输电线路金具的全寿命选型

针对传统金具大量使用铁磁材料引起运行过程中磁滞和涡流损耗的激增,在线路金具实际选型中提出的秉承全寿命周期设计理念在工程应用中受到极大关注。统筹考虑金具采购、安装和运输的经济费用、运行损耗费用、故障检修费用、使用寿命、安全可靠性、环境保护等,搭建了输电线路金具全寿命选型模型,并结合厂家调研数据和实际输电线路工程的设计条件进行了全过程综合性评价,推荐符合实际需求兼顾全寿命理念的线路金具型式,以提高线路工程资产总体经济效益和社会效益。

Life Cycle Type-selection for Electric Power Transmission Line Fittings

In view of the hysteresis and eddy energy loss surge caused by the extensive use of ferromagnetic materials in traditional fittings, a new life cycle design concept is proposed to optimize the manufacturing materials and structure of transmission line fittings. With consideration of the comprehensive economic costs of fittings, include the purchasing, transportation and installation cost, operating loss cost, troubleshooting cost, service life, safety reliability and environmental protection, a life cycle type-selection model is developed in this paper for power line fittings. Based on the collected data of fitting manufacturers, the proposed model is applied to a real transmission line project for comprehensive evaluation of fittings’ life cycle cost. According to the result, the fitting types that conform both the actual demand and life cycle design concept are recommended to improve the overall economic and social benefits of the transmission line projects.