A fusible link is a mechanical component that breaks when exposed to a specific temperature. They open and close doors, dampers, vents, and windows in fire detection systems. When the ambient temperature reaches a specified level, these linkages are triggered.
What was the motivation for the creation of Fusible Links?
A new application as the ultimate safety valve in steam boilers was discovered as a result of
the development of steam boilers and steam engines. Fusing plugs were created to combat the frequent explosions that plagued early steam engines. When the steam temperature reached too high, a safety valve was opened.
Between 1860 and 1890, the requirement for fire detection systems (alarms and sprinklers) prompted the invention of all modern fire detection fusible linkages.
A galvanized smoke ventilation system with a fusible link was recently installed by SFE Services. Because these fire-detectable fusible linkages are meant to react swiftly in the event of a rapid temperature rise, it's critical to arrange them in the right area and keep their bulk to a minimum, as their breaking time is proportional to their mass.
SFE Services suggests changing the fusible links during yearly vent maintenance to decrease the possibility of unintentional opening due to creep or oxidation of metal parts. For a free survey of your fire safety needs please contact one of our experts today.
Photo: SFE Services Smoke Ventilation installation
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