摘要
IEC 60287为电缆的载流量计算提供了标准方法,但由于计算所涉及的边界条件的可选性及实际运行中电缆周围环境的复杂性等原因,计算结果和电缆的实际承载能力是否一致,成为电缆行业所关心的问题。文章对影响载流量计算结果的因素进行了分析,并通过110 kV 1×400 mm2交联聚乙烯(XLPE)电缆进行了载流量计算结果的试验验证。结果表明,按IEC 60287标准计算所得的载流量完全可以作为线路设计、电缆选型的重要依据。
A standard method for calculation of cable ampacity is given in IEC 60287. The option of the boundary conditions in the calculation and the complexity of the envirionment in which the cable is actually operating result in the doubt about the conformity of the calculated ampacity with the actual cable curreny-carrying capacity ; which is a problem of concer in the cable industry. In this paper, the factors affecting the results of ampacity calculation were analyzed. A test was carried out to verify the results of ampacity calculation on a 100 kV1×400 mm^2 XLPE cable. The resuhs showed that the ampacity calculated according to IEC 60287 can be used without any doubt as the base for line design and cable selection.
出处
《电线电缆》
2008年第5期25-27,共3页
Wire & Cable
