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1. 发明授权

KR100433302B1 송전선의 열내력 결정 방법 失效
标题翻译： 송전선의열내력결정방법
公开(公告)号：KR100433302B1
公开(公告)日：2004-05-27
申请号：KR1020017001454
申请日：2000-06-01
申请人： 도쿄 덴료쿠 홀딩스 가부시키가이샤
发明人： 기타무라사토시 , 이소자키마사노리 , 하지히로타카
IPC分类号： G01K7/00
CPC分类号： G01N3/18 , G01N3/08 , G01N2203/0222 , G01N2203/0278 , G01N2203/028 , H02G1/02
摘要： Samples of electric wire from an operational power transmission line are prepared and the samples are subjected to a heat history process at a plurality of temperatures to determine a correlation between electric wire temperature, heating time, and valuation basis of residual strength, followed by determining an operating temperature of the electric wire of the operational power transmission line based on the correlation. For determining the above correlation, it is preferred to first determine a relation between the valuation basis of residual strength and the plurality of temperatures, and then based on the result thereof determine each of constants A, B and C in "the heat history exp äA .T-B+C .ln (h)ü" so that the relation between said heat history exp äA .T-B+C .ln (h)ü and said valuation basis of residual strength becomes linear, where T represents electric wire temperature ( DEG C) and h represents heating time (hrs). The present method allows the thermal strength of power transmission lines to be determined more accurately according to conditions associated with such power transmission lines.
摘要翻译：准备来自运转用输电线路的电线样品，并在多个温度下对样品进行热历史处理，以确定电线温度，加热时间和剩余强度的评估基础之间的相关性，然后确定基于相关性来确定运转用输电线的电线的运转温度。为了确定上述相关性，优选首先确定剩余强度的评估基准与多个温度之间的关系，并且然后基于其结果确定常量A，B和C中的每一个在“热历史exp ＆auml; A .T-B + C .ln（h）＆uuml;“ 因此，所述热历史表达式A·T-B + C·ln（h）＆lt; 并且所述剩余强度的估算基础变成线性的，其中T表示电线温度（℃），h表示加热时间（小时）。本方法允许根据与这种输电线路相关的条件更精确地确定输电线路的热强度。

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