Research on the optimization method of selecting hearing protectors in power station

In order to explore the noise reduction effect and application of different hearing protectors in different workplaces in a power station, so as to facilitate to select differently suitable hearing protectors to staff based on needs. This paper uses principal component analysis and evaluation according to the insertion loss test results of 112 kinds of hearing protectors. Combined with the field test results of 10 workplaces in a power station, it is found that 112 kinds of hearing protectors mostly are suitable in 7 working places. People need to select suitable hearing protectors specifically in other 3 places. At the same time, this paper can provide reference for the selection of hearing protection in other different working places.