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

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

GB 1207-2006 Inductive voltage transformers GB 1208-2006 Current 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 4703-2007 Capacitor voltage transformers 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 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 16934-1997 Electric energy metering cubicle GB/T 17215.301-2007 Particular requirements for 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 17215.3222008 GB/T 17215.323-2008 Electricity metering equipment(a.c.)—Particular requirements—Part 23:Static meters for reactive energy(classes 2 and 3) GB 50058-2014 Code for design of electrical installations in explosive atmospheres DL/T 825-2002 Instal lation and wiring connection rules for Electric energy metering device