kV～kV高壓電纜載流量表全要點

1、kVkV高壓電纜載流量表（全） 要點作者:日期:6kV35kV高壓電纜載流量電纜載瘋量 The Current canying capacity of cable M加炸A導體Conductor導體標稱截面 Nominal cross -section of conductor mm非皚裝型電纜Uivanwred卡豈裝型電纜Anwred單芯 Single-core二芯 Thiee-cor;二芯 Three-core衽空氣中Ihair直埋土壤中Bun&d在空氣中 In air直埋土壤中Bun&d在空氣中In air直埋土壤中Buried飆導體Copper conductor25165160135

2 205ISO160 1ISO165r i75150245225195210195205703052752452602452為95370330300305300300120430375345350345345150490425395390350憲51855604S0455 445445亦240665555540515525505300165煩61550妙565400S90725720660695645鋁導體 Alummum conductor2513012010511510511J535IM1451301401301coip cable.(S=2D)*導體標稱截面 No

3、minal cross-section of conductor mm2電纜額定電壓 Rated voltage of cable(kV)3.6/66166/108.7/108.7/1512/2018/2018/3021/3526/35電感 Inductance 從 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 -相鄰兩根電纜之間的中心距離,D -電纜外徑S- The distance between the two adjacent cable center. D - The overall diameter of the cables.三芯電纜電感Inductance for three- core cable.導體標稱截面 Nominal cross-section of conductor mm2電纜額定電壓 Rated volt

6、age ofcable(kV)3.6/66166/108.7/108.7/1512/2018/2018/3026/35電感 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金屬屏蔽層的允許攝大短路電流Max.permissible short - circuit current for metallicscreen單芯電纜Single 一

8、core cdble導體標稱截面 Nominal cross-section of conductor mm2電纜額定電壓 Rated voltage of cable(kV)3.6/66/66/108.7/10&刀1512/2018/2018/3021/3526/35短路電流 InductanceAF/hn25107510831094351074108210921096501072108010911095128412861288701070107910901091128112851286951069107710861272128012841283120107?12661271127912如1

9、2821501067107612651270127812791282185106412511264126712751279127924012411250126212661274127612783001239124612611265127112751277400124012451256126012701272127450012431244125312571266127212736301236123812521253126510701270三芯電纜Three - core cable導體標稱截面 Nominal cross-section of conductor mm2電纜額定電壓 Rated

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

11、958295830313031303130313031240303130313031303130313031303130030313031303130313031303130314003031303130313031303130313031500303130313031303163030313031電纜敷設(shè)運行條件電纜導體的長期Max. continous operating temperature of the cable con杲高工作溫度doctor 909環(huán)境空氣溫度Ambient air temperature 409土壤溫度Soil temperature 2CPC土壤熱阻系數(shù)Th

12、ermal resistivi ty of soil 1.0V.m/W埋設(shè)深度Depth of laying 08m僅考慮一個回路Single circuit parallel laid單芯電纜為水平敷設(shè)，間距為一個電纜外徑Single 一 core cable is parallel laid . Adjacent space is equivalent to the diameter of the cable .不同土壤逞度下的載流量修正系數(shù) Current rating factors for variation in soil temperatuie土壤溫度工 Soil tempera

13、ture15202530354045系數(shù)Rating factors1.071.041.00.960.920.870.83不同土壤熱陰系數(shù)的載流量修正系數(shù)Cunent rating factors for vahation in thermalresistivity of the soil土壤熱阻系數(shù) Themud resistivity of soil S/W1.01.21.52.02.53.03.5三芯電纜Three 一 core cable1.00.9430.8770.7920.7360.6750.641單芯電纜Single 一 core cable1.00.9340.8500.7480

14、.6920.6350.598不同環(huán)境溫度下的載;流星修正系數(shù)Current rating factors for variation in ambient airtemperature環(huán)境空氣溫度 Air temperature15202530354045系數(shù)Rating factois1.071.041.00.960.920.870.83空氣中多根電纜并列敷設(shè)時的載流量修正系數(shù)Cuirent rating factors for parallel laidmulti - cables m air電纜根數(shù) Number of cables排列ArrangementS=DS=2DS=3D1（國）1.001.001.002（國）0.850.951.003（國）0.800.951.004（國）0.700.900.955（圖）0.700.900.956（圖）0.600.900.95注：D電纜外徑，S相鄰電纜之間的中心距離Note: d - The overall diameter of the cable, S - The distance between the adjacent cable center.選擇導線：1.機械強度，2.安全過流，3.末端電壓損失，4.有功損耗，5.滿足發(fā)熱等宗合考 慮。如果選擇電纜，因為地埋，應(yīng)首先考慮滿足發(fā)熱要求；通常銅芯電纜按經(jīng)濟電