常用导线负载表

常用绝缘电线长期连续负荷下的允许载流量1·BV、BLV、BVR型单芯电线单根敷设载流量(在空气中敷设)导线最高允许工作温度65℃环境温度25℃导线截面长期连续负荷允许载流量(安)相应电缆表面温度导线截面长期连续负荷允许截流量相应电缆表面温度(平方毫米)铜芯铝芯(℃)(平方毫米)铜芯铝芯(℃)O．751.01.52.5461016161924324255751051825324259806060606060606060253550709512015018513817021526532537543049010513016520525028532538060606060606060602·RV、RVV、RVB、RVS、RFB、RFS、BVV、BLVV型塑料软线和护套线单根敷设载流量导线截面长期连续负荷允许载流量(安)一芯二芯三芯(平方毫米)铜芯铝芯铜芯铝芯铜芯铝芯0.120.20.3O．40.5O．751.01.522.54610579ll12.51619，2428’324255752534435045.578.59.512.5151922263647652026335l34567911121720263252162225403．BV、BLV型单芯电线穿铁管敷设载流量导线最高允许工作温度65℃周围环境温度25℃长期连续负荷允许载流量(安)导线截面穿二根穿三根穿四根(平方毫米)铜芯铝芯铜芯铝芯铜芯铝芯1.01.52.54610162535507095120150185141926354765821071331652052502903303801520273549638010012515519022025028513172431415773951151461832252603003401318243244567090110143170195225255ll1622283750658510513016520023026530012152228385065801001271521722002304．BV、BLV型单芯电线穿塑料管敷设载流量导线最高允许工作温度65'C周围环境温度25C长期连续负荷允许载流量(安)导线截面穿二根穿三根穿四根(平方毫米)铜芯铝芯铜芯铝芯铜芯铝芯1.01.52.54610162535507095120150185121624314l5672951201501852302703053551318243142557390114145175200230265111521283649658510513216720524027531011.5162227384965801021301581802072351013192532445775931171481852152502801014192533445770901151401601852125．绝缘电线穿铁管或塑料管的管线配合参考表导线截面管子尺寸(毫米)黑铁管和钢管硬塑料管(平方毫米)穿二根穿三根穿四根穿二根穿三根穿四根1．O1.52.546101625355070951201501515151520252532404040505050151520202025324040505070707015202025。25323240505050708080151515152025253240404050505015151520202532404050507070701515，202525323240505050708080注:管线配合的原则为管内电线的总面积(包括外皮)应不超过管路内径面积的40％。