Zradziński Patryk
a Central Institute for Labour Protection - National Research Institute (CIOP-PIB) , Poland.
Int J Occup Saf Ergon. 2015;21(2):213-20. doi: 10.1080/10803548.2015.1028233.
Due to the various physical mechanisms of interaction between a worker's body and the electromagnetic field at various frequencies, the principles of numerical simulations have been discussed for three areas of worker exposure: to low frequency magnetic field, to low and intermediate frequency electric field and to radiofrequency electromagnetic field. This paper presents the identified difficulties in applying numerical simulations to evaluate physical estimators of direct and indirect effects of exposure to electromagnetic fields at various frequencies. Exposure of workers operating a plastic sealer have been taken as an example scenario of electromagnetic field exposure at the workplace for discussion of those difficulties in applying numerical simulations. The following difficulties in reliable numerical simulations of workers' exposure to the electromagnetic field have been considered: workers' body models (posture, dimensions, shape and grounding conditions), working environment models (objects most influencing electromagnetic field distribution) and an analysis of parameters for which exposure limitations are specified in international guidelines and standards.
由于工人身体与不同频率电磁场之间存在各种物理相互作用机制，针对工人暴露的三个领域讨论了数值模拟原理：低频磁场、低中频电场以及射频电磁场。本文介绍了在应用数值模拟评估不同频率电磁场暴露的直接和间接影响的物理估计量时所发现的困难。以操作塑料封口机的工人暴露情况作为工作场所电磁场暴露的示例场景，来讨论应用数值模拟时的这些困难。已考虑到在对工人电磁场暴露进行可靠数值模拟时存在的以下困难：工人身体模型（姿势、尺寸、形状和接地条件）、工作环境模型（对电磁场分布影响最大的物体）以及对国际指南和标准中规定了暴露限值的参数的分析。
