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[目的]分析抽水蓄能电站运行人员的噪声暴露水平。[方法]检测运行人员在运行工况及备用工况每次巡检时的接噪强度以及巡检后控制室的噪声强度,结合运行人员在不同情况下的接噪时间,计算运行人员在四值三运转的工作制度下,1周42h接触噪声强度的等效声级,进而换算至1周40h接触噪声强度的等效声级。[结果]本研究共检测6次运行工况及3次备用工况下的个体噪声及控制室噪声,经过计算分析,得出运行人员1周42h接触噪声的等效连续A声级为62.1dB(A),换算至1周40h接触噪声的等效连续A声级为62.3dB(A)。[结论]抽水蓄能电站运行人员的噪声暴露水平未超过《工作场所有害因素职业接触限值第2部分:物理因素》(GBZ2.2—2007)中规定的职业接触限值85dB(A)。
[Objective] To analyze the noise exposure level of pumped storage power station operators. [Method] Detecting the noise intensity of operating personnel during each inspection of operating condition and standby condition and the noise intensity of the control room after inspection, and combining with the noise receiving time of operating personnel in different situations, Under the working system with three working values, the equivalent sound level of 42h exposure to noise intensity for 1 week is converted to the equivalent sound level of 40h contact noise intensity for 1 week. [Result] In this study, a total of six operating conditions and three standby conditions were detected individual noise and control room noise. After calculation and analysis, the equivalent continuous A sound level of 42h contact noise for one week was 62.1dB (A), the equivalent continuous A sound level of contact noise converted to 40h at 1 week is 62.3dB (A). [Conclusion] The noise exposure level of pumped storage power plant operators did not exceed the occupational exposure limits of 85dB (A) specified in “Occupational exposure limits for workplace hazardous substances Part 2: Physical factors” (GBZ2.2-2007).