IEC 61936 does not exist in a vacuum. It cross-references product standards (like IEC 62271 for switchgear) to ensure that the equipment selected is rated for the specific environmental and electrical conditions of the site. It guides engineers on how to specify transformers, switchgear, cables, and busbars to withstand fault currents and thermal stresses.
Covers installations with nominal voltages above 1 kV AC and frequencies up to 60 Hz. It applies to substations, power stations, industrial systems, and offshore units. iec 61936 pdf
The standard is divided into two main parts: IEC 61936 does not exist in a vacuum
Engineers familiar with IEC 60364 (Low Voltage) must adjust their thinking when applying IEC 61936. The risks in high voltage are significantly different: iec 61936 pdf