標準號：SIS SS 424 14 24-1980
中文標準名稱：電力電纜．額定電壓1至24千伏的載流能力電纜
英文標準名稱：Power cables — Current carrying capacities for cables with rated voltage 1 to 24 kV
發(fā)布日期：1980/5/20 12:00:00
實施日期：1999/12/31 12:00:00
適用范圍：This standard indicates how cables with rated voltage of 1 up to 24 kV and designed according to SEN in force may be loaded with current under different conditions.The table values are applicable to alternating current of power frequency. The values for three-core cables with concentric neutral conductor are applicable to unloaded neutral conductor or when the effect of the current in the neutral conductor is compensated by a reduction of the current in one or several of the phase conductors. The values are not applicable to cables with maximum allowed current in the phase conductors simultaneous-ly as the neutral conductor is loaded with a current caused by harmonics in the system. The values for three-core cables also apply to four-core cables when the fourth conductor is used as an unloaded neutral conductor.Cables in single-phase systems installed, flat with open screen circuits can be loaded with the values given for single-core cables.The table values can also be used for direct current. The values for open screen circuits shall be used for single-core cables.