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                      銅排截面積的選擇如何確定

                      時間:2021-07-30

                        矩形母線載流量:

                        排寬(mm);厚度系數為:母排12厚時為20.5;10厚時為18.5;依次為:
                      [12-20.5,10-18.5,8-16.5,6-14.5,5-13.5,4-12.5]

                        雙層銅排[40℃]=1.56-1.58單層銅排[40℃](根據截面大小定)

                        4層銅排[40℃]=單層銅排[40℃]*2.45(不推薦此類選擇,最好用異形母排替代)

                        鋁排[40℃]= 銅排[40℃]/1.3

                        單層:100*18.5=1850(A)〔查手冊為1860A〕;

                        三層:3(TMY100*10)的載流量為:
                      1850*2=3700(A)〔查手冊為3780A〕

                        以上所有計算均精確到與手冊數據相當接近。


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