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BSI BS 4999-109:1987

General requirements for rotating electrical machines -- Specification for noise levels, including test methods
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BSI BS 4999-109:1987

General requirements for rotating electrical machines -- Specification for noise levels, including test methods

PUBLISH DATE 1987
PAGES 18
BSI BS 4999-109:1987

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*.

SDO BSI: British Standards Institution
Document Number 4999-109
Publication Date Feb. 27, 1987
Language en - English
Page Count
Revision Level
Supercedes
Committee PEL/2
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