Dynamic High Voltage Subsea Cables and Fatigue of its Components

Abstract

Abstract Subsea cables plays a pivotal role in the offshore energy space. Increased expectations considering offshore renewable power production- or electrification requirements, represents primary drivers for continued innovation of dynamic cables. Larger transmission capacity- either by increased voltage or conductor cross-sections, increase the physical footprint of cable components or introduce completely new components in a dynamic cable context- Most notably a radial water barrier. Fatigue as a failure mode becomes an increasingly relevant and critical failure mode where the relevant mechanisms, material selection and environment differentiate from prior art. The scope of this work is to investigate fatigue as a failure mode in a state-of-the art subsea cable context, as well as highlight current technology level of high voltage dynamic subsea cables.