ICS 27.010  
F 01 
                                                         GB 
National Standard of the People’s Republic of China   
    GB 12021.9 –– 200X  
Replaces GB 12021.9 -1989  
_______________________________________________________________  
 
  
Minimum allo wable values of energy efficiency and energy 
efficiency grades of AC electric fans  
 
(Draft for Approval)  
 
 
 
 
 
 
Issue Date: 200X-XX-XX                  Implementation Date: 200 X-XX-XX 
____________________________________________________________________  
General Administration of Quality Supervision,  Inspection 
and Quarantine, of the People’s Republic of China  
(AQSIQ)  Issued  
by Standardisation Administration of the People's Republic of 
China  (SAC)  
 Foreword  
 
Subsection 4.3 of this Standard is mandatory, w hilst the rest of the clauses 
are recommended.  
This Standard replaces GB 12021.9 -1989 “L imited value of energy 
consumption of electric fans and it s measuring method.”  
The major changes to this Standard when compared with GB 12021.9 -1989 are 
as follows:  
––the name of this Standard has been modified to “ Minimum allowable values 
of energy efficiency and energy efficiency grades of AC electric fans”;  
––energy efficiency grades and evaluating values of energy conservation  in the 
Standard have been increased , as have rotary fans in the products;  
–– corresponding changes have been implemented with regard to the cited 
standards, terms and definitions;  
––the l imited value of energy consumption  in the original Standard has been 
amended to be the m inimum  allowable  values of energy efficiency;  
–– all the contents of limited value of import power and speed ratio have been 
deleted;  
––the content of the testing methods section has been deleted, its name 
modified to be test methods, and the test methods of GB/T 13380 have b een adopted;  
–– further amendments have been made to the contents of delivery inspection 
and type inspection;  
–– the entire content of Section 6 of the original Standard has been deleted;  
This Standard is under the jurisdiction of the Reasonable Power Use 
Sub-Committee, Technical Committee of National Energy Foundation and 
Administration Standardisation.  
The main drafting units of this Standard are: China National Institute of 
Standardization, Midea Group Co., Ltd., Shenzhen Lianchuang Industries Co., Ltd.,  
Ghangzhou Vkan Certification and Testing Institute, Gree Electric Appliances, Inc. of 
Zhuhai , Singfun Electric Group Co., Ltd., Airmate Electrical (Shenzhen) Co., Ltd., 
Shanghai Wahson Electric Appliance Co., Ltd., and Jiangmen Jinling Fan 
Manufacturing C o., Ltd.  
The main drafters of this Standard are: Wei Liu, Xuejun Chi, Jianhong Cheng, 
Wu Chen, Pan Wang, Tao Zhang, Guoning Yao, Zhijun Wang, Caifu Wang, Jianjiang 
Zhao, and Ruohong Wang.  
This Standard was issued for the first time in 1989. This is the fir st revision of 
this Standard.  Minimum allowable values of energy efficiency and energy 
efficiency grades of AC electric fans  
 
1   Scope  
     This Standard sets the energy efficiency grades, minimum allowable values of 
energy efficiency, evaluation values of energy conservation, test methods and 
inspection rules for alternating current (AC) electric fans.  
     This Standard applies to table fans, rotary fans, wall fans, box fans, stand fans 
and ceiling fans driven by AC electric motors with single -phase rat ed voltage not 
exceeding 250V and other rated voltages not exceeding 480V.  
 
2   Normative references  
     The provisions of the following documents become provisions of this Standard 
after being referenced. For dated reference documents, all later amendmen ts 
(excluding corrigenda) and revised versions do not apply to this Standard. However, 
the parties to the agreement are encouraged to study whether the latest version of 
these documents applies. For undated reference documents, the latest versions apply.      
GB/T 2828.1 Sampling procedures for inspection by attributes --Part 1: Sampling 
schemes indexed by acceptance quality limit(AQL) for lot -by-lot inspection  (GB/T 
2828.1 -2003, ISO 2859 -1: 1999, IDT)  
     GB/T 2829 Sampling procedures and tables for periodi c inspection  by attributes 
(Apply to inspection  of process stability)  
     GB/T 13380 AC electric fans and regulators  
 
3   Terms and definitions  
     The terms and definitions set out in GB/T 13380 apply to this Standard, as well 
as the following:  
3.1 
     Minimum allowable values of energy efficiency for AC electric fans  
     The minimum allowable values of energy efficiency for AC electric fans under 
the test conditions set out in this Standard, with the unit of cubic metre/minute. watt 
(m3/min.W). 
 
3.2 
     Evaluating values of energy conservation for AC electric fans  
     The minimum allowable values for AC electric fans to reach the certification requirements of energy conservation products under the test conditions set out in this 
Standard, in the unit  of cubic meter / minute.watt ( m3/min.W). 
 
4   Technical requirements  
4.1   Basic requirements  
     The performance of AC electric fans to which this Standard applies should meet 
the requirements of GB/T 13380.  
4.2   Energy efficiency grades  
     The energ y efficiency of AC electric fans is divided into 3 grades (please refer 
to Table 1), with Grade 1 having the highest energy efficiency. The energy efficiency 
of different grades of products should not be lower than the requirements set out in 
Table 1.  
Tabl e 1 Energy efficiency grades of AC electric fans  
Energy efficiency value  
Energy efficiency grade  Type  Specifications 
(mm)  
1 2 3 
Capacitive  0.71 0.60 0.54 
Shaded pole  200 
0.63 0.51 0.45 
Capacitive  0.84 0.70 0.64 
Shaded pole  230 
0.65 0.57 0.50 
Capacitive  0.91 0.79 0.74 
Shaded pole  250 0.72 0.61 0.54 
300 0.98 0.86 0.80 
350 1.08 0.95 0.90 
400 1.25 1.06 1.00 
450 1.42 1.19 1.10 
500 1.45 1.25 1.13 Table fans, rotary 
fans, wall fans, 
box fans, stand 
fans 
Capacitive  
600 1.65 1.43 1.30 
900 2.95 2.87 2.75 
1050  3.10 2.93 2.79 
1200  3.22 3.08 2.93 
1400  3.45 3.32 3.15 
1500  3.68 3.52 3.33 Ceiling fan  Capacitive  
1800  3.81 3.67 3.47 
4.3   Allowable values of energy efficiency  
     The allowable values of energy efficiency for AC electric fans are of Grade 3 of 
the energy efficiency grades set out in Table 1.  
4.4   Evaluating energy conservation values       The evaluating energy conservation values for AC electric fans are of Grade 2 
of the energy efficiency grades set out i n Table 1.  
 
5   Test methods  
     The input power of AC electric fans is tested according to the related 
requirements of GB/T 13380. The airflow of AC electric fans with fan leaf at a 
diameter above 400mm is measured according to the methods set out in GB/ T 13380.  
AC electric fans with fan leaf at a diameter below 400mm (inclusive of 400mm) 
should undergo testing by using an automatic airflow measurement device.  
      Note: Input power refers to the actually measured power of the fan -driven electric motor.  The 
measured airflow result takes the data of measured result at stable state as the standard.  
 
6   Inspection rules  
6.1   Delivery inspection  
6.1.1    The inspection project can take reference from GB/T 2828.1 and GB/T 2829, 
which shall be decided by the quality inspection department of the producer.  
6.1.2  Products whose asserted value of energy efficiency fails to comply with the 
requirements set out in Subsection 4.3 are not permitted for delivery from the factory.  
6.2   Type inspection  
6.2.1   Should on e of the following circumstances occur, an inspection of the 
minimum allowable value of energy efficiency should be carried out:  
     a) Trial manufacturing of new product;  
 b) Any change to product design, technology or material used has an obvious 
influe nce on the performance of the product;  
     c) Production of an old product that has not been produced for over one year;  
     d) The result of the delivery inspection has a significant difference from the 
result of the previous type inspection;  
     e) A quality technical supervision department requests a type inspection.  
6.2.2   With regard to sampling during the type inspection, three products should 
be randomly selected. Among the three products, two should be tested and one 
reserved. If the test result indic ates that the two tested products meet the 
requirements of this Standard, the batch qualifies. If the two tested products do 
not meet the requirements set out in this Standard, the batch fails to qualify.  
If the allowable value of energy efficiency of one  product does not meet the 
requirements set out in this Standard, a test should be performed on the 
reserved sample. If the test result meets the requirements of this Standard, the 
batch qualifies. If the test result fails to meet the requirements set out in this 
Standard, the batch fails to qualify.