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据我站调查,B_(17)型机械保温列车(简称机保车)的职业性危害主要是噪声问题。为进一步了解机保车的噪声特性及其对乘务员健康影响,做好防治工作,继续开展了噪声作业体检,并对机保车进行了等效连续A声级的测定,结果报道如下。一、内容及方法 (一)机保车的噪声特性 1.测点的选择:本次测定重点选择了五个测点,即冷冻机车、柴油发电室、办公室、卧室及厨房。都是在室中央工人作业带进行,以人耳高度为准。 2.稳态噪声测定:使用B＆K2209型及ND_2型精密声级计、在不同工况下(行车、停车,开机、关机,开(关)隔门,开(关)侧窗)进行测定。
According to my station investigation, B_ (17) mechanical thermal insulation train (referred to as the motor vehicle) occupational hazards are mainly noise problems. To further understand the noise characteristics of the PICC and its impact on the health of flight attendants, to prevent and control the work, continue to carry out the noise operation medical examination, and carried out on the PICC equivalent continuous A sound level measurement, the results reported below. I. Content and methods (I) Noise characteristics of PICC 1. Selection of measurement points: Five measurement points were selected for this measurement, namely refrigerated locomotive, diesel generating room, office, bedroom and kitchen. All workers in the central work area with the band, with the human ear height prevail. 2. Steady-state noise measurement: using B & K2209 and ND_2 precision sound level meter, under different conditions (driving, parking, power on, off, open the door, open (off) side windows) were measured.