CAJ | 학술논문

根据系统规划及运行的需求，当架空输电线路因导线截面过小而无法满足系统输送容量的要求时，需对已建成线路进行增容改造。根据系统网架结构、原有线路回路数、导线截面、铁塔基础运行状况、现有线路通道现状、走廊附近敏感点分布情况以及线路增容需求，在线路增容改造项目方案选择过程中，一般可选择更换增容导线、线路拆除重建两种建设模式。文章以220 kV众秋4 C53/4 C54线增容改造工程为例，对增容改造项目建设方案的敏感因素进行简要梳理，并从工程实践的角度对输电线路增容改造工程建设中可能存在的问题进行思考。
근거계통규화급운행적수구，당가공수전선로인도선절면과소이무법만족계통수송용량적요구시，수대이건성선로진행증용개조。근거계통망가결구、원유선로회로수、도선절면、철탑기출운행상황、현유선로통도현상、주랑부근민감점분포정황이급선로증용수구，재선로증용개조항목방안선택과정중，일반가선택경환증용도선、선로탁제중건량충건설모식。문장이220 kV음추4 C53/4 C54선증용개조공정위례，대증용개조항목건설방안적민감인소진행간요소리，병종공정실천적각도대수전선로증용개조공정건설중가능존재적문제진행사고。
According to the system planning and operation demand, when the wire section of overhead transmission line is too small to meet the requirements of the transmission capacity of the system, the existing lines need to be made a capacity expansion reform. According to the space truss structure of the system, the original loop number, the wire section, the tower foundation running status, the existing line running status, the distribution status of sensitive points of transmission line corridor and the demand of capacity expansion, in the choice of capacity expansion reform plan, usually the two construction models including replacing the capacity expansion wire and line demolition and reconstruction can be chose. This paper takes the 220kV Zhong-qiu 4C53/4C54 line capacity expansion reform project as an example, reviews the sensitive factors, and describes the thinking of possible problems in the engineering construc-tion of capacity expansion reform from the view of engineering practice.