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为了探讨制订机车司机室噪声卫生标准的途径和方法,对JF型蒸汽机车和韶山I型、6G型电力机车司机室的噪声作了测量和计算;并对乘务员的听力做了检查。现作介绍如下: 一、司机室噪声的测量和计算方法: 取司机或付司机的耳朵旁为测点。使用B&K 2203精密声级计,读慢档A数值。蒸汽机车运行中测量“给汽”和“不给汽”的噪音是在5～10秒问读取最大值的平均值,重复20～30次,然后取平均值。鸣笛噪声是读取最大值,重复20次以上,然后取平均值。隧
In order to discuss the ways and methods of formulating noise health standards for locomotive cab, the noise of JF steam locomotive and driver’s cab of Shaoshan I and 6G locomotives were measured and calculated. The flight attendants’ hearing was checked. Now make the following introduction: First, the cab noise measurement and calculation methods: Take the driver or pay drivers next to the ear as a measuring point. Use the B & K 2203 Precision Sound Level Meter to read Slow A values. Steam locomotive running to measure “to steam” and “no steam” noise is read in 5 to 10 seconds to ask the maximum average, repeat 20 to 30 times, and then average. The whistle noise is read maximum, repeated more than 20 times, and then averaged. tunnel