GB 21456-2014 (GB 21456-2024 Newer Version) PDF English
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Minimum allowable values of the energy efficiency and energy efficiency grades for household and similar kitchen appliances
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| GB 21456-2014 | English | 70 |
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Minimum allowable values of the energy efficiency and energy efficiency grades for household induction cookers
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| GB 21456-2008 | English | 439 |
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The minimum allowable values of the energy efficiency and energy efficiency grades for household induction cookers
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GB 21456-2014: PDF in English GB 21456-2014
GB
NATIONAL STANDARD OF THE
PEOPLE’S REPUBLIC OF CHINA
ICS 27.010
F 01
Replacing GB 21456-2008
Minimum allowable values of the energy
efficiency and energy efficiency grades for
household induction cookers
ISSUED ON. APRIL 28, 2014
IMPLEMENTED ON. JANUARY 1, 2015
Issued by. General Administration of Quality Supervision, Inspection and
Quarantine of the People's Republic of China;
Standardization Administration of the People's Republic of
China.
Table of Contents
Foreword ... 3
1 Scope ... 4
2 Normative references ... 4
3 Terms and definitions ... 4
4 Technical requirements ... 5
5 Test methods ... 6
6 Inspection rules ... 6
Annex A (Normative) Dimensions and requirements for standard pans and pan
lids ... 8
Annex B (Normative) Test method for thermal efficiency of induction cookers
... 12
Annex C (Normative) Test method for standby power of induction cookers -
average power method ... 15
Foreword
Article 4.3 of this Standard is mandatory, the rest is recommended.
This Standard is drafted according to the rules given in GB/T 1.1-2009.
This Standard replaces GB 21456-2008 “Minimum allowable values of the energy
efficiency and energy efficiency grades for household induction cookers”. Compared
with GB 21456-2008, the main changes are as follows.
- ENLARGE the applicable scope of induction cookers’ power range;
- ADD normative references;
- MODIFY the energy efficiency limits of products;
- SUBDIVIDE the energy efficiency grades of different-power induction cookers;
- MODIFY the test method.
This Standard is proposed by Resource Conservation and Environmental Protection
Division of National Development and Reform Commission, Energy Conservation and
Comprehensive Utilization Division of Ministry of Industry and Information Technology.
This Standard is under the jurisdiction of National Technical Committee on Energy
Infrastructure and Management of the Standardization Administration of China
(SAC/TC 20).
Drafting organizations of this Standard. China Standardization Research Institute,
China Standard Certification (Beijing) Co., Ltd., Zhejiang Supor Household Electric Co.,
Ltd., Guangdong Midea Electric Appliance Manufacturing Co., Ltd., Joyoung Co., Ltd.,
Weikai Detection Technology Co., Ltd., China Household Electric Appliance Research
Institute, Shanghai Institute of Quality Inspection and Technical Research, BSH
Electric Appliance (Jiangsu) Co., Ltd., Guangdong Lobei Electronic Technology Co.,
Ltd., Foshan Aoting Electric Appliance Co., Ltd., Zhuhai Gree Electric Appliance Co.,
Ltd., Dongguan Qianfeng Electronics Co., Ltd.
Main drafters of this Standard. Wang Ruohong, Chen Jian, Zhang Shaojun, He
Tingting, Song Yunna, Cai Caide, Wang Kaixiang, Run Xian, Han Run, Ling Honghao,
Wang Xiaochen, Wu Xin, Li Zhonglin, Xie Shirong, Huang Hui and Yuan Canrong.
The previous version of the standard replaced by this Standard is as follows.
- GB 21456-2008.
Minimum allowable values of the energy efficiency and
energy efficiency grades for household induction cookers
1 Scope
This Standard specifies the energy efficiency grade, minimum allowable values of
energy efficiency, evaluating values of energy conservation, test method and
inspection rule for household induction cookers and induction cookers with similar use
(hereinafter referred to as “induction cookers”).
This Standard applies to induction cookers with one or more heating unit(s); the rated
power of each heating unit is 700 W ~ 3500 W.
This Standard does not apply to commercial induction cookers, power frequency
induction cookers and concave cookers.
2 Normative references
The following referenced documents are indispensable for the application of this
document. For dated references, only the edition cited applies. For undated references,
the latest edition of the referenced document (including any amendments) applies.
GB 4706.14 Household and similar electrical appliances - Safety - Particular
requirements for grills toasters and similar portable cooking appliances
GB 4706.22 Household and similar electrical appliances - Safety - Part 2-6.
Particular requirements for stationary cooking ranges hobs ovens and similar
appliances
GB 4706.29 Household and similar electrical appliances - Safety - Particular
requirements for portable induction cooker
3 Terms and definitions
The following terms and definitions apply to this document.
3.1
heating unit
On induction cooker’s table, the part that can be placed with vessels and has
requirements of 4.3, are not allowed to leave the factory.
6.2 Type inspection
6.2.1 When one of the following situations occurs, the type inspection to the minimum
allowable values of energy efficiency for induction cookers shall be carried out.
a) trial production of new products;
b) there are significant changes in the design, process or material used of products;
c) for products in continuous production, at least once per year;
d) reproduction after an interval of one or more than one year;
e) the results of factory-exit inspection and the last type inspection are quite different;
f) State Quality Supervision Department requires to carry out type inspection.
6.2.2 For the sampling of type inspection, select 3 cookers, 2 for test and 1 for spare.
If the test result shows that both 2 cookers meet the requirements of this Standard,
this batch is determined qualified; if both 2 cookers fail to meet the requirements of this
Standard, the batch is determined unqualified. If the minimum allowable value of
energy efficiency of 1 cooker does not meet the requirements of this Standard, then
the spare induction cooker shall be tested, the batch is determined qualified if the test
results meet the requirements; if the test results still do not meet the requirements,
then the batch is determined unqualified.
Annex B
(Normative)
Test method for thermal efficiency of induction cookers
B.1 Test conditions
The test conditions are as follows.
a) ambient temperature. 20 °C ± 2 °C;
b) relative humidity. 45% ~ 85%;
c) atmospheric pressure. 86 kPa ~ 106 kPa;
d) the power supply voltage is 220 (1 ± 1%) V, the frequency is (50 ± 1) Hz;
e) there is no significant air convection in the test area.
B.2 Technical indicators for test instruments, meters and equipment
The technical indicators of test instruments, meters and equipment are as follows.
a) the total harmonic distortion of the voltage of the test power supply is less than
3%;
b) energy meters are capable of measuring energy consumption at a minimum of
20 mW · h;
c) a thermometer for measuring temperature, the resolution is not more than 0.1 °C;
d) the quality measurement resolution is not more than 5 g;
e) the accuracy of the timer is ± 2 s/h.
B.3 Test method for thermal efficiency
Under the specified test conditions, SELECT the minimum specification standard pan
(the diameter of standard pan bottom is greater than the effective diameter of coil) that
can cover the heating area by referring to Annex A; MEASURE the mass m2 of the
standard pan with a lid; PLACE the corresponding standard pan in cold-state heating
unit center of the measured induction cooker; FILL the pan with water m1 of specified
mass in Table 1, the water temperature is 15 °C ± 1 °C; COVER the lid; PUT the
thermometer from the hole on the pan lid into the pan’s center position; IMMERSE the
thermometer’s temperature-sensing part IN the water at a distance of 10 mm from the
bottom; READ the reading t1 of thermometer; TURN on the induction cooker and
......
Source: Above contents are excerpted from the PDF -- translated/reviewed by: www.chinesestandard.net / Wayne Zheng et al.
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