DB31/T 618-2022 Electricity metering device configuration technical specification for power grid

DB31/T 618-2012 Electricity metering device configuration technical specification for power grid

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 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 7251.3-1997 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/T 11918.1-2014 Plugs,socket-outlet and couplers for industrial purposes—Part 1:General requirements GB/T 11918.2-2014 Plug, socket-outlets and couplers for industrial purposes—Part 2:Dimensional compatibility and interchangeability requirements for pin and contact-tube accessories GB/T 14549-1993 Quality of electric energy supply—Harmonics in public supply network GB/T 15284-2002 Particular requirements for multi-rate electricity meters GB/T 15284-2022 Multi-rate electricity meters—Particular requirements GB/T 16934-1997 Electric energy metering cubicle GB/T 16934-2013 Electric energy metering cubicle GB/T 17215.301-2007 Particular requirements for multi-function electricity meters GB/T 17215.301-2024 Electricity metering equipment(AC)—Particular requirements—Part 1:Multi-function electricity meters GB/T 17215.321-2008 Electricity metering equipment(a.c.)—Particular requirements—Part 21:Static meters for active energy(classes 1 and 2) GB/T 17215.321-2021 Electricity metering equipment (AC)—Particular requirements—Part 21:Static meters for active energy(classes A,B,C,D and E) GB/T 17215.323-2008 Electricity metering equipment(a.c.)—Particular requirements—Part 23:Static meters for reactive energy(classes 2 and 3) GB/T 17215.323-2022 Electricity metering equipment (AC)—Particular requirements—Part 23:Static meters for reactive energy(classes 2 and 3) GB/T 20840.1-2010 Instrument transformers—Part 1:General requirements GB/T 20840.2-2014 Instrument transformers—Part 2:Additional requirements for current transformers GB/T 20840.3-2013 Instrument transformers—Part 3:Additional requirements for inductive voltage transformers GB/T 20840.5-2013 Instrument transformers—Part 5:Additional requirements for capacitor voltage transformers DL/T 448-2016 The Technical Management Regulations for Electric Energy Measurement Devices DL/T 825-2021 GB/T 11918.1-2025 Plugs,fixed or portable socket-outlets and appliance inlets for industrial purposes—Part 1:General requirements GB/T 11918.2-2025 Plugs, fixed or portable socket-outlets and appliance inlets for industrial purposes—Part 2:Dimensional compatibility requirements for pin and contact-tube accessories