NBN EN 1151-2 : 2006 COR 2007
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
PUMPS - ROTODYNAMIC PUMPS - CIRCULATION PUMPS HAVING A RATED POWER INPUT NOT EXCEEDING 200 W FOR HEATING INSTALLATIONS AND DOMESTIC HOT WATER INSTALLATIONS - PART 2: NOISE TEST CODE (VIBRO-ACOUSTICS) FOR MEASURING STRUCTURE- AND FLUID-BORNE NOISE
01-02-2015
12-01-2013
Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Test rig
4.1 General
4.2 Main components of test rig
4.3 Specification of test rig components
4.4 Assembly
4.5 Foundation
4.6 Qualifications
4.7 Instrumentation
4.7.1 Measurement of pressure fluctuations
4.7.2 Measurement of vibration
4.8 Calibration
4.8.1 Accelerometers
4.8.2 Pressure trans
4.8.3 Calibration of accelerometers and
pressure transducers
4.9 Propagation factors
5 Installation and operation of the tested pump
5.1 Installation of the pump
5.2 Operating parameters
5.3 Initial operation
6 Factors influencing measurements
6.1 Electromagnetic surroundings
6.2 Earth loops
6.3 Vibration surroundings
7 Determination of fluid- and structure-borne powers
7.1 Frequency range
7.2 Measurement parameters
7.2.1 Pressure fluctuation measurement parameters
7.2.2 Vibration measurement parameters
7.3 Sense of power propagation
7.4 Fluid-borne power determination
7.4.1 General
7.4.2 Fluid-borne intensity
7.4.3 Fluid-borne power
7.5 Structure-borne power determination
7.5.1 General
7.5.2 Structure-borne intensity
7.5.3 Structure-borne power
7.6 Overall values of power
7.7 Coefficients of energy propagation and power levels
7.7.1 Coefficient of fluid-borne energy propagation
7.7.2 Coefficient of structure-borne energy propagation
7.7.3 Fluid-borne power level
7.7.4 Structure-borne power level
8 Information to be reported
Annex A (informative) Bending wavenumber and intensity
dimensional constant
Bibliography
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