CEL-021. Power Transformer
China
Power Transformers
Mandatory
Comparative Label
Entered into force, New
2010
May 2021
Electricity
CEL-025. Household and Similar Microwave Ovens
China
Microwaves
Mandatory
Comparative Label
Entered into force, Revised
2011
2017
July 2021
Electricity
CQC31-461212-2020. Energy Conservation Certification Rules for Power Transformer
China
Power Transformers
Voluntary
Endorsement Label
Entered into force, Revised
2003
2020
May 2021
Electricity
CQC31-461219-2010. CQC Mark Certification - Power Transformer
China
Power Transformers
Voluntary
Endorsement Label
Entered into force, Revised
2003
2010
August 2018
Electricity
CQC31-462271-2022 Energy Conservation Certification Rules for High-Voltage/Low-Voltage Prefabricated Substations
China
Power Transformers
Voluntary
Endorsement Label
Entered into force, New
2022
October 2022
Electricity
GB 20052-2024 Energy efficiency limit values and energy efficiency grades for power transformers
China
Power Transformers
Mandatory
Minimum Performance Standard
Entered into force, Revised
2006
2024
December 2024
Electricity
GB 21456-2024 Minimum allowable values of the energy efficiency and energy efficiency grades for household and similar kitchen appliances
Asia and Pacific, China
Induction Cookstoves or Hobs, Rice Cookers, Microwaves
, Electric Kettles + - 1 More
Mandatory
Minimum Performance Standard
Entered into force, Revised
2008
2024
September 2025
Electricity
GB 24849-2017 Minimum Allowable Values of Energy Efficiency and Energy Efficiency Grades for Household and Similar Microwave Ovens
China
Microwaves
Mandatory
Minimum Performance Standard
Entered into force, Revised
2010
2018
May 2021
Electricity