The latest revision introduces critical changes to accommodate modern ultra-high voltage (UHV) systems and improve testing usability: For equipment with
Simulating transient events like lightning strikes or switching operations. iec 600601 pdf
The standard applies to on electrical equipment with a highest voltage ( Umcap U sub m iec 600601 pdf
The current version is the , officially designated as IEC 60060-1:2025 . Core Scope and Application iec 600601 pdf