GB/T 25099-2010 Step-down power saving device on distribution networks

GB/T 1094.11-2007 Power transformers—Part 11:Dry-type transformers 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 1094.2-1996 Power transformers—Part 2:Temperature rise GB/T 1094.2-2013 Power transformers—Part 2:Temperature rise for liquid-immersed transformers 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 12325-2003 Power quality—Admissible deviation of supply voltage GB/T 12325-2008 Power quality—Deviation of supply voltage GB/T 191-2025 Graphical symbols marking for handling and storage of packages