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BS EN ISO 8528-10:2022 – TC:2023 Edition

BS EN ISO 8528-10:2022 – TC:2023 Edition

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Tracked Changes. Reciprocating internal combustion engine driven alternating current generating sets – Measurement of airborne noise

Published By Publication Date Number of Pages
BSI 2023 132
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This document specifies noise test codes for determining the sound power level and the emission sound pressure level at the workstation of reciprocating internal combustion engine driven electrical power generating sets. This document applies to constant and variable-speed reciprocating internal combustion (RIC) engine driven alternating current (AC) and direct current (DC) generating sets for fixed and mobile applications with rigid or flexible mountings. It is applicable for land and marine use, excluding generating sets used on aircraft or to propel land vehicles and locomotives. NOTE 1   For some specific applications (e.g. essential hospital supplies, high-rise buildings) supplementary requirements can be necessary. The provisions of this document can be regarded as a basis. NOTE 2   This document is referenced with regard to noise in ISO 8528-13:2016, which contains requirements concerning the design of generating sets, verification of noise levels and information related to noise in the operating and maintenance instructions.

PDF Catalog

PDF Pages PDF Title
1 30468345
75 A-30397693
76 undefined
81 Annex ZA (informative)Relationship between this document and the essential requirements of Directive 2006/42/EC aimed to be covered
82 Blank Page
85 Foreword
86 Introduction
87 1 Scope
2 Normative references
88 3 Terms and definitions
89 4 Symbols
90 5 Selection of the most appropriate method
5.1 General
91 5.2 Sound power level measurements accuracy grades
5.2.1 General
5.2.2 Engineering grade (grade 2)
5.2.3 Survey grade (grade 3)
92 6 Measuring equipment
6.1 General
6.2 Calibration
7 Measuring environment
7.1 General
7.2 ​Verification of acoustic adequacy of test environment
7.3 Criteria for background noise
8 Definition of noise source and operating conditions of the generating set
8.1 Definition of noise source under test
93 8.2 Location, installation of the generating set
8.3 Mounting of the generating set
8.4 Operation of the generating set during test
94 9 Reference box and measurement surface
9.1 Reference box
9.2 Determination of the reference box in special cases
9.2.1 Elevated generating set on a trailer or trolley kit
9.2.2 Generating set with extended exhaust device
95 9.2.3 Generating set with auxiliary equipment
9.3 Measurement surface
9.3.1 General
9.3.2 Microphone orientation
96 9.3.3 Hemispherical measurement surface
9.3.4 Parallelepiped measurement surface
9.3.5 Reduction in the number of microphone positions
10 Measurement of sound pressure levels
11 Determination of the A-weighted sound power level
11.1 Calculation of mean-time-averaged sound pressure levels
11.2 Corrections for background noise
11.3 Calculation of the surface time-averaged sound pressure levels
97 11.4 Calculation of sound power levels
11.5 Calculation of apparent surface sound pressure level non-uniformity index
11.6 A-weighted sound power level
12 Measurement uncertainty
13 Guaranteed sound power level
13.1 General
13.2 Arithmetic mean of sound power levels
98 13.3 Expanded measurement uncertainty
13.4 Coverage factor
13.5 Determination of σR0
13.6 Determination of σomc
99 13.7 Determination of σp
13.8 Calculation of the guaranteed sound power level
14 Test report
15 Determination of the emission sound pressure level at the workstation
15.1 General
15.2 Determination of location of the workstation(s)
100 15.3 Criteria for the adequacy of the test environment
15.4 Corrections for background noise
15.5 Measured quantity
15.6 Calculation of A-weighted emission sound pressure level
15.7 Normalizing to reference meteorological conditions
101 15.8 Quantities to be determined
15.9 Operation of the generating set
15.10 Microphone positions
15.10.1 General
102 15.10.2 Microphone position for a standing operator
15.10.3 Microphone position for a bending, crouching or kneeling operator
15.10.4 Microphone positions if there is no clearly identifiable operator position or for machines without operator
15.11 Measurement uncertainty
15.12 Test report
103 Annex A (normative) Application of ISO 3744:2010 for generating sets
123 Annex B (normative) Application of ISO 3746:2010 for generating sets
127 Annex C (informative) Sound intensity methods
129 Bibliography

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BS EN ISO 8528-10:2022 - TC
$258.95