Process for manufacturing open-air compound insulators
AssigneeRosenthal Technik AG
InventorsEwald Bauer, Martin Kuhl
Life of this patent
Estimating the term…
Abstract
Open-air compound insulators are made treating a prefabricated glass-filter rod with silane, extruding a rubber layer on the rod, strengthening the rubber layer and bonding prefabricated screens to the rubber layer by vulcanization.
Claims12
A process for manufacturing a sparkover-safe, open air compound insulator consisting essentially of surface treating a prefabricated glass fiber rod with a silane, extruding a rubber layer on said treated rod, strengthening said rubber layer, assembling radially preexpanded prefabricated screens to said rod and vulcanizing said assembly.
Compound insulator according to claim 7, characterized in that the thickness of extruded rubber layer on the fiber reinforced rod ranges from 1 to 10 mm.
Open-air compound insulator for use in external layer-endangered high-voltage installations having pollution limits rated at coating conductivities exceeding 40-micron layers characterized by a silane treated prefabricated glass fiber rod, a strengthened extruded rubber layer vulcanized on said rod, and a plurality of pre-expanded prefabricated screens vulcanized on said extruded layer.
Dependencies are inferred from the claim text.