: This factor accounts for the heat dissipation (non-adiabatic effects).

provides the official methodology for determining how much current a conductor can safely handle during a fault without damaging its insulation. IEC Webstore Core Calculation Methodology

IEC 60949, titled is a technical standard used primarily for electrical cable sizing .

IEC 60949: The Unsung Hero of Electrical Safety

—the heat that escapes the conductor into the insulation during a fault. Following the standard's three-step methodology: Adiabatic Calculation