线径和母线便查表

1、.矩形母排允许载流量交流/直流)注：接触面不镀银或不搪锡：环境温度为C,最高工作温度为0C截面积mm重量kg/m允许载流量A)铜铝铜铝单根双根单根双根15*30.40.12170一一134-20*30.530.16223一一174-25*30.670.20277一一213-30*41.070.32385一一294/300-40*41.420.43506-/883386-/69340*51.780.54568/571-/1014438/442-/78250*52.220.68696/705-/1235538/543-/96650*62.670.81774/778-/1378600/604-/10

2、6560*63.20.97911/9271410/1413705/7131093/126080*64.271.31200/12231713/2130941/9471324/1670100*65.341.621468/15202000/20351155/11801570/203060*84.271.31070/10901755/2000830/8431365/149580*85.71.731370/14232123/25101070/11001655/1950100*87.122.161685/17652480/31001317/13701860/2390120*88.532.591945/21

3、042760/35701540/16532150/272060*105.341.621195/20352085/2205935/9561630/171580*107.122.161540/16122500/28501200/12501930/2250100*108.92.71863/20002930/35701475/15502320/2840120*1010.73.242144/23903320/40501680/18652600/3160主母排平放时，当母排宽度在mm及以下时按表中允许载流量数据满少母排宽 度在60mm以上时应相应减少%。二.当周围环境温度不低于0C,需加上校正系数。即实际

4、允许载流量为校正表数允许载流量，校正系数如下:环境温度C1520253035404550校正系数1.291.251.201.151.111.051.00.940.88一.矩形母排允许载流量交流/直流）注：接触面镀银或搪锡：环境温度为Q （铜）/35C （铝），最高工作温度为SC截面积mm重量kg/m允许载流量A）铜排铝排铜铝 -单根双根单根双根15*30.40.12205一一170-20*30.530.16270一一220-25*30.670.20330一一270-30*41.070.32465一一-40*41.420.43610-/1060495-/88040*51.780.54685/69

5、0-/1220555/560-/99550*52.220.68840/850-/1490685/690-/121550*62.670.81935/940-/1660765/770-/133560*63.20.971100/11201700/1950900/9101390/160580*64.271.31445/14752060/25701190/12001680/2070100*65.341.621770/18302410/31701470/15002000/209560*84.271.31290/13102110/24201055/10751730/189080*85.71.731650/1

6、7152560/30201360/13952100/2470100*87.122.162030/21303020/39901670/17402460/3040120*88.532.592340/25403320/43001960/21002730/345060*105.341.621440/14902500/26601190/12102070/217080*107.122.161855/19453030/34301520/15852480/2820100*108.92.72260/24203520/42251870/19602940/3450120*1010.73.243585/2880400

7、0/48902140/23703300/4000二.当周围环境温度不低于5C，需加上校正系数。即铝母排实际允许载流量为校正系数*表中允许载流量，校正系数如下:环境温度。C101520253035404550校正系数1.221.181.141.091.051.00.950.890.84二次电线截面积的选择橡皮绝缘铜芯电线、聚氯乙烯绝缘铜芯电线允许莪流量截面积mm2橡皮绝缘电线聚氯乙烯绝缘电线VR1171.5212.528438366504710736416959035155147501981857024622995298281120346324150406371185-426注：环境温度，最高工作温度为5C。一.环境温度校正系数环境温度C25303540455055校正系数1.161.081.00.910.820.710.58二BV-1