矩形铜排铜载流量选择一览表

1、矩形铜导体长期允许载流量（单位：A）导体尺寸h*b(mm*mm单条双条三条四条平放竖放平放竖放平放竖放平放竖放15*320021020*326127525*332334030*445147540*459362540*566570050*581686050*690695560*610691125165017402060224060*812511320205021602565279060*1013951475243025603135330080*613601480194021102500272080*815531690241026203100337080*101747190028503100367

2、03990100*6166518102270247029203170100*8191120802810306036103930100*1021212310332036104280465048755300120*8221024003130340039954340120*1024352650377041004780520054305900载流量系按最高允许温度+70C,基准环境温度+25C,无风，无日照条件计算的上表导体尺寸中，h为宽度，b为厚度。上表当导体为四条时，平放，竖放时第二三片间距皆为50mm.表1矩形母线参数表序号项目单位标准参数值硬铜硬铝1导体密度g/cm32抗拉极限强度MPa厚度以

3、下300<120厚度>270厚度7mm>260厚度7mn上>250320c时电阻率Q-m4熔点C10836585每1C温度电阻系数Q-m6延伸率%637轧制截面误差%<1<38长度偏差mm<109壁厚偏差mm<110弯曲度/弯曲半径按GBJ149-199硼定母线尺寸宽*厚（mm铝交流直流25C30C40C25C30C40C15x316515513416515513420x321520217421520217425x326524921526524921530x436534329637034830040x448045138948045138940x5

4、54050743854551244650x566562553967063054350x674069560074570060460x687081870588082771380x61025108093211701100950100x611501340115514551368118060x81155965831104097784480x8132012401070135512741100100x8142515301315169015901370120x814801785154020401918165560x10162510859361180111095680x101820139012001540145

5、01250铝矩形母线（竖放或平放）下，长期容许的载流量（见表单片母线的载流量（A）W70C表2-12)100X10120x101710194514751680191023001795216015501865铜矩形母线竖放或平放下，长期容许的载流量单片母线的载流量（A）9c=70C表2-2母线尺寸宽*厚（mm铜交流直流25C30C40C25C30C40C15x321019717021019717020x327525822327525822325x334032027634032027630x447544638547544638540x462558750662558750640x5700659567

6、70566457150x586080969787081870550x695589877496090277860x6112510569121145107992880x6148013901200151014201225100x618101700147018751760152060x813201240107013451265109080x8169015901370175516501420100x8208019551685218020501770120x824002255194526002445210560x1014751388119515251432123580x101900178615401990

710231021701870247023202000120x1026502490215029502770239023片组合涂漆母线的载流量(Ac=c=70C6a=25C2-3母线尺寸宽*厚(mmx(mm)铝铜交流直流交流直流2片3片2片3片2片3片2片3片40x4-855-1090-40x5-965-1250-50x5-1180-1525-50x6-1315-1700-60x61350172015551940174022401990249580x616302100205524602110272026303220100x1935250025153040247031703245394061680218018402330216027902485302060x82040262024002975262033703095385080x823903050294536203060393038104690100x26503380335042503400434044005600820102650211027202560330027253530120x2410310027353440310039