![]() ![]() Optional Standby Power Systems are not required by code, but will provide backup power to operations that the building owner deems important to keep electrified during normal power outages. Systems such as heating, ventilation, communications, building automation, and hospital equipment may be part of the Legally Required Standby System. These can be thought of as systems that enhance the act of egress and improve firefighter operations, but are not critical to life safety. They are required by code, but they can share system components - they are not required to be fully separate systems like Emergency Power Systems. Legally Required Standby Power Systems also provide automatic backup power in the event of normal power loss, but they have 60 seconds to engage. Another important thing to remember is that emergency power systems must be completely separate this means that they shall have their own conduit runs, their own panels, their own transfer stations, etc. Simply put, anything that will protect the lives of the building occupants should be on Emergency Power. They are required by code and shall provide power within 10 seconds to all life safety systems such as egress lighting, smoke evacuation, fire alarm systems, elevators, etc. In the United States, backup power systems are governed by NFPA 110, Standard for Emergency and Standby Power Systems.Įmergency Power Systems provide automatic backup power in the event of normal power loss. We will describe the systems here, but it is important to note that code officials and other authorities having jurisdiction can require that certain elements and devices be on a system other than what we call for here. The difference between the 3 types of backup power is often confusing. Generator Safety - Prevent Back-feeding. ![]()
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