Understanding and Application of Code for Design Electric Power Supply Systems

Liu Dixian（China Southwest Architectural Design and Research Institute CORP. LTD，Chengdu 610081，China）

         Abstract In this article, the author gives his understanding and suggestions for the definition and application of power supply （including duplicated supply, emergency supply, stand-by electric source, distributed generation）, the determination of grades of vital loads in first grade loads, first grade loads and second grade loads as well as the requirements on power supply established in GB 50052-2009 Code for Design Electric Power Supply Systems.

        Key words　Duplicated supply　Emergency supply Stand-by electic source Load grade  Requirements on power supply　Vital load in first grade load

        摘　要　对 GB 50052 - 2009《供配电系统设计规范》中，电源（包括双重电源、应急电源、备用电源、分布式电源）的定义和应用；一级负荷中特别重要的负荷、一级负荷、二级负荷等级的确定及供电要求，给出作者自己的看法和建议。

        关键词　双重电源　应急电源　备用电源　负荷等级　供电要求　一级负荷中特别重要的负荷