Emergency System

Definition

National Electrical Code Article 700.1 defines emergency systems as "those systems that are legally required and classed as emergency by municipal, state, federal or other codes, or by any governmental agency having jurisdiction. These systems are intended to automatically supply illumination, power, or both, to designated areas and equipment in the event of failure of the normal supply or in the event of accident to elements of a system intended to supply, distribute, and control power and illumination essential for safety to human life."

Purpose

Emergency systems are designed to provide critical power and lighting during power outages or system failures, ensuring the safety of occupants in buildings and facilities. They are essential for maintaining operations in hospitals, emergency shelters, and other critical infrastructure.

Examples of Use

• Emergency lighting systems in commercial buildings that activate during power outages.
• Backup power systems in hospitals to keep life-saving equipment operational.
• Fire alarm and sprinkler systems that remain functional during electrical failures.

Related Terms

• Backup Generator: A device that provides temporary power during an outage.
• Uninterruptible Power Supply (UPS): A battery backup system that provides immediate power during short-term outages.
• Life Safety Systems: Systems that protect human life, including fire alarms, emergency lighting, and evacuation systems.

Notes

• Emergency systems must be regularly tested and maintained to ensure they function correctly in an emergency.
• Compliance with local, state, and federal regulations is crucial for the installation and operation of emergency systems.