General – Cable Innovation
As a world’ first, Nexans successfully achieved electrical Type Test for 525 kV DC SF6 gas free cable terminations.
This allows Nexans to offer a safer and sustainable solution to connect HVDC cables and brings Nexans closer to its goal to electrify the future.
As the importance of electricity continues to grow, the demand for High Voltage Direct Current (HVDC) connections is increasing, for both offshore and onshore applications, coupled with the need for decarbonized electric grids. This requires the development of new robust power network solutions.
Targeting products with lower CO2 equivalent emission potential, Nexans leveraged an extensive and in-depth knowledge to develop a full 525 kV HVDC cable system with SF6-free accessories including a dry-type Gas Insulated Switchgear (GIS) cable sealing end, and g3 gas filled GIS cable sealing end and an Outdoor Composite (or Air-Insulated Switchgear – AIS) cable sealing end.
The electrical type test according to international standards (CIGRE TB 852 and IEC 62895) was accomplished in Nexans’ High Voltage laboratory in Calais (France), under the certification of an independent third-party.
The successful testing performed so far is an important step towards showing that SF6 free HVDC accessories is technically achievable and places Nexans at the forefront in the development of innovative and advanced technological solutions for the power grids, and in particularly at this voltage level of HVDC application.