IMPACT RESISTANT COMPACT CABLE

摘要

The present invention concerns a cable for use in a predetermined voltage class, said cable comprising: a conductor; an insulating layer surrounding said conductor, said insulating layer having a thickness selected to provide a predetermined electrical stress when the cable is operated at a nominal voltage comprised in said predetermined voltage class, and a protective element around said conductor having a thickness and mechanical properties selected to provide a predetermined impact resistance capability, said protective element comprising at least one expanded polymeric layer. The insulating layer thickness the protective element thickness are selected in combination to minimize the overall cable weight while preventing a detectable insulating layer damage upon impact of 50 J energy. The present invention further relates to a method for designing a cable.