China China responds to questions regarding small and medium-sized three-phase asynchronous motor

On June 9, 2021, China’s National Development and Reform Commission (NDRC) responded to questions regarding “Energy label implementation rules for small and medium-sized three-phase asynchronous motor”. The questions and answers are as follows.

 

Question 1: Is it not necessary to affix an energy label to motors that are not covered by General Rule 1.2(1), such as fan motors?

Question 2: According to the energy efficiency standard GB18613-2020, in addition to three-phase asynchronous motors, there are also single-phase asynchronous motors and motors for air conditioner fans. Do the latter two motor types have corresponding energy label implementation rules?

Answers: “Energy label implementation rules for small and medium-sized three-phase asynchronous motor” stipulates that exempted motors are those that are fully integrated with other equipment such as fans and cannot be tested independently. If a company’s product meets this characteristic, it is excluded from application scope and does not need to affix energy label.

In addition, “Energy label implementation rules for small and medium-sized three-phase asynchronous motor” mainly apply to relevant general-purpose three-phase asynchronous motors or general-purpose explosion-proof three-phase asynchronous motors. Single-phase asynchronous motors and motors for air conditioner fans are not in application scope, and there are no corresponding implementation rules at present.

 

Additional information from Enviliance

On May 17, 2021, China’s Development and Reform Commission and Administration of Market Supervision promulgated “Energy label implementation rules for small and medium-sized three-phase asynchronous motor” (revised version). Its application scope is as follows

It applies to the use, notification and public notice of energy label for general-purpose motors or general-purpose explosion-proof motors with rated voltage of 1000V or less, 50Hz three-phase AC power supply, rated output of 0.75kW~375kW, 2-pole, 4-pole, 6-pole, 8-pole, single-speed sealed self-cooled, N-design, continuous operation method.

Not applicable to the following motors

1) Motors that are completely integrated with other equipment such as pumps, fans, compressors, gearboxes and cannot be tested separately and independently.

2) Motors that are specifically designed to drive special machinery.

3) Motors specially designed for use in harsh power supply environments.

4) Motors used in special environmental conditions, such as motors installed and used at high altitudes (over 1000m), smoke exhaust motors (rated temperature over 250℃), motors for spinning, and motors for ships.

5) Explosion-proof motors manufactured in accordance with safety requirements and specific design constraints.

6) Motors specifically designed for variable operating conditions.

7) Conical rotor motors for electric hoists and construction machinery.

8) Motors in the motor housing of electromagnetic brakes.

9) Motors other than S1 and S3 operating modes where the operating period reaches 80% or more.

10) Wound rotor induction motor.

11) Variable pole multi-speed motors.

12) Submersible motors that operate while completely immersed in liquid.

13) Water-cooled motors.

14) Variable frequency motors with independent fan (IC416) (frequency with 50 Hz, no special requirements for winding coils)

 

The original version of “Energy label implementation rules for small and medium-sized three-phase asynchronous motor”(revised version) can be viewed at the following URL (in simplified Chinese).
https://zfxxgk.ndrc.gov.cn/web/iteminfo.jsp?id=18122

The original text of the questions and answers can be viewed at the following URL (in simplified Chinese)
https://www.ndrc.gov.cn/hdjl/lyxd/202107/t20210720_1290855.html?code=&state=123