Fire safety systems — detection, suppression

What you'll learn

1. 1

   Fire detection systems are like a smoke alarm for a whole building — they spot smoke or heat and sound the alarm.

2. 2

   What does a fire detection system do first?

3. 3

   Here are two common detectors: a smoke detector (left) and a heat detector (right). Both send a signal when they sense danger.

4. 4

   Let's trace how a detection system works in a real building.

5. 5

   Now you're the system designer — tap the right detector for each room.

6. 6

   Which detector is best for a kitchen where cooking smoke is normal?

7. 7

   Suppression systems put out the fire — like a sprinkler that sprays water when it gets hot enough.

8. 8

   What makes a sprinkler start spraying?