推荐回答（5个）
纯铜代号用汉语拼音字母“T”加顺序号来表示，随顺序号的增大，(CuAg)的含量减少，通常铜排共有T1、T2、T3三种代号。(Cu+Ag)的质量分数分别为不小于99.95%、99.90%和99.70%。
由此可知，如果用T3代T2铜母排，由于铜含量的关系，加工的机械性能不仅会受到影响，其载流量会有所下降。
用T3 铜排的关键问题是随含铜率减小，通过电流后发热会上升。尤其是大电流时，因为发热量与电流平方成正比，可能会导致母线温度过高而加速氧化电阻增大导致铜排发热超温而损失一定的能量。考虑到投资成本，国内有些设备供货商在设备制造中，一般多采用T2铜排。
T1铜排的载流量：
规格 平放(A) 竖放(A)
15X3 162 171
20X3 214 225
25X3 271 285
30X3 366 385
40X4 484 510
40X5 551 580
50X5 669 705
50X6 735 775
60X6 873 920
60X8 1016 1070
60X10 1133 1195
80X6 1110 1205
80X8 1260 1370
80X10 1417 1540
100X6 1356 1475
100X8 1546 1685
100X10 1720 1870
120X8 1800 1955
120X10 1996 2170
双排
2(60X6) 1340 1410
2(60X8) 1660 1750
2(60X10) 1985 2090
2(80X6) 1580 1720
2(80X8) 1950 2120
2(100X6) 1855 2015
2(80X10) 2345 2550
2(100X8) 2290 2490
2(100X10) 2735 2970
2(120X8) 2550 2770
2(120X10) 3090 3360
单条铜母排载流量= 宽度(mm) X 厚度系数 ;
双母排载流量= 宽度(mm) X 厚度系数 X 1.5(经验系数) ;
铜排和铝排也可以按平方数来,通常铜应该按5-8A/平方,铝应该按3-5A/平方 ;
常用铜排的载流量计算方法：
40℃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]
单排载流量=（8.5+排厚）排宽 这只是个快速算法 具体参数要查表
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