GB/T 25090-2010 Step-down power saving device for asynchronous motor at light load

GB/T 3797-2005 Electrical control assemblies GB/T 3906-2006 Alternating-current metal-enclosed switchgear and controlgear for rated voltages above 3.6 kV and up to and including 40.5 kV GB 7251.1-2005 Low-voltage switchgear and control gear assemblies—Part 1:Type-tested and partially type-tested assemblies GB/T 11022-1999 Common specifications for high-voltage switchgear and control gear standards GB/T 14549-1993 Quality of electric energy supply—Harmonics in public supply network GB 17625.1-2003 Electromagnetic compatibility—limits—Limits—for harmonic current emissions(equipment input current≤16A per phase GB/Z 17625.6-2003 Electromagnetic compatibility—Limits—Limitation of emission of harmonic currents in low-voltage power supply systems for equipment with rated current greater than 16A GB/T 191-2000 Packaging—Pictorial marking for handling of goods GB/T 191-2008 Packaging—Pictorial marking for handling of goods GB/T 2423.1-2001 Environmental testing for electric and electronic products—Part 2:—Test methods Tests A:Cold GB/T 2423.1-2008 Environmental testing for electric and electronic products—Part 2:Test methods—Tests A:Cold GB/T 2423.2-2001 Environmental testing for electric and electronic products—Part 2:Test methods-Tests B:Dry heat GB/T 2423.2-2008 Environmental testing for electric and electronic products—Part 2:Test methods—Tests B:Dry heat GB/T 2423.3-1993 Basic environmental testing procedures for electric and electronic products—Test Ca:Damp heat, steady state GB/T 2423.3-2006 Environmental testing for electric and electronic products—Part 2:Testing method—Test Cab:Damp heat, steady state GB/T 2423.3-2016 Environmental testing—Part 2:Testing method—Test Cab:Damp heat,steady state GB 4208-1993 Degrees of protection provided by enclosure (IP code) GB/T 4208-2008 Degrees of protection provided by enclosure(IP code) GB/T 4208-2017 Degrees of protection provided by enclosure(IP code) GB/T 191-2025 Graphical symbols marking for handling and storage of packages