
Electric cables - Calculation of the current rating Part 3: Sections on operating conditions - Section 1: Reference operating conditions and selection of cable type
出版:International Electrotechnical Committee

专家解读视频
Is 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, troughs or in steel pipes, both with and without partial drying-out of the soil, as well as cables in air. This section concerns reference operatings and selection of cable type.
BS 7769-3.1:1997 - Identical