GB/T 4214.9-2021Test method for noise of household and similar electrical appliances - Particular requirements for fans (English PDF)

3.115 floor fans (Clause 3);

--- Definitions 3.101~3.109 have repeatedly used the definition of comfort fans in IEC

60879.2019, so add the term and definition of 3.116 comfort fans for ease of use and

understanding (Clause 3);

--- Describe the test height of height-adjustable table fans, floor fans and pedestal fans in

details, and list the situations that can be automatically oscillated. Reason. Clarify the

test height and automatic swing of height-adjustable table fans, floor fans and pedestal

fans (see 6.4.1);

--- Add the ceiling bracket fans, because the installation method of the ceiling bracket is the

same as that of the ceiling fans (6.5.1);

--- Add the installation method of the wall bracket fans, so that clarify the installation

method of the wall bracket fans (6.5.4);

--- Add floor fans to the 7.1.1 the scope of application of the measurement surface. Reason.

The above-mentioned type of fan is added to the scope of Clause 1 (7.1.1);

--- Describe the high pedestal fans that is applicable to the measurement surface in 7.1.6,

which is applicable to the non-adjustable height pedestal fans whose geometric center of

the reference body is greater than 1m from the ground. Reason. Clarify the range of the

high pedestal fans (7.1.6).

This Part made the following editorial modifications.

--- In order to keep consistent with the existing standard series, change the standard name

into Test Method for Noise of Household and Similar Electrical Appliances - Particular

Requirements for Fans.

This Part was proposed by China National Light Industry Council.

This Part shall be under the jurisdiction of National Technical Committee on Household

Electrical Appliances of Standardization Administration of China (SAC/TC 46).

Drafting organizations of this Part. China Household Electric Appliance Research Institute;

China National Electric Apparatus Research Institute Co., Ltd.; GD Midea Environment

Appliances MFG. Co., Ltd.; Panasonic Ecology Systems Guangdong Co., Ltd.; Gree Electric

Appliances, INC. of Zhuhai; Feidiao Electrical Appliances Group Co., Ltd.; Ningbo Pioneer

Electric Manufacturing Co., Ltd.; Vkan Certification & Testing Co., Ltd.; Foshan Jixing Home

Appliance Co., Ltd.; Foshan City Nanhai Dongjin Household Appliances Co., Ltd.; Foshan City

Nanhai Feixing Electrical Appliance Industry Co., Ltd.; and Foshan Nanhai Electric Fan

Industry Association.

Chief drafting staffs of this Part. Zheng Ziying, Wu Meng, Kang Ruixiang, Wu Xiuling, Tan

Qi, Yang Hao, Zhu Yongguo, Chen Qicai, Chen Hao, Huang Baochai, Chen Baiqiang, Xiao

Zhiqiang, and Huang Huizhen.

Test Method for Noise of Household and Similar

Electrical Appliances - Particular Requirements for Fans

1.1 Scope

1.1.1 General

Replacement.

This Part of GB/T 4214 applies to electrical fans (hereinafter referred to as fans) including their

accessories and their component parts for household and similar use, designed for AC or DC

supply.

The motor, the impeller and their housing, if any, form a single unit.

This Part apply to.

- conventional fans,

- table fans,

- pedestal fans,

- ceiling fans,

- bladeless fans,

- wall bracket fans,

- ceiling bracket fans,

- louver fans,

- tower fans,

- ventilating and partition ventilating fans,

- pedestal fan.

6.2 Supply of electricity and of water or gas

6.2.3 Not applicable.

6.2.4 Not applicable.

6.4 Loading and operating of appliances during tests

6.4.1 Replacement.

Load and operation should simulate normal use. Fans that can be tilted during normal use shall

be located in the position with the highest emitted noise level, and the duration of the

measurement shall be at least 10 s.

For height-adjustable table fans, floor fans and pedestal fans, adjust the center of the motor

shaft of the appliance to a height of 1.5m from the ground. If the maximum height of the

appliance is less than 1.5m, test at the maximum height.

Fans that can oscillate automatically (shaking head, swinging blades, guide vane wind wheel

rotation, etc.) shall operate when oscillating. In the case of oscillating appliances, the A-

weighted sound pressure level shall be averaged on at least one complete cycle.

6.4.3 Not applicable.

6.5 Location and mounting of appliances

6.5.1 Addition.

Ceiling fans and ceiling bracket fans may be hung from a special support instead of from the

ceiling. In this case, care shall be taken to ensure that the means of suspension or clamping do

not change the sound output of the appliance. In order not to restrict the airflow, the distance

between the lowest edge of the appliance and the reflecting plane (usually the floor) shall be at

......