IPH Institut "Prüffeld für elektrische Hochleistungstechnik"
Berlin, DE
IEC 60076-4: 2002-06 DIN EN 60076-4 :2003-06 VDE 0532-76 -4 Power transformers - Part 4: Guide to the lightning impulse and switching impulse testing - Power transformers and reactors. Electrical engineering IEC 60076-5: 2006-02