Forum Discussion
nomad297
Jul 04, 2014Explorer
Hiking Hunter wrote:
dBa is an acoustical power rating which doubles every 3 dB. Twice the amount of sound would be a rating of 76dBa. But, it's more complicated than a straight formula and depends on specific frequencies, etc. The best way to determine the noise level of a couple of generators would be to measure them while running with an audio real time analyzer (RTA). It shouldn't be higher than 76 dB though.
I found this chart which pretty much shows what you said. Based on this and your reply, what I learned in OSHA training is wrong, which really doesn't surprise me, because whenever OSHA is involved with anything, the truth is exaggerated.
Bruce
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