IEC 60287-2-2:1995
电缆 电流定额的计算 第2部分:热阻 第2节:在室外敷防受阳光照射的电缆群的缩减因数的计算方法
Electric cables - Calculation of the current rating - Part 2: Thermal resistance - Section 2: A method for calculating reduction factors for groups of cables in free air, protected from solar radiation