Communication system thermoprotection device for over voltage su

Details Communication system thermoprotection device for over voltage su Communication system thermoprotection device for over voltage su

1988-10-13

1989-12-12

Pellinen, A. D.

Electricity: electrical systems and devices

Safety and protection of systems and devices

High voltage dissipation

361118, 337 32, 337 34, H02H 904

Patent

active

048871834

ABSTRACT:
A thermal protection device for overvoltage suppressor which includes spaced contacts 6 mounted in overvoltage suppressor magazines 11 of communication systems. A bow-type spring 3 and a melt element 2 l are arranged with the overvoltage suppressor which is mounted in a chamber of a case body or housing 13. The melt element is pierced by at least one arm of the bow-type spring when an overvoltage occurs for short-circuiting the two contacts of the overvoltage suppressor. A thermal protection device with simple components prevents creepage currents between the bow-type spring and the contacts of the overvoltage suppressor 6, a chamber for the overvoltage suppressor is adjacent and abutting to a separate chamber formed in the case body for accommodating a bow-type spring. Between the two chambers there is a separating wall comprising a thermoplastic melt element.

REFERENCES:
patent: 4034326 (1977-07-01), Hill et al.
patent: 4056840 (1977-11-01), Lundsgaard et al.
patent: 4233641 (1980-11-01), Baumbach
patent: 4305109 (1981-12-01), Schilling et al.
patent: 4449156 (1984-05-01), Singer, Jr.
patent: 4717902 (1988-01-01), James

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