IEC 60076-4:2026 applies to lightning and switching impulse tests on power transformers and reactors. Information is given on waveforms, test circuits including test connections, earthing practices, failure detection methods, test procedures, measuring techniques and interpretation of results.
PUBLISHED
EN 60076-4:2002
PUBLISHED
EN IEC 60076-4:2026
60.60
Standard published
Sep 11, 2026