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电缆的结构尺寸Cable structure & size

电缆技术参数

Cable technical parameter

电缆载流量

Cable carrying capacity

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）必须充分、有效接地。本载流量是按 IEC 推荐公式计算的。GB/T 12706-2002 认为单芯特殊结构钢丝铠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。

Note: The copper-tape-screen and steel wire of single-core steel wire armorde power cable for AC system must be connected to earth well and effectively.The current

carrying capacity is calculated by formulas of IEC.It is advised in the new edition of GB/T 12706 that the current carrying capacity of steel wire armored power

cable with special structure is lower than that in IEC standard,so the cross-section should be enlarged appropriately.