Glossary
ERP fire safety – Glossary and references

AES (emergency power supply)

A device that supplies electrical power to all or part of an SSI or emergency lighting system (SES) to enable it to perform its functions. A safety power supply must comply with the provisions of standard NFS 61-940.

General alarm

Audible signal to warn occupants to evacuate. The general alarm can be immediate or delayed.

Selective general alarm

General alarm limited to informing certain categories of personnel in a facility (e.g. care facilities, hospitals).

Restricted alarm

Audible and visual signal distinct from the general alarm signal, intended to warn the personnel designated to operate the alarm.

Alert

Call an emergency service (remote...