摘要
采用场路结合算法,编制了电缆排管敷设温度场和载流量通用计算程序。程序计算结果与模拟试验以及现场试验结果吻合。结果表明,单回路电缆填充导热介质可提高载流量约5%~6%,在回路流过等电流时降低缆芯温度6~7℃。多回路电缆由于电缆间的互热效应,填充导热介质对提高载流量的效果显著减小。
A general computing program for cable conduit laying of temperature field and carrying capacity is written by mutually related field-circuit algorithm.The result of the program tallies with that of simulation experiment and field investigation.It is proved that heat-conducting medium of single-circuit cable can increase carrying capacity by 5%~6% and that of multi-circuit cable greatly reduces carrying capacity due to thermal effect among cables.
出处
《黑龙江电力》
CAS
2010年第4期262-264,277,共4页
Heilongjiang Electric Power
关键词
电缆
有限容积法
预埋管
导热介质
温度场
载流量
cable
finite volume method
embed pipe
heat-conducting medium
temperature field
carrying capacity
