Gas tube vent-safe device

Details Gas tube vent-safe device Gas tube vent-safe device

H - Electricity

01

C

H01C 7/12 (2006.01) H01R 4/24 (2006.01) H01R 13/52 (2006.01) H01T 1/14 (2006.01) H04M 3/18 (2006.01) H04Q 1/02 (2006.01)

Patent

CA 2139329

A vent-safe protector (40) for a telecommunications gas tube (12) includes two electrodes (16, 55) (61, 63) separated by a non-linear resistive material (45). Each electrode is connected to a gas tube protector terminal (16, 18) to provide an alternate dis- charge path if the gas tube (12) fails. The non-linear resistive material (45) is substantially non-conductive when the electrical pot- ential between the electrodes is less than the material's breakdown voltage VB. Above that voltage it becomes conductive and supports a plasma discharge therethrough, effecting a sudden increase in conductivity between the electrodes for discharg- ing high energy potentials with a plasma voltage foldback functionally analogous to the foldback behavior of the gas tube protector.

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