IEC 60287-1-1 Ed. 1.2 b:2001, Electric cables - Calculation of the current rating - Part 1-1: Current rating equations (100 % load factor) and calculation of losses - General

Is applicable to the conditions of steady-state operation of cables at all alternating voltages, as well as in 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 of the soil, as well as cables in air.