城市电网电缆载流量提升可行性研究

电力电缆线路是城市输电网中的主干部分，其载流量的准确计算起着至关重要的作用。本文阐述了常用载流量计算标准IEC 60287和IEC 60853，由于计算参数难以选择或过于保守，从而造成了电缆线路输送容量的很大浪费，分析得出载流量提升具有很大潜力。本文给出了载流量提升的三步走战略，展望了载流量提升的前景。

Feasibility Research on Cable Carrying Capacity Improvement in Urban Power Grid

Cable line is a major part in urban transmission network. The accuracy of calculating its capacity plays an important part. IEC 60287 and IEC 60853, capacity calculating standards are presented in this article. That it is difficult to select counting parameter or parameter is too conservative causes a huge waste of cable carrying capacity. There is possibility in capacity improvement. This article puts forward 3-step strategy and prospects for capacity improvement.