KS IEC60287-2-1:2023

Electric cables - Calculation of the current rating - Part 2-1: Thermal resistance - Calculation of thermal resistance

Solely applicable to the conditions of steady-state operation of cables at all alternating voltages, and direct voltages up to 5 kV, buried directly in the ground, in ducts, in troughs or in steel pipes, both with and without partial drying-out o