GB/T 7251.3-2017

Active

Low-voltage switchgear and controlgear assemblies—Part 3: Distribution boards intended to be operated by ordinary persons（DBO）

低压成套开关设备和控制设备 第3部分: 由一般人员操作的配电板（DBO）

Standard Type
GBT
ICS
29.130.20
CCS
K31
Status
Active
Issue Date
2017-11-01
Implementation
2018-05-01
Centralized Committee
中国电器工业协会
Issuing Authority
中华人民共和国国家质量监督检验检疫总局、中国国家标准化管理委员会

Application Summary AI generated

GB/T 7251.3-2017 specifies technical requirements for low-voltage distribution boards (DBO) designed for operation by non-professional users, covering construction, performance, and safety testing. It applies to residential, commercial, and light industrial buildings where untrained individuals may access and operate the equipment, such as household electrical panels or small office distribution boards. The standard ensures safe and reliable operation under normal use, including protection against electric shock and mechanical hazards.

Related Standards

GB/T 19334-2003 Dimension of low-voltage switchgear and controlgear--Standardized mounting on rails for mechanical support of electrical devices in switchgear andcontrolgear installations GB/Z 40776-2021 Low-voltage switchgear and controlgear—Fire risk analysis and risk reduction measures GB/Z 41912-2022 Low-voltage switchgear and controlgear—Guidance for the development of embedded software GB/Z 41909-2022 Low-voltage switchgear and controlgear—Electromagnetic compatibility assessment for switchgear and controlgear and their assemblies GB/Z 43030-2023 Low-voltage switchgear and controlgear—Security aspects GB/Z 43029-2023 Switchgear and controlgear and their assemblies for low-voltage—Energy efficiency 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
Transparency note: The application summary and key sentences on this page were automatically generated by AI from the standard's original text. This content has not been human-verified and should not be used for compliance or regulatory purposes. Always refer to the official standard document from the issuing authority.