GB/T 21207-2007

GB/Z 40776-2021 Low-voltage switchgear and controlgear—Fire risk analysis and risk reduction measures GB/Z 41909-2022 Low-voltage switchgear and controlgear—Electromagnetic compatibility assessment for switchgear and controlgear and their assemblies GB/Z 41912-2022 Low-voltage switchgear and controlgear—Guidance for the development of embedded software GB/Z 43029-2023 Switchgear and controlgear and their assemblies for low-voltage—Energy efficiency GB/Z 43030-2023 Low-voltage switchgear and controlgear—Security aspects GB/Z 43533-2023 Integration of internal arc-fault mitigation systems in power switchgear and controlgear assemblies (PSC-assemblies) according to GB/T 7251.2—2023 GB/Z 14048.24-2024 Low-voltage switchgear and controlgear—Part 7-5: Ancillary equipment—Terminal blocks for aluminium conductors GB/T 7251.4-2006 Low-voltage switchgear and controlgear assemblies - Part 4 ：Particular requirements for assemblies for construction sites（ACS）