执行标准 Execution standard
GB/T 12706-2008
适用范围Application
本产品适用于工频额定电压0.6/1kV及以下配电网或工业装置中固定敷设之中。
This product is suitable for power frequency rated voltage 0.6/1kv and below power distribution network or fixed installation in industrial equipment.
产品结构图 Structural chart
电缆型号、名称 Type and name
电缆载流量 Current Carrying Capacity of Cable
注:用于交流系统的单芯钢丝铠装电力电缆的屏蔽铜带及钢丝(含所有隔磁铜丝)充分、接地。本载流量是按EC推荐公式计算的(表中数值参考上海电缆研究所马国栋著《电线电统载流量》)。新版GB/T12706认为单芯结构钢丝继装电力电缆实际载流量比IEC推荐载流量大为降低,截面选择宜适当放大。
电缆敷设运行条件Operating Conditions for Cable Laying
在空气中敷设
1.单芯电缆平行敷设时中心距离:185mm/及以下为电缆直径的2倍;240mm/及以上为90mm.
2.周围环境空气温度:30℃.
3.导体的长期高工作温度:90℃.
In air
1.The center distance of single-core cable laying in parallel:185mm/below is twice the diameter of cable; 240mm/above is 90mm.
2.ambient air temperature:30C.
3.The longest working temperature of 3.conductor is 90C.
不同环境温度下载流量的修正系数:
Curent carying rating factors for different ambient air temperature
在空气中敷设
1.单芯电缆平行敷设时中心距离:185mm/及以下为电缆直径的2倍;240mm/及以上为90mm.
2.周围环境空气温度:30℃.
3.导体的长期高工作温度:90℃.
1.The center distance of single-core cable laying in parallel:185mm/below is twice the diameter of cable; 240mm/above is 90mm.
2.ambient air temperature:30C.
3.The longest working temperature of 3.conductor is 90 C.
不同环境温度下载流量的修正系数:
Curent carrying rating factors for different ambient air temperature