作为报酬，奉献一篇同类**

工程需要，需要换算某现场的线路上的有功和无功损耗，线路是66KV的，大约4.92公里，导线型号为LGJ240，希望有高手指点如何换算或者将公式给出，谢谢。<br /><br /><br />LGJ是钢芯铝绞线的符号，其中L是铝线的简称，G是钢芯的简称，J是绞线的简称；&nbsp;<br />240/40是指导线的标称截面是：铝240平方毫米，钢40平方毫米；&nbsp;<br />LGJ-240/40导线的结构为铝26根，直径3.42平方毫米，钢7根，直径2.66平方毫米；&nbsp;<br />铝的计算截面是238.85平方毫米，钢的计算截面是38.90平方毫米，总计算截面是277.75平方毫米；&nbsp;<br />导线外径21.66毫米；&nbsp;<br />导线直流电阻不大于&nbsp;0.1209Ω/km；&nbsp;<br />额定抗拉力83370N（牛顿）；&nbsp;<br />单位质量&nbsp;964.3kg/km；&nbsp;<br />制造长度&nbsp;2000米；

  

  

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或者推荐一本资料看看，我在网上搜了很久，也搜不到有价值的资料。

刚才回帖时没有看到您已经发了帖子。

作为报酬，奉献一篇同类文章，并请教，66KV架空线路的相间距离、对地距离，国标方面是如何要求的？当然如果能把各类高压级别的国标指标都给出来更是感激不尽。 <br /> 相关链接:<a href='http://bbs.21ic.com/upfiles/img/20095/2009528111450789.pdf'>http://bbs.21ic.com/upfiles/img/20095/2009528111450789.pdf</a>

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