❶ (ZR-YJV-50*4+1*25)啥意思???① ZR: 阻燃yjv::交联聚乙烯绝缘聚氯乙烯护套电力电缆50*4:四芯截面50mm21*25:地线截面25mm2 ② 这个是电缆的型号 ZR 阻燃的意思 YJV 是交联电缆 4*50+1*25 就是由 4根50平方+1根25平方的5芯电缆 ③ ov
American Wire Gauge Conductor Size TableAmerican wire gauge (AWG) is a standardized wire gauge system for the diameters of round, solid, nonferrous, electrically conducting wire. The larger the AWG nu