辐射研究与辐射工艺学报2026，Vol.44Issue(4)：139-145,7.DOI:10.11889/j.1000-3436.2026-0029
西北地区750 kV变电站周边电磁环境暴露分析
Analysis of electromagnetic environment exposure around 750 kV substations in Northwest China
贠彦祺 1宋伟宏 1茜强 1毛洁 1蔡奥2
作者信息
- 1. 甘肃省核与辐射安全中心 兰州 730020
- 2. 酒泉市生态环境综合事务中心 酒泉 735000
- 折叠
摘要
Abstract
By conducting systematic monitoring and data collection on power frequency electric field strength and power frequency magnetic field strength outside over 60 operational 750 kV substations in Northwest China,this study established a representative measured dataset.Multivariate statistical analysis and comprehensive assessment show that the power frequency electric field strength at the substation boundaries ranges from 0.6 to 3 840.0 V/m,while the power frequency magnetic field strength varies from 0.014 to 24.330 μT.Both parameters comply with the public exposure control limits specified in the Mandatory national standard,which stipulates a limit of 4 000 V/m for power frequency electric field and 100 μT for power frequency magnetic field.Notably,the maximum measured electric field values approach the standard limit with a small safety margin,and the peak field strength generally appears at the boundary near the 750 kV outlet side.Therefore,the layout of incoming and outgoing lines and their spatial correlation with surrounding residential areas shall be comprehensively considered during site selection for 750 kV substations.The research results carry dual practical value.On the one hand,they can provide fundamental data support for implementing the pollutant discharge permit system for power transmission and transformation projects under the"Environmental Protection Law of the People's Republic of China".On the other hand,they offer scientific,reliable measured data and theoretical support for the planning,site selection,design optimization,operation&maintenance,and electromagnetic environment supervision of 750 kV EHV substations,thus improving the environmental compatibility and public acceptance of extra-high voltage substations.关键词
750 kV变电站/电磁环境/工频电场强度/工频磁感应强度Key words
750 kV substation/Electromagnetic environment/Power frequency electric field intensity/Power frequency magnetic field intensity分类
资源环境引用本文复制引用
贠彦祺,宋伟宏,茜强,毛洁,蔡奥..西北地区750 kV变电站周边电磁环境暴露分析[J].辐射研究与辐射工艺学报,2026,44(4):139-145,7.
