Event Tree Reliability Analysis of Electrical Power Generation Network using Formal Techniques

Abdelghany, Mohamed; Ahmad, Waqar; Tahar, Sofiène

doi:10.1109/epec48502.2020.9320092

Cited by 7 publications

(1 citation statement)

References 15 publications

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“…In the figure, GES is triggered automatically by the following detectors: D11, D12, D13circuit SL1 and D21, D22-circuit SL2. In light of using gas to extinguish a server room fire and reduce the probability of a false alarm, a coincidental or dual-sensor alarm triggering method from different detection lines SL1 and SL2 was employed (e.g., sensors D12circuit SL1 and D21-circuit SL2) [9,112]. GES offers a manual method of starting and stopping the entire process through the START and STOP buttons (SSEG) located within the monitored room (STOP) and next to the room entrance (START).…”

Section: The Application Of Fire Alarm and Gas Extinguishing Systems ...mentioning

confidence: 99%

The Dynamic Change in the Reliability Function Level in a Selected Fire Alarm System during a Fire

Paś,

Klimczak,

Rosiński

et al. 2024

Sensors

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This article discusses fundamental issues associated with the functional reliability of selected fire alarm systems (FASs) in operation during building fires. FASs operate under diverse external or internal natural environmental conditions, and the operational process of FAS should take into account the impacts of physical phenomena that occur during fires. Their operation is associated with the constant provision of reliability. FAS designers should also consider the system’s reliability when developing fire control matrices, tables, algorithms, or scenarios. All functions arising from an FAS control matrix should be implemented with a permissible reliability level, RDPN(t), prior to, as well as during, a fire. This should be assigned to the controls saved in the fire alarm control unit (FCP). This article presents the process by which high temperatures generated during a fire impact the reliability of FAS functioning. It was developed considering selected critical paths for a specific scenario and the control matrix for an FAS. Such assumptions make it possible to determine the impact of various temperatures generated during a fire on the reliability of an FAS. To this end, the authors reviewed that the waveform of the R(t) function changes for a given FAS over time, Δt, and then determined the fitness paths. The critical paths are located within the fire detection and suppression activation process, using FAS or fixed extinguishing devices (FEDs), and the paths were modeled with acceptable and unacceptable technical states. The last section of this article defines a model and graph for the operational process of a selected FAS, the analysis of which enables conclusions to be drawn that can be employed in the design and implementation stages.

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Section: The Application Of Fire Alarm and Gas Extinguishing Systems ...mentioning

confidence: 99%