Combined smooth and corrugated radial water barrier for subsea cables Equinor Energy AS, Steinar Midttveit and Halfdan Hilde

摘要

Subsea cables are essential for transporting power to, and from remote offshore locations. In a non-renewable energy context, subsea cables can transport power from onshore stations to offshore oil and gas installations (land to sea). In a renewable energy context, subsea cables can transport power from offshore installations (e.g., floating wind platforms) to land (sea to land), or to other offshore installations (sea to sea). More generally, subsea cables can transport power between states or countries separated by water (land to land via sea). Subsea cables are not limited to use in the sea. They are suitable for use in any body of water, for example, in lakes and the like. A key challenge faced when using any subsea cable is how to prevent moisture or water degradation of the electrical insulation elements in the subsea cable. Subsea cables subject to static or dynamic loads compound this problem.