OPGW光纤复合架空地线接地运行方式研究

Research on Grounding Operation Mode of Optical Power Grounded Waveguide

对比分析了架空输电线路中光纤复合地线OPGW常用接地运行方式的特点,给出OPGW光缆在分段绝缘单点接地运行方式的工程实现方案,用全寿命周期法计算分析了220 kV和500 kV两种电压等级下,OPGW光缆在不同运行方式下的年成本费用及单公里指标,推荐OPGW光缆在500 kV及以上输电线路工程中采用分段绝缘、单点接地的运行方式。

The paper compares and analyzes the characteristics of grounding operation mode of OPGW in overhead transmission lines, presents the engineering realization scheme of OPGW optical cable in segmentedinsulated single point grounding operation mode, calculates and analyzes the annual costand single kilometer index of OPGW cable in 220 kV and 500 kV under different operation modes by using the full life cyclemethod. OPGW cable is recommended to adopt the operation mode of section insulation and single point grounding in 500 kV as well as the transmission lines.