标准摘要
[中文适用范围]： 本部分 IEC 60287 提供了一种计算并联布置的单芯电缆的相电流和环流损耗的方法。该方法可用于任何数量的并联电缆，任何物理布局。可以计算任何护套连接方式的相电流。对于护套损耗的计算，假设护套两端连接。IEC 60287-1-2 中给出了两回路平面布置中护套涡流损耗的计算方法。 [外文原描述]： IEC 60287-1-3:2023 provides a method for calculating the phase currents and circulating current losses in single-core cables arranged in parallel. The method described in this document can be used for any number of cables per phase in parallel in any physical layout. The phase currents can be calculated for any arrangement of sheath bonding. For the calculation of sheath losses, it is assumed that the sheaths are bonded at both ends. A method for calculating sheath eddy current losses in two circuits in flat formation is given in IEC 60287-1-2.
英文名称Electric cables - Calculation of the current rating - Part 1-3: Current rating equations (100 % load factor) and calculation of losses - Current sharing between parallel single-core cables and calculation of circulating current losses