LST EN 60076-4-2003 Power transformers. Part 4: Guide to the lightning impulse and switching impulse testing. Power transformers and reactors (IEC 60076-4:2002)
2003LST EN 60076-4-2003 Power transformers. Part 4: Guide to the lightning impulse and switching impulse testing. Power transformers and reactors (IEC 60076-4:2002)