As more and more households are opting for smoke and fire detection systems, we thought that it would be a good idea to go into a little detail about how they work. The idea being that if you know how and when they work, you can decide on the best system for you and more importantly where to place it.
In essence, there are three main types of smoke and fire detection systems these are
Let’s take a closer look at each type…
These are probably best suited for detecting fast-flamed fires and are better in rooms where there is a higher risk of fire. However they’re not ideal for kitchen areas because of their high heat sensitivity and therefore might be prone to false alarms. After all, you really don’t want it going off every time you burn the toast right? They work by containing small ionised units which cause electrical current to flow through the air in and around the chamber. When smoke enters it breaks the current and when that happens, it triggers off an alarm.
As the name suggests, heat detectors will only detect heat and not smoke and are therefore ideal in a kitchen environment. Just to confuse you a little, there are two types of heat alarm. A ‘rate-of-rise’ alarm has the ability to detect a rapid rise in temperature or heat between two set temperature points and a ‘fixed heat’ alarm will sound when it detects that the temperature has reached a certain level. These are normally factory set, and generally can’t be altered.
Similarly to ionised fire detectors, photoelectric/optical detectors send a pulsed beam of light through a chamber. When and if smoke is present, the light beam dissipates and gets scattered onto a diode receiver. It’s this action that causes an alarm to sound. These type of detector are better on escape routes and hallways and are designed specifically to detect smouldering fires. They’re also far less prone to false alarms.
Hopefully this has given you some insight into how different fire alarm systems actually work and where best to put them in your home or business. If you want to find out more information or need any other electrical advice or help then contact Static Electrics Brisbane. We’ve been servicing the residents and businesses of the Brisbane suburbs for many years and as such have the knowledge and the skills to deal with just about any electrical situation, no matter how big or small. Contact us today on 0429 139 039 to see just what we can do for you.