A Standby Power System is an independent electric energy source that provides electric power of acceptable quality when the electricity failure or outage of the normal source. Within the NFPA 70 (or National Electrical Code (NEC)), there are four main types of standby power systems: Emergency Systems (Level 1 or Critical Life Safety Systems) - legally required for critical facilities and include systems that are essential for safety to human life; Optional Standby Systems - required by codes to light or power equipment whose failure could create hazards, hinder rescue, or hamper firefighting operations; Legally Required Standby Systems (Level 2 or Less Critical Systems) - equipment or systems that the business itself deems business critical; Critical Operations Power Systems - required in facilities that, if destroyed or incapacitated, can disrupt national security, the economy, public health, or safety.
Related Definitions in the Project: The Electrical Engineering; Energy Definitions
