DIN EN 60255-22-4:2009 Measuring relays and protection equipment - Part 22-4: Electrical disturbance tests - Electrical fast transient/burst immunity test (IEC 60255-22-4:2008); German version EN 60255-22-4:2008
2014DIN EN 60255-26:2014 Measuring relays and protection equipment - Part 26: Electromagnetic compatibility requirements (IEC 60255-26:2013); German version EN 60255-26:2013 + AC:2013
2009DIN EN 60255-22-4:2009 Measuring relays and protection equipment - Part 22-4: Electrical disturbance tests - Electrical fast transient/burst immunity test (IEC 60255-22-4:2008); German version EN 60255-22-4:2008