According to the national regulations, we must wear noise proof earplugs (noise proof earplugs) or noise proof earmuffs to protect our hearing when we work in the working environment with noise level over 85 dB for more than 8 hours
in the production process, there are mainly the following kinds of noise that can cause hearing damage:
1) mechanical noise: the noise caused by mechanical impact, friction, solid vibration and rotation, such as the sound from electric saw, machine tool and stone crusher
2) aerodynamic noise: noise caused by air vibration, such as fan, air compressor, ejector, whistle, boiler exhaust, etc
3) electromagnetic noise: noise caused by the interaction of alternating forces in the motor. Such as the sound produced by generator and transformer
it can be seen that in most industrial environments, we need to wear sound insulation earplugs (anti noise earplugs) or sound insulation earmuffs to protect our hearing
our website solemnly declares that this article is reprinted by network media, only representing the author’s point of view, and has nothing to do with our website. 1f the information column articles and comments violate your legal rights, please call to let us know and we will deal with them in time