Stromkabel

Details

Veröffentlichungs-Nr.

EP4800058

Anmeldetag

26. Februar 2025

Veröffentlichung

2. September 2026

Rechtsraum

EP

Abstract

The present invention relates to a power cable comprising a conductor, an inner semiconductive layer, an insulation layer and an outer semiconductive layer, obtainable by a process comprising the steps of a) preparing a semiconductive polypropylene composition (S-PP), which comprises a first heterophasic copolymer of propylene and ethylene (HECO1), carbon black and a dielectric fluid comprising at least one alkylaryl hydrocarbon, b) preparing a polypropylene composition (I-PP), which comprises a second heterophasic copolymer of propylene and ethylene (HECO2) and is free of a dielectric fluid, c) coating the conductor with an inner semiconductive layer comprising the semiconductive polypropylene composition (S-PP); d) coating the inner semiconductive layer with an insulation layer comprising the polypropylene composition (I-PP), and e) coating the insulation layer with an outer semiconductive layer comprising the semiconductive polypropylene composition (S-PP),a process for producing the power cable, andthe use of the dielectric fluid comprising at least one alkylaryl hydrocarbon in the semiconductive composition (S-PP) for increasing the Weibull alpha-value of the power cable to a value of at least 35 kV/mm.

Anmelder

Firma

Borealis GmbH

Land

🇦🇹 Österreich