Oil-immersed cable connection assemblies for transformers and reactors having highest voltage for equipment U<(Index)m> from 72,5 kV to 550 kV; German version EN 50299:2002— 12 стр.
Determination of power losses in high-voltage direct current (HVDC) converter stations (IEC 61803:1999 + Corrigendum 1999); German version EN 61803:1999— 22 стр.