Recommendations for testing DC extruded cable systems for power transmission at a rated voltage up to and including 800 kV

The large number of projects and the quick development needed by the industry to match the demand of always more performing HVDC systems requires commonly shared and agreed testing method to speed up the time to market of technology solutions.

This Technical Brochure is a pre-standardisation document which recommends a series of tests on extruded cables systems for DC power transmission (land or submarine cables with their accessories in fixed installations) up to and including 800 kV. The “extruded” insulation materials covered by this recommendation include thermoplastic polyolefins, mixtures of thermoplastic polyolefins, crosslinked polyolefins, mixtures thereof, and rubber-like materials. The materials may be filled (e.g. with minerals or nano-particles) or unfilled.