ELECTRICAL INSULATORS, MATERIALS AND EQUIPMENT

ELECTRICAL INSULATORS, MATERIALS AND EQUIPMENT

An elongate high voltage insulator (2) is formed of a rod or tube (4) of insulating material, with a pair of electrodes (6) spaced apart longitudinal ly thereof. At least part, and preferably the whole of the outer surface of the insulating material (4) is covered by a layer of material (8) comprisi...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: SPALDING, MATTHEW HELM, LIETZKE, RALF, GLEMBOCKI, ROBERT PAUL, MALIN, GEROLD, BOETTCHER, BODO
Format: Patent
Sprache:eng ; fre
Schlagworte:
BASIC ELECTRIC ELEMENTS
CABLES
CONDUCTORS
ELECTRICITY
INSULATORS
RESISTORS
SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING ORDIELECTRIC PROPERTIES
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Beschreibung
Zusammenfassung:An elongate high voltage insulator (2) is formed of a rod or tube (4) of insulating material, with a pair of electrodes (6) spaced apart longitudinal ly thereof. At least part, and preferably the whole of the outer surface of the insulating material (4) is covered by a layer of material (8) comprising a particulate filler of varistor powder in a matrix having a switching electrical stress-controlling characteristic that is in electrical contact with each of the electrodes (6). The insulator core (4) may be made of porcelain, and the stress-controlling material (8) may comprise zinc oxide.< /SDOAB>