is the international standard titled "Calculation of thermally permissible short-circuit currents, taking into account non-adiabatic heating effects" . It provides the technical framework for determining how much current an electrical cable or conductor can safely withstand during a short-circuit before it reaches dangerous temperature limits. Overview of the Standard
IEC 60949 is an international standard for "Calculation of thermally permissible short-circuit currents, taking into account non-adiabatic heating effects". It's a crucial document for electrical engineers, particularly those involved in the design and operation of electrical power systems. Iec 60949 Pdf Free Download
However, for longer fault clearing times (e.g., 0.5 to 5 seconds) or small conductors (e.g., control cables), heat dissipates into the insulation and surrounding materials. accounts for this heat loss, allowing higher permissible short-circuit currents. IEC 60949 is the international standard titled "Calculation