December 2010,the first AtmosphericPressure FullySealed Air-insulatedSwitchgear was put into service in Europe.

2010
June 2014,the technical scheme ofatmospheric pressure sealed airinsulation switchgear was included inthe nationalarchitecture standarddesign atlas"Electrical Design andInstallation of Super high-risebuildings"

2014
November 2017,the atmospheric pressurefully sealed air-insulated technology wasselected into the National Key Energy-savingand Low-carbon Technology PromotionCatalogue by the National Development andRefomm Commission.

2017
June 2020,DistributionNetwork CompletelyReplace Sf6 InsulatedSwitchgearAtmosphericPressure Fully Sealed Air-insulated SwitchgearTechnology was selected bythe National Developmentand Reform Commissioninto the Green TechnologyPromotion Catalog

2020
Global sales haveexceeded 50000 units

2024