GOST R IEC 60287-1-2-2009 电缆.额定电流的计算.第1-2部分:额定电流等式(100%负载系数)和损耗测定.平面双电路的护套涡流损耗系数
Electric cables. Calculation of the current rating. Part 1-2. Current rating equations (100 % load factor) and calculation of losses. Sheath eddy current loss factors for two circuits in flat formation