Line protector for a communications circuit
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United States of America Patent
Stats
-
Apr 14, 1981
Grant Date -
N/A
app pub date -
Mar 22, 1979
filing date -
Mar 22, 1979
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A protector for a communications line comprises a three electrode gas tube surge voltage arrester as a primary protective device and metal oxide varistors as additional protective devices. In series with each side of the line, is an inductor that serves to isolate the gas tube from the varistors at relatively fast rise times of transient overvoltages. The gas tube, the varistors and the inductors are all mounted in a single housing that is divided into adjacent sections by an insulating member. The gas tube is in one section and the inductors and varistors are in the other section, the inductors being side-by-side and each coaxial with a pin that is adapted to be connected to the line.
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