电缆载流晕计算原理电缆载流量环境电缆结构●敷设方式●材料●周边电缆影●截面积响●导体型式损耗发热●缆芯●金属护套●铠装:混凝土压顶 25010060120240,240140图例：CO>20+100250混凝土压顶220kV电缆和接头(马110V电缆(320A)远期500kV电缆220kV电缆3电缆(20A)特求电缆 500kV电缆接头深限1140230 230 230 230 230 230 140500kV杨行-虹杨I线500kV杨行-虹杨I线1660>600叶混凝土垫层碎石或混凝土垫层3500空气中不受日光照射的交流电缆IEC-60287电流绝缘介损电缆铠装损耗相对于所有导体总损耗的比率导体温升△θ =(IR+0.5Wa)· T+[IR(1+λ 1)+Wa]· nT+[IR(1+λ +λ 2)+Wa]· n(T+T)最高温度电缆金属套损耗相对于所有导体总损耗的比率热阻={Rπ +nR+205+nKC++2X5,+z)下导体交流电阻空气中不受日光照射的交流电缆T41=(.-7:+nR-4+21057+1KC+3+Z×)+)T-一根导体和金属套之间单位长度热阻(K· m/W)T3T-金属套和铠装之间内衬层单位长度热阻(Km/W)T2外护套表面T-电缆外护层单位长度热阻(K· m/W)T1T-电缆表面和周围介质之间单位长度热阻(K· m/W)缆芯铠装金属护套 Cabte dstgn dataFle Ed MeCpianeLiet ef aablen: 10141000KCMILCULPE UNCERGROUNDCable selectedNumber of ConductorsCabie type:「 OTHERand Cable TypeSnieoz nguIs1ion D5,5creenr sneatnzsneatn Renr oncwTe Deaangr armour servngz2cierYYaN0YYYaNoNoSpeed bar to· Conductoreopper,compressedenable/ disableD=28.7mm· Conductor shieldpossible layersIh-1.3.D=31.3mmInsulatien.XLPE funfilled)Th-11.4.D-54.1mm· Insu, sceen.semi-conductingLinks to correspondingTh=0.76.D=55.63mmdata dialog boxesConcentric wires,copperin-2.05,5-5.73mm wiio-30· Armour beddina. unknow materialTh-4.04.D-67.82 mm· Amour, unknow materialData missingh-0DD=67.82mmWires4 hereConductor Cross-· Overallcable diameter-67.82 mmSectionai AreaData missing forthose layersCable Rated VoltageVolage-44.0kV Cond. area-507.0 mm2No comment for ths cable Conductor Conductor shieldInsulation Insulation screen□ Sheath Sheath reinforcing material口Armour servingJacketConductor data◎Cable design dataXLayers:File Edt View Options Conductor回昌 List o...
