| 预埋管内填充导热介质提高电缆载流量 |
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| 引用本文： | 王丽娜. 预埋管内填充导热介质提高电缆载流量[J]. 黑龙江电力, 2010, 32(4): 262-264,277 |
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| 作者姓名： | 王丽娜 |
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| 作者单位： | 东北电力大学电气工程学院,吉林吉林,132012 |
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| 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。
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| 关 键 词： | 电缆 有限容积法 预埋管 导热介质 温度场 载流量 |
How to increase cable carrying capacity of heat-conducting medium in embed pipe |
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| WANG Lina. How to increase cable carrying capacity of heat-conducting medium in embed pipe[J]. Heilongjiang Electric Power, 2010, 32(4): 262-264,277 |
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| Authors: | WANG Lina |
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| Affiliation: | WANG Lina(College of Electric Engineering,Northeast Dianli University,Jilin 132012,China) |
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| Abstract: | 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. |
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| Keywords: | cable finite volume method embed pipe heat-conducting medium temperature field carrying capacity |
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