A method for assessing the intensity of noises in contact with thermal power generation enterprise operation personnel

Abstract

The invention discloses a method for assessing the intensity of noises in contact with thermal power generation enterprise operation personnel. The method comprises the following steps: the days of continuous measurement are determined according to shift conditions of posts, working time and a working system; the noise intensity of each shift is measured through an individual noise measurement meter so as to the average intensity of contact noise of the post of each day; according to the average intensity of contact noise of the post of each day, the intensity of contact noise of operating personnel of the post in 40 hours in each week is calculated; the intensity of contact noise in 40 hours in each week is compared with a national standard to determine whether the intensity of noises in contact with the operating personnel is in accordance with the national prescriptions about national occupational health. According to the invention, problems of impossibility of carrying out contact noise intensity assessment carried out on the working personnel of this kind are solved through a traditional 8-hour and 40-hour equivalent continuous A sound level measurement and assessment method are solved, and the level of the intensity of the noises in contact with the operating personnel is truly reflected to the largest extend.

Description

technical field [0001] The invention relates to a method for evaluating the exposure noise intensity of operating personnel in thermal power generation enterprises. Background technique [0002] Noise is the main occupational hazard factor in thermal power plants, but there are not many studies on the method of evaluating the noise intensity of operating personnel. [0003] The national standard stipulates that if you work 5 days a week and work 8 hours a day, the noise exposure limit is 85dB(A); if you work 5 days a week, and the daily working hours are not equal to 8 hours, you need to calculate the equivalent sound level of 8 hours, the limit value It is 85dB(A); if the work is not 5 days a week, it is necessary to calculate the equivalent sound level for 40 hours, and the limit is 85dB(A). [0004] The working system of the operators of thermal power enterprises mainly includes four shifts on five shifts and three shifts on four shifts. The working system of operating p...

AI Technical Summary

Problems solved by technology

[0006] Therefore, the traditional 8-hour and 40-hour equivalent continuous A sound level measurement and evaluation methods cannot be used to evaluate the exposure noise intensity of such workers

Images