Defect Trends in Fire Alarm Systems: A Basis for Risk-Based Inspection (RBI) Approaches

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F49777513%3A23220%2F24%3A43973921" target="_blank" >RIV/49777513:23220/24:43973921 - isvavai.cz</a>

Result on the web

<a href="https://www.mdpi.com/2313-576X/10/4/95" target="_blank" >https://www.mdpi.com/2313-576X/10/4/95</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.3390/safety10040095" target="_blank" >10.3390/safety10040095</a>

Result language

angličtina

Original language name

Defect Trends in Fire Alarm Systems: A Basis for Risk-Based Inspection (RBI) Approaches

Original language description

This article presents a comprehensive statistical evaluation of defect frequency in fire alarm systems under real operating conditions, focusing on risk-based factors. The aim is not to introduce acomplete RBI approach but rather to assess defect trends that can inform future RBI-based inspection strategies. The study categorizes and evaluates defects by frequency, particularly examiningcomponents such as cable and wire systems, acoustic signal devices, and the impact of detector contamination. These findings establish a foundation for developing tailored risk-based inspectionand predictive maintenance strategies. A three-stage explanatory research design was employed, analyzing 4629 inspection reports with findings verified through expert surveys and cross-sampleanalysis. Results indicate that certain components, including acoustic devices and detectors, exhibit a significant increase in defects after 10 years, especially under challenging environmental conditions. Additionally, while ring bus technology supports less frequent functional testing, cable and wire systems require heightened attention in the early operational years. The study also identifies statisti- cally significant trends and their potential for application to a broader system population, supporting enhanced RBI-based maintenance practices. These insights contribute to refining current maintenance approaches and offer practical recommendations for optimizing inspection routines based on risk factors. The article does not propose a system overhaul but lays essential groundwork for further research and improvement in fire alarm system reliability through targeted, risk-informed practices.

Czech name

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Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

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OECD FORD branch

20201 - Electrical and electronic engineering

Project

—

Continuities

S - Specificky vyzkum na vysokych skolach

Publication year

2024

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Safety

ISSN

2313-576X

e-ISSN

2313-576X

Volume of the periodical

10

Issue of the periodical within the volume

4

Country of publishing house

CH - SWITZERLAND

Number of pages

23

Pages from-to

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UT code for WoS article

001386925400001

EID of the result in the Scopus database

2-s2.0-85213267352