BS 4999-109:1987被替代
General requirements for rotating electrical machines. Specification for noise levels, including test methods
出版：British Standards Institution
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基本信息
标准编号： BS 4999-109:1987
发布时间：1987/2/27 0:00:00
标准类别：Standard
出版单位：British Standards Institution
标准页数：0
标准简介
Specifies methods of measuring and classifying the acoustic noise emitted under free field conditions. Methods for correcting for presence of pure tones. Upper limits of dB(A) sound power given for machines rated up to 16 MW.
标准备注
© British Standards Institution 2013
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