后者：外面线的额定电压作者: gamy 时间: 2012-2-8 10:28
同意楼上的说法作者: 十目右弓 时间: 2012-2-8 10:29
The rated voltage is expressed by the combination of two values Uo/U, expressed in volts:
Uo being the r.m.s. value between any insulated conductor and "earth" (metal covering of the cable or the surrounding medium);
U being the r.m.s. value between any two-phase conductors of a multicore cable or of a system of single-core cables.作者: ksxtye 时间: 2012-2-8 10:29
原文 :
前者：2C或3C 线的额定电压；
后者：外面线的额定电压
来自哪个标准的哪一款?作者: KFCJF 时间: 2012-2-8 10:29
同意此说话，大家就是要积极回答问题！作者: fangzi33 时间: 2012-2-8 10:29
Rated Voltage V (额定电压UO/U)
(UO :表任一绝缘导体和”地”(电缆的金属护层或周围介质)之间的电压有效值)
(U: 表多芯电缆或单芯电缆系统任何两相导体之间电压的有效值)