电缆导体的允许长期最高工作温度为70℃。
Max.permissible continuous operating temperature of conductor 70℃。
短路时(最长持续时间不超过5S)电缆导体的最高温度不超过:160℃。
Max.short-circuit temperature of the conductor shall not exceed:160℃。
敷设电缆时环境温度应不低于0℃。
The ambient temperature under installation shall not below 0℃。
电缆弯曲半径不小于电缆外径10倍。
The bending radius of a cable shall not be less than 10 times of the cable diameter。
电缆额定电压的选择voltage designation
电缆的额定电压应适合于电缆使用系统的运行状况，用UO／U(Um)KV表示。
Uo?电缆设计用的导体与屏蔽或金属套之间的额定工频电压；
U?电缆设计用的导体之间的额定工频电压；
Um?设备可承受的“最高系统电压”的最大值。
The rated voltage of the cable of a given application shall be suitable for the operating
Conditions in the system in which the cable is used，and is expressedin the form of u。/u(um)KV.
wher：
U?the rated power-frequency voltage between conductor and screen of metallic-sheath，for which the cable designed;
u-the rated power-frequency voltage between conductors，for which the cable designed；
um-the maximum value of the“highest system voltages”for which the equipment may be
operated．
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