NFIRS 5.0 Element: ‘Detector Power’

Définition : Identifies the type of power supplying the detector.
Purpose : The reliability of detectors present at a fire is an important part of detector performance, especially if maintenance was poor or a power failure occurred before or during the fire.
Entry : Check or mark the box best indicating the type of power supply used by the detector.

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 ‘Detector Power’ element

Detector Power  Code 
Battery Only 1
Hardwire Only 2
Plug-in 3
Hardwire With Battery Backup 4
Plug-in With Battery Backup 5
Mechanical 6
Multiple Detectors And Power Supplies 7
Detector Power Supply – Other 0
Undetermined U

Topic: NFIRS

Last Updated on March 25, 2023