标准摘要
[中文适用范围]： IEC 287分为三个部分，以便更方便地进行文件的修改和补充。每个部分都分为几个部分，这些部分作为单独的标准发布。第 1 节包含以下公式： [外文原描述]： 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.
英文名称Electric cables - Calculation of the current rating - Part 1: Current rating equations (100% load factor) and calculation of losses - Section 1: General