矩形截面母线载流量表.doc

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1、矩形截面母线在+70℃时的载流量表(一)尺寸单片LMY铝母线载流量（安）单片TMY铜母线载流量（安）宽×厚交流直流交流直流(毫米)25℃30℃35℃25℃30℃35℃25℃30℃35℃25℃30℃35℃15×316515514516515514521019818521019818520×321520218921520218927525824227525824225×326524923326524923334032029934032029930×43653433213703483264754474184754474184

2、0×448045142248045142262558755062558755040×554050747554551247970065861670566262050×566562558567063059086080875787081776550×674069565174570065695589784096090284560×68708177658808277741125106099011451075101080×6115010801010117011001030148013901350151014201330100×61

3、4251840125514551370128018101700159018751760165060×81025965902104097791513201240116013451265118580×8132012401160135512741193169015901490175516501545100×8162515301430169015901488208019551830218020501920120×819001785167020401920179524002255211026002440229060×101155

4、1085101511801110104014751386130015251433134280×10148013901305154014501355190017851670199018701750100×10182017101600191018001680231021702030247023202175120×10207019451820230021602020265024902330295027702600矩形截面母线在+70℃时的载流量表(二)尺寸LMY铝母线载流量（安）TMY铜母线载流量（安）宽×厚交流(每相)直流

5、(每极)交流(每相)直流(每极)(毫米)2片3片4片2片3片4片2片3片4片2片3片4片60×613501720-15551940-17402240-19902495-80×616302100-20552460-21102720-26303220-100×619352500-25153040-24703170-32453940-60×816802180-18402330-21602790-24853020-80×820402620-24002975-26203370-30953850-100×823903050-294

6、53620-30603930-38104690-120×826503380-33504250-34004340-44005600-60×1020102650-21102720-25603300-27253530-80×1024103100-27352440-31003990-35104450-100×10286036504150335041605650361046505300432553857250120×10320041004650390018606500410052005900500062508350注:1.表中数

7、据是指当环境温度为25℃时的载流量,不同环境温度时的校正系数见下表;2.导体扁放置时,当导体宽度在60毫米以下时,载流量按表列数值减少5%,当宽度在60毫米以上时,应减少8%。环境温度变化时载流量校正系数表环境温度℃载流量校正系数线芯工作温度℃+　51015202530354045　+801.171.131.091.0410.9540.9050.8530.798　+701.201.151.111.0510.940.880.810.74　+651.221.171.121.0610.9350.8650.7910.707　+

8、601.251.21.131.0710.9260.8450.760.655　+501.341.261.181.0910.8950.7750.7330.447　*原表数据大部分摘自吕光大主编的"建筑电气安装工程图集——设计.施工.材料"第一集,第二版.其中部分欠缺数据为上传者根据其它出版资料补充的。