母线载流量及参数说明

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1、矩形母线载流量计算方法:40 C时铜排载流量=排宽*厚度系数排宽(mm);厚度系数为：母排12厚时为20;10厚时为18;依次为:12-20, 10-18，8-16，6-14，5-13，4-12双层铜排40 C =1.56-1.58单层铜排40 C (根据截面大小定)3层铜排40 C =2单层铜排40 C 4层铜排40 C =单层铜排40 C *2.5铜排40 C =铜排25 C *0.85铝排40 C =铜排40 C /1.3例如求TMY100*10载流量为：单层：100*18 = 1800 (A)查手册为 1860A；双层：2 (TMY100*10 )的载流量为：1800*1.58 = 2

2、940 (A);查手册为 2942A；三层：3 (TMY100*10 )的载流量为：1860*2 = 3720 (A)查手册为 3780A以上所有计算均精确到与手册数据相当接近矩形母线载流量表母线尺寸 宽X厚(mm)单片铝母排载流量(A)单片铜母排载流量(A)交流直流交流直流25 C30 C35 C40 C25 C30 C35 C40 C25 C30 C35 C40 C25 C30 C35 C40 C15 x 316515514513416515514513421019718517021019718517020 x 321520218917421520218917427525824222327

3、525824222325 x 326524923321526524923321534032029927634032029927630 x 436534332129637034832630047544641838547544641838540 x 448045142238948045142238962558755050662558755050640 x 554050747543854551248044670065961556770566462057150 x 566562558553967063059054386080975669787081876570550 x 674069565160074

4、570065560495589884077496090284577860 x 68708187657058808277757131125105699091211451079101092860 x 8102596590283110409779158441320124011601070134512651185109060x 101155108510169361180111010409561475138813001195152514321340123580 x 61150108010109321170110010309501480139013001200151014201330122580 x 81

5、3201240116010701355127411921100169015901490137017 5516501545142080 x 813201240116010701355127411921100169015901490137017 5516501545142080 x 10母线尺寸(mm)60 x 660 x 860 x 1080 x 680 x 880 x 10100 x 8100 x 10120 x 1060 x 660 x 860 x 1080 x 61480190020701300168119861620201023502340275132001718217025801390

6、1785195013001670182012001540168015402040230014501795191821602片铝母排载流量（A）135517 95202012501655186540 C19002400265025 C178622552490167020211023301540194521501990260029501870244527702片铜母排载流量（A）30 C35 C40 C25 C17 502290259530 C35 C16102105239040 C127011841096156014631363126217101630152614131965187217 451

7、61615811891153419192268224926723011161820512493147317 62142917 89211320962508280613641632132316561957194023222598183117311613149421302032189417 542420233821792013208520332350267328713250385019851933225825732771315236703片铝母排载流量（A）15081912232418501802210423982582293834201713166819482221239127203166139

8、61770215119101825170115752495207525653017297934804054219024092245207826642564239022121985185017132560247423062135246529172879339738582108229727182683316635952127251724842931332930103400368041554916291233033585407047053片铜母排载流量（A）196418192450234723122710219225592043238518922208275833782625310524672265

9、3020284228942679353033212714307833413793438521882648309625132850309335114060202624522866211219761841170524902315215719972700255923852208320030302824261436123434320129644280391436483378455743754078377652345067472243724100385835953329475045734262394649904893456042226180588154815075管母线载流量:（湖北兴和湖北兴和电力新材

10、料股份有限公司提供 ） K3I9 Ampacity ( A ) 环ttSA Ambient temperature ( 20T )材A3A21CLF21)6063G(6Dfi3)LDREUR056Z63S塔*升+70K+70K+6QK+70K+0OK+70K+SOK13O/U6M603S20341042U44104630伽130/1W398045004M511刃15M215M75762ewfl/neW17Q/1M44715213W77幽691066307CWe17时ISA471D20me630B7719Q71C07480O2M/1W56007906M26S33466606540砌却661241

11、U翊G9M0$17710543妙11014?胸104101觸11663200/256103?411傑11250119601193013161L3&90151141460C16330157173014320/2W145601W4160601?47S16732IBM管型母线型号知识：1. 3A21 （LF21）：铝锰合金管母线，为管母线初始阶段产品，现在较少使用2. 6063（ LD31）：铝镁合金管母线，适合高热、高寒及地震多发区及多种条件3. LDRE :稀土合金管母线，适合湿度大、温度高、风力大，特别适合沿海地区6Z63 :耐热合金管母线管型母线应用技术参数1、合金牌号及化学成份：合金牌号化

12、 学 成 份 %备注MgSiFeCuMnReAl3A21 ( LF21)0.050.600.700.201.01.6余量GB/T6063( LD31)0.45 0.90.2 0.60.350.10.1余量LDRE0.45 0.90.2 0.60.3 0.50.1 0.20.10 0.20余量Q/SDG6063G0.6 0.90.45 0.90.350.10.1余量2、合金材料物理性能：性 jf能合金牌号3A21 (LF21)6063 (LD 31)LDRE6063G密度g/cm3 (20 C)2.732.722.742.76熔点C643654616654616654616654导电系数卡/C

13、cms(25C)0.370.50.50.5导电率国际标准铜%405555.55620 C电阻温度系数1/C0.00420.00420.00320.0042温度线膨胀系数1/ C( 20-100 C)23.2 X 10-6-623.4X 10-623.9X 10-623.4 X 10弹性模量EN/mm247.1 X 1046.9X 1047.0X 1047.0 X 103、供应状态:合金牌号状态力学性能备 注2cr bN/mm2c 0.2 N/mmS %3A21 ( LF21)Y 137一一GB/T6063 (LD 31)Y 155 145一GB/TT10 176 155一T6 196 175

14、4LDREY 165 150一Q/SDGT10 185 165一T6 206 180 46063GT10 185 165一Q/SDGT6 206 180一4、外径尺寸壁厚、长度名称外径mm壁厚mm长度mm4.05.06.07.08.09.01012 6080VVV80150VVVVV150200VVVVV200250VVVVV 60 8080150150200200250允许偏差 mm 0.45 0.6 0.7 16、壁厚及允许偏差:名称壁厚mm3.03.54.04.55.05.0 8.0 8.0 12允许偏差 mm 0.30 0.35 0.40 0.45 0.5 0.8 1.07、管母线载流

15、量(1) 3A21( LF 21)管母线的载流量:1其80/72100/90120/110130/116150/136170/154200/184温度、温10C10C10C11C12C12C13 C+70K1320181021803120398044605350+80K1470208024503350432048205760(2 )、6063 ( LD31 )管母线的载流量温室温100/90120/110130/116150/136170/154200/180250/23013C12 C12C11 C12C26 C26 C+70K2800342040104950595079008500+80K

16、3100369042005500650084209010(3) LDRE管母线的载流量:100/90120/110130/116150/136170/154200/180250/230温度温12C13C12C11 C11 C25 C26 C+70K3200379043905330654083108860+80K3470404046105870689088409520(3) 6063G管母线的载流量:100/90120/110130/116150/136170/154200/180250/230温度、室温18C13C12C11 C11 C25 C12.5 C+70K2400379043905330654083108860+80K2540404046105870689088409800