How does fire sensor detect fire?
When smoke enters the optical chamber into the path of the light beam, some light is scattered by the smoke particles, and some of the scattered light is detected by the sensor. When the beam is less visible to the “eye” of the sensor, it sends an alarm signal to the Fire alarm control panel.
How does a fire detection system work?
A photoelectric smoke detector uses an infrared LED light beam to tell if there is smoke in the air. Over time, the sensor emits the light through the optical detector’s chamber. If the light detects numerous smoke particles passing through it, then an alarm is triggered.
What are the two types of fire detectors?
The two most commonly recognized smoke detection technologies are ionization smoke detection and photoelectric smoke detection. Ionization smoke alarms are generally more responsive to flaming fires.
What are fire evacuation procedures?
A fire emergency evacuation plan (FEEP) is a written document which includes the action to be taken by all staff in the event of fire and the arrangements for calling the fire brigade. It can include any relevant information in relation to the FEEP. Action on discovering a fire. Action on hearing the fire alarm.
What is a peep fire?
A Personal Emergency Evacuation Plan, or PEEP, is a bespoke “escape plan” for individuals who may have difficulties evacuating a building to a Total Place of Safety without support or assistance from others.
What type of evacuation is carried out first?
The first type of evacuation is known as stay in place and is used during a chemical or biological attack. You should stay inside your building. Do not go outside.
What are the different levels of fire evacuation?
Evacuation Levels
- Level 1: READY – Level 1 evacuations are an Alert. Residents should be aware of a danger that exists.
- Level 2: SET – Level 2 evacuations indicate there is a significant risk to your area. Now is the time to be set for immediate evacuation.
- Level 3: GO! – Level 3 means there is immediate danger.