General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China
Latest
GB 50052-2009
Scope
This specification is applicable to the design of power supply and distribution systems at the user end of new construction, expansion and reconstruction projects.
GB 50052-2009 history
2009GB 50052-2009 Code for design electric power supply system
1995GB 50052-1995 Code for design of electric power supply systems