GB 20052-2020
Minimum allowable values of energy efficiency and the energy efficiency grades for power transformers

Standard No.

GB 20052-2020

Language

Chinese

Release Date

2020

Published By

国家市场监督管理总局、中国国家标准化管理委员会

Lastest

GB 20052-2020

Replace

GB 24790-2009 GB 20052-2013

GB 20052-2020 history

• 2020 GB 20052-2020 Minimum allowable values of energy efficiency and the energy efficiency grades for power transformers
• 2013 GB 20052-2013 Minimum allowable values of energy efficiency and energy efficiency grades for three-phase distribution transformers
• 2006 GB 20052-2006 The minimum allowable values of energy efficiency and the evaluating values of energy conservation for three-phase distribution transformers

GB 20052-2020 Minimum allowable values of energy efficiency and the energy efficiency grades for power transformers has been changed from GB 24790-2009 Minimum allowable values of energy efficiency and the energy efficiency grades for power transformers.