Hospital meets critical power needs

摘要

Phoenix Children's Hospital in Phoenix is both a healthcare facility and a high-rise building. As such, the facility's emergency power supply system (EPSS) must meet emergency standby requirements for both types of facilities. To meet these requirements the facility has a remote central energy plant housing most of its EPSS. The emergency power supply (EPS) consists of three 2 MW generators and medium-voltage paralleling gear and distribution. Unit substations are located throughout the facility with automatic transfer switches (ATS) located downstream of unit substation. Any of the three 2 MW generators can accommodate the requirements of NFPA 70 and NFPA 99 for the life safety branch and critical branch for the entire facility, There are also a variety of stored emergency power supply systems (SEPPSS).