IEC 60050-692:2017 gives the terminology used when considering the dependability and quality of service of electric power systems. The concepts are categorized according to the following sections:
– system concepts;
– operating states of electric power systems;
– failures in electric power systems;
– outages of electric power systems equipment;
– outage occurrences in electric power systems;
– state durations and availability related concepts;
– interruptions in electric power systems;
– selected customer interruption measures;
– bulk electric power system load/energy curtailments;
– bulk electric system failures and measures;
– supply performance measures.
This terminology is consistent with the terminology developed in the other specialized parts of the IEV.
It has the status of a horizontal standard in accordance with IEC Guide 108.