It is probably quite evident that there are a number of fire alarms available, and at significantly varying prices, so it could be tough to understand the differences between Optical, Ionisation and Heat alarms. This guide is aimed at taking some of that distress away.
So what is the main difference between the models? As mentioned above you will find three types of alarm, each featuring its own uses.
Optical Alarm: This sort of smoke alarm usually uses an infrared beam between two points, the alarm being triggered should the beam be disturbed. In much exactly the same way as a criminal might trip a security alarm when breaking in to a bank vault or museum in the movies, if the beam is broken, the alarm will go off. It detects larger smoke particles best.
Ionisation Alarm: These alarms use 2 small plates (one charged positively, one negatively) and an alpha particle source to produce a constant current running over the gap in between the plates. When smoke enters the chamber it inhibits this procedure, interrupting the charge. When the charge drops, the alarm goes off. These alarms are best at detecting smaller smoke particles.
Heat Alarms: A heat alarm will trigger in the event the room temperature reaches a specific level. They are doing not detect smoke, and therefore are not for use as an alternative to get a smoke alarm, but needs to be utilized in assisting these alarms for greater fire detection.
Why do we require several types of fire alarm?
Different types of alarm exist because of the several types of fire. Surprisingly, fires act in different ways depending on precisely what is burning, and it is important to identify the fire as quickly as possible. Different alarms are better at discovering different fires, and deciding on the best alarm for the right room could keep your life 1 day.
Fires may be particularly smokey, often caused by the burning of papers or clothing etc, and burn rapidly, producing smaller smoke particles. The Ionisation alarms are better at detecting these fires.
Other fires can be a lot less smokey, often being harder to detect, and are generated by the burning of carpets, sofas or electrical devices. These fires often burn less rapidly, producing larger smoke particles. Optical alarms will likely be better at detecting these fires.
Which fire alarm should i need? This post is meant being a general guide, and for more detailed safety advice it is strongly advised that you contact Emergency Lighting Cheshire. This being said, the data below should assist you to decide.
Optical alarm: Living room area, dining-room, hallway
Ionisation alarm: Bedrooms, walk in wardrobes
Heat alarms: Dusty areas including garages, unconverted lofts etc where the dust could hinder another alarm types.
Alarms are available as either battery operated, or mains byskyu with battery backup. The mains alarms continues to work for a time after power is lost for the unit, but only as a backup. If it is the truth, mains needs to be restored towards the unit right away, or perhaps the battery changed.
Some alarms even include the choice of interconnectivity, meaning if an individual alarm sounds, then each of the alarms sound. This is highly useful in larger properties where one alarm may not be heard by everyone. The idea is always to increase the alarm to everybody right away – the moment a fire starts – and having the alarms linked together will make this happen.
Fires are responsible for a large number of deaths every year, as we know from your adverts broadcast on television or radio. It is a fact, and may be reduced by just checking your alarm to make sure that it really works, and that it is the right alarm for the location it is placed. Remember that alarms need replacing after some time, in fact it is worth checking on the unit and to note the replace by date. In case you are unsure, consult with the local Fire Service.