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IEC 60909-0 (Short-Circuit Currents)

International standard for short-circuit current calculations in three-phase AC systems. Covers scope, methodology, assumptions, and the four fault types.

IEC 60909-0:2016 Short-Circuit Calculations — Scope, Assumptions, and Limitations

In-depth guide to IEC 60909-0:2016 covering scope (LV and HV systems up to 550 kV), the balanced sinusoidal voltage assumption, why IEC 60909 gives conservative results, excluded equipment types, and the four fault types engineers must calculate.