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1、国标铜排载流量表常用铜排的载流量计算方法:40c时铜排载流量二排宽*厚度系数厚度mm1 12108654系数201816141312双层铜排40 C=1.56 -1.583层铜排40 C尸2单层铜排4层铜排40 C尸单层铜排*2.45(最好用异形母排替代)铜排40 C =铜排25 C *0.85例如求TMY100*10t流量为:单层:100*18=1800(A)查手册为 1860A;双层:2(TMY100*10)的载流量为:1860*1.58=2940(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
2、手册数据相当接近。常用铜排的尺寸及载流量表一、 矩形铜排铜母排截面35 c25 C40 C平放(A)竖放 (A)平放(A)竖放(A)平放(A)竖放(A)15X317618520021020X323324526127525X328530032334030X439441545147540X440442552255040X545247555158850X555658572176050X661765079784060X673177094099060X88589001101116060 X 1096010101230129580X693010101195130080X810601155136114808
3、0X 101190129515311665100X61160126015571592100X81310142516741850100X 101470159518652025120X81530167519402110120X 1016851830215223402(60 X 6)11261185145215302 (60 X 8)14601480150316002(60X10)16801170214022502(80 X 6)13201433170518552(80 X 8)16511795211725152(80X10)19502120257527352(100X6)15641700200021702(100X8)19302100247026902(100 X 10)23202500293531852(120X8)21402330275029952(120 X 10)2615284033303620铜导线载流量(35 )截面(mm 211.52.54610162535507095载流量(A)10131723304585110136170216263