES:
patent: 3644787 (1972-02-01), Hamilton
patent: 3894274 (1975-07-01), Rosenberry, Jr.
patent: 4099217 (1978-07-01), Fitchew
"CS-36 M Submarine Coaxial Cable Repeater," Kaizu et al.- Review of the Electrical Communications Laboratories, vol. 22, No. 5-6, pp. 398-422, May-Jun. 1974.

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