Electricity: electrical systems and devices – Safety and protection of systems and devices – High voltage dissipation
Patent
1976-08-31
1977-12-06
Moose, Jr., Harry E.
Electricity: electrical systems and devices
Safety and protection of systems and devices
High voltage dissipation
337 18, 337 32, 361120, 361124, H02H 322
Patent
active
040620549
ABSTRACT:
Disclosed herein are gas tube arrestor configurations employing multiple-function fail-safe elements which coact with the gas tube arrestor to define both a fusible path for fail-safe shorting and grounding of the arrestor in the event of certain forms of excessive overloads, as well as ionization gaps to provide backup overvoltage protection in the event of gas tube failure. In the illustrated embodiments, annular fusible rings are coaxially coupled to the gas tube housing in such a way as to provide, when fused, a short circuit connection between electrodes, the fusible rings also including pole face sections for defining an ionizable gap which functions as a backup air gap protector should the gas tube fail, e.g. because of a gas leak.
Novel modular arrangements embodying the foregoing for use in central office and residential applications are also illustrated.
REFERENCES:
patent: 3281625 (1966-10-01), Wanaselja
patent: 3340431 (1967-09-01), Wanaselja
patent: 3522570 (1970-08-01), Wanaselja
patent: 3896343 (1975-07-01), Baker et al.
Moose Jr. Harry E.
TII Corporation
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