GB 7251.2-1997
Low-voltage switchgear and controlgear assemblies. Part 2: Particular requirements for busbar trunking systems (busways)
2015-01
- Standard No.
- GB 7251.2-1997
- Language
- Chinese
- Release Date
- 1997
- Published By
- General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China
- Replace By
- GB 7251.2-2006
- GB/T 7251.12-2013
- Lastest
- GB 7251.6-2015
- GB/T 7251.12-2013
- Scope
- This standard is also applicable to the main busbar system that supplies power for lighting through tap-off units, but it is not applicable to the line system that complies with IEC570.
GB 7251.2-1997 history
- 2015 GB 7251.6-2015 Low-voltage switchgear and controlgear assemblies.Part 6:Busbar trunking systems (busways)
- 2006 GB 7251.2-2006 Low-voltage switchgear and controlgear assemblies. Part 2: Particular requirements for busbar trunking systems (busways)
- 1997 GB 7251.2-1997 Low-voltage switchgear and controlgear assemblies. Part 2: Particular requirements for busbar trunking systems (busways)
GB 7251.2-1997 -All Parts
GB 7251.1-2013 Low-voltage switchgear and controlgear assemblies.Part 1:General rules
GB 7251.12-2013 Low-voltage switchgear and controlgear assemblies.Part 2:Power switchgear and controlgear assemblies
GB 7251.2-2006 Low-voltage switchgear and controlgear assemblies. Part 2: Particular requirements for busbar trunking systems (busways)
GB 7251.3-2006 Low-voltage switchgear and controlgear assemblies. Part 3: Particular requirements for low-voltage switchgear and controlgear assemblies intended to be installed in places where unskilled persons have access for their use. Distribution boards
GB 7251.4-2006 Low-voltage switchgear and controlgear assemblies Part 4: Particular requirements for assemblies for construction sites (ACS)
GB 7251.5-2017
GB 7251.6-2015 Low-voltage switchgear and controlgear assemblies.Part 6:Busbar trunking systems (busways)