Applies to single-phase and three-phase oil-immersed power transformers (including auto-transformers), with the exception of certain small and special transformers, as defined in the scope of IEC 60076-1 (published in South Africa as an identical adoptio
SANS 60076-3:2000 history
2001SANS 60076-3:2000 Power transformers Part 3: Insulation levels, dielectric tests and external clearances in air