kV～kV高压电缆载流量表全要点

1、kVkV高压电缆载流量表（全） 要点作者:日期:6kV35kV高压电缆载流量电缆載疯量 The Current canying capacity of cable M加炸A导体Conductor导体标称截面 Nominal cross -section of conductor mm非皑装型电纜Uivanwred卡岂装型电纜Anwred单芯 Single-core二芯 Thiee-cor;二芯 Three-core衽空气中Ihair直埋土壤中Bun&d在空气中 In air直埋土壤中Bun&d在空气中In air直埋土壤中Buried飆导体Copper conductor25165160135

2 205ISO160 1ISO165r i75150245225195210195205703052752452602452为95370330300305300300120430375345350345345150490425395390350宪51855604S0455 445445亦240665555540515525505300165烦61550妙565400S90725720660695645铝导体 Alummum conductor2513012010511510511J535IM1451301401301coip cable.(S=2D)*导体标称截面 No

3、minal cross-section of conductor mm2电缆额定电压 Rated voltage of cable(kV)3.6/66166/108.7/108.7/1512/2018/2018/3021/3526/35电感 Inductance 从 F/km250 刃 540.61430.6474-350.57530.59320.62480.6390-500.55430.57110.60110.61450.65010.66750.6751700.53570.54860.57650.59190.52520.63940.6467950.51720.53180.56080.5726

4、0.60430.61800.62791200.50590.51970.54730.55860.58910.60510.61181500.49490.50790.53410.54490.57400.58950.59591850.48850.50060.52520.53540.56400.57600.58392400.47900.48900.51430.52160.54870.56150.56773000.47490.48180.50320.51020.53760.54840.55404000.46600.47020.49270.49910.52190.53430.53955000.46000.4

5、6190.48480.49070.51280.52240.52726300.45470.45630.47480.48270.50120.51010.5161*： S -相邻两根电缆之间的中心距离,D -电缆外径S- The distance between the two adjacent cable center. D - The overall diameter of the cables.三芯电缆电感Inductance for three- core cable.导体标称截面 Nominal cross-section of conductor mm2电缆额定电压 Rated volt

6、age ofcable(kV)3.6/66166/108.7/108.7/1512/2018/2018/3026/35电感 Inductance A F/km250.35520.37970.4061350.33840.36130.38620.4064500.32110.34230.36550.38450.43960.4679700.30400.32320.34450.36200.41450.4427950.29150.30920.32900.34540.39560.42081200.28260.29920.31780.33920.37990.40191500.27420.28970.30710

7、.32170.36420.38621850.26720.28170.30090.31450.34850.37372400.26080.27260.29040.30300.33600.36113000.25760.26510.28170.29350.32660.34854000.25160.25640.27140.28220.30140.32665000.24800.25030.26410.27426300.24210.2442金属屏蔽层的允许摄大短路电流Max.permissible short - circuit current for metallicscreen单芯电缆Single 一

8、core cdble导体标称截面 Nominal cross-section of conductor mm2电缆额定电压 Rated voltage of cable(kV)3.6/66/66/108.7/10&刀1512/2018/2018/3021/3526/35短路电流 InductanceAF/hn25107510831094351074108210921096501072108010911095128412861288701070107910901091128112851286951069107710861272128012841283120107?12661271127912如1

9、2821501067107612651270127812791282185106412511264126712751279127924012411250126212661274127612783001239124612611265127112751277400124012451256126012701272127450012431244125312571266127212736301236123812521253126510701270三芯电缆Three - core cable导体标称截面 Nominal cross-section of conductor mm2电缆额定电压 Rated

10、voltage of cable(kV)3.6/66/66/108.7/108.7/1512/2018/3021/3526/35电感 Inductance A F/km252958295829582958295830313031352958295829582958303130313031502958295829582958303130313031702958295829582958303130313031952958295829583031303130313031120295829582958303130313031303115029582958303130313031303130311852

11、958295830313031303130313031240303130313031303130313031303130030313031303130313031303130314003031303130313031303130313031500303130313031303163030313031电缆敷设运行条件电缆导体的长期Max. continous operating temperature of the cable con杲高工作温度doctor 909环境空气温度Ambient air temperature 409土壤温度Soil temperature 2CPC土壤热阻系数Th

12、ermal resistivi ty of soil 1.0V.m/W埋设深度Depth of laying 08m仅考虑一个回路Single circuit parallel laid单芯电缆为水平敷设，间距为一个电缆外径Single 一 core cable is parallel laid . Adjacent space is equivalent to the diameter of the cable .不同土壤逞度下的载流量修正系数 Current rating factors for variation in soil temperatuie土壤温度工 Soil tempera

13、ture15202530354045系数Rating factors1.071.041.00.960.920.870.83不同土壤热阴系数的载流量修正系数Cunent rating factors for vahation in thermalresistivity of the soil土壤热阻系数 Themud resistivity of soil S/W1.01.21.52.02.53.03.5三芯电缆Three 一 core cable1.00.9430.8770.7920.7360.6750.641单芯电缆Single 一 core cable1.00.9340.8500.7480

14、.6920.6350.598不同环境温度下的载;流星修正系数Current rating factors for variation in ambient airtemperature环境空气温度 Air temperature15202530354045系数Rating factois1.071.041.00.960.920.870.83空气中多根电缆并列敷设时的载流量修正系数Cuirent rating factors for parallel laidmulti - cables m air电缆根数 Number of cables排列ArrangementS=DS=2DS=3D1（国）1.001.001.002（国）0.850.951.003（国）0.800.951.004（国）0.700.900.955（图）0.700.900.956（图）0.600.900.95注：D电缆外径，S相邻电缆之间的中心距离Note: d - The overall diameter of the cable, S - The distance between the adjacent cable center.选择导线：1.机械强度，2.安全过流，3.末端电压损失，4.有功损耗，5.满足发热等宗合考 虑。如果选择电缆，因为地埋，应首先考虑满足发热要求；通常铜芯电缆按经济电