NEN 10287-1-2-1994 IEC 287-1-2-1993 电缆.额定电流的计算.第1部分:额定电流方程式(负荷率100%)和损失率的计算.第2节:在平面结构中双电路铅包涡流损失率的计算
Electric cables.Calculation cof 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(IEC 287-1-2:1993)