Fire Damper Inspection
A fire damper can be defined as a device installed in ducts and air transfer opening
of an air distribution or smoke control system designed to close automatically upon
detection of heat. It also serves to interrupt migratory airflow, resist the passage of
flame, and maintain the fire-rated separation integrity. Its primary function is to
prevent the passage of flame from one side of a fire-rated separation to the other.
Most fire dampers are installed in areas of the building that are not easily
accessible. Fire dampers are installed in penetrations of fire-rated walls and floors
as required by the building code, and access to the damper itself is normally
through an improperly sized access door.
Fire protection systems may help handle or extinguish the fire, support occupant
evacuation, and protect the property from harm. These programs may be split into
active fire protection and passive fire protection.
Included in this passive fire protection system, fire/smoke rated walls and obstacles
compartmentalize the building and block the spread of smoke and fire to the whole
building. While entering these obstacles with ductwork ought to be prevented if
possible, occasionally it's necessary.
There are three different types of those dampers: fire dampers, smoke dampers,
and combination fire/smoke dampers. Fire Damper Inspection is developed to
prevent the spread of fires across a ranked barrier. A fire damper is installed inside
the duct in which the duct intersects the barrier. When triggered, they operate with
a heat-sensitive device that melts and causes the damper parts to off.
A smoke damper may also be installed inside the duct and triggered by a smoke
sensor signal within the damper. Upon detection of smoke, then the actuator will
automatically close the damper components.
A combination fire/smoke damper will close upon detection of fire or smoke. An
FSD may also contain an electrical heat discharge apparatus, which is flashed. It
allows the damper to close