DL/T 549-1994 The basic testing methods for an electric energy metering cabinet

DL 447 GB/T 11022-1999 Common specifications for high-voltage switchgear and control gear standards GB/T 11022-2011 Common specifications for high-voltage switchgear and controlgear standards GB/T 11022-2020 Common specifications for high-voltage alternating-current switchgear and controlgear standards GB 1207-1997 Voltage transformers GB 1207-2006 Inductive voltage transformers GB 1208-1997 Current transformers GB 1208-2006 Current transformers GB 2706 GB 311.1-1997 Insulation co-ordination for high voltage transmission and distribution equipment GB/T 311.1-2012 Insulation co-ordination—Part 1:Definitions,principles and rules GB/T 311.2-2002 Insulation co-ordination—Part 2:Application guide for insulation co-ordination for high voltage transmission and distribution equipment GB/T 311.2-2013 Insulation co-ordination—Part 2:Application guide GB/T 311.3-2007 Insulation co-ordination—Part 3:Procedures for high-voltage direct current(HVDC) converter stations GB/T 311.3-2017 Insulation co-ordination—Part 3:Procedures for high-voltage direct current(HVDC) converter stations GB/T 311.4-2010 Insulation co-ordination—Part 4:Computational guide to insulation co-ordination and modeling of electrical networks GB/T 3309-1989 Mechanical test at ambient temperature for high-voltage switchgear GB 3906-1991 A.C. metal-enclosed switchgear for rated voltages of 3～35kV 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/T 3906-2020 Alternating-current metal-enclosed switchgear and controlgear for rated voltages above 3.6 kV and up to and including 40.5 kV GB 7251.1-1997 Low-voltage switchgear and control gear assemblies—Part 1:Type-tested and partially type-tested assemblies GB 7251.1-2005 Low-voltage switchgear and control gear assemblies—Part 1:Type-tested and partially type-tested assemblies GB/T 7251.1-2013 Low-voltage switchgear and controlgear assemblies—Part 1:General rules GB/T 7251.1-2023 Low-voltage switchgear and controlgear assemblies—Part 1:General rules GB 7251.2-1997 Low-voltage switchgear and control gear assemblies—Part 2:Particular requirements for busbar trunking systems(busways) GB 7251.2-2006 Low-voltage switchgear and controlgear assemblies—Part 2:Particular requirements for busbar trunking systems (busways) GB/T 7251.2-2023 Low-voltage switchgear and controlgear assemblies—Part 2:Power switchgear and controlgear assemblies GB 7251.3-1997 Low-voltage switchgear and control gear assemblies—Part 3:Particular requirements for low-voltage switchgear and control gear assemblies intended to be installed in places where unskilled persons have access for their use—Distribution boards GB/T 7251.3-2006 Low-voltage switchgear and control gear assemblies—Part 3:Particular requirements for low-voltage switchgear and control gear assemblies intended to be installed in places where unskilled persons have access for their use—Distribution boards GB/T 7251.3-2017 Low-voltage switchgear and controlgear assemblies—Part 3:Distribution boardsintended to be operated by ordinary persons(DBO) GB 7251.4-1998 Low-voltage switchgear and control gear assemblies—Part 4:Particular requirements for assemblies for construction sites(ACS) GB/T 7251.4-2006 Low-voltage switchgear and control gear assemblies—Part 4:Particular requirements for assemblies for construction sites(ACS) GB/T 7251.4-2017 Low-voltage switchgear and controlgear assemblies—Part 4:Particular requirements for assemblies for construction sites(ACS) GB 7251.5-1998 Low-voltage switchgear and control gear assemblies—Part 5:Particular requirements for assemblies intended to be installed outdoors in public places—Cable distribution cabinets (CDCs)for power distribution in networks GB/T 7251.5-2008 Low-voltage switchgear and controlgear assemblies—Part 5:Particular requirements for assemblies for power distribution in public networks GB/T 7251.5-2017 Low-voltage switchgear and controlgear assemblies—Part 5:Assemblies for power distribution in public networks GB/T 7251.6-2015 Low-voltage switchgear and controlgear assemblies—Part 6:Busbar trunking systems(busways) GB/T 7251.7-2015 Low-voltage switchgear and controlgear assemblies—Part 7:Assemblies for specific applications such as marinas,camping sites,market squares,electric vehicles charging stations GB/T 7251.8-2005 Low-voltage switchgear and controlgear assemblies—General technology requirement for intelligent assemblies GB/T 7251.8-2020 Low-voltage switchgear and controlgear assemblies—Part 8:General technical requirements for intelligent assembly GB/T 7251.10-2014 Low-voltage switchgear and controlgear assemblies—Part 10:Guidance to specifying assemblies GB/T 7251.12-2013 Low-voltage switchgear and controlgear assemblies—Part 2:Power switchgear and controlgear assemblies GB 763 GB 9466 JB 616 SD 109 GB/T 7251.7-2025 Low-voltage switchgear and controlgear assemblies—Part 7:Assemblies for specific applications such as marinas,camping sites,market squares,electric vehicle charging stations GB/T 7251.10-2025 Low-voltage switchgear and controlgear assemblies—Part 10:Guidance to specifying assemblies GB/T 7251.5-2025 Low-voltage switchgear and controlgear assemblies—Part 5:Assemblies for power distribution in public networks