H - Electricity – 02 – H
Patent
H - Electricity
02
H
317/12.4
H02H 9/06 (2006.01) H01T 1/24 (2006.01) H01T 4/04 (2006.01) H01T 4/10 (2006.01)
Patent
CA 1162231
OVERVOLTAGE PROTECTOR FOR TELEPHONE LINES Abstract of the Disclosure An overvoltage or surge protector, particularly for telephone lines, has two electrodes in opposition in a housing. The gap between the inner ends of the electrodes is set by a layer of dielectric material on the center portion of one or both end surfaces of the electrodes. Breakdown occurs with assistance from dielectric stimulation of the arc, resulting from an electrical field across the dielectric. The center portions are surrounded by annular grooves, which are also covered with a dielectric layer. The end surfaces external to the center portions can be convex, and also roughened.
381507
Anderson James E.
Lee John D.
Livermore Frederick C.
Jelly Sidney Thomas
Nortel Networks Limited
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