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GB/T 4214.1-2017 (GB/T4214.1-2017)

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GB/T 4214.1-2017: PDF in English (GBT 4214.1-2017)

GB/T 4214.1-2017
NATIONAL STANDARD OF THE
PEOPLE’S REPUBLIC OF CHINA
ICS 17.140.20
Z 32
Replacing GB/T 4214.1-2000
Test method for noise of household and similar
electrical appliances - General requirements
(IEC 60704-1:2010, Household and similar electrical appliances - Test code
for the determination of airborne acoustical noise - Part 1: General
requirements, MOD)
ISSUED ON: DECEMBER 29, 2017
IMPLEMENTED ON: JULY 01, 2018
Issued by: General Administration of Quality Supervision, Inspection and
Quarantine of the PRC;
Standardization Administration of the PRC.
Table of Contents
Foreword ... 5 
Introduction ... 8 
1 Scope and object ... 9 
1.1 Scope ... 9 
1.2 Object ... 10 
1.3 Measurement uncertainty ... 10 
2 Normative references ... 11 
3 Terms and definitions ... 12 
4 Measurement methods and acoustical environments ... 14 
4.1 General ... 14 
4.2 Direct method ... 14 
4.3 Comparison method ... 15 
4.4 Acoustical environments ... 15 
5 Instrumentation ... 16 
5.1 Instrumentation for measuring acoustical data ... 16 
5.2 Instrumentation for measuring climatic conditions ... 16 
5.3 Instrumentation for measuring operating conditions ... 16 
6 Operation and location of appliances under test ... 17 
6.1 Equipping and pre-conditioning of appliances ... 17 
6.2 Supply of electric energy and of water or gas ... 17 
6.3 Climatic conditions ... 18 
6.4 Loading and operating of appliances during tests ... 19 
6.5 Location and mounting of appliances ... 20 
7 Measurement of sound pressure levels ... 23 
7.1 Microphone array, measurement surface and RSS location for essentially free field
conditions over reflecting plane(s) ... 23 
7.2 Microphone array and RSS location in hard-walled test rooms ... 29 
7.3 Microphone array and RSS location in special reverberation test rooms ... 29 
7.4 Measurements ... 30 
8 Calculation of sound pressure and sound power levels ... 31 
8.1 General ... 31 
8.2 Corrections for background noise levels ... 31 
8.3 Corrections for the test environment ... 32 
8.4 Calculation of sound pressure level averaged over the microphone positions ... 32 
8.5 Calculation of sound power levels with the comparison method ... 33 
8.6 Calculation of sound power levels in essentially free field conditions over a
reflecting plane ... 34 
8.7 Calculation of A-weighted sound power level with the direct method in special
reverberation test rooms ... 34 
9 Information to be recorded ... 35 
9.1 General data ... 35 
9.2 Description of appliance under test ... 35 
9.3 Measurement method ... 35 
9.4 Acoustical test environment ... 35 
9.5 Instrumentation ... 36 
9.6 Equipment and pre-conditioning of appliance under test ... 36 
9.7 Electric supply, water supply, etc... 36 
9.8 Climatic conditions ... 36 
9.9 Operation of the appliance under test ... 37 
9.10 Location and mounting of the appliance under test ... 37 
9.11 Microphone array ... 37 
9.12 Measurement data ... 37 
9.13 Calculated sound pressure and sound power levels ... 38 
10 Information to be reported ... 38 
10.1 General data 9.1 ... 38 
10.2 Appliance under test 9.2 ... 38 
10.3 Test conditions for the appliance ... 39 
10.4 Acoustical data ... 39 
Annex A (Normative) Standard test table ... 40 
Annex B (Normative) Test enclosure ... 41 
Bibliography ... 42 
Foreword
GB/T 4214 “Test method for noise of household and similar electrical appliances”
consists of several parts. Part 1 is the general requirements. Other parts are
particular requirements.
This Part is Part 1 of GB/T 4214.
This Part is drafted in accordance with the rules given in GB/T 1.1-2009.
This Part replaces GB/T 4214.1-2000 “Acoustics - Household and similar
electrical appliances - Test code for determination of airborne acoustical noise
- Part 1: General requirements”. As compared with GB/T 4214.1-2000, in
addition to editorial changes, the main technical changes are as follows:
- For Clause 1 Scope, modify the scope of the appliance not applicable;
- ADD the term and definition of 3.10;
- ADD instructions for testing the parts of household appliances, including
loading and testing enveloping surface, etc. (See 6.2.5, 6.4.1, 7.1.4);
- Propose the test method for frequency-conversion household appliances
(See 6.4.1);
- Describe the installation of wall-mounted appliances in detail (See 6.5.4,
7.1.2);
- For the test of wall built-in appliance, GIVE a detailed description of the test
method and the test enclosure (See 6.5.5, Annex B);
- For the selection of hemispherical enveloping surface, MAKE a division and
description. The radius is not limited to 1.5 m and 2 m. For small appliances
and household appliance parts etc., a test radius of 1 m can be used (See
7.1.4);
- ADD a test method for the operational noise of non-stationary appliances
(See 7.4.1);
- Modify the provisions for corrected value of background noise (See 8.2).
This Part uses redraft law to modify and adopt IEC 60704-1:2010 (Edition 3.0)
“Household and similar electrical appliances - Test code for the determination
of airborne acoustical noise - Part 1: General requirements”.
As compared with IEC 60704-1:2010, the main technical differences in this Part
and their reasons are as follows:
- About normative references, this Part has made adjustments with technical
differences, to adapt to the technical conditions of China. The adjustments
are reflected in Clause 2 “Normative references”, as follows:
 Replace IEC 61260:1995 with GB/T 3241-2010 which modifies and
adopts the international standard;
 Replace ISO 3744:1994 with GB/T 3767-1996 which is not equivalent
to the international standard.
- For Clause 1 Scope, modify the scope of the appliance not applicable.
Reason: Household and similar air conditioners are covered by this
Standard.
- ADD the term and definition of 3.10. Reason: This term appears in 7.4.1.
- ADD instructions for testing the parts of household appliances, including
loading and testing enveloping surface, etc. (6.2.5, 6.4.1, 7.1.4). Reason:
Define the test method for parts of household appliances.
- Propose the test method for frequency-conversion household appliances
(6.4.1). Reason: Define the test method for frequency-conversion
household appliances.
- Describe the installation of wall-mounted appliances in detail (7.1.2).
Reason: Define the installation of wall-mounted appliances.
- For the selection of hemispherical enveloping surface, MAKE a division and
description. The radius is not limited to 1.5 m and 2 m. For small appliances
and household appliance parts etc., a test radius of 1 m can be used (7.1.4).
Reason: Define the method of selecting a hemispherical enveloping surface.
- ADD a test method for the operational noise of non-stationary appliances
(7.4.1). Reason: Define the test method for the operational noise of non-
stationary appliances.
- CORRECT the mis-presentation of the comparison-method calculation
formula in 8.5. Reason: Corrigendum.
- Delete Annex C. Reason: This Standard does not use the contents of Annex
C.
Attention is drawn to the possibility that some of the elements of this document
may be the subject of patent rights. The issuing authority of this document shall
not be held responsible for identifying any or all such patent rights.
This Part was proposed by China National Light Industry Council.
This Part shall be under the jurisdiction of National Standardization Technical
Committees on Household Electric Appliances (SAC/TC 46).
Drafting organizations of this Part: China Household Electric Appliance
Research Institute, Guangdong Midea Kitchen Appliance Manufacturing Co.,
Ltd., Qingdao Haier Intelligent Technology Development Co., Ltd., Ningbo Fotile
Kitchen Ware Co., Ltd., Hisense Kelon Electrical Holdings Co., Ltd., Zhejiang
Shaoxing Supor Domestic Electrical Appliance Co., Ltd., Joyoung Co., Ltd.,
Guangdong Galanz Group Co., Ltd., BSH Electrical Appliances (Jiangsu) Co.,
Ltd., Guangdong Tonze Electric Co., Ltd., Shanghai Mitsubishi Electric &
Shangling Air-Conditioner and Electric Appliance Co., Ltd., Xiamen Comfort
Science & Technology Group Co., Ltd., Ningbo Oulin Kitchen Utensils Co., Ltd.,
Guangdong Vanward New Electric Co., Ltd., Zhejiang Elica Puti Electric Co.,
Ltd., Zhejiang Kangquan Electric Co., Ltd., Guangdong Chigo Air Conditioning
Co., Ltd., Foshan Supervision Testing Centre of Quality and Metrology, Ningbo
Aux Air-Conditioning Co., Ltd., Hefei Kinghome Electrical Co., Ltd.
Main drafters of this Part: Ma Dejun, Yang Weicheng, Luan Chun, Wu Liyun,
Zhu Yongding, Lu Jianguo, Chen Aimin, Wu Meng, Cai Caide, Han Run, Zhao
Shuang, Li Xufei, Wu Jiantao, Lv Quanbin, Pan Yewei, Li Xinchun, Xu Jingping,
Zhou Liang, Ye Dongdong, Xu Feng, Cheng Yongzhi, Peng Baisheng, Bai Wei,
Xin Haiya.
The previous editions of the standard replaced by this Part were released as
follows:
- GB/T 4214.1-2000;
- GB/T 4214-1984.
Test method for noise of household and similar
electrical appliances - General requirements
1 Scope and object
1.1 Scope
1.1.1 General
This Part of GB/T 4214 applies to electric appliances (including their
accessories or components) for household and similar use, supplied from
mains or from batteries.
By similar use is understood the use in similar conditions as in households, for
example in inns, coffee-houses, tea-rooms, hotels, barber or hairdresser shops,
launderettes, etc., if not otherwise specified in the particular requirements of
GB/T 4214 series standards.
This Part does not apply to
- appliances, equipment or machines designed exclusively for industrial or
professional purposes;
- appliances which are integrated parts of a building or its installations, such
as equipment for heating and ventilating (except household fans, cooker
hoods and free standing heating appliances), oil burners for central heating,
pumps for water supply and for sewage systems;
Note: Household and similar air conditioner products covered by GB/T 7725 are
covered by this Part.
- separate motors or generators;
- appliances for outdoor use.
1.1.2 Types of noise
A classification of different types of noise is given in GB/T 19052-2003. The
method specified in GB/T 3767-1996 is suitable for measurements of all types
of noise emitted by household appliances. The methods specified in GB/T
6881.2-2002 and GB/T 6881.3-2002 are suitable for all types of noise, except
for sources of impulsive noise. This will be taken into account in the preparation
of particular requirements.
......