NFIRS 5.0 Element: ‘Automatic Extinguishment System (AES) Operation’

Définition : The operation and effectiveness of the automatic extinguishing system relative to the area of fire origin.
Purpose : Knowing the usage, reliability, and effectiveness of AESs is important to the understanding of fire control and life safety in buildings with and without extinguishing equipment.
Entry : Check or mark the box that indicates if the AES operated and was or was not effective. Effective does not necessarily mean complete extinguishing, but the system must at least contain and control the fire until the fire department can complete extinguishment.

Element Specification

 Specification   Value 
Requirement Optional
Expected Length 1
Element Type Coded Field – The coded field relating to an entry in the code table. Most coded fields allow for Plus+ One codes. For these fields the expected length of the coded entry is depicted as (National length OR Plus+ One length). Only fields with this notation in the expected length column allow for Plus+ One definitions. If the user has not provided information, an empty field should be transmitted.


Here are the NFIRS codes for the ‘Automatic Extinguishment System (AES) Operation’ element

Automatic Extinguishment System (AES) Operation  Code 
System Operated And Was Effective 1
System Operated And Was Not Effective 2
Fire Too Small To Activate System 3
System Did Not Operate 4
Operation Of Aes, Other 0
Undetermined U

Topic: NFIRS

Last Updated on March 25, 2023