DE3538527

A crosslinked polyolefin insulated power cable with remarkably improved AC breakdown voltage and impulse withstand voltage has been obtained by a process which comprises extrusion-coating, on the outer surface of a conductor, (1) a material for the formation of an inner semiconductive layer, compris...

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Main Authors SHIONO, TAKEO, TASSAVORI, SHAHRZAD, YOKOHAMA, KANAGAWA, JP, HANAI, MISAO, AIDA, FUMIO, TOKIO/TOKYO, JP
Format Patent
LanguageEnglish
Published 25.04.1991
Subjects
ADHESIVES
BASIC ELECTRIC ELEMENTS
CABLES
CHEMICAL PAINT OR INK REMOVERS
CHEMISTRY
COATING COMPOSITIONS, e.g. PAINTS, VARNISHES ORLACQUERS
CONDUCTORS
CORRECTING FLUIDS
DYES
ELECTRICITY
FILLING PASTES
INKS
INSULATORS
METALLURGY
MISCELLANEOUS APPLICATIONS OF MATERIALS
MISCELLANEOUS COMPOSITIONS
NATURAL RESINS
PAINTS
PASTES OR SOLIDS FOR COLOURING OR PRINTING
POLISHES
SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING ORDIELECTRIC PROPERTIES
USE OF MATERIALS THEREFOR
WOODSTAINS
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Summary:A crosslinked polyolefin insulated power cable with remarkably improved AC breakdown voltage and impulse withstand voltage has been obtained by a process which comprises extrusion-coating, on the outer surface of a conductor, (1) a material for the formation of an inner semiconductive layer, comprising a base polymer and N-vinylcarbazole, (2) a crosslinkable polyolefin material for the formation of a crosslinked polyolefin insulating layer and (3) a material for the formation of an outer semiconductive layer in this order and then subjecting the coated conductor to a crosslinking treatment to form, on the outer surface of the conductor, an inner semiconductive layer, a crosslinked polyolefin insulating layer and an outer semiconductive layer in this order.
Bibliography:Application Number: DE19853538527