NFIRS 5.0 Element: ‘Detector Effectiveness’

Définition : The effectiveness of the fire detection equipment in alerting occupants.
Purpose : Information on the effectiveness of automatic detection equipment is important for understanding whether fire detection equipment is accomplishing the task for which it is designed.
Entry : Check or mark the box best describing the effectiveness of 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 Effectiveness’ element

Detector Effectiveness  Code 
Detector Alerted Occupants, Occupants Responded 1
Detector Alerted Occupants, Occupants Failed To Respond 2
There Were No Occupants 3
Detector Failed To Alert Occupants 4
Undetermined U

Relational Edit Rules for ‘Detector Effectiveness’

NFIRS defines relational edit rules to ensure data consistency and accuracy in its database. These are the rules for ‘Detector Effectiveness’.

Rule Group  Overview
Relational Edit Rule 75 If the detector operated, did it alert occupants?.

Transactions containing ‘Detector Effectiveness’

The value of this element is captured by the following transaction :

Need more NFIRS help?

Here are some other useful ressources to learn more about NFIRS.

NFIRS Codes Cheat SheetNFIRS CodingNFIRS ExamplesFDIDsPOCsNFIRS TransactionsNFIRS ModulesNFIRS ElementsNFIRS RulesNFIRS ReferenceNFIRS Compliant ?

You can also read this NFIRS 5.0 Complete Reference Guide, and NFIRS 5.0 Design Documentation in order to have a deeper understanding of NFIRS 5.0. Here are also NFIRS 5.0 Forms ready for you to download and use.

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Last Updated on April 28, 2023