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Pressure switch location for fixed fire suppression systems - DEV imca
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Pressure switch location for fixed fire suppression systems

The United States Coast Guard has published the following report regarding an engine room fire in a vessel. The safety alert addresses the location of fire suppression system pressure switches aboard vessels. These critical components sense the activation of the system and then electrically secure the ventilation systems operating in the protected space. Securing the ventilation is essential in extinguishing a fire onboard a vessel. It assists in isolating the fire within the space, minimizes the introduction of additional oxygen to fuel the fire and prevents the loss of fire suppression agents from the space.

Recently, a vessel with an installed fixed COâ‚‚ fire suppression system suffered extensive damage due to a fire that started in the engine room. During the fire-fighting efforts the crew reported that the engine room ventilation could not be secured. A post incident damage survey of the vessel revealed that the pressure switch used to secure the ventilation was located within the engine room.

Members may wish to check the location of these switches onboard their vessels, and ensure that they are properly located.

The report can be downloaded from uscg.mil/hq/cg5/TVNCOE/Documents/SafetyAlerts/PressureSwitch.pdf

Safety Event

Published: 4 April 2013
Download: IMCA SF 05/13

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IMCA Safety Flashes summarise key safety matters and incidents, allowing lessons to be more easily learnt for the benefit of all. The effectiveness of the IMCA Safety Flash system depends on Members sharing information and so avoiding repeat incidents. Please consider adding safetyreports@imca-int.com to your internal distribution list for safety alerts or manually submitting information on incidents you consider may be relevant. All information is anonymised or sanitised, as appropriate.

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IMCA makes every effort to ensure the accuracy and reliability of the data contained in the documents it publishes, but IMCA shall not be liable for any guidance and/or recommendation and/or statement herein contained. The information contained in this document does not fulfil or replace any individual’s or Member's legal, regulatory or other duties or obligations in respect of their operations. Individuals and Members remain solely responsible for the safe, lawful and proper conduct of their operations.