IEC 60287-1-2-1993
电缆 电流定额的计算 第1部分:电流定额公式(100%负载因数)和损耗计算 第2节:双回路本行敷设护套涡流损耗因数
Electric cables; calculation of the current rating; part 1: current rating equations (100% load factor) and calculation of losses; section 2: sheath eddy current loss factors for two circuits in flat formation