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US 8,508,904 B2Granted
Surge arrester
AssigneeEpcos AG
InventorGero Zimmermann
Life of this patent
Estimating the term…
Abstract
A surge arrester includes a housing with a tubular insulating body and at least two electrodes. A layer sequence includes at least one electrically conductive or semiconductive layer, at least one electrically conductive layer and at least one insulating layer and is arranged at least in sub-areas on the inside of the insulating body.
Claims20
A surge arrester, comprising:
- a housing which comprises a tubular insulating body with at least two electrodes, the insulating body being filled with a gas;
- and
- a layer sequence which comprises an electrically conductive or semiconductive layer that serves as a trigger strip, the layer sequence further comprising an electrically conductive layer and an insulating layer, the layer sequence arranged at least in sub-areas on an inside of the insulating body.
A surge arrester comprising:
- a housing which comprises a tubular insulating body with at least two electrodes;
- and
- a layer sequence which comprises an electrically conductive or semiconductive an electrically conductive layer and an insulating layer, the layer sequence arranged at least in sub-areas on an inside of the insulating body, wherein the electrically conductive or semiconductive layer comprises graphite.
A surge arrester comprising:
- a housing which comprises a tubular insulating body with at least two electrodes;
- and
- a layer sequence which comprises an electrically conductive or semiconductive an electrically conductive layer and an insulating layer, the layer sequence arranged at least in sub-areas on an inside of the insulating body, wherein the insulating layer comprises glass and/or ceramic.
Dependencies are inferred from the claim text.