IEC 60076-10-1 2005 Power transformers – Part 10-1: Determination of sound levels – Application guide IEC 60076-10-1 2005 Power transformers – Part 10-1: Determination of sound levels – Application guide
IEC 60076-10 2001 Power Transformers – Part 10: Determination of sound levels IEC 60076-10 2001 Power Transformers – Part 10: Determination of sound levels