Recommendations for additional testing for submarine cables from 6 KV (UM=7.2 KV) up to 60 KV (UM = 72.5 KV)
Continuous growth of the offshore renewable market has triggered a desire to increase the inter array cable voltage up to 60 kV (Um = 72.5 kV). Industrial cost pressure has led to cable designs at these voltage levels for HV submarine cables with either non-traditional water barriers or wet cable designs. Existing IEC standards and CIGRE recommendations do not cover all relevant aspects of new cable constructions up to Um=72,5 kV. An IEC Task Force was established to write a new standard covering these types of cables. The Task Force soon recognized that some important topics specific for certain MV cable designs are inadequately covered by these documents. For that reason, the B1.55 Working Group was convened to recommend important tests not covered in the IEC 63026 standard. Future submarine cable system testing shall include the tests recommended in this CIGRE Technical Brochure and those within IEC.
File Size: 2,7 MB
Pages NB: 58
may download free of charge all publications including most recent ones
may download free of charge publications over three years old and purchase all publications
HOW TO ACCESS TO E-CIGRE?
Click here to read a short guide to setting up your account and obtaining access to the global e-cigre.org website for all technical literature.
Guidelines and best practices for the commissioning and operation of controlled switching projects
Thermal monitoring of cable circuits and grid operators' use of dynamic rating systems
Moisture measurement in insulating fluids and transformer insulation – an evaluation of solid state sensors and chemical methods
Voltage Source Converter (VSC) HVDC for Power Transmission - Economic Aspects and Comparison with other AC and DC Technologies
Update of Service Experience of HV Underground and Submarine Cable Systems
Recommendations for testing of long AC submarine cables with extruded insulation for system voltage above 30 (36) to 500 (550) kV (This TB replaces electra article ELT_189_1)