Discussion about Basic Requirements for the Power Supply for Data Centers

Wang Ye Tu Qiang Cao Chengshu（East China Architectural Design & Research Institute Co., Ltd., Shanghai 200002, China）

　　Abstract　Racks with high power density are growing continuously with the growing of data centers, thus resulting in a new challenge to the power supply and cooling system. The classification of data centers and power supply requirements by Telecommunications Infrastructure Standard for Data Centers（ANSI / TIA - 942 - 2005 ）; the electricity load and the distribution system reliability of data centers are analyzed； the recommended scheme for distribution system of each levels of data centers are presented.

Key　words　Data center Rack Power density Power supply requirement

 摘 要 数据中心在不断发展，高功率密度的机架也在不断发展，这对电源供给、冷却系统等提出了新的挑战。介绍了《数据中心电信基础设施标准》（ANSI / TIA - 942 - 2005）对数据中心分级及对电源的要求；分析了数据中心的用电负荷，配电系统的可靠性；对各级数据中心配电系统提出了推荐性方案。

关键词 数据中心 机架 功率密度 电源要求