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目的通过对某水力发电企业工频电磁场的检测和评价,了解水力发电企业工频电磁场的分布规律及防护中存在的问题,为采取相应的对策提供依据。方法采用职业卫生现场调查和工频电磁场强度现场检测相结合的方法。结果该水力发电企业电磁场各检测点的强度有部分未达到国家职业卫生标准接触限值或行业标准接触限值要求,达标率分别为57.9%和89.5%。结论该水力发电企业工频电磁场强度对其工作人员的身体健康的影响有限,职业危害轻微。
Objective To detect and evaluate the power frequency electromagnetic field of a hydropower plant, and to understand the distribution rules of power frequency electromagnetic fields in hydropower plants and the problems in the protection, so as to provide the basis for the corresponding measures. Methods The method of combining occupational health field investigation and on-site detection of power frequency electromagnetic field strength was used. Results The strength of each test point of the electro-magnetic field of the hydropower plant did not meet the requirements of the national occupational health standards or the industry standard exposure limit. The compliance rates were 57.9% and 89.5% respectively. Conclusion The power frequency electromagnetic field strength of the hydropower plant has a limited impact on the health of its staff and the occupational hazard is slight.