Abstract The reliability of fire (point) detection systems in office buildings, in Victoria, Australia, was determined through fault tree analysis. Following the literature review and collected data from surveys, a quantitative analysis was undertaken. Fault tree analysis was used as a deductive analysis of the likelihood of the failure of fire (point) detection system in office buildings through mapping the relationship between failure, sub-systems and safety design elements using Boolean logic. The failure probabilities were determined for fifteen components and were compared with data from the literature. This study shows an estimated reliability of fire (point) detection range from 83.17% to 99.74%. This compares well with fire incident data from Tokyo, Japan and Melbourne, Australia. The major components in fire (point) detection system failures are detector heads and detection zone isolation. Recommendations are given to improve the system reliability.

中文翻译：

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澳大利亚写字楼火灾（点）检测系统的可靠性——故障树分析

摘要 通过故障树分析确定了澳大利亚维多利亚写字楼火灾（点）检测系统的可靠性。在查阅文献并从调查中收集数据之后，进行了定量分析。通过使用布尔逻辑映射故障、子系统和安全设计元素之间的关系，故障树分析被用作对办公楼火灾（点）检测系统故障的可能性的演绎分析。确定了 15 个组件的失效概率，并与文献中的数据进行了比较。该研究表明，火灾（点）检测的估计可靠性范围为 83.17% 至 99.74%。这与来自日本东京和澳大利亚墨尔本的火灾事件数据相得益彰。火（点）探测系统故障的主要组成部分是探测器头和探测区隔离。给出了提高系统可靠性的建议。