wondoor.com shows a video of the doors in operation. Normally an alarm or sprinkler system activates it and the door closes
same way they work in an office building or any other building
in schools, hospitals, work places and many more places....
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Firefighters use it to help break open doors in a fire.
the doors also, its "light MY fire"
Fire doors are used to stop fires or smoke from spreading into different areas of a building. Some fire doors have furry strips round the edges, these are called intumescent strips. The fibres in the strips swell when they get hot and stop smoke going round the edges of the door. The doors themselves are made up of layers of fireproof material which means that it takes longer to burn through the door. Most common fire doors protect the rest of the building for around half an hour only because of the intsumescent strips and the fireproof material actually on the doors.
fire doors will prevent fire from speeding for only a certain amount of time, they are rated for different times. basically the create a wall that will stop the fire.
you use fire doors for when there is fire . fire door is for stop a smoke and fire for a few minuts for get people out and firer man to come and stop fire by water for stop fire not become bigger.
fire doors are normally found in a public building between certain sections of the building
There are many different kinds of fire doors and not all of them are tied to the alarm system. Some fire doors will only close when there is enough heat to sever a fusible link. However, as a general rule, automatically closing fire doors that are latched open with electrical controls would release the latch and close the relevant fire doors upon triggering of the fire alarm by any initiating device.
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