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目的探讨大型输变电工程周边环境电磁辐射污染状况。方法对18项输变电工程周围50m范围内民房处电磁辐射强度进行检测,检测方法参照HJ/T24-1998和GB/T7349-2002。结果随着电压等级的升高,工频电磁场、无线电干扰值也随着升高,110、220、500KV输变电工程周边民房处工频电场强度最大值分别为555、858、3 572V/m,工频磁场接触强度最大值分别为0.344、1.108、6.218μT,均低于相关标准限值,无线电干扰值均小于40dB。结论周边居民电磁辐射实际接触强度很小,人们应消除对输变电工程“电磁辐射恐惧”心理。
Objective To investigate the electromagnetic radiation pollution in the surrounding environment of large power transmission and transformation project. Methods The intensity of electromagnetic radiation in houses within 50m around 18 power transmission and transformation projects was measured. The detection methods refer to HJ / T24-1998 and GB / T7349-2002. As a result, with the increase of voltage level, the frequency electromagnetic field and the radio interference value also increased. The maximum electric field strength of houses around the 110,220,500KV power transmission project were 555,858,3 572V / m , The maximum contact frequency of the magnetic field were 0.344,1.108,6.218μT, respectively, lower than the relevant standard limits, radio interference values were less than 40dB. Conclusion The actual contact intensity of electromagnetic radiation around residents is very small, people should eliminate the “power of electromagnetic radiation” psychology.