ДСТУ EN IEC 60704-1:2022 Побутові та аналогічні електричні прилади. Тестовий код для визначення повітряного акустичного шуму. Частина 1. Загальні вимоги (EN IEC 60704-1:2021, IDT; IEC 60704-1:2021, IDT)

ДСТУ EN IEC 60704-1:2022
(EN IEC 60704-1:2021, IDT; IEC 60704-1:2021, IDT)

Побутові та аналогічні електричні прилади. Тестовий код для
визначення повітряного акустичного шуму Частина 1. Загальні вимоги

 
   
 
Не є офіційним виданням.
Офіційне видання розповсюджує національний орган стандартизації
(ДП «УкрНДНЦ» http://uas.gov.ua)

Contents

Foreword

Introduction

1 Scope

2 Normative references

3 Terms and definitions

4 Measurement methods and acoustical environments

4.1 General

4.2 Direct method

4.3 Comparison method

4.4 Acoustical environments

4.5 Measurement uncertainties

5 Instrumentation

5.1 Instrumentation for measuring acoustical data

5.2 Instrumentation for measuring climatic conditions

5.3 Instrumentation for measuring operating conditions

6 Operation and location of appliances under test

6.1 Equipping and pre-conditioning of appliances

6.2 Supply of electric energy and of water or gas

6.3 Climatic conditions

6.4 Loading and operating of appliances during tests

6.5 Location and mounting of appliances

7 Measurement of sound pressure levels

7.1 Microphone array, measurement surface and RSS location for essentially free field conditions over reflecting plane(s)

7.2 Microphone array and RSS location in hard-walled test rooms

7.3 Microphone array and RSS location in special reverberation test rooms

7.4 Measurements

8 Calculation of sound pressure and sound power levels

8.1 General

8.2 Corrections for background noise levels

8.3 Corrections for the test environment

8.4 Calculation of sound pressure level averaged over the microphone positions

8.5 Calculation of sound power levels with the comparison method

8.6 Calculation of sound power levels in free field conditions over a reflecting plane

8.7 Calculation of A-weighted sound power level with the direct method in special reverberation test rooms

9 Information to be recorded

9.1 General data

9.2 Description of appliance under test

9.3 Measurement method

9.4 Acoustical test environment

9.5 Instrumentation

9.6 Equipment and pre-conditioning of appliance under test

9.7 Electric supply, water supply, etc.

9.8 Climatic conditions

9.9 Operation of the appliance under test

9.10 Location and mounting of the appliance under test

9.11 Microphone array

9.12 Measurement data

9.13 Calculated sound pressure and sound power levels

9.14 Reporting

10 Information to be reported

10.1 General data

10.2 Appliance under test

10.3 Test conditions for the appliance

10.4 Acoustical data

Annex A (normative) Standard test table

Annex В (normative) Test enclosure

Annex C (informative) Guidelines for the design of simple test rooms with essentially free field conditions

Bibliography