国标铜排载流量

铜排/电线载流量表简单估算法：1 .单条铜母排载流量=宽度(mm) x厚度系数2 .双母排载流量=宽度(mm) x厚度系数x 1.5(经验系数)3 .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:1.铜排【40C】时铜排载流量=排宽(mm) x厚度系数厚度（mm）1层铜排系数2层铜排系数3层铜排系数4层铜排系数铜排25 C系数铝排40 C系数122031.64049.01.180.33101828.43644.181612.63239.261422.12834.341219.02429.4备注：不建议采用4层铜排，改由异形母排替代2.例如铜排为100mm x 10mm,要求环境温度25 C,计算如下:载流量=100mm x 18（1 层系数）x 1.18（25 C 系数）=2,124A常用铜排的尺寸及载流量表矩形铜排母排截面25 C35 C40 C平放（A）竖放（A）平放（A）竖放（A）平放（A）竖放（A）15X320021017618516217120X328127523324521422525X332334028530027128630 X445147539441536638540x459362552255048451040x566570058855155158050x581686072176066970550x690695579781073577560x61069112594099087392060x812511320110111601016107060x1013951475123012961133119580x613601480119513001110120580x815531690136114801260137080x10174719001531166514171540100x6166518101557159213561475100x8191120801674182015461685矩形铝排母排截面25 C35 C40 C平放（A）竖放（A）平放（A）竖放（A）平放（A）竖放（A）15X315616513814512713420X320421518019016617525X325226521923020421530 X434736530932528530040x445648040442537539540x551854045247541844050x563266555658551854550x670374061765057060060x682687073177068071560x8975102585590078883060x1011001155960101089093580x610501150930101086093580x81215132010501155985107080x10136014801190129511051200100x6131014251160126010701160100x8149516261310142612101315铜导线载流量（35 C）截回(mm 2)载流量（A）1101.5132.517423630104516852511035136501707021695263精品资料Welcome ToDownload !欢迎您的下载，资料仅供参考！