重庆地区500kV变电站内工频电磁场分析

Analysis on Power Frequency Electric and Magnetic Fields within 500kV Substations in Chongqing Area

研究了重庆地区500 kV变电站内的工频电磁场分布及特点。针对重庆地区日益增多的500 kV高压变电站,研究了该类型变电站内工频电磁环境对职业暴露的影响,对重庆地区500 kV高压变电站内各区域和设备周围的工频电、磁场进行了细致测量并归纳总结了测量结果,对电磁场较强的重点区域进行了分析。根据测量得到的电磁场分布情况,从职业安全角度出发,提出了500 kV高压变电站内的安全生产应注意事项。在500 kV高压变电站的安全管理、新变电站的合理布局和设计、新设备的选型等方面提出了合理化建议,为电力企业实施绿色环保工程提供了科学依据。

The distributions and features of power frequency electromagnetic fields within 500kV substations in Chongqing area are studied. In view of gradually increasing of 500kV substations in Chongqing area, the impacts of power frequency electromagnetic environment within 500kV substations on professional exposure are researched. For this reason, the power frequency electric and magnetic fields in the regions within 500kV substations and in the locations around the power equipments are carefully measured and the measured results are generalized and summarized, and the special regions with higher electric and magnetic field intensity are deeply researched. According to the measured distributions of electromagnetic fields and from the standpoint of occupational safety, the matters needing attention for safety production within 500kV substations are pointed out. Several rationalization proposals concerning safety management of 500kV substations, reasonable disposition and design for new 500kV substations to be constructed and the selection of new substation equipments are suggested.