广东电网防雷现状分析及建议

对广东线路防雷现状进行分析,阐述落雷密度与雷击跳闸率的相关性,并根据线路反击、绕击跳闸比例,雷击跳闸杆塔的地形、接地电阻、雷电流幅值、地线保护角、绝缘子类型等运行数据分析线路雷击跳闸特点,总结广东线路防雷基本面和存在的问题,主张贯彻综合防雷改造和差异化防雷策略。

Analysis on the Lightning Pro-tection Status of Guangdong Power Grid and Correlative Ad-vises

Analyzing the lightning protection status of Guangdong Power Grid, this paper discusses the correlation of lightning trip-out rate to ground flash density. The light-ning trip-out characteris-tics are analyzed based on the operational data such as the proportion of light-ning back striking and shielding failure trip-out, corridor landform, grounding resistance of iron tower, lightning cur-rent magnitude, grounding wire protecting angle, and insulator types. Finally, the layout and problem of the lightning protection of Guangdong transmission line are summarized, and it is proposed to follow out the lightning protec-tion strategy of integrata-tive reform and differentia treatment.