矩形母线技术规范

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1、技术规范书项目单位工程名称货物描述矩形母线,铜,4000A表1矩形母线参数表序号项目单位标准参数值投标人保证值备注硬铜硬铝1导体密度g/cm38.92.78.92.72抗拉极限强度MPa厚度1.25mm以下>300<120厚度1.25mm以下>300<120厚度1.25～3.28mm>270厚度1.25～3.28mm>270厚度3.53～7mm>260厚度3.53～7mm>260厚度7mm以上>250厚度7mm以上>250320℃时电阻率μΩ·m0.01720.02950.01720.02954熔点℃108365810836

2、585每1℃温度电阻系数Ω·m0.003820.00360.003820.00366延伸率%63637轧制截面误差%<1<3<1<38长度偏差mm<10<109壁厚偏差mm≤1≤110弯曲度/弯曲半径按GBJ149-1990规定弯曲半径按GBJ149-1990规定铝矩形母线（竖放或平放）下，长期容许的载流量（见表2）。单片母线的载流量（A）θc=70℃表2-1母线尺寸宽*厚（mm）铝交流直流25℃30℃40℃25℃30℃40℃15ⅹ320ⅹ325ⅹ330ⅹ440ⅹ440ⅹ550ⅹ550ⅹ660ⅹ680ⅹ6100ⅹ660ⅹ88

3、0ⅹ8100ⅹ8120ⅹ860ⅹ1080ⅹ10100ⅹ10120ⅹ1016521526536548054066574087010251150115513201425148016251820190020701552022493434515076256958181080134096512401530178510851390171019451341742152963894385396007059321155831107013151540936120014751680165215265370480545670745880117014

4、55104013551690204011801540191023001552022493484515126307008271100136897712741590191811101450179521601341742153003894465436047139501180844110013701655956125015501865铜矩形母线竖放或平放下，长期容许的载流量单片母线的载流量（A）θc=70℃表2-2母线尺寸宽*厚（mm）铜交流直流25℃30℃40℃25℃30℃40℃15ⅹ320ⅹ325ⅹ330ⅹ440ⅹ440ⅹ550

5、ⅹ550ⅹ660ⅹ680ⅹ6100ⅹ660ⅹ880ⅹ82102753404756257008609551125148018101320169019725832044658765980989810561390170012401590170223276385506567697774912120014701070137021027534047562570587096011451510187513451755197258320446587664818902107914201760126516501702232763855065717

6、057789281225152010901420100ⅹ8120ⅹ860ⅹ1080ⅹ10100ⅹ10120ⅹ102080240014751900231026501955225513881786217024901685194511951540187021502180260015251990247029502050244514321870232027701770210512351610200023902～3片组合涂漆母线的载流量（A）θc=70℃θa=25℃表2-3母线尺寸宽*厚（mm）铝铜交流直流交流直流2片3片2片3片2片3

7、片2片3片40ⅹ440ⅹ550ⅹ550ⅹ660ⅹ680ⅹ6100ⅹ660ⅹ880ⅹ8100ⅹ8120ⅹ860ⅹ1080ⅹ10100ⅹ10120ⅹ10----13501630193516802040239026502010241028603200----172021002500218026203050338026503100365041008559651180131515552055251518402400294533502110273533503900----194024603040233029753620425027203

8、44041604860----17402110247021602620306034002560310036104100----2240272031702790337039304340330039904650520010901250152517001990263032452485309538