CEL-021. Power Transformer
China
Power Transformers
Mandatory
Comparative Label
Entered into force, New
2010
May 2021
Electricity
CEL-027. Microcomputers
China
Computers
Mandatory
Comparative Label
Entered into force, Revised
2012
2013
May 2021
Electricity
CQC31-045201-2012. CQC Mark Certification - Computers
China
Computers
Voluntary
Endorsement Label
Entered into force, Revised
2003
2012
June 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 28380-2012 Minimum allowable values of energy efficiency and energy grades for microcomputers
China
Computers
Mandatory
Minimum Performance Standard
Entered into force, Revised
2012
2016
June 2021
Electricity