ELECTRIC CABLE HAVING A PROTECTING LAYER

ELECTRIC CABLE HAVING A PROTECTING LAYER

An electric cable comprising: a cable core having a radius and comprising an electric conductor and an insulating system; a first metal layer in radially outer position with respect to the cable core; and a semiconductive protecting layer between the cable core and the first metal layer. The insulat...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: FERRARI, Armando Michele, BAREGGI, Alberto, MAIOLI, Paolo
Format: Patent
Sprache:eng
Schlagworte:
BASIC ELECTRIC ELEMENTS
CABLES
CONDUCTORS
ELECTRICITY
INSULATORS
SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING ORDIELECTRIC PROPERTIES
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Beschreibung
Zusammenfassung:An electric cable comprising: a cable core having a radius and comprising an electric conductor and an insulating system; a first metal layer in radially outer position with respect to the cable core; and a semiconductive protecting layer between the cable core and the first metal layer. The insulating system comprises an insulating layer based on a propylene copolymer and the protecting layer is made of non-expanded material and has a thickness of from 0.5% to 3% the radius of the cable core. The cable is apt to safely operate at thermal cycles of from 20° C. to at least 90° C. (for example up to 130° C. or more), with substantially no deformation of the metal layer and of the overall cable structure.