DIN EN 60664-4:2006 Insulation coordination for equipment within low-voltage systems - Part 4: Consideration of high-frequency voltage stress (IEC 60664-4:2005); German version EN 60664-4:2006
2007DIN EN 60664-4 Berichtigung 1:2007 Insulation coordination for equipment within low-voltage systems - Part 4: Consideration of high-frequency voltage stress (IEC 60664-4:2005); German version EN 60664-4:2006, Corrigenda to DIN EN 60664-4 (VDE 0110-4):2006-06; CENELEC-Corrigendum October 20
2006DIN EN 60664-4:2006 Insulation coordination for equipment within low-voltage systems - Part 4: Consideration of high-frequency voltage stress (IEC 60664-4:2005); German version EN 60664-4:2006